Humidity Calibrator
The HG-1 is a high precision, portable humidity calibrator. Using Michell's Optidew Cooled Mirror instrument as the reference measuring instrument, humidity can be controlled across the range 2 to 95% RH (at room ambient operating temperature). The HG-1 is configured to operate as a stand alone calibrator or to operate from a dry compressed air supply enabling easy on-site calibrations. The front panel mounted flow meters enable the mixing ratio of a dry and wet air stream to generate the required humidity. The chamber cover can be customised to suit the transmitters and sensors being calibrated.

Caractéristiques produits

  • Totally portable
  • Easy to use
  • Range 2 to 90% RH, -30 to +20°C dew point
  • Traceable to national standards
  • Integrated cooled mirror reference hygrometer
  • Accuracy ±0.2°C dew point

Spécifications techniques

Calibration Range 2 to 90% RH at room ambient temperature
(-30 to +20 °Cdp)
Accuracy Typically ±2% of reading (% relative humidity)
0.2 °Cdp, 0.1 °C ambient temperature (with Optidew reference hygrometer)
Calibration Through certified calibration of integrated traceability
Optidew reference hygrometer, to NPL and NIST
Operating Temperature +10 to +35°C ambient
(Note - temperature control of the measurement chamber can be specified as an option)
Power Supply 110 V or 240 V, 50-60 Hz, 60 VA
Calibration Chamber Steel with gasket seal, 120 x 120 x 250mm (w x h x d)
Overall Dimensions Painted aluminium case, 520 x 320 x 400mm (w x h x d)
Weight 20kg approx



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