Leuze Sensor DMU420B-1000.3/LV-M8 Ultrasonic distance sensor

Description

The Leuze Sensor DMU420B-1000.3/LV-M8 is an advanced ultrasonic sensor engineered for versatile and accurate distance measurement and object detection. Utilizing high-frequency sound waves, it delivers reliable performance independent of target color, reflectivity, or transparency, making it suitable for challenging detection tasks. The sensor’s compact, cylindrical M8 threaded metal housing is built for durability, offering high resistance to shock, vibration, and environmental contaminants with an IP67 rating. It integrates an M8 connector for quick installation and maintenance. With features like a precise 1000 mm range, configurable analog and switching outputs, and a robust design, this sensor is a dependable solution for precise positioning, level monitoring, and process control in automated systems.

Specifications

Model: DMU420B-1000.3/LV-M8
Technology: Ultrasonic (piezoelectric transducer)
Measuring Range: 30 mm to 1000 mm
Accuracy: Typically ±0.5% of measured value or ±2 mm (whichever is greater under standard conditions)
Resolution: 0.1 mm
Response Time: Configurable, typically from 25 ms
Outputs: 1x analog output (selectable: 0-10 V or 4-20 mA) and 1x switching output (PNP, NO/NC configurable)
Connection: 4-pin M8 male connector
Housing: Stainless steel (V4A / AISI 316), M8 x 1 thread
Protection Rating: IP67
Supply Voltage: 10-30 V DC
Operating Temperature: -25°C to +70°C
Acoustic Frequency: ~ 400 kHz
Beam Angle: Approx. 5° (very narrow beam for precise targeting)
Housing Length: 40.3 mm (excluding connector)

Features

Compact M8 Stainless Steel Housing: The small, robust V4A stainless steel housing is ideal for space-constrained installations and offers excellent corrosion resistance.
Dual Configurable Outputs: Combines a precise analog output for continuous distance measurement with a programmable switching output for limit value monitoring, providing maximum application flexibility.
High Immunity to Environmental Factors: Features advanced signal processing algorithms to compensate for background acoustic noise, temperature drift, and varying air pressure, ensuring stable readings.
Push-Button Teach-In & IO-Link (Optional): Allows for simple, tool-free configuration of switching points and parameters. An IO-Link version enables digital parameterization, diagnostics, and process data integration into Industry 4.0 systems.
Narrow, Focused Sound Beam: The very small beam angle minimizes side lobe effects, allowing for precise detection of small objects and reliable operation in confined spaces with complex backgrounds.
Material-Independent Detection: Consistently measures distance to objects made of glass, liquid, metal, plastic, or wood, irrespective of color or surface finish.

Applications

Precision Positioning: End position detection, height control, and precise distance feedback for grippers, slides, and lifting axes in robotics and assembly.
Liquid Level Monitoring: Contactless level measurement of water, chemicals, oils, or aggressive media in small tanks, vessels, and containers.
Small Part Detection & Counting: Reliable detection and presence verification of small components, pills, or electronic parts on high-speed conveyors or in vibration bowls.
Roll Diameter & Loop Control: Monitoring the decreasing diameter of wire, cable, or film rolls, and controlling material loops in winding/unwinding stations.
Machine Guarding & Access Control: Used as a non-contact safety device for detecting the open/closed status of guards, doors, or hatches on machinery.