SIEMENS Brand New SITRANS LR250 Process Instrumentation Level Measurement Continuous very competitive price and One year Warranty

New & Original
LR250 Series
SIEMENS Brand New SITRANS LR250 Process Instrumentation Level Measurement Continuous very competitive price and One year Warranty
Please contact us for more information.

SIEMENS Brand New SITRANS LR250 Process Instrumentation 

Level Measurement Continuous very competitive price 




SITRANS LR250 is your first choice for liquid level measurement in storage and process vessels up to 20 meters (66 ft). 

With its range of antennas, this transmitter can handle whatever you need it to. Its new flanged and hygienic encapsulated antennas mean 

corrosive or aggressive materials and hygienic or sanitary requirements are no challenge for this transmitter.


SITRANS LR250 is a 2-wire, 25 GHz pulse radar level transmitter for continuous monitoring of liquids and slurries in storage 

and process vessels including high temperature and pressure, to a range of 20 m (66 ft).



  • 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 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 inch) from the end of the antenna

  • Communication using HART, PROFIBUS PA, or FOUNDATION Fieldbus

  • 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

  • Functional Safety (SIL 2). Device suitable for use in accordance with IEC 61508 and IEC 61511

  • 3 mm (0.118 inch) accuracy in accordance with IEC 60770-1

  • Suitable for API 2350


SITRANS LR250 includes a graphical local user interface (LUI) that improves setup and operation by including an intuitive Quick Start Wizard, 

and echo profile displays for diagnostic support. Startup is easy using the Quick Start wizard with a few parameters required for basic operation.

The 25 GHz frequency creates a narrow, focused beam allowing for smaller horn antenna options and decreasing sensitivity to obstructions.

SITRANS LR250’s unique design allows safe and simple programming using the Intrinsically Safe handheld 

programmer without saving to open the instrument’s lid.SITRANS LR250 measures superbly on low dielectric media, 

and in small vessels, as well as tall and narrow vessels.

* Key Applications: liquid bulk storage tanks, process vessels, vaporous liquids, high temperatures, 

low dielectric media and applications with functional safety requirements


Technical specifications


Mode of operation

Measuring principle

Radar level measurement


K-band (25.0 GHz)

Minimum measuring range

50 mm (2 inch) from end of antenna

Maximum measuring range

20 m (65 ft), antenna dependent



Version 5.1

  • Analog output

4 ... 20 mA

  • Accuracy

± 0.02 mA

  • Fail-safe

  • Programmable as high low or hold (loss of echo)

  • NE 43 programmable


Profile 3.01

  • Function blocks

2 Analog Input (AI)



  • Functionality

Basic or LAS

  • Version

ITK 5.2.0

  • Function blocks

2 Analog Input (AI)

Performance (according to reference conditions IEC60770-1)

Maximum measured error

3 mm (0.118 inch)

Influence of ambient temperature

< 0.003 %/K

Rated operating conditions

Installation conditions

  • Location


Ambient conditions (enclosure)

  • Ambient temperature

-40 ... +80 °C (-40 ... +176 °F)

  • Installation category


  • Pollution degree


Medium conditions

Dielectric constant εr

> 1.6, antenna and application dependent

Process temperature

-40 ... +200 °C (-40 ... +392 °F) (at process connection with FKM O-ring)

-20 ... +200 °C (-4 ... +392 °F) (at process connection with FFKM O-ring)

Process pressure

Up to 40 bar g (580 psi g), process connection and temperature dependent.
See Pressure/Temperature curves for more information

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