Michell Instruments dewpoint transmitter

The Michell Instruments dewpoint transmitter gives continuous, online measurements of dewpoint of the compressed air that supplies the braking systems and doors on train carriages.

The transmitter has a heavy-duty M12 electrical connector and is calibrated to measure extreme ranges of -60 to +60°C dewpoint. The product uses a polymer moisture sensor to provide reliable readings of dewpoint, allowing for operators to respond quickly to any changes in efficiency in the pneumatic air dryer system. This is needed to ensure safety on the tracks as excess moisture during cold weather can lead to freezing or jamming of the braking system or automatic doors.

The product also helps to reduce the cost of maintenance as longer-term moisture in the distribution network and pneumatic components can lead to corrosion.

The transmitter has EMC/RFI approval to rail standard EN50121-3-2 and shock/vibration approval to rail standard IEC16373:1999-01.