Intrinsically Safe Position Sensors

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30th October 2009

Source: MTS Sensor Technologie GmbH

The new, intrinsically safe Temposonics IS position sensors by MTS assure a safe working environment where ignitable mixtures of materials occur. Developed for the linear position or level measurement in hazardous areas they meet all the requirements of equipment group category II. Along with the corresponding certified safety barriers they can be used directly in hazardous areas of instrument category 1/2G and 2D and in order to that can even be mounted to zone 0.

The IS sensors come along with the dimensions of the product range’s standard transducers. Thus the advantages of absolute, non-contact position measurement are now also available without any additional housing for an environment with high explosion risk. Voltage and current supply is limited so that no ignitable energy arises and potential spark formation cannot trigger any explosion. The surface temperature of the sensors will not rise above 135°C, which makes them applicable almost everywhere.

The intrinsically safe sensors by MTS offer a direct analogue current or voltage interface and additionally feature a signal output inside the sensor head. At measuring ranges of 50-2500 mm they work with an infinite resolution, a repeatability better ± 0.05 mm and 1 ms cycle time. Customer specific programming of set points is possible. The IS sensors are available as profile version for external mounting to the motion axis, as rod model for in-cylinder installation or together with a float as level sensor.

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