Datasheet

Germany: [phone]Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
USA: [phone] Singapore: [phone]
www.pepperl-fuchs.com [e-mail] [e-mail]
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Diffuse mode sensor VT18-8-400-M-LAS/40a/118/128
4
Release date: 2018-07-27 11:39 Date of issue: 2018-07-27 801135_eng.xml
Sensitivity adjustment
• Turn sensitivity adjuster (counterclockwise) to minimum position.
• Place the object to be detected in the sensing range and turn the sensitivity adjuster
clockwise until the yellow indication LED lights up. This setting indicates the position A
of the sensitivity adjuster.
• Remove the object. Increase the sensitivity slowly (turning the sensitivity adjuster
clockwise) until the yellow LED lights up again. This setting indicates the position B of
the sensitivity adjuster.
Note:
In case of no background object, the LED won’t light up, even in MAX. adjustment. In
that case take care, that in normal operation conditions no temporal background object
can appear in the sensing range (e. g. parked pallets). If this can not be excluded,
place (only for adjustment matter) an object at the appropriate location. Then repeat
this adjustment step. After finishing the adjustment this temporal object should be
removed.
• For optimal setting, now turn the sensitivity adjuster to the middle position between the positions A and B.
• The irradiation can lead to irritation especially in a dark environment. Do not point at people!
• Maintenance and repairs should only be carried out by authorized service personnel!
• Attach the device so that the warning is clearly visible and readable.
• The warning accompanies the device and should be attached in immediate proximity to the device.
• Caution – Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation
exposure.
Curves/Diagrams
Laser notice laser class 1
12
10
8
6
4
2
0
0 50 100 150 200 250 300 350 400 450
Emission divergence
Distance X [mm]
Light spot dimensions [mm]
Light spot
Adjustment
sensitivity adjusterlight/dark switch
yellow LED
position A position
B
optimal setting
SENS.
DL