Valve position monitors reduce field wiring 50%

K Controls has obtained ATEX gas and dust certification for EExia intrinsically safe switchboxes, switch terminal boxes and switch solenoid control centres that can reduce field wiring by 50%

K Controls has obtained ATEX gas and dust certification for EExia intrinsically safe switchboxes, switch terminal boxes and switch solenoid control centres that can reduce field wiring by 50%.

Special solid state proximity sensors, fitted with an internal diode, permit two signals to be monitored through one dual lead via a 2:1 mode of operation.

This new sensor also includes LED switch status indication.

This means that the end user can see whether or not the sensor has been activated by the target.

This is especially helpful during commissioning and fault finding as frequent trips back to the panel can be avoided.

K Controls takes a pair of wires from each proximity sensor and configures them via the terminal strip inside the enclosure to permit client connection to an appropriate interfacing device via a single, two core cable.

Typical Interfacing devices are galvanically isolated safety barriers and fieldbus valve coupler units.

The benefits of this approach are particularly significant when using fieldbus valve couplers as the number of inputs per coupler can typically be increased to 8 thereby saving the number of couplers needed per installation.

Up to four 007 switchboxes or four 007C switch solenoid control centres can therefore be connected to each fieldbus valve coupler.

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