What is the accuracy if you want to get the difference between the two flowmeters?
FS stands for full scale accuracy. Then, for the 500L/min meter mean error of each measurement point range than the manufacturers in the statement of the positive and negative 4L/min. is positive and negative for 2L/min 250L/min flowmeter.This shows that in selecting flow timing, you need to consider the range ratio.
In practical applications, the instrument precision under the same situation, consider the actual measured flow value range range compress instrument to most close to the measured values in order to improve the measuring accuracy of purpose. And with ruler 1cm things than by measuring accuracy one point one.If you want to compare the difference in the flow of the medium between the two pipes, it is recommended to use the instrument with the same accuracy. Of course, if the same period, calibration of the factory instrument is the bestYou two meters here are 8% precision, that is not equal to the actual flow, and between them, there is no need to consider the accuracy of the problem, just as a reference value
There are two conditions for the difference in flow obtained with these two flowmeters:1. Compare these two flowmeters on a single pipe to measure the same medium. If traffic shows a difference, then you should trust the 250L/min flowmeter.2. Use the two flowmeters to measure the same medium on different pipes. If there is a difference, as long as the accuracy is within the allowable range. So the difference doesn't mean anything.
