SICK Advanced Series

Chapter 7 Operating Instructions
CLV490 Bar Code Scanner
7-2 © SICK AG · Division Auto Ident · Germany · All rights reserved 8009993/RA61/2007-07-20
Maintenance
If the reading window is scratched or damaged (cracked, broken), it must be replaced. Plea-
se contact the SICK Service.
Cleaning the housing
In order to ensure sufficient cooling for the CLV490, make sure that the housing is always
clean.
¾ Use a soft brush to free the housing from dust.
¾ If necessary, clean the LEDs on the rear of the device.
7.2.2 Cleaning other optical surfaces
If an external reading pulse generator and/or object-height detection sensors are used (e.
g. photoelectric reflex switches), further sensors with optical effective surfaces can be instal-
led. Soiling of these surfaces can cause incorrect switching behaviour.
¾ In order to prevent incorrect switching behaviour, remove soiling from the optical effec-
tive surfaces of the external sensors.
Fig. 7-1: Cleaning the reading window
Side reading window
Front reading window
Clean here
Fig. 7-2: Cleaning the external optical sensors (reading pulse generator, object-height detector)
Trigger stop (optional)
Trigger start
Clean here
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