10 Maintenance
10.1 Safety
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of
non-observance.
b
Do not do repair work on device components.
b
Do not make changes to or manipulate device components.
b
Apart from the procedures described in this document, the device components
must not be opened.
10.2 Regular cleaning
Overview
Depending on the ambient conditions of the safety light curtain, the front screens must
be cleaned regularly and in the event of contamination. Static charges can cause dust
particles to be attracted to the front screen.
The deflector mirrors also must be cleaned regularly and in the event of contamination.
If contamination increases, the two lit diagnostics LEDs 1 and 2 show that the receiver
is getting a weak signal from the sender. If the device is not cleaned and contamination
increases, the safety light curtain switches to the OFF state when contamination is high.
Important information
DANGER
Ris
k of ignition or explosion
Static discharge could cause explosions in hazardous atmospheres.
b
Always use anti-static cleaning agents to prevent static charge.
b
Do not clean the device using a dry cloth.
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of
non-observance.
b
Regularly check the degree of contamination on all components based on the
application conditions.
b
Observe the information concerning test rod testing.
10 M
AINTENANCE
112
O P E R A T I N G I N S T R U C T I O N S | deTec4 Ex II 3GD 8023872/18YZ/2021-01-14 | SICK
Subject to change without notice
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