6-1 
6 System Calibration 
 
 
6.1 Overview 
This section elaborates how to test and calibrate the A8/A9 anesthesia machine. Calibration refers 
to mechanical and electrical adjustments using test devices. 
  Functional tests must be performed after calibration to verify the calibration 
result. 
 
Ensure that all test materials including the drive gas, breathing circuits, test fixtures, tools, and 
documents are the latest, available, and calibrated prior to system calibration. 
6.2 Precautions 
6.2.1 Warnings 
 
  Use fuses of the specified type and rating to prevent fire. 
  The machine (protection class I) can be connected only to a correctly grounded 
power supply (including the socket with grounding contact) to prevent electric 
shocks. 
  Remove all auxiliary devices from the shel
f before moving the anesthesia 
machine on the rough road or any slope. The anesthesia machine with a weight 
on its top is likely to tip over, causing personal injuries. 
 
To avoid the possible explosion hazard, do not operate the machine near 
flammable anest
hetic agents or other flammable substances. Do not use 
flammable anesthetic agents such as ether or cyclopropane. 
  When high-frequency electric surgery equipment is used, anti-
electrically conductive breathing tubes may cause burns. Therefore, they are 
recommended at no time. 
 
The electric shock hazard may exist. The machine can be opened only by 
authorized service personnel. 
 
According to IATA and DOT regulations, compressed gases are dangerous. 
Therefore, the packages or transport packages of dange
rous goods must be 
properly identified, packed, marked, classified, labeled, and documented in 
accordance with the DOT and IATA regulations. For details, see the 
International Air Transport Association – Dangerous Goods Regulations and/or 
Part 171-180 "Transportation" in Title 49 of the Code of Federal Regulations.