
The PR 6331 Programmable Temperature Transmitter is a high-precision industrial temperature transmitter that converts RTD, thermocouple (TC), linear resistance, or mV signals into a standardized 4-20 mA output for process control systems. This versatile signal transmitter offers programmable sensor error values, galvanic isolation, and exceptionally accurate temperature measurement. Thus, the 6331 Series, from PR electronics, is ideal for automation environments such as manufacturing, energy, chemical processing, HVAC systems, and more.
- Linearized temperature measurement with Pt100-Pt1000, Ni100-Ni1000, or TC sensors.
- Conversion of linear resistance variation to a standard analog current signal, for example, from valves or Ohmic level sensors.
- Amplification of a bipolar mV signal to a standard 4-20 mA current signal.
- Models in the 6331 Series are intrinsically safe, galvanically isolated, and feature various certifications for use in hazardous areas.
- Model PR 6331A has certification for mounting in Zone 2 and 22 / Class I, Division 2, Groups A, B, C, D.
- Model PR 6331B has certification for mounting in Zone 0, 1, 2, 21, 22, M1 / Class I, Division 1, Groups A, B, C, D.
PR 6331 Programmable Temperature Transmitter from PR electronics
With support for Pt100-Pt1000, Ni100-Ni1000, and a variety of thermocouples, the PR 6331 Programmable Temperature Transmitter provides reliable, linearized temperature measurement across wide process ranges. Its programmable response time (1-60 s) and cable compensation for 2-, 3-, or 4-wire inputs ensure precise signal conversion even in demanding installations. The transmitter’s galvanic isolation improves noise immunity and also protects connected equipment from electrical interference. Furthermore, programmable output limits and continuous critical data checks enhance system safety and uptime.
- Within a few seconds, users can program the PR 6331 to measure temperatures within all ranges defined by the norms.
- The RTD and resistance inputs have cable compensation for 2-, 3- and 4-wire connection.
- A limit can be programmed on the output signal.
- Continuous check of vital storage data for safety reasons.
Easy Mounting, Installation, and Programming
Ideal for flexible deployment, the PR 6331 Series mounts easily on standard DIN rails and can configure easily using PR Electronics’ Loop Link communication interface. With industry-standard 4-20 mA output and optional NAMUR NE43 upscale/downscale signaling, the 6331 integrates seamlessly with PLCs, SCADA, and DCS platforms to support accurate temperature monitoring and control in modern industrial systems.
- Mounts vertically or horizontally on a DIN rail.
- Using the 2-channel version, up to 84 channels can mount per meter.

Models of the PR 6331 Programmable Temperature Transmitter
| Model ID | Mounting Location | Channels | Configuration |
|---|---|---|---|
| PR 6331A2A | Zone 2 and 22 / Class I, Div 2, Groups A, B, C, D | 1-Channel | RTD/TC/Lin. R/mV Input; Loop-Powered; 4-20 mA Output; Isolated. |
| PR 6331A2B | Zone 2 and 22 / Class I, Div 2, Groups A, B, C, D | 2-Channel | RTD/TC/Lin. R/mV Input; Loop-Powered; 4-20 mA Output; Isolated. |
| PR 6331B2A | Zone 0, 1, 2, 21, 22, M1 / Class I, Div 1, Groups A, B, C, D | 1-Channel | RTD/TC/Lin. R/mV Input; Loop-Powered; 4-20 mA Output; Isolated. |
| PR 6331B2B | Zone 0, 1, 2, 21, 22, M1 / Class I, Div 1, Groups A, B, C, D | 2-Channel | RTD/TC/Lin. R/mV Input; Loop-Powered; 4-20 mA Output; Isolated. |
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