Dew-point and humidity meters

Over time, a humidity meter is subject to fluctuations in its accuracy of measurement. This period depends on the way in which it is used. To be able to guarantee the accuracy, and to maintain it within acceptable limits, the device must be calibrated at regular intervals. For certain specific applications in the pharmaceutical industry, the calibration must be carried out every 3 months, as measuring devices are subject to the validation process, and even the smallest fluctuations can have a large influence on the application. In normal environments, one calibration per year is sufficient. Expert calibration of the devices is necessary.

Humidity calibrator, model S-503

  • Features:
  • For calibration of humidity sensors, transmitters, and portable devices
  • Generates stable humidity values between 10 and 90 % RH
  • Compact and easy to transport
  • Rapid stabilization of the test chamber
  • Optional: independent traceable reference hygrometer
  • Several sensors can be calibrated simultaneously

Humidity and temperature calibrator, model S-904

  • Features:
  • For calibration of rF humidity sensors and transmitters
  • Generates temperatures between 10 and 50 °C with a precision of 0.1 °C, and a humidity of 10 to 90 % RH
  • Precise and repeatable calibrations are possible
  • Generates humidity and temperature simultaneously
  • Excellent stability
  • Compact and easy to transport
  • Optional: built-in data recorder, logs the built-in reference sensor and the sensors to be calibrated
  • Suitable for sensors with diameters between 5 and 25 mm



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