User guide

WIKA operating instructions mini limit switch, model LSO.02 13
13334591.02 10/2010 GB/D/F/E
GB
7. Maintenance, cleaning / 8. Faults
7.2 Cleaning
CAUTION!
■
Before cleaning, correctly disconnect the instrument from the pressure
supply, switch it o and disconnect it from the mains.
■
Clean the instrument with a moist cloth.
■
Electrical connections must not come into contact with moisture.
■
Wash or clean the dismounted instrument before returning it, in order to
protect sta and the environment from exposure to residual media.
■
Residual media in dismounted instruments can result in a risk to persons,
the environment and equipment. Take sucient precautionary measures.
For information on returning the instrument see chapter "10.2 Return".
8. Faults
Faults Possible causes Measures
No function No power supply Measure power supply, check
connection to cable or plug
No function in spite of
liquid level change
Contamination or scale on
the glass-tip
Clean glass-tip (set up periodic
maintenance)
Sensor works to reverse
logic
SA instead of SE or SE
instead of SA specied
Change sensor
CAUTION!
If faults cannot be eliminated by means of the measures listed above, the
instrument must be shut down immediately, and it must be ensured that
pressure and/or signal are no longer present, and it must be prevented from
being inadvertently put back into service.
In this case, contact the manufacturer.
If a return is needed, please follow the instructions given in chapter
"10.2 Return".