The most advanced magnetic flowmeter comes with built-in meter verification and built-in diagnostics to help you efficiently manage your entire production process.

Magnetic Flowmeter Application

It is used in various industries such as wastewater treatment, pharmaceutical, chemical, food processing, etc. Their tools are very easy to maintain as they have no moving parts. Therefore, they are very reliable and accurate. These meters are also used to measure the flow of various liquids. Since their instruments are available with different inserts, they are primarily used for a variety of sanitary and hygienic purposes. Furthermore, this device is also used for efficient handling of corrosive liquids.

There are many manufacturers who spend a lot of money on research and development to improve the performance of their meters. Their desire to expand the reach of their tools has led to the introduction of smart wireless networks; meter self-test and other similar features and diagnostics that make meter installation and use easier than ever.

How does a magnetic flowmeter work?

So, the devices work according to the principle of operation based on Faraday’s law of electromagnetic induction. According to this principle, a voltage can be induced in a conductor moving in a magnetic field. The magnitude of the induced voltage is directly proportional to the speed of the conductor. In a magnetic flow meter, the fluid acts as a conductor and sensors containing electrodes detect the generated voltage. A transducer inside the flowmeter amplifies the voltage.

Magnetic Flowmeter Features

Make sure the flow meter is properly grounded to ensure accurate instrument operation. Very often meters are not properly grounded, especially in new installations. This is because the module does not correctly reference the process. Improper grounding can also occur in existing installations. For example, corrosion from existing environmental conditions can cause serious damage to grounding wiring. This allows the sensor electrodes to pick up electrical noise, which affects not only the signal-to-noise ratio, but also the stability of the transmitter output signal.

It is important not to overlook any grounding problems, as this can lead to serious problems with the device. Typically, the performance of this instrument can be affected by three types of process noise, including 1 / f noise, white noise, and peak noise, resulting in inaccurate flow results.

Limitations

The fluid to be measured must meet certain conductivity conditions.

For accurate results, the liquid in the pipe must be completely full.

Air and gas bubbles in the liquid will cause errors. With some liquids, the electrodes can scale and affect the output signal. However, this can be remedied by cleaning the electrodes.

Final thoughts

Today, most process-oriented industries face the constant challenges of increasing production levels without sacrificing quality and with less labor and costs. This is where a smart device likes a measurement device can help, offering you top-notch diagnostic capabilities. This can help you develop new and effective preventive and predictive maintenance strategies, thereby increasing the uptime of your plant.

By peter