| 摘要 |
The present invention relates to a backwashing method to prevent a connection pipe, a valve, a sensor array space or the like from being polluted by a sample in a measuring method using a gas sensor. The backwashing method is introduced to make up for a disadvantage of a conventional normal washing method frequently used to prevent pollution. According to the conventional normal washing method, because the direction where a sample is introduced is equal to the washing direction, it is difficult to clean a connection pipe before clean air from a clean air generator is introduced. Particularly, in a case where moisture is introduced, no method to prevent the gas sensor from easily being damaged by the moisture is suggested. According to the present invention, the backwashing method is a method to perform a backwashing with the connection pipe and the valve. The backwashing method has an advantage where cleaning up to the entrance of the suction part where the sample is introduced is possible, a degree of precision of measurement is increased by discharging the moisture, which may be generated in the surroundings of the sensor and the interior of the connection pipe due to the introduced moisture, to the outside, and reduction of the life span of the sensor and damage to the sensor can be prevented. |
