Mod-tronic DupPak APD 2000 User manual

OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor Two DC Signals
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
Channel 2 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Ripple and Noise
Less than 10 mVRMS
Linearity
Better than ±0.1% of span
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient
Better than ±0.04% of span per °C stability
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
IP 40, requires installation in panel or enclosure with ade-
quate ventilation
For use in Pollution Degree 2 Environment
Mount vertically (as shown in picture) to a 35 mm DIN rail
allowing minimum 1" (25 mm) above and below housing
vents for air circulation
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Removable Plugs
Dimensions and Connectors
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Eight 4-terminal removable connectors, 14 AWG max wire size
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Connect Sink or
Source mA Input
for Each Channel
Custom I/O Ranges
Description
The APD 2000 DuoPak accepts two DC voltage or current
inputs and provides two optically isolated DC voltage or current
outputs that are linearly related to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2000 are 15 VDC loop excitation supplies
for each input channel and 20 VDC loop excitation supplies for
each output channel. These power supplies can be selectively
wired for sinking or sourcing allowing use with any combina-
tion of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2000 DuoPak 2 channel
DC-DC converter/
isolator/transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2000 D 9-30 VDC or 10-32 VAC
Options and Accessories
Universal
Power
Input LoopTracker
LED for Each
Channel
Free Factory
I/O Setup!
®Two Channel Signal Converter/Isolator/Transmitter APD 2000
Channel 1: DC to DC Channel 2: DC to DC
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2000
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2000 accepts two independent DC voltage or current
inputs and provides two independent and optically isolated DC
voltage or current outputs that are linearly related to each input.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
APD 2000
Channel 1 Channel 2
DC to DC DC to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
1413 15 16109 11 12
External
Contacts
for Test
Function
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
To maintain full isolation avoid combining power supplies
in common with inputs, outputs, or unit power.
2221 23 24
+
–
mA
Xmtr 2
Ri
Loop
Power
Source 2
+–
Ch. 2
Current Sinking Input
Voltage
Xmtr 2
– +
2221 23 24
Ch. 2
Voltage Input
1817 19 20
+
–
mA
Xmtr 1
Ri
Loop
Power
Source 1
+–
Ch. 1
Current Sinking Input
1817 19 20
Voltage
Xmtr 1
– +
Ch. 1
Voltage Input
Precautions
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. See diagram for terminal des-
ignations and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop. See note about
terminating an unused mA output channel.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
DC Input Channel 1 Terminal Terminal
Sensor or transmitter with voltage output. 17 (–) 19 (+)
Transmitter with a mA output that pow-
ers the current loop. Typically a 3 or
4-wire device. 17 (–) 19 (+)
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power. 19 (–) 18 (+15 V)
DC Input Channel 2 Terminal Terminal
Sensor or transmitter with voltage output. 21 (–) 23 (+)
Transmitter with a mA output that pow-
ers the current loop. Typically a 3 or
4-wire device. 21 (–) 23 (+)
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power. 23 (–) 22 (+15 V)
Inputs, DC
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and posi-
tion the lower spring clips against
the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Module Power Terminals
Check model/serial number label for module operating voltage to
make sure it matches available power. The power supplies are fuse
protected and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
To avoid
damage to
the module,
do not make
any con-
nections
to unused
terminals
Wire terminal
torque
0.5 to 0.6
Nm or
4.4 to 5.3
in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
*Current
Sourcing
Output
Ch. 1 Ch. 2
Module
powers mA
output loop
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
*Current
Sinking
Output
Ch. 1 Ch. 2
21346578
+–
Module mA
output is
unpowered
+15V –
mA
Xmtr 2
Ri
2221 23 24
Ch. 2
Current Sourcing Input
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current Sourcing Input
*Module
powers mA
input loop
*Module mA
input is
unpowered
* To avoid damage to the module, do not leave any unused
mA inputs or outputs disconnected. Use a 1000 Ohm 1/2
Watt resistor across unused mA terminals.

OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor a DC Signal and Temperature
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
Channel 2 RTD Input Range
Factory configured, please provide complete sensor specifica-
tions and temperature range. 100°F (55°C) minimum span.
RTD input: Resistance at 0°C
Curve (385, 3916, 392 etc.)
Temperature range in °F or °C
RTD resistance: Typically 10 Ωto 2000 Ω, 2 or 3 wire
Excitation current: Typically 10 Ω: 10 mA, 100 Ω: 2 mA,
1000 Ω: 0.5 mA, 2000 Ω: 0.2 mA
Leadwire comp.: < ±0.05% of span per 1 Ωchange in
leadwire resistance, 3 wire sensor
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Connect Sink or
Source mA
for DC Input
Custom I/O Ranges
Description
The APD 2001 DuoPak accepts one DC voltage or current input
and one RTD input and provides two optically isolated DC volt-
age or current outputs that are linearly related to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2001 is a 15 VDC loop excitation supply
for the DC input channel and 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2001
Channel 1: DC to DC Channel 2: RTD Temperature to DC
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2001 DuoPak 2 channel
DC-DC, RTD-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2001 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
21 22 23 24
See Wiring
Diagrams on
Next Page
17 18 19 20

Instructions APD 2001
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2001 accepts one DC voltage or current input and
one RTD input and provides two optically isolated DC voltage or
current outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
APD 2001
Channel 1 Channel 2
DC to DC RTD to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
2221 23 24
2221 23 24
Ch. 2
3-Wire Input
Ch. 2
2-Wire Input
Jumper 22 & 23
1817 19 20
Voltage
Xmtr 1
– +
Ch. 1
Voltage Input
Temperature Input Ch. 2 Term. Term. Term.
Two wire RTD 21 RTD Jumper
22 & 23 23 RTD
Three wire RTD 21 RTD 22 Exc. 23 RTD
Input 2, RTD Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Precautions
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. See diagram for terminal des-
ignations and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
DC Input Channel 1 Terminal Terminal
Sensor or transmitter with a voltage output. 17 (–) 19 (+)
mA output transmitter that powers the cur-
rent loop. Typically a 3 or 4-wire device. 17 (–) 19 (+)
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power. 19 (–) 18 (+15 V)
Input 1, DC
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Module Power Terminals
Check model/serial number label for module operating voltage
to make sure it matches available power. The power supplies
are fuse protected and the unit may be returned to API for fuse
replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current sourcing input
Module powers loop
1817 19 20
+
–
mA
Xmtr 1
Ri
Loop
Power
Source 1
+–
Ch. 1
Current sinking input
Input externally powered
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
3 or 4 wire
mA transmit-
ter or 2 wire
w. power
supply

OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor a DC Signal and Position
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
Channel 2 Potentiometer Input Range
Use any 3 wire full-travel potentiometer
1 VDC excitation provided to potentiometer
Consult factory for other ranges and configurations
Minimum range: 0-100 Ω
Maximum range: 0-1 MΩ
Input impedance: 100Ωto 1 MΩ minimum
Input com. mode rejection: 100 dB minimum
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Custom I/O Ranges
Description
The APD 2003 DuoPak accepts one DC voltage or current
input and one potentiometer input and provides two optically
isolated DC voltage or current outputs that are linearly related
to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2003 is a 15 VDC loop excitation supply
for the DC input channel and 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2003
Channel 1: DC to DC Channel 2: Potentiometer to DC
Connect Sink or
Source mA
for DC Input
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2003 DuoPak 2 channel
DC-DC, Pot.-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2003 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2003
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2003 accepts two independent DC voltage or current
inputs and provides two independent and optically isolated DC
voltage or current outputs that are linearly related to each input.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
APD 2003
Channel 1 Channel 2
DC to DC Potentiometer to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
1817 19 20
Voltage
Xmtr 1
– +
Ch. 1
Voltage Input
2221 23 24
Ch. 2
21 Full Scale*
22 Minimum*
23 Wiper Arm
*May be
switched for
reverse output
DC Input Channel 1 Terminal Terminal
Sensor or transmitter with voltage output. 17 (–) 19 (+)
mA output transmitter that powers the cur-
rent loop. Typically a 3 or 4-wire device. 17 (–) 19 (+)
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power. 19 (–) 18 (+15 V)
Input 1, DC
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Input 2, Potentiometer
The potentiometer must be connected to all three signal input
terminals as shown. 0-100% of the potentiometer range must
be used. A stable 1 VDC source to excite the potentiometer.
Voltage drop is measured across the potentiometer, thus allow-
ing any full-range potentiometer to be used.
Potentiometer Input Channel 2 Terminal
Full scale or high side of potentiometer 21 (+1 VDC)
Zero or low end of potentiometer 22 (–)
Potentiometer wiper arm 23
To maintain
full isolation
avoid com-
bining power
supplies in
common with
inputs, out-
puts, or unit
power.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Precautions
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. See diagram for terminal des-
ignations and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Module Power Terminals
Check model/serial number label for module operating voltage to
make sure it matches available power. The power supplies are fuse
protected and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for consis-
tency, wire positive (+) to terminal 25 and negative (–) to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current sourcing input
Module powers loop
1817 19 20
+
–
mA
Xmtr 1
Ri
Loop
Power
Source 1
+–
Ch. 1
Current sinking input
Input externally powered
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
3 or 4 wire
mA transmit-
ter or 2 wire
w. power
supply

Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Custom I/O Ranges
Description
The APD 2005 DuoPak accepts one DC voltage or current
input and one strain gauge input and provides two optically
isolated DC voltage or current outputs that are linearly related
to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2005 is a 15 VDC loop excitation supply
for the DC input channel and 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2005
Channel 1: DC to DC Channel 2: Bridge/Strain Gauge/Load Cell to DC
OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor a DC Signal and Weight or Pressure
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
Input com. mode rejection: 120 dB minimum
Channel 2 Bridge Input Range
Factory configured, please specify sensor mV/V and mV range
Sensor range: 0-1 mV to 0-2000 mV
Millivolt output range is determined by the sensitivity of the
sensor (mV/V) and the excitation voltage applied.
mV/V sensitivity X excitation voltage = total mV range
Input impedance: 1 MΩminimum
Input common mode rejection: 100 dB minimum
Channel 2 Excitation Voltage
Range: 4 to 10 VDC factory set, please specify
Adjustment: ±10% via front potentiometer
Maximum output: 10 VDC maximum at 30 mA
Stability: ±0.01% per °C
Designed for one 350 Ω(or greater) sensor
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range, excitation voltage
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2005 DuoPak 2 channel
DC-DC, Strain-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2005 D 9-30 VDC or 10-32 VAC
Options and Accessories
Sink or Source mA
for DC Input,
Built-in Excitation Voltage for
Strain Gauge Input
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page
Quick Link
api-usa.com/2000

Instructions APD 2005
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate voltmeter on terminals 22 and 24 adjust
the excitation voltage fine adjustment potentiometer to the
strain gauge manufacturer's recommended value.
3. Using an accurate calibration source, provide an input to the
module equal to the minimum input required for the application.
4. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
5. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
6. Repeat adjustments for both channels for maximum accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2005 accepts one DC voltage or current input and
one strain gauge input and provides two optically isolated DC
voltage or current outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as the
process changes, check the module power or signal input wiring.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring. Note that it may be difficult to
see the LEDs under bright lighting conditions.
APD 2005
Channel 1 Channel 2
DC to DC Strain Gauge to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
Excitation
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
1817 19 20
Voltage
Xmtr 1
– +
Ch. 1
Voltage Input
2221 23 24
Excitation +
Signal +
Strain
gauge
Signal –
Excitation –
See manufacturer's
specifications for
wiring designations.
Shield wires should
be grounded at one
end only.
DC Input Channel 1 Terminal Terminal
Sensor or transmitter with a voltage output. 17 (–) 19 (+)
mA output transmitter that powers the cur-
rent loop. Typically a 3 or 4-wire device. 17 (–) 19 (+)
Transmitter with an unpowered mA output.
Typically a 2-wire device. APD module
provides loop power. 19 (–) 18 (+15 V)
Input 1, DC
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Bridge Input Channel 2 – Terminal + Terminal
Strain gauge signal input 21 (+) 23 (–)
Excitation voltage 22 (–) 24 (+)
Input 2, Bridge, Strain Gauge, Load Cell
Refer to wiring diagram at right and strain gauge manufac-
turer’s data sheet for wiring and color-coding. Polarity must
be observed when connecting input. Sensor shield wire (if
equipped) should be grounded at one end only.
The excitation voltage is factory set and should match the sen-
sor manufacturer's recommendations. A front potentiometer
allows approximately ±10% fine adjustment of the excitation
voltage. CAUTION: Never short the excitation leads together.
This will cause internal damage to the module.
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Precautions
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. See diagram for terminal des-
ignations and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Module Power Terminals
Check model/serial number label for module operating voltage to
make sure it matches available power. The power supplies are fuse
protected and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current sourcing input
Module powers loop
1817 19 20
+
–
mA
Xmtr 1
Ri
Loop
Power
Source 1
+–
Ch. 1
Current sinking input
Input externally powered
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
3 or 4 wire
mA transmit-
ter or 2 wire
w. power
supply

®Two Channel Signal Converter/Isolator/Transmitter APD 2006
OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor a DC Signal and an AC Signal
QConvert/Isolate Dual Output Transmitters
Applications
Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Custom I/O Ranges
Description
The APD 2006 DuoPak accepts one DC voltage or current input
and one AC voltage or current input provides two optically
isolated DC voltage or current outputs that are linearly related
to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2006 is a 15 VDC loop excitation supply
for the DC input channel and 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
Channel 1: DC to DC Channel 2: AC to DC
Channel 1 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
Channel 2 AC Input Range
Factory configured, please specify input type and range
Voltage: 0-50 mVAC to 0-300 VAC
Current: 0-1 mAAC to 0-1000 mAAC
Measurement type: True RMS
Frequency: 40 Hz to 1000 Hz sinusoidal
Voltage input impedance: 220 kΩminimum
Current input voltage burden: 1.0 VRMS maximum
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Connect Sink or
Source mA
for DC Input
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2006 DuoPak 2 channel
DC-DC, AC-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2006 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2006
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2006 accepts one DC voltage or current input and one
AC voltage or current input provides two optically isolated DC
voltage or current outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
APD 2006
Channel 1 Channel 2
DC to DC AC to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
1817 19 20
Voltage
Xmtr 1
– +
Ch. 1
Voltage Input
+15 VDC, 25 mA
sensor power
available at
terminal 22
AC Input 2
2221 23 24
Ch. 2
AC Voltage or mA
Input
DC Input Channel 1 Terminal Terminal
Sensor or transmitter with a voltage output. 17 (–) 19 (+)
mA output transmitter that powers the cur-
rent loop. Typically a 3 or 4-wire device. 17 (–) 19 (+)
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power. 19 (–) 18 (+15 V)
Input 1, DC
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
AC Input Channel 2 Terminal Terminal
Device with an AC voltage or
AC milliamp output. 21 23
Transmitter power supply. 22 (+15 VDC) 23
Input 2, AC
Any polarity may be used for an AC input. A transmitter DC
power supply is available at terminals 22 and 23, but is not
commonly used with an AC input.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Precautions
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. See diagram for terminal des-
ignations and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Module Power Terminals
Check model/serial number label for module operating voltage
to make sure it matches available power. The power supplies
are fuse protected and the unit may be returned to API for fuse
replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current sourcing input
Module powers loop
1817 19 20
+
–
mA
Xmtr 1
Ri
Loop
Power
Source 1
+–
Ch. 1
Current sinking input
Input externally powered
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
3 or 4 wire
mA transmit-
ter or 2 wire
w. power
supply

OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor a DC Signal and Speed
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
Channel 2 Frequency Input Range
Factory configured, please specify input range
Frequency: 0-25 Hz to 0-20 kHz
Any waveform with 5 microsecond min. pulse, 100 mV min.
amplitude change, 100 mV to 150 VRMS amplitude
Channel 2 Sensor Power Supply
15 VDC ±10%, regulated, 25 mADC, <10 mVRMS max. ripple
Channel 2 Characteristics
Impedance at max. sensitivity: 10 kΩnom.
Impedance at min. sensitivity: 100 kΩnom.
Sensitivity/hysteresis adjustment: Multi-turn potentiometer
Sensitivity/hysteresis range: ±25 mV to ±2.5 V typical
Normal mode protection: 200% of input rating
Common mode protection: 600 V input to ground
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Custom I/O Ranges
Description
The APD 2007 DuoPak accepts one DC voltage or current input
and one frequency input and provides two optically isolated DC
voltage or current outputs that are linearly related to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2007 are 15 VDC excitation supplies for
each input channel and 20 VDC loop excitation supplies for
each output channel. These power supplies can be selectively
wired for sinking or sourcing allowing use with any combina-
tion of powered or unpowered I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2007
Channel 1: DC to DC Channel 2: Frequency to DC
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2007 DuoPak 2 channel
DC-DC, Freq.-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2007 D 9-30 VDC or 10-32 VAC
Options and Accessories
Sink or Source mA for
DC Input,
Sensor Power Available
for Frequency Input
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2007
Calibration
Front-mounted Zero and Span potentiometers for each channel can
be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to the
module equal to the minimum input required for the application.
3. Using an accurate measurement device for the output, adjust the
Zero potentiometer for the exact minimum output desired. The
Zero control should only be adjusted when the input signal is at its
minimum. This will produce the corresponding minimum output
signal. For example: 4 mA for a 4-20 mA output or –10 V for a
±10 V output.
4. Set the input at maximum, and then adjust the Span pot for the
exact maximum output desired. The Span control should only
be adjusted when the input signal is at its maximum. This will
produce the corresponding maximum output signal. Example: for
4-20 mA output, set the Span control to 20 mA.
5. Repeat adjustments for both output channels for max. accuracy.
Ch. 1 Sensitivity Adjustment
This multi-turn potentiometer provides an adjustable threshold
level that the incoming signal must overcome before an output can
be produced. This is used to limit noise and minimize false input
signals that may cause erroneous readings.
Fully clockwise: (max. sensitivity), input threshold is ±25 mV.
Fully counterclockwise: (min. sensitivity), input threshold is ±2.5 volts.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output will
return to normal.
Each Test Cal. potentiometer is factory set to approximately 50%
output. Each can be adjusted to set the test output from 0 to 100%
of the output span. Press and hold the Test button and adjust the
corresponding Test Cal. potentiometer for the desired output level.
They may optionally be externally wired for remote test operation or
a manual override. See wiring diagram at right.
Operation
The APD 2007 accepts one DC voltage or current input and one
frequency input and provides two optically isolated DC voltage or
current outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in inten-
sity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as the process
changes, check the module power or signal input wiring. Note that it
may be difficult to see the LEDs under bright lighting conditions.
Two red LoopTracker output LEDs provide a visual indication that the
output signals are functioning. They become brighter as the input
and each corresponding output change from minimum to maximum.
For a current output the red LED will only light if the output loop cur-
rent path is complete. For either current or voltage outputs, failure to
illuminate or a failure to change in intensity as the process changes
may indicate a problem with the module power or signal output wiring.
APD 2007
Channel 1 Channel 2
DC to DC Frequency to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
Sensitivity
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current sourcing input
Module powers loop
1817 19 20
+
–
mA
Xmtr 1
Ri
Loop
Power
Source 1
+–
Ch. 1
Current sinking input
Input externally powered
1817 19 20
Voltage
Xmtr 1
– +
Ch. 1
Voltage input
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
To maintain
full isolation
avoid com-
bining power
supplies in
common with
inputs, out-
puts, or unit
power.
2 Wire
2221 23 24
–
+15 VDC
+Sig
2 wire using 15 V supply
See sensor specs. if
bleed resistor is required
15 kΩtyp.
2 Wire
2221 23 24
2 wire self-generating
–+Sig
3 wire NPN
See sensor specs. if load
resistor is required
NPN
2221 23 24
–
+15 VDC
+Sig
Load resis.
3 wire PNP
See sensor specs. if
load resistor is required
2221 23 24
–
+15 VDC
+Sig
PNP
Load resis.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective enclo-
sure away from heat sources. Do not block air flow. Allow 1" (25
mm) above and below housing vents
for air circulation.
1. Tilt front of module down and position
the lower spring clips against the bot-
tom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward to
release upper mount from top edge
of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Precautions
WARNING! All wiring must be performed by a qualified electrician or
instrumentation engineer. See diagram for terminal designations and
wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or removing
or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un électricien
ou ingénieur en instrumentation qualifié. Voir le diagramme pour
désignations des bornes et des exemples de câblage. Consulter
l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal d'entrée,
le signal de sortie et l'alimentation électrique avant de connecter ou
de déconnecter le câblage, ou de retirer ou d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the input
and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and output
ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power to the
current loop or if the loop must be powered by the APD module.
Typical voltage may be 9-24 VDC at your device's terminals if it
provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Module Power Terminals
Check model/serial number label for module operating voltage to make
sure it matches available power. The power supplies are fuse protected
and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for consis-
tency, wire positive (+) to terminal 25 and negative (–) to terminal 28.
DC Input Channel 1 Terminal Terminal
Sensor or transmitter with a voltage output. 17 (–) 19 (+)
mA output transmitter that powers the cur-
rent loop. Typically a 3 or 4-wire device. 17 (–) 19 (+)
Transmitter with an unpowered mA output.
Typically a 2-wire device. APD module
provides loop power. 19 (–) 18 (+15 V)
Input 1, DC
For milliamp ranges determine if your devices provide power to the
current loop or if the loop must be powered by the APD module.
Typical voltage may be 9-24 VDC at your device's terminals if it
provides power to the loop.
Frequency Sensor Ch. 2 Signal
Com.
Sensor
Power
Signal
Input
2 wire or Namur
requiring external power n/a 22 (+15 V) 23 (+)
2 wire self generating (VR) 21 (–) n/a 23 (+)
3 wire PNP or NPN 21 (–) 22 (+15 V) 23 (+)
Input 2, Frequency
The input range is pre-configured at the factory and no calibration
is needed. The frequency input is compatible with most types of
sensors that product a minimum 100 mV amplitude change and a
minimum 5 microsecond pulse width. A 15 VDC supply is available
to power the sensor if required. Refer to the sensor manufacturer's
data sheet to determine supply voltage and wiring requirements.
Sensor Load
The frequency signal input is capacitively coupled to prevent any DC
in the input. Some sensors, typically those without an internal load
resistor, require a resistive load in order to function.
The resistor value may be specified by the sensor manufacturer
as the "minimum resistive load" or calculated from the sensor
manufacturer's specified "load current range".
The 15 VDC power supply is capable of providing 25 mA. A load current
range of 3 mA to 25 mA would typically use a 5 kΩto 500 Ωresistor.
Cu 60/75°C
conductors
14 AWG
max.
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
Wire
terminal
torque
0.5 to 0.6
Nm or 4.4 to
5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
3 or 4 wire
mA transmit-
ter or 2 wire
w. power
supply

OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor Temperature and a DC Signal
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 RTD or Thermistor Input Range
Factory configured, please provide complete sensor specifica-
tions and temperature range. 100°F (55°C) minimum span.
RTD input: Resistance at 0°C
Curve (385, 3916, 392 etc.)
Temperature range in °F or °C
RTD resistance: Typically 10 Ωto 2000 Ω, 2 or 3 wire
Excitation current: Typically 10 Ω: 10 mA, 100 Ω: 2 mA,
1000 Ω: 0.5 mA, 2000 Ω: 0.2 mA
Leadwire comp.: < ±0.05% of span per 1 Ωchange in
leadwire resistance, 3 wire sensor
Thermistor input: Type (NTC or PTC)
Temperature curve data
Temperature range in °F or °C
Thermistor resist.:Typically 2 kΩto 20 kΩ
Channel 2 DC Input Range
Factory configured, please specify input type and range
Voltage: 0-10 mVDC to 0-100 VDC
Bipolar voltage: ±50 mVDC to ±10 VDC
Current: 0-1 mADC to 0-50 mADC, 4-20 mADC
Voltage input impedance: 200 kΩminimum
Current input impedance: 50 Ωtypical
Input com. mode rejection: 120 dB minimum
Current input voltage burden: 1.25 VDC max. at 20 mA
Input loop power supply: 15 VDC, ±10%, regulated,
25 mADC, may be connected
for sinking or sourcing mA input
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Connect Sink or
Source mA
for DC Input
Custom I/O Ranges
Description
The APD 2010 DuoPak accepts one RTD or thermistor input
and one DC voltage or current input and provides two optically
isolated DC voltage or current outputs that are linearly related
to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
I/O Sink/Source Versatility
Standard on the APD 2010 is a 15 VDC loop excitation supply
for the DC input channel and 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2010
Channel 2: DC to DCChannel 1: RTD or Thermistor Temperature to DC
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2010 DuoPak 2 channel
RTD-DC, DC-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2010 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
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HHHHHH
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HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2010
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2010 accepts one RTD or thermistor input and one DC
voltage or current input and provides two optically isolated DC
voltage or current outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
APD 2010
Channel 1 Channel 2
RTD to DC DC to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
Ch. 1
3-Wire Input
1817 19 20
1817 19 20
Ch. 1
2-Wire Input
Jumper 18 & 19
Precautions
WARNING! All wiring must be performed by a qualified electrician
or instrumentation engineer. See diagram for terminal designa-
tions and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
DC Input Channel 2 Terminal Terminal
Sensor or transmitter with a voltage
output. 21(–) 23 (+)
Transmitter with a mA output that pow-
ers the current loop. Typically a 3 or
4-wire device. 21 (–) 23 (+)
Transmitter with an unpowered mA
output. Typically a 2-wire device. APD
module provides loop power. 23 (–) 22 (+15 V)
Input 2, DC
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Temprature Input Ch. 1 Term. Term. Term.
Two wire RTD or thermistor 17 RTD Jumper
18 & 19 19 RTD
Three wire RTD 17 RTD 18 Exc. 19 RTD
Input 1, Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Module Power Terminals
Check label for module operating voltage to make sure it
matches available power. The power supplies are fuse protect-
ed and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
Wire terminal
torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
+15V –
mA
Xmtr 2
Ri
2221 23 24
Ch. 2
Current sourcing input
Module powers loop
2221 23 24
+
–
mA
Xmtr 2
Ri
Loop
Power
Source 2
+–
Ch. 2
Current sinking input
Input externally powered
Voltage
Xmtr 2
– +
2221 23 24
Ch. 2
Voltage input
3 or 4
wire mA
trans-
mitter
or 2
wire w.
power
supply

OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor Two Temperature Sensors
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 RTD Input Range
Factory configured, please provide complete sensor specifica-
tions and temperature range. 100°F (55°C) minimum span.
RTD input: Resistance at 0°C
Curve (385, 3916, 392 etc.)
Temperature range in °F or °C
RTD resistance: Typically 10 Ωto 2000 Ω, 2 or 3 wire
Excitation current: Typically 10 Ω: 10 mA, 100 Ω: 2 mA,
1000 Ω: 0.5 mA, 2000 Ω: 0.2 mA
Leadwire comp.: < ±0.05% of span per 1 Ωchange in
leadwire resistance, 3 wire sensor
Channel 2 RTD Input Range
Factory configured, please provide complete sensor specifica-
tions and temperature range. 100°F (55°C) minimum span.
RTD input: Resistance at 0°C
Curve (385, 3916, 392 etc.)
Temperature range in °F or °C
RTD resistance: Typically 10 Ωto 2000 Ω, 2 or 3 wire
Excitation current: Typically 10 Ω: 10 mA, 100 Ω: 2 mA,
1000 Ω: 0.5 mA, 2000 Ω: 0.2 mA
Leadwire comp.: < ±0.05% of span per 1 Ωchange in
leadwire resistance, 3 wire sensor
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Custom I/O Ranges
Description
The APD 2011 DuoPak accepts two RTD inputs and provides
two optically isolated DC voltage or current outputs that are
linearly related to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
Output Sink/Source Versatility
Standard on the APD 2011 are 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2011
Channel 1: RTD Temperature to DC Channel 2: RTD Temperature to DC
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2011 DuoPak 2 channel
RTD-DC converter/
isolator/transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2011 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2011
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to
the module equal to the minimum input required for the
application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2011 accepts two RTD inputs and provides two opti-
cally isolated DC voltage or current outputs that are linearly
related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
APD 2011
Channel 1 Channel 2
RTD to DC RTD to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
1817 19 20
Ch. 1
3-Wire Input
2221 23 24
Ch. 2
3-Wire Input
1817 19 20
Ch. 1
2-Wire Input
Jumper 18 & 19
2221 23 24
Ch. 2
2-Wire Input
Jumper 22 & 23
Precautions
WARNING! All wiring must be performed by a qualified electrician
or instrumentation engineer. See diagram for terminal designa-
tions and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Temperature Input Ch. 1 Term. Term. Term.
Two wire RTD 17
Signal –
Jumper
18 & 19
19
Signal +
Three wire RTD 17
Signal –
18
Exc.
19
Signal +
Input 1, RTD Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
Temperature Input Ch. 2 Term. Term. Term.
Two wire RTD 21
Signal –
Jumper
22 & 23
23
Signal +
Three wire RTD 21
Signal –
22
Exc.
23
Signal +
Input 2, RTD Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Module Power Terminals
Check label for module operating voltage to make sure it
matches available power. The power supplies are fuse protect-
ed and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
To avoid dam-
age to the
module, do
not make any
connections
to unused
terminals
Wire terminal torque
0.5 to 0.6 Nm or 4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered

Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Custom I/O Ranges
Description
The APD 2013 DuoPak accepts one RTD input and one potenti-
ometer input and provides two optically isolated DC voltage or
current outputs that are linearly related to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
Output Sink/Source Versatility
Standard on the APD 2013 are 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2013
Channel 1: RTD Temperature to DC
OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor Temperature and Position
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 RTD Input Range
Factory configured, please provide complete sensor specifica-
tions and temperature range. 100°F (55°C) minimum span.
RTD input: Resistance at 0°C
Curve (385, 3916, 392 etc.)
Temperature range in °F or °C
RTD resistance: Typically 10 Ωto 2000 Ω, 2 or 3 wire
Excitation current: Typically 10 Ω: 10 mA, 100 Ω: 2 mA,
1000 Ω: 0.5 mA, 2000 Ω: 0.2 mA
Leadwire comp.: < ±0.05% of span per 1 Ωchange in
leadwire resistance, 3 wire sensor
Channel 2 Potentiometer Input Range
Use any 3 wire full-travel potentiometer
1 VDC excitation provided to potentiometer
Consult factory for other ranges and configurations
Minimum range: 0-100 Ω
Maximum range: 0-1 MΩ
Input impedance: 100 Ωto 1 MΩ minimum
Input com. mode rejection: 100 dB minimum
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Channel 2: Potentiometer to DC
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2013 DuoPak 2 channel
RTD-DC, Pot.-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2013 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2013
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate calibration source, provide an input to the
module equal to the minimum input required for the application.
3. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
4. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
5. Repeat adjustments for both output channels for maximum
accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2013 accepts one RTD input and one potentiometer
input and provides two optically isolated DC voltage or current
outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as
the process changes, check the module power or signal input
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring.
APD 2013
Channel 1 Channel 2
RTD to DC Potentiometer to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
Ch. 1
3-Wire Input
1817 19 20
1817 19 20
Ch. 1
2-Wire Input
Jumper 18 & 19
2221 23 24
Ch. 2
21 Full Scale*
22 Minimum*
23 Wiper Arm
*May be
switched for
reverse output
Precautions
WARNING! All wiring must be performed by a qualified electrician
or instrumentation engineer. See diagram for terminal designa-
tions and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Temperature Input Ch. 1 Term. Term. Term.
Two wire RTD 17
Signal –
Jumper
18 & 19
19
Signal +
Three wire RTD 17
Signal –
18
Exc.
19
Signal +
Input 1, RTD Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
Input 2, Potentiometer
The potentiometer must be connected to all three signal input
terminals as shown. 0-100% of the potentiometer range must
be used. A stable 1 VDC source to excite the potentiometer.
Voltage drop is measured across the potentiometer, thus allow-
ing any full-range potentiometer to be used.
Potentiometer Input Channel 2 Terminal
Full scale or high side of potentiometer 21 (+1 VDC)
Zero or low end of potentiometer 22 (–)
Potentiometer wiper arm 23
Module Power Terminals
Check label for module operating voltage to make sure it
matches available power. The power supplies are fuse protect-
ed and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Cu 60/75°C
conductors
14 AWG
max.
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
Wire terminal torque
0.5 to 0.6 Nm or 4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered

Removable Plugs
Dimensions
1.78" W x 4.62" H x 4.81" D
45 mm W x 117 mm H x 122 mm D
Height includes connectors
Sink or Source
mA Output for
Each Channel
Output LoopTracker
LED for Each
Channel
Adjustable Output
Test Function for
Each Channel
Zero and Span for
Each Channel
Built-in Excitation
Voltage for Strain
Gauge Input
Custom I/O Ranges
Description
The APD 2015 DuoPak accepts one RTD input and one strain
gauge input and provides two optically isolated DC voltage or
current outputs that are linearly related to the inputs.
The input ranges and the output ranges for each channel are
independent and can be specified as required. This provides an
economical two channel solution in one device.
Typical applications include signal conversion, isolation, and
redundancy (i.e. to prevent failure of the entire loop if one
device fails), or a combination of these.
Each input signal is filtered, amplified, and then passed
through an opto-coupler to the output stages. Full 5-way
isolation (input 1, input 2, output 1, output 2, power) make
this module useful for ground loop elimination, common mode
signal rejection, and noise pickup reduction.
Output Sink/Source Versatility
Standard on the APD 2015 are 20 VDC loop excitation sup-
plies for each output channel. These power supplies can be
selectively wired for sinking or sourcing allowing use with any
combination of powered or unpowered milliamp I/O devices.
LoopTracker
API exclusive features include four LoopTracker LEDs (green
for each input, red for each output) that vary in intensity with
changes in the process input and output signals.
These provide a quick visual picture of your process loop at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes output test buttons for each
channel to provide a fixed output (independent of the input)
when held depressed.
Terminals are also provided to operate the test functions
remotely for each channel. This also allows use as a remote
manual override to provide a temporary fixed output if desired.
The test output level for each channel is potentiometer adjust-
able from 0 to 100% of the output span. The output test greatly
aids in saving time during initial startup and/or troubleshooting.
Universal
Power
Input LoopTracker
LED for Each
Channel
®Two Channel Signal Converter/Isolator/Transmitter APD 2015
Channel 1: RTD Temperature to DC
OTwo Independent Channels with Full Isolation
OZero and Span for Each Output
OInput and Output LoopTracker®LEDs
OOutput Test/Manual Override for Each Channel
OBuilt-In I/O Power Supplies
QMonitor Temperature and Weight or Pressure
QConvert/Isolate Dual Output Transmitters
Applications
Channel 1 RTD Input Range
Factory configured, please provide complete sensor specifica-
tions and temperature range. 100°F (55°C) minimum span.
RTD input: Resistance at 0°C
Curve (385, 3916, 392 etc.)
Temperature range in °F or °C
RTD resistance: Typically 10 Ωto 2000 Ω, 2 or 3 wire
Excitation current: Typically 10 Ω: 10 mA, 100 Ω: 2 mA,
1000 Ω: 0.5 mA, 2000 Ω: 0.2 mA
Leadwire comp.: < ±0.05% of span per 1 Ωchange in
leadwire resistance, 3 wire sensor
Channel 2 Bridge Input Range
Factory configured, please specify sensor mV/V and mV range
Sensor range: 0-1 mV to 0-2000 mV
Millivolt output range is determined by the sensitivity of the
sensor (mV/V) and the excitation voltage applied.
mV/V sensitivity X excitation voltage = total mV range
Input impedance: 1 MΩminimum
Input com. mode rejection: 100 dB minimum
Channel 2 Excitation Voltage
Range: 4 to 10 VDC factory set, please specify
Adjustment: ±10% via front potentiometer
Maximum output: 10 VDC maximum at 30 mA
Stability: ±0.01% per °C
Designed for one 350 Ω(or greater) sensor
LoopTracker
Variable brightness LEDs indicate I/O levels for each channel
Channel 1 and Channel 2 Output Ranges
Factory configured, please specify for each output channel
Voltage: 0-1 VDC to 0-10 VDC, 10 mA max
up to 20 VDC with M19, M29, M39
Bipolar voltage: ±1 VDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ωat 20 mA
Output Calibration
Multi-turn zero and span potentiometers for each output channel
±15% of span adjustment range typical
Output Characteristics
Linearity: ±0.1% of span
Temperature stability: Better than 0.04% span/°C
Output ripple and noise: Less than 10 mVRMS
Isolation
Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Output Loop Power Supplies
20 VDC nominal, regulated, 25 mADC for each output channel
May be selectively wired for sinking or sourcing mA output
Output Test
Front buttons set each output to test level when pressed
Each test level potentiometer adjustable 0-100% of span
Installation Environment
Mount vertically to a 35 mm DIN rail
For use in Pollution Degree 2 Environment
IP 40 housing, requires installation inside an enclosure
–10°C to +60°C operating ambient
Connectors
Eight 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Channel 2: Bridge/Strain Gauge/Load Cell to DC
Options—add to end of model number
R1 Channel 1 I/O reversal (i.e. 20-4 mA out)
R2 Channel 2 I/O reversal (i.e. 20-4 mA out)
R3 Channel 1 and channel 2 I/O reversal
M19 Channel 1 high voltage output >10 V up to 20 V
M29 Channel 2 high voltage output >10 V up to 20 V
M39 Channel 1 and channel 2 high voltage output
UConformal coating for moisture resistance
Accessory—order as separate line item
API BP4 Spare removable 4 terminal plug, black
How to Order
Models are factory ranged. See I/O ranges above left.
Ranges and options for each channel must be specified on order
Channel 1 input range
Channel 2 input range, excitation voltage
Channel 1 output range
Channel 2 output range
Model Description Power
APD 2015 DuoPak 2 channel
RTD-DC, Strain-DC
converter/isolator/
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 2015 D 9-30 VDC or 10-32 VAC
Options and Accessories
Free Factory
I/O Setup!
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
HHHHH
HHHHHH
Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
25 26 27 28 29 30 31 32
17 18 19 20 21 22 23 24
See Wiring
Diagrams on
Next Page

Instructions APD 2015
Calibration
Front-mounted Zero and Span potentiometers for each channel
can be used to compensate for load and lead variations.
1. Apply power to the module and allow a minimum 30 minute
warm up time.
2. Using an accurate voltmeter on terminals 22 and 24 adjust
the excitation voltage fine adjustment potentiometer to the
strain gauge manufacturer's recommended value.
3. Using an accurate calibration source, provide an input to the
module equal to the minimum input required for the application.
4. Using an accurate measurement device for the output,
adjust the Zero potentiometer for the exact minimum output
desired. The Zero control should only be adjusted when the
input signal is at its minimum. This will produce the cor-
responding minimum output signal. For example: 4 mA for
a 4-20 mA output or –10 V for a ±10 V output.
5. Set the input at maximum, and then adjust the Span pot for
the exact maximum output desired. The Span control should
only be adjusted when the input signal is at its maximum.
This will produce the corresponding maximum output
signal. Example: for 4-20 mA output, the Span control will
provide adjustment for the 20 mA or high end of the signal.
6. Repeat adjustments for both channels for maximum accuracy.
Output Test Function
When the Test button is depressed it will drive the output with a
known good signal that can be used as a diagnostic aid during
initial start-up or troubleshooting. When released, the output
will return to normal.
Each Test Cal. potentiometer is factory set to approximately
50% output. Each can be adjusted to set the test output from
0 to 100% of the output span. Press and hold the Test button
and adjust the corresponding Test Cal. potentiometer for the
desired output level.
They may optionally be externally wired for remote test opera-
tion or a manual override. See wiring diagram at right.
Operation
The APD 2015 accepts one RTD input and one strain gauge
input and provides two optically isolated DC voltage or current
outputs that are linearly related to the inputs.
Green LoopTracker®input LEDs provide a visual indication that
each signal is being sensed by the input circuitry of the module.
They also indicates the input signal strength by changing in
intensity as the process changes from minimum to maximum.
If an LED fails to illuminate, or fails to change in intensity as the
process changes, check the module power or signal input wiring.
Two red LoopTracker output LEDs provide a visual indication
that the output signals are functioning. They become brighter
as the input and each corresponding output change from
minimum to maximum.
For a current output the red LED will only light if the output loop
current path is complete. For either current or voltage outputs,
failure to illuminate or a failure to change in intensity as the
process changes may indicate a problem with the module
power or signal output wiring. Note that it may be difficult to
see the LEDs under bright lighting conditions.
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
APD 2015
Channel 1 Channel 2
RTD to DC Strain Gauge to DC
Isolated Transmitter Isolated Transmitter
Test Cal.
Span
Zero
Test
Output
Loop
Tracker
Test Cal.
Span
Zero
Test
Output
Input
Loop
Tracker
Loop
Tracker
Input
Loop
Tracker
Channel 1 Channel 2
®
Excitation
1413 15 16109 11 12
External
Contacts
for Test
Function
– + 20V – + 20V
mA
Device 2
Ri
mA
Device 1
Ri
65 7 821 3 4
Ch. 1 Ch. 2
Voltage
Output
– +
Voltage
Device 1
– +
Voltage
Device 2
21 3 4
Ch. 1 Ch. 2
65 7 8
– +
mA
Device 2
Ri
Loop
Power
Source 2
– +
+–
mA
Device 1
Ri
Loop
Power
Source 1
Ch. 1 Ch. 2
21346578
+–
To maintain full isolation avoid combining power supplies in
common with inputs, outputs, or unit power.
2221 23 24
Excitation +
Signal +
Strain
gauge
Signal –
Excitation –
See manufacturer's
specifications for
wiring designations.
Shield wires should
be grounded at one
end only.
1817 19 20
Ch. 1
3-Wire Input
1817 19 20
Ch. 1
2-Wire Input
Jumper 18 & 19
Precautions
WARNING! All wiring must be performed by a qualified electrician
or instrumentation engineer. See diagram for terminal designa-
tions and wiring examples. Consult factory for assistance.
WARNING! Avoid shock hazards! Turn signal input, output, and
power off before connecting or disconnecting wiring, or remov-
ing or installing module.
Précautions
ATTENTION! Tout le câblage doit être effectué par un élec-
tricien ou ingénieur en instrumentation qualifié. Voir le dia-
gramme pour désignations des bornes et des exemples de
câblage. Consulter l'usine pour assistance.
ATTENTION! Éviter les risques de choc! Fermez le signal
d'entrée, le signal de sortie et l'alimentation électrique avant
de connecter ou de déconnecter le câblage, ou de retirer ou
d'installer le module.
Electrical Connections
Polarity must be observed for signal wiring connections. If the
input and/or output do not function, check wiring and polarity.
Each product is factory configured to your exact input and
output ranges as indicated on the serial number label.
Outputs
For milliamp ranges determine if your devices provide power
to the current loop or if the loop must be powered by the APD
module. Typical voltage may be 9-24 VDC at your device's
terminals if it provides power to the loop.
Device for Output Channel 1 Terminal Terminal
Measuring/recording device accepts a
voltage input. 3 (–) 4 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 3 (–) 4 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 2 (–) 3 (+)
Device for Output Channel 2 Terminal Terminal
Measuring/recording device accepts a
voltage input. 7 (–) 8 (+)
Measuring/recording device has
an unpowered or passive mA input.
APD module provides the loop power. 7 (–) 8 (+20 V)
Measuring/recording device has a mA
input and powers the current loop. 6 (–) 7 (+)
Temperature Input Ch. 1 Term. Term. Term.
Two wire RTD 17 RTD Jumper
18 & 19 19 RTD
Three wire RTD 17 RTD 18 Exc. 19 RTD
Input 1, RTD Temperature
The sensor type and temperature range are factory configured.
See the model/serial number label for sensor type and range.
Bridge Input Channel 2 – Terminal + Terminal
Strain gauge signal input 21 (+) 23 (–)
Excitation voltage 22 (–) 24 (+)
Input 2, Bridge, Strain Gauge, Load Cell
Refer to wiring diagram at right and strain gauge manufac-
turer’s data sheet for wiring and color-coding. Polarity must
be observed when connecting input. Sensor shield wire (if
equipped) should be grounded at one end only.
The excitation voltage is factory set and should match the sensor
manufacturer's recommendations. A front potentiometer allows
approximately ±10% fine adjustment of the excitation voltage.
CAUTION: Never short the excitation leads together. This will
cause internal damage to the module.
Mounting to a DIN Rail
Install module vertically on a 35 mm DIN rail in a protective
enclosure away from heat sources. Do not block air flow. Allow
1" (25 mm) above and below housing vents for air circulation.
1. Tilt front of module down and
position the lower spring clips
against the bottom edge of DIN rail.
2. Push front of module upward until
upper mount snaps into place.
Removal
Avoid shock hazards! Turn signal
input, output, and power off.
1. Push up on bottom back of module.
2. Tilt front of module downward
to release upper mount from top
edge of DIN rail.
3. The module can now be removed
from the DIN rail.
Spring Clips
Upper Mount
Module Power Terminals
Check label for module operating voltage to make sure it
matches available power. The power supplies are fuse protect-
ed and the unit may be returned to API for fuse replacement.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.
Cu 60/75°C
conductors
14 AWG
max.
To avoid
damage to
the module,
do not
make any
connections
to unused
terminals
Wire terminal torque
0.5 to 0.6 Nm or 4.4 to 5.3 in-lbs
API maintains a constant effort to upgrade and improve its products.
Specifications are subject to change without notice. See api-usa.com for
latest product information. Consult factory for your specific requirements.
WARNING: This product can expose you to chemicals includ-
ing nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
Current
Sourcing
Output
Current
Sinking
Output
Module
powers mA
output loop
Module mA
output is
unpowered
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