Helio PM5500 用户手册

9

(

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 

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 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 

 Blender Service Manual (P/N 

506124

).

4. Repeat steps 1-3 to check for leakage past the heliox inlet check 

valve.

Inspect the H

 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

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.

•  Refer to “Oxygen Flowmeter Conversion Chart” for corrected 

heliox flows.

•  An oxygen flowmeter should be used on the outlets of the H

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.