1.10
Disassembly and disposal
1.11
Maintenance
8017852.1HW2/2022-11-14 | SICK
Subject to change without notice
LED/fault pattern
Yellow LED flashes; if Health is
present then take note of the
corresponding output signal; if
Alarm is present then take note
of the corresponding output
signal
Signal interruptions when
object is detected
The sensor must be disposed of in line with applicable country-specific regulations.
When disposing of them, you should try to recycle them (especially the precious met‐
als).
NOTE
Disposal of batteries, electric and electronic devices
•
According to international directives, batteries, accumulators and electrical or
electronic devices must not be disposed of in general waste.
•
The owner is obliged by law to return this devices at the end of their life to the
respective public collection points.
•
WEEE:
This symbol on the product, its package or in this document,
indicates that a product is subject to these regulations.
This SICK sensor is maintenance-free.
We do, however, recommend that the following activities are undertaken regularly:
•
Clean the optical interfaces and housing
•
Check the fittings and plug connectors
Cause
Sensor is still ready for oper‐
ation, but the operating con‐
ditions are not ideal/addition‐
ally with health output: power
supply interrupted
Depolarizing property of the
object surface (e.g., tape),
reflection
O P E R A T I N G I N S T R U C T I O N | HL18(L), HL18G/HL18T
OPERATING INSTRUCTION
Measures
Check the operating condi‐
tions: Fully align the beam
of light (light spot) with the
reflector. / Clean the optical
surfaces (sensor and reflec‐
tor) / If the potentiometer
is set to the max. sensi‐
tivity: Reduce the distance
between the sensor and the
reflector, and check the reflec‐
tor type / Reflector is not
suitable for the application
in question (we recommend
only using SICK reflectors)
section 1.8.2
/ Check sensing
range and adjust if necessary,
see figures in
section
1.8.2. /
With health output: Check the
voltage supply, check all elec‐
trical connections (cables and
plug connections).
Reduce sensitivity or change
the position of the sensor
51