6-62 
Failure 
Description 
Possible Cause  Recommended Action 
properly and whether leakage 
occurs. 
3.  Check whether leakage occurs 
in the internal pipeline of the 
machine so that the fresh gas 
cannot flow through the 
sampling point. 
4.  Replace the AG module. 
 
6.4 Tests After Calibration 
For test items after flow and pressure calibration, see 5.2 System Check and 5.14 System 
Ventilation Performance Tests.