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PR 2231 Trip Amplifier

PR 2231 Trip Amplifier

The 2231 Trip Amplifier is a microprocessor-based unit allowing very accurate setting of process parameters. Each unit is supplied with basic calibration data, allowing the inputs to be programmed to the required signal range without re-adjustment. The user interface of the trip amplifier consists of three push buttons and a 3-digit LED display. The push-buttons can be used for selection of function and for setting any parameter, including set point, reset, active relay for increasing or decreasing signal, delay, and input signal. 2 adjustable Relay Outputs with galvanically isolated 3.75 kVAC. During operation the display shows the input signal as a %. All parameters are protected against unauthorised changes with a password. Options for 24vDC or universal 24-230vAC/DC power supply.

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PR 2231 Programmable Trip Amplifier

Product Discontinuation

Notice

Description

Please Note: This product is due for discontinuation by 12 Nov 2025.

Estimated last date of supply Feb 2026.

Applications

  • Alarm detector in connection with measurement of AC/DC current or voltage signals.
  • The unit is used where accurate setpoint setting and different alarm functions are required.
  • The unit can be used as a single or dual trip amplifier.
  • Alarm detector can be installed in PELV and SELV circuits.

Features

  • AC/DC Trip Amplifier
  • 2 Adjustable Alarm Limits
  • 3.75kVAC Galvanically Isolated
  • Front-Programmable
  • 3-Digit LED Display
  • 24vDC or universal Power Supply

Options

Type Supply
2231

 

 D: 24vDC
P: 24-230vAC &
24-250vDC

 

 

 

Alternative Options for the PR 2331 are as follows:-

4131 Universal Trip Amplifier

4179 Universal AC/DC Transmitter

5116 Universal Programmable Transmitter

Product

Ref

Price

Product Description

2231D

£294.00

PR2231D Programmable Trip Amplifier with 24vDC Power Supply. Inputs configurable for 0-20mA or 0-250V for DC Inputs & 0-1ARMs or 0-250vRMS for AC Inputs. Dual Relay Outputs, 1A @ 24vDC or 2A @ 250vAC. Standard 11-pole relay socket pins for PR 7023 Connection. 3-Digit LED Display shows Current or % value and 2 LED indicating relay status. Operating Temperature -20 to +60°C, 0-95%RH (non-condensing). IP50 Rated case with Dimensions: 80.5 x 35.5 x 84.5mm (without pins).
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2231P

£330.00

PR2231P Programmable Trip Amplifier with 24-230vAC Power Supply. Inputs configurable for 0-20mA or 0-250V for DC Inputs & 0-1ARMs or 0-250vRMS for AC Inputs. Dual Relay Outputs, 1A @ 24vDC or 2A @ 250vAC. Standard 11-pole relay socket pins for PR 7023 Connection. 3-Digit LED Display shows Current or % value and 2 LED indicating relay status. Operating Temperature -20 to +60°C, 0-95%RH (non-condensing). IP50 Rated case with Dimensions: 80.5 x 35.5 x 84.5mm (without pins).
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7002

£4.00

Stainless Steel retention clip for use with 11 point relay socket. Necessary in environments with strong vibrations.
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11-Pole Relay Socket - Part Ref 7023

7023

£18.00

11-Pole Relay socket for coding with screw terminals. For mounting on a DIN rail or directly on the bottom plate. Dimensions (HxWxD) 68 x 38 x 24mm.
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Code Ring and Code Pin for PR 2000 Series - Part Ref 7024

7024

£4.00

Code ring and code pin for coding of the 11-pole relay socket type 7023.
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