Data Sheet

Germany: [phone]Pepperl+Fuchs Group
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
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1
Thru-beam sensor LA39/LK39-Z/31/40a/116
Release date: 2018-07-31 14:35 Date of issue: 2018-07-31 088807_eng.xml
Dimensions
Electrical connection
Indicators/operating means
Optical axis receiver
Optical axis emitter
Terminal compartment
45
25
19
6
64
15
17
28.4
40.5
ø 5.4
ø 5.4
75
81.8
3
4
1
2
PG9
~/+UB
~/0 V
NO
C
2
1
3
4
31/40a
Emitter
1 Operating display red (Transmitter)
1 Pre-fault indication red (Receiver)
2 Switch state yellow
3 Light/dark on switch
4 Sensitivity adjustment
5 Timer mode switch (version -Z)
6 Time adjuster (version -Z)
2
5
1
4
3
6
D
L
1 2 3 4
S
Model Number
LA39/LK39-Z/31/40a/116
Thru-beam sensor
with terminal compartment
Features
•Light/dark ON, switchable
• Timer function
• Supplied with mounting accessory
• Degree of protection IP67
Product information
Series 39 sensors are characterized by their
high performance level, compact housing
design, and variety of available versions.
These include thru-beam sensors with a 20 m
detection range, retroreflective sensors with
polarization filter for a 5 m detection range,
energetic diffuse mode sensors with an
800 mm and 2000 mm detection range, and a
background suppression sensor with 500 mm
detection range. Fitted in a robust plastic
housing, this series is ideal for tough indus-
trial applications.
The sensors are supplied with 10 V to
30 V DC, or 24 V to 240 V AC/DC. Various
transistor and relay outputs are available as
signal outputs. Standard features include pre-
fault diagnostics and pre-fault output. The
switching element function can be changed
using the light/dark switch.