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, featuring Bluetooth for quick setup and a narrow beam.

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

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

Designed to reduce commissioning effort and long-term maintenance, the SITRANS LR100 series enables 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 meet your application and budget needs.

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 the time spent in hazardous areas.

Easily adapt installations with a compact design and a 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 using an extremely sensitive custom radar microchip for reliable measurements. Measure up to the sensor with zero blanking and 2 mm accuracy, and enable digital communication via HART 7 or optional Modbus RTU.

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

HART or Modbus communication; hazardous-area certification options; range up to 20 m

HART or Modbus communication; optional submersion shield for flood protection; maximum range of 30 m

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

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

Condensation can affect level measurement, but the SITRANS LR100 overcomes this issue. With extreme radar sensitivity and intuitive setup using the SITRANS mobile IQ app, the transmitter continues to deliver accurate, reliable readings in harsh, high-humidity 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-powered installations.

Use a submersion shield to protect the sensor during flooding, prevent material buildup, and maintain continuous measurement, ensuring reliable, maintenance-free operation in unmanned remote wet wells.

Commission the 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, climbing onto 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 provides reliable 80 GHz radar level measurement in demanding solids applications. Its narrow beam and high sensitivity ensure stable readings, while Bluetooth connectivity via the SITRANS mobile IQ app simplifies operation.

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

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

Setting up the SITRANS LR100 is quick and straightforward. The SITRANS mobile IQ app guides you step by step, allowing you to easily configure the transmitter 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 feature 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 optimal performance, the tank top should not contain any metallic layers or reinforcements, and plastics that are excessively thick or highly filled should be evaluated. This approach improves safety by eliminating the need to enter confined spaces 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 backup purposes. Typically used for high-level overfill prevention and/or low-level dry-run protection, these safeguards help ensure safe operation and process reliability.

Supplementary components are designed to work in conjunction with most types of instrumentation to enhance functionality, such as by enabling remote displays and remote monitoring solutions. They help expand system visibility and accessibility.

Catalogs | Radar Level Transmitters

Application Examples | Radar Level Transmitters

Product notes | Radar level transmitters

Technical Data | Radar Level Transmitters

Image database | Images, graphics, drawings

Online Support | Create a New Support Request