Key Highlights

1. How Does the Mag-11 Electromagnetic Flow Meter Work?

The Mag-11 electromagnetic flow meter operates according to Faraday’s Law of Electromagnetic Induction.

When a conductive liquid flows through the measuring tube, it passes through a magnetic field generated inside the sensor. As the conductive liquid moves through this magnetic field, a voltage is induced across the measuring electrodes. The induced voltage is proportional to the velocity of the liquid, allowing the flow meter to calculate the volumetric flow rate.

Because the measurement is based on the electrical conductivity and movement of the liquid rather than mechanical components, the Mag-11 has no moving parts and does not require a mechanical impeller or restriction inside the flow path. This design helps avoid additional pressure loss and reduces the possibility of mechanical wear.

The Mag-11 is designed for conductive liquids with a conductivity of greater than 5 μS/cm. It can be used for general conductive liquids as well as strong acids, alkalis and liquid-solid two-phase media such as mud and paper pulp.

3. How Should the Electrode and Lining Materials Be Selected?

4. What Are the Main Specifications of the Mag-11?

5. How Should the Measuring Range Be Selected?

Correct measuring-range selection is important for obtaining stable and accurate flow measurement.

The Mag-11 datasheet recommends selecting a measuring range that is larger than the actual maximum measured flow, while keeping the selected range reasonably close to the commonly expected operating flow.

For normal applications, it is recommended that the common measured flow falls within approximately 50%–80% of the selected measuring range.

The Mag series electromagnetic flow meter can also have its measuring range modified according to actual application requirements. The maximum velocity can reach 12 m/s.

For example, when selecting a flow meter for an industrial water pipeline, users should consider:

• Pipe diameter
• Normal operating flow
• Maximum flow
• Minimum flow
• Medium conductivity
• Medium temperature
• Operating pressure
• Corrosiveness and abrasiveness of the medium

Providing these parameters before selection helps ensure that the electromagnetic flow meter is configured appropriately for the actual process conditions.

6. What Output and Communication Options Are Available?

The Mag-11 supports multiple output and communication options for integration with industrial control and monitoring systems.

The standard current output is 4–20mA, which can be configured for flow or energy according to the application. Pulse output is also available, with a maximum output frequency of 5 kHz.

For digital communication, the converter supports RS485 with MODBUS or BACNET, while Bluetooth and GPRS communication options are also available.

These interfaces allow the electromagnetic flow meter to be integrated into different monitoring architectures, including:

• PLC control systems
• SCADA systems
• Industrial monitoring systems
• Remote data monitoring
• Building or water management systems

The Mag-11 is available in both compact and remote converter configurations, allowing users to select the structure according to installation conditions.

7. What Applications Is the Mag-11 Electromagnetic Flow Meter Suitable For?

Because the Mag-11 is designed for conductive liquids and supports different electrode and lining materials, it can be used across a wide range of industrial and water-related applications.

The thread-connection version is particularly designed for low-flow measurement and is available from DN10 to DN40. The product description notes that it can accurately measure flows of several liters per hour, with the Mag-11 series capable of measuring flows as low as approximately 2 L/h under suitable conditions.

8. Why Choose the Mag-11 Electromagnetic Flow Meter?

The Mag-11 combines electromagnetic measurement technology with flexible material and communication options to address different industrial flow measurement requirements.

Its no-moving-parts design helps reduce mechanical wear, while the absence of a flow-restricting baffle minimizes pressure loss and the risk of clogging. The wide DN10–DN2000 diameter range allows the same series to cover both small and large pipeline applications.

For corrosive, abrasive or high-temperature media, users can select suitable electrode and lining materials based on the actual process conditions. The meter also supports forward and reverse flow measurement, providing flexibility for systems where flow direction may change.

With compact and remote configurations, multiple power supplies, 4–20mA and pulse outputs, and communication options such as MODBUS, BACNET, Bluetooth and GPRS, the Mag-11 provides a flexible solution for water, wastewater, chemical, pulp, slurry and other conductive-liquid applications.