Wireless position switches and sensors for explosive environments

Written by: Tom Austin-Morgan | Published:

Extreme, steute’s business division, has developed the Wireless Ex range, said to make the installation and operation of switchgear in explosive environments easier.

Products added to the Wireless Ex range include the Ex RF 96 wireless position switches in a slim rectangular design, and the Ex RF 96 ST wireless inductive sensor with M12 connector for Ex RF IS M 12, M 18 and M 30 wireless inductive sensors.

In both series the energy required to transmit the wireless protocol is provided by longlife batteries. This means that the switches need no cables and can be installed in machines and plants in Ex zones, even on components which are moving or difficult to access. The Ex-protected lithium battery can be changed inside Ex zones 1 and 21, making battery changes simpler and faster.

The electromechanical Ex position switches, Ex sensors and lithium battery are all ATEX and IECEx approved for operation in Ex zones 1 and 21. The wireless signal is low in energy, so it poses no risk of explosion, providing flexibility in the construction of explosion-protected plants. Typical applications for these Ex switching devices could be in machines and plants, handling units and conveying systems located in explosive areas.


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