EE-SX674A

Series:	--
Part Status:	Active
Sensing Distance:	0.197" (5mm)
Sensing Method:	Transmissive
Output Configuration:	NPN - Open Collector
Mounting Type:	Chassis Mount
Current - Supply:	12mA
Voltage - Supply:	5 V ~ 24 V
Response Time:	1ms
Operating Temperature:	-25°C ~ 55°C (TA)
Package / Case:	Module, Connector, Slot Type

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EE-SX674A Application Field and Working Principle

The EE-SX674A is an example of a slot type, logic output optical sensor. This type of sensor is a photointerrupter. Photointerrupters used reflectors and emitters to detect the interruption of a beam of infrared light or visible light. Sensors of this type can be used as simple switches to detect the presence of an object in the sensing area.

Applications

Photointerrupters are applicable to a wide range of sensing purposes. The EE-SX674A is typically used to sense objects or to detect their passage. These could range from coins to paper and sheets of plastics or metals, as well as liquid levels. The EE-SX674A is most often used in applications such as document processing, industrial sensing, vending machines, and security systems. It is also popularly used in the automotive industry to detect luggage compartments, refrigerators, and other equipment need to be triggered and monitored when the car is moving.

Working Principle

The EE-SX674A operates by the interference principle. A visible or infrared light source (emitter) transmits light across a gap or slot separating it from a reflective surface (reflector). When an object passes through the gap, the light is reflected and detected by a photosensitive element. This triggers the output of the sensor in either a normal or inverted logic state, depending on the application. The EE-SX674A features a logic output, meaning that its output is easily interpreted and integrated with logic circuit based systems. Unlike some unsophisticated examples of photointerrupters, the EE-SX674A uses extremely precise lenses to ensure maximum accuracy and stability even in high speed applications. A wide sensitivity range (<1mm) further enhances the sensor’s accuracy and suitability for a wide array of sensing applications. Lastly, the EE-SX674A is designed to be weatherproof and dustproof, making it a suitable choice for many outdoor applications.

Conclusion

The EE-SX674A is a slot type, logic output optical sensor. It is a reliable and robust example of the photointerrupter type, and is suitable for a variety of sensing tasks, specifically document processing, industrial sensing, vending machines, and security systems. This sensor operates by the interference principle and features a wide range of sensitivity. It is dirt and waterproof and therefore suitable for outdoor applications.

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