Use Of Product; Before Use - GCE MediVital Mode D'emploi

J - EXCESS FLOW DEVICE OR DIP TUBE (OPTION)
Excess flow device ensures safe ventilation of gas from gas cylinder in case the combination
valve is broken above inlet stem (e.g. cylinder fall). Dip tube does not have such function. Excess
flow device and dip tube are to avoid contamination from cylinder entering the combination
valve.
PRESSURE RELIEVE DEVICE OF HIGH PRESSURE PART - BURSTING DISC (OPTIONAL)
The high pressure relieve device is intended to protect the cylinder and high pressure part
of combination valve against damage caused by increased cylinder pressure. If the pressure
relieve device has been activated, it will not reseal and the combination valve must be taken
out of service for repair (see Chapter 9).
Note: Colour of the product (especially guard, flow control head and shut-off valve) does not
have to match the gas colour coding.

6. USE OF PRODUCT

6.1. OPERATIONS PERFORMED BY USER

6.1.1. BEFORE USE

VISUAL INSPECTION BEFORE USE:
Check the combination valve for damage (incl. label and marking). If it shows signs of external
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damages, remove the product from service and suitably identify its status.
Check the combination valve for contamination. If needed apply the cleaning procedure
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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.
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).
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• 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.
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• For combination valve fitted with pressure outlet, ensure it is in working condition by
connecting and disconnecting quick-coupler probe.
6.1.2. USE OF COMBINATION VALVE
6.1.2.1. 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.
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EN