Flow meter calibration experiment, how to check the system exhaust is complete
Generally slightly unscrew the differential pressure transmitter positive and negative pressure chamber discharge plug, discharged to the liquid out and no bubbles can be.
In the flowmeter checkout experiment, how to check the system exhaust is completely looking at your flow device or system. There are several measures that can be used: 1) Install a transparent pipe at the corner of the horizontal and vertical pipe. Thus to direct observation. 2) Add an exhaust valve to the top of the vertical pipe. After passing the water, stop the water flow and open the exhaust valve until no gas is discharged.
