Fargo Controls, Inc. 30mm Diameter DC 3/4 Wire "Short Series" Proximity Sensor S3131

The S3131 is a 30 mm diameter DC 3/4 wire inductive proximity sensor with NPN normally closed output, designed for industrial detection applications. It features a nickel-plated brass case, flush mounting, and IP67 protection against dust and immersion. Operating from 10 to 30 Vdc, it supports a maximum switching current of 200 mA with a voltage drop under 1.8 V when ON. The sensing distance is 15 mm, with an operating frequency of 200 Hz, repeatability within ±3% of Sn, and hysteresis under 10%. The sensor includes short circuit and reverse polarity protection, an LED status indicator, and a standard 2 m PVC cable output. An operating temperature range of -25 to +70 °C is specified, with a +100 °C version available upon request.