Turning The Vaporiser "On" And "Off - Norvap Apollo Operation & Maintenance Manual

Warning: Do not drain agent into any container other than a
properly labelled drug specific container.
The vaporiser must be filled and operated in an upright position. If the
vaporiser is not completely in the upright position and deviates slightly this will
not affect the output or the safety of the vaporiser.
Periodically ensure that the agent levels are checked and that the vaporiser is
re-filled at regular intervals. As long as the vaporiser is above the line
then the vaporiser will function in accordance with its specifications.
Not exceeding two weeks ensure that the vaporiser is drained into a drug
specific container, ideally when the agent is low on the agent level indicator.
This helps to remove accumulated contaminants and stabilisers and oxidised
impurities preserving the drug purity. Less frequent draining maybe allowed if
the anaesthetic agent does not contain additives or stabilising agents.
If using infrequently, Halothane vaporisers must be drained after use. When
Halothane decomposes it releases halides which can corrode metal
components, especially when in contact with water. Halothane also contains a
preservative, which is added by the manufacturer to inhibit decomposition,
which can cause vaporiser components to stick.

5.2 Turning the vaporiser "ON" and "OFF"

To turn the vaporiser "ON" depress the dial control release button and turn the
dial in a counter-clockwise direction. See Figure 1.
To increase the concentration, turn the dial counter clockwise passed the zero
mark to the required % concentration.
To reduce the concentration, turn the dial clockwise.
To avoid inadvertent delivery of small concentrations of agent, the dial control
must be turned to "OFF" when the vaporiser is not in use. Ensure the Release
Button returns to the locked position.
The vaporiser must not be used set between the Off and the Zero mark
Doc. No. 157 Issue 1.0 Draft Apollo Operations Manual
20 March 2019 Page 13 of 27