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APCS SI282 Signal Isolator

APCS SI282 Signal Isolator with 3-way galvanic isolation, selectable input ranges, auxiliary transmitter supply, and front zero/span calibration for precise signal conversion.

The APCS SI282 Signal Isolator provides true 3-way galvanic isolation up to 2 kV rms, ensuring safe and reliable signal conversion in industrial applications. It delivers an isolated unipolar output signal from a wide range of input types, including process, mV, bipolar, and bipolar mV signals. Range changes are simple with coding plugs, requiring no special tools. The SI282 also includes a 20 VDC/22 mA auxiliary supply to power loop transmitters, reducing the need for external supplies. Final calibration is easy with front-access zero and span trim adjustments. With a rugged DIN-rail mount ABS housing, surge protection, and configurable filter response times, the SI282 offers flexibility, safety, and long-term accuracy. Find the APCS SI282 Signal Isolator at Hinco, Perth, WA for dependable isolation and signal conversion.

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Specifications

Isolation 3-way galvanic isolation, up to 2000V rms
Input Types Process, mV, bipolar, and bipolar mV signals
Output Isolated unipolar DC output
Range Selection Coding plugs, no special tools required
Auxiliary Supply 20VDC / 22mA, for powering loop transmitters
Calibration Front-access zero and span trim
Filter Response Configurable filter response time
Protection Surge protection
Mounting 35mm DIN-rail, rugged ABS housing

Applications

The APCS SI282 Signal Isolator provides safe, reliable signal conversion for:

  • Isolating process signals between PLC/SCADA input cards and field transmitters
  • Powering loop-powered transmitters directly from the auxiliary 20VDC supply
  • Converting bipolar or mV sensor signals to a standard unipolar process signal
  • Breaking ground loops between separately earthed instruments
  • Protecting control room equipment from field-side surge and transient events
  • Filtering common-mode noise on long instrument cable runs
  • Re-ranging inputs on-site via coding plugs without extra calibration tools
  • Interfacing legacy mV/bipolar instrumentation with modern 4-20mA control systems

Documents

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

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