Hydraulic & mineral oil filtration, Quality control and instrumentation, water sensor

Filtertechnik offer 2 types of water sensors for determining the quantity of water in oils, fuels and biofuels. Our RH sensors (Relative humidity) give the percent saturation of a given fluid. 100% saturation is the point at which suspended water becomes harmful free water. These sensors are lower cost and are very useful for hydraulic applications. Outputs are scaled and 4-20mA.

Our Genuine PPM sensors are highly accurate parts per million (PPM) sensors, they are particularly useful for transformer oils and diesel fuels or biofuel. The sensors are calibrated to a Karl Fischer device and fully temperature compensated. To understand the different relationships between %RH and PPM please see below (Alison – pls insert this graph):