Pepperl+Fuchs LKL-P1 Mode D'emploi page 24

Trouble-shooting
24
Fault Reason
Does not switch No power
Faulty signal line
Sporadic faulty Thick heavy foam,
switching very turbulent conditions,
foaming liquid
Extreme radio interference
Water in housing
Remedy
Check power
Check signal line
Mount device in a bypass if
necessary
Screen connecting cable
Clean cover and cable gland
and screw tight