Flowmeter calibration
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Our company uses many mass flow meters and electromagnetic flow meters. We now suspect that their accuracy is compromised and would like to calibrate them; we were wondering if any of you experts have any good suggestions
For liquids, it can be compared using portable ultrasonic level gauges; for meteorological applications, no good method has yet been found.
A comparison of portable ultrasonic level gauges; however, their accuracy is not necessarily higher than that of mass flow meters and electromagnetic flow meters. The best approach is to calibrate the zero point
:Lol, if you’re not worried about spending money, go to a testing agency for an inspection
For mass flowmeters of this precision, it is recommended to send them to a calibration institute for testing
1. If time permits, send it to the metrology institute for inspection. It seems that indicators don’t cost anything now. 2. Another method is the comparison approach – try using a different mass flow meter. 3. When using the clamp-on method, ultrasonic flowmeters have much lower accuracy compared to mass flowmeters.
First, determine whether there are any installation issues with the flow meter; consider using a new electromagnetic flow meter for calibration, for example by removing the water as the medium used
Is it feasible to weigh the material after feeding it into the material tank through a flow meter and then making a comparison?
If conditions permit: for low flow rates, a mass flow meter can use the weighing method； High flow rates bring a lot of problems ； Electromagnetic flowmeters can use the level-volume method. It is best to go to a metrology institute for calibration; flow calibration devices are not something that every facility can afford, nor is it necessary.
For on-site use, the comparison method is employed; a mass flow meter can be sent to a calibration facility to determine the error of your meter at different flow rates. Then use this watch as a standard and compare it with the watch on site, making sure to take the error into account.