Water traps
1 Water traps are recommended in both the inspiratory
and the expiratory lines during prolonged anaesthesia,
low-flow anaesthesia and when using humidified
breathing gas.
– Water traps must be fitted at the lowest point in the
hose and hang downwards.
– Check regularly and drain if necessary.
Observe hygiene regulations –
risk of infection!
The hose system remains sealed. The container must
be replaced securely!
»Tips on reducing condensation« on page 136.
Reserve gas cylinders (optional)
● Open cylinder valves.
✔ Check and tick off:
● Pressure indicator on O2 cylinder exceeds 50 bar? –
Pressure indicator on N2O cylinder exceeds 30 bar? –
Replace cylinders if not.
● Close cylinder valves!
Pipelinie gas supply
● Have connectors been pressed right into the wall
sockets for O2, AIR and N2O (not in holding
position!)?
✔ Check and tick off:
2 Pointers of all three pressure indicators are in the
green range.
Gas delivery
3 Switch over to AIR.
4 Open O2 and AIR delivery valves until more than
9 L/min are indicated!
5 Open N2O delivery valve completely.
✔ Check and tick off:
Does N2O measuring tube indicate 0?
3 Switch over to N2O.
✔ Check and tick off:
Does N2O measuring tube indicate more than 9 L/min?
Does AIR measuring tube indicate 0?
24
Preparing for use
Checking readiness for operation with checklist
Water traps, Reserve gas cylinders
Pipelinie gas supply, Gas delivery
G
A
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