38477BA2B
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4 Repair, Maintenance and Service Volume 2
4.2 Visual Inspection of the Uni-Probe
If you answer one of the following questions with “No”, you have to
record the action you have taken to remedy this deficiency in the
last column. Make sure before you take the device into operation
again that the provisions you have taken are correct by consulting
with the person in charge of explosion protection.
Date: .....................
Name: ...................................................
YES NO Provisions
General check
Is the housing free of corrosion, dents, cracks, holes
and warps?
Is the housing cover of the Uni-Probe firmly attached
and fixed with screws?
Are the permissible temperatures observed in accor-
dance with EN 60079-0?
Are the external connections of the potential equalizer
in good working order?
Is the O-ring for the sealing of the cover OK? (The O-
ring is visible from the outside at the edge of the
cover)
Is the surface of the Uni-Probe free of contact with
other non-alloy steel parts?
Test of cable conduits
Are the screwed cable glands free of corrosion?
Are the screw fittings and adapters used suitable for
the required explosion group?
Are screw connections, adapters and dummy plugs
fixed properly?
Does the cable sealing ensure explosion protection?
Are cables and cable bushing undamaged?
Are there any doubts concerning the sealing of the
screwed cable glands?
Are all unused openings provided with dummy plugs?
Are the dummy plugs adequate for the required explo-
sion group?
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