Does the moisture in oil sensor need to be programmed or calibrated for
each specific oil or fluid?
No. Since the sensor directly measures water activity (aw),
an indication of the saturation level of the oil, the instrument doesn’t need
to be calibrated with any oil specific parameters. Each sensor comes calibrated from Vaisala
with a NIST traceable certificate included. For more information on this
subject, please see the article Understanding
water activity.