Siemens SITRANS LR250 Flanged Encapsulated Antenna (FEA) Radar Level Transmitter
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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
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.
| 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 |
To build your complete part number, make a selection from each table section below. Your completed model and its price will appear in the Results section. If you don't see the options you need, call us.
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