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Siemens ST-H 7ML1100-0AA20 Ultrasonic Level Transducer

Siemens ST-H 7ML1100-0AA20 Ultrasonic Level Transducer, 0.3-10m range.

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ManufacturerSiemens

Part number7ML1100-0AA20

Type Ultrasonic, Non-Contact

Range 0.3 - 10m (1-33ft)

Process Connection 2" NPT (ETFE)

Cable Length 5 m (16.40 ft)

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Continuous Non-Contact Measurement 0.3-10m Measurement Range ETFE Process Connection 5m Cable Length FM Class I, II, Div. 1 Approval Suitable for Liquids Robust Design

Product description

The Siemens ST-H 7ML1100-0AA20 is a continuous, non-contact ultrasonic level transducer designed for measuring liquid levels. It offers a measurement range of 0.3 to 10 meters (1 to 33 ft). The transducer features a process connection of 2" NPT made from ETFE, a robust material resistant to chemicals. This version includes a 5-meter (16.40 ft) cable.

This transducer is ideal for applications in chemical processing, water and wastewater treatment, and bulk storage where reliable, non-contact level measurement is required. Its approvals include CE, UKCA, and FM Class I, II, Div. 1, Groups C, D, E, F, G T4A, making it suitable for hazardous environments. It is specifically designed for liquids.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 7ML1100-0AA20. We provide access to quality components, ensuring your level monitoring systems are accurate and dependable. Source your automation needs from Stanlo and benefit from our expertise and service.

Technical specifications

Type	Ultrasonic, Non-Contact
Range	0.3 - 10m (1-33ft)
Process Connection	2" NPT (ETFE)
Cable Length	5 m (16.40 ft)
Output	4-20mA
Approvals	CE, UKCA, FM Class I, II, Div. 1, Groups C, D, E, F, G T4A
Material Compatibility	Liquids

Common applications

Chemical Storage Tanks

Water Treatment Plants

Wastewater Sumps

Oil & Gas Storage

Food & Beverage Tanks

Pharmaceutical Vessels

Compatible systems

Compatible with PLCs and SCADA systems accepting 4-20mA input signals. Suitable for various liquid types including aggressive chemicals due to ETFE wetted parts.

Also known as

Siemens ST-H Level Sensor 7ML1100-0AA20 Ultrasonic Sensor Siemens Non-Contact Level Transmitter

Replaces / compatible with

Replaces older ultrasonic level sensors with similar ranges or replaces invasive level measurement devices. Check compatibility for specific tank configurations.

Technical note

Expert tip

For optimal performance with the 7ML1100-0AA20, ensure the transducer is mounted to avoid foam, vapor, or obstructions in the measurement path.

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Frequently asked questions

What hazardous area classifications does the Siemens 7ML1100-0AA20 transducer meet?

The Siemens 7ML1100-0AA20 ultrasonic level transducer meets FM Class I, II, Div. 1, Groups C, D, E, F, G T4A hazardous area classifications. This makes it suitable for use in potentially explosive atmospheres where safety is critical.