RPI-151

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Optical Sensors - Photointerrupters - Slot Type - Transistor Output, RPI-151 Application Field and Working Principle.

The Reifel RPI-151 is an optically-activated transistor slot type photointerrupter. It is utilized for detecting the presence or absence of an object placed in its sensing area. It can be used for object counting, object positioning, and for checking object movement. RPI-151 is a reliable, accurate and durable photointerrupter, ideal for a wide variety of application fields, including robotics, consumer electronics, optics, printing presses and machine vision.

The RPI-151 sensing head is a semiconductor device composed of an LED emitter, a phototransistor, and an optical filter. The emitter emits an invisible light beam which is interrupted when an object is placed in its sensing area. The phototransistor senses the change in light intensity, and switches off its transistor output. The optical filter restricts the sensing area of the emitter and reduces the optical interference.

The RPI-151\'s emitter operates over the wavelength range of 375 nanometers to 950 nanometers, and has a one-electron resolution of 18 picowatts. The phototransistor has a gain linearity of 6 dB for any input voltage falling within its operating voltage range of 2.5 VDC to 8 VDC. Its collector-emitter saturation voltage is typically 0.20 V.

The RPI-151 has several features that make it ideal for use in a variety of application fields. First, it has a wide operating voltage range, making it ideal for use in environments with varying power sources. Its three-point adjustment allows it to compensate for whatever light conditions it is operating in. And its widely adjustable LED-emitter turn-off speed allows it to operate over a range of sensing distances.

The RPI-151 is also designed for long-term durability. It is made from high-quality dielectric material, with heavy-duty protection against dust, moisture, and other environmental conditions. As a result, it is able to handle long-term use and is resistant to interference from external fields such as vibration and electrical noise.

The RPI-151\'s transistor output allows it to be used with other devices, such as PLCs, counters, and other logic systems. It also has an adjustable LED-emitter turn-off speed, which is ideal for checking object movement and positioning. Additionally, its wide operating voltage range and robust design make it suitable for industrial-grade applications.

In conclusion, the RPI-151 is an optically-activated transistor slot type photointerrupter that is suitable for a wide variety of application fields. Its wide operating voltage range, range of adjustable LED-emitter turn-off speeds, and robust design make it ideal for applications involving object counting, object positioning, and object-movement detection. Its ability to communicate with PLCs and other logic systems adds to its versatility, making it an ideal choice for industrial-grade applications.

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