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•
pressure gauge
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shut-off valve
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the lower part of flow control knob (fuse venting)
If any leakage is detected, apply the procedure described in Chapter 7c. and return the
valve to GCE for service.
Functional check before use
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Set flow control knob on ZERO position - ensure that flow control knob engages correctly.
•
Open slowly the combination shut-off valve by turning the hand wheel in anticlockwise
direction approx 1 to 1½ turns.
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.
•
Check if pressure is indicated on pressure gauge. If pressure indicator enters red zone,
return the medical package (cylinder with valve) for its refilling.
•
Check that there is a gas flow at each set positions in both clockwise and anticlockwise
turning direction (for instance by sound or checking presence of bubbles in a humidifier).
•
Turn off at the shut-off valve by turning the hand wheel in a clockwise direction to stop
position. Do not use excessive force (Maximum recommended closing torque is 3 Nm).
•
Reset flow control knob on ZERO position when it's not venting anymore - until the flow
control knob engages.
•
For combination valve fitted with pressure outlet, ensure it is in working condition by
connecting and disconnecting quick-coupler probe (refer to the section hereunder for
pressure outlet connection).
6b.2 USER OUTLET(S) CONNECTION
List of recognized accessories
To be connected to the flow outlet:
•
humidifier extension (the outlet hose nipple is in horizontal position, a "L-shaped" extension
may be necessary to use a humidifier, ask for special extension & humidifiers from GCE),
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oxygen tubing connected with breathing mask or cannula,
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gas saver,
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atomizer.
To be connected to the pressure outlet:
•
low-pressure hoses,
•
flow meters,
•
Venturi suction ejectors.
Before connecting any accessory or medical device to the regulator, always check
that they are fully compatible with the product connection features & the product
performances.
Pressure outlet
•
Ensure that the quick-coupler probe is compatible with the pressure outlet features.
•
Connect the quick-coupler probe.
•
Ensure that quick-coupler probe is well engaged.
If the pressure indicator enters red zone and the gas is supplied via pressure outlet,
outlet pressure P2 can be lower than 3.6 bar (see appendix nr. 1 for each product).
If pressure outlet is to be connected to 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), check required flow of connecting medical device with pressure and
flow characteristics of the valve stated in appendix nr. 1. For assurance of sufficient
performance (pressure and flow characteristics of the valve) do not use medical
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