Photoelectric sensors
W18-3, Photoelectric proximity sensor, Background suppression
Type
Part No.
> WT18-3N210
> 1025892
At a glance
• Sender LED with infrared light
• Precise background suppression
• Sensing range setting via potentiometer
• Immune to ambient light
• Rugged plastic housing
Your benefits
• Long sensing distances due to high-performance infrared light
• Reliable object detection with high-precision background suppression due to
second sender LED
• Quick and easy sensing distance adjustment due to 4-turn potentiometer
• Crosstalk and ambient light immunity reduce false readings and downtime
• High availability in the field
Illustration may differ
Features
Sensor/detection principle:
Dimensions (W x H x D):
Housing design (light emission):
Sensing range max.:
Sensing range:
Type of light:
Light source:
Adjustment:
Light spot size (distance):
Continuous threshold adaption:
1) 2)
Photoelectric proximity sensor, Background suppression
17.6 mm x 75.5 mm x 33.5 mm
Rectangular
1)
10 mm ... 700 mm
2)
50 mm ... 700 mm
Infrared light
3)
LED
Potentiometer, 4 turns
Ø 20 mm (400 mm)
-
3)
Average service life of 100,000 h at T = +25 °C
A
Object with 90 % reflectance (referred to standard white, DIN 5033)
Mechanics/electronics
Supply voltage:
Ripple:
Power consumption:
Output type:
Output function:
Switching mode:
Output current Imax.:
10 V DC ... 30 V DC
2)
< 5 Vpp
3)
55 mA
NPN
Complementary
Light/dark switching
100 mA
1)
Photoelectric sensorsAAAAAAAAAAAAA© SICK AG. Subject to change without notice.AAAAAAAAAAAAA3/8/2016 3:54:50 AM
Response time:
Switching frequency:
Connection type:
Cable material:
Circuit protection:::
Weight:
Housing material:
Optics material:
Enclosure rating:
Ambient operating temperature:
Ambient storage temperature:
UL File No.:
1)
< 700 µs
5)
700 Hz
6)
Cable, 4-wire, 5 m
PVC
7) 8) 9)
A, C, D
260 g
ABS, Plastic
PMMA
IP 67
-40 °C ... +60 °C
-40 °C ... +75 °C
NRKH.E181493 & NRKH7.E181493
4)
2)
3)
4)
Limit values, operation in short-circuit protected network max. 8 A
May not exceed or fall short of V tolerances
Without load
Signal transit time with resistive
S
5)
6)
7)
8)
9)
load
With light/dark ratio 1:1
Do not bend below 0 °C
A = V connections reverse-polarity protected
C = interference suppression
D = outputs
S
overcurrent and short-circuit protected
Dimensional drawing
Photoelectric sensorsAAAAAAAAAAAAA© SICK AG. Subject to change without notice.AAAAAAAAAAAAA3/8/2016 3:54:50 AM
Training Edition
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