
1 Safety information
1.1 General safety notes
■Read the operating instructions before commissioning.
■
Connection, mounting, and configuration may only be performed by trained
specialists.
■
Not a safety component in accordance with the EU Machinery Directive.
■
Do not install the sensor at locations that are exposed to direct sunlight
or other weather influences, unless this is expressly permitted in the operating
instructions.
■These operating instructions contain information required during the life cycle of
the sensor.
1.2 Notes on UL approval
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 ~ 20 V (0 ~ 28.3 V peak), or
b) 100 / Vp for voltages of 20 ~ 30 V (28.3 ~ 42.4 V peak).
Alternatively, they can be supplied from a Class 2 power supply.
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 it 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.
WLG16 is a photoelectric retro-reflective sensor with optional add-on for detecting
transparent objects.
3 Operating and status indicators
WLG16x-xxxxxx20 WLG16-xxxxxxx21 WLG16-xxxxxxx22
1BluePilot blue: mode selection
1 SAFETY INFORMATION
48020349.19RH / 22.12.2020 | SICK
Subject to change without notice