Electronic circulate meter

Electronic circulate meters are industrial digital move meters used for fluid move measurement. In many software situations, individuals typically use digital flowmeter is electromagnetic flowmeter.
Electronic flowmeter sorts, such as electromagnetic flowmeter, vortex flowmeter and ultrasonic flowmeter. Electronic flowmeter for industrial liquids, water, natural fuel, gasoline, gasoline, air. Electronic flowmeter converts the monitored fluid flow into an electronic sign. This contains pulse signals, 4-20mA normal signals, and so forth.
They aren’t totally electronic in nature, but they symbolize a logical grouping of circulate measurement technologies. All of these meters haven’t any transferring elements. They perform through highly refined electronics and circuitry.
Table of Contents

What is an electronic flow meter?

Electronic circulate meter products

Electronic flowmeter varieties and working principle

Electromagnetic flow meter

Advantages of using electromagnetic flowmeter

Disadvantages of utilizing electromagnetic flow meters

Vortex circulate meter

Ultrasonic move meter

Advantages of ultrasonic flowmeters

Disadvantages of ultrasonic flow meters

How to choose on your electronic move meter?

What is an electronic flow meter?

A circulate meter is a device used to measure the volume or mass of a gasoline or liquid. Flow meters have many names depending on the precise trade, similar to flow meters, flow indicators, liquid meters, move sensors, circulate meters, and so forth.
Electronic flow meters are industrial digital move meters used for liquid flow measurement. Common forms of digital circulate meters are electromagnetic, vortex and ultrasonic move meters.
Electromagnetic flowmeters are basically probably the most straightforward electrical flowmeters with a primary working precept derived from Faraday’s Law. Vortex flowmeters depend on piezoelectric sensors to detect vortex currents coming off a fixed shedding bar. And ultrasonic flowmeters owe their successful software to stylish digital sign processing.
Electronic circulate meter merchandise

AYT Digital Liquid Magnetic Flow Meter

Learn More AYT Digital Liquid Magnetic Flow Meter

AFT Split Type Electromagnetic Flow Meter

Learn More AFT Split Type Electromagnetic Flow Meter

ACT Insertion Type Magnetic Flowmeter

Learn More ACT Insertion Type Magnetic Flowmeter

AQT Steam Vortex Flow Meter

Learn More AQT Steam Vortex Flow Meter

TUF Clamp On Ultrasonic Flow Meter

Learn More TUF Clamp On Ultrasonic Flow Meter

MHC Portable Ultrasonic Doppler Flow Meter

Learn More MHC Portable Ultrasonic Doppler Flow Meter

Electronic flowmeter types and dealing principle

Simply put, the working principle of electronic flowmeter is to convert the flow price of the measured fluid into an electronic signal through the flow sensor assembly. And could be circulate display and sign output. For example, show instantaneous flow, cumulative move, and so on. Roughly divided into the next 3 classes.
Electromagnetic flow meter

Electromagnetic circulate meters work based mostly on Faraday’s precept of electromagnetic induction. Electromagnetic flowmeter is also referred to as solely conductive fluid can be used.
Magnetic flow meter consists of a non-magnetic pipe lined with an insulating materials. A pair of magnetic coils are positioned at right angles to the move and a pair of electrodes penetrate the pipe and its lining. When electrically conductive fluid flows by way of the pipe underneath the affect of a particular density magnetic subject generated by the electromagnetic coil, the quantity of voltage (E) generated across the electrodes is predicted by Faraday’s law to be proportional to velocity (V) proportional to the liquid.
E = KV

Where

E = the quantity of voltage generated at the electrode

V = velocity of the fluid flowing via the pipe

K=calibration constant of the meter

Advantages of using electromagnetic flowmeter

High accuracy and stability

Self-checking

Bi-directional measurement

No stress loss

No transferring parts

Possible for hygienic purposes

Available in massive sizes

Disadvantages of utilizing electromagnetic circulate meters

Cannot be used to measure gases, vapors and liquids containing large amounts of gasoline

Can not be used to measure liquid media with very low conductivity Electromagnetic flowmeter cannot measure media similar to petroleum merchandise or organic solvents

Can not be used to measure high temperature media. Currently restricted by the general industrial electromagnetic flowmeter measuring tube lining materials and electrical insulation materials.
Electromagnetic flowmeter is prone to the influence of external electromagnetic interference.
Vortex flow meter

Vortex move meters are typically made from 316 stainless steel or Hastelloy and include a blunt body, a vortex sensor meeting, and transmitter electronics. When pressure gauge octa -streamlined object (also called an obtuse body) is positioned in the path of a high Reynolds quantity circulate, the fluid will alternately separate from the thing on its downstream sides and, as As the boundary layer separates and coils back on itself, the fluid forms vortices. These vortices lead to areas of pressure fluctuations detected by piezoelectric or capacitive sensors. Fluid velocity is dependent upon the frequency of the generated vortices and the Strouhal quantity and is given by the following equation

V = (fxh)/S

Where

V = average velocity of the fluid flow

f = frequency of the generated vortex

h = width of the obtuse physique

S = number of Strouhal

S varies with Reynolds quantity; however, it is virtually constant over a variety of flow charges.
In follow, a k-factor representing the number of vortices generated per unit volume is used as a substitute of S. Thus the volumetric circulate price is

Q = f/K

Vortex circulate meters usually are not typically really helpful for dosing or other intermittent circulate functions. This is as a outcome of the drip move setting of the dosing station may be beneath the minimum Reynolds number restrict of the meter. The smaller the total batch, the extra important the resulting error could additionally be.
Low pressure (low density) gases will not generate sturdy sufficient stress pulses, especially at low fluid velocities. Therefore, in this type of service, the gauge is likely to have a poor vary and won’t be able to measure low flow rates. On the opposite hand, if the lowered vary is suitable and the meter is sized for regular move, then a vortex flowmeter should be considered.
The permanent stress loss by way of the vortex flowmeter is about half that of an orifice flowmeter with about two velocity heads. (Velocity head is outlined as V2/g, the place V is the flow price and g is the gravitational constant in constant models.) If the piping and instrumentation are properly sized and similar, the stress drop could also be only a few pounds per sq. inch. However, downsizing (installing smaller than line dimension gauges) to increase the Reynolds quantity can increase the head loss to greater than 10 psi. It is also important to ensure that the shrink pressure is not decrease than the vapor pressure of the method fluid, as this can result in cavitation. Naturally, if the again pressure on the meter is lower than the steam strain, the process fluid will flash and the meter studying might be meaningless.
The primary advantages of vortex move meters are their low sensitivity to adjustments in course of situations and low wear relative to orifice or turbine flowmeters. In addition, initial and maintenance costs are very low. For these reasons, they’ve gained wider acceptance among customers.
Ultrasonic circulate meter

The speed of sound propagation in a fluid is decided by the density of the fluid. However, if the density is constant, the time of passage (or reflection) of ultrasound can be used to determine the velocity of the flowing fluid.
Ultrasonic circulate meters measure fluid velocity by transmitting high-frequency sound waves alongside the fluid flow path. Fluid motion affects the propagation of those sound waves, which can then be Then it can be measured to deduce the fluid velocity. There are two major types of ultrasonic flowmeters: Doppler and transmission time. Both forms of ultrasonic flowmeters work by transmitting Both types of ultrasonic flow meters work by transmitting high-frequency sound waves into the fluid stream (incident pulse) and analyzing the obtained pulses.
Doppler move meters make the most of the Doppler impact, which is a frequency shift caused by waves emitted or reflected from a shifting object. Doppler circulate meters replicate sound waves from bubbles or particles in the air stream Particulate materials within the reflection of sound waves, measuring the frequency shift and inferring the fluid velocity and thus the move price based mostly on the magnitude of that frequency shift.
In the design of a transit time ultrasonic flowmeter, the time of flight of the ultrasonic sign is measured between two transducers, one upstream and one downstream. With move or The difference in time spent against the flow determines the fluid velocity from which the circulate price is inferred.
Advantages of ultrasonic flowmeters

The electronics in the ultrasonic flowmeter embody an ultrasonic flowmeter detector that compensates and adapts to adjustments in fluid distribution, fluid kind and pipe materials.
Portable ultrasonic flowmeter converters can be utilized as a direct methodology of effectively determining circulate in comparison with other move systems.
Compared to other mechanical move meters, ultrasonic flow meter converters are inexpensive to use and keep as a outcome of they haven’t any transferring elements in these flow meters.
They are designed to be very precise and do not impede the circulate of liquids, to enable them to be used for sanitary, corrosive and abrasive liquids.
Disadvantages of ultrasonic circulate meters

The primary disadvantage of ultrasonic flowmeters is value. Compared to different forms of mechanical circulate meters, circulate meters are very pricey .

Compared to mechanical move meters, ultrasonic move meters are extra complicated and subsequently require experts to restore and maintain the circulate meters.
How to choose on your digital move meter?

The necessary elements when selecting a proper flow meter device are

Media to be measured

Accuracy

Cost

Flow range

Operating requirements

Maintenance

Lifetime

Delivery time

These components are kind of interrelated. For example – the worth of a flow meter increases with accuracy and quality of life. Flowmeter calibration and maintenance are additionally important to consider.
More articles on flowmeters:
Chilled water circulate meter

Ultrasonic circulate meter working principle

Difference between move meter and circulate transmitter

Working principle of rotameter
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Electronic move meters are industrial digital circulate meters used for fluid flow measurement. In many application eventualities, individuals often use digital flowmeter is electromagnetic flowmeter.
Electronic flowmeter types, corresponding to electromagnetic flowmeter, vortex flowmeter and ultrasonic flowmeter. ไดอะแฟรม ซีล for industrial liquids, water, natural gas, gasoline, gas, air. Electronic flowmeter converts the monitored fluid move into an electronic signal. This includes pulse alerts, 4-20mA standard signals, etc.
They usually are not totally electronic in nature, however they characterize a logical grouping of flow measurement applied sciences. All of these meters have no moving elements. They function by way of extremely sophisticated electronics and circuitry.
Table of Contents

What is an digital flow meter?

Electronic move meter products

Electronic flowmeter sorts and working precept

Electromagnetic flow meter

Advantages of utilizing electromagnetic flowmeter

Disadvantages of using electromagnetic circulate meters

Vortex move meter

Ultrasonic circulate meter

Advantages of ultrasonic flowmeters

Disadvantages of ultrasonic move meters

How to choose your electronic move meter?

What is an digital move meter?

A circulate meter is a tool used to measure the volume or mass of a fuel or liquid. Flow meters have many names depending on the particular business, such as move meters, circulate indicators, liquid meters, move sensors, move meters, and so forth.
Electronic circulate meters are industrial digital flow meters used for liquid move measurement. Common forms of electronic move meters are electromagnetic, vortex and ultrasonic circulate meters.
Electromagnetic flowmeters are essentially the most easy electrical flowmeters with a primary working principle derived from Faraday’s Law. Vortex flowmeters rely on piezoelectric sensors to detect vortex currents coming off a fixed shedding bar. And ultrasonic flowmeters owe their profitable utility to stylish digital signal processing.
Electronic circulate meter products

AYT Digital Liquid Magnetic Flow Meter

Learn More AYT Digital Liquid Magnetic Flow Meter

AFT Split Type Electromagnetic Flow Meter

Learn More AFT Split Type Electromagnetic Flow Meter

ACT Insertion Type Magnetic Flowmeter

Learn More ACT Insertion Type Magnetic Flowmeter

AQT Steam Vortex Flow Meter

Learn More AQT Steam Vortex Flow Meter

TUF Clamp On Ultrasonic Flow Meter

Learn More TUF Clamp On Ultrasonic Flow Meter

MHC Portable Ultrasonic Doppler Flow Meter

Learn More MHC Portable Ultrasonic Doppler Flow Meter

Electronic flowmeter varieties and working precept

Simply put, the working principle of electronic flowmeter is to convert the flow rate of the measured fluid into an digital sign through the move sensor assembly. And could be flow display and sign output. For instance, display instantaneous circulate, cumulative move, and so forth. Roughly divided into the following 3 classes.
Electromagnetic flow meter

Electromagnetic move meters work based on Faraday’s principle of electromagnetic induction. Electromagnetic flowmeter is also referred to as only conductive fluid can be utilized.
Magnetic move meter consists of a non-magnetic pipe lined with an insulating materials. A pair of magnetic coils are positioned at proper angles to the circulate and a pair of electrodes penetrate the pipe and its lining. When electrically conductive fluid flows via the pipe under the affect of a particular density magnetic subject generated by the electromagnetic coil, the quantity of voltage (E) generated across the electrodes is predicted by Faraday’s legislation to be proportional to velocity (V) proportional to the liquid.
E = KV

Where

E = the amount of voltage generated on the electrode

V = velocity of the fluid flowing via the pipe

K=calibration constant of the meter

Advantages of utilizing electromagnetic flowmeter

High accuracy and stability

Self-checking

Bi-directional measurement

No strain loss

No shifting parts

Possible for hygienic functions

Available in massive sizes

Disadvantages of utilizing electromagnetic flow meters

Cannot be used to measure gases, vapors and liquids containing massive amounts of gas

Can not be used to measure liquid media with very low conductivity Electromagnetic flowmeter cannot measure media corresponding to petroleum merchandise or organic solvents

Can not be used to measure high temperature media. Currently restricted by the general industrial electromagnetic flowmeter measuring tube lining materials and electrical insulation materials.
Electromagnetic flowmeter is susceptible to the influence of exterior electromagnetic interference.
Vortex circulate meter

Vortex move meters are usually made from 316 chrome steel or Hastelloy and embody a blunt body, a vortex sensor meeting, and transmitter electronics. When a non-streamlined object (also referred to as an obtuse body) is placed in the path of a high Reynolds quantity move, the fluid will alternately separate from the object on its downstream sides and, as As the boundary layer separates and coils again on itself, the fluid varieties vortices. These vortices lead to areas of pressure fluctuations detected by piezoelectric or capacitive sensors. Fluid velocity depends on the frequency of the generated vortices and the Strouhal number and is given by the next equation

V = (fxh)/S

Where

V = common velocity of the fluid flow

f = frequency of the generated vortex

h = width of the obtuse body

S = variety of Strouhal

S varies with Reynolds quantity; nonetheless, it is virtually fixed over a extensive range of move charges.
In follow, a k-factor representing the variety of vortices generated per unit quantity is used as an alternative of S. Thus the volumetric flow price is

Q = f/K

Vortex circulate meters usually are not usually really helpful for dosing or other intermittent flow applications. This is as a outcome of the drip move setting of the dosing station could also be under the minimum Reynolds quantity limit of the meter. The smaller the entire batch, the extra significant the ensuing error could also be.
Low strain (low density) gases will not generate strong sufficient stress pulses, especially at low fluid velocities. Therefore, in this sort of service, the gauge is likely to have a poor range and will be unable to measure low circulate charges. On the opposite hand, if the reduced range is appropriate and the meter is sized for normal flow, then a vortex flowmeter should be thought-about.
เกจวัดแรงดัน through the vortex flowmeter is about half that of an orifice flowmeter with about two velocity heads. (Velocity head is outlined as V2/g, where V is the flow fee and g is the gravitational constant in constant units.) If the piping and instrumentation are correctly sized and similar, the strain drop could additionally be just a few kilos per square inch. However, downsizing (installing smaller than line dimension gauges) to increase the Reynolds quantity can increase the head loss to more than 10 psi. It is also important to ensure that the shrink strain is not decrease than the vapor pressure of the method fluid, as this can result in cavitation. Naturally, if the again pressure on the meter is decrease than the steam strain, the process fluid will flash and the meter reading shall be meaningless.
The main advantages of vortex move meters are their low sensitivity to changes in process circumstances and low put on relative to orifice or turbine flowmeters. In addition, preliminary and maintenance costs are very low. For these causes, they’ve gained wider acceptance among customers.
Ultrasonic circulate meter

The speed of sound propagation in a fluid depends on the density of the fluid. However, if the density is constant, the time of passage (or reflection) of ultrasound can be utilized to determine the velocity of the flowing fluid.
Ultrasonic move meters measure fluid velocity by transmitting high-frequency sound waves alongside the fluid circulate path. Fluid motion impacts the propagation of these sound waves, which might then be Then it may be measured to deduce the fluid velocity. There are two primary forms of ultrasonic flowmeters: Doppler and transmission time. Both types of ultrasonic flowmeters work by transmitting Both kinds of ultrasonic flow meters work by transmitting high-frequency sound waves into the fluid stream (incident pulse) and analyzing the obtained pulses.
Doppler move meters make the most of the Doppler effect, which is a frequency shift brought on by waves emitted or reflected from a moving object. Doppler circulate meters reflect sound waves from bubbles or particles in the air stream Particulate material within the reflection of sound waves, measuring the frequency shift and inferring the fluid velocity and thus the move fee based on the magnitude of that frequency shift.
In the design of a transit time ultrasonic flowmeter, the time of flight of the ultrasonic sign is measured between two transducers, one upstream and one downstream. With move or The distinction in time spent towards the circulate determines the fluid velocity from which the circulate price is inferred.
Advantages of ultrasonic flowmeters

The electronics in the ultrasonic flowmeter embody an ultrasonic flowmeter detector that compensates and adapts to modifications in fluid distribution, fluid kind and pipe materials.
Portable ultrasonic flowmeter converters can be used as a direct technique of successfully determining flow in comparison with other flow systems.
Compared to different mechanical flow meters, ultrasonic move meter converters are cheap to make use of and preserve as a outcome of they don’t have any moving components in these move meters.
They are designed to be very precise and do not impede the flow of liquids, so they can be used for sanitary, corrosive and abrasive liquids.
Disadvantages of ultrasonic flow meters

The major drawback of ultrasonic flowmeters is price. Compared to different kinds of mechanical flow meters, circulate meters are very expensive .

Compared to mechanical circulate meters, ultrasonic move meters are extra complicated and subsequently require experts to restore and keep the circulate meters.
How to choose your electronic flow meter?

The important factors when selecting a proper flow meter gadget are

Media to be measured

Accuracy

Cost

Flow vary

Operating requirements

Maintenance

Lifetime

Delivery time

These elements are kind of interrelated. For instance – the price of a circulate meter will increase with accuracy and quality of life. Flowmeter calibration and upkeep are also essential to consider.
More articles on flowmeters:
Chilled water circulate meter

Ultrasonic flow meter working principle

Difference between flow meter and flow transmitter

Working precept of rotameter

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