6-51 
 
6.3.9 Internal AG Calibration (User) 
Connect the internal AG module to standard gases (Gas concentration should meet the following 
requirements: AA≥1.5%,CO2≥1.5% ,N2O≥40%,O2≥40%,of which AA represents an 
anesthetic agent. a/c≤0.01(a is the gas absolute concentration accuracy; c is the gas 
concentration), as shown in the figure below. 
Built-in AG 
module
Gas 
cylinder
Pressure 
reducing 
valve
Three-way 
connector
 
  When checking the internal AG module, open the back cover of the machine, 
disconnect the tubing as shown below and connect the standard gas to the gas 
inlet.