Sitrans LR250 Horn Antenna

Siemens Sitrans LR250 Horn Antenna


The Siemens Sitrans Probe LR250 Horn Antenna is a 2-wire, 6 GHz pulse radar Level Transmitter for continuous monitoring of liquids and slurries in storage vessels with nominal pressure and temperature, to a range of 20 m (66ft).

LR250 Horn Antenna

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Graphical local user interface (LUI) makes operation simple with plug-and-play setup using the intuitive Quick Start Wizard
LUI displays echo profiles for diagnostic support
25 GHz high frequency allows for small horn antennas for easy mounting in nozzles
Insensitive to mounting location and obstructions, and less sensitive to nozzle interference
Short blanking distance for improved minimum measuring range to 50 mm (2") from the end of the horn
Communication using HART® or PROFIBUS PA, or FOUNDATION FieldbusTM
Process Intelligence signal processing for improved measurement reliability and Auto False-Echo Suppression of fixed obstructions
Programming using infrared Intrinsically Safe handheld programmer or over a network using SIMATIC PDM, Emerson AMS, or Field Device Tools, such as PACTware or Fieldcare via SITRANS DTM
Suitable for use in safety related systems in accordance with IEC 61508/61511 (SIL-2)
3mm (0.118 inch) accuracy in accordance with IEC 60770-1.
Technology: Pulse radar
Range: 20m (66 ft)
Process temperature: -40 to 200°C (-40 to 392°F)
Process pressure: Up to 40 bar g (580 psi g)
Max. measured error: 3 mm (0.118 inch)
Certificates and approvals: Ex iaD 20 tD A20
  INMETRO Ex ia IIC T4 Ga
Ex ta IIIC T90°C Da IP67
  INMETRO Ex d ia mb IIC T4 Ga/Gb
​Ex tb IIIC T90°C Db IP67
  NEPSI