Display, error situation
Cause
Measure
Yellow LED flashes fast, laser
is off, temperature is ok and
ISDU 36 shows "transmitter
failure".
Laser has undervoltage if this
condition is not temporary, but
permanent.
In case of defect, replace the
device.
Yellow LED flashes fast, laser
is on, ISDU 36 shows "Device
ok".
Last teach failed
Restart the device or re-teach
or perform factory reset.
8
Maintenance
8.1
Maintenance
During operation, the device works maintenance-free.
Depending on the assignment location, the following preventive maintenance tasks
may be required for the device at regular intervals:
Table 4: Maintenance schedule
Maintenance work
Interval
Implementation
Clean housing and front screen
Cleaning interval depends on ambi‐
ent conditions and climate
Specialist
Check screw connections and plug
connectors
Every 6 months
Specialist
8.2
Cleaning the device
At regular intervals (e.g., weekly), check the light emission window and the housing of
the device for dirt. This is especially relevant in harsh operating environments (dust,
abrasion, damp, fingerprints, etc.). The lens of the light emission window must be kept
clean and dry during operation.
NOTICE
Device damage due to improper cleaning!
Improper cleaning may result in device damage.
■
Only use suitable cleaning agents.
■
Never use sharp objects for cleaning.
Cleaning the light emission window
NOTICE
Damage to the light emission window!
Reduced reading performance due to scratches or streaks on the light emission win‐
dow!
b
Clean the light emission window only when wet.
b
Use a mild cleaning agent that does not contain powder additives. Do not use
aggressive cleaning agents, such as acetone, etc.
b
Avoid any movements that could cause scratches or abrasions on the light emis‐
sion window.
b
Only use cleaning agents suitable for the screen material.
OPERATING INSTRUCTIONS
8022570.1FBN/15.09.2022 | SICK
O P E R A T I N G I N S T R U C T I O N S | PowerProx Mini - WTT4SLC
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