SIEMENS SITRANS LR250 Flanged Encapsulated Antenna Radar Level Transmitter

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Siemens SITRANS LR250 with flanged encapsulated antenna: A state-of-the-art 2-wire, 25 GHz pulse radar level transmitter meticulously engineered for continuous monitoring of liquids and slurries in storage and process vessels, even those containing corrosive or aggressive materials, with a range of up to 20 meters (66 feet) (dependent on antenna).

Part Number: SIE_LR250_2041
SIEMENS SITRANS LR250 Flanged Encapsulated Antenna Radar Level Transmitter

BENEFITS

Equipped with a graphical local user interface (LUI), the LR250 streamlines setup and operation with an intuitive Quick Start Wizard and echo profile displays for diagnostic support. Startup is effortless with the Quick Start Wizard, requiring only a few parameters for basic operation.

With its 25 GHz frequency, the LR250 produces a narrow, focused beam, enabling the use of smaller antenna options and reducing sensitivity to obstructions. Its unique design allows for safe and straightforward programming using the Intrinsically Safe handheld programmer, eliminating the need to open the instrument’s lid.

The LR250 excels in measuring small vessels and tanks up to 20 meters (66 feet) on materials with a dielectric constant (dk) greater than 1.6, ensuring superb accuracy in level monitoring

  • Fully encapsulated horn antenna design with FDA approved TFM 1600 PTFE lens for use in chemical and sanitary environments where aggressive and corrosive materials are used
  • Cost effective replacement for transmitters made of exotic materials
  • 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 and 50 mm (2 inch) process connection/antenna allow for easy mounting
  • 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
  • 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
  • Suitable for API 2350
Application Radar Level Transmitter
Input (Measuring Range) Minimum Measuring Distance: 50 mm (2 inch) from end of antenna Maximum Measuring Distance: 20 m (66 ft)
Output 4 ... 20 mA
Measuring Accuracy > 500 mm from sensor reference point: 3 mm (0.118 inch) < 500 mm from sensor reference point: 25 mm (1 inch)
Operating conditions 40 ... +170 °C (-40 ... +338 °F) at process connection See LR250 Flanged Encapsulated Antenna Pressure/Temperature curves for more information.
Degree of Protection Type 4X/NEMA 4X, Type 6/ NEMA 6, IP67, IP68
Weight Approx. 7 kg (15.43 lb) for 2" Class 150 ASME B16.5 raised face flange (smallest size) Approx. 17.7 kg (39.02 lb) for 6" Class 150 ASME B16.5 raised face flange (largest size)
Electrical Connections 2 x M20 x 1.5 or 2 x ½" NPT
Explosion Protection IECEx (Dependent on Configuration)

Siemens Process Control & Instrumentation – Procint Australia

Procint is proud to be a leading Australian supplier of Siemens process control and instrumentation products.
Siemens is recognised worldwide for precision, innovation, and long-term reliability — trusted across industries from water treatment and manufacturing to mining and energy.
At Procint, we stock and support the full range of Siemens sensors, transmitters, and measurement systems designed to keep your process accurate, efficient, and compliant.

Flow Measurement
Get dependable and accurate Siemens flow meters for liquid, gas, and slurry applications.
From magnetic flow meters to ultrasonic and Coriolis systems, Siemens offers smart diagnostics, low maintenance, and seamless integration into any automation setup.
Ideal for demanding industrial environments where every reading matters.

Level Measurement
Siemens level transmitters are built to perform in all conditions.
Choose from radar, ultrasonic, or guided wave radar sensors for precise monitoring of liquids and solids in tanks, silos, and open channels.
Procint supplies the full Siemens range, backed by local technical support and fast delivery across Australia.

Pressure Measurement
Maintain control with Siemens pressure transmitters engineered for accuracy and long-term stability.
From differential and gauge pressure sensors to hygienic models for food and pharma, Siemens pressure instruments ensure reliable operation across even the toughest process conditions.

Temperature Measurement
Siemens temperature sensors and transmitters deliver precise readings and easy integration.
Whether you need RTDs, thermocouples, or complete temperature measurement systems, Procint can help you select the right Siemens solution for your plant or project.

Geophysical Measurement
Siemens geophysical instrumentation combines advanced technology with rugged design to deliver accurate field and environmental data.
Perfect for resource exploration, energy production, and environmental monitoring where precision is critical.

Weighing Measurement
Siemens weighing systems provide high-accuracy load cells, belt scales, and weighing modules for process and bulk material handling.
Trusted across industries for consistency and durability, Siemens weighing technology helps optimise production and reduce waste.

Why Choose Siemens from Procint
When you choose Procint, you’re partnering with an Australian team that understands Siemens technology inside and out.
We offer expert advice, competitive pricing, and support for integration across all major process control systems.
From individual sensors to complete measurement networks, Procint makes it easy to source genuine Siemens process instrumentation in Australia.

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SIEMENS SITRANS LR250 Flanged Encapsulated Antenna Radar Level Transmitter
SIEMENS SITRANS LR250 Flanged Encapsulated Antenna Radar Level Transmitter

POA – Please submit a RFQ

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