083E Relative Humidity Sensor

This model is also available with a mounted temperature sensor, and can be used with a variety of radiation shields.

Operation

The 083E Relative Humidity Sensor measures variance in the capacitance change of a one micron thick dielectric polymer layer.

This film absorbs water molecules through a metal electrode, and causes capacitance change proportional to relative humidity. The thin polymer layer reacts very quickly, providing up to 90% of the final value of relative humidity in fewer than five seconds. The sensor’s response is essentially linear, with small hysteresis, and negligible temperature dependence.

Construction

• The sensor is mounted on a small probe, which measures, records and displays humidity levels
• Because the sensor measures only ambient humidity, in most settings temperature compensation is unnecessary
• The probe body is water tight and made from corrosion resistant aluminum
• Immersion of the sensor element in water does not adversely affect the calibration

Product Specifications