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Home > EN > Product > PR Electronics > Special devices > Special devices Series 2000 > 2231

2231.png

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

Manuals : pdf-icon.png

Data sheet : pdf-icon.png

  • Overview

  • Technical details

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    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.

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    Environmental Conditions

    Specifications range -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 voltage 19.2...28.8 VDC
    Supply voltage, universal 21.6...253 VAC, 50...60 Hz or 19.2...300 VDC
    Internal consumption 1.5 W (2231D) 2 W (2231P)
    Isolation voltage, test / working 3.75 kVAC / 250 VAC
    Response time (programmable) 0.25...60 s (DC) 0.75...60 s (AC)
    Updating time 100 ms
    Accuracy Better than 0.1% of selected 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

    Max. offset 50% of selected max. value
    Current input: Measurement range 0...20 mA
    Min. measurement range (span), current input 10 mA
    Input resistance, current input 50 Ω
    AC current input: Measurement range 0...1 ARMS
    Min. measurement range (span), AC current 0.5 ARMS
    Input resistance, AC current 1 Ω / 2 W
    Voltage input: Measurement range 0...250 VDC
    Min. measurement range (span), voltage input 0.5 VDC
    Input resistance, voltage input Nom. 5 MΩ
    AC voltage input: Measurement range 0...250 VRMS
    Min. measurement range (span), AC voltage 0.5 VRMS
    Input resistance, AC voltage Nom. 5 MΩ

    Output specifications

    Relay outputs: Setpoint setting 0...99.9% of span
    Hysteresis 0...99.9% of span
    Updating time 100 ms
    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
    *of span = of the presently selected range

    Approvals

    EMC EN 61326-1
    LVD 2006/95/EC EN 61010-1
    PELV/SELV IEC 364-4-41 and EN 60742
    EAC TR-CU 020/2011 EN 61326-1