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7.2. USE OF THE COMBINATION VALVE
7.2.1. USE OF THE COMBINATION VALVE FLOW OUTLET AND SETTING OF FLOW
Ensure that the combination control knob "shut-off valve & flow selector" is in OFF position.
•
Ensure that the hose/cannula is compatible with the flow outlet features and is well secured.
•
Connect associated equipment to the flow outlet.
•
Slowly open the combination control knob "shut-off valve & flow selector" in the direction to
•
ON position.
Set the combination control knob "shut-off valve & flow selector" to required flow position
•
which corresponds to value pointed by the triangular pointer. Ensure flow control head
engages correctly.
Before connecting any associated equipment to the flow outlet make sure that the patient is
not connected.
Sudden opening could result in a danger of fire or explosion arising from oxygen pressure
shocks.
Always ensure that the flow control head has engaged and not placed between two settings
otherwise the combination valve will not deliver the 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
rotation.
Do not use the flow outlet for driving any medical equipment.
7.2.2. USE OF COMBINATION VALVE PRESSURE OUTLET
Ensure that the combination control knob "shut-off valve & flow selector" is in OFF position.
•
Ensure that the associated equipment IS NOT connected to the pressure outlet.
•
Slowly open the combination shut-off valve by turning the combination control knob "shut-off
•
valve & flow selector" in the direction to ON position.
Ensure the medical quick coupler of associated equipment is compatible with the pressure
•
outlet feature.
Connect the medical quick coupler of associated equipment into the pressure outlet.
•
Ensure that quick coupler of associated equipment is well secured.
•
Before connecting any associated equipment to the pressure outlet make sure that the patient
is not connected and the accessory outlet is secured.
If the pressure outlet is to be connected to a medical device that requires a high gas flow (for
instance a pulmonary ventilator that requires a gas flow of 100 l/min at the minimum pressure
2.8 bar), compare the required flow of connecting the medical device with the pressure and
flow characteristics 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 the 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 the actual flow delivered.
If a pressure outlet and flow outlet are used simultaneously, GCE does not guarantee
the outlet parameters as specified in Appendix Nr. 1 - Flow curve.
7/286
EN
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