Easidew Portable Hygrometer

The Easidew is a compact and easy to use portable hygrometer with fast response, integrated sampling system and traceability to National Standards. It has been designed to make in-field checks of the dew point in air and gases as simple and quick as possible.

Simply connect your sample gas to the Quick Connect fittings, turn on the instrument and it will instantly trend the dew point of the applied sample.

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  • Measurement Range: -100 to +20 º c dew point
  • Accuracy: ± 2 º C dew point
  • Operating Temperature: -20 to +50 º C
  • Operating Pressure: max. 30 Mpa
  • Power Supply: Four C-type re-chargeable cell
  • Output: 4-20 mA max. load resistance 400 ohms
  • Run time: 12 to 16 Hrs.
  • Max. Weight: 4 Kgs.
  • Protection: IP 68 with case closed ; IP 54 with case open
  • Compressed air dryers
  • Medical gases
  • Plastic molding dryers
  • Industrial gases
  • Instrument Air
  • Ozone generators

The Easidew Portable uses Impedance technology.

The operation of this sensor depends on the dielectric property of water molecules absorbing onto an active porous insulating layer sandwiched between two layers of conductive material deposited on a ceramic substrate. Water has a very high dielectric compared to the dielectric of the active layer and the background of the carrier gas so it can be detected easily. 

The active layer is very thin – less than one micron and the porous top conductor that allows water molecules to penetrate into the active layer is less than 0.1 micron thick. This allows the sensor to respond very rapidly to changes in the moisture surrounding it both when moisture decreases (drying) and increases in the sensor environment.