Moore Industries CPA User manual

CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
-AY 201
225-701-01%
PC-Programmable RTD, T/C, Ohms, mV and Potentiometer Limit Alarm Trips
All product names are registered trademarks of their respective companies.
TPRG
CPA

Table of Contents
Introduction ............................................................................................................................................. 4
About this Manual ............................................................................................................ 4
The CPA .......................................................................................................................... 4
Model and Serial Numbers............................................................................................... 4
Options............................................................................................................................. 4
Specifications ................................................................................................. 5
Dimensions ...................................................................................................................... 7
Configuring the CPA....................................................................................... 8
Installing the Configuration Software ............................................................................... 9
Connecting the CPA to the PC ......................................................................................... 9
PC Configuration Software Summary ........................................................ 10
Configuration................................................................................................ 11
Output Level if Failure .................................................................................................... 11
Broken Wire Test Override ............................................................................................. 11
Alarms............................................................................................................................ 12
Trimming/Damping ....................................................................................... 13
Sensor Trim ....................................................................................................................13
Output Trim..................................................................................................................... 15
Loop Test........................................................................................................................ 15
Output Damping............................................................................................................. 16
Output If Measurement OFF .......................................................................................... 16

Custom Table ................................................................................................ 17
Installation..................................................................................................... 18
Mounting the CPA .......................................................................................................... 18
Making the Electrical Connections................................................................................. 18
Recommended Ground Wiring Practices....................................................................... 18
CE Conformity................................................................................................................ 18
Operation....................................................................................................... 18
Maintenance................................................................................................................... 18

4 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
The CPA
The CPA (TPRG) is a PC-Programmable, user-
configurable alarm. The instrument includes two
alarm (relay) outputs and an optional analog output.
The alarms can be configured as trip or fault alarms.
Introduction
This is the users’ manual for the Moore Industries
CPA PC-Programmable Alarm (TPRG: RTD, T/C,
mV, Ohms and Potentiometer Limit Alarm Trips). It
contains all of the information needed to configure,
install, operate, and maintain this instrument.
About this Manual
Wherever you see a “Note”, “Caution”, or “WARNING
” pay particular attention.
WARNING - Hazardous procedure or condition that
could injure the operator.
Caution - Hazardous procedure or condition that could
damage or destroy the unit.
Note - Information that is helpful for a procedure,
condition, or operation of the unit.
Outputs
1PRG
This is a one relay output with a 5A@250Vac or
5A@24Vdc, 50/60Hz non-inductive contact rating. It
is available in a DPDT arrangement. All relay contacts
(NO, NC and COM) are available for use. No jumpers
are required.
2PRG
This is a two relay ouptut with a 5A@250Vac or
5A@24Vdc, 50/60Hz non-inductive contact rating.
The contact arrangement is SPDT. All relay contacts
(NO, NC and COM) are available for use. No jumpers
are required.
Options
Analog Output (-AO)
The analog output range of the CPA (TPRG) can
be voltage or current. The current output is a
configurable source or sink output. Four terminals
are provided to allow voltage/current and current sink/
source selection without the need for jumpers. The
output can be configured to narrower spans from the
PC Configuration program. The range of the current
output is 0–24mA. The range of the voltage output is
-0.5–11V.
RF Option (-RF)
An RF option is also available. This version provides
30V/m RFI/EMI immunity compared to our standard
model which offers 10V/m RFI/EMI immunity.
Figure 1. The CPA (TPRG)
Model and Serial Numbers
Moore Industries uses a system of model and serial
numbers to keep track of all of the information on
every unit it sells and services. If a problem occurs
with your CPA, check for a tag affixed to the unit
listing these numbers. Supply the Customer Support
representative with this information when calling.
Inputs
Refer to Table 3 of this manual for input ranges and
accuracies of the CPA (TPRG).
The CPA has a READY LED to indicate the health of
the unit, an INPUT LED to indicate the status of the
input and a dual color LED, per relay, to indicate alarm
status.
READY
INPUT
ALARM 1
ALARM 2
COMPUTER
PROGRAMMABLE
ALARM
COM

The Interface Solution Experts 5
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Specifications and information subject to change without notice.
Specifications
Alarm Trip Repeatability:
See Table 3
Input Accuracy:
See Table 3
Overall Accuracy: The
overall accuracy of the unit
is the combined input and
output (if any) accuracies.
It includes the combined
effects of linearity,
hysteresis, repeatability,
and adjustment resolution.
It does not include ambient
temperature effect
Mimimum Span at
Specified Accuracy:
See Table 3
Cold Junction
Compensation Accuracy
(T/C Inputs Only): ±0.45°C
Stability: See Table 1
Response Time:
300msec (Defined as time
from step change on input
to alarm state change when
alarm is set to trip midpoint)
Alarm Deadband:
Programmable from
0-100% of input range
Alarm Trip Delay:
0-120 seconds
Line Voltage Effect:
±0.002% of span per 1%
change in line voltage
(ac or dc)
Isolation: Standard unit,
1000Vrms between case,
input and output. 1500Vrms
between power and input
and between power and
output; Unit with -RF option,
500Vrms between case,
input, output and power
Power Consumption:
3W typical, 4W max.
Power Supply Effect:
±0.002% of span per 1%
of line change
Input Impedance: T/C
inputs, 40Mohms, nominal
Input Over-Range
Protection: ±5Vdc
Excitation Current (RTD
and Ohm Inputs Only):
250microamps, ±10%
WITH ANALOG
OUTPUT:
Output Accuracy:
Current, ±0.01% of max.
span (±2 microamps)
Voltage, ±0.01% of max.
span (±1mV)
Response Time:
256msec maximum
(128msec typical) for the
output to change from
10% to 90% of its scale
for an input step change
of 0 to 100%
Ripple: 50mVp-p
maximum on voltage
output; 10mVp-p
measured across a
250 ohm load resistor
for current output.
(Frequencies up to
120Hz)
Output Limiting:
Input over range,
-0.2V/0mA and
10.5V/21.4mA; Input
failure, -0.5V/0mA and
11V/24mA
Output Current Limiting:
25mA max.
Load Effect (current
outputs): 0.01% of span
from 0 to maximum load
resistance on current
output
Maximum Load
Resistance: Current
outputs, 1kohms; Voltage
outputs, 2kohms
LED Type: INPUT LED:
Dual color LED indicates
input failure
READY LED: Green LED
indicates unit is operating
properly
ALARM 1 & ALARM 2 LED:
Dual color LED per relay
indicates alarm status
Operating & Storage
Range: -40°C to +85°C
(-40°F to +185°F)
Relay Range: -25°C to
+70°C (-13°F to +158°F)
Effect of Ambient
Temperature on Cold
Junction Compensation
(T/C Inputs Only):
±0.005°C per °C change of
ambient temperature
Relative Humidity:
0-95%, non-condensing
Ambient Temperature
Effect: ±0.015% of
maximum span/°C
RFI/EMI Immunity
(Standard Unit):
10V/m@20-1000MHz, 1kHz
when tested according to
IEC1000-4-3-1995 with
0.5% of span or less error
RFI Immunity (with -RF
Option):
30V/m@20-1000MHz, 1kHz
AM when tested according
to
IEC1000-4-3-1995 with
0.5% of span or less error
Noise Rejection: Common
mode,
100dB@50/60Hz;
Normal Mode,
See Table 2
653 g (21 oz)
Performance
Performance
with Analog
Output (-AO
Option)
Indicators
Ambient
Conditions
Weight
Performance
(continued)
Table 1. Long-Term Stability
RTD, Ohm, & Pot Inputs
T/C & mV Inputs
Input-to-Analog
Output (Years)
Input-to-Relay
Output (Years)
Stability
(% of maximum
span) 1
0.066
0.047
3
0.114
0.082
5
0.147
0.106
1
0.47
0.008
3
0.081
0.014
5
0.104
0.019
150mV
80mV
250mV
1V
500mV
100mV
1V
250mV
100mV
T/C: J, K, N, C, E
T/C: T, R, S, B
Pt RTD: 100, 200, 300 ohms
Pt RTD: 400, 500, 1000 ohms
Ni: 120 ohms
Cu: 9.03 ohms
Resistance mV
1-4kohms 250-1000
0.25-1kohms 62.5-250
0.125-0.25kohms 31.25-62.5
Table 2. Normal Mode Rejection Ratio Table
Sensor Type Max. p-p Voltage Injection for
100dB at 50/60Hz

6 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Table 3. Accuracy with RTD, Thermocouple, Ohms, Potentiometer and Millivolt Inputs
100
200
300
400
500
1000
100
200
400
500
1000
100
120
9.035
0-4000
4000 max.
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
-200 to 850°C
-328 to 1562°F
-100 to 650°C
-148 to 1202°F
-200 to 510°C
-328 to 950°F
-80 to 320°C
-112 to 608°F
-50 to 250°C
-58 to 482°F
0-4000ohms
0-100%
-180 to 760°C
-292 to 1400°F
-150 to 1370°C
-238 to 2498°F
-170 to 1000°C
-274 to 1832°F
-170 to 400°C
-274 to 752°F
0 to 1760°C
32 to 3200°F
0 to 1760°C
32 to 3200°F
400 to 1820°C
752 to 3308°F
-130 to 1300°C
-202 to 2372°F
0 to 2300°C
32 to 4172°F
-50 to 1000mV
-240 to 960°C
-400 to 1760°F
-150 to 720°C
-238 to 1328°F
-240 to 580°C
-400 to 1076°F
-100 to 360°C
-148 to 680°F
-65 to 280°C
-85 to 536°F
0-4000ohms
0-100%
-210 to 770°C
-346 to 1418°F
-270 to 1390°C
-454 to 2534°F
-270 to 1013°C
-454 to 1855.4°F
-270 to 407°C
-454 to 764.6°F
-50 to 1786°C
-58 to 3246.8°F
-50 to 1786°C
-58 to 3246.8°F
200 to 1836°C
392 to 3336.8°F
-270 to 1316°C
-454 to 2400.8°F
0 to 2338°C
32 to 4240.4°F
-50 to 1000mV
Direct Resistance
Potentiometer
J
K
E
T
R
S
B
N
C
DC
Input Type α Ohms Conformance
Range
Minimum
Span
Input
Accuracy/Repeatability
Maximum
Range
10°C
(18°F)
10ohms
10%
35°C
63°F
40°C
72°F
35°C
63°F
35°C
63°F
50°C
90°F
50°C
90°F
75°C
135°F
45°C
81°F
100°C
180°F
4mV
Ohms
Platinum
Nickel
Copper
0.003850
0.003902
0.003916
0.00672
0.00427
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
±0.1°C
(±0.18°F)
±0.85°C
(±1.53°F)
±0.4ohms
±0.1%
±0.25°C
(±0.45°F)
±0.3°C
(±0.54°F)
±0.2°C
(±0.36°F)
±0.25°C
(±0.45°F)
±0.55°C
(±0.99°F)
±0.55°C
(±0.99°F)
±0.75°C
(±1.35°F)
±0.4°C
(±0.72°F)
±0.8°C
(±1.44°F)
±15 microvolts
T/C
RTD
(2-, 3-,
4-Wire)
mV

The Interface Solution Experts 7
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Top Terminals (Left to Right)
T1 T2 T3 T4 T5 T6 T7 T8 T9
Figure 2. CPA (TPRG) Dimensions
Figure 3. Temperature Sensor Hook-Up Guide
KEY:
AC/DC = Power Input
ACC/DCC = Power Input
COM = Common
DPDT = Double-Pole/Double-
Throw
GND = Ground
NOTES:
1. Terminal blocks can accomodate 14-22 AWG solid wiring.
2. ±IO/±VO labeling is present only when the unit is equipped
with the Analog Output (-AO) option.
IO = Current Output
NO = Normally Open
NC = Normally Closed
Sink = Current Sink
Source = Current Source
SPDT = Single-Pole/Double-
VO = Voltage Output
Table 4. Terminal Designations
+–
143214321432
Thermocouple
and Millivolt
Input
2-Wire RTD
or Decade
Resistance Box
143
2
3-Wire RTD
or Decade
Resistance Box
4-Wire RTD
or Decade
Resistance Box
1432
Potentiometer
Input
Input Type
RTD, Ohm, Potentiometer,
T/C & mV Inputs
+IO
Source
–IO Source
+IO Sink +VO
Not
Present
See Figure 3
Output Type/Power
Single Alarm (DPDT Relay)
Dual Alarms (SPDT Relays)
Bottom Terminals (Left to Right)
B1 B2 B3 B4 B5 B6 B7 B8 B9
NO1 CM1 NC1 NO2 CM2 NC2 AC/DC ACC/DCC GND
Relay 1
NO1
Relay 1
CM1
Relay 1
NC1
Relay 2
NO2
Relay 2
CM2
Relay 2
NC2 AC/DC ACC/DCC GND
–VO
–IO Sink
50mm
(1.97 in) 126mm
(4.97 in)
52mm
(2.05 in)
48mm
(1.89 in)
C
L
133mm
(5.24 in)
138mm
(5.43 in)
100mm
(3.94 in)
WHEN INSTALLED
WHEN INSTALLED
READY
INPUT
ALARM 1
ALARM 2
COMPUTER
PROGRAMMABLE
ALARM
COM

8 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Figure 4. Use the PC Configuration Software to program the CPA (TPRG)
Configuring the CPA
One of the benefits of this alarm is that there are no
internal or external controls to adjust or settings to
change. All operating parameters are set using a PC
and Moore Industries’ Intelligent PC Configuration
software.
The software settings are downloaded to the
instrument in the form of a Configuration File and
stored in the instruments’ memory. You can save a
backup copy of the file on your PC hard drive or disk.
The alarm communicates with the PC through an RS-
232 connection to the PC’s serial port.
PC
READY
INPUT
ALARM 1
ALARM 2
COMPUTER
PROGRAMMABLE
ALARM
COM
AC OR DC
POWER
SUPPLY
GND
MILLIVOLT
SOURCE
OR T/C
SIMULATOR
_
+
OHMS
OR RTD
SIMULATOR
OHMS
OR RTD
SIMULATOR
OHMS
OR RTD
SIMULATOR
3-Wire RTD or
Decade Resistance Input
4-Wire RTD or
Decade Resistance Input Potentiometer Input
INPUT HOOKUP CONNECTIONS
To USB
(COM)
Port of PC
(optional)
To Serial
(COM)
Port of PC

The Interface Solution Experts 9
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Variable Input Simulator for Thermocouple,
RTD, Millivolt, Potentiometer, or Decade
Resistance Box
Power Supply
Table 5. Assembling the equipment needed to configure the CPA (TPRG)
Device Specifications
Connecting the CPA to the PC
Connect the RS-232 end of the cable to the PC’s
COM port.
See Table 5 for information on the necessary
equipment.
Accurate to ±0.009% of span; e.g., HP Model 3478A
1. I nsert the Moore Industries Interface Solution
PC Configuration Software CD into the CD
drive of the PC. Access the CD and open the
“CPA CPT PC Configuration Software” folder.
2. Double-click the installation program located
in the folder. Follow the prompts to correctly
install the program
.
Once the Configuration Program is installed on the
PC, the CPA can be connected to equipment to
simulate input and monitor output. You can then
change the operating parameters of the alarm.
No Alarm Needed
It is not necessary to connect the CPA to a PC to
create configuration files using the software. The
Configuration Program can be run without connecting
an alarm, and most parameters can be set without
benefit of input from a sensor or CPA.
This makes it easy to create a set of operating
parameters, save them to disk, and download them to
one or more instruments at a later time.
The CPA must be connected to the PC in order to:
trim input, trim output, assign a tag, perform a loop
test, receive (via download) a configuration file, and
save the configuration file from the alarm’s memory.
Variable; Accurate to ±0.05% of unit span
24Vdc, ±10% or 117/230Vac (depending on configuration)
)
Version 1.0 or greater, successfully installed to the hard drive
80386-based(or faster) IBM PC, or 100% compatible;
4Mb free RAM; 8Mb recommended; 20Mb free disk space on hard drive
(More RAM & hard disk space is required for Windows NT, 2000, XP, Vista, or 7)
Microsoft Windows®NT, 2000, XP, Vista, or 7
Internet Explorer 3.0+
1 (one) serial port (COM 1, 2, 3, or 4) set to 9600 baud, no parity, 8 data bits,
and 1 stop bit or one available USB port (with optional USB cable)
Moore Industries PC
Configuration Software
Installing the Configuration Software
Refer to Table 5 for the equipment needed.
Communication Cable Part# 803-053-26 or optional USB cable, Part# 208-236-00A
Multimeter (optional)
Personal Computer

10 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Figure 5. Most of the CPA (TPRG) Operating Parameters can be set from the Main Screen of the Configuration Program
Once the default configuration has been saved to
disk, it is safe to program other parameters. The PC
Software is made up of these sections:
1. Status– This portion of the program displays the
activity of the connected unit. It will show the COM
Port being used and the Measurement Mode.
2. Measurements– Displays current software
processes and indications. Allows you to select
the decimal place of your process variable (Decimal
Places (PV)) indication and monitor up to two
configuration variables (Monitored Vars).
3. Device Information– This “read-only” display
indicates firmware version, hardware revision,
serial number, calibration date, software version,
configuration date and the last configuration source.
4. Communication– From here you may enable Start
Measurements and Stop Measurements, upload your
configuration to PC or download your configuration to
the unit, save your configuration to a file, and print out
your configuration settings.
5. Input Configuration– Set 50/60Hz Rejection
Selection and selection of °C or °F. Allows you to
choose input type. You may also enable Input Trim,
Output Trim, Custom Table and Broken Wire Test
functions.
6. Device Configuration– Use this parameter to
place an identifying “Message” (32 alphanumeric
characters max.), select an “I.D. Tag” (8 alphanumeric
characters max.) and a “Descriptor” (16 alphanumeric
characters max.).
7. Output Configuration– Use this section to select
your output configuration and output limits.
8. Output Level if Failure– Used to select
configuration of Upscale/Downscale Drive failure
detection of sensor or sensor wiring. Refer to Output
Level if
Failure section for a complete description.
PC Configuration Software Summary
1
2
3
4
5
6
7
8
9
11 12
10

The Interface Solution Experts 11
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
9. Broken Wire Test Override- Allows you to enable
or disable the Broken Wire Test by clicking the “BW
ON” or “BW OFF” buttons. Refer to the Broken Wire
Test Override section for a complete description.
10. Alarm Parameters– Use this to choose an
alarm mode and configure as either a Trip, Fault or
Band alarm. Select whether to use as a Fail Safe or
NON Fail Safe Alarm. You may also choose a Delay
(0-120sec) and a Deadband (0-100%). Refer to the
Alarms section for a complete description.
11. Trimming/Damping Tab– Selecting this
parameter allows you to perform Sensor Trim, Output
Trim and Output Damping functions. Refer to the
Trimming/Damping section for a complete description.
12. Custom Table Tab– The CPA has two modes of
operation: linear mode and custom mode. In linear
mode, the scaled output is proportional to the scaled
input. In custom mode, reached by selecting the Cus-
tom Table Tab, you define a special linearization func-
tion. Refer to the Custom Table section for a complete
description.
Configuration
Output Level if Failure
In the Output Level if Failure section you will notice
Down Scale and Up Scale selection. Using its output,
the CPA can be configured to provide a special
warning of a breakdown or failure. Use this setting to
configure the instrument to drive its output either up or
down when a failure is detected. For current outputs,
limits are 3.6mA (downscale) and 23.6mA (upscale);
for voltage outputs, limits are -0.5V (downscale) and
11.0V (upscale).
When a failure is detected, the “Fail Last” feature, if
enabled, holds the last measured value before the
failure occurred.
If the “User Selected” feature is enabled, you may
enter any value, within the range, to view at the output
when a failure is detected.
Broken Wire Test Override
During operation, the CPA sends random microamp
pulses through input wiring to check for broken wiring
or a burned out sensor.
Upon power-up Broken Wire Test is enabled. If a
problem is detected, “Broken Wire Failure” in the
Process Information section of the configuration
program will light to indicate a problem. The Broken
Wire Test may be temporarily disabled by clicking the
“BW OFF” button in the Broken Wire Test Override
section.
Note:
Once you have configured all parameters,
download to the unit by either selecting “Download
Configuration” in the Configuration dropdown menu
located in the Communications bar or by clicking the
button.

12 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Alarms
Trip Low and Trip High Alarms
In the Alarm Parameters portion of the Configuration
Program you may choose a “Trip Low” and “Trip High”
limit. In choosing your limits you are setting the
parameters for your unit to notify you if your process
input drops below (Trip Low) or exceeds (Trip High)
your trip point setting.
Deadband
Deadband (0-100%) is a type of buffer zone. It allows
an alarm to remain tripped even after the process
input has returned to, or passed, the trip point. If
no deadband is set, the alarm will reset itself once
reaching the trip point.
Fail Safe/NON Fail Safe Alarms
A Fail Safe alarm, if in the alarm condition, will remain
in the alarm condition even if power to the unit is
removed.
Fail Safe alarm trip relays are energized whenever the
process input is in a non-alarm condition (including
any deadband setting). These relays de-energize
when the process input trips the alarm.
NON Fail Safe alarm trip relays are energized
whenever the process input is in an alarm condition.
These relays de-energize when the process input
returns to the reset point (including any deadband).
Band Alarm
The Band Alarm incorporates Low and High Trip
points, Deadband and Delay (0-120sec).
The Band Alarm combines two Trip Alarm settings.
The first alarm is always configured as Low Trip
(Trip Point Low) and the second as High Trip (Trip
Point High). See Figure 6 for information on alarm
parameters.
The Band Alarm is activated when the Process
Variable is outside of the Low/High Trip point ranges.
The Trip Low is always lower than the Trip High and
their deadbands are inside the range of Low/High Trip.
The span between the Low and High Trip is not limited
which allows control of measurements in a very narrow
range.
The two alarms can be set in any combination. For
example, Alarm 1 can be set as the Band Alarm and
Alarm 2 as the Fault Alarm. Conversely, both alarms
can also be set as Band Alarms.
The HI/LO Alarm can be used when the input signal
reaches a critical level. The HI/HI / LO/LO Alarm is
used to provide early warning that an action is required
before a dangerous level is reached. See Figure 7 for
details.
Fault Alarm
To simply be alerted in the case of any fault that may
arise, select the “Fault Alarm” button. This requires no
parameters to be set and will notify you anytime a fault
is sensed.
Note:
Once you have configured all parameters,
download to the unit by either selecting “Download
Configuration” in the Configuration dropdown menu
located in the Communications bar or by clicking the
button.
Figure 6. Band Alarm Parameter Graph
Figure 7. Two Alarm Functionality Graph

The Interface Solution Experts 13
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Trimming/Damping
Figure 8. PC Configuration Software Trimming/Damping Tab
To access the Trim feature, click the Trimming/
Damping tab . Trimming increases the measurement
accuracy of the parameter you are trimming by
either matching the reading of its actual input to its
scaling (Sensor Trimming) or calibrating the output
to the device receiving the output (Output Trimming).
Damping allows you to introduce a delay into the
response of your transmitter in order to stop short-
lived spikes from setting off alarms. Refer to Figure 9
for hookup.
Sensor Trim
Sensor Trimming increases the measurement
accuracy of your CPA by matching the reading of
its actual input to either a calibrated source or the
device to which it is connected. This verifies that the
input from the sensor to the alarm is being interpreted
correctly.
The CPA can trim any point along the scale. Note
that one-point trimming applies an offset to the sensor
reading, while two-point trimming applies both an
offset and a gain.
Before you attempt to perform the Sensor Trim
function ensure that the Status section of the screen
indicates “Measurements On”. Sensor Trim can be
done only when the measurements are on. To do this
click the Mode dropdown box, from the menu bar, and
select “Measurements On”.
1. Select either one trim point or two trim points by
clicking the appropriate button. Each pair consists of
“trim” and “captured” values.
2. Enter the values that need to be trimmed into the
corresponding fields.
3. Apply the targeted signal to the input, wait until
it settles and click “Point 1 Trim” to capture the
measured value. If you chose “Two-point Trim” repeat
the step above for the second point and click “Point 2
Trim”.
4. To enable input trim and the values stored, click the
“Input Trim ON”.

14 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Figure 9. Trimming the CPA (TPRG)
READY
INPUT
ALARM 1
ALARM 2
COMPUTER
PROGRAMMABLE
ALARM
COM
AC OR DC
POWER
SUPPLY
GND
MILLIVOLT
SOURCE
OR T/C
SIMULATOR
_
+
OHMS
OR RTD
SIMULATOR
CURRENT OUTPUT SOURCE
+-
+
-
EXTERNAL
POWER
SUPPLY
+-
CURRENT OUTPUT SINK
TRIM CONFIGURATION
MULTIMETER
OR
DCS MULTIMETER
OR
DCS
+-
MULTIMETER
OR
DCS
VOLTAGE OUTPUT

The Interface Solution Experts 15
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Output Trim
Output Trimming increases the measurement accuracy
of your CPA by calibrating its analog output to the
device that is receiving the output. This ensures that
the instrument is being correctly interpreted.
Before you attempt to perform the Output Trim
function ensure that the Status section of the screen
indicates “Measurements Off”. To do this click the
Mode dropdown box from the Menu bar and select
“Measurements Off”.
1. Select either “Output: mA” or “Output: V”, whichever
is appropriate for your application.
2. Attach a multimeter to the analog output and select
the “4mA” or “0V” button. Use the scroll bar to trim the
measured output to your desired value.
3. With the multimeter still connected select the
“20mA” or “10V” button. Use the scroll bar to trim the
measured output to your desired value.
4. To enable Output Trim and the values stored, click
the “Output Trim ON”.
5. Set Status back to “Measurements On”.
If selected, the user trim values will be used and the
manufacturer settings will be nullified.
Loop Test
A Loop Test may be performed in order to check
output performance and accuracy and to trim other
instruments in the loop. Your output will be a current
value, in mA, or a voltage equal to the value you input.
You can check the other current devices on the loop
and calibrate them to this signal.
This feature is independent of the input. If you find
that the output requires adjustment you may perform
the Output Trim function.
1. To use the Loop Test function select the Mode
dropdown box in the Communications bar and select
“Measurements Off”.
2. Next, in the “Output Value %” box, type the
percentage of the output value you wish to test. You
may also use your mouse, left click and adjust the
scroll bar to adjust to your desired value. Hit “Enter”.
3. In the “Output Value” box enter the value, within
your configuration range, that you wish to signify as
your output value. Hit “Enter”.
4. Perform your test and calibration.
5. When you are finished, return to Mode in the
Communications bar and reset your status to
“Measurements On”.

16 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Output Damping
Output Damping allows you to introduce a delay into
the response of your unit in order to stop short-lived
spikes from setting off alarms. Output Damping is
activated when the value set in the “Output Step
Threshold” field is exceeded.
1. To enable output damping, select the “Enabled”
button. If you do not wish to use the damping feature,
then select “Disabled”.
2. Insert a value between 1 and 16mA in the “Output
Step Threshold” field. This is how much of an output
step change is allowed in a specified time frame
before flagging the software.
3. Insert a value between .5 and 120sec in the
“Damping Sec” field. This is the amount of time it will
take for the output to reach 63% of the step output
change once the input exceeds the value in the
“Output Step Threshold” field.
By checking the appropriate box in the Other Damping
Options section, you may also choose to select Output
Damping to occur upon power up or start up from
a PC, upon broken wire failure detection or upon
resolution of broken wire failure.
A typical damping situation would be described as a
step change in output which causes the output to go
from 5.6mA to 20mA. After five seconds the output
reaches 14.58mA which equals 63% of the output
step change. This is graphed in Figure 10.
Output if Measurement OFF
Choose “Zero Range” to read zero volts or mA at
output if measurement was off.
Choose “Stay Last” to read the last value held before
the measurement was off.
Figure 10. Typical Damping Scenario
In this instance, detection of an open sensor or broken
wire could be a cause. An instrument malfunction or
Adc/EEPROM failure may also be suspect.
Figure 11. Damping When Output Driven Upscale to 23.6mA
A possible source for this occurence is a rapid change
on the input. Another possiblity would be an existing
output level of 5.6mA upon Start Measurements from
a PC.
Figure 11 gives another damping example where the
output has been driven upscale to 23.6mA. After
five seconds the 63% output change is reached at
16.98mA.
Note:
Once you have configured all parameters,
download to the unit by either selecting “Download
Configuration” in the Configuration dropdown menu
located in the Communications bar or by clicking the
button.

The Interface Solution Experts 17
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Figure 12. PC Configuration Software Custom Table Tab
Custom Table
The Custom Table feature allows you to setup your
own custom curve table (Figure 12). This allows you
to tell the CPA what it should output when it receives
a certain input. This feature also allows you the ability
to write a table in Microsoft®Excel and save it in a .csv
format. The files are saved to/read to/read from the
“Moore Industries\Custom Curves” folder. This makes
it simple to save the custom table for downloading to
multiple units or for backup purposes.
The linearization will be in the form of X, Y coordi-
nates. You may choose up to 128 points.
To access this function click the Custom Table tab.
1. Select the number of points you are to set and
insert this value into the “Number Of Points” line, hit
“Enter”. This will highlight the number of points you
have selected.
Note:
To clear the table and start over at any time, click
“Clear Table”.
2. Type your individual values in the X and Y columns.
Source variables are inserted into the X Column while
the corresponding data is inserted into the Y Column.
3. To save the displayed custom table to your hard
drive click the “Save Table” button.
To open or use this saved table at a later time, click
the “Open Table” button and select the folder in which
it has been saved.
Use the “Table EGU” box to enter any alphanumeric
engineering unit (up to 6 digits).
To use the Custom Table feature in your operation,
check the “Custom Table ON” box.
Note:
Once you have configured all parameters,
download to the unit by either selecting “Download
Configuration” in the Configuration dropdown menu
located in the Communications bar or by clicking the
button.

18 The Interface Solution Experts
CPA
PC-Programmable RTD, T/C, Ohms, mV
and Potentiometer Limit Alarm Trips
Operation
Once programmed, calibrated, installed, and supplied
with the correct power, the CPA alarm begins to
operate immediately. Depending upon environmental
conditions, it can be expected to operate unattended
for extended periods of time.
Moore Industries suggests a quick check for terminal
tightness and general unit condition every 6-8
months. Always adhere to any site requirements for
programmed maintenance.
Maintenance
Customer Support
Moore Industries is recognized as the industry leader
in delivering top quality to its customers in products
and services. We perform a battery of stringent
quality assurance checks on every unit we ship. If
any Moore Industries product fails to perform up
to rated specifications, call us for help. Our highly
skilled staff of trained technicians and engineers pride
themselves on their ability to provide timely, accurate,
and practical answers to your process instrumentation
questions.
Factory phone numbers are listed on the back cover of
this manual.
If problems involve a particular CPA, there are several
pieces of information that can be gathered
before you call the factory that will help our staff get
the answers you need in the shortest time possible.
For fastest service, gather the complete model and
serial number(s) of the problem unit(s) and the job
number of the original sale.
Installation
Installation consists of physically mounting the unit
and completing the electrical connections.
Mounting the CPA
The CPA can be mounted on standard DIN mounting
rails.
Making the Electrical Connections
Please refer to Figure 4 for electrical connections.
Recommended Ground Wiring
Practices
Moore Industries recommends the following ground
wiring practices:
• Any Moore Industries product in a metal case or
housing should be grounded.
• The protective earth conductor must be connected
to a system safety earth ground before making any
other connections.
• All input signals to, and output signals from, Moore
Industries’ products should be wired using a
shielded, twisted pair technique. Shields are to be
connected to an earth or safety ground at the unit
itself.
• The maximum length of unshielded input
and/or output signal wiring should be
two inches.
CE Conformity
Installation of any Moore Industries’ products that
carry the CE certification must adhere to the
guidelines above in order to meet the requirements set
forth in the European EMC and Low Voltage Directives
(EN 61326 and EN 61010). Consult the factory for the
most current information on products that have been
CE certified.

To return equipment to Moore Industries for repair, follow these four steps:
1. Call Moore Industries and request a Returned Material Authorization (RMA) number.
Warranty Repair –
If you are unsure if your unit is still under warranty, we can use the unit’s serial number
to verify the warranty status for you over the phone. Be sure to include the RMA
number on all documentation.
Non-Warranty Repair –
If your unit is out of warranty, be prepared to give us a Purchase Order number when
you call. In most cases, we will be able to quote you the repair costs at that time.
The repair price you are quoted will be a “Not To Exceed” price, which means that the
actual repair costs may be less than the quote. Be sure to include the RMA number on
all documentation.
2. Provide us with the following documentation:
a) A note listing the symptoms that indicate the unit needs repair
b) Complete shipping information for return of the equipment after repair
c) The name and phone number of the person to contact if questions arise at the factory
3. Use sufficient packing material and carefully pack the equipment in a sturdy shipping con-
tainer.
4. Ship the equipment to the Moore Industries location nearest you.
The returned equipment will be inspected and tested at the factory. A Moore Industries rep-
resentative will contact the person designated on your documentation if more information is
needed. The repaired equipment, or its replacement, will be returned to you in accordance
with the shipping instructions furnished in your documentation.
WARRANTY DISCLAIMER
THE COMPANY MAKES NO EXPRESS, IMPLIED OR STATUTORY WAR-
RANTIES (INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
OF FITNESS FOR A PARTICULAR PURPOSE) WITH RESPECT TO ANY
GOODS OR SERVICES SOLD BY THE COMPANY. THE COMPANY DIS-
CLAIMS ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING
OR TRADE USAGE, AND ANY BUYER OF GOODS OR SERVICES FROM
THE COMPANY ACKNOWLEDGES THAT THERE ARE NO WARRANTIES
IMPLIED BY CUSTOM OR USAGE IN THE TRADE OF THE BUYER AND
OF THE COMPANY, AND THAT ANY PRIOR DEALINGS OF THE BUYER
WITH THE COMPANY DO NOT IMPLY THAT THE COMPANY WARRANTS
THE GOODS OR SERVICES IN ANY WAY.
ANY BUYER OF GOODS OR SERVICES FROM THE COMPANY
AGREES WITH THE COMPANY THAT THE SOLE AND EXCLUSIVE REM-
EDIES FOR BREACH OF ANY WARRANTY CONCERNING THE GOODS OR
SERVICES SHALL BE FOR THE COMPANY, AT ITS OPTION, TO REPAIR
OR REPLACE THE GOODS OR SERVICES OR REFUND THE PURCHASE
PRICE. THE COMPANY SHALL IN NO EVENT BE LIABLE FOR ANY CON-
SEQUENTIAL OR INCIDENTAL DAMAGES EVEN IF THE COMPANY FAILS
IN ANY ATTEMPT TO REMEDY DEFECTS IN THE GOODS OR SERVICES
, BUT IN SUCH CASE THE BUYER SHALL BE ENTITLED TO NO MORE
THAN A REFUND OF ALL MONIES PAID TO THE COMPANY BY THE BUYER
FOR PURCHASE OF THE GOODS OR SERVICES.
RETURN PROCEDURES
ANY CAUSE OF ACTION FOR BREACH OF ANY WARRANTY BY
THE COMPANY SHALL BE BARRED UNLESS THE COMPANY RE-
CEIVES FROM THE BUYER A WRITTEN NOTICE OF THE ALLEGED
DEFECT OR BREACH WITHIN TEN DAYS FROM THE EARLIEST DATE
ON WHICH THE BUYER COULD REASONABLY HAVE DISCOVERED
THE ALLEGED DEFECT OR BREACH, AND NO ACTION FOR THE
BREACH OF ANY WARRANTY SHALL BE COMMENCED BY THE
BUYER ANY LATER THAN TWELVE MONTHS FROM THE EARLIEST
DATE ON WHICH THE BUYER COULD REASONABLY HAVE DISCOV-
ERED THE ALLEGED DEFECT OR BREACH.
RETURN POLICY
For a period of thirty-six (36) months from the date of shipment, and under
normal conditions of use and service, Moore Industries (“The Company”)
will at its option replace, repair or refund the purchase price for any of its
manufactured products found, upon return to the Company (transportation
charges prepaid and otherwise in accordance with the return procedures
established byThe Company), to be defective in material or workmanship.
This policy extends to the original Buyer only and not to Buyer’s customers
or the users of Buyer’s products, unless Buyer is an engineering contractor
in which case the policy shall extend to Buyer’s immediate customer only.
This policy shall not apply if the product has been subject to alteration,
misuse, accident, neglect or improper application, installation, or operation.
THE COMPANY SHALL IN NO EVENT BE LIABLE FOR ANY INCIDENTAL
OR CONSEQUENTIAL DAMAGES.
Specifications and Information subject to change without notice.
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© 2004 Moore Industries-International, Inc.