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HELIO2
BLENDEr
HELIUM-OXYGEN
REVERSE GAS FLOW PROCEDURE
(
CE Requirements ONLY)
1. Assure bleed ow valve is not engaged. Disconnect the oxygen hose
from the gas source. Remove all outlet connections from the
HELIO2
Blender to ensure that there is no outlet ow.
2.
Place the free end of the oxygen supply hose under water. While
gradually increasing the heliox supply pressure from 30-75 psi
(2.07-5.17 bar) check for leakage past the oxygen inlet check valve.
3.
Replace the Duckbill Check Valve in the oxygen inlet, if leakage is
>100 ml/min. Reference
HELIO2 Blender Service Manual (P/N 506124).
4. Repeat steps 1-3 to check for leakage past the heliox inlet check
valve.
OPERATING INSTRUCTIONS
CAUTION
Inspect the HELIO2 Blender for visual damage before use,
DO NOT USE if damaged.
1. Secure Blender to wall or pole mount bracket.
2. Connect heliox and oxygen supply lines from H
ELIO2 Blender to
heliox cylinder and oxygen supply.
3. Connect oxygen owmeter to Blender outlet.
4. Adjust the Oxygen Concentration Dial to the prescribed
concentration. The balance of the concentration will be helium
exiting the owmeter.
NOTE: The Oxygen Concentration Dial does not rotate 360°. DO
NOT force dial beyond the oxygen concentration endpoints
as this will damage the Blender.
5. Conrm the ow of heliox mixture to the patient.
6. Actual heliox concentration to the patient may vary due to
entrainment of room air via the patient interface device.
CAUTION
• Refer to “Oxygen Flowmeter Conversion Chart” for corrected
heliox ows.
• An oxygen owmeter should be used on the outlets of the
HELIO2
Blender along with the corresponding ow conversion chart.
• Actual ow from an oxygen owmeter utilized to deliver heliox
are higher than read on the owmeter.