Items 0
2231
 
 

2231

 

Trip amplifier

 

  • AC/DC trip amplifier
  • 2 adjustable alarm limits
  • Galvanically isolated 3.75 kVAC
  • Front-programmable
  • 3-digit LED display
  • 24 VDC or universal supply
  1. Overview +

  2. Technical details +

  3. Accessories +


Advanced features

  • The front-operated push buttons are used for programming the different standard functions.
  • A password can prevent access for changing parameters.

Application

  • 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.
  • Used in applications where programmable parameters such as hysteresis, setpoint, reset, active relay for increasing or decreasing signal, delay and input signal need to be set.

Technical characteristics

  • 3-digit display showing the input signal in %.
  • Two LED indicating relay status.
  • 3 pushbuttons for programming.
  • Standard DC current input signals in the range 0...20 mA.
  • DC voltage signals in the range 0...250 VDC.
  • AC current signals up to 1 A.
  • True RMS measurement of AC voltage signals in the range 0...250 VAC.
  • Mounting for a standard 11-pole socket which can be adapted for DIN rail or plate use with PR’s 7023 adaptor and 7024 mounting keying.

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 A

  • 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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