The application of ultrasonic flowmeters in various industries

Matters needing attention during the use of ultrasonic flowmeters

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.

Common faults and solutions encountered in the use of ultrasonic flowmeters for sewage

Ultrasonic flowmeter is cost-effective, easy to install and maintain. Today, flowmeter manufacturer Aister meter makes the following guidance for you on the installation of ultrasonic flowmeter.

Measuring range ±0.03 ft/s ~ ±40 ft/s (±0.01 m/s~ ±12 m/s)
Accuracy ±1%
Diameter range 1″~48″(25mm~1200mm)
Measuring medium Single conducting liquid medium
Measurable pipe Carbon steel, stainless steel, PVC pipe or other dense sound conductive pipe
Output Analog output: 4~20mA, maximum load 750Ω, Modbus: RS485
SD card storage 16G
Set the storage interval 1 ~ 99999 s
Keyboard Digital film keying
Display screen  240*128 LCD display (with backlight)
Power source Rechargeable lithium battery with 3000mAh battery capacity. Under normal use, a full charge can be used for 16 hours.
Operating temperature Transmitter: -40℃~ 60 ℃, sensor: -40℃~80℃, standard type; The range from -40 ° C to 130 ° C is optional
Measure the ambient relative humidity 0-99%
Protection class Transmitter IP65, sensor IP68
Cable Twisted pair shielded cable, standard length of 5 meters

The correct selection of ultrasonic flowmeter can ensure the better use of ultrasonic flowmeter. What kind of ultrasonic flowmeter should be selected should be determined according to the physical and chemical properties of the measured flow medium. Today, flowmeter manufacturers tell you what to pay attention to before choosing ultrasonic flowmeter

The selection of ultrasonic flowmeter should pay attention to several problems

When installing the probe of the external clamp-on ultrasonic flowmeter, it is advisable to select the part with the finest pipe material as much as possible. The equipment area outside the pipe must be clean, and the rust and paint on the pipe surface need to be removed. If conditions permit, use a grinding machine to smooth and polish it, and then use a clean cloth dipped in acetone or alcohol to wipe off the oil stains and dust Next, apply a satisfactory coupling agent to the central part of the probe and the tube wall.

In the energy sector, particularly in the oil and gas industry, ultrasonic flow meters are widely used to measure the flow rates of hydrocarbons in pipelines. These meters offer a non-intrusive solution for accurately monitoring oil and gas flows, ensuring precise measurement without the need for cutting into pipelines. The ability to operate in challenging environments, such as high-pressure pipelines, makes ultrasonic flow meters suitable for upstream and downstream applications, providing essential data for process control and optimization.

Advantages of ultrasonic flow meter

The accuracy of ultrasonic flowmeters in measuring fluid flow is closely related to the on-site working conditions. When selecting the position of the probe equipment, the following conditions should be met:

When the ultrasonic flowmeter experiences unstable signals and inaccurate readings during operation, many users tend to think that there is a problem with the ultrasonic flowmeter sensor. However, this is not always the case. Today, Aister Instruments, a flowmeter manufacturer, will explain to you the reasons why the ultrasonic flowmeter sensor is good but the flow rate is low or there is no flow rate fault.

Ultrasonic flowmeter in view of different installation methods, then the requirements for installation are also different, today the flowmeter manufacturer Aister meter mainly for the installation requirements of different installation methods of ultrasonic flowmeter, for you to make the following explanation.

Nowadays, the application of ultrasonic flowmeters is becoming increasingly widespread, and their application functions have been recognized by all aspects.

Urban drainage networks are responsible for flood control and drainage, sewage collection and transportation in cities. They carry the life safety of a city. And it cannot do without a stable, accurate and easy-to-use traffic detection device. However, traditional monitoring equipment is often affected by installation environment and medium factors, resulting in inaccurate measurements or high maintenance costs, which causes great headaches for many enterprises and maintenance personnel. To address these issues, Aister Doppler ultrasonic flowmeters have developed a “monitoring assistant” that is easy to install, highly accurate, low-power, and maintenance-free – the Doppler ultrasonic flowmeter.

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:

Sewage ultrasonic flowmeters are favored by many users because of their ability to measure without indirect contact with the medium. However, in the daily use of the process, some users encounter the ultrasonic flow meter display is negative, this is what is going on after all?

After having a corresponding understanding of the working principle and application of the ultrasonic flowmeter, what we now need to understand is that in its application of a variety of occasions and various fields to measure user flow, and after the application, we will have to do maintenance for it?

Ultrasonic flowmeters, as very important flow measurement devices in various industrial fields, have a particularly significant adverse impact on measurement accuracy due to their sensors. Different types of sensors should be selected based on the differences in application environments. Today, Aister Instruments, a flowmeter manufacturer, will provide the following explanations regarding several different sensors.

Ultrasonic flowmeters are instruments that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or ultrasonic pulse). The ultrasonic flowmeter is mainly composed of an ultrasonic transducer (or an ultrasonic flow sensor composed of a transducer and a measuring tube) and a transducer mounted on the measuring pipe.

Measuring range ±0.03 ft/s ~ ±40 ft/s (±0.01 m/s~ ±12 m/s)
Accuracy ±1%
Diameter range 1″~48″(25mm~1200mm)
Measuring medium Single conducting liquid medium
Measurable pipe Carbon steel, stainless steel, PVC pipe or other dense sound conductive pipe
Output Analog output: 4~20mA, maximum load 750Ω, Modbus: RS485
SD card storage 16G
Set the storage interval 1 ~ 99999 s
Keyboard Digital film keying
Display screen  240*128 LCD display (with backlight)
Power source Rechargeable lithium battery with 3000mAh battery capacity. Under normal use, a full charge can be used for 16 hours.
Operating temperature Transmitter: -40℃~ 60 ℃, sensor: -40℃~80℃, standard type; The range from -40 ° C to 130 ° C is optional
Measure the ambient relative humidity 0-99%
Protection class Transmitter IP65, sensor IP68
Cable Twisted pair shielded cable, standard length of 5 meters

Many times when we measure the flow, we often use a more convenient handheld ultrasonic flowmeter, because the handheld flowmeter has a high accuracy and belongs to the contact measuring instrument, so we should also pay attention to the operating specifications when operating, and a lot of precautions, so today, what are the precautions for using the handheld flowmeter?

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:

The reasonable selection of ultrasonic flowmeter model can ensure the more effective application of ultrasonic flowmeter. The choice of which type of ultrasonic flowmeter should be based on the physical and chemical properties of the measured medium to choose, so that the nominal diameter of the ultrasonic flowmeter, flow range, lining material, electrode material and output current can adapt to the nature of the measured medium and flow measurement requirements.

Under the premise of fixed installation conditions, ultrasonic flowmeter improves the signal processing capacity and diagnostic capacity of the flowmeter itself, and can effectively reduce noise. Under normal circumstances, the measuring accuracy of the flowmeter is very important.

Ultrasonic flowmeter installation, easy maintenance, cost-effective. However, no matter how good the flowmeter is, it also needs special attention in daily use. Otherwise, it will affect the measuring accuracy and service life of the flowmeter. Today, flowmeter manufacturer Aister meter mainly explains the maintenance and maintenance of ultrasonic flowmeters as follows.

The wiring methods of ultrasonic flowmeters mainly involve power lines, signal lines and possible communication lines, etc. The following are the detailed steps for wiring ultrasonic flowmeters based on multiple authoritative sources:

Measuring medium: single sound conducting liquid medium
Measuring range: ± 0.03ft /s~ ± 40ft /s (± 0.01m /s~ ± 12m /s)
Accuracy class: ±1%
Pipe diameter range: 1″~48″(25mm~1200mm)
Handheld (portable) ultrasonic flowmeter with external clip-on sensing to measure liquid flow. The installation process is extremely simple, and the all-Chinese man-machine interface makes it easier to operate.

Ultrasonic flowmeters are flowmeters that measure flow by detecting the effect of fluid movement on ultrasonic beams (or ultrasonic pulses). Ultrasonic flowmeters can all be installed outside the pipe and measure flow in a non-contact manner. Their surface cost is basically independent of the size of the pipe diameter being measured, making them excellent instruments for measuring the flow of large pipes.

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.