Combined oil moisture and temperature sensor.

Combined oil moisture and temperature sensor.

Ensure oil remains dry!

  • Continuous condition monitoring of oils.
  • Two analogue outputs (4...20 mA) for relative humidity and temperature.
  • Wide input voltage range 9...33 V DC.
  • Medium temperature -20...100 °C.
  • GG 3/4" process connection for direct mounting.
Water is generally not wanted in hydraulic liquids and lubricants. High concentrations of water can seriously affect operation or even cause damage.
Measuring principle
The sensor measures the relative humidity in the oil in the range of 0...100 % by means of a capacitive measuring element. At 0 % the oil is absolutely without any water content. At 100 %, however, the medium is completely saturated. No more water is dissolved and is then present as free water. Besides the relative humidity the sensor also outputs the medium temperature as an analogue signal.

M12 connector · 8-pole

LDH100 - Oil humidity sensor, Measuring range, Medium temperature (T), -20...120 °C, Rel. humidity (φ), 2 analogue outputs 4...20 mA, M12 connector

Current bulletin