9.7
Cleaning the optical interfaces
DANGER
Risk of explosion through residual voltages and hot surfaces in the device
When the device is switched off, residual voltages and hot surfaces represent an
increased risk of explosion when the device is open.
b
Wait 20 minutes after switching off the main power supply before opening the
enclosure.
Materials required
Part number
Optics cleaning cloth
4003353
Demineralized water
1
2
Figure 33: Optical interfaces on the SR-unit
1
Sender/receiver unit GM700 Ex (open, without intermediate enclo‐
sure)
2
Target
1
Switch device off and open,
see "Removing the sender/receiver unit", page 71
2
Flap the target holder upwards and check the sender/receiver unit window under‐
neath for contamination.
MAINTENANCE
9
8019532/100Q/V1-1/2018-08 | SICK
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
73
Subject to change without notice