SICK WTB4FT-1G311120ZZZ Photoelectric Sensor

USD 179.34

Background-suppression photoelectric sensor, 7–120 mm sensing range, IP66/IP67, visible red PinPoint LED, teach-turn adjustment.

SKU SICK-1113178 Category
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SICK WTB4FT-1G311120ZZZ Photoelectric Sensor

Model Identifier WTB4FT-1G311120ZZZ
Official Part Number 1113178
GTIN Standard 4047084504143

Technical Overview

Photoelectric proximity sensor with background suppression and DoubleLine optics. The device is designed for reliable object detection over a 7 mm to 120 mm sensing range, with a PinPoint LED visible red light source, teach-turn adjustment, and status indication LEDs. It is housed in a compact body rated IP66/IP67 and specified for industrial environments from -40 °C to +60 °C.

Key Features

  • Photoelectric proximity sensor
  • Background suppression, DoubleLine
  • PinPoint LED visible red light source
  • Teach-Turn adjustment via BluePilot
  • LED status indication for power, received light, and object presence
  • Compact industrial enclosure
  • IP66 and IP67 protection rating
  • Operating temperature range -40 °C to +60 °C

Background suppression with DoubleLine optics for stable detection of small or contrast-challenging objects.

Technical Specification Matrix

ParameterValue
Functional principlePhotoelectric proximity sensor
Functional principle detailBackground suppression, DoubleLine
Sensing range min.7 mm
Sensing range max.120 mm
Adjustable switching threshold for background suppression15 mm ... 120 mm
Reference objectObject with 90% remission factor (standard white according to DIN 5033)
Minimum distance between set sensing range and background1 mm at a distance of 50 mm
Recommended sensing range for best performance30 mm ... 80 mm
Light sourcePinPoint LED
Type of lightVisible red light
Shape of light spotLine-shaped, two parallel line-shaped light spots
Light spot size at 50 mm1.2 mm x 17 mm
Squint angle< +/- 1.5° at +23 °C
LED risk group markingFree group
Wavelength635 nm
Average service life100,000 h at Ta = +25 °C
Smallest detectable object typ.1 mm at 50 mm distance
AdjustmentTeach-Turn adjustment
DisplayLED blue, LED green, LED yellow
WeightApprox. 30 g
Maximum tightening torque of the fixing screws0.4 Nm
Enclosure ratingIP66 (EN 60529), IP67 (EN 60529)
Ambient operating temperature-40 °C ... +60 °C
Ambient temperature, storage-40 °C ... +75 °C
Typ. ambient light immunityArtificial light: ≤ 50,000 lx; Sunlight: ≤ 50,000 lx
Connection typeCable, 3-wire

Industrial Applications

1. High-speed part presence detection on conveyor lines

The 7 mm to 120 mm sensing window and background suppression enable reliable detection of parts moving past mixed or reflective backgrounds on packaging and conveyor systems.

Problem Solved

Prevents false switching from background clutter and improves presence detection stability.

background suppression7 mm to 120 mmconveyor sensingvisible red light

2. Small object positioning in assembly cells

The 1 mm smallest detectable object specification and line-shaped beam support detection of small components during placement, feed, or indexing operations.

Problem Solved

Detects tiny parts that standard diffuse sensors may miss or misread.

1 mm MDOPinPoint LEDassembly automationobject detection

3. Washdown-exposed industrial sensing points

IP66/IP67 enclosure protection and -40 °C to +60 °C operation make the sensor suitable for harsh industrial stations where moisture, dust, or temperature variation are present.

Problem Solved

Maintains sensor reliability in wet, dusty, or thermally stressed environments.

IP66IP67harsh environmentindustrial washdowntemperature tolerance
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