3-12
AG Calibration
Tools required:
! Gas cylinder with a certain standard gas or standard gas mixture. Gas concentration
should meet the following requirements respectively: AA≥1.5%, CO2≥1.5%, N2O≥40%,
O2≥40%, of which AA represents an anaesthetic agent. The gas concentration accuracy
should have a tolerance as follows: AA±0.15%, CO2±0.1%, N2O±1%, O2±1%.
! T-shape connector
! Tubing
NOTE
" When calibrating a particular gas in a mixture, only the concentration of the gas to
be calibrated needs to meet the requirements.
" Handle the gas cylinder by following the instructions on the gas cylinder(s).
Follow this procedure to perform the AG calibration:
1. Select [Main Menu]→[Maintenance >>]→[User Maintenance >>]→enter the
required password→[Module Maintenance >>]→[Calibrate AG >>]..
2. Check the airway and make sure that there are no occlusions or leaks.
# Vent the sampling tubing to the air and check if the [Current FlowRate] and
[SetFlowRate] are approximately the same. If the deviation is great, it indicates
that there is an occlusion in the tubing. Check the tubing for an occlusion.
# Perform a leakage test to make sure that the airway has no leakage.
3. Connect the test system as follows:
4. Open the relief valve and vent a certain standard gas or gas mixture and make sure that
there is an excess gas flow through the T-shape connector to air. And wait for at least 30
seconds until the gas reading stable.
Monitor
Gas cylinder
Open to the air
Relief valve
Tubing
T-shape connector
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