The IFM LR8020 is a guided wave radar level sensor for continuous level measurement in industrial tanks. It uses a modular probe concept that allows the probe length to be adapted to vessel dimensions. The sensor provides digital switching and IO-Link communication for automated level control. Its stainless-steel construction and high protection rating support demanding industrial environments. The LR8020 is particularly suitable for water, oils, coolants, and similar liquids.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The LR8020 measures liquid level continuously along the installed probe. Its guided wave radar principle provides stable level detection. The probe can be adapted to the required tank height. The measurement is available through the sensor outputs and IO-Link. This supports automatic filling and emptying control.
The sensor provides two digital outputs with programmable switching functions. Outputs can be configured for normally open or normally closed operation. Switching parameters can be adjusted to suit the required level points. The sensor supports a 200 mA switching output. Integrated protection improves reliability in control cabinets and field installations.
The LR8020 is designed for demanding industrial environments. Its protection rating reaches IP68 and IP69K under the specified conditions. The operating temperature range extends from -25 to 60 °C. The sensor also provides defined shock and vibration resistance. This makes it suitable for tanks and process equipment requiring robust level sensing.
Guided wave radar
Probe-based level measurement
Two digital outputs
PNP/NPN switching
NO/NC programmable
200 mA output current
1 mm measurement resolution
IO-Link 1.1
COM2 communication
SIO mode
IP68 protection
IP69K protection
18...30 V DC
Short-circuit protection
Overload protection
Water tanks
Coolant tanks
Oil tanks
Process vessels
Storage tanks
Filling systems
Emptying systems
Pump control
Industrial automation
Liquid level monitoring
The LR8020 provides continuous measurement rather than simple point-level detection. The probe design allows installation in vessels of different heights. Digital switching outputs can be used for automatic level limits. IO-Link adds access to process values and diagnostics. This supports efficient automated tank management.
The high IP rating supports installations exposed to water and cleaning processes. The sensor is designed for industrial temperature and vibration conditions. Stainless-steel construction provides durable mechanical protection. Its guided probe provides a defined measurement path. These features make it suitable for industrial liquid-level monitoring.
| Specification | LR8020 |
|---|---|
| Product Type | Continuous level sensor |
| Model | LR8020 |
| Measuring Principle | Guided wave radar |
| Probe Type | Rod probe |
| Probe Length | Up to 2000 mm |
| Active Measurement | Probe-based |
| Output Count | 2 digital |
| Output Signal | Switching + IO-Link |
| Electrical Design | PNP/NPN |
| Output Function | NO/NC programmable |
| Maximum Output Current | 200 mA |
| Voltage Drop | 2.5 V |
| Short-Circuit Protection | Yes |
| Overload Protection | Yes |
| Supply Voltage | 18...30 V DC |
| Protection Class | III |
| Reverse Polarity | Yes |
| Power-on Delay | <3 s |
| Communication | IO-Link |
| IO-Link Revision | 1.1 |
| SIO Mode | Yes |
| IO-Link Profile | Smart Sensor SSP 3.1 |
| SDCI Standard | IEC 61131-9 |
| Protection Rating | IP68 |
| Additional Protection | IP69K |
| Ambient Temperature | -25...60 °C |
| Extended Temperature | -40...85 °C |
| Shock Resistance | 50 g / 11 ms |
| Vibration Resistance | 5 g / 10...2000 Hz |
| M12 Connection | Yes |
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