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7ML5221-1BA11

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Overview of Siemens 7ML5221-1BA11

Buy genuine Siemens 7ML5221-1BA11 online today for your automation system. The Siemens 7ML5221-1BA11 is a high-performance SITRANS Probe LU ultrasonic level transmitter designed for continuous, non-contact measurement of liquids and slurries in industrial environments. This 2-wire, loop-powered transmitter offers reliable monitoring of level, volume, and flow in open channels, storage vessels, and process tanks. With a measurement range up to 12 meters (40 feet), the 7ML5221-1BA11 is ideal for applications requiring robust, accurate, and maintenance-free operation. The device features a durable PBT enclosure, built-in temperature compensation, and is suitable for both indoor and outdoor installations. Whether you need to upgrade your process control system or replace legacy equipment, the Siemens 7ML5221-1BA11 delivers factory-grade performance and seamless integration.

Key Features of Siemens 7ML5221-1BA11

  • Loop-powered ultrasonic transmitter for level, volume, and flow monitoring
  • Continuous, non-contact measurement up to 12 meters (40 feet)
  • Enclosure made of durable PBT (Polybutylene Terephthalate)
  • 2 x M20 cable gland or 2 x ½" NPT thread for flexible installation
  • 4-20mA output with HART communication protocol
  • Temperature compensation for stable readings across varying conditions
  • IP67/IP68 protection for outdoor and harsh environments
  • FM, CSA, CE, C-TICK, and KCC approvals for global compliance
  • Easy installation and simple startup with infrared programming
  • Approved for use in general purpose, hazardous, and industrial settings

Technical Specs of 7ML5221-1BA11

Review Siemens 7ML5221-1BA11 specifications for detailed parameters covering voltage, I/O, and communication before installation.

Parameter Value
Model 7ML5221-1BA11
Measurement Range Up to 12 m (40 ft)
Output 4-20mA, HART
Enclosure Material PBT
Protection Rating IP67/IP68
Ambient Temp -40°C to +80°C
Process Connection 2" NPT
Approvals FM, CSA, CE, C-TICK, KCC

Applications / Use Case

This Siemens 7ML5221-1BA11 is commonly used in industrial automation worldwide. It is ideal for monitoring liquid levels in open channels, storage tanks, and process vessels in water treatment, chemical processing, food and beverage, and manufacturing industries. The device’s non-contact design and robust construction make it suitable for harsh environments and applications requiring high reliability and minimal maintenance.

Price & Availability

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7ML5221-1BA11

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Does it come with a warranty?

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