18
Gas Supply Failure
If the central gas supply fails, the
message “No N
2
O, O
2
or AIR
DELIVERY” appears on the
screen.
Air or oxygen will be delivered in
place of the gas mixture
previously delivered; the amount
of fresh gas ow (l/min)
will remain the same.
100% Air will be delivered if
O
2
fails.
100% O
2
will be delivered if N
2
O
or air fails.
• Open the appropriate backup
gas cylinder valve for O
2
or
N
2
O, or reconnect the central
gas supply.
If the carrier gas N
2
O fails, you are
able to use Air and vice versa.
Emergency Scenarios
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