Liebherr Sensors in use in Explosion-Protected Areas

Liebherr Sensors in use in Explosion-Protected Areas
The self-sufficient measuring device for precise water content/moisture determination in the running process guarantees the highest quality and safety in EX-protected production environments, the further processing and refinement of very many emulsions and bulk materials.

The PC software enables fast and accurate calibration of the measured sections.

Liebherr offers sensors for the following device protection categories:



EU-type examination certificate number: EPS 21 ATEX 1 140 X

DIN EN IEC 60079-0:2018, 60079-1:2014, EN 60079-11:2012, EN 60079-26:2015, EN 60079-31:2014

Gas EX-protection:

II 1/2 G Ex db/ia IIC T4 Ga/Gb

Dust EX-protection:

II 1/2 D Ex tb/ia IIIC T135°C Da/Db


Certificate number: IECEx EPS 21.0047X

IEC 60079-0:2017 Edition: 7.0, IEC 60079-1:2014-06 Edition: 7.0,

IEC 60079-11:2006 Edition: 5, IEC 60079-26:2014-10 Edition: 3.0,

IEC 60079-31:2013 Edition: 2

Gas EX-protection:

Ex db/ia IIC T4 Ga/Gb

Dust EX-protection:

Ex tb/ia IIIC T135°C Da/Db

The sensors are installed directly in pipes or in tanks.

The sensors are used, for example, in oils, crude oils, paints, lacquers, ethanol, solvents as well as in bulk materials under explosive conditions.

The WMS II sensors are permitted for the following markets:

In addition to their high precision and robustness, the measuring devices from Bad Schussenried are characterised by their reproducibility.

Once the system has been calibrated, further measuring points can be set up or devices renewed on this basis at any time without great effort. The plant thus always remains reliable, regardless of its previous term and age.

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We as one of more than 130 companies of the worldwide operating Liebherr-Group, manufacture and offer beside our more well-known big products for the construction field also Moisture and Water Content Measurement Systems. In this field we are working hand in hand with local dealers in each country. Our Moisture Measurement System Type LIEBHERR ...

Liebherr-Mischtechnik GmbH