2
Safety information
2.1
General safety notes
■
Read the operating instructions before commissioning.
■
Connection, mounting, and configuration may only be performed by trained
specialists.
■
2006/42/EC
NO
SAFETY
Not a safety component in accordance with the EU Machinery Directive.
■
Do not install the sensor at locations that are exposed to direct UV radiation
(sunlight) or other weather influences, unless this is expressly permitted in the
operating instructions.
■
When commissioning, protect the device from moisture and contamination.
■
These operating instructions contain information required during the life cycle of
the sensor.
2.2
Notes on UL approval
UL approval
Table 1: UL approval
G20 products with DC voltage supply and con‐
nector or cable or cable with connector
G20 products with UC voltage supply with
cable and cable with connector
G20 products with terminal chamber (DC and
UC voltage supply)
Gxx20x-QK and Gxx20x-QL
The device shall be supplied from an isolating transformer having a secondary overcur‐
rent protective device that complies with UL 248 to be installed in the field rated either:
a)
max 5 amps for voltages 0 V ~ 20 V (0 V ~ 28.3 V peak), or
b)
100 / Vp for voltages of 20 V ~ 30 V (28.3 V ~ 42.4 V peak).
Alternatively, they can be supplied from a Class 2 voltage supply.
UL Environmental Rating: Enclosure type 1
For use in NFPA 79 Applications only.
OPERATING INSTRUCTIONS
8026844/2022-06-09 | SICK
O P E R A T I N G I N S T R U C T I O N S | GLD20
23
Subject to change without notice
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Summary of Contents for GLD20
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Page 121: ...M A N U A L D E I N S T R U E S GLD20 Barreiras de luz compactas de en es fr it ja pl pt zh...
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