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Siemens SITRANS Probe LU Ultrasonic Level Transmitter

Siemens SITRANS Probe LU ultrasonic level transmitter, 12m range.

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ManufacturerSiemens

Part number7ML5221-1DB11

Type Ultrasonic Level Transmitter

Range 12m (40 ft)

Output 4-20mA HART

Transducer Material PVDF Copolymer

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Veteran-owned

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Non-contact measurement Continuous level monitoring Up to 12m range 4-20mA HART output Suitable for liquids and slurries Multiple approvals

Product description

The Siemens 7ML5221-1DB11 is a SITRANS Probe LU ultrasonic level transmitter. It offers continuous, non-contact level monitoring for liquids and slurries with a range of up to 12 meters (40 ft). This model features a plastic (PBT) enclosure, two M20 cable entries, and a 12-meter PVDF transducer. The output is a 4-20mA HART signal.

This transmitter is suitable for a wide range of applications in industries such as chemical processing, water and wastewater treatment, food and beverage, and bulk solids handling. Its non-contact measurement principle makes it ideal for corrosive or viscous media.

Stanlo Automation, a veteran-owned surplus distributor, offers the Siemens 7ML5221-1DB11. Secure reliable and cost-effective automation components for your operations.

Technical specifications

Type	Ultrasonic Level Transmitter
Range	12m (40 ft)
Output	4-20mA HART
Transducer Material	PVDF Copolymer
Process Connection	R 2" BSPT
Enclosure	Plastic (PBT)
Approvals	FM, CCSAUS, CE, UKCA, RCM, KC

Common applications

Chemical processing

Water treatment

Wastewater treatment

Food and beverage

Bulk solids handling

Tank level monitoring

Compatible systems

PLC systems with 4-20mA input HART communication devices

Also known as

Siemens SITRANS LU Ultrasonic level sensor 7ML5221 Probe LU

Replaces / compatible with

This product is in phase-out. Consider replacing with the SITRANS Probe LU240 (7ML51 series).

Technical note

Expert tip

The PVDF transducer material offers excellent chemical resistance, making it suitable for a wide variety of media.

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Frequently asked questions

What is the maximum measurement range for the Siemens 7ML5221-1DB11 SITRANS Probe LU?

The Siemens 7ML5221-1DB11 SITRANS Probe LU ultrasonic level transmitter has a maximum measurement range of 12 meters (40 feet). This allows for monitoring of large tanks and vessels.