Chilled Mirror Dew Point Meter

Basic principle of cold mirror dew point meter when a certain volume of gas is cooled uniformly under a constant pressure the partial pressure of the gas and the moisture in the gas remains unchanged until the moisture in the gas reaches a saturated state and the temperature in this state is the dew point of the gas.

Chilled mirror dew point meter.

The dew star series of the multifunction and high accuracy provides wide applications which are for the calibration standard of humidity for the humidity management in a clean room and a dry room for the dew point measurement of the corrosion gas and etc. Chilled mirror dew point hygrometers dew star. The model 200m is a complete instrument for the measurement of atmospheric dewpoint ambient temperature relative humidity or other psychrometric variables. Our flagship chilled mirror hygrometer capable of measuring as low as 90 c dew point in a compact lightweight package.

Drift free a chilled mirror sensor will measure consistently every time. These self contained dew point hygrometers combine the inherent accuracy reliability and long term stability of optical chilled mirror technology with the convenience and ease of use of demanded by industry. Line up of 3 models to cover wide range of application. Michell s chilled mirror dew point meters are precision instruments for critical measurement and control applications.

Accuracy chilled mirror technology is accurate to 0 1 c 0 18 f s8000 and s4000 model. It employs the very reliable optical chilled mirror sensing technique which provides a primary measurement of dewpoint and is traceable to nist. Features highly precise chilled mirror dew point technology. The fundamental nature of this method means that chilled mirror instruments can be used as either extremely reliable and stable field instruments or as laboratory reference standards for the calibration of other devices.

Aw meters that use a chilled mirror typically claim an accuracy of 0 003 aw a figure which is argueable at best. The sensor head is optimised for fast response to low moisture levels and features the rrs system for high sensitivity and a dew point accuracy of 0 1 c. The optica hygrometer may be used with five fully interchangeable chilled mirror sensors to provide a measurement range from 112 f to 185 f 80 c to 85 c dew point with 0 36 f 0 2 c or better accuracy. In both cases this is close to the accuracy available from a good laboratory chilled mirror instrument.

Calibration the s8000 s4000 and optidew can be used to calibrate relative humidity and dew point instruments. The 473 shx dew point mirror is designed for dew point measurements in high temperature applications.