Patent ID: 11873916
Assignee: FUJIKIN INCORPORATED
Field: Control (Instruments)
Classification: CPC F  G  H  Y | IPC F  G  H

Claim 9:
10. The fluid supply method according to claim 9, comprising:
a step of closing the valve device of the fluid control device after the step of supplying the gas to end a first process; and
a step of opening the upstream on-off valve after closing the valve device of the fluid control device to store the gas in the tank, and then closing the upstream on-off valve and opening the valve device of the fluid control device to perform gas supply in a consequent second process,
wherein the reference pressure drop curve is obtained by using the pressure sensor when supplying the gas in the first process, and in the process subsequent to the first process, the operation of the sub actuator is controlled by using the reference pressure drop curve obtained in the first process.