Leuze AMS 348i 120 H SSI Optical distance sensor

The Leuze AMS 348i 120 H SSI is a compact optical laser distance measurement sensor engineered for precision industrial applications requiring measurements up to 120 meters. This sensor calculates distance to fixed or moving target surfaces using laser propagation time measurement, delivering ±2 mm accuracy and 1.5 mm repeatability (3 sigma) across its full range of 200–120,000 mm. The unit features a Class 2 red laser diode (655 nm, ?4 mW peak output) and is housed in a robust cast zinc/aluminum enclosure with a glass lens cover rated IP65 for harsh industrial environments. Electrical Characteristics & Interfaces: The sensor operates on 18–30 V DC supply, drawing up to 250 mA without heating or 500 mA with integrated temperature control (?30 to +50 °C operational range, extendable to +70 °C with heating). Connectivity is provided via M12 connectors: PROFINET RT (Conformance Class B, 100 Mbit/s) for networked integration and SSI (50–800 kHz clock rate) for direct digital output. Additional M12 connections accommodate power/control and service interfaces. The sensor supports a maximum traverse rate of 10 m/s and features adjustable resolution via its interface protocols. Mechanical & Environmental: Dimensions measure 84 × 166.5 × 159 mm with an approximate weight of 2.45 kg. The membrane keyboard and integrated LC display enable on-site configuration. Operating temperature range spans ?30 to +50 °C (?30 to +70 °C with heating); storage tolerance reaches ?40 to +80 °C. Maximum humidity tolerance is 90% non-condensing. Temperature stability is ±0.1 mm/K with minimal air pressure sensitivity (0.3 ppm/hPa). Typical Applications: Collision protection, precision distance measurement in manufacturing, automated production line positioning, and safety-related distance monitoring in machine automation systems. Documentation - Technical Datasheet — https://www.leuze.com/en-int/ams-348i-120-h-ssi/50127224 - Operating Instructions (AMS 348i SSI) — https://www.leuze.com/en-int/downloads/ams-348i-ssi-operating-instructions - Technical Manual (AMS 348i Series) — https://www.leuze.com/en-int/downloads/ams-348i-technical-manual - PROFINET & SSI Interface Configuration Guide — https://www.leuze.com/en-int/downloads/ams-348i-interface-configuration