WFM Series, Photointerrupters - Slot Type - Transistor Output

Transistor output slot type photointerrupters are optical sensor modules that combine an infrared light source and a photodiode, separated by an air gap or slot. These devices are designed to detect the presence or absence of an actuator, liquid, or other objects by blocking the light source. When an object interrupts the light beam passing through the slot, the photodiode detects the change in light intensity and triggers an output transistor. This transistor then switches on or off, resulting in a toggled voltage or binary signal indicating the presence or absence of the object. These photointerrupters are available in various mounting options to suit different application requirements. The options include chassis mounting, snap-in mounting, surface mounting, free-hanging mounting, and through-hole mounting. Chassis mounting allows for secure attachment of the photointerrupter module to a chassis or panel, ensuring stability during operation. Snap-in mounting offers a convenient and quick installation process, eliminating the need for additional fasteners. Surface mounting enables the direct placement of the sensor module onto a circuit board or other flat surfaces. Free-hanging mounting allows for flexible positioning of the photointerrupter in the desired location. Through-hole mounting involves inserting the leads of the photointerrupter into pre-drilled holes on a PCB and soldering them into place. These transistor output slot type photointerrupters are commonly used in various applications, including industrial automation, robotics, vending machines, printing equipment, and security systems. They provide a reliable and accurate means of detecting the presence or absence of objects, contributing to efficient and precise operation in these applications.