Optical Chill Mirror Hygrometer

The EdgeTech Model DewTrak II dew point / humidity transmitter is an optical chill mirror hygrometer designed to continuously measure the moisture content in gases. The instrument is powered by 12Vdc. The DewTrak II uses the chilled mirror dew point temperature condensation principle to determine the water vapor concentration in gas mixtures, and a platinum resistance thermometer to accurately measure that temperature. Outputs include 4 to 20mA, 0 to 5 Vdc, or 0-10Vdc and an RS232 serial port as well as electrically isolated relay contacts.

Configuration Options

Various housings are available for most applications which include:

• Wall Mount

• Duct Mount

• Pipe Mount

• Remote Type

Features

• 4 wire PRT measurement for Dew Point and AT (optional)

• ±0.2°C Accuracy for both Dew Point and Temperature

• Long term stability and repeatability

• RS232, bi-directional, Serial Output

• Electronics housed in IP65 enclosure (Wall Mount)

• Aluminum housing for other configurations

• 2 analog outputs (4-20mA / 0-5Vdc to 0-10Vdc selectable)

Options

• AT - Air Temperature

• RD - 2 line LCD display (graphical display) Three    parameter displayed at one time

• AC - AC universal supply 85 to 230Vac

• SC1 - Flow through sample chamber

• HPO - High Pressure (20 bar)