Chilled mirror hygrometer BL783 series

laboratorydigitalportable

Chilled mirror hygrometry is a precise technique for determining the water vapor content is gases by directly measuring dew point or frost temperatures. Using this technique a metal mirror is cooled until it reaches a temperature at which a thin layer of condensation begins to form on it. The dew layer is detected optically, and the mirror is held at that temperature. The mirror temperature, measures with a PRT, is an accurate indicator of the dew or frost point. FEATURES • Dew point measure range -40℃ to +90℃ • Accuracy of dew point is ±0.15 ℃ • Dynamic balance control for contamination • Simultaneously measures dew point, temperature, relative humidity, absolute humidity, specific humidity, enthalpy, vapor pressure and volume ratio (ppmV). • Real time data logging and display curve • MAX value and MIN value are recorded • AC or alternative DC power supply • MODBUS RTU and USB communication • 4 Inch touch screen • External temperature sensor port • Force frost function at low dew points APPLICATION • Reference standard in calibration lab • Inlet air measurement for engine testing • Heating ventilation and air conditioning test • Environment monitoring in clean room • Humidity control for metallurgical processes • Coating process monitoring in pharmacy • Reference humidity instruments for climatic and environmental chambers