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  • A&S Automation Co., Ltd.
  • Address: 469 Xinsheng Road, Gaoxin District, Chengdu, China
  • Tel: +86-28-67198331
  • Fax: +86-28-86129221
  • Email: sensor@esmachinery.com
  • Contact Person: Ivy

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SICK WTB27X-3P1811 Overview



WTB27X-3P1811 Photoelectric Proximity Switch

SICK WTB27X-3P1811 Description



  • Marking: EX II 3D IP67 T70C, EX II 3G EEx nA II T4 X according to Directive 94/9/EC (ATEX)
  • Corresponds to 3D/3G category
  • Conform with standards and ready-to-install: Sensor + protective housing (stainless steel 1.4301)
  • Large scanning distances with IR LED
  • Precise background suppression with no scanning distance drift
  • Reliable operation in industrial environments - with ambient light, optical reflections and when devices are mounted opposite one another

    • Your benefits

  • Ready-to-install sensors conform with the 3G/3D category for explosive zones (ATEX)
  • Very precise detection with no scanning distance drift in case of vibrations
  • Less downtime due to ASIC chip technology by SICK
  • Reliable in operation with ambient light, optical reflections, and when devices are mounted opposite one another

Features
Dimensions (W x H x D)::31.4 mm x 112.3 mm x 70.4 mm
Sensing range max.: 30 mm ... 1,600 mm 1)
Sensing range: 100 mm ... 1,600 mm
Housing desig (light emission):Cuboid
Light source:LED 2)
Type of light:Infrared light
Wave length:880 nm
Adjustment of operating distance:Potentiometer
Sensor/detection principle:Photoelectric proximity sensor, Background suppression
Light spot (distance):25 mm (800 mm)
1) Object with 90 % reflectance (referred to standard white DIN 5033) 2) 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:≤ 40 mA 3)
Switching output:PNP, light/dark-switching, Complementary
Output current Imax.:≤ 100 mA
Response time:≤ 1.5 ms 4)
Switching frequency:350 Hz 5)
Connection type:Cable, 4-wire 10 m 6)
Cable material:PVC
Protection class:II 7)
Circuit protection:A
B
C 8) 9) 10)
Weight:750 g
Housing material:ABS, Stainless steel 1.4301
Optics material:PMMA
Ambient temperature, operation:-20 C ... 50 C
Ambient temperature, storage:-40 C ... 75 C
Signal voltage PNP HIGH / LOW:approx. VS - 2.5 V / 0 V
Ex marking (ATEX):EX II 3D IP67 T70 C
Ex II 3G EEx nA II T4 X
Hazardous area category:3D, 3G
1) Limit values, operation in short-circuit protected network max. 8 A 2) May not exceed or fall short of VS 3) Without load 4) Signal transit time with resistive load 5) With light/dark ratio 1:1 6) Do not bend below 0 C 7) Reference voltage 50 V DC 8) A = VS connections reverse-polarity protected 9) B = inputs and output reverse-polarity protected 10) C = interference suppression


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