Fargo Controls, Inc. Fork Shape DC Photoelectric Sensor S4390

The S4390 is a fork-shaped, DC-operated photoelectric sensor with a nickel-plated brass housing and a 13 mm fork gap, designed to detect non-transparent and translucent materials. It features an infrared light source, operates on a 10-30 Vdc supply, and has a maximum switching current of 200 mA with a voltage drop of less than 1.5 V at full load. The sensor provides a normally open NPN output, has a switching frequency of 500 Hz, and includes short circuit and reverse polarity protection. It is rated IP67 for dust tightness and immersion resistance, with an operating temperature range of -25 to +50 °C and light immunity up to 10,000 Lux from sunlight and 3,000 Lux from incandescent lamps. The unit includes an LED function indicator, sensitivity adjustment, and comes with a 2-meter PVC cable.