9167 series Ex i isolating repeaters operate without auxiliary power and can be used for the intrinsically safe operation of control valves, I/P transducers, analogue indicators and fire or gas detectors, for example. They have one or two channels and emit HART signals (0/4 to 20 mA) from the analogue output. They transmit superimposed HART communication signals in both directions.
- Compact, loop-powered one- and two- channel Ex i output isolating repeater
- suitable for fire and gas detectors
- can be used up to SIL 3 (IEC 61508)