Galvanically isolating barrier
For use in hazardous areas, intrinsically safe transmitters require a barrier. It galvanically isolates the circuit between Ex and non-Ex areas. The isolated barrier model IS Barrier completes Wika‘s range of intrinsically safe products. It is suitable for installation in zone 2 and compatible with all corresponding transmitters from Wika.
The IS Barrier supplies sensors, depending on two- or four-wire system, via a power-supplying and non-power-supplying 0/4…20 mA input and also supports transmission of a Hart protocol. The current output can be operated actively or passively. The functional safety of the instrument is confirmed by the approval for SIL 2 applications.
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