CPT (Current/Voltage Input)0 pages

CPT

PC-Programmable Temperature Transmitter
and Signal Isolator/Converter
September 2004

Description
The universal CPT PC-Programmable Temperature
Transmitter and Signal Isolator/Converter accepts a
direct signal input from a wide array of sensors and
analog devices:
• 23 RTD Types
• 9 Thermocouple Types
• Current and Voltage Signals
• Resistance and Potentiometer Devices
• Direct Millivolt Sources
The 4-wire (line/mains-powered) CPT provides an
isolated and linear current or voltage output (any
range within 0-20mA or 0-10V) proportional to the
input. The signal is ready for direct interface with
readout instruments, recorders, PLC, DCS, or PCbased SCADA systems.

The CPT features a metal, RFI resistant housing that
snaps onto standard DIN-style rails.

User-Selectable Failure Mode
Upon input failure, the CPT’s analog output can be
user-set for upscale or downscale drive, fail to last
value, or fail to selected value.

• 20-bit input resolution. Delivers industry-best
digital accuracy for both sensor (RTD and
thermocouple) and analog (current/voltage) inputs.

Figure 1. Available CPT models deliver versatile and
programmable input and output choices.
Programmable
Input
RTD
T/C
ohms
mV

CPT

COMPUTER
PROGRAMMABLE
TRANSMITTER

INPUT
READY

Programmable
Output
Analog Output
Any Range
Between 0-20mA
or 0-10V

ALARM

mA
V
COM

Single Relay
(optional)

Features
• Universal plant standard. There’s no need to
stock dozens of different fixed range transmitters.

• PC-programmable with Windows® software.
From a single screen, you can choose, and then
view to confirm, all of your application specific
operating parameters from a PC.
• Long-term stability. Provides up to 5 years
between scheduled calibrations.
• Combined alarm trip and transmitter. The alarm
trip (-C) option reduces costs and installation time
when both transmitter and alarm functions are
needed at the same location.
• Isolated and RFI/EMI protection. Delivers
superior protection against the effects of ground
loops and plant noise, and radio frequency and
electromagnetic interference.
Certifications*

4-Wire (Line/Mains) Powered
24Vdc, 117Vac, 230Vac

CE Conformant – EMC Directive 89/336/EEC
EN 61326; Low Voltage Directive 73/23/EEC EN 61010
* ATEX, CSA and FM certifications are in submittal.

2004 Moore Industries-International, Inc.
225-710-02B

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