Siemens SITRANS LR250 Flanged Encapsulated Antenna (FEA) Radar Level Transmitter

Prices starting at:
$2,945.00
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SKU
7ML5432

Two-wire 25 GHz pulse radar level transmitter for continuous level monitoring of liquids and slurries in ranges up to 66 feet (20 meters). 9.6° or 12.8° beam angle. Near flush, flanged encapsulated 316L stainless steel horn antenna with PTFE lens with very short 50 mm (2 inch) blanking distance from the end of antenna. 4-20 mA output plus HART communications standard. Good for process temperatures to 338°F (170°C), and media with dielectric constant greater than 1.6 when installed in a stilling pipe, or dielectric greater than 3 when installed directly in a small tank or vessel

Siemens SITRANS LR250  FEA with a flanged encapsulated antenna is a two-wire, 25 GHz radar level transmitter for continuous monitoring of corrosive or aggressive liquids and slurries in storage and process vessels. Its graphical user interface and Quick Start Wizard make configuration and operation simple. It also displays echo profiles for easy diagnostic support.

  • Key applications include liquid bulk storage tanks, process vessels with agitators, vaporous liquids, corrosive and aggressive materials, and applications where ease of cleaning is required (like food or fine chemicals)
  • Ideal for chemical and sanitary environments with process temperatures to 338°F
  • Two-wire 25 GHz pulse radar level transmitter
  • Good for continuous monitoring in small tanks and vessels from 2 inches to 66 feet (20 meters)
  • 9.6° or 12.8° beam angle, depending on flanged connection size
  • Good for liquids or slurries with dielectric constant greater than 1.6 when installed in a stilling pipe, or dielectric greater than 3 when installed directly in a small tank or vessel
  • Process Intelligence signal processing for improved measurement reliability and Auto False Echo Suppression for fixed obstructions
  • Program using Siemens' infrared intrinsically safe handheld programmer, SIMATIC PDM software and a PC, or HART handheld programmer
  • Startup with as few as two parameters for basic operation
  • NEMA 4X/NEMA 6/IP67/IP68 rated aluminum enclosure, 316L stainless steel antenna with PTFE lens
  • CE, CSA, FM, ATEX approvals available
  • Available with SIL2 Functional Safety certificate for use in accordance with IEC 61508 and IEC 61511
  • LR250 is also available with a stainless steel horn antenna, threaded PTFE antenna for harsh or corrosive applications, or an antenna specifically for hygienic applications

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Model Selection Guide

Use this table to find the right model for your application. Don't see the option you need? Call a Lesman sales specialist at 800-953-7626.

Make one choice from each table section. A complete catalog number will look like this: 7ML5432-0 _ _ _0-_ _ _ 0.

Description Catalog
Number
SITRANS LR250 Two-Wire 25GHz Pulse Radar Level Transmitter 7ML5432-
Process Connection 2" Class 150 ASME Flanged Stainless Steel, Raised Face, 12.8° Beam Angle
3" Class 150 ASME Flanged Stainless Steel, Raised Face, 9.6° Beam Angle
4" Class 150 ASME Flanged Stainless Steel, Raised Face, 9.6° Beam Angle
6" Class 150 ASME Flanged Stainless Steel, Raised Face, 9.6° Beam Angle
0BF _ _-
0BG _ _-
0BH _ _-
0BJ _ _-
Communication 4-20 mA, HART® (Startup at <3.6 mA)
PROFIBUS PA
_ _ _20-
_ _ _10-
Enclosure Epoxy-Painted Aluminum with Two 1/2" NPT Inlets 0_ _ _
Antenna Lens TFM 1600 PTFE Flushed Lens _ A _ _
Approvals General Purpose CE, CSA, FM, FCC
Intrinsically Safe CSA.FM, FCC  [2]
Non-Incendive CSA/FM, FCC
Explosion Proof FM
_ _ A _
_ _ B _
_ _ D _
_ _ H _
Pressure Rating per Pressure/Temperature Curves _ _ _ 0
SIL2 [4] Functional Safety, SIL 2 Compliance Cert ,Z-C20
Accessories Intrinsically Safe Handheld Programmer
USB HART Modem for Use with PC and SIMATIC PDM
7ML1930-1BK
7MF4997-1DB

Notes:

[2] Intrinsic safety barrier required.
[4] For HART models with general purpose or intrinsically safe approvals only.

More Information
HART Yes
SIL-Rated Yes
Point or Continuous Level Continuous
Level Media Liquid, Slurry
Level Technology Radar
Measuring Range 2 Inches to 66 Feet (0.05 to 20 Meters)
Wetted Materials TFM 1600 PTFE

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