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What is requirement for straight pipe length when installing a transit-time or Doppler flowmeter?
Ultrasonic flow meters require fully developed flow conditions to ensure the meter will perform as specified. There are two basic types of measuring principles, Doppler and Transit Time. Both do require adhering to basic installation guidelines to minimize errors caused ...Read more -
What is Q1, Q2, Q3, Q4 and R for ultrasonic water meter
Q1 Minimum flow rate Q2 Transitional flow rate Q3 Permanent flow rate (working flow) Q4 Overload flow rate Make sure that the maximum flow that will pass through the meter never exceeds Q3. Most water meters have a minimum flow (Q1), below which they cannot provide an accurate reading. If ...Read more -
What issues should be paid attention to during the installation of high-temperature media?
The external clamp sensor measures the upper limit of high temperature 250℃, and the plug-in sensor measures the upper limit of 160℃. During the installation of the sensor, please pay attention to: 1) Wear high-temperature protective gloves and do not touch the pipe with your hands; 2) Use high t...Read more -
How does the time difference ultrasonic flowmeter measure special chemical media?
When measuring special chemical media, since there is no option for special chemical fluid types in the host, it is necessary to manually input the sound velocity of the special chemical medium. However, it is generally difficult to obtain the sound velocity of the special chemical medium. In thi...Read more -
How to choose a suitable location of partially filled pipe?
A typical installation is in a pipe or culvert with diameters between 150mm and 2000 mm. The Ultraflow QSD 6537 should be located near the downstream end of a straight and clean culvert, where non-turbulent flow conditions are maximised. The mounting should ensure the un...Read more -
Insertion Transducer On-Line Quick Install Instruction–For General Insertion Transducers
Insertion Transducer Installation Manual 1. Locate the Installing Point on Pipe 2. Weld Mounting Base 3. Place the Gasket Ring PTFE Gasket ring o...Read more -
Working principle and application of Doppler flow meter
Doppler ultrasonic flowmeter uses the physics of the Doppler effect, in any liquid flow in the presence of discontinuity will be reflected ultrasonic signal frequency shift (that is, signal phase difference), by measuring the phase difference, the flow rate can be measur...Read more -
The principle and application of transit-time ultrasonic flow meter?
A transit-time difference type ultrasonic flowmeter is measured using A pair of transducers (sensors A and B in the figure below), which alternately (or simultaneously) transmit and receive ultrasonic waves. The signal travels faster upstream than upstream in the fluid, ...Read more -
What is difference between reading accuracy and FS accuracy of the flow meter?
The reading accuracy of the flowmeter is the maximum allowable value of the relative error of the instrument, while the full scale accuracy is the maximum allowable value of the reference error of the instrument. For example, the full range of the flowmeter is 100m3/h, when the actual flow is 10...Read more -
What are the main advantages of ultrasonic flowmeters?
1). Online and hot-tapped installation, no pipe cutting or processing interrupt. 2). The clamp-on sensors are easy to install, it can be installed even at high pipe pressure. 3). The clamp on sensor flowmeter is not in direct contact with the measuring medium. It can measure all kinds of conv...Read more
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