The SITRANS FM MAG 5100 W is an industrial-grade electromagnetic flow sensor engineered for precision liquid velocity measurement across groundwater abstraction, municipal drinking networks, water distribution pipelines, and wastewater treatment infrastructure.

High-Accuracy Flow Metering with the SITRANS FM MAG 5100 W

Operating under Faraday’s law of electromagnetic induction, the SITRANS FM MAG 5100 W measures conductive liquid flow entirely independent of fluid viscosity, density, operating line pressure, or suspended solid concentration. Its unrestricted full-bore design eliminates moving internal components, preventing mechanical wear and eliminating hydraulic pressure drop across critical pumping mains.

Featuring a unique conical flow path configuration in lower pipe diameters, the sensor artificially increases fluid velocity across the measurement zone. This patented geometry stabilizes the magnetic field response, ensuring reliable low-flow detection and repeatable signal integrity even during seasonal consumption drops or variable distribution cycles.

Key Features and Engineering Advantages

• Conical Bore Geometry: Increases flow velocity across electrodes to optimize low-flow accuracy without requiring external inline reducers.
• Rugged Liner Formulations: High-grade NBR hard rubber and drinking-water certified EPDM liners withstand abrasive sediment and municipal disinfection chemicals.
• Hastelloy C Electrodes: High-alloy measuring and grounding electrodes ensure dependable signal transmission while detecting empty pipe conditions automatically.
• Submersible IP68 Protection: Factory potting and hermetically sealed terminal junction boxes permit long-term underground burial or permanent chamber submersion.
• Plug-and-Play SENSORPROM: Pre-programmed EEPROM memory module automatically uploads sensor calibration parameters, serial numbers, and tag settings directly into the connected converter.

Technical Specifications

Industrial Applications and Process Integration

The SITRANS FM MAG 5100 W is designed for municipal, civil, and industrial water infrastructure operations, including:

• Potable water custody transfer stations, distribution grid metering, and DMA leak detection loops.
• Groundwater extraction boreholes, raw surface water intake canals, and filtration skids.
• Sewage treatment facilities, wastewater discharge monitoring, and aeration basin feed pipes.
• Chilled water distribution, industrial cooling tower circuits, and agricultural irrigation networks.

Frequently Asked Questions

Which transmitters can be combined with this flow sensor?
The sensor pairs natively with Siemens SITRANS FM converters, including the economical MAG 5000 for standard applications, the high-precision digital MAG 6000 with advanced bus communications (HART, Modbus RTU, Profibus), or the battery-powered MAG 8000 series.

Does the sensor require grounding rings when installed in plastic piping?
While the sensor comes standard with built-in Hastelloy grounding electrodes that eliminate grounding rings in many conductive pipelines, non-conductive plastic, PVC, or lined metal pipes may require grounding rings to ensure stable voltage reference in electrically noisy environments.

How does the SENSORPROM memory unit simplify field replacement?
The removable SENSORPROM chip stores factory calibration data, sensor geometry constants, and site configuration tags. When replacing or servicing a transmitter converter, the chip automatically transfers all operational profiles without requiring manual recalibration or programming.