Product news

Intrinsically Safe Liquid Level Sensors and Switches

Apr 17, 2023

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The switches are Hazardous Area approved and designed for use in demanding applications where direct contact with hydrocarbons, fuels, and flammable or explosive liquids is required.

Using innovative infrared technology and the principle of total internal reflection, these hazardous approved switches are suitable for a wide range of applications, including presence or absence of any liquid, petrochemicals/oil and gas, heavy-duty automotive, leak detection, hydraulic reservoirs, tank/container level-control, and downstream analyzer protection. The switches offer an almost instantaneous response time and switch point repeatability of +/- 1 mm, providing highly accurate readings, and require no calibration.
These liquid level switches are highly robust and resistant to chemical attack, with an operating temperature range between -30 and +80°C (-22…+176°F). The switches are housed in 316 stainless steel and come with a choice of sensing tip materials, making them ideal for use in challenging environments.
ATEX, UKCA, and IECEx certified, these switches offer metric and imperial process connection options with NAMUR output.
The PST range of intrinsically safe optical liquid level switches offer exceptional reliability and accuracy for use in challenging environments and are designed and certified to meet the highest industry standards.

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Max-Planck-Str. 14

61381 Friedrichsdorf


+49 6172 5917-0

Hall 1 Booth 1-307

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