Siemens SITRANS Probe LU Loop-Powered Long Range Ultrasonic Level Transmitter
Loop-powered ultrasonic transmitter for liquid level measurements in open channels, storage vessels and simple process vessels up to 40 feet (12 meters). 10° beam angle. ETFE or PVDF copolymer transducer for chemical resistance in a variety of applications. Good for process temperatures to 185°F (85°C). Available in general purpose or intrinsically safe models.
Siemens SITRANS Probe LU is a two-wire, loop-powered integrated ultrasonic level transmitter that includes automatic false-echo suppression, Milltronics' patented Sonic Intelligence echo processing, with digital communications and programming options in a single unit. The Probe LU is ideal for level monitoring in the water and wastewater industry and chemical storage vessels, and can reliably monitor level, volume, and flow of liquids in open channels, storage vessels, and process vessels.
The transducer on the Probe LU is available as ETFE or PVDF to suit the chemical conditions of your application. To compensate for temperature changes in applications with varying material and process temperatures, the Probe LU incorporates an internal temperature sensor. It comes with two communications options: HART® with 4-20 mA output or PROFIBUS PA (Profile v3.0, Class B).
- Continuous Liquid Level Measurement at 20- or 40-Foot (6 or 12 Meter) Range
- ETFE or PVDF Wetted Parts for Chemical Compatibility
- Patented Self-Learning Algorithm Ignores False Echoes from Fixed Obstructions
- Programming using Intrinsically Safe Infrared Handheld Programmer, SIMATIC PDM, or HART communicator
- Short 10-Inch (0.25m) Blanking Distance, Even at Long Ranges
- Performs Level-to-Volume or Level-to-Flow Conversions
- CSA, FM, CE Approvals Standard; ATEX, CSA, FM Intrinsically Safe, Non-Incendive Approvals Optional
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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: 7ML5221-_ _ _ _ _
| Description | Catalog Number |
|
|---|---|---|
| SITRANS Probe LU: Ultrasonic Level Transmitter | 7ML5221- | |
| Range | 20 Ft (6 M) ETFE Wetted Parts 20 Ft (6 M) PVDF Copolymer Wetted Parts 40 Ft (12 M) ETFE Wetted Parts 40 Ft (12 M) PVDF Copolymer Wetted Parts |
2A_ _ _ 2B_ _ _ 2C_ _ _ 2D_ _ _ |
| Communications/ Output |
HART® and 4-20 mA Output Profibus PA |
_ _A1_ _ _A2_ |
| Approvals | General Purpose FM, CSA, CE FM Class I, Div 2 Intrinsically Safe (HART®) FM/CSA Intrinsically Safe (Profibus) FM/CSA |
_ _ _ _1 _ _ _ _4 _ _ _ _8 _ _ _ _5 |
| Accessories | Intrinsically Safe Handheld Programmer | 7MK5830-2AH |
| 2" NPT Universal Mounting Adapter for 3" Flange | 7ML1830-1BT | |
| SITRANS Probe LU Instruction Manual | A5E32337695 | |
| SITRANS Probe LU Quick Start Guide | A5E32168031 | |
| USB HART® Modem for PC and SIMATIC PDM | 7MF4997-1DB | |
| SIMATIC PDM v8.1 Software for Configuring, Commissioning and Diagnostics; (Profibus, HART®, 4 Tags) | TGX:PDM-3AB28-0YA5 | |
| HART | Yes |
|---|---|
| Point or Continuous Level | Continuous |
| Level Media | Liquid |
| Level Technology | Ultrasonic |
| Measuring Range | 10 Inches to 40 Feet (0.25 to 12 Meters) |
| Wetted Materials | ETFE or PVDF copolymer transducer, Buna-N seal |
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