2231 Trip Amplifier

Brand: PR Electronics

  • AC/DC trip amplifier
  • 2 adjustable alarm limits
  • Galvanically isolated 3.75 kVAC
  • Front-programmable
  • 3-digit LED display
  • 24 VDC or universal supply
Features
  • The front-operated push buttons are used for programming the different standard functions.
  • A password can prevent access for changing parameters.
  • 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.

Specifications

Accuracy

  • Better than 0.1% of Selected Range

Approvals & Certifications

  • CE
  • DNV GL
  • EAC TR CU 020/2011
  • IEC 61140

Consumption

  • 1.5 W (2231D)
  • 2 W (2231P)
  • 500 VA - Maximum

Dimensions

  • 3.17" x 1.40" x 3.33" {80.5 x 35.5 x 84.5 mm (H x W x D)} - D is without Pins

Display

  • 3-Digit LED Display

Environmental Protection

  • IP50

Humidity

  • < 95% Relative Humidity

Hysteresis

  • 0 to 99.9% of Span

Input

  • 0-1 Arms - AC Current Input
  • 0-20 mA
  • 0 to 250 Vdc
  • 0 to 250 Vrms to AC Voltage Input

Isolation

  • 3.75 kVac at 250 Vac - Test/Working

Linearization

  • <± 0.35% of Span at 50 to 1000 Hz (AC Sine Wave Signals) - Linearity Error
  • < 0.1% of Span - Linearity Error

Mounting

  • DIN Rail Mounting

Programming

  • 3 Push Buttons

Relay Output

  • 2 A ac
  • 250 Vrms

Resistance

  • 1 ohm at 2 W for AC Current Input - Input Resistance
  • 50 ohms - Input Resistance
  • Nominal 5 MegaOhms for Voltage Input & AC Voltage Input - Input Resistance

Resolution

  • 16-bit - Signal Dynamics, Input

Response Time

  • 0.25 to 60 seconds (DC)
  • 0.75 to 60 seconds (AC)

Supply Voltage

  • 19.2-28.8 Vdc
  • 19.2-300 Vdc Universal
  • 21.6-253 Vac, 50/60 Hz - Universal

Temperature Effect

  • <± 0.01% of Span / °C (DC Signals) - Temperature Coefficient
  • <± 0.02% of Span / °C (AC Signals) - Temperature Coefficient

Temperature Range

  • 20° to 28° C (68° to 82.4° F) - Calibration Temperature
  • -20° to 60° C (-4° to 140° F)

Update Time

  • 100 milliseconds

  • 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.

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