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WTT190L-N1131

The SICK WTT190L-N1131 is a compact, self-contained photoelectric sensor designed for reliable object detection through through-beam sensing. This model is part of the emitter unit in a through-beam pair, meaning it emits a constant beam of modulated infrared light.

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Key Parameters
Parameter Specification Notes
General Data
Article Number WTT190L-N1131 "T" in WTT denotes Transmitter (Emitter)
Sensor Type Photoelectric Sensor, Through-Beam Emitter Must be used with a Receiver unit
Electrical Data
Operating Voltage 10 ... 30 V DC
No-Load Supply Current ≤ 35 mA
Output N/A (Emitter only) This unit has no switching output. It only emits light.
Optical Data
Light Source Infrared light (modulated) 880 nm (invisible to the human eye)
Light Spot Diameter Approx. 16 mm at 2 m
Sensing Range
Maximum Theoretical Range Up to 15 meters The effective range depends on the size and alignment with the receiver.
Alignment Critical Must be precisely aligned with the corresponding receiver.
Switching Frequency
Modulation Frequency 2.5 kHz
Mechanical Data
Housing Material Plastic (PBT)
Protection Rating IP67 Dust-tight and protected against temporary immersion
Connection Fixed cable, 2 m
Cable Type PVC, 2 x 0.25 mm² Typically 2 wires: Brown (24V DC), Blue (0V DC)
Environmental Conditions
Operating Temperature -25 °C ... +55 °C
Storage Temperature -40 °C ... +70 °C
Approvals
Standards CE, cULus Complies with relevant EU and North American standards