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.
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.
1. Make sure that the optical properties of the protective housing of the sender and
receiver are not changed during operation, e.g., by:
°
Beading water, mist, frost, or ice formation on the protective housing. Remove
condensation of this kind or other types of contamination, then restart the
receiver.
°
Scratches or damage to the protective housing. Replace the protective hous‐
ing of the respective sender or receiver if its protective housing is scratched
or damaged.
2. Make sure that all reflective surfaces and objects maintain a minimum distance
from the protective field.
3. Make sure that no dispersive media (e.g., dust, fog, or smoke) are within the calcu‐
lated minimum distance from the protective field.
DANGER
H
azard due to unexpected starting of the machine
b
Make sure that the dangerous state of the machine is and remains switched off
during the cleaning.
b
Make sure that the outputs of the safety light curtain do not affect the machine
during the cleaning process.
NOTICE
b
Do not use any aggressive cleaning agents.
b
Do not use any abrasive cleaning agents.
b
Do not use any oil-based cleaning agents.
b
We recommend anti-static cleaning agents.
Approach
1.
Remove dust from the front screen using a soft, clean brush.
2. Then wipe the front screen with a clean, damp cloth.
3. Check the position of the sender and receiver after cleaning.
4. Check the effectiveness of the protective device.
9 M
AINTENANCE
54
O P E R A T I N G I N S T R U C T I O N S | deTec4 Core Ex 8017023/14Q6/2020-04-27 | SICK
Subject to change without notice
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