7ML5221-1DA11

Product Description

Home > Products > Siemens > Radar Level Transmitters Need Siemens 7ML5221-1DA11? Radar Level Transmitter for SITRANS LR250 series. Supplied with full traceability and documentation. Request a quote and current... Price & Availability It operates at 25 GHz and offers a measuring range of up to 20 meters (66 feet), making it suitable for a wide variety of applications including chemical, petrochemical, and water treatment. The device features a compact design with a PEEK or PTFE antenna, ensuring compatibility with corrosive media and high-temperature processes up to 200°C (392°F). The 7ML5221-1DA11 variant is configured with a 4-20 mA HART output, enabling easy integration into existing control systems. It supports a wide supply voltage range of 18-33 V DC and provides high accuracy of ±2 mm, ensuring reliable and precise level measurement. The transmitter is certified for hazardous areas, including ATEX and IECEx approvals, making it safe for use in explosive environments. With its user-friendly local display and intuitive setup via SIMATIC PDM or HART handheld communicators, the SITRANS LR250 simplifies commissioning and maintenance. The device is built to withstand harsh industrial conditions, featuring robust construction and advanced echo processing algorithms that filter out false echoes from agitators and other obstructions. This makes the Siemens 7ML5221-1DA11 a dependable choice for demanding level measurement tasks. The Siemens 7ML5221-1DA11 is a SITRANS LR250 radar level transmitter designed for continuous level measurement of liquids and slurries in process industries. Basic Product Information Measuring range up to 20 m (66 ft) 4-20 mA with HART protocol output Accuracy ±2 mm for reliable readings PEEK or PTFE antenna for chemical compatibility Hazardous area approvals (ATEX, IECEx) Local display with intuitive menu navigation Advanced echo processing for false echo suppression 25 GHz high-frequency radar for precise measurement Technical Specifications Version & Model Difference The Siemens 7ML5221-1DA11 is part of the SITRANS LR250 family. The ordering code 7ML5221-1DA11 specifies a particular configuration: it includes a PEEK antenna (suitable for high temperatures), a 4-20 mA HART output, and a 1-1/2" BSP process connection. Other variants may have different antenna materials (e.g., PTFE), different process connections (e.g., NPT, flanged), or different output protocols (e.g., PROFIBUS PA, FOUNDATION Fieldbus). The '1DA11' suffix indicates the standard version with no special options. For applications requiring higher pressure ratings or different approvals, other model numbers within the LR250 series should be selected. Application Scenarios Can the 7ML5221-1DA11 be used in hazardous areas? Yes, the device has ATEX and IECEx approvals for use in explosive atmospheres. Specifically, it is certified as II 1/2 G Ex ia IIC T6...T1 Ga/Gb, suitable for Zone 0/1 applications. What is the process connection size for this model? The 7ML5221-1DA11 comes with a 1-1/2" BSP process connection. It is important to verify the exact connection type before installation to ensure compatibility with your tank nozzle. How do I configure the transmitter? Configuration can be done locally using the built-in display and keypad, or remotely via HART communication using Siemens SIMATIC PDM or a HART handheld communicator. The device supports standard HART commands for easy setup. What is the measuring range of the Siemens 7ML5221-1DA11? The measuring range is up to 20 meters (66 feet) depending on the process conditions and the dielectric constant of the medium. For liquids with low dielectric constants, the range may be reduced. Siemens 6ES7214-1BH50-0XB0 PLC CPU (Type-1) Siemens 6ES7231-4HF50-0XB0 Analog Input Module Siemens 6ES7231-5PD50-0XB0 Analog RTD Module Siemens 6ES7231-5QF50-0XB0 Analog TC Module (S7-1200) Siemens 6ES7233-4HF50-0XB0 Analog IO Module (SM 1234) Siemens 6ES7216-2BD23-0XB0 PLC CPU (Type-2) Siemens 6ES7223-1BH22-0XA0 PLC IO Module (Type-1) Siemens 6ES7223-5PH50-0XB0 PLC IO Module (Type-2)