Absolute Process Instruments DuoPak APD 2005 User manual

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1220 American Way Libertyville, IL 60048
Phone: [phone] Fax: [phone]
BSOLUTE ROCESS NSTRUMENTS, Inc.
© 06-14
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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
Free Factory
I/O Setup!
®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
Adjustable via front pot.: 4 to 10 VDC
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 0-25 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
Characteristics
Accuracy: ±0.1% of span (incl. adj. resolution and linearity)
Output ripple and noise: Less than 10 mVRMS
Isolation: Full 5-way, 1200 VRMS minimum
Response Time
70 milliseconds typical
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient, <±0.04% span/°C stability
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
Housing and Connectors
IP 40, requires installation in panel or enclosure
Mounts to standard 35 mm DIN rail
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
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,
Adjustable Excitation Voltage
for Strain Gauge Input
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Made in USA

api-usa.com
1220 American Way Libertyville, IL 60048
Phone: [phone] Fax: [phone]
BSOLUTE ROCESS NSTRUMENTS, Inc.
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 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. Example: for 4-20 mA
output, the Zero control will provide adjustment for the 4 mA
or low end of the signal.
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
Current
Sourcing
Output
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
Current
Sinking
Output
Ch. 1 Ch. 2
21346578
+–
28 Power AC or DC –
26 Earth Ground
25 Power AC or DC +
2625 27 28
1817 19 20
+15V –
mA
Xmtr 1
Ri
Ch. 1
Current Sourcing 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
Electrical Connections
WARNING! All wiring must be performed by a qualified electri-
cian or instrumentation engineer. Consult factory for assistance.
Avoid shock hazards! Turn signal input, output, and power off
before connecting or disconnecting wiring.
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 white serial number label.
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.
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.
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.
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 (+)
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)
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 adjustable and should be set to match
the sensor manufacturer's recommendations.
CAUTION: Never short the excitation leads together. This will
cause internal damage to the module.
API maintains a constant effort to upgrade and improve its products. Specifications
are subject to change without notice. Consult factory for your specific requirements.
To maintain
full isolation
avoid com-
bining power
supplies in
common with
inputs, out-
puts, or unit
power.
Mounting
The housing clips to a standard 35 mm DIN rail. The housing is
IP40 rated and should be mounted inside a panel or enclosure.
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 white model/serial number label for module operating
voltage to make sure it matches available power.
When using DC power, either polarity is acceptable, but for
consistency, wire positive (+) to terminal 25 and negative (–)
to terminal 28.