SICK FFUS10-1N1IO Flow Sensor

FFUS10-1N1IO is a SICK ultrasonic flow sensor designed for liquids with a DN 10 measuring tube. It measures flow in the range of 0.3 to 21 L/min, with a stated accuracy of ±2% of the measured value plus ±0.15% of the end value, and a repeatability of ≤0.5%. The device operates from 18 to 30 V DC (max 180 mA) with ripple ≤5 Vss, and includes an integrated display and analog current outputs for flow and temperature signals (4-20 mA for flow, and 0-20 mA for temperature). It provides two pulse/status outputs (PNP/NPN) and one switching input for dosing and counter reset, enabling flow monitoring and control tasks. The measurement path has an inlet run of 10 cm and an outlet run of 0 cm. It supports liquids from 0 °C to +80 °C, and process pressure up to 16 bar. Liquids can be conductive or non-conductive, as the sensor specifies no conductivity limitation. All electrical connections include reverse polarity protection, and the outputs are protected against overload and short-circuiting. With ultrasonic transit-time measurement, FFUS10-1N1IO delivers inline flow data suitable for dosing applications and real-time flow monitoring in compact 10 mm tube configurations.