INSTUM_01378 Pag. 8/12
5 Maintenance
This sensor is a precision measurement apparatus. In order to maintain the specified measurement
precision over the time, LSI LASTEM recommends check it periodically (at least twice a year); it is
moreover suggested the replacement of the measure element according to the place of installation
(in persistent conditions of high humidity, pollution, dust and chemical substances presence, the
sensitive element deteriorate faster than the one placed in a location with less adverse conditions). It
is, anyway, a good rule to replace the sensitive element at least once every two years.
Please, remind that the sensitive element ML3015, when used, is no under guarantee.
5.1 Cleaning the antiradiant shield
Clean the external anti-radiant shield with the aid of a small brush or a wet rag.
5.2 Cleaning the measuring elements and the porous filter
1. Disconnect the cable from the probe;
2. Unscrew the cable seals at the bottom and pull out the sensor from the shield;
3. Unscrew the filter;
4. Clean the filter with a cold air jet.
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