70156-2355

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Optical sensors are ubiquitous in industry due to their exceptional performance, versatility, and cost-effectiveness. The 70156-2355 is a photoelectric sensor and, along with other optical sensors, can be used to detect a range of objects, materials, and physical conditions within a work environment. This article will explain the application field and working principle of the 70156-2355.

Applications of the 70156-2355

The 70156-2355 is a versatile photoelectric sensor that can be used for a range of applications including automation, process control, and material handling. The sensor can be used in hazardous environments as it is intrinsically safe and has a sturdy housing which is suitable for use in wet and dusty locations. It is also suitable for vibration-prone applications as it has a built-in shock absorber. Additionally, the sensors are able to work in a wide range of temperatures with a range coverage of -23 to 131℉ (-30 to 55°C) without any risk of corrosion or failure.

The 70156-2355 is commonly used in applications such as machine safety barriers, web edge guidance, and distance measurement. The sensor is widely used in fire and gas detection systems, level indicators, fluid level switches, and other process monitoring applications. It can also be used for authentication purposes, where it is able to detect the presence of certain key tags such as RFID tags.

Working Principle of the 70156-2355

The 70156-2355 works on the principle of photoelectric sensing. It is equipped with an infrared LED and an accompanying receiver which is capable of detecting the infrared light. The sensor works by first emitting a beam of infrared light and then detecting the light which is reflected off the object it has been aimed at. In automated systems, an I/O interface card is used to route the data output from the sensor to the controller or microprocessor.

The sensor is designed to operate using a four-wire connection. This connection is used to send power to the LED, receive the output signal from the receiver, and also send information to the control system. The power from the LED is connected to the receiver via a transmission line. When an object is sensed, the receiver detects the change in the intensity of the light and sends a corresponding voltage back to the system.

The 70156-2355 is designed to operate in three modes of operation, which are normally open, normally closed, and light/dark sensing. In the normally open mode, the sensor emits a beam of light when the object is detected, and when the object is removed, the beam is turned off. In the normally closed mode, the beam is turned on when the object is not detected and off when it is detected.

The light/dark sensing mode of operation is used when the presence or absence of an object needs to be determined. The LED emits a beam of light which is then detected by the receiver. Depending on the light level detected by the receiver, a corresponding output is sent to the control system.

Conclusion

The 70156-2355 is a versatile optical sensor which can be used for a range of applications in the industrial arena. It works on the principle of photoelectric sensing, where an infrared LED is used to detect objects which pass through its beam. The sensor is able to work in a wide range of temperatures and is also equipped with a shock absorber which makes it suitable for vibration-prone applications. Additionally, the sensor is also able to work in three modes of operation, which include normally open, normally closed, and light/dark sensing.

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