The ultrasonic flowmeter is a single-path flow meter for the transit time as it is widely popular among the people due to its recognized characteristics such as flexibility, accuracy and cost effectiveness.

As per the need and requirement of the user they go for different types of flowmeter basing upon the applications they do. One should keep in keep in mind the following things while making a proper choice of a flow meter.

1. Firstly you have to see whether the pipe is full or not because all the every ultrasonic flowmeters need the pipes being attached to it should be full of liquid. So if you are not aware of the things please take the help of a factory trained technician or the manufacturer who have expert knowledge on this to make sure that everything is well. A few effective approaches are there to workarounds for working with partially-full pipes.

2. The liquid level must have particles above 200ppm and the size of the particle should be larger than 75um depending on different manufacturers. Then you can go for using the Doppler principle.

3. Make sure that whether the liquid temperature in mostly high heat applications is falling into the transducer temperature range.

4. If you are going to choose a wetted transducer press range in the pipe.

5. Keep an eye to know the desired level of measurement accuracy. In common, the multi-path gives a more accurate measurement than in case of single path transducers, Thus the flow cell is better than insertion, while insertion is better than clamp-on. But, if you have an on-site calibration facility, it is good.

6. The flow meter should be portable that can easily move from one place to another. It should possess the capability like clamp-on solution.

7. Be careful about choosing a right type of output signals; make sure whether it is an analogue one or digital or RS232.

8. Make sure about all the security measures, safety requirements as well as considerations. All the flowmeters cannot meet the specific safety requirements for all applications, so be sure while selecting the best one or else consult with the manufacturer or a factory trained technician.

9. Always look the pipe size range, pipe material, lining and Age. These are the important things to be considered.

10. Another important aspect is the flow rate range.

11. A straight pipe length works well. To avail a desired accuracy, it is usually suggested to have straight pipe must equal to 15 times your pipe diameter at the measuring site.

12. However the budget part is also quite important. So you have to make a proper choice depending upon the requirement and budget as well. So that you can get effective benefit of your money utilized.

Almost every flowmeter available in the market must have more or less standard technologies and principles. Moreover, there are a large variety of brands exist in the market, and almost all flowmeter vendors deliver some level of good application expertise and professional services. Therefore a considerate combination of quality, accuracy and cost should be the measuring criteria of your selection.

This post is contributed by SpireMT, a leading supplier of portable ultrasonic flow meter, digital flow meters, electrical energy meters, water flow meter and many more. For more information visit at www.spiremt.com