Rotameter problem
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When the rotameter is actually used, due to the difference between the actual measured medium and the calibration medium, errors occur in the indicated value of the rotameter. Does it need to be re-corrected? Why?
As you said, if the media is changed and errors occur, then it must not be usable. As for correction, how do you want to correct it? Manual correction is possible, but very troublesome. According to the principle of the rotameter, because your measured density has changed, the flow calculation will be inaccurate. However, the scale has been set on the meter, and you definitely cannot change it on the surface. For remote transmission, you can convert it yourself, which is actually a compensation correction for the density. Use this formula for compensation. Note that you may need to change the standard conditions when measuring gas~
Unable to calibrate, it is related to the quality of the rotor
The density is different and can be converted and corrected.