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Siemens SITRANS Probe LU Ultrasonic Level Transmitter (7ML5221-2BA14)

Siemens SITRANS Probe LU ultrasonic level transmitter, 6m range, PVDF, Class 1 Div 2.

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ManufacturerSiemens

Part number7ML5221-2BA14

Part Number 7ML5221-2BA14

Manufacturer Siemens

Type Ultrasonic Level Transmitter

Series SITRANS Probe LU

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Continuous non-contact measurement 6m (20 ft) range PVDF copolymer transducer material Class 1, Div 2 approved HART communication 4-20mA output

Product description

The Siemens SITRANS Probe LU 7ML5221-2BA14 is a continuous, non-contact ultrasonic level transmitter designed for use in hazardous locations classified as Class 1, Div 2. It measures level and volume in liquids and slurries up to a 6-meter (20 ft) range, featuring a PVDF copolymer transducer and a 2" NPT process connection. This model carries FM and Class 1, Div 2 approvals.

This transmitter is suitable for applications in the oil and gas, chemical, and general industrial sectors where non-incendive or Division 2 hazardous area classifications are present. The PVDF transducer offers robust chemical resistance for reliable performance with various media.

Stanlo Automation, a veteran-owned surplus parts supplier, provides the Siemens SITRANS Probe LU 7ML5221-2BA14. We are committed to offering quality, cost-effective automation components to meet your operational demands.

Technical specifications

Part Number	7ML5221-2BA14
Manufacturer	Siemens
Type	Ultrasonic Level Transmitter
Series	SITRANS Probe LU
Range	6 meter (20 ft)
Transducer Material	PVDF Copolymer
Process Connection	2" NPT
Communication/Output	4-20mA, HART
Approval	FM, Class 1, Div 2

Common applications

Oil & Gas

Chemical Processing

Industrial Manufacturing

Hazardous Locations (Div 2)

Liquid Level Monitoring

Compatible systems

4-20mA input loops HART communication devices Div 2 control panels

Also known as

Siemens SITRANS Probe LU 7ML5221-2BA14 SITRANS Probe LU Transmitter Siemens Class 1 Div 2 Level Sensor

Replaces / compatible with

This part is in phase out. Consider replacing with: SITRANS Probe LU240 7ML51.

Technical note

Expert tip

For Class 1, Division 2 applications, ensure the wiring practices and conduit seals comply with relevant local codes and standards.

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Frequently asked questions

Is the Siemens 7ML5221-2BA14 suitable for hazardous locations?

Yes, the Siemens 7ML5221-2BA14 SITRANS Probe LU is approved for Class 1, Division 2 hazardous locations by FM. This makes it suitable for use in areas where flammable gases or vapors may be present under abnormal conditions.