WL 201 Fundamentals Of Humidity Measurement Didactic Equipment Vocational Training Equipment Thermal Lab Equipment
Climatic chamber with adjustable humidity; comparison of four measuring methods Features - different measuring methods for measuring humidity - climatic chamber with adjustable humidity and transparent door Learning objectives/experiments - measuring methods for air humidity measurement -- psychrometric humidity measurement -- hygrometric humidity measurement -- capacitive humidity measurement - characteristic variables to describe air humidity - changes of the state of humid air in the h-x diagram - determination of the relative air humidity with -- psychrometer -- hair hygrometer -- hygrometer with synthetic fibre -- capacitive humidity sensor - design and operation of the instruments - comparison of the instruments Specification [1] different measuring methods for measuring humidity [2] climatic chamber with adjustable humidity and transparent door [3] humidification via ultrasonic atomiser [4] dehumidification via Peltier cooling element [5] fan for air recirculation [6] 2 mechanical instruments: psychrometer, hair hygrometer [7] 2 electronic instruments: capacitive sensor, hygrometer with synthetic fibre and combined temperature sensor Technical data Humidifier - ultrasonic atomiser - power consumption: 21,6W - low water cut-off Dehumidifier - Peltier element -- cooling capacity: 56,6W (50°C ambient temperature) -- cooling surface: 1600mm2 Hair hygrometer with deflective needle - measuring range: 0...100% r. h. Hygrometer with synthetic fibre - output voltage: 0...10V - measuring ranges: 0...100% r. h. / -30...80°C Capacitive sensor with digital display - output voltage: 0...10V - measuring range: 1...100% r. h. Psychrometer with thermometer - measuring range: -10...60°C, graduation: 0,5°C 230V, 50Hz, 1 phase 120V, 60Hz, 1 phase; 230V, 60Hz, 1 phase UL/CSA optional LxWxH: 1400x800x1630mm Weight: approx. 110kg
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