Section 3
Daily Checkout
*10. Check additional (optional) gas cylinder supplies.
A. With the cylinder closed, open the flow control valve of the
associated gas until the cylinder and pipeline pressure
gauges (air only) indicate zero pressure.
B. Close the cylinder valve and remove the cylinder from the
yoke. Verify that there is one cylinder gasket and there
are two index pins. Verify that the cylinder matches the
associated yoke label. Place the cylinder back in its yoke.
C. Open the associated flow control valve until the cylinder
pressure gauges indicate zero pressure. Open the cylinder
and check the cylinder pressure gauge. Replace the
cylinder if its contents are insufficient for the intended
procedure. To check for a high pressure leak, close the
cylinder and observe the cylinder pressure gauge for a
prominent decrease in the pressure.
NOTE: After testing all of the gas circuits, drain the oxygen
circuit by closing the oxygen cylinder and actuating the
oxygen flush button on the front of the anesthesia
machine. Hold the button in until the pressure gauges
indicate no pressure.
The following table shows the full and minimum pressures (E-size
cylinders at 70°F, 21°C) for all gases available for the anesthesia
machine.
GAS PSI - FULL
*
PSI - MIN
Air 1900 1000
Carbon Dioxide 838 600
Oxygen-Helium 1900 1000
Nitrous Oxide 745 600
Oxygen 1900 1000
*typical full load
3-3
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