Leuze Sensor DMU420B-500.3/LV-M8 Ultrasonic distance sensor

Description

The “DMU” series utilizes ultrasonic Time-of-Flight (ToF) technology, making it immune to target characteristics like color, transparency, or high-gloss finishes. The LV designation signifies a Linear Voltage output, which scales the measured distance into a proportional voltage signal. This is ideal for applications requiring feedback on “how far” rather than just “is it there.”

Features

Analog Precision: Provides a 0–10 V DC output signal that corresponds to the target’s position within the sensing range.
Material Independent: Reliably detects clear glass, liquids, dark plastics, and multi-colored surfaces that often “blind” optical sensors.
Compact M12 Housing: The small diameter allows for installation in tight mechanical assemblies or dense sensor arrays.
High Resolution: Capable of detecting minute changes in distance, typically down to 0.1 mm or better depending on the controller’s resolution.
IP67 Protection: Fully sealed against dust and water ingress, suitable for washdown environments.

Specifications

Feature	Specification
Sensing Range	30 mm to 500 mm
Blind Zone (Dead Band)	0 mm to 30 mm
Output Type	0 – 10 V Analog
Operating Voltage	15 – 30 V DC
Resolution	Approx. 0.1 mm
Response Time	< 50 ms
Housing Material	Nickel-plated brass / PBT
Connection	M8, 3-pin or 4-pin male

Applications

Tension/Loop Control: Monitoring the “sag” of a material web (foil, paper, textile) to adjust motor speed.
Fluid Level Measurement: Providing a constant 0–10V signal to represent the fill level of a small tank or container.
Diameter Measurement: Measuring the decreasing size of a supply roll to predict when it will run out.
Positioning: Providing feedback for the height of a lift table or the extension of a pneumatic cylinder.
Quality Control: Checking for the presence and correct height of components on an assembly line.