Leuze Sensor DMU218-1500/LA-M12 Ultrasonic distance sensor

Description

The DMU218 series uses Time-of-Flight (ToF) technology, measuring the distance to a target regardless of its color, transparency, or surface texture. The LA designation indicates a Linear Analog (Current) output. A 4–20 mA signal is the global industrial standard for reliability because it is highly resistant to electromagnetic interference (EMI) and eliminates the “voltage drop” errors that occur when using long cables.

Features

Industry-Standard M18 Housing: The M18 diameter allows for easy integration using widely available mounting brackets and existing machine apertures.
4–20 mA Analog Output: Provides a stable, noise-immune signal that scales linearly with the measured distance.
Material Independent: Reliably detects “difficult” targets like liquids, clear plastic films, glass, and highly reflective metal components.
Internal Temperature Compensation: Automatically adjusts for changes in the speed of sound caused by air temperature fluctuations, ensuring consistent accuracy over the 1.5-meter span.
IP67 Protection: Fully sealed against dust and water ingress, suitable for high-speed industrial lines or washdown areas.

Specifications

Feature	Specification
Sensing Range	150 mm to 1500 mm
Blind Zone (Dead Band)	0 mm to 150 mm
Output Type	4 – 20 mA Analog Current
Operating Voltage	10 – 30 V DC
Resolution	Approx. 0.2 mm
Housing Material	Nickel-plated brass / PBT
Connection	M12, 4-pin or 5-pin male

Applications

Medium Tank Level: Monitoring the fill height of chemical totes, water reservoirs, or small hoppers.
Roll Diameter Measurement: Tracking the size of paper, foil, or textile rolls to control winding tension.
Loop Control: Monitoring the depth of a material loop in web-processing machinery to synchronize motor speeds.
Stack Height Control: Providing precise feedback on the height of stacked materials for automated palletizing or assembly.
Wastewater Management: Measuring fluid levels in open sumps or small channels without contacting corrosive media.