Switchig is accomplished by the angular movement of the switch magnet being used to operate “push-rods”.
These rods bear on contact blades and break one set of contacts whilst allowing the other set to make. The benefit of this arrangement is that contact force is indepdndent of the magnet.

A switch mechanism is mounted inside the enclosure adjacent to the pressure tube.

Switching is achieved with the unique Mobrey‘three-magnet’ system, giving snap-action ‘latch-on’ switching.

The MSP100 Sonapulse is designed for a wide range of applications fromlevel and contents measurement to flow measurement in open channels where the requirement is a processed 4-20mA output proportional to the measured value.

With intrinsically safe models for Zone O applications, the MSP100 is ideally suited where performance and safety are required.

The MSP100 is also a ‘SMART’ transmitter, having all the benefits of measurement functions and digital signal processing in one self- contained unit.

Additional benefits include remote communications for interrogation, programming and monitoring of field instruments. Changing of operational parameters in order to accommodate different or changing site conditions is easily achieved using the Hand Held Communicator, which can be connected either directly to the MSP100 or at any point in the 2-wire loop, making data access and parameter changes simple and convenient.
A CENELEC version of the communicator is available for use in the hazardous area.