Product Model
WTB4ST-21312120ZZZ
Selling Points
- 1High Sensitivity: Detects objects as small as 1 mm at 70 mm distance.
- 2Background Suppression: Adjustable switching threshold for optimal performance in noisy environments.
- 3Compact Design: Slim dimensions (12.1 mm x 41.9 mm x 18.6 mm) for easy integration.
- 4Reliable Operation: IP66 and IP67 ratings ensure robust performance in harsh conditions.
- 5Long Service Life: Average service life of 100,000 hours at +25°C ambient temperature.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Functional principle | Photoelectric proximity sensor | Functional principle detail | Background suppression, DoubleLine |
Sensing range_Sensing range min. | 0 mm | Sensing range_Sensing range max. | 150 mm |
Sensing range_Adjustable switching threshold for background suppression | 10 mm ... 150 mm | Sensing range_Reference object | Object with 90% remission factor (complies with standard white according to DIN 5033) |
Sensing range_Minimum distance between set sensing range and background (black 6% / white 90%) | 0.8 mm, At 70 mm distance | Sensing range_Recommended sensing range for the best performance | 50 mm ... 90 mm |
Emitted beam_Light source | PinPoint LED | Emitted beam_Type of light | Visible red light |
Emitted beam_Shape of light spot | Line-shaped, two parallel line-shaped light spots | Emitted beam_Light spot size (distance) | 2.5 mm x 16 mm (50 mm) |
Emitted beam_Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle) | < +/- 1.5° (at Ta = +23 °C) | Key LED figures_Normative reference | EN 62471:2008-09 | IEC 62471:2006, modified |
Key LED figures_LED risk group marking | Free group | Key LED figures_Wave length | 635 nm |
Key LED figures_Average service life | 100,000 h at Ta= +25 °C | Smallest detectable object (MDO) typ. | 1 mm (At 70 mm distance) |
Smallest detectable object (MDO) typ. | Object with 90% remission factor (complies with standard white according to DIN 5033) | Adjustment_Teach-Turn adjustment | BluePilot: For setting the sensing range |
Indication_LED blue | BluePilot: sensing range indicator | Indication_LED green | Operating indicatorStatic on: power on |
Indication_LED yellow | Status of received light beamStatic on: object presentStatic off: object not present | Special applications | Detecting flat objects, Detecting objects wrapped in film, Detecting perforated objects, Detecting uneven, shiny objects |
Supply voltage UB | 10 V DC ... 30 V DC | Ripple | ≤ 5 V |
Usage category | DC-12 (According to EN 60947-5-2)#!#DC-13 (According to EN 60947-5-2) | Current consumption | ≤ 20 mA, without load. At U#!#= 24 V |
Protection class | III | Digital output_Number | 1 |
Digital output_Type | Push-pull: PNP/NPN | Digital output_Switching mode | Dark switching |
Digital output_Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V | Digital output_Signal voltage NPN HIGH/LOW | Approx. UB/ < 2.5 V |
Digital output_Output current Imax. | ≤ 100 mA | Digital output_Circuit protection outputs | Reverse polarity protected |
Digital output | Overcurrent protected | Digital output | Short-circuit protected |
Digital output_Response time | ≤ 1,000 µs | Digital output_Repeatability (response time) | 240 µs |
Digital output_Switching frequency | 500 Hz | Pin/Wire assignment_Function of pin 4/black (BK) | Digital output, dark switching, object present → output Ǭ LOW2) |
Housing | Rectangular | Design detail | Slim |
Dimensions (W x H x D) | 12.1 mm x 41.9 mm x 18.6 mm | Connection | Connector M8, 3-pin |
Material_Housing | Plastic, VISTAL® | Material_Front screen | Plastic, PMMA |
Material_Male connector | Plastic, VISTAL® | Maximum tightening torque of the fixing screws | 0.4 Nm |
Specifications may be subject to change without notice