Siemens Non-contact ultrasonic level 7ML5221-1BA11 4
7ML5221-1BA11-4
Siemens
Siemens Non-contact ultrasonic level 7ML5221-1BA11 4
Home > Products > Siemens > Level Transmitter Siemens 7ML5221-1BA11 4 Non-contact ultrasonic level transmitter. For Continuous liquid and slurry level…
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Specifications
| Brand | Siemens |
|---|---|
| Model Number | 7ML5221-1BA11 |
| Official Product Name | SITRANS Probe LU Ultrasonic Level Transmitter |
| Applicable System | Continuous liquid and slurry level / volume measurement |
| Product Type | Non-contact ultrasonic level transmitter |
| Equivalent Standard | N/A |
| Product Status | Phased-out; replacement SITRANS Probe LU240 (7ML51) |
| Accuracy | Approximately +/-0.15% of span or 6 mm |
| Process Connection | 2 inch NPT |
| Transducer Material | PVDF copolymer |
| Enclosure | Plastic (PBT), IP67/IP68 |
| Output | 4-20 mA, HART (PROFIBUS PA optional) |
| Ambient Temperature | -40 to 80 deg C |
| Net Weight | Approx. 2.2 kg |
| Measuring Range | 6 m (20 ft) |
Product Description
Siemens 7ML5221-1BA11 4 Non-contact ultrasonic level transmitter. For Continuous liquid and slurry level / volume measurement. Worldwide shipping from stock.
It uses a PVDF copolymer transducer in a plastic (PBT) enclosure, 2 inch NPT process connection and 4-20 mA HART output. This order code is in phase-out; the recommended replacement is the SITRANS Probe LU240. The Siemens 7ML5221-1BA11 is a SITRANS Probe LU ultrasonic level transmitter for continuous, non-contact measurement of liquids and slurries, with a 6 m (20 ft) range.
Basic Product Information
- PVDF copolymer transducer, plastic (PBT) enclosure
- 2 inch NPT process connection, 4-20 mA + HART output
- Optional PROFIBUS PA communication
- Built-in temperature compensation and false-echo suppression
- Non-contact ultrasonic measurement up to 6 m (20 ft)
Technical Specifications
Version & Model Difference
The 7ML5221-1BA11 is a specific option variant (6 m range, ordinary-location approval, 4-20mA HART). The family also offers 12 m range versions; the successor platform is the SITRANS Probe LU240 (7ML51).
Application Scenarios
- Water and wastewater level monitoring
- Chemical processing tanks
- Food and beverage liquid storage
- Slurry and bulk-liquid level measurement
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Frequently Asked Questions
What is the 7ML5221-1BA11?
It is a Siemens SITRANS Probe LU non-contact ultrasonic level transmitter with a 6 m measuring range.
What output does it provide?
It provides a 4-20 mA signal with HART; PROFIBUS PA is optional.
Is it still in production?
It is in phase-out; Siemens recommends the SITRANS Probe LU240 (7ML51) as replacement.
What are its key specs?
6 m range, PVDF transducer, 2 inch NPT, PBT enclosure, IP67/IP68, -40 to 80 deg C ambient.
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