Overview
The ifm LR3000 continuous level sensor delivers reliable, non-contact liquid level measurement using guided wave radar technology. The LR3000 electronic level sensor from ifm with protection rating IP67 operates to the principle of guided wave radar. This modular sensor is designed for industrial level monitoring in tanks, reservoirs, and process containers where precision and durability matter.
Key Features
- The housing can be rotated by 360° and the rod length of L = 100-1,600 mm can be cut, if required.
- The unit has one programmable switching output and one analog output (4-20 mA or 0-10 V).
- The LR3000 level sensor can be easily operated via the user menu and the current level is directly indicated via LED display.
- The sensor is suitable for continuous level monitoring in almost all liquids.
- The LR3000 level sensor with M12 connector and process connection G 3/4 male is ideal for level monitoring of hydrous media, coolants, cleaning agents and oils in machine and plant construction.
- Reverse polarity protection and short-circuit/overload protection built-in
Technical Specifications
- Measuring Principle: Guided wave radar
- Operating Voltage: 18–30 V DC
- Probe Length: 100–1,600 mm (field-cuttable)
- Process Connection: G 3/4 male threaded
- Electrical Connector: M12 A-coded male
- Switching Output: 1 programmable, 200 mA max, PNP
- Analog Output Options: 4–20 mA (scalable) or 0–10 V (scalable)
- Repeatability: ±5 mm
- Protection Rating: IP67
- Operating Temperature: 0–60 °C
- Material Temperature Range: –25 to 80 °C
- Max. Operating Pressure: 163 m H₂O
- Current Consumption: <80 mA
- Weight: 436 g
- Protection Class: III
Typical Applications
The ifm LR3000 level sensor excels in machine and plant environments where continuous, accurate level monitoring is critical. Common applications include:
- Hydraulic fluid and coolant tank level monitoring
- Industrial cleaning agent and detergent storage tanks
- Mineral oil and fuel level control
- Water and wastewater level measurement
- Food and beverage processing tanks
- Chemical process tanks and reactors
Compatibility & Replacements
Compatible With
- Industrial PLC systems (Allen-Bradley, Siemens, Mitsubishi, Omron)
- 4-20 mA analog input modules and data acquisition systems
- 0-10 V analog controller interfaces
- PNP-input control circuits and industrial controllers
- IP67-rated industrial automation environments
- M12 A-coded connector standard automation equipment
Replaces / Drop-In Replacement For
The LR3000 is part of ifm’s LR guided wave radar sensor family. Verify compatibility with your system integrator before ordering alternative configurations or similar models.
Works With
- Analog input modules with 4-20 mA or 0-10 V capability
- IO-Link compatible controllers and gateways (where supported)
- Standard industrial programmable logic controllers (PLCs)
- SCADA and process control software accepting analog sensor input
- Panel-mount displays and data logging systems




