When the instrument operates in the following cases, it may cause the flow rate display value to fluctuate, or the detection results are not repetitive.

1. The temperature of the inspected part is inconsistent with the room temperature. Solution: Place the inspection part in the inspection studio for a period of time so that the temperature is consistent with the temperature of the inspection studio.

2. The fixture of the instrument and the inspected part is invaded by direct sunlight or cold and hot wind. Solution: The fixture of the instrument and the workpiece to be inspected is kept away from direct sunlight and hot and cold winds, preventing changes in gas density in the pipeline.

3. The inspected parts are made of rubber and other deformable materials. Solution: Lengthen the time of the pressurization process so that the deformation of the workpiece under inspection has reached its maximum at the time of this process.

4. Fluctuation of external air source. Solution: Add an air storage tank on the outside