Humidity reference cell set 1 (32,9% RH and 75,4% RH)

Product no.: SHOP REFZ-M20-SET1

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High quality humidity reference cell set for calibration and/or accuracy control of humidity probes and measuring systems at 32,9 %RH and 75 %RH.

Weight: 0.5616 kg
1 pc 190,51 €
Delivery will be effected within 2-3 working days with receipt of payment.
Reference cell set
Measuring range
32.9% RH and 75.4% RH at 22°C, temperature dependance see documentation
Application temperature
-20...+40 °C
Cell: Ø40 x H105 mm (with lid), Thermobox: Ø170 x H130 mm
Scope of delivery
Two reference cells (magnesium chloride and natrium chloride), cylindrical thermobox, Clamp connection adapter M20 for Ø10...14 mm and documentation on CD.
0.5616 kg

The humidity reference cells consist of high purity saturated salt solutions (purity degree “per analysis”). The salt brine is separated from the measurement chamber with a special hydrophobe, but gas permeable diaphragm membrane. It is so protected from any contamination. In the thermodynamic equilibrium, the salt solution develops in the measurement chamber a defined and highly accurate humidity state which depends only on the temperature and the salt composition.

The transparent acryl housing allows control at every time the saturation state of the salt solution. The present set contains two humidity reference cells with saturated salt solutions of magnesium chloride (32,9 %RH) and potassium chloride (75,4 %RH). The two reference cells are packed in a thermobox which helps to guarantee a stable thermodynamic state (temperature stabilisation) of the salt brine and measurement chamber during the measurement. Included in the delivery scope is also a M20 screwing Adaptor for Humidity probe with outer diameter 10 mm to 14 mm.


Areas of application:

  • Calibration and calibration control of humidity probes and measuring devices,
  • Humidity defined storage of specimens and samples,
  • Humidification cells for R&D

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