Transit Time Ultrasonic Flow Meter is a multi-channel flow meter. A velocity flow meter that measures the flow rate of the medium using the time difference method.

Transit Time Ultrasonic Flow Meter is the flow velocity obtained by measuring the difference in the propagation time of the ultrasonic pulse in the measured medium. When multiple beams of ultrasonic waves propagate in a flowing fluid, they carry information about the fluid velocity. The flow rate of the fluid can be detected by the received ultrasonic wave and converted into flow rate. The use of ultrasonic flowmeter eliminates the need to install measuring elements in the fluid. No additional resistance is generated.

Features of Multipath Transit Time Ultrasonic Flow Meter

• High measurement accuracy:
  • The multi-channel ultrasonic flowmeter calculates the surface average velocity and flow rate by double integration of the velocity distribution and area distribution. It is not affected by the Reynolds number during the measurement, so high accuracy and high repeatability can be obtained.
• Two-way measurement: It can measure the forward and reverse flow of the measured fluid.
• Large measuring range: The measuring range of flow velocity can reach 0.03m/s～20m/s.
• Wide application range:
  • The nominal diameter of the measuring pipe can reach DN25mm～15000mm.
  • The measuring width of the open channel can reach 30 m.
  • The measuring width of the river can reach 150m.
• Good low flow rate:
  • The multi-channel ultrasonic flowmeter can obtain high accuracy in a more complicated state with low flow rate. The problem of inaccurate measurement in the low flow rate area is solved.
• Dry-type verification technology:
  • It can realize online verification, which solves the problem that large-diameter flow meters and flow meters in use cannot be verified in real flow. It also reduces the cost of verification.
• Continuous flow online installation and maintenance:
  • It can be installed and maintained online to avoid the loss caused by the current cut. No need to set up bypass pipelines, reducing construction and maintenance costs.
• Low pressure loss: no drive, protruding and other obstructive parts, no pressure loss.
• Short upstream and downstream straight pipe sections required: accuracy can be guaranteed when the upstream 5D and downstream 2D ​​(D is the pipe diameter) are met.
• Can display and transmit pressure signal:
  • Install a pressure sensor to measure fluid pressure, which can be displayed on the secondary meter and realize communication.
• With RTU function:
  • Can store positive and negative instantaneous flow, cumulative flow, flow rate, pressure, power failure records and other information.
  • You can download and store data on-site. It can also be remotely transmitted to the upper computer for control and management.

Extended Reading: Inline Ultrasonic Flow Meter

Specifications of Multipath Transit Time Ultrasonic Flow Meter

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Transit Time Ultrasonic Flow Meter Principle

The time difference method is actually based on the vector superposition of the ultrasonic propagation velocity and the liquid velocity. It can be simply compared to the process of ferrying on a river.
Although the speed of the ferry itself is the same when flowing downstream and upstream.

However, due to the influence of the current speed, the time required for the ferry to reach the opposite bank is less when the flow is downstream than when it is upstream. The greater the flow velocity, the faster the downstream speed, and the longer the time required for the upstream flow. The time difference between the forward and reverse flow is proportional to the flow velocity.

Transit time ultrasonic flow meter equation

The difference in the upstream and downstream measurements taken over the same path is used to calculate the flow through the pipe:

V = K • D/sin2θ • 1/(T₀ – t)² ΔT

Where:

V = Mean velocity of flowing fluid
K = Constant
D = Inner diameter of the pipe
θ = Incident angle of ultrasonic waves
T₀ = Zero flow transit time

ΔT = T₁ – T₂
T₁ = Transit time of waves from upstream transmitter to downstream receiver
T₂ = Transit time of waves from downstream transmitter to upstream transmitter
t = Transit time of waves through pipe wall and lining

The above equation shows that the flow velocity of the fluid is directly proportional to the difference in the upstream and downstream measurements.

The transit time ultrasonic flow meter has three possible transducer configurations: Z, V and W.

All are recognized as a single measuring path, whereas the ultrasonic beam follows a single path. In all three configurations, the output produced by the transducers is converted to a current, frequency or voltage signal. The preferred configuration is determined by factors such as:

• Pipe size
• Space available for mounting the transducers
• Condition of the internal walls of the pipe
• Type of lining
• The characteristics of the flowing liquid

In the “Z” configuration, the transducers are positioned on opposite sides of the pipe with one downstream from the other.

Usually, the distance downstream is approximately D/2, where D equals the diameter of the pipe. The optimum distance is calculated by a converter. This arrangement is only advisable under conditions where there is limited space, high turbidity, a mortar lining or a thick build-up of scale on the interior walls of the pipe. It should be avoided for installations on small pipes, where the accuracy of its measurements tends to degrade.

The “V” configuration is recommended for most installations. This arrangement places the two transducers on the same side of the pipe within approximately a diameter of the pipe from each other. A rail attachment clamps on the pipe and allows the transducers to be slid horizontally to position them the calculated distance apart.

A “W” configuration is most often used for installations on pipes with diameters of ½ inch to 1½ inches. In this arrangement, the ultrasonic signal rebounds from the wall three times; therefore, it must travel a greater distance. High turbidity liquids, and scale or deposit build-up on the interior of the pipe wall can diminish accuracy.

Extended reading: Ultrasonic flow detectors types

More Transit Time Ultrasonic Flow Meter

Sino-Inst, Manufacturer for Transit Time Ultrasonic Flow Meters. It can measure a single sound-conducting liquid medium. It can measure even liquids such as water, seawater, oil, and slurry.

Sino-Inst’s Transit Time Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Digital Ultrasonic water meter works with principle of ultrasonic time difference is used to measure the flow of liquid in the pipe.

Can be battery powered and wireless. For residential water, urban water, industrial water management.

Request a Quote

• Specifications
• Transducer
• Flow Range
• Features
• How it works

Specifications of Ultrasonic Water Meter

Item	Specification
Measurement Liquid	Water, Sewage, Seawater( Other liquid need to customized), the liquid should be full of the pipeline
Medium Temperature	0.1-30℃
Working Environment	Temperature：-10~45℃； Humidity≤100%（RH）
Working Pressure	1.6MPa(2.5MPa optional)
The sensitivity of upstream	U3
The sensitivity of downstream	D0
Climatic and mechanical	C class
Electromagnetic compatibility class	E2 class
Communication Interface	RS485/USART/Infrared
Output Signal	Two way OCT pulse output/TTL pulse output/One way4-20mA output
Power Supply	Built-in Lithium battery(3.6,19AhV)/DC8-36V power supply
Protection Class	IP68, can work 2 meters underwater
Digital Display	Multi-line 9 digital accumulative flow,4 digital display for instantaneous flow, varies of state prompt and units
Data Storage	EEPROM/FLASH, automatically record the accumulative flow of the last 512 days
Measurement Cycle	Measuring:1 times/second;Verification:4 times/second
Power Consumption	＜2.7AH/Year,6 years battery life

Read more about Everything You Need To Know About Electronic Flow Meters

Dual Channel Ultrasonic Water Meter Optional Transducer:

	DN15~DN40	Single channel, the copper material, forging technology
	DN50~DN150	Dual channel, nodular cast iron (304 stainless steel optional), integrated casting technology
	DN200~DN300	Dual channel

Dual Channel Ultrasonic Water Mete Flow range:

Norminal Diameter （mm）	Range than R	Flow（m³/h）
		Starting Flowrate	Minimum Flowrate Q1	Transitional Flowrate Q2	Permanent Flowrate Q3	Overload Flowrate Q4
DN15	200	0.003	0.0125	0.020	2.500	3.125
DN20	200	0.0035	0.016	0.026	3.200	4.000
DN25	200	0.007	0.020	0.032	4.000	5.000
DN32	200	0.010	0.032	0.050	6.300	7.875
DN40	200	0.015	0.100	0.160	20.000	25.000
DN50	100	0.030	0.400	0.640	40.000	50.000
DN65	100	0.059	0.630	1.008	63.000	78.750
DN80	100	0.064	1.000	1.600	100.000	125.000
DN100	100	0.094	1.600	2.560	160.000	200.000
DN125	100	0.120	2.000	3.200	200.000	250.000
DN150	100	0.270	2.500	4.000	250.000	312.500
DN200	100	0.315	4.000	6.400	400.000	500.000
DN250	100	0.508	4.000	6.400	400.000	500.000
DN300	100	0.770	6.300	10.080	630.000	787.500

Features of Ultrasonic Water Meter

• Initiating flow lower to millimeter grade 
• Multi line 9 digital LCD dispaly accumulative flow and 4 digital for instantaneous flow
• High reliability design, no moving part 
• Two channel isolated pulse output,pulse equivalent and output pulse can be arbitrary customed
• Two-wired system 4-20mA output optional 
• Built-in Lithium battery for 6 years life expectancy
• It can automatic power saving under empty pipe or the liquid static for a long time
• Resin vacuum sealed IP68 for long life and high expectancy Chronological cumulative record 
• Standard RS485 interfaceInfrared communication interface,support CJ-188 communication Support MODBUS, M-BUS communication protocol 
• TTL levels pulse output and USART interface,convenient to connect the low power consumption equipment 
• With the two channel PT1000 temperature transducer, which can realize the heat measurement

Ultrasonic Water Meter Working Principle

First of all, let’s start with the measurement principle of the ultrasonic water meter:

Ultrasonic water meters use the difference between the downstream and upstream propagation of sound waves in the water to obtain the flow velocity of the water through a measurement formula, thereby further obtaining the cumulative flow of water per unit time.

Then the component that emits sound waves and receives the return sound waves is called a transducer. An ultrasonic water meter with a pair of transducers is called a mono ultrasonic water meter.

In theory, the measurement accuracy of an ultrasonic water meter with more channels will be higher. Because the more sound channels, the wider the width of the water meter to measure the water flowing through the pipe section. The more the number of measurements, the more reliable the data obtained.

However, the subsequent change is also the substantial increase in cost. If it is not particularly necessary, it is recommended to use dual channels to meet the normal measurement requirements.

Generally speaking, two-channel ultrasonic water meters are only used for DN100 and above.

More about:

Ultrasonic flow meters types & technical guide

What is ultrasonic water meter

Ultrasonic water meter is a new type of water meter that detects the time difference caused by the speed change when the ultrasonic sound beam propagates in the water upstream and downstream, and analyzes and processes the water velocity to further accumulate the water flow.

Ultrasonic water meter is a fully electronic water meter manufactured with industrial-grade electronic components using the principle of ultrasonic time difference. Compared with mechanical water meters, it has high precision, good reliability, wide range ratio, long service life and no moving parts. No need to set parameters, installation at any angle, etc.

With excellent small flow detection capabilities, it can solve many problems of traditional water meters. More suitable for gradient charging of water charges. It is more suitable for the conservation and rational use of water resources. It has a broad market and application prospects.

Extended reading: Portable ultrasonic flow meter for water

Ultrasonic water meter accuracy

There are two types of ultrasonic water meter accuracy: Class 1 and Class 2.

Ultrasonic water meters supplied by Sino-Inst are generally Class 1 with an error of 1%.

Read more about: Ultrasonic flow meters types & technical guide

Ultrasonic water meter clamp-on

Ultrasonic Clamp on Flow Meter is composed of an integrated host and external clamp on sensors. Clamp on Flow Sensors are available at room temperature and high temperature.

Clamp on flow meter (Model: 2000) is composed of an integrated host and ultrasonic clamp on sensor. Clamp on flow meter is widely used in online flow measurement of various liquids. Just stick the external clamp sensor on the pipe surface. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow. The installation is convenient and quick, and the non-destructive installation is truly realized.

Clamp on Flow Meter Reference price: USD 470.00/pc

Sino-Inst offers a variety of  Ultrasonic flow meters for flow measurement. If you have any questions, please contact our sales engineers.

Extended Reading: Chilled Water Flow Meter

What are the different types of ultrasonic flow meter?

1. According to the measurement principle

(1) Time difference method ultrasonic flowmeter;
(2) Frequency difference method ultrasonic flowmeter;
(3) Phase difference method ultrasonic flowmeter;
(4) Doppler ultrasonic flowmeter;
(5) Ultrasonic flowmeters for partially full pipes and river channels that combine liquid level measurement and average flow velocity measurement.

2. According to the way of use

(1) Portable ultrasonic flowmeter;
(2) Fixed (standard pipe section) ultrasonic flowmeter.

3. According to the installation method of the transducer

(1) Standard pipe section ultrasonic flowmeter;
(2) Clip-on ultrasonic flowmeter;
(3) On-site hole-opening plug-in ultrasonic flowmeter.

4. According to whether the transducer is in contact with the fluid

(1) Immersion (contact) ultrasonic flowmeter;
(2) Non-invasive (non-contact) ultrasonic flowmeter.

5. According to the nature of the measured fluid

(1) Liquid ultrasonic flowmeter;
(2) Gas ultrasonic flowmeter.

6. According to the number of transducer channels

(1) Mono ultrasonic flowmeter;
(2) Two-channel ultrasonic flowmeter;
(3) Multi-channel ultrasonic flowmeter.

Extended reading: Portable ultrasonic flow meter for water

Magnetic water meter-ultrasonic water meter-mechanical water meter

9 points: the difference between electromagnetic water meter-ultrasonic water meter-mechanical water meter

The following are some of the differences between these three tables summarized by Sino-Inst:

1. Water quality requirements

Electromagnetic water meter: not affected by impurities such as sand, weeds, and chemical substances in the medium, but interfered by magnetic substances;
Ultrasonic water meter: It is not interfered by impurities, chemical substances and magnetic substances in the medium such as sand, weeds, etc.;
Mechanical water meter: The water quality similar to tap water must be used, and the liquid must not contain impurities such as rust, gravel, aquatic plants, etc.

2. Turndown ratio

Electromagnetic water meter: low flow rate measurement performance is poor, medium and high flow rate measurement performance is stable. The coverage of the turndown ratio does not cover the small flow area;
Ultrasonic water meter: The range is generally better than 100:1, the initial flow velocity is extremely low, which can be lower than 0.01m/s, and the effective measurement range is large, which can avoid running, emitting, dripping, and leaking;
Mechanical water meter: It is more difficult to make high range ratio products, and the range ratio of conventional water meters is generally below 80

3. Protection level

Electromagnetic water meter: electronic products, the protection level strictly meets IP68 requirements, and the quality must be qualified.
Ultrasonic water meter: electronic products, the protection level strictly meets IP68 requirements, and must be qualified by products;

Mechanical water meter: IP68

4. Pressure loss

Electromagnetic water meter: meet the minimum level of pressure loss ΔP10;
Ultrasonic water meter: meet the minimum level of pressure loss ΔP10
Mechanical water meter: The force loss is very large, about ΔP63

5. Wearability

Electromagnetic water meter: no mechanical moving parts, never wear, accuracy has little relationship with the use time, the general verification period is more than 3 years;
Ultrasonic water meter: without any mechanical moving parts, never wear, accuracy has little relationship with the use time, the general verification period is more than 3 years;
Mechanical water meter: Use impeller gears and other mechanical rotating parts to measure, and there is abrasion. The longer the use time, the lower the measurement accuracy.

6. Installation method

Electromagnetic water meter: horizontal or vertical, the electrodes must be on the same horizontal plane;
Ultrasonic water meter: freely choose the installation method according to the site conditions, horizontal, vertical, or inclined installation;
Mechanical water meter: Single installation, must be installed strictly horizontally or vertically.

7. Installation requirements (sensitivity level of flow field)

Electromagnetic water meter: U10D5 or U5D3: Upstream requires 10/5 times the pipe section aperture length, and downstream requires 5/3 times the pipe section aperture length;
Ultrasonic water meter: the industry-leading product can be better than U3D0: the upstream requires 3 times the length of the pipe section aperture, and the downstream can be directly connected to the elbow;
Mechanical water meter: U10D5: Upstream requires 10 times the length of the pipe section aperture, and downstream requires 5 times the pipe section aperture length.

8. Communication network

Electromagnetic water meter: internal circuit initiated, no external electronic device is needed, zero communication error;
Ultrasonic water meter: the internal circuit is initiated, no external electronic device is required, and the communication is zero error;
Mechanical water meter: additional electronic devices are required.

9. Power supply problem

Electromagnetic water meter: The principle of electromagnetic induction determines that the power consumption is relatively large. Generally, it takes 15s to measure the flow rate once, and the battery life is 3-5 years;
Ultrasonic water meter: Qualified product, can guarantee the battery life of more than 10 years under the current measurement cycle of at least 1S;
Mechanical water meter: The mechanical base meter does not require power supply.

Read more about: How does a residential water meter work?

water meter installation details

Installation and use of ultrasonic water meters and precautions:

1. The applicable model is determined according to the system flow rather than the system pipe diameter. The diameter and model of the heat meter should be determined according to the commonly used flow.
2. According to the design requirements of household measurement, a filter must be installed before the water inlet. The filter must be cleaned and maintained regularly.
3. It must be installed in a horizontal or vertical direction, and the direction of the arrow on the pulse meter (including the filter) must be consistent with the direction of the water flow in the pipeline. Do not allow the water to flow backwards to avoid impurities in the water from damaging the meter. When installed vertically, the water flow direction must be upward .
4. Before installation, the pipes must be cleaned.
5. There should be straight pipes of sufficient length at the inlet and outlet of the water meter. The length of the straight pipe at the front end of the inlet should not be less than 10 times the length of the pipe diameter. The length of the straight pipe at the front end of the outlet should not be less than 5 times the length of the pipe diameter:
6. The water meter calculator (display) shall not be immersed in water.
7. The water quality of the water supply should meet the relevant regulations.
8. The water meter is a measuring instrument, and the heat meter must be checked regularly in accordance with national standards, and the battery must be replaced during the check.
9. To avoid man-made damage to the metering system, a water meter box can be installed.
10. Without the permission of the company, no one is allowed to disassemble the maintenance watch without permission, otherwise the warranty service will be released by itself.

Read more about: Common River Water Level Measurement Methods

water meter life expectancy

Water meter is an instrument for measuring water flow. Most of them are cumulative flow measurement of water, generally divided into two types: volumetric water meter and speed water meter. Originated in the United Kingdom, the development of water meters has a history of nearly two hundred years.

The service life of the water meter shall not exceed 6 years (caliber of 15-25 mm), 4 years (caliber of > 25-50 mm), and shall be rotated upon expiration. In other words, a water meter with a diameter of 15 to 20 mm can be used for up to 6 years.

More high accuracy liquid flow meters

More Water Flow Measurement Solutions

Frequently
Asked
Questions

Help Center

How does an ultrasonic water meter work?

Ultrasonic water meters mainly use:

When the ultrasonic wave is transmitted in the water flow, the speed and temperature of the water flow will affect the ultrasonic receiving time. However, the difference between the upstream and downstream measurement times can eliminate the temperature effect. Therefore, if the ultrasonic receiving time is affected at this time, it is only related to the speed of the water flow.

During measurement, both transceivers transmit and receive ultrasonic waves, and the current water velocity can be calculated according to the time difference between upstream and downstream.

Compared with mechanical water meters, it has the characteristics of high precision, good reliability, wide range ratio, long service life, no moving parts, no need to set parameters and installation at any angle.

If the diameter of the water pipe is known when calculating the water loss, the flow rate for a certain period of time can be calculated. The calculation formula is:

Downstream formula: TDown= L / (VS+ Vf)
Upstream formula: TUp= L / (VS– Vf)

L is the distance between the two ultrasonic sensors. VS is the speed of sound in water. Vf is the velocity of the water flow.

It is precisely because the ultrasonic water meter has the above characteristics. The measurement accuracy of the ultrasonic water meter is very high. It is several times or even dozens of times that of ordinary mechanical water meters. It is precisely because of this that more and more people are beginning to use ultrasonic water meters.

Check more Choosing The Right 1 Inch Flow Meter.

What is ultrasonic meter used for?

The areas with relatively large demand for ultrasonic water meters include agricultural irrigation, township water supply, urban water supply, and smart city construction.

Details as follows:

1. Agricultural irrigation: no mechanical transmission parts. No flow blocking elements. Ultrasonic water meter measurement is almost unaffected by water quality. It can adapt to the poor water quality of agricultural irrigation and is the most suitable product for the measurement of agricultural irrigation water.​​
2. Smart city: no pressure loss, reduce the energy consumption of the pump, and achieve the goal of energy saving. The communication interface is complete. It is convenient for network remote monitoring and reflects intelligence. Battery powered, no mechanical transmission parts, long service life.​​
3. Urban water supply: The initial flow of the ultrasonic water meter is low, which avoids the unmeasured small flow and increases the water fee income. The high measurement accuracy makes the accurate measurement of water bills a reliable guarantee. Wide range ratio, suitable for various users with different water consumption.​​
4. Township water supply: adapt to various domestic water quality conditions. The communication network is convenient, the output signal is many, and it is convenient for automatic settlement and computer management. Realize centralized management of water resources and improve management efficiency. Remote monitoring, reducing management costs.

Read more: Insertion Type Ultrasonic Flow Meter Applications

How accurate are ultrasonic water meters?

What are the advantages of ultrasonic flow meter?

There are many advantages of using the ULTRASONIC flow meters which include:

• The electronics in the ultrasonic flow meter includes ultrasonic flowmeter detector which compensates and adapts to the changes in the profile of the flow, type of the liquid and material of the pipe.
• A portable ultrasonic flow meter converter can be used as a direct method to determine the flow rates effectively when compared to the other flow systems.
• Ultrasonic flow meter converter is inexpensive to use and maintain when compared to the other mechanical flow meters as they are no moving parts in these flow meters.
• Their design is highly sophisticated and they do not obstruct the liquid flow, so they can be used for sanitary, corrosive and abrasive liquids.

Sino-Inst is Manufacturer of ultrasonic water meters. We supply more than 20 kinds of ultrasonic water meters. 90% of ultrasonic water meters are used in industrial agriculture. The rest are for civilian use.

Due to the measurement of different pipes, the price of ultrasonic water meters is also different. Available from USD 50.00 to USD 1500. So, if you need to purchase ultrasonic water meter. Please contact our sales engineer to confirm the price.

Ultrasonic water meters are mainly used for flow measurement of water. They are mainly used for metering and monitoring the flow of water media, such as domestic water, central air conditioning system water, equipment pipe network water, etc.

Ultrasonic water meters enable stable flow measurement . This greatly meets the measurement needs of many applications. Can be used from small to large tubes.

Sino-Inst’s Ultrasonic water meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

The entire team at Sino-Inst’s has received excellent training, so we can ensure that every client’s needs are met. For assistance with your product requirements, whether it’s a Ultrasonic water meters, level sensor, or other device, give us a call.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Ultrasonic Water Flow Meter is a new type of water meter designed for water resource monitoring. Using ultrasonic time difference measurement technology.

Insertion Ultrasonic Water Flow Meter (Model: 2000K) is a card type digital water meter. Using ultrasonic time difference measurement technology. A new type of water meter designed for agricultural irrigation, garden management, and water pipe monitoring of water resources. The thickness of the water meter is only 50mm to save installation space.

Ultrasonic Water Flow Meter Reference price: USD 270.00/pc

Features of Insertion Ultrasonic Water Flow Meter

• Small and compact all plastic, IP68 protection level
• High accuracy 100:1 turndown ratio
• Pipe body probe, not easy to scale
• Adaptive ultrasonic signal can measure water with impurities
• Single chip SOC digital time difference processing
• Multi-line with status display, touch key operation
• Optional built-in Lora or NB-iot function
• Dual interface RS485 and MBUS
• MODBUS, MBUS, CJ188 and other multiple communication protocols
• Can work with external power supply
• 10 years working life of built-in battery
• Reliable and low price suitable for mass application

How much is a 2 inch water flow meter? Let’s find out.

Specifications of Insertion Ultrasonic Water Flow Meter

Extended reading: What is Modbus Protocol?

Flow Rate:

Extended Reading: Inline Ultrasonic Flow Meter

Extended reading: Industrial VS Residential inline water flow meters

Ultrasonic Water Meter Working Principle

The ultrasonic water meter adopts the time difference method to measure the flow. That is to say, an ultrasonic transducer is installed in the upstream and downstream of the measurement channel (pipe section) for mutual transmission and reception of ultrasonic signals.

Because the ultrasonic signal is superimposed with the water flow signal. Make the sound waves travel at different speeds in the forward and reverse flow. Therefore, the ultrasonic signals emitted by different transducers have different running times in water. By measuring the difference in time, the flow rate of the fluid can be calculated. And then converted into flow, so as to achieve flow measurement.

There are two transducers on top of the flow tube. Transducer A transmits an ultrasonic signal (downstream) to transducer B. At the same time, the B transducer transmits an ultrasonic signal (countercurrent) to the A transducer. A certain time difference is formed in the transmission process of the ultrasonic signals in the upstream and downstream.

In the case of calibrated pipe diameter cross-sectional area and standard measuring pipe length. The flow rate of the meter is calculated by the calculation chip on the integrator.

Featured ultrasonic clamp-on water flow meter

Clamp on flow meter (Model: 2000) is composed of an integrated host and ultrasonic clamp on sensor. Clamp on flow meter is widely used in online flow measurement of various liquids. Just stick the external clamp sensor on the pipe surface. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow. The installation is convenient and quick, and the non-destructive installation is truly realized.

Clamp on Ultrasonic Flow Meter ( Model: 3000S) is composed of a host and an external clamp sensor. The flow measurement of various liquids can be completed by simply sticking the external clamp sensor on the surface of the pipeline. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation. Compared with the common TDC algorithm of other manufacturers, TGA measurement technology is an algorithm for measuring process time with higher speed and higher accuracy.

Read more about: Digital Water Flow Meters

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Guess you like: Insertion Magnetic Flow Meter-Large diameter online install

Sino-Inst, Manufacuturer for Insertion Ultrasonic Water Flow Meters. It can measure a single sound-conducting liquid medium of DN 25—150mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Insertion Ultrasonic Water Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Inline Ultrasonic Flow Meter is a standard pipe section flow meter. The flow rate is measured by the principle of ultrasonic time difference.

The InLine Ultrasonic Flow Meter ( Model:2000F) uses pipe-segment sensors to measure liquid pipes. It solves the problem of measurement accuracy drop caused by non-standard pipes and human installation errors in the process of clamp-on and Insertion type. The measurement accuracy of one percent is truly achieved.

Inline Ultrasonic Flow Meter Reference price: USD 470.00/pc

• Features
• Specifications
• Optional Hosts

Features of InLine Ultrasonic Flow Meter

• High accuracy
  • Better than ±1%
• Wide measuring range
  • Several types transducer for selection, pipe size from Dn15mm to Dn6000mm
• High Reliability
  • Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability.
• Strong Anti-interference
  • Dual-balance signal differential receiver/driver circuit to avoid interference of converter, TV tower, high voltage line etc.
• Powerful Recording Function
  • Automatically record the following data:
  • The totalizer data of the last 512 days/128 months/10 years
  • The time and corresponding flow rate of the last 64 times of power on and off events
  • The working status of the last 32 days
• Far Transmission Distance, Easy for Networking
  • RS485 support wireless network, connect GPRS module to accomplish wireless transmission .
• Support Heat Measurement
  • Connect the temperature transducer ,can finish the heat/energy measurement.

Specifications of Inline Ultrasonic Flow Meter

Working Conditions:

	Transmitter	Transducer
Protection grade	IP68	IP68
Temperature	-20~60℃	-30~160℃

Optional Transducer:

π type Pipe Transducer：

Threaded Connection

Norminal Diameter（DN）	Pressure Level（P）	Length(L)	Connecting Thread	Thread Effective length	Standard
DN15	2.5	320	G3/4B	18	GB/T7307-2001
DN20	2.5	360	G1B	15
DN25	2.5	390	G11/4B	16
DN32	2.5	450	G11/2B	22.5

Flanged Connection

Norminal Diameter （DN）	Pressure Level （P）	Length (L)	Flange Dimension							Standard
			Outer Diameter D	Diameter of center hole in bolts D1	Diameter of bolt hole ×Quantity Φ×n	Diameter of Sealing surface  D2	Flange thickness		Bolting Specification
							c	f
DN 15	2.5	320	95	65	14×4	46	14	2	M12×50	GB/ T9119-2000
DN 20	2.5	360	105	75	14×4	56	16	2	M12×50
DN 25	2.5	390	115	85	14×4	65	16	2	M12×60
DN 32	2.5	450	140	100	18×4	76	18	2	M16×60

Standard Pipe Transducer：

Norminal Diameter （DN）	Pressure Level （P）	Length (L)	Flange Dimension							Standard
			Outer Diameter D	Diameter of center hole in bolts D1	Diameter of bolt hole ×Quantity Φ×n	Diameter of Sealing surface  D2	Flange thickness		Bolting Specification
							c	f
40	1.6	300	150	110	18×4	84	18	2	M16×60	GB/T9119-2010
50	1.6	300	165	125	18×4	99	20	2	M16×70
65	1.6	300	185	145	18×4	118	22	2	M16×70
80	1.6	225	200	160	18×8	132	20	2	M16×70
100	1.6	250	220	180	18×8	156	22	2	M16×80
125	1.6	275	250	210	18×8	184	22	2	M16×80
150	1.6	300	285	240	22×8	211	24	2	M20×80
200	1.6	350	340	295	22×12	266	26	2	M20×90
250	1.6	450	405	355	26×12	319	28	2	M22×90
300	1.6	500	460	410	26×12	370	32	2	M22×90
350	1.0	550	500	460	23×16	428	28	4	M20×80
400	1.0	600	565	515	25×16	482	30	4	M22×90
450	1.0	700	615	565	25×20	532	30	4	M22×90
500	1.0	800	670	620	25×20	585	32	4	M22×90
600	1.0	1000	780	725	30×20	685	36	5	M27×110
700	0.6	1100	860	810	25×24	775	32	5	M22×90
800	0.6	1200	975	920	30×24	880	32	5	M27×100
900	0.6	1300	1075	1020	30×24	980	34	5	M27×100
1000	0.6	1400	1175	1120	30×28	1080	36	5	M27×110

Specifications

Accuracy	±1%
Flow range	0~±10m/s
Pipe Size	DN15~DN6000mm
Fluid temperature	-30~160℃
Fluid types	Water, seawater, sewage, acid, alkali, alcohol, beer, various oils, etc. can conduct ultrasonic waves as a single uniform liquid
Piping material	Steel, stainless steel, cast iron, copper, PVC, aluminum, fiberglass and all other high quality pipes with lining are allowed
Outputs	1 channel 4-20ma current output impedance 0-1k, accuracy 0.1% 1 channel OCT pulse output pulse width 6-1000ms 1 channel relay output
Signal input	3-channel 4-20ma current input, the data collector can be connected to three-wire PT100 platinum resistance to realize heat measurement
Communication	RS485, Modbus Protocol
Power supply	DC8~36V or AC10~30V AC85~264V，Equipped with waterproof power adapter

Extended reading: Magnetic Large Dia. Pipe Flow Meter

InLine Ultrasonic Flow Meter optional hosts:

Of course, in addition to integrated installation. In-Line Ultrasonic Flow Meter can do split installation. According to the measurement conditions, different hosts can be selected.

Wall mounted 2000S1
Power supply:DC8~36V or AC85-264V

Wall mounted 2000S2
Power supply:DC8~36V or AC85-264V

Panel mounted 2000U
Power supply:DC 8~36V or AC85-264V

Module mounted 2000M
Power supply:DC 8~36V 

Wall mounted 2000S4
Power supply:DC8~36V or AC85-264V

Inline Ultrasonic Flow Meter Working Principle

Inline Ultrasonic Flow Meter is a meter that measures the flow of liquid in a round tube based on the principle of ” transit Time”. It adopts advanced multi-pulse technology, signal digital processing technology, and error correction technology. The flow meter can be more adapted to the environment of the industrial site, and the measurement is more convenient, economical, and accurate. The products have reached the advanced level at home and abroad and can be widely used in petroleum, chemical, metallurgy, electric power, water supply, and drainage fields.

Ultrasonic flowmeters are the same as electromagnetic flowmeters. Because the flow channel of the instrument is not equipped with any obstructions, it is an unobstructed flowmeter. It is a type of flowmeter suitable for solving difficult problems in flow measurement. Especially in large-diameter flow measurement. The advantages. It is one of the rapidly developing types of flow meters.

Transit Time Ultrasonic Flow Meter adopts the measurement principle of the time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Pipe section In-line sensors

Pipe section sensor: The pipe section sensor is a measurement method in which the pipe section sensor is directly connected to the pipeline under test by using a flange or thread. This sensor solves the problem of man-made or measured pipelines during the installation of the external clamps and plug-in sensors. Errors caused by inaccurate parameters. It has the characteristics of high measurement accuracy, good stability, and maintenance-free.

Clamp-on ultrasonic flow meter

Clamp on Ultrasonic Flow Meter ( Model: 3000S) is composed of a host and an external clamp sensor. The flow measurement of various liquids can be completed by simply sticking the external clamp sensor on the surface of the pipeline. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation. Compared with the common TDC algorithm of other manufacturers, TGA measurement technology is an algorithm for measuring process time with higher speed and higher accuracy.

Extended reading: Ultrasonic flow detectors types

Insertion Ultrasonic Flow Meter

Insertion Flow Meter ( Model:2000S) solves the problem of signal attenuation when ultrasonic Clamp on flow meter works for a long time and the problem of fouling on the inner surface of the pipe without receiving the signal. It can be installed without stopping production. It can be applied to various pipes such as steel pipe, cast iron, FRP, PVC and cement pipe.

Read more about: Ultrasonic flow meters types & technical guide

Sino-Inst, Manufacturer for InLine Ultrasonic Flow Meters. It can measure a single sound-conducting liquid medium of DN32—6000mm. It can measure even liquids such as water, seawater, oil, and slurry.

Sino-Inst’s InLine Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

You may like:

• Wafer Flange Vortex Flowmeter
• Vortex Hygienic Flow Meter
• Vortex Split High Temperature Flow Meter
• Threaded Vortex Nitrogen Gas Flow Meter
• Vortex Compressed Air Flow Meter

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

What is Insertion Type Ultrasonic Flow Meter? Insertion Type Ultrasonic Flow Meter works on the principle of time difference. The transducers are inserted into the surface of the closed pipe.

The insertion type ultrasonic flowmeter is composed of a flowmeter host, a pair of insertion transducers and their accessories.

Insertion Type Ultrasonic Flow Mete can be a replacement for electromagnetic flowmeter on large diameter water flow pipes.

Get a Quote More Ultrasonic Flow Meters for Liquids

• Features
• Specifications
• Host
• Transducer

Features Of Insertion Type Ultrasonic Flow Meter

Insertion Type Ultrasonic Flow Meter is a type of ultrasonic flow. The same is the principle of using the time difference method. The form of the transducer has been changed, and the installation method has been changed to the insertion type. The debugging process and use effect are not much different from the clamp-on ultrasonic flowmeter.

Today we mainly introduce the advantages of Insertion Type Ultrasonic Flow Meter! It is divided into the following points:

1. It can be installed online under pressure. During construction, the production pipeline does not need to be shut down, and there is no need to disconnect the pipe welding flange. Save the time and expense of using the unit;
2. The product has low power consumption. The power supply is DC24V, and the power is 5W. It is safer to measure tap water, river water, sea water, etc.;
3. The protection level of the converter is IP65. No screw design on the surface. The appearance is high-end and atmospheric. The service life of the button panel is more than 200,000 times;
4. Sensor protection grade IP68. Can be immersed in water to work;
5. 4~20mA current output. RS485 communication, standard MODBUS protocol. It can form a network by itself or connect to a GPRS module to realize remote data transmission;
6. Independent menu operation, LCD backlight display. Data reading is clear at a glance;
7. Daily, monthly and annual traffic accumulation functions;

Specifications of Insertion Type Ultrasonic Flow Meter

Item	Performance and Parameter
Convertor	Principle	transit-time ultrasonic flowmeter
	Accuracy	Flow: over 1%-2%(battery-powered supply over ±2% )，Heat: over ±2%，Repeatability: over 0.2%
	Display	2×20 character LCD with backlight, support the language of Chinese, English and Italy Convertor dimension:170*180*56cm
	Operation	Support 16 key light touch keyboard and the Simulation keyboard software
	Signal Output	1 way 4~ 20mA output, electric resistance 0~ 1K，accuracy0. 1%
		1 way OCT pulse output( Pulse width 6 ~ 1 0 0 0 ms，default is 2 0 0 ms)
		1 way Relay output
	Signal Input	3 way 4~ 20mA input, accuracy 0. 1%，acquisition signal such as temperature, press and liquid level
		Connect the temperature transducer Pt100, can finish the heat/energy measurement
	Data interface	Insulate RS485 serial interface, upgrade the flow meter software by computer, support the MODBUS, METER-BUS etc.
	Other Function	Automatically remember the previous flow/energy data of 512 days,  128 months and 10 years
		Automatically remember the previous flow/energy data of 512 days working condition and check it
		Automatically remember the previous 32 times power on/off time and flow rate
Special Cable	Twisted-pair cable, generally, the length under 50 meters; Select the RS485 communication. The transmission distance can over 1000m.
Pipe Condition	Pipe Material	Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed.
	Pipe Diameter	32mm—6000mm
	Straight length pipe	Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump.
Measuring Medium	Type of Liquid	Water (hot water, chilled water, city water, sea water, waste water, etc.);  Sewage with small particle content; Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.);  Chemicals (alcohol, acids, etc.); Plant effluent; Beverage, liquid food; Ultra-pure liquids; Solvents and other liquids
	Temperature	Standard Transducer: -30–90℃; High-temperature transducer: -30–160℃
	Turbidity	No more than 10000ppm and less bubble
	Flow rate	0–±12 m/s
Working Environment	Temperature	Main Unit: -20–60℃
		Flow transducer: -40–160℃;  Temperature transducer: according to the customer’s demands.
	Humidity	Main Unit: 85% RH; Flow Transducer: Ip67
Power Supply	DC  24V or AC  85-264V
Power Consumption	1.5W

Read more about: What Is GPM In Flow Meter?

Optional Host

According to different installation condition, there are many models separated ultrasonic flowmeter for selection:

Optional transducer

Types	Spec.	Model	Measurement Range	Temperature	Dimension
Insertion	Standard	TC-1	DN50~DN6000	-30~160℃	190×80×55mm
	Lengthen	TC-2	DN80~DN6000	-30~160℃	335×80×55mm

More about: Sewage Flow Meter Selection

Insertion Type Ultrasonic Flow Meter Applications

In terms of the measurement medium, the ultrasonic flowmeter can measure both conductive liquids, such as water, and non-conductive liquids, such as desalted water and pure water. There are also sewage, mud, ore pulp, paper pulp, chemical fiber pulp, corn syrup, fruit juice, alcohol, drugs, blood plasma and many other special media. As long as it is a single uniform and stable ultrasonic transmission liquid, it can be measured.

There are 5 conditions to use Insertion Type Ultrasonic Flow Meter:

In the above cases, the use of Insertion Flow Meter can be considered.

insertion type ultrasonic flow meter installation

Large Pipe Flow Meters

The cost of monitoring the flow in a large diameter pipe is very high. Today, modified intrusive and clip-on flowmeter technology can be used to measure flow in large pipelines. Using Insertion flow meters, it is possible to monitor the flow in pipes up to 6000 mm in diameter.

Of course, except for ultrasonic flow meters. There are other flow meters suitable for liquid flow in large-diameter pipes.

When measuring the liquid flow of large-diameter pipes, the following factors should be considered when selecting a flow meter:

• The pressure loss should be as small as possible;
• Due to the low flow rate (to reduce operating costs), the inner wall of the pipeline is easy to deposit dirt and sludge;
• The measuring range of the flowmeter used should be particularly large to adapt to the disparity of browsing in different time periods;
• The protection level of the flowmeter should also meet the requirements of the environment.

Extended reading: Magnetic Large Dia. Pipe Flow Meter

What is insertion type flow meter?

The insertion flow meter can provide a low-cost alternative to full-caliber flow equipment. Full-caliber flow equipment will take up a lot of space and require a lot of installation work. And there are special difficulties in service or calibration.

Drill a hole of appropriate size in the pipe wall. And a method of fixing the insertion gauge is adopted. This can be a saddle clamp, a welded threaded short tube, or a mating flange.

Then insert the Insertion sensor into the pipe to the depth recommended by the manufacturer. If on-site calibration is possible, the depth can be adjusted to improve accuracy.

Once the meter is fixed, it will only measure the speed at this time. And the volume flow cannot be calculated before considering the pipe diameter and the nature of the medium. Usually in the electronic flow computer/display unit.

More Ultrasonic Flow Measurement Applications and Markets

If the insertion type of flowmeter is too troublesome to install. Then you can consider using a clamp-on ultrasonic flow meter. Simple and easy to use.

Sino-Inst, Manufacturer for Insertion Type Ultrasonic Flow Meter TUF2000. It can measure a single sound-conducting liquid medium of DN50 – 6000mm. It can measure even liquids such as water, seawater, oil, and slurry.

Sino-Inst’s Insertion Type Ultrasonic Flow Meter TUF2000, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

Clamp on Ultrasonic Flow Meter is a wall-mounted ultrasonic flow meter using TGA time difference technology. TGA is an algorithm for measuring process time with higher speed and accuracy.

Clamp on Ultrasonic Flow Meter ( Model: 3000S) is composed of a host and an external clamp sensor. The flow measurement of various liquids can be completed by simply sticking the external clamp sensor on the surface of the pipeline. Compared with the traditional flowmeter, it does not need to cut off the pipe and flow, the installation is convenient and quick, and it truly realizes the lossless installation. Compared with the common TDC algorithm of other manufacturers, TGA measurement technology is an algorithm for measuring process time with higher speed and higher accuracy.

Clamp on Ultrasonic Flow Meter Reference price: USD 870.00/pc

Features of Clamp on Ultrasonic Flow Meter

Compared with other conventional flowmeters, the LRF-3000S ultrasonic flowmeter has the following characteristics in addition to the flexibility of on-site installation, high response speed and better measurement capability under low flow rates:

1. Use an independent high-performance FPGA chip with 400,000 gate arrays. The measurement rate can be greater than 300 times per second. Compared with other brands, it has a great improvement in the resistance to air bubbles in the measurement pipe diameter. It can withstand continuous bubbles for up to 5 seconds.
2. Increased signal strength. It has greater penetrating power to various scales, rust in the pipe and the inner lining of the pipe.
3. 4-line LED display. Easy to operate.
4. The sensor adopts our unique manufacturing process and matching technology. The zero point range can be controlled within 0.03m/s. The static time difference between each pair of sensors is less than 2 nanoseconds. This effectively guarantees the authenticity of the measured time difference.

Specifications of Clamp on Ultrasonic Flow Meter

External clamp sensor:

1. The signal cable and sensor are manufactured in one piece without wiring;
2. Hidden tube tie design, more stable and beautiful after installation;
3. A pair of sensors can achieve DN25-DN1200mm measurement to meet the use of a larger range of pipe diameters;
4. Protection grade IP68, can work underwater without water ingress.

Clamp on Ultrasonic Flow Meter Working Principle

Clamp on Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Clamp on water flow meter

Clamp on water flow meter means to measure the water flow rate by clamping the ultrasonic flowmeter sensor outside the pipe. The sensor is non-invasive. Of course, according to the actual requirements of the measurement, it can be fixed or portable.

So, why are we willing to use Clamp on ultrasonic flowmeter to measure the flow rate of water?

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

There are many types of flow meters for measuring water. Common ones are: V cone flowmeter, electromagnetic flowmeter, metal rotor flowmeter, vortex flowmeter, liquid turbine flowmeter, ultrasonic open channel flowmeter, ultrasonic flowmeter, etc.

Advantages of Clamp on water flow meter for water measurement:

1. External clamp installation, without damaging the pipeline. easy and convenient.
2. It is convenient to measure ultra-small and ultra-large pipes. As small as Φ9.5. As large as DN6000.
3. Electromagnetic flowmeter is used to measure the volume flow of conductive liquid with conductivity greater than 5μS/cm. Then other water flow with conductivity less than 5μS/cm can be measured with ultrasonic clamp on water flow meter. For example, ultrapure water.
4. For pure water, drinking water, etc., it is necessary to keep clean and hygienic. If contact flow meters such as turbine flow meters and orifice flow meters are used, the material must be strictly required. At least 316SS material is required. Then the cost of the contact flowmeter will be very high.

Read more about: Non-invasive Ultrasonic Tank Level Sensor Working Principle

Portable clamp-on ultrasonic flow meter

The portable ultrasonic flowmeter uses a non-invasive sensor to measure liquid flow. The installation process is extremely simple. There is no need to destroy the pipeline during the measurement process and no need to stop production. The sensor is not in contact with the measured medium. Battery powered, small size, light weight and easy to carry. Realize the real sense of mobile flow measurement, online detection, is a real sense of portable ultrasonic flowmeter.

Handheld Ultrasonic Flow Meter has been successfully applied to measurement work in various industries. The measuring range is 20-6000mm (0.5-20 inches). A non-contact measurement method is adopted. Flexible operation and easy to carry. Conductive or non-conductive, corrosive or non-corrosive liquids can be measured. Various fluids: water, pure water, sewage, sea water, chemical fluids, river water, fuel Oil etc. can be measured.

Sino-Inst, Manufacuturer for Clamp on Ultrasonic Flow Meter. It can measure a single sound-conducting liquid medium of DN 25—1200mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Clamp on Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

The ultrasonic flow meter measures the liquid flow rate quickly and effectively. There are two types of ultrasonic flowmeter technology: Doppler frequency shift and transit time.

Transit time ultrasonic flow meter is most suitable for measuring the flow of cleaning liquid. Therefore, it is the most popular type of ultrasonic meter.

Doppler ultrasonic flow meter can measure the frequency difference of sound waves reflected from bubbles or particles in the airflow. It is suitable for aerated or dirty liquids.

Featured Ultrasonic Flow Meters for Liquids

Transit time Ultrasonic Flow Meter Working Principle

Transit time Ultrasonic Flow Meter adopts the measurement principle of time difference method. It uses the ultrasonic wave emitted by the sensor to propagate in the flowing fluid. The sound wave propagation speed in the downstream direction will increase, and the backward direction will decrease. In the same propagation distance, there will be different transmission times. According to the difference between the transmission time and the measured The relationship between fluid velocity measures the fluid velocity.

The flow rate of the fluid is different in different positions in the tube. The flow rate in the center of the tube is faster than the flow rate near the wall of the tube. The flow velocity distribution of the fluid in the pipeline can be represented by the flow velocity cross-sectional distribution diagram.

By setting the flowmeter and considering the cross-sectional distribution of the flow velocity, the average flow velocity can be calculated. Then the volume flow of the fluid can be obtained according to the cross-sectional area of the pipe.

Notes:
V measure fluid velocity
M ultrasonic reflection times
D pipe diameter
θ The angle between the ultrasonic signal and the fluid
T up The time when the downstream sensor transmits the signal to the upstream
T down Time from upstream sensor to downstream
ΔT = T up – T down

Guess You’ll Like: Ultrasonic flow meters types & technical guide

Ultrasonic Doppler Flow Meter Working Principle

Ultrasonic Doppler Flow Meter uses the physical principle of Doppler frequency shift to measure the water flow velocity.

Doppler effect (Doppler frequency shift) principle:
The sound waves emitted by one object are received and reflected by another object. If the object emitting the sound wave is moving relative to the receiving object. The frequency of the sound wave received by the receiving object will be different from the frequency of the emitted sound wave.

If the relative distance between two objects is reduced, the received frequency will increase.
If the relative distance between two objects is increased, the received frequency will decrease.

Such Doppler effects often occur in daily life. For example: when you hear the sirens (sounds) of an oncoming police car. The sound will appear higher in frequency. When the police car is far away from you, the sound it hears will become lower.

Through the difference between the frequency of transmitting ultrasonic waves and the frequency of receiving ultrasonic waves, the specific flow rate can be calculated. Then the water level is measured by the pressure sensor, and the water passing area is calculated from the water level and channel size.
Finally, the velocity and area are integrated to calculate the final instantaneous flow.

Calculation formula:
Velocity × water area × 3600 seconds = instantaneous flow rate (cubic meters/hour)

Ultrasonic Open channel flow meter working principle

The open channel flowmeter is based on the specific shape of the Parshall metering groove/weir plate metering groove. It guarantees a certain liquid level and knows a certain flow rate. The Parshall groove/weir plate metering groove is selected as the specific flow channel. The measurement accuracy is high. Easy to install.

The sensor measures the height of the liquid level, which is processed by 89C52 series single-chip microcomputers to obtain the instantaneous flow and cumulative flow values.

The flow can be expressed by the following formula:
　　Q=KHn
　　Q: Instantaneous flow rate (t/h)

K: Flow rate constant
　　H: height of liquid level n: nth power value

The instantaneous flow is processed by the cumulative accumulation to obtain the cumulative flow.

Read more about: Liquid Flow Meters Guide

Sino-Inst, Manufacturer for Ultrasonic Flow Meters. It can measure a single sound-conducting liquid medium of DN 25—150mm. It can measure even liquids such as water, sea water, oil, and slurry.

Sino-Inst’s Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.

KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com