E3T-SR43 5M

Optical Sensors are a device used to detect the presence of desired objects by using its emitted or reflected light. Photoelectric, Industrial sensors are one type of optical sensing, these sensors are usually employed to detect movement, positions and objects. The E3T-SR43 5M is a Photoelectric switch belonging to this category, this article will discuss its application field as well as its working principle.

The most common applications for the E3T-SR43 5M are errorproofing, machine protection and detection. In the industrial field, this device is usually employed for production line machines that requires precise operation, from detecting pre-determined positions from controlled motion systems to safety applications like detecting the position and movements of parts and components.

The device output is digital, so it can be connected to PLC, allowing for complex networking. It is composed of 4 main components: a solid state switch module, a light emitting diode, an optical receiver and a wiring connection. With this components an optical beam is projected from the emitting diode reaching the optical receiver, when the beam is interrupted a contact switch will close the circuit, depending on the model E3T-SR43 5M can offer either normally open or normally closed output.

The device is easy to install and easy to use, it operates on a supply voltage that ranges from 10.8 to 30VDC and offers a On-Delay of 3/20 secs. This device can detect a beam interruption or reflectance of a target object within the 1-5m operational range. It also is capable of rejecting ambient light, which is suitable for installation in smaller machine and in production lines or locations that are illuminated by normal room light.

In conclusion, the E3T-SR43 5M is a Photoelectric switch, widely used in the industrial field for countinous object detection. This sensor offers a digital output and operates on a voltage from 10.8 to 30VDC, plus it can detect a beam interruption or reflectance of a target object within the 1-5m operational range which makes it ideal for error-proofing, machine protection and detection.