E2608-PID
Rev 05.03.2021
PID (photoionization detector) technology
The gas under investigation diffuses into the sensor’s testing cell, equipped with a source
of high energy UV light (10.6 eV Krypton lamp) and electrodes. Exposed to UV light, organic
molecules decompose to form ions, which are attracted by the electrodes. The measured
resulting current is proportional to the VOC concentration.
Operating conditions
The device should be used both in a non-hazardous area and in a basic electromagnetic
environment, where the latter is defined in EN 61326-1. Avoid strong mechanical shock and
vibrations. Avoid corrosive atmosphere and areas highly contaminated with dust, oil mist,
etc. Keep the instrument away from direct sunlight. A sudden temperature or humidity
change might affect the sensitivity of the sensor.
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