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trip amplifier 2231 pr electronics

Trip Amplifier

Techno Supply  »  Produtos  »  PR Electronics  »  Trip Amplifier
Trip Amplifier
Trip Amplifier
Principais características

AC/DC trip amplifier
2 adjustable alarm limits
Galvanically isolated 3.75 kVAC
3-digit LED display
24 VDC or universal supply


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

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.


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

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


Isolation voltage

Isolation voltage, test / working 3.75 kVAC / 250 VAC


Response time

Response time (programmable) 0.25...60 s (DC) 0.75...60 s (AC)

Internal consumption 1.5 W (2231D) 2 W (2231P)

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

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



EMC 2004/108/EC

LVD 2006/95/EC

PELV/SELV IEC 364-4-41 and EN 60742

EAC TR-CU 020/2011

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19. 3403 2300
Av. Santo Estevão, 509
Vila Rezende - 13405-249

Piracicaba, SP - Brasil
Techno Supply Importação e Exportação Ltda.
CNPJ 05.505.756/0001-06