7ML5221-1BB11

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Overview of Siemens 7ML5221-1BB11 SITRANS Probe LU Ultrasonic Level Transmitter

The Siemens 7ML5221-1BB11 SITRANS Probe LU is a continuous, non-contact ultrasonic level transmitter designed for measuring level and volume in liquids and slurries. It offers a range of up to 12 meters (40 feet) using a PVDF copolymer transducer, suitable for chemical, water, and wastewater industries. This model supports communication via 4-20 mA, HART, and optional PROFIBUS PA protocols.

Key Features of Siemens 7ML5221-1BB11 Ultrasonic Level Transmitter

  • Non-contact ultrasonic measurement – Prevents wear and contamination for reliable long-term use.
  • Measurement range up to 12 meters (40 feet) – Suitable for open channels, storage, and process vessels.
  • PVDF copolymer transducer – Ensures excellent chemical resistance.
  • Supports 4-20 mA, HART, and optional PROFIBUS PA – Enhances integration and diagnostics.
  • Plastic (PBT) enclosure with 2 x M20 cable inlets – Designed for industrial environments.
  • Process connection: R 2" BSPT (EN 10226) – Compatible with standard fittings.
  • Approvals: CE, FM, CCSAUS, UKCA, RCM – Certified for general purpose and hazardous locations.

Technical Specs

Specification Details
Model Number 7ML5221-1BB11
Type Ultrasonic Level Transmitter (SITRANS Probe LU)
Measurement Range 0.25 to 12 meters (10" to 40')
Transducer Material PVDF copolymer
Output Signals 4-20 mA, HART, optional PROFIBUS PA
Process Connection R 2" BSPT (EN 10226)
Enclosure Plastic (PBT) with 2 x M20 cable inlets
Operating Temperature -40°C to +85°C (-40°F to +185°F)
Approvals CE, FM, CCSAUS, UKCA, RCM
Weight Approx. 2.2 kg (4.9 lbs)

Applications / Use Case

The Siemens SITRANS Probe LU 7ML5221-1BB11 ultrasonic level transmitter is optimized for continuous level and volume measurement 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 offers reliable product support and warranty for sustained performance in industrial environments.

7ML5221-1BB11

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    1%

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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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