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DP/FP ranges: -40℃ to +90℃, (0.55%~100%RH @20℃)
DP/FP accuracy: ±0.15℃ (calibration: -15℃ to +20℃)
DP/FP resolution: 0.01℃
DP/FP reproducibility error: ±0.05℃
Temperature range: -45℃ to +100℃
Temperature accuracy: ±0.05℃ (calibration: -10℃~60℃)
Temperature resolution: 0.01℃
Temperature reproducibility error: ±0.05℃
Working environment: -20℃ to +60℃, 10%RH to 90%RH, 101.325kPa (custom atm. is option)
Mirror temperature measurement: 4 wire PT100 1/3B
Probe material: SUS304 stainless steel
Cable material: Polyurethane material with shielding layer
Response time: Max cooling 0.8℃/s, + 15s balance time
Sampling airflow rate: 0.1~1NL/min (The volume of ventilation is inversely proportional to the dew point)
Cooling type: Peltier cooling
Output signal: Modbus RTU, USB
Power supply: 100-240V AC 35W or USB Type-C 5V/2A 10W
Ingress protection grade: IP54
Dimension: 160mm (W) x 165mm (D) x 85mm (H)
Weight: 4kg inlcudes standard accessories
SCOPE OF DELIVERY
BL783 Precision chilled mirror hygrometer
Two Stage Chilled Mirror Dew Point Sensor
Temperature sensor
2 meters dew point sensor connection cable
2 meters temperature sensor connection cable
USB2.0 into USB type-C cable
Standard AC Power cord
User manual
Factory calibration report
Carrying case
DATASHEET
DESCRIPTION
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
