Reverse Gas Flow Procedure
(CE Requirements ONLY)
1.Assure bleed flow 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 flow.
2.Place the free end of the oxygen supply hose under water. While gradually increasing the heliox supply pressure from
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
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 HELIO2 Blender to heliox cylinder and oxygen supply.
3.Connect oxygen flowmeter to Blender outlet.
4.Adjust the Oxygen Concentration Dial to the prescribed concentration. The balance of the concentration will be helium exiting the flowmeter.
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.Confirm the flow 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 flows.
•An oxygen flowmeter should be used on the outlets of the HELIO2 Blender along with the corresponding flow conversion chart.
•Actual flow from an oxygen flowmeter utilized to deliver heliox are higher than read on the flowmeter.
HELIO2 |
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Blender | 9 |