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5 Explosion Protection Volume 1
Visual inspection Carry out regular visual inspections of the SENSseries measuring
system, at least once every three years. To do this, use the visual
inspection plan in chapter 5.8.1. Take appropriate actions immedi-
ately if you detect damage in the course of the visual inspection; if
necessary, disconnect the detector from power supply immediately.
To determine the inspection intervals for the visual inspection, take
the following conditions into consideration:
• ambient conditions (temperature, humidity, corrosive atmo-
sphere, shock and vibrations)
• operating conditions (degree of utilization, operating errors)
• major changes in the overall system (e.g.changes in zoning)
Seals If the cover or the housing is opened, check the respective seals and
replace them, if necessary.
Cleaning Take care not to damage the cable glands and the type plates
during cleaning. Remove coarse debris with a stainless steel wire
brush. Grinding, filing or chipping away deposits with the hammer
is not permitted.
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