SH-21

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Optical sensors are widely used in many industries in order to detect the presence, absence, or position of an object in an application. One type of optical sensor is the SH-21, which is an industrial optical sensor used to detect the position of an object. The optical alignments provided by the SH-21 makes it one of the best solutions for many industrial applications.

The SH-21 consists of an emitter (transmitter) unit and a receiver (detector) unit, which are typically mounted on either side of the object being detected. The emitter unit is composed of an LED emitting an infrared light beam, while the receiver unit contains a photo-detector, which senses the presence or absence of the light beam.

The operating principle of the SH-21 is based on the interruption of the light beam from the emitter to the receiver unit, as soon as an object is detected. The object must be positioned between the two units, and when the light beam is interrupted the receiver unit senses it and triggers a signal. This signal can be used to generate a relay output, or can be connected to a PLC system to provide process control or monitoring.

Due to its simple operating principle, the SH-21 is an ideal solution for many industrial sensors applications. It is mainly used as a limit switch, proximity switch, and photoelectric switch. It is also used as a presence sensor or object detector.

In limit switch applications, the SH-21 is used to detect the position of a detected object, when the light beam is interrupted the relay output is triggered. This output can be used to stop or start the process, or can be used as a safety feature.

In proximities switch applications, the SH-21 is used to detect the presence of an object, when the light beam is interrupted the relay output is activated. This output can be used to start or stop a process, or to act as an alarm in case of an emergency.

In photoelectric switch applications, the SH-21 is used to detect the presence of an object, when the light beam is interrupted the relay output is activated. This output can be used to start or stop a process, or to act as an indicator to indicate the presence of the detected object.

The SH-21 is also used as an object detector in applications where the exact position of an object needs to be detected. The SH-21’s ability to detect the object in three dimensions makes it an ideal solution for this type of applications.

The SH-21 is also used for position sensing applications, as it can be used to detect the exact position of an object. The SH-21’s sensitive optical alignments make it ideal for this type of applications, as it can detect the position of the object accurately.

The SH-21 is an ideal solution for many industrial applications, due to its simple operating principle, and its ability to provide accurate results. It is easy to install and maintain, and its different operating parameters make it suitable for many different applications.

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