GCE MediVitop Mode D'emploi page 7

Check that there is a gas flow at each "flow selector"set position in both anticlockwise and
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clockwise turning direction (for instance by sound or checking presence of bubbles in a hu-
midifier)..
Turn off at the shut-off valve by turning the combination control knob"shut-off valve & flow
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selector" in a clockwise direction to OFF position. Do not use excessive force (Maximum
recommended closing torque is 3 Nm).
For combination valves fitted with pressure outlet, ensure it is in working condition by con-
•
necting and disconnecting quick-coupler probe.
If any leakage is detected, apply the procedure described in Chapter 6.2.3. and return the
valve for service.
Sudden opening could result in a danger of fire or explosion arising from oxygen pressure
shocks.
6.1.2. USE OF COMBINATION VALVE
6.1.2.1. Use of combination valve flow outlet and setting of flow
Ensure that the accessory is connected to the flow outlet.
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Open slowly the combination control knob "shut-off valve & flow selector" in anticlockwise
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direction to ON position.
Set the combination control knob "shut-off valve & flow selector" on one required flow rate.
•
Before connecting any accessory to the flow outlet make sure that the patient is not con-
nected
Sudden opening could result in a danger of fire or explosion arising from oxygen pressure
shocks.
Always ensure that the combination control knob "shut-off valve & flow selector" has been
engaged and not placed between two settings otherwise the flow control head will not deliver
correct flow of medical gas.
On flow control head, each valve is provided with so-called "end stop" located downstream
the maximum flow position. Do not try to apply excessive force on the combination control
knob "shut-off valve & flow selector" when it stops on the maximum flow position during an-
ticlockwise rotation.
Medical gas flow rate must be prescribed by a doctor.
6.1.2.2. Use of combination valve pressure outlet
Ensure that the accessory IS NOT connected to the pressure outlet.
•
Open slowly the combination shut-off valve by turning slowly the combination control knob
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"shut-off valve & flow selector" in anticlockwise direction to ON position.
Connect the accessory to the pressure outlet.
•
Before connecting any accessory to the pressure outlet make sure that the patient is not con-
nected and the accessory outlet is secured.
If pressure outlet is to be connected to a medical device that requires high gas flow (for
instance pulmonary ventilator that requires gas flow 100 l/min at the minimum pressure 2.8
bar), com- pare the required flow of connecting medical device with pressure and flow char-
acteristics of the combination valve stated in appendix Nr. 1. To assure sufficient performance
(pressure and flow characteristics of the combination valve ) the medical device should not be
used if pressure indicator enters the red zone.
Sudden opening could result in a danger of fire or explosion arising from oxygen pressure
shocks. Insufficient opening of the shut-off valve could reduce actual flow delivered.
If a pressure outlet as well as a flow outlet are part of the combination valve do not use them
simultaneously, especially if pressure in the cylinder is below 50 bar, in could adversely affect
the outlet parameters of the combination valve .
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EN