Multi-Beam Safety Light Array
139
12. Servicing
DANGER!
Risk of safety device failure!
• No repairs may be carried out on the ESPE.
• No changes or manipulations may be carried out on the ESPE.
12.1 Maintenance
NOTE!
•
This wenglor sensor is maintenance-free.
• The instructions for the annual (see
and regular inspection
(see
, as well as cleaning
must be
observed.
12.2 Cleaning
NOTE!
• The panes of the ESPE must be clean at all times. They must be free from contamination,
scratches or roughening.
• Contamination of any kind has a direct impact on the signal strength of the ESPE and may
result in malfunctions.
• The panes may only be cleaned with the supply voltage disconnected.
• It is advisable to clean the panes regularly. The frequency of the cleaning depends on the level of contami-
nation on the system.
• Cleaning takes place with a clean, soft and damp (to prevent electrostatic charge) cloth, without putting any
pressure on the pane.
• Do not clean the ESPE with solvents or cleaning agents which could damage the device (aggressive, abra-
sive, scratching).
• To guarantee good and lasting legibility of the segment display, the same cleaning measures are recom-
mended as for the panes.
• After cleaning, check the function of the safety device (see