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SI231 Signal Isolator v3

The APCS SI231 Signal Isolator at Hinco Instruments is a loop-powered converter for common process signals with configurable inputs (4-20mA, 0-10V, etc.), 2000Vrms isolation, span/zero adjustments, and field-selectable response time.

Find the APCS SI231 Signal Isolator v3 at Hinco Instruments. The SI231 is an isolated loop-powered signal converter for common process signals, and features field configurable inputs 4-20mA, 0-1mA, 0-10mA, 0-20mA, 0-1V, 0-2V, 0-5V, 1-5V & 0-10V, 2-wire loop power or 3 wire output, 2000Vrms isolation, field configurable response time, front adjustments for span and zero.

Common applications include signal conversion for input to PLC’s, prevention of ground and current loops, protection from dangerous floating voltages, & filter of common mode noise.

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Specifications

Input Range 4-20mA, 0-1/10/20mA, 0-1/2/5/10V, 1-5V (field configurable)
Power/Output 2-wire loop-powered or 3-wire output
Isolation 2000V rms
Response Time Field-configurable
Calibration Front zero and span adjustment
Configuration Field configurable input range
Mounting DIN-rail

Applications

Common applications for the APCS SI231 Signal Isolator v3 include:

  • Isolating field signals prior to PLC analogue input cards
  • Preventing ground loops between separately earthed instruments
  • Protecting control equipment from dangerous floating voltages
  • Filtering common-mode noise on long instrument cable runs
  • Converting between voltage and current process signal standards
  • Loop-powering isolated transmitters without an external supply
  • Field re-ranging via configurable input selection during commissioning
  • Providing signal isolation for SCADA/DCS analogue input protection

Documents

Hinco Instruments is your authorised APCS distributor in Perth, WA. Contact us for pricing, availability, and technical support.

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