The APCS SI239 Signal Isolator v2 is widely used for signal conversion with PLCs, loop prevention, and noise filtering:
- High-voltage/high-current DC signal isolation up to 2000Vdc/10Adc
- True RMS conversion of AC signals for accurate PLC input
- Summing (adder) or differencing (subtractor) two process signals
- Min/max selection between redundant sensor signals
- Preventing ground and current loops in PLC interfacing
- Protecting instrumentation from dangerous field voltages
- Filtering common-mode noise on high-voltage signal circuits
- Loop-powering isolated transmitters without external supplies