AFH-G
AFH-G 07/02
Seite 9
9. Order Codes
10. Maintence and Instruction for use
The measuring element is maintenance free when the surrounding air is clean.
Agents that are corrosive and contain solvents, depending upon the type and
concentration of the agent, can result in faulty measurements and cause the
measuring element to break down. Direct sunlight should be avoided. Sub-
stances deposited on the sensor are damaging as they eventually form a water-
repellent film (this applies to all humidity sensors with hygroscopic measuring
elements). Such substances are resin aerosols, lacquer aerosols, smoke depos-
its etc. The water-resistant property of the Kobold sensors allows for cleaning
using water. Solvents cannot be used for this purpose. A light-duty detergent is
recommended. Any detergent residue should, however, always be thoroughly
washed out. A special process ensures that Kobold sensors have good long-term
stability. Regeneration is not necessary, but is also not harmful.
The temperature coefficient as well as the self-heating may vary according to the
location and the application (especially with sensors where electronic and meas-
uring system are integrated in one housing).
The guarantee is no longer valid if the interior of the measuring element
has been accessed.
