Function check 45
4. Check that all screwed connections and tube
connections are secure. Tighten up screwed
connections
by hand if necessary.
Under no circumstances may you tighten up the
screwed connections with a spanner or other
tools.
5. Open the oxygen supply valve slowly.
6. Close the valve again.
7. Watch the needle of the pressure gauge on the
pressure reducer for approx. 1 minute.
If the needle position remains constant, the
system is leaktight.
If the needle keeps dropping, there is a leak.
Eliminating a leak
We recommend keeping
replacement seals for the
connections in stock.
1. Prepare a solution of soap and water using
unperfumed soap.
2. Use this solution to wet all connections, whether
screwed, tube or plug connections. Bubbles will
now form at the site of any leak.
3. Depressurize the system (shut off the oxygen
supply, briefly switch on the module then switch
it off again).
4. Replace the damaged sealing rings.
5. Then check for leaks again.
12.4 Checking inhalation
Required for Oxygen
MODULE and Combi
MODULE
1. Connect the inhalation mask to the threaded
connection for inhalation.
2. Open the oxygen supply valve
slowly.
3. Switch on the module.
4. Use the dial to set oxygen output to 6 l/min.
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