The SITRANS LR500 series delivers high‑performance 80 GHz radar level measurement for liquids and solids across a wide range of applications. The series supports safer operations, optimized processes and confident decision‑making in demanding industrial environments with exceptional accuracy, robust diagnostics and advanced signal processing.
Configure and operate devices your way using an intuitive local interface, wireless access via mobile devices, or seamless integration into your control system to reduce setup time and simplify lifecycle management.
Advanced diagnostics, health monitoring and verification tools ensure measurement integrity to enable early issue detection and support maintenance and quality assurance strategies.
High measurement accuracy, low energy consumption and support for safety applications help you meet regulatory, environmental and operational requirements with confidence.
Version | Description | Connection | Temperature |
SITRANS LR510 | Threaded lens antenna for liquids | ¾”, 1”, 1-1/2” connections of 316L or C22 alloy | -40 to 250°C, up to 40 bar, second line of defense option |
SITRANS LR530 | Flanged encapsulated antenna for extreme conditions | 1”/DN25 to 8”/DN250 sizes with integral PTFE lens | -196 to 200°C, up to 25 bar |
SITRANS LR550 | Polymeric horn antenna for solids and liquids | Bracket for ceiling or wall mounting, polymeric flanges from 3”/DN80 to 8”/DN200 | Long range and 3° narrow beam |
SITRANS LR580 | Lens antenna with integrated aiming flange for solids | Flanges from 3”DN80 to 6”/DN150 | Air purge connection included, -40 to 250°C |
Narrow beam angles and high signal sensitivity enable accurate, non‑contact level measurement, even in challenging conditions such as dust, vapors, turbulence or complex vessel geometries.
Process Intelligence adapts in real time to changing conditions using dynamic threshold curves and echo discrimination. It reliably ignores turbulence, agitators and structural echoes to deliver accurate level measurement in challenging liquid and solids applications.
Developed by global Siemens teams, the SITRANS LR500 series underwent extensive mechanical, environmental and accuracy verification before launch. With wide pressure and temperature capabilities, hazardous‑area approvals and verified 1 mm accuracy, the series delivers dependable performance in demanding industrial applications worldwide.
SITRANS LR500 measures distance using 80 GHz radar and converts it into precise level or space measurements. With built‑in tank and silo geometries or customizable strapping tables, it also calculates volume reliably for inventory and process management—independent of pressure, temperature, dust or vapors.
Near Range Suppression continuously detects and removes unwanted echoes close to the antenna caused by material buildup. By preventing false high‑level readings and nuisance alarms, it significantly reduces cleaning, maintenance effort and unplanned downtime.
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