OPERATING INSTRUCTIONS
6
Mounting
6.1
Mounting instructions
en
7
Electrical installation
7.1
Notes on the electrical installation
24
O P E R A T I N G I N S T R U C T I O N S | WTT12-S
•
Mount the sensor using a suitable mounting bracket (see the SICK range of
accessories).
•
Mount the device on a prepared bracket using suitable screws (M4). The screws
are not included with delivery.
•
The device should be mounted and operated as free from shock and vibration as
possible.
•
Mount the device so that it is not exposed to direct sunlight (window, skylight)
or other sources of heat. This prevents the temperature inside the device from
increasing unacceptably, or a reduction or loss of detection capability.
•
Observe the technical data.
•
Maximum permitted tightening torque: 0.8 Nm.
•
To prevent condensation, avoid exposing the device to rapid changes in tempera‐
ture.
NOTICE
Device damage due to incorrect supply voltage!
An incorrect supply voltage may result in damage to the device.
Only operate the device with safety/protective extra-low voltage (SELV/PELV).
■
The sensor is a device of protection class III.
■
NOTICE
Device damage due to incorrect supply voltage!
An incorrect supply voltage may result in damage to the device.
•
Only operate the device with an LPS (limited power source) in accordance with IEC
62368-1 or an NEC Class 2 power supply unit.
NOTICE
Device damage or unpredictable operation due to working with live parts!
Working with live parts may result in unpredictable operation.
Only carry out wiring work when the power is off.
■
Only connect and disconnect electrical connections when the power is off.
■
The electrical installation must only be performed by electrically qualified person‐
■
nel.
Standard safety requirements must be met when working on electrical systems!
■
Only switch on the supply voltage for the device when the connection tasks have
■
been completed and the wiring has been thoroughly checked.
When using extension cables with open ends, ensure that bare wire ends do not
■
come into contact with each other (risk of short-circuit when supply voltage is
switched on!). Wires must be appropriately insulated from each other.
Wire cross-sections in the supply cable from the user's power system must be
■
selected in accordance with the applicable standards.
8029123/2024/01/15 | SICK
Subject to change without notice