How does lubricating oil affect the Vaisala DRYCAP® dewpoint sensor?
Lubricating oil commonly found in compressed air lines has no measurable affect on the DRYCAP® sensor’s performance or service life. The only noticeable affect is a potential delay in response time due to a thin layer of oil forming a film on the surface of the sensor. This film slows the migration of water molecules from the air to the sensor. Note: in rare occasions, some lubricating oils can generate corrosive by-products through chemical reactions that may have a negative impact on the sensor’s performance.
