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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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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.

Ficha técnica y manuales


Ficha técnica

Manuales

Manuales en ruso

Documentación complementaria


Declaración UE de conformidad

Nota de seguridad


Nota de seguridad

Homologaciones y certificados


Certificado marina DNV

Declaración EAC

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

Approvals

DNV Marine TAA0000101

 

Need support to select the right product for your application?

Our sales engineers are ready to help specify the right device to meet your needs.

 

Reach out by phone to get in touch with us straight away – or use the contact form or quick quote function to send your RFQ directly from the website. You’ll get a response within 24 hours on normal business days.

 

You can expect to get a confirmed delivery date via email within 2 days after we have received your order.

 

As soon as your package leaves our warehouse, you’ll receive tracking details via email. And if you have any questions along the way we’re just a phone call or email away.

 

State-of-the-art manufacturing

State-of-the-art manufacturing

Our 8,500 sqm integrated and automated manufacturing campus in Denmark covers the entire value-chain from design and development to manufacturing. It allows us to design and optimize for testing and manufacturing thereby constantly driving quality up and costs down.

 

Dedicated Presales / Aftersales

Dedicated Presale / Aftersales
Our more than 80 dedicated sales engineers can help specify the right device for your application. Backed by our 9 subsidiaries and more than 40 dedicated partners, we are directly accessible in more than 40 countries around the world.

 

Find a PR location close to you

 

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
Our devices are intuitive and simple to configure. Once installed they visualize rich diagnostics data, allowing the operator to plan preventative maintenance, maximizing process up-time.

 

 

Smart products

Smart products
Many of our devices are designed to accommodate current and future communication enablers, providing the operator with multifunctional capabilities that extends into the future.

 

Check out our range of communication interfaces

 

Smart products

 

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