WTB4-3P2161S28

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Optical Sensors are composed of a light emitter and a light receiver, which cooperates with a control circuit for light collection and data processing. WTB4-3P2161S28 is one type of optical sensor often used in industrial applications.

WTB4-3P2161S28 Introduction

WTB4-3P2161S28 is a robust and reliable photoelectric prox sensor with a distance of 2 meters. It consist of an infrared emitting diode,which emit 660nm laser light, and a light phototransistor, which is used to detect the reflected light. This optical sensor is also equipped with a potentiometer, allowing for fine-tuning the sensitivity. With a built-in LED indicator, WTB4-3P2161S28 enables monitoring of operating state without dissecting the device.

WTB4-3P2161S28 Application Field & Working Principle

WTB4-3P2161S28 is widely used in industrial applications, such as object detection, machine automation, material level detection, and liquid level detection, etc. The working principle of WTB4-3P2161S28 is simple yet effective – when the infrared laser light emitted by emitting diode gets reflected by the target and collected by phototransistor, signal voltage changes, which is then processed by a controlling circuit and interpreted.

When there is no presence of target in front of sensor, the emitted light will be reflected back to the sensor evenly, resulting in lower signal voltage. When the target block the light, the signal voltage will be higher than before. If the signal voltage is above the adjustable threshold, it will be interpreted as a detection of the target. The amount of signal change depends on the distance between the object and the sensor, making it easier for WTB4-3P2161S28 to easily detect the presence of objects up to two meters away.

Moreover, since the distance between the object and the sensor is two meters and the sensors have an adjustable angle, WTB4-3P2161S18 can easily detect objects at wider distances. By rotating the sensor mounting bracket, users can adjust the light path of the light emitted diode to cover more area. This makes the WTB4-3P2161S18 more suitable for industrial applications.

In terms of reliability, WTB4-3P2161S18 has a strong operational life. The emitted wavelength is stable throughout the whole lifetime of the product while the temperature range of operation is from -20℃ to +70℃. Furthermore, the product is fully sealed, ensuring it will not be affected by dust, moisture or any other external influence.

Conclusion

In conclusion, WTB4-3P2161S18 is an excellent photoelectric prox sensor for industrial applications. It has a wide detection range and adjustable angle. More importantly, it is robust and reliable and has a long service life. With all these features, WTB4-3P2161S18 excels in field detection compared to other similar products.

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