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Humidity Calibrator


It is essential that the funcitoning of an instrument is periodically checked against a reference Vaisala has developed the Vaisala humidity Calibrator HMK15 to make claibration and spot checking of humidity probes and transmitters easily and reliable.

It is:
  • Easy and reliable calibration of humidity probes and transmitters
  • Based on saturated salt solutions
  • Fast temperature equilibration
  • No external power required
  • Suitable for laboratory use and on-site checks
  • Chambers and transit covers make HMK15 easy to transport
  • Pre-measured certified salts available
  • Vaisala Service Centers offer accredited calibrations for humidity, temperature and barometric pressure

  • Technical Specs

    Model HMK15
    Accuracy (at 20ºC)
    of certified calibrated
    and ready dosed salt
    LiCl (11% rH): ±1.3%
    MgCl2 (33% rH): ±1.2%
    NaCl (75% rH): ±1.5%
    K2SO4 (97% rH): ±2.0%
    Included accessories
  • Two salt chambers, chamber covers and transit covers
  • Base plate
  • Vaisala calibrated thermometer
  • Measurement cup and mixing spoon

  • Data sheet

    CatalogueProduct Selection Form



    See also
    Humidity Calibrator
    It is essential that the funcitoning of an instrument is periodically checked against a reference Vaisala has developed the Vaisala humidity Calibrator HMK15 to make claibration and spot checking of .....


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