Sensors to detect moisture in-situ in Powder&Bulks and emulsions

Litronic FMS P78 planar sensor
Small, fine, excellent: The Liebherr P78 sensor in conjunction with the Liebherr FMS moisture measuring installation has become indispensable for many industrial processes. The moisture measuring installation was invented in 1985 at the Bad Schussenried factory. Measurement by the Liebherr sensor system is based on the physical principle of capacitance determination in the high-frequency stray field. In addition to their high precision and robustness, the measuring devices from Bad Schussenried are characterised by their reproducibility.

Once the sensor 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.

Increased temperature ranges: For use at increased material temperatures, we offer our P78-T sensor, which is designed for max. 90 °C material temperature.

Salt and acid: For highly aggressive substances, we use the high-grade material 1.4462 for the P78-H sensors.

High wear: The Liebherr P78-V sensor is ideally suited for abrasive materials thanks to its 10 mm thick washer.

Flange adaptations: For sensor installations in pipelines from DN150 and tank installations, we offer our DN80 flange. This is also available as a salt- and acid-resistant version.

sliding shoe slides: A proven method of installing the sensor on the material using the carriage. Stainless steel, Hardox 400, Vaudit, acid and salt resistant or ceramic lined versions are available.

Liebherr offers certified sensors for determining the moisture in bulk materials for the potentially explosive atmospheres Zone 21 and 22.

Bulk solids and materials such as coal, flour, wood, cocoa, coffee, sugar, starch and cellulose as well as magnesium and aluminium can be determined in-situ (real time) for the moisture value under particularly explosive conditions in conjunction with our proven FMS II evaluation and transfer unit. The sensors find their place in mixers, mills, dryers, conveyor belts, extraction points and the like.

Send the measured values directly and in-situ to your higher-level control system.

The self-sufficient measuring device for precise 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 bulk materials.

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

Liebherr offers sensors for the following equipment protection categories:

ATEX
Dust EX protection:
II 2D Ex tb IIIC T85°C Db
II 3D Ex tc IIIC T85°C Dc

IECEx
Dust EX protection:
Ex tb IIIC T85°C Db
Ex tc IIIC T85°C Dc

https://www.liebherr.com/en/deu/products/construction-machines/concrete-technology/measurement/p78-sensor/litronic-fms-planar-sensor-p78.html