OPB822SD

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The OPB822SD is an NPN slot interrupter with a transistor output that can be used in applications such as position sensing, mechanical limit sensing, and presence or absence sensing. It is designed to be mounted with a 4mm or larger hole in the presence of light, as the light will ricochet off of the internal surfaces of the slot and be detected. By passing a light beam through the slot, the OPB822SD will produce a tiny signal current when the light is interrupted.

The inner space of the OPB822SD is composed of a high-luminosity silicon phototransistor which is sensitive to the amount of light intensity. When the slot is interrupted by an object or light, the signal current pin (S) will provide a signal. The output signal is binary; when the light beam is not interrupted, the S output is LOW and when the light beam is interrupted, the output is HIGH. The jack pin (E) is the emitter of the phototransistor; it should be connected to an external load. The OPB822SD is powered by an operating voltage of 10 to 30 VDC, with a single power supply.

The OPB822SD has a 70° angle of incidence and a small housing that makes it useful in tight device installations. Its optical slot axis is perpendicular to the mounting direction so that a high degree of directionality is maintained in the presence of ambient light, helping to reduce interference from other light sources. The transformer output transistor circuit also reduces noise interference caused by the external environment. Additionally, the OPB822SD is available with several different slot widths so it can accommodate various sensing applications.

The OPB822SD is suitable for a wide range of applications such as presence/absence sensors, level sensors, hinge sensors, motion sensors, and more. It can be used in industrial automation, medical equipment, wiring inspections, and other process automation. The OPB822SD is also an excellent choice for automatic sliding door/gate and security systems due to its ease of installation and reliable performance.

In conclusion, the OPB822SD Optical Slot Type Transistor Output Sensor is a reliable and versatile sensor that can be used in a variety of applications in both the home and industrial sectors. It is designed to work with a single power supply and can provide a reliable output signal under a wide range of conditions.

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