Explosion proof universal programmable converter and transmitter FMS Force Measuring Systems AG

● ExMGZ 100/200.ATEX
ExMGZ 100 / 200.ATEX Intrinsically Safe Barrier The ExMGZ 100/200.ATEX intrinsically safe barrier is used for applications in intrinsically safe or explosion proof environments classified as II(2)GD [EEx ib] IIB / IIC. It is designed for single or double channel tension measurement and can be used with any FMS amplifier, controller, and force sensor. The ExMGZ 100 / 200.ATEX units
are DIN rail mountable, utilize screw terminal connections and are easy to install between the electronic unit in an unprotected area and a force sensor in a protected area.

● Functional description
The ExMGZ 100/200.ATEX intrinsically safe barrier utilizes a zener limiter on the force sensor side. It controls the voltage to the force sensor while preventing over voltage. A zener barrier is provided for each channel on the intrinsically safe side. Therefore the explosion proof area remains safe from hazardous voltage levels while still allowing the tension measurement or control to perform in the process. A control circuit ensures that the voltage drop of the zener barrier is compensated and it is guaranteed that the full excitation voltage is provided to the force sensors.

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