Banner SM312FP Photoelectric Switch Sensor 10-30 V dc 2 m Cable IP67

Compact Industrial Sensor

The Banner SM312FP is a rectangular photoelectric switch built for discrete detection tasks on machinery and conveyors. It operates on a 10-30 V dc supply and provides both NPN and PNP outputs from a single four-pin cable. The thermoplastic housing carries an IP67 rating and meets multiple NEMA standards for harsh environments. This unit suits engineers who need a reliable presence sensor with bipolar flexibility.

Integration Requirements

A 2 m (6.5 ft) cable is permanently attached, so no separate connector is required; the four conductors carry power, ground and the two output signals. The sensor accepts plastic or glass fiber optics, letting the installer route the sensing tip into tight spaces while the amplifier stays accessible. Potentiometer adjustment and a 100 ms power-up delay simplify commissioning without a teach function. Buyers who need a quick-disconnect fitting or IO-Link communication will not find those features here.

Sustained Operation Behaviour

The amplifier repeats within 300 µs and responds in 1 ms, giving consistent switching during continuous production cycles. Operating limits span -20 °C to 70 °C with up to 90 % relative humidity at 50 °C, so performance remains stable through shift-long thermal swings. Red indicator LEDs provide constant visual confirmation of output state without audible alarms. The housing contains no timing or hold/delay functions, so output follows the target without added latency.