MTS Offers Explosion-Proof Position Sensors


MTS has released absolute linear-position sensors, which are now available as versions approved for installation in hazardous areas. The explosion-proof versions of the Temposonics R- and G-Series position sensors are suitable for use in a potentially explosive atmosphere containing flammable gases (groups IIA, IIB and IIC) and dusts.

An independent test body certified the sensors in compliance with the European ATEX directive 94/9/EC. With above-ground applications, the position sensors meet the requirements of instrument categories 3D (Zone 2) and 3G (Zone 22). When the sensors are operated in these zones, although the atmosphere presents the corresponding explosion risk, there is no hazard of inflammation.

The transducers are available with rod- or profile-shaped housings and analogue, CAN, SSI or Start/Stop interfaces. The maximum surface temperature is 135C in a gas-containing atmosphere and 100C if dust is present in the environment. Various protection types preclude the position sensors from being a source of inflammation when operating inside an explosion-hazarded atmosphere.

When installed in hazardous areas containing dust, the airtight sensor housing ensures that the operation remains safe. The IP67-rated housing protects the sensors against ingress of dust and water. As the formation of sparks during operation is prevented, the transducers can be operated securely in an atmosphere containing gas.

As a result of the ATEX approval, the field of application of the non-contact, wear-free Temposonics linear-position sensors is extended. Explosion-protected versions are now safe for measuring applications in hazardous areas, such as paper-, textile- and wood-processing industries, for power generation and energy supply, as well as in the paint industry and for gas turbines.

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