GCE MediVital Manuel D'utilisation page 10

external damages, remove the product from service and suitably identify its status.
•
Check the combination valve for contamination. If needed apply the cleaning procedure
according to chapter 8.
•
Check that the cylinder gas pressure indicator indicates sufficient pressure. If it indicates in
the red zone, return the cylinder with combination valve back for filling.
EN
Leak-tight and functional test before use:
•
Set flow control head (if any) on ZERO position - ensure the flow control head engages
correctly.
•
Slowly open shut-off valve handwheel (anticlockwise) until fully open - after approx. 1 turn
(see indication in picture chapter 5).
•
By listening check for leakage (leakage would be heard as characteristic hiss of flowing
gas).
•
Check that there is a gas flow at each flow control head set position in both clockwise and
anticlockwise turning direction (for instance by sound or checking presence of bubbles in
a humidifier).
•
Close the shut-off valve (clockwise). Do not use excessive torque (max. closing torque is 5
Nm).
•
Reset flow control head to ZERO position and ensure flow control head engages correctly.
•
For combination valve fitted with pressure outlet, ensure it is in working condition by
connecting and disconnecting quick-coupler probe.
6.2.2 USE OF COMBINATION VALVE
6.2.2.1 Use of combination valve flow outlet and setting of flow:
•
Ensure the flow control head is in position "0".
•
Connect accessories to the flow outlet.
•
Slowly open shut-off valve handwheel (anticlockwise) until fully open - after approx. 1 turn
(see indication in picture chapter 5).
•
Set flow head to required flow position. Ensure flow control head engages correctly.
Before connecting any accessory 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. Insufficient opening of the shut-off valve could reduce actual flow
delivered.
Always ensure that the flow control head has been correctly set and not placed between
two settings. Flow control head placed between settings will not deliver correct flow of
medical gas.
Common variants of flow control head can have an "end stop" in between the maximum
flow position and the zero position. Do not try to apply excessive force on the flow
control head when it stops in the maximum flow position (during clockwise rotation) or
in zero position (anti-clockwise rotation).
Medical gas flow rate must be prescribed by a doctor.
6.2.2.2 Use of combination valve pressure outlet
•
Ensure the flow control head is in position "0" (if included).
•
Slowly open shut-off valve handwheel (anticlockwise) until fully open - after approx. 1 turn
(see indication in picture chapter 5).
•
Connect accessory to the pressure outlet if not already connected.
Before connecting any accessory to the pressure outlet make sure that the patient is
not connected 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), compare the required flow of connecting medical device with pressure and flow
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