Product Overview

The SITRANS LR120 is a compact 80 GHz radar transmitter with Bluetooth wireless technology, designed for level measurement of liquids or solids over longer distances. Its narrow beam allows for flexible installation, and it features communication options, the longest range in the series (up to 30 metres), and an optional submergence shield for flood protection.

Key Features

• Compact 80 GHz radar transmitter.
• Bluetooth wireless technology for easy setup and commissioning via the Siemens SITRANS mobile IQ App.
• Narrow 4° beam angle for optimal performance over longer distances.
• Custom radar microchip for reliable measurement even with condensation, build-up, or fluffy solids.
• Zero blanking zone allows measurement right up to the sensor.
• High accuracy of 2 mm (0.08").
• 2-wire, 4 to 20 mA/HART or 4-wire, Modbus communication options.
• Longest measurement range in the series, up to 30 m (98 ft).
• Optional submergence shield for flooding protection.
• Process connection via PVDF thread (1").
• Process pressure range of -1 to 3 bar.
• Process temperature range of -40 to 80 °C (-40 to 176 °F).
• Bluetooth enabled.

Technical Specifications

Supplementary components are available to enhance functionality, such as remote displays and monitoring solutions. For a complete and safe level measurement solution, consider incorporating switches for back-up, overfill, low level, and dry run protection.