SIEMENS SITRANS LR110 Radar Level Transmitter


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Siemens SITRANS LR110: A state-of-the-art W band FMCW radar level transmitter, housed in a hermetically sealed PVDF enclosure, ensuring years of dependable and trouble-free measurement service.


This transmitter, powered by a 4 to 20 mA loop with optional HART [or 4-wire Modbus RTU], delivers precise level measurements with a range of up to 15 meters (49.2 feet). Its non-intrusive measurement capability allows for easy installation through plastic vessel tops. Plus, programming is made simple with Bluetooth connectivity, enabling seamless setup via the SITRANS mobile IQ application on your smart device.

  • Bluetooth connectivity for easy setup with SITRANS mobile IQ.
  • Chemically resistant PVDF enclosure.
  • HART 7.0 or Modbus RTU communication for intelligent integration into your application.
  • W band FMCW radar yields narrow beam with small antenna for superior performance in short range applications.
  • Approved for open air applications outside of a tank.
  • 2 mm accuracy and zero near range distance yields optimum inventory management capability.
  • Compact design fits in limited space installations.
  • Hazardous area variants available for safe use in explosive gas or dust environments.

Product Data Sheet – Siemen SITRANS LR110 Radar Transmitter

Operation Manual – Siemen SITRANS LR110 Radar Transmitter


Application Radar Level Transmitter

(Measuring Range)

0 … 15 m (0 … 49.2 ft)
Output 4 … 20 mA
Measuring Accuracy ± 2 mm (range 0.25 … 015 m),
± 10 mm (range 0 … 0.25 m)
Operating conditions -40 … +80 °C (-40 … +176 °F)

-1 … +3 bar (14.50 … 43.51 psi g)

Degree of Protection IP66/IP68
Weight 0.5 kg (1.1 lb),
plus 0.1 kg/m (0.2 lb/ft) cable length
Electrical Connections 8 m (26 ft) long, 2 conductor, twisted with shield 18 AWG, PVC jacket
Explosion Protection IECEx (Dependent on Configuration)
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SIEMENS SITRANS LR110 Radar Level Transmitter

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