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SICK WT18X-3P920 Overview



Photoelectric Proximity Switch WT18X-3P920 Based on: WT18-3P420 with cable 290 mm and M12, 4-pin

SICK WT18X-3P920 Description



  • Best-in-class optical performance due to superior OES technology
  • Background suppression with second sender LED
  • Slim, sturdy plastic housing
  • Sensors meet requirements of the 3G/3D device category
  • Your benefits

  • Reliable detection thanks to best-in-class background suppression and high insensitivity to extraneous light
  • Use in potentially explosive atmospheres
  • Less device downtime in field-of-use
  • Easily installed with SICK accessories

Features
Dimensions (W x H x D)::17.6 mm x 75.5 mm x 33.5 mm
Sensing range max.: 10 mm ... 1,000 mm 1)
Sensing range: 50 mm ... 1,000 mm 2)
Housing desig (light emission):Slim
Light source:LED 3)
Type of light:Infrared light
Wave length:870 nm
Adjustment:adjustable
Sensitivity adjustment:Adjustable potentiometer, 4-turn
Sensor/detection principle:Photoelectric proximity sensor, Background suppression
Light spot (distance):30 mm (600 mm)
1) 2) Object with 90 % reflectance (referred to standard white DIN 5033) 3) Average service life 100,000 h at Ta = +25 C
Mechanics/electronics
Enclosure rating:IP 67
Supply voltage:10 V DC ... 30 V DC 1)
Residual ripple:< 5 Vpp 2)
Power consumption:55 mA 3)
Switching output:PNP, light/dark-switching
Output current Imax.:100 mA
Response time:< 700 s 4)
Switching frequency:700 Hz with light/dark ratio 1:1
Connection type:Cable with plug, M12, 4-pin 0.29 m 5)
Cable material:PVC
Circuit protection:A
C
D 6) 7) 8)
Weight:300 g
Housing material:ABS
Optics material:PMMA
Ambient temperature, operation:-40 C ... 60 C
Ambient temperature, storage:-40 C ... 75 C
Voltage supply-LED:
Output state-LED:
Ex marking (ATEX):EX II 3D IP67 T70 C
Ex II 3G EEx nA II T4 X 9)
Hazardous area category:3D, 3G
1) Limit values, operation in short-circuit protected network max. 8 A 2) 3) Without load 4) Signal transit time with resistive load 5) Do not bend below 0 C 6) A = VS connections reverse-polarity protected 7) C = interference suppression 8) D = outputs overcurrent and short-circuit protected 9) Conformity with directives. Explosion prevention: Directive 94/9/EC


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