1 Safety information
1.1 General safety notes
■
Read the operating instructions before commissioning.
■
Connection, mounting, and setting may only be performed by trained spe‐
cialists.
■
Not a safety component in accordance with the EU Machinery Directive.
■
When commissioning, protect the device from moisture and contamination.
■
These operating instructions contain information required during the life cycle of
the sensor.
1.2 Notes on UL approval
The device must be supplied by a limited voltage / limited current circuit or is intended
to be connected to a Class 2 source of supply. In case of a limited voltage / limited cur‐
rent circuit the device shall be supplied from an isolating transformer having a sec‐
ondary overcurrent protective device that complies with UL 248 to be installed in the
field rated either:
a) max 5 amps for voltages 0~20 V (0~28.3 V peak), or
b) 100/Vp for voltages of 20~30 V (28.3~42.4 V peak).
UL Environmental Rating: Enclosure type 1
2 Intended use
The WLG16 is an opto-electronic photoelectric retro-reflective sensor (referred to as
“sensor” in the following) for the optical, non-contact detection of objects, animals, and
persons. A reflector is required for this product to function. If the product is used for any
other purpose or modified in any way, any warranty claim against SICK AG shall become
void.
Photoelectric retro-reflective sensor with optional add-on for detecting transparent
objects (WLG-xx).
3 Operating and status indicators
1 SAFETY INFORMATION
4
8022197 | SICK
Subject to change without notice
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