PH18CNT20PAM1SA Sensors, Transducers

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Optical sensors are widely used in various industrial and commercial applications. Photoelectric sensors, for example, leverage infrared (IR) or laser emitter and detector pairs to accurately measure and interpret changes in the distance between objects. PH18CNT20PAM1SA is a type of photoelectric sensor suited for harsh environment applications, such as packaging, automotive, and steel industry. It is also suitable for the detection of small objects, such as washers, nuts, caps, and rivets.

The PH18CNT20PAM1SA is a photosensitive device that responds to low-level infrared light. It features a built-in two-color infrared LED and a dual optical detector. The IR LED emits an infrared light beam at 940nm and 850nm. These visible light wavelengths are invisible to the human eye, so they allow accurate measurements even in ambient light. The two sensors measure the energy reflected off the target object and converts it into a voltage proportional to the reflected energy. With the two separate wavelengths of infrared light, the device can detect objects using two methods: transmit and receive or through-beam.

The transmit and receive mode involves illuminating the target object with the infrared light, and then measuring the reflected light with both sensors. The through-beam mode uses a single transmitter and detector, and the sensor measures the break of the light beam when an object passes between the transmitter and the detector. This allows the sensor to accurately detect small and fast-moving objects.

The PH18CNT20PAM1SA features a wide range of adjustable settings, including an adjustable sensitivity and response time. The sensitivity of the sensor can be adjusted by varying the current to the LED, and the response time can be adjusted by changing the voltage applied to the detector. The device includes over-voltage protection, short circuit protection, and thermal shutdown protection.

Typical applications of the PH18CNT20PAM1SA include sensing small items such as washers, nuts, and rivets, as well as detecting the presence of objects moving at high speed. It can be used in the automotive, packaging, metal forming and fastener, and electronics industries for measuring presence or absence, speed and position, and turbulence detection.

In summary, the PH18CNT20PAM1SA is a versatile photoelectric sensor designed for demanding applications. Its two-color infrared LED and dual optical detector makes it suitable for both transmit and receive and through-beam operation, while its adjustable settings make it possible to tailor the sensor to the application. This makes it the ideal solution for a wide range of industrial and commercial applications.

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