Digital immersion probe for determining moisture in oil

The MOP301 immersion probe from E+E Elektronik precisely measures the moisture in transformer, lubrication or hydraulic oils, and diesel fuel. It is employed for preventive maintenance of equipment and machinery. The stainless-steel probe may be used in oils up to 120C (248F) and 20 bar pressure. The measured data for water activity, temperature and absolute water content are available through the RS485 interface with Modbus RTU protocol.

The humidity sensing elements used in the probe are characterised by their long-term stability and resistance to contamination. They form the basis for high-precision and reliable humidity and temperature measurement.

The immersion probe is impressive mechanically with a tough stainless-steel enclosure with protection class IP66, an oil-resistant cable and a moulded M12 connector. It can be employed in a temperature range of -40C to 120C (-40...248F) and at up to 20 bar pressure.

Various probe and cable lengths and the slim design enable particularly flexible installation of the device. The immersion depth can be exactly set and changed if required, thanks to the practical slide fitting. The probe can be installed and removed without interrupting the process and under pressure utilising an optional ball valve.

The device is compatible with the Sigma 05 sensor hub by E+E Elektronik. The probe can be plugged into the host device based on the plug-and-play principle and, therefore, extended to a sensor unit with analogue outputs and an optional display.