H21LOB

Series:	OPTOLOGIC®
Part Status:	Obsolete
Sensing Distance:	0.124" (3.15mm)
Sensing Method:	Transmissive
Output Configuration:	NPN - Open Collector, Buffer
Mounting Type:	Through Hole, Flange
Current - Supply:	5mA
Voltage - Supply:	4 V ~ 16 V
Response Time:	100ns
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	Slotted, PC Pins

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Optical sensors are an important class of sensors used in a variety of applications to detect changes in light or the presence of light. In the realm of industrial automation, optical sensors are used in the processing industry, automotive industry, and in robotics applications. One type of optical sensor, the slot type H21LOB, works by detecting the difference between light and darkness when a beam of light passes between the two slots. The H21LOB includes a light source and a device to detect the interruption of the light, such as a photodiode or a phototransistor.When the light passes between the two slots, the detector senses a change in light intensity and sends out a logic signal that can be used to control a process. This logic signal is commonly used as an indication that an object has crossed a boundary, or as a feedback signal to measure the speed of an object. In addition, this type of sensor can be used for counting applications such as counting objects or sensing the position of an object.The H21LOB works by sending an infrared light beam between two slots in the sensor body. In between the two slots is a light-sensitive detector which detects the interruption of the beam. The H21LOB has a detection distance of up to 100mm and offers an adjustable slot width of 0.1mm to 20mm. The logic output signal can be adjusted to either NPN or PNP type output, giving the user flexibility in designing the detection system.The design of the H21LOB is versatile and suitable for a wide variety of applications. The sensor can be used to detect objects in automated equipment, detect movement in conveyor belts, or even act as a limit switch in an industrial system. Furthermore, the H21LOB can be used for determining the speed of an object and for counting objects. In addition, the H21LOB can be used in scanning applications where information is gathered as an object passes through the two slots.For applications where the detection system needs to be installed in a harsh environment, the H21LOB is the ideal choice. The sturdy design can withstand temperatures ranging from -25°C to +70°C and is IP67-rated, which means it is highly resistant to dust and water. In addition, the sensor can be operated in a wide range of voltage and can work on either AC or DC power. The H21LOB is also certified with CE and UL, making it suitable for a variety of international standards.The sensing range of the H21LOB is only one of the advantages of the sensor. The adjustment of the logic output and the option to either choose a NPN or PNP signal output gives the user the flexibility to design a tailored detection or sensing system that is optimized for a specific application. Furthermore, the sensor can be used in either manual or automated operation, making it suitable for a wide range of applications.To sum up, the H21LOB is a highly versatile slot-type optical sensor that can be used for a wide range of applications. Its two slots are equipped with a light-sensitive detector to detect the interruption of an infrared beam of light, and the logic output signal is adjustable to NPN or PNP type output. Furthermore, the sturdy design allows the sensor to operate in harsh environments, and its versatility is perfect for operating in both manual and automated systems.

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