7ML5221-2DA11

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Overview of Siemens 7ML5221-2DA11 SITRANS Probe LU Ultrasonic Level Transmitter

The Siemens 7ML5221-2DA11 SITRANS Probe LU is a continuous, non-contact ultrasonic level transmitter designed for liquids and slurries. It offers a measurement range up to 12 meters (40 feet) and is suitable for level and volume monitoring in a variety of industrial vessels and open channels. The device supports communication via 4-20 mA/HART and optional PROFIBUS PA for enhanced integration and diagnostics.

Key Features of Siemens 7ML5221-2DA11 Ultrasonic Level Transmitter

  • Non-contact ultrasonic measurement up to 12 meters (40 feet) – Avoids wear and contamination.
  • Patented Sonic Intelligence® signal processing – High signal-to-noise ratio for reliable measurements.
  • Auto False-Echo Suppression – Eliminates erroneous signals caused by fixed obstructions.
  • Communication options – Supports 4-20 mA/HART and PROFIBUS PA protocols.
  • Process connections – 2" NPT (taper), BSPT or BSPP available, plus flange options.
  • Robust construction with ETFE or PVDF transducers – Excellent chemical compatibility.
  • Compact design with LCD display and bargraph – Enables easy configuration and local readout.

Technical Specs

Specification Details
Model Number 7ML5221-2DA11
Type Ultrasonic Level Transmitter (SITRANS Probe LU)
Measurement Range 0.25 to 12 meters (10" to 40')
Frequency 54 kHz
Output 4-20 mA with HART and optional PROFIBUS PA
Process Connection 2" NPT (taper), BSPT, BSPP or flange
Transducer Material ETFE or PVDF
Operating Temperature -40°C to +85°C (-40°F to +185°F)
Enclosure IP67 / NEMA 4X
Display LCD with bargraph
Weight Approx. 2.2 kg (4.6 lbs)

Applications / Use Case

The Siemens SITRANS Probe LU ultrasonic transmitter is designed for continuous level and volume monitoring in open channels, storage vessels, and process tanks for liquids and slurries. It is widely used in water and wastewater treatment, chemical processing, and food industries.

Siemens provides comprehensive technical support and warranty to ensure reliable product performance.

7ML5221-2DA11

$0.00

  • ACHIEVING

    4.0

    average rating

  • With

    95%

    positive reviews

  • LESS THAN

    1%

    return rate

Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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