BalunTech BL783 Chilled Mirror Hygrometer (-40℃ - +90℃; ±0.15℃)

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