32 SICK 2008-07-21
Photoelectric reflex switch, WL12G-3, for transparent objects, red light
Scanning range
0 ... 4 m
Photoelectric reflex switch
Robust metal housing with
dovetail mounting clamps
Reliable detection of glass and
transparent films
Adjustable sensitivity
High device availability in
industrial environments
Range between –40 °C ... +60 °C
Dimensional drawing
19.4
1024
15.6
7. 3
23.1
6.1
32
48.5
5.1
42
6
7
5
5
3
2
4
1
ø 4.2
1
Optical axis
2
LED indicator yellow, status: light reception
3
LED indicator green, supply voltage active
4
Mounting thread M4 – 4 mm deep
5
Mounting thread, Ø 4.2 mm
6 6
Scanning range adjuster, potentiometer
7
Connection
Adjustments possible
6
32
Accessories
Connector, M12, 4-pin
Connector, M12, 5-pin
Mounting systems
Connection type
WL12G-302431
M12, 4-pin
1L+
M
4
2
3
brn
blk
wht
blu
QP
L/D
WL12G-3B2581
M12, 5-pin
1L+
M
QP
L/D
3
4
2
5QN
brn
blu
blk
wht
gra
DB_W12_3_en.fm Seite 32 Dienstag, 12. August 2008 1:55 13
2008-07-21 SICK 33
W12-3
Technical data
WL12G-3 B2531 O2431
Scanning range typ. max.
0 ... 4 m
Scanning range, recommended
0 ... 2.5 m
Relating to Reflector PL80A
Sensitivity adjustment Potentiometer (11 turn)
Light source, light type
LED, Red light, 640 nm
1)
Light spot diameter Approx. 25 mm at 1.5 m distance
Angle of dispersion Approx. 1.5
°
Polarisation filter
Supply voltage V
s
DC 10 ... 30 V
2)
Ripple
≤
5 V
pp
3)
Power consumption
≤
30 mA
4)
Switching outputs
Q
PNP
and Q
NPN
PNP
Signal voltage PNP HIGH/LOW > V
s
- 3 V/approx. 0 V
Switching mode Light-/dark-switching, switchable
5)
Output current I
a
max 100 mA
Response time
≤
330
µ
s
6)
Switching frequency 1,500 Hz
7)
Connection type
Connector, M12, 5-pin
Connector, M12, 4-pin
VDE protection class
8)
Circuit protection
V
s
connections reverse-polarity protec-
ted/All outputs short-circuit protected/
Interference suppression
Enclosure rating
IP 66, IP 67, IP 69 K
Ambient temperature operation
–40
°
C ... +60
°
C
Ambient temperature storage
–40
°
C ... +75
°
C
Weight
Approx. 120 g
Housing material
Zinc die-cast
9)
1) Average service life 100,000 h at
Ta = +25 °C
2) Limit values, operation in short-circuit
protected network max. 8 A
3) May not exceed or fall short of Vs
tolerances
4) Without load
5) Control cable 0 V or open-circuited =
light-switching. Control cable Vs =
dark-switching
6) Signal transit time with resistive load
7) With light/dark ratio 1:1 in switching
mode
8) Reference voltage 50 V DC
9) Teflon-coated housing available on
request
Signal voltage NPN HIGH/LOW Approx. > V
s
/< 3 V
2
3
4
5
6
7
8
3
2
(m)
Operating range Scanning range typ. max.
3.52.3
3.52
1.6
0.8
6
5
4
3
2
1
PL30A
PL40A
PL50A
P250F
C110A
PL80A
Reflector type
0 ... 1.6 m
8
7
Reflective tape
Diamond Grade
PL20A
0 ... 0.2 m
0 ... 0.8 m
0 ... 2.5 m
0 ... 2.0 m
0 ... 2.3 m
0 ... 2.5 m
0 ... 2.5 m
Operating range
0.2 0.8
0.5 1 1.5 2 2.5 3 3.5 4
2.5
1 4
2.5
3
2.5
4
0.5 1 1.5 2 2.5 3 3.5 4
(m)
10
1
Operating reserve
Operating
range
8
5
2
3
4
6
7
1
Scanning range and operating reserve
Order information
Type Order no.
WL12G-3B2531 1041456
WL12G-302431 1041457
DB_W12_3_en.fm Seite 33 Dienstag, 12. August 2008 1:55 13
