PRODUCT DATASHEET 973 Dew Point Mirror™ Portable Industrial Chilled Mirror Hygrometer Typical applications: Fundamental drift free humidity measurement Integral frost/dew point measuring head Internal sample pump Optimal Response Injection System for fast measurement Pressures up to 20 bar Integrated Stirling Cooling to expand measurement range Intuitive, easy to use LCD touch screen user interface • n-site calibration of O dew point sensors • reathing gas quality B • attery manufacturing B • ompressed air systems C • tandards laboratories S • alidation of production V and storage conditions • ryer perfor

Fundamental Measuring Technique The Model 973 Dew Point Mirror is a portable instrument equipped with an integral measuring head for both spot and continuous measurement of frost/dew point and temperature in air and gas. Based on the chilled mirror principle, the 973 provides fundamental, drift free and precise humidity measurement. Simple to Use and Minimal Maintenance The 973 has no need for either humidity sensor replacement or calibration adjustment. Unlike sensor-based systems, routine maintenance is conveniently limited to occasional mirror cleaning. Users can self-check instrument calibration...

Intuitive User Interface The 973 features a 5.7” LCD touch screen with a high contrast ratio and wide viewing angle for clear and easy readability. Using the on screen buttons and menus, you can easily configure each line of the instrument display for a variety of humidity, temperature and pressure parameters that may be viewed in units of your choice. A touch of a button changes any parameter between large font numeric and graph format with configurable axes so that the user can easily view measurement trends and stability without the need for external data acquisition. Optimum Response Injection...

Precise Temperature Measurement The 973 includes a 4-wire platinum resistance thermometer (PRT) for temperature measurement and to enable precise calculation of relative humidity. The temperature probe supplied is connected by cable to the 973 back panel and can be positioned by the user at the optimum measurement point within the application. In the event that direct measurement of the application temperature is not available, values can be manually input via a touch screen to allow the calculation of relative humidity at the process or application temperature. Integrated Pressure Measurement...

Specifications Specifications: Working range Calibrated range Measuring Ranges Frost/Dew point: Relative humidity Mixing ratio Sample pressure Accuracy Frost/Dew point (over calibrated range) Reproducibility Frost/Dew point Standard Features Digital I/O 5.7” LCD with color touch screen External temperature probe Mirror temperature sensor Mirror cooling Stainless Steel 316L (inlet and outlet) FEP outlet with sample pump Internal sample pump* Optimum Response Injection System Transport case Robust custom fit, foam lined, hard-shell case Power cable Operating instructions Calibration certificate...

Ordering information Description: Order code -60…20 °C FP/DP (incl. Ø2 x 100 mm PRT on 3 m cable and internal sample pump) -60…20 °C FP/DP (low cost version, 10bar maximum) -60…20 °C FP/DP (compressed air version, 20bar maximum) -75…20 °C FP/DP (integrated Stirling Cryocooler) Order code 10 bar pressure upgrade (no sample pump) 20 bar pressure upgrade (no sample pump) Two analog outputs, user programmable, -10...+10 V and 4...20 mA Internal sample pump (for 973E, 973CA, 973L) Additional water cooling 973 Additional 1 year warranty upgrade (max. 3 years) For a complete range of options and accessories,...

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