Skip to main content
Press Enter
Michell Instruments

HG1 Humidity Calibrator

Fully integrated system for the calibration of dew-point & RH sensors from 2 to 90% relative humidity, -30 to +20°C dp

This product is no longer available. Contact us at 800-567-8686 for alternative solutions.

Have questions? We're here to help!
Have questions? We're here to help!

A low-cost, easy to use, fully integrated system for the calibration of dew-point and relative humidity sensors from 2 to 90% relative humidity, -30 to +20°Cdp. The HG1 is configured to operate as a stand alone calibrator or to operate from a dry compressed air supply enabling easy on-site calibrations. The calibrator features an integrated chilled mirror reference instrument to enable the operator to perform calibrations that are traceable to national standards. The chamber cover can be customised to suit the transmitters and sensors being calibrated.

• Simple operation and maintenance
• Range 2 to 90% RH, -30 to +20°C dew point
• Built in precision chilled mirror reference instrument
• Reference accuracy ±0.2°Cdp
• Transportable to allow on-site calibrations

Calibration Range2 to 90% RH (-30 to +20°Cdp) @ 21°C ambient
Reference AccuracyTypically ±2% of reading (% relative humidity), 0.2°Cdp, 0.1°C ambient temperature
(with Optidew reference hygrometer)
CalibrationThrough traceable calibration of integrated Optidew reference hygrometer, to NPL and NIST
Operating Temperature+10 to +35°C ambient
Power90 to 120 V AC @ 60Hz or 220 to 260 V AC @ 50Hz
Calibration ChamberSteel with gasket seal, 120 x 120 x 250mm (h x w x d)
Overall DimensionsPainted aluminium case, 305 x 520 x 400mm (h x w x d)
Sample Flow Rate4 Nl/min for the sensor cell
Weight20kg
  • Thumbnail of document Data Sheet - HG1 Humidity Calibrator
    Download

    Data Sheet - HG1 Humidity Calibrator

    Download
  • Thumbnail of document Manual - HG1 Humidity Calibrator
    Download

    Manual - HG1 Humidity Calibrator

    Download

Request a Service Quote

Get a customized quote for calibration, validation, repair, or training services designed to keep your instruments accurate and compliant.
Learn more

Browse By Brands

Uncover the brands that set the standard for quality and dependability in every industry we serve.
Learn more