Leuze Sensor DMU330-3500.3/4VK-M12 Ultrasonic distance sensor

Description

The DMU330-3500.3/4VK-M12 utilizes advanced Time-of-Flight (ToF) technology, emitting high-frequency ultrasonic pulses and calculating the micro-interval required for the echo to return from a target. Because the measurement relies on sound waves rather than light, the sensor is completely immune to the optical properties of the target—making it the ideal solution for detecting transparent glass, clear liquids, highly reflective metal surfaces, or dark, light-absorbing plastics.

The “4VK” configuration is particularly versatile; it provides a high-resolution 0–10 V analog signal for real-time distance tracking, while the integrated IO-Link 1.1 protocol allows for remote parameter setting (teaching), streaming of digital distance values, and “Smart Sensor” health monitoring to predict maintenance needs before a failure occurs.

Features

Hybrid Connectivity: Offers a 0–10 V DC analog voltage output for traditional control loops and IO-Link for digital data exchange and remote configuration.
Extended 3.5-Meter Range: The powerful transducer enables stable measurement over significant distances, allowing the sensor to be mounted safely away from moving machinery or caustic chemical vapors.
M30 Robust Housing: The large-diameter nickel-plated brass housing provides superior mechanical stability and the surface area required for high-power acoustic emission.
Internal Temperature Compensation: Automatically adjusts the distance calculation to account for variations in the speed of sound caused by air temperature fluctuations, maintaining a high accuracy of ±1%.
IP67 Environmental Rating: Fully sealed against dust and water ingress, making it suitable for high-humidity environments, washdown areas, and outdoor storage applications.

Specifications

Feature	Specification
Sensing Range	350 mm to 3500 mm
Blind Zone (Dead Band)	0 mm to 350 mm
Output Type	0 – 10 V Analog Voltage + IO-Link
Operating Voltage	18 – 30 V DC (required for IO-Link functionality)
Resolution	Approx. 0.1 mm (via IO-Link) / 12-bit (Analog)
Accuracy	$pm 1%$ of measured value
Housing Material	Nickel-plated brass / PBT
Connection	M12, 5-pin male connector

Applications

Intermediate Bulk Container (IBC) Level: Continuous tracking of liquid or granulate levels in large chemical totes or water tanks.
Large Roll Diameter Monitoring: Measuring the outer diameter of paper, steel, or textile coils to control winding tension and signal roll changes.
Positioning of Heavy Machinery: Providing distance feedback for the height of large lift tables, scissor lifts, or hydraulic platforms.
Loop Control in Web Processing: Monitoring the depth of material loops in metal or textile processing to synchronize motor speeds.
Pallet Height Management: Ensuring consistent height for palletized goods or large processed components in automated storage and retrieval systems (ASRS).