A magnetic flow meter measures the rate of flow regardless of the direction of the flow. In the event that you need to make changes on the spot, the meter is an ideal choice for your needs. This article will cover the main characteristics of magnetic flow meter. It will also help you decide which one to buy. This article will also help you choose the best one based on your needs. In addition to this, you will also visit https://www.silverinstruments.com/ to find out how to select the best grounding ring and how to read the display on a magnetic flow meter.
Table of Contents
Magnetism
Magnetic flow meters measure the flow of a liquid by creating a magnetic field that induces a voltage in the liquid. This voltage is detected by electrodes inside the pipe and is proportional to the velocity of the fluid flowing through the meter. A magnetic flow meter is an extremely accurate way to measure flow rate, as it has no moving parts, low pressure drop, and is therefore suitable for dirty or corrosive fluids.
Electromagnetic induction
An electromagnetic flow meter works by using fluid flow as a conductor. The meter consists of an electrically insulated pipe with a pair of electrodes mounted opposite to each other flush with the inside wall. The electrodes produce a small emf as the fluid flows through the pipe. The induced voltage is then converted to a measurable level using an amplifier. This technique is not suitable for liquids with high viscosity, or for high-temperature fluids.
Injection-style flow meter
An injection-style magnetic flow meter is one of the most common types of flow meters available. The name suggests that it is installed in a pipe by screwing it into the joint. Since there are no moving parts, they require little maintenance and repair. Additionally, they can withstand high flows. The FMG200 series has flow rates as low as 0.38 LPM. This flow meter is ideal for a variety of applications.
Grounding ring
If you have piping adjacent to your magnetic China Flow Meter, you need a grounding ring. This component is integral to the flow sensor and serves to eliminate noise and extraneous signals. Grounding rings are available in various materials and can be installed before or after the flow meter. They are especially useful for applications where the fluid can be moderately abrasive, making it important to ground unwanted signals before measuring them.
Noise
Noise is an issue with many magnetic flow meters. This is because the noise varies with the process conditions. Noise from ac magmeters, for example, is induced by a small voltage in the electrode loop. In some cases, this noise can be eliminated by filtering the signal. Noise from high-signal magnetic flow meters may be reduced by using digital signal processing. However, this technique has limitations. If it is not used correctly, it may lead to inaccurate results.
Complexity
The complexity of magnetic flow meters varies from simple to complex, depending on the fluid being measured. In general, electromagnetic “mag” meters are very accurate when measuring conductive materials, such as water, air, and gas. They can be calibrated with water or other conductive fluids. Because they do not require additional adjustments, these meters are a great choice for industries that need accurate measurements. Listed below are some of the common types of magnetic flow meters.
