SITRANS LR100 80 GHz radar level measurement transmitters

SITRANS LR100 series — compact 80 GHz radar transmitters for liquid or solid level measurement with Bluetooth for quick setup and a narrow beam.5

SITRANS LR100 series — compact 80 GHz radar transmitters for liquid or solid level measurement with Bluetooth for quick setup and a narrow beam.

SITRANS LT500 is an advanced level, flow and pump controller working with radar and ultrasonic transmitters and any 2-wire 4–20 mA device with multiple options.

SITRANS mobile IQ is a free app for easy access to your field devices. Commission, parameterize and monitor instrumentation via Bluetooth.

Designed to reduce commissioning effort and long-term maintenance, the SITRANS LR100 series supports safer, more reliable level measurement in demanding environments. Five models cover basic to advanced requirements, combining high signal sensitivity, stable performance and portfolio flexibility to match your application and budget.

Enable fast commissioning using Bluetooth wireless technology and the Siemens SITRANS mobile IQ App. Configure, monitor and adjust devices quickly from a mobile device, reducing on-site effort and time spent in hazardous areas.

Adapt installations easily with a compact design and narrow 80 GHz beam. Fits existing vessel openings, avoids obstructions, and supports non-intrusive mounting through plastic vessels to simplify installation and commissioning.

Capture accurate level data with an extremely sensitive custom radar microchip for reliable measurements. Measure up to the sensor with zero blanking and 2 mm accuracy, and enable digitalization via HART 7 or optional Modbus RTU.

For short distances with a cable; basic 4–20 mA; range to 10 m

HART or Modbus communication; hazardous approval options; range to 20 m

HART or Modbus communication; optional submergence shield for flooding protection; longest range to 30 m

For short distances; for basic measurements; range to 10 m with terminal connection

Local HMI; with HART communication, hazardous approvals; range to 20 m

Condensation can affect level measurement, but SITRANS LR100 overcomes it. With extreme radar sensitivity and intuitive setup using the SITRANS mobile IQ app, the transmitter continues to deliver accurate, reliable readings in harsh, moisture‑heavy environments.

SITRANS LR100 enables long‑term operation in remote applications by combining very low power consumption with fast power‑up, minimizing battery drain and making it ideal for self‑powered and solar installations.

Uses a submergence shield to protect the sensor during flooding, prevent material buildup and maintain continuous measurement, delivering reliable, maintenance‑free operation in unmanned remote wetwells.

Commission SITRANS LR100 radar quickly and safely using the free SITRANS mobile IQ app. Configure, verify and diagnose devices from ground level without entering confined spaces and climbing tank tops or risking exposure to hazardous materials. No manuals required. The app supports iOS, Android and Windows devices for simple, intuitive setup.

SITRANS LR100 delivers reliable 80 GHz radar level measurement in demanding solids applications. Its narrow beam and high sensitivity allow stable readings while Bluetooth access via the SITRANS mobile IQ app simplifies operation.

SITRANS LT500 and SITRANS LR110 provide pump control for irrigation systems and reduce costs through close water‑level monitoring. Installation, connection and commissioning are simple, requiring no instrumentation experience.

SITRANS LT500 and SITRANS LR120 activate shaker screens based on rock height in the crusher. Bluetooth enables fast commissioning and monitoring from a smartphone or tablet, and the SITRANS mobile IQ app clearly shows performance.

Setting up SITRANS LR100 is quick and straightforward. SITRANS mobile IQ app guides you step by step, allowing you to configure the transmitter easily using your mobile device. Watch the video to see how fast and simple the setup process can be in real-world conditions.

The Auto False Echo Suppression feature makes it easy to ignore obstructions inside your vessel. This easy-to-use functionality helps ensure reliable level measurement by filtering out false echoes. Watch the video to see how it works in practice.

Yes. The SITRANS LR100 can reliably measure level through a non‑metallic plastic tank top without the need for a nozzle or tank penetration. Radar signals pass through most plastics with minimal attenuation, enabling accurate, continuous measurement while keeping the transmitter safely outside the vessel.

For best performance, the tank top should be free of metallic layers or reinforcements and excessively thick or highly filled plastics should be evaluated. This approach improves safety by eliminating confined‑space entry and exposure to process media, and it simplifies installation and maintenance.

A properly engineered level measurement system should also include a level switch for alarm or back‑up. Typically for Hi level overfill prevention and/or low‑level for dry‑run protection, these safeguards help ensure safe operation and process reliability.

Supplementary components are designed to work alongside most types of instrumentation to enhance functionality, such as enabling remote displays and remote monitoring solutions. They help extend system visibility and accessibility.

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