1. Power on a vortex flow meter
a. If flow meter work well after power connected
b. Turn on the bypath valve, let liquid go through slowly,
c. Turn on upstream valve slowly,let liquid pass through pipe and flow meter, after make sure all works well, turn on the downstream valve slowly,let liquid pass through vortex flow meter and coorresponded sensor
d. after get a stable flow, and all meters work well, turn off bypath valve.
e. Fully open the upstream valve, and adjust downstream valve, keep the flow range within standard.
2.Power off a vortex flow meter
a. cut down power
b. open bypath valve, let liquid go through the bypath valve.
c. Turn off upstream valve
d. Turn off downstream valve
e. if uninstall a vortex flow meter, firstly keep the inside pressure the same as the astomsphere , then remove the flow meter
f. When power on/off, slowly turn off upstream and downstream valve, in case the water hammer and pressure piling destroy meters and other equipment.