PR Electronics 2231 Trip Amplifier

Features

  • AC/DC trip amplifier
  • 2 adjustable alarm limits
  • Galvanically isolated 3.75 kVAC
  • Front-programmable
  • 3-digit LED display
  • 24 VDC or universal supply
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PR Electronics 2231 Trip Amplifier is a versatile and programmable device designed for monitoring and alarming in applications involving AC/DC current or voltage signals. It features easy front-panel programming and password protection, making it suitable for precise and secure operations.

Advanced Features

  • Front-Operated Programming: Equipped with push buttons on the front panel for programming various standard functions.
  • Password Protection: Parameters can be password-protected to prevent unauthorized changes.

Applications

  • Alarm Detection: Functions as an alarm detector for AC/DC current or voltage signal measurements.
  • Setpoint and Alarm Functions: Ideal for applications requiring accurate setpoint settings and different alarm functions.
  • Single or Dual Trip Amplifier: Can be used as a single or dual trip amplifier for flexible application needs.
  • Programmable Parameters: Suitable for applications where parameters such as hysteresis, setpoint, reset, active relay for increasing or decreasing signal, delay, and input signal need to be programmed.

Technical Characteristics

  • 3-Digit Display: Displays the input signal in percentage (%).
  • Relay Status Indication: Two LEDs indicate the relay status.
  • Programming Pushbuttons: Three pushbuttons for easy programming.
  • Input Signal Ranges:
    • DC Current: 0…20 mA
    • DC Voltage: 0…250 VDC
    • AC Current: Up to 1 A
    • AC Voltage: True RMS measurement in the range 0…250 VAC

Mounting / Installation

  • Standard 11-Pole Socket: Designed for mounting on a standard 11-pole socket, adaptable for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

PR Electronics 2231 Trip Amplifier is a reliable and precise solution for monitoring and alarm detection in various industrial applications. Its programmable parameters, ease of use, and robust design make it suitable for a wide range of measurement and control needs.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -20°C to +60°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP50
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 80.5 x 35.5 x 84.5 mm (D is without pins)
Weight DC / universally supplied 125 g / 175 g
COMMON SPECIFICATIONS
Supply
Supply voltage 19.2…28.8 VDC
Supply voltage, universal 21.6…253 VAC, 50…60 Hz or 19.2…300 VDC
Internal power dissipation 1.5 W (2231D) 2 W (2231P)
Isolation voltage
Isolation voltage, test / working 3.75 kVAC / 250 VAC
PELV/SELV IEC 61140
Response time
Response time (programmable) 0.25…60 s (DC) 0.75…60 s (AC)
Updating time 100 ms
Accuracy Better than 0.1% of sel. range
Signal dynamics, input 16 bit
Effect of supply voltage change < ±0.002% of span / %V
Temperature coefficient < ±0.01% of span /°C (DC signals) < ±0.02% of span /°C (AC signals)
Linearity error < 0.1% of span < ±0.35% of span 50…1000 Hz (AC sine wave signals)
EMC immunity influence < ±0.5%
INPUT SPECIFICATIONS
Common input specifications
Max. offset 50% of selected max. value
Current input
Measurement range 0…20 mA
Min. measurement range (span) 10 mA
Input resistance 50 Ω
AC current input
Measurement range 0…1 ARMS
Min. measurement range (span) 0.5 ARMS
Input resistance 1 Ω / 2 W
Voltage input
Measurement range 0…250 VDC
Min. measurement range (span) 0.5 VDC
Input resistance Nom. 5 MΩ
AC voltage input
AC voltage input 0…250 VRMS
Min. measurement range (span) 0.5 VRMS
Input resistance Nom. 5 MΩ
OUTPUT SPECIFICATIONS
Relay output
Hysteresis 0…99.9% of span
ON and OFF delay 0.0…99.9 s
Max. voltage 250 VRMS
Max. current 2 AAC
Max. AC power 500 VA
Max. load at 24 VDC 1:00 AM
COMMON OUTPUT SPECIFICATIONS
Updating time 100 ms
Relay outputs: Setpoint setting 0…99.9% of span
of span = of the presently selected range
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
LVD 2014/35/EU
EAC TR-CU 020/2011

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