Possibly a grain of sand or debris in the flow tube.
One can recalibrate a flow meter by having a company or owning a flow meter supplier or using a flow meter lab. No matter what type of flow meter they need to be checked to see if they need to be recalibrated regularly.
A flow meter is a device that measures the energy flow of either a liquid or a gas. Like if you have nitrous oxide in a tank and you want to know how much is left after you use some, a flow meter would tell you.
There are no major disadvantages of thermal mass flow meter as compared to its advantages. But cons of thermal mass flow meter includes: Not effective in Vibrations and turbulence You should install flow straightener with flow meter Periodic cleaning needed
THE SYMBOL FOR Flow Meter is : FI as Flow Indicator
The above is the symbol of flow meter.
light meter
rota meter
I believe it depends on what kind of flow meter you are looking for. They can range from 19.99 and go up. The more expecive it gets the better the flow meter.
it principle denpend on what kind of flow meter. example, magnetic flow meter, it use magnetic force to measuring or coriolis flow meter which is use vibrated capilary tube as sensor. or more info you might watch on youtube.
The purpose of a flow meter is to measure the flow of either air or water. They allow one to measure the total volume of air or liquid flow and the rate of the flow.
If the instrument panel is not working than its most likely to be a loose connection. This was the case with my corsa. also poor running due to the sensors which i had to change and air flow meter was faulty.
The flow would be 2.5 with a meter with 12 inch diameter. This is with a flush at 5.0 FPS.