SICK PowerProx Micro WTT2SL Betriebsanleitung Seite 16

8 Maintenance
8.1 Maintenance
8.2 Cleaning the device
8021879.1A75 / 2020-12-11 | SICK
Subject to change without notice
Display, error situation
Yellow LED flashes (only
briefly)
Yellow LED flashes quickly
(only briefly)
Yellow LED lights up, no object
in the path of the beam
Object is in the path of the
beam, yellow LED does not
light up
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
Clean housing and front screen
Check screw connections and plug
connectors
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!
Clean the light emission window only when wet.
b
Use a mild cleaning agent that does not contain powder additives. Do not use
b
aggressive cleaning agents, such as acetone, etc.
Avoid any movements that could cause scratches or abrasions on the light emis‐
b
sion window.
Only use cleaning agents suitable for the screen material.
b
Cause
Teach-in mode
Teach-in button lock active
Distance between the sensor
and the background is too
short
Distance between the sensor
and the object is too long or
sensing range is set too short
Interval
Cleaning interval depends on ambi‐
ent conditions and climate
Every 6 months
MAINTENANCE
Measure
Check the teach-in mode
Deactivate the button lock
Reduce the sensing range, see
teach-in
Increase the sensing range,
see teach-in
Implementation
Specialist
Specialist
8
15