The external ultrasonic flowmeter is convenient to apply and favored by a large number of users. However, due to improper installation or debugging, inaccurate readings of the flowmeter occur from time to time. So, in general, how should we conduct self-checks?

With the development of technological progress, more and more new types of instruments have been applied to the measurement of oil fields, such as ultrasonic flowmeters and mass flowmeters. Ultrasonic flowmeters have unique advantages when used for fluid measurement. They are non-contact instruments that do not change the form of the fluid, are easy to install, can measure the flow of strongly corrosive and non-conductive media, and the measurement process is not affected by physical parameters such as temperature, pressure, density and viscosity.

For industrial and mining enterprises with relatively old pipelines, it is advisable not to use the 2-layer acoustic layer (V method) for sensor installation. Instead, the 1-layer acoustic layer (Z method) should be selected. This installation method makes the ultrasonic waves emitted by the flow sensor of the ultrasonic flowmeter easily received by the measured flow sensor, ensuring the signal strength of the ultrasonic flowmeter’s main unit and guaranteeing high-precision measurement values.

The external clamp-on ultrasonic flowmeter is a flow meter that is highly suitable for full pipe measurement in pipelines. It features easy installation, non-contact operation, and can measure the flow of large-diameter media as well as media that are difficult to contact and observe. Its measurement accuracy is very high and is almost unaffected by various parameters of the measured medium. It can especially solve the flow measurement problems of highly corrosive, non-conductive, radioactive and flammable and explosive media that other instruments cannot handle.

When it comes to ultrasonic flowmeters, it is essential to pay attention to the adaptability and requirements of installation. The main considerations include the installation direction of the flowmeter, the flow direction of the fluid, the configuration of upstream and downstream pipelines, the position of gate valves, protective accessories, pulse flow influence, vibration, electrical influence, and the maintenance of the flowmeter, etc.

Handheld ultrasonic flowmeters are widely used in industries such as water supply, heating, water conservancy, metallurgy, chemical engineering, and machinery. They can be used for production monitoring, flow comparison, temporary detection, and flow inspection, and are commonly used instruments for flow detection.

When the ultrasonic flowmeter shows unstable signals and inaccurate readings, many users tend to think that there is a problem with the ultrasonic flowmeter sensor. However, this is not always the case. Today, we will introduce to you the reasons why the ultrasonic flowmeter sensor is good but the flow rate is low or there is no flow rate at all.

1. Reflection issue

If the object being detected is always at the appropriate Angle, the ultrasonic sensor will obtain the correct Angle. But unfortunately, in practical use, few detected objects can be detected correctly.

Several types of errors may occur among them:

When measuring commonly used pipe diameters, ultrasonic flowmeters are not only cheaper than magnetic induction flowmeters, but also do not require additional engineering and piping work, and can be refurbished during continuous operation.

Ultrasonic flowmeters can generally operate normally for a long time without maintenance in the future. After that, maintenance and daily inspections are required. Not receiving the signal or having a too weak signal are both minor issues. So there’s no need to be surprised if it occurs. Just do the following steps carefully and it will be easy to solve.

Handheld ultrasonic flowmeters are commonly used tool instruments for flow detection. It is designed to enhance the convenience of flow measurement. It features high measurement accuracy, a large range ratio, no pressure loss, no moving parts, and is compact and lightweight.

The fixed ultrasonic flowmeter is a time-difference multi-functional ultrasonic liquid flowmeter that adopts new digital technology and is suitable for continuous measurement of full pipe liquid media.

Electromagnetic flowmeters feature high precision and a long service life, and are widely used in fields and industries such as chemical engineering, environmental protection, and metallurgy. However, during the usage process, due to the influence of various factors, it is very easy for the measurement results of the electromagnetic flowmeter to be inaccurate. So, what are the causes of errors in electromagnetic flowmeters?

The measurement principle of the electromagnetic flowmeter is Faraday’s law of electromagnetic induction. It is an instrument that measures the flow of conductive fluids based on the induced electromotive force when the conductive fluid passes through an external magnetic field. The main components of the sensor are: measuring tube, electrodes, excitation coil, iron core and magnetic yoke housing.

The reasons for this situation may be that the mechanical zero point of the electromagnetic flowmeter is set, the error is corrected, various technical and on-site requirements are not paid attention to

Fault phenomenon of electromagnetic flowmeter: The data is zero when the pipe is full of flow

The insertable electromagnetic flowmeter is an instrument for measuring conductive liquids made based on Faraday’s law of electromagnetic induction. This type of instrument, due to its simple structure, light weight, easy installation and low maintenance requirements, is used to measure the volume flow of non-corrosive (for water supply and drainage) conductive liquids in closed pipelines.

During the production and operation of the intelligent split-type sewage electromagnetic flowmeter, various faults may occur. 1. Instrument indication errors caused by faults of the instrument itself, including damage to the structural components or parts of the instrument, etc. 2. The faults are caused by the installation environment of the instrument or improper installation, such as the straight pipe sections installed upstream and downstream of the sensor not meeting the requirements, the measured medium not filling the pipeline, and electromagnetic interference in the measurement environment, etc.

Ultrasonic flowmeters are instruments that measure fluid flow through ultrasonic technology. They have the advantages of high precision, easy installation, and non-contact measurement, and thus have a wide range of application scenarios in multiple fields. The following are some of the main application scenarios of ultrasonic flowmeters

When installing ultrasonic flowmeters, the requirements for the straight pipe section are very crucial. This is mainly because the straight pipe section can ensure that the fluid flow state through the flowmeter is stable and uniform, thereby improving the measurement accuracy. The following is a detailed analysis of the requirements for the straight pipe section of ultrasonic flowmeters:

There are significant differences between pipe-type ultrasonic flowmeters and insertable ultrasonic flowmeters in many aspects. The following is a specific analysis of these differences

Ultrasonic flowmeters usually have high accuracy in flow measurement. Ultrasonic flowmeters are easy to install and maintain, which makes them widely used in various fields such as petrochemicals, water conservancy projects, and energy.

The maintenance of the probe of ultrasonic flowmeters is a key link to ensure the accurate measurement and long-term stable operation of the flowmeters. The following are some specific maintenance methods and precautions:

Thermal gas mass flowmeters have become well-known to many people in recent years. Those who have not come into contact with this type of gas flowmeter must be very curious about how it is applied. In what occasions is it applied? Today, the editor of Aister Instrument, a flowmeter manufacturer, will take you to learn about it!

Thermal gas mass flowmeters measure gas flow based on the principle of thermal diffusion and transmit electrical signals to computers and other conversion devices through sensors. To ensure the accuracy of thermal gas mass flowmeter measurement, in addition to the quality of the product being up to standard, the installation direction must also be correct; otherwise, it will also affect the measurement accuracy of the thermal gas mass flowmeter. Today, the editor of Aister Instrument, a flowmeter manufacturer, will talk to you about how to choose the installation direction.

The thermal gas mass flowmeter is equipped with a direct display function. Only through signal transmission can information be directly displayed on the device. If the signal is not displayed, undoubtedly, no matter how good the thermal gas mass flowmeter is, it cannot be used. Therefore, when there is no signal output, it must be solved in time. So how to solve it? Let’s take a look at the suggestions of our engineers together.

A detailed description of the thermal gas mass flowmeter

The thermal gas mass flowmeter is an instrument that measures fluid flow based on the principle of heat conduction. This instrument accurately measures the mass flow of gas by using the constant temperature difference method. More importantly, the range ratio of this flowmeter is very wide, which greatly meets the measurement requirements of the owner.

The thermal gas mass flowmeter is an instrument that measures fluid flow based on the principle of heat conduction. This instrument accurately measures the mass flow of gas by using the constant temperature difference method.

A thermal gas mass flowmeter is an instrument that measures the flow of fluids based on the principle of heat conduction. This instrument accurately measures gas flow by using the constant temperature difference method. It has the advantages of small size, high degree of digitalization, easy installation and accurate measurement. Today, let’s mainly talk about what matters need to be noted during the installation process of thermal gas mass flowmeters?