Trip amplifier

 

2231

 

  • 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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  1. Overview + -

  2. Technical details + -

  3. Accessories + -

  4. Order and delivery + -

  5. Why choose PR + -

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.

Data sheet & Manuals


Data sheet

Manuals

Manuals in Russian

Supplementary documentation


EU Declaration of Conformity

PR default configurations

Approvals & Certificates


DNV marine certificate

EAC declaration

Metrology Pattern Approval (MPA), Russia

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 VAC / VDC
Max. current 2 A
Max. AC power 500 VA
Max. DC current, resistive load ≤ 30 VDC 2 ADC
Max. DC current, resistive load > 30 VDC See manual for details

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
RoHS 2011/65/EU
EAC TR-CU 020/2011

Approvals

DNV Marine TAA0000101

 

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State-of-the-art manufacturing

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Dedicated Presales / Aftersales

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Product reliability

Product reliability
Although we’d always like to be top of mind, we recognize our job is mainly to provide peace of mind. Install & Forget® is our way of saying that once installed, our devices will continue to perform even in the toughest environments. And we are not afraid to back that statement up with commitments.

 

Product deployment

Product deployment
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