| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas chromatograph and flow controller for preventing carrier gas from being supplied into a sample introduction unit at an excessive flow rate at the time of startup.SOLUTION: At the time of startup, the flow rate of carrier gas is controlled so that the flow rate of the carrier gas detected by a differential pressure sensor 32 is equal to a predetermined temporary set flow rate. After the inlet pressure detected by an inlet pressure sensor 51 reaches a threshold, the carrier gas is adjusted to the set flow rate in a state in which the inlet pressure is kept at a predetermined set pressure. The temporary set flow rate of the carrier gas is set appropriately, and the carrier gas is prevented from being supplied into a sample introduction unit 2 at an excessive flow rate at the time of startup.SELECTED DRAWING: Figure 1 |
