| 摘要 |
The present invention is intended to provide a gas analyzing system that can perform calibration without being influenced by the deterioration of span gas in a span gas supply line, and provided with an open-close device control part 61 that receives a calibration start signal issuing an instruction to start zero calibration and span calibration, and controls an open-close device 31 for a span gas flow path 3 and an open-close device 21 for a zero gas flow path 2, wherein if the open-close device control part 61 receives a new calibration start signal after a predetermined time has passed since previous calibration was performed, before the span calibration is started, for a predetermined time, the open-close device control part 61 controls the open-close device 31 for the span gas flow path 3 so as to open the open-close device 31 for the span gas flow path 3, and thereby purges span gas that remains in the span gas flow path 3. |
