BL790 Low Humidity Calibration System (-100℃ to 20℃ dp)

Chilled mirror dew point meter 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.

The BL790 series solution provides ultra- dry machines capable of generating gas with a dew point below -90°C to supply dry gas, enabling arbitrary adjustment of dew points within the range of -90°C to 20°C, and fully automatic rapid control can be achieved. The complete system consists of BL789 chilled mirror hygrometer, BL793 dew point generator, BL792 dry gas generator, silent oil-free air compressor, cabinet, pipes and manifold.  

FEATURES

• Modular design, easy to operate

• Quick response time and fast generate rate

• High gas generation production

• Excellent stability

APPLICATION

• Humidity standards in calibration labs

• Humidity measurement in industries.

Model BL789 Chilled Mirror Hygrometer

• BL789-60: (-60 to +20) ℃, ±0.1℃ dp

• BL789-80: (-80 to +20) ℃, ±0.1℃ dp

• BL789-90: (-90 to +20) ℃, ±0.1℃ dp

Model BL792 Dry Gas Generator

• Dry gas minimum dew point: -95℃ dp

• Inlet gas pressure: ≥0.8MPa

• Outlet gas pressure: 0.3MPa (Adjustable)

• Operating temperature: 0℃ to +50℃

• Storage temperature: -40℃ to +50℃

• Power supply:100-240VAC

• Power consume: 40W

• Dimension: W485mm x D500mm x H266mm

• Weight: 22kg

• Principle: Pressure swing adsorption for desiccants

Model BL793 Dew Point Generator

• Working principle: Mass flow control

• Dew point range: -65℃ to 15℃(ambient minus 5℃)

• Stability: ≤ ±0.1℃ DP (30 min)

• Response: ≤ 1min

• Hysteresis: None

• Adjustable flow rate: 0-10L/min

• Outlet ports: 3

• Dry gas minimum dew point: -95℃ dp

• Inlet gas pressure: ≥0.8MPa

• Outlet gas pressure: 0.3MPa (Adjustable)

• Gas in/out connector: 1/4 inch Swagelok tube

• Operating temperature: 0℃ to +50℃

• Storage temperature: -40℃ to +50℃

• Power supply:100-240VAC

• Power consume: 40W

• Dimension: W800mm x D700mm x H1700mm

• Weight: 120 kg

SCOPE OF DELIVERY

• BL789 Chilled Mirror Hygrometer

• BL792 Dry gas generator

• BL793 Dew point generator

• Integrated cabinet with pipes

• 5 ways manifold

OPTIONAL

• ISO17025 accredited calibration certificate

• Silent oil-free air compressor

  
  

ORDERING MODEL #

• BL790-60

• BL790-80

• BL790-90