DEWRanger-DUO Portable Hygrometer
The DEWRanger DUO hygrometer is a fully portable instrument for making spot checks of the absolute moisture content of industrial gases. It can also be used for longer term measurements. It is powered either from its internal re-chargeable battery or from a mains supply of 90-250Vac. The instrument consists of a STORK Instruments DEWCom dewpoint transmitter which is fitted in a special Desiccant Head. These are installed in a robust Peli industrial case.
Routine maintenance of the STORK DEWRanger hygrometer is confined to regular re-calibrations. This work can only be done by exposure of the moisture sensor to sample gases of known moisture content.
The frequency of re-calibrations required in order to maintain the performance of the hygrometer is primarily dependent on the composition of the gas to which the sensor is exposed: i.e. content of liquid and particulate contaminants, corrosive elements, etc. In most applications, annual re-calibration ensures that the stated accuracy of the hygrometer is maintained.
The Dewcom sensor is fully interchangeable. Maintaining the measurement accuracy of the Dewranger DUO hygrometer in is simply a case of exchanging the sensor for a freshly calibrated one, which will be supplied with a traceable certificate of calibration.
Dewpoint Detector: Stork Instruments advanced bi-ceramic Dewpoint Transmitter
-100°C to +20°C, -148°F to +68°F, 0 to 9999 ppmv,
+/- 2°Cdpmax 1-5 l/min
0°C to +40°C, 0 to 90%RH
50mm x 38mm graphicanalog 4-20 mA
Peli 270 x 246 x 174mmIP67