Troubleshooting
If the HELIO2 Blender fails to function, consult the Troubleshooting Guide below.
If problem cannot be solved by using Troubleshooting Guide, refer to the HELIO2 Blender Service Manual (P/N 506124) available on the Internet; www.precisionmedical.com or consult your Provider.
Problem
Probable Cause
Remedy
Oxygen | 1. | •HIGH flow model, | 1. Use auxiliary outlet & |
concentration |
| flow requirement | engage bleed |
discrepancy |
| below 15 lpm. |
|
between Blender |
| •LOW flow model, |
|
setting and |
| flow requirement |
|
alarmed Oxygen |
| below 3 lpm. |
|
Monitor / Analyzer | 2. Alarmed Oxygen | 2. Recalibrate alarmed | |
(greater than 3%) |
| Monitor / Analyzer | Oxygen Monitor / |
|
| inaccurate | Analyzer or Verify |
|
|
| with second alarmed |
|
|
| Oxygen Monitor / |
|
|
| Analyzer |
| 3. | Low flow bleed | 3. Remove obstruction |
|
| obstructed | 4. Check gas sources |
| 4. | Gas supply | |
|
| contaminated or | with calibrated alarmed |
|
| heliox concentration | Oxygen Monitor / |
|
| incorrect | Analyzer to confirm |
|
|
| oxygen is 100% and |
|
|
| verify heliox tank content |
| 5. | Downstream device | 5. Isolate Blender. Check |
|
| causing back flow | oxygen concentration at |
|
| or restricted flow | Blender Outlets |
| 6. | Supply pressure | 6. Assure heliox and |
|
| imbalanced | oxygen inlets pressures |
|
|
| are within 10 psi |
No flow at | 1. | Gas sources turned | 1. Turn gas sources “ON” |
Blender outlets |
| “OFF” | 2. Connect gas sources |
| 2. | Gas sources not | |
|
| connected |
|
Alarm sounding | 1. | Difference between | 1. Correct pressure |
|
| oxygen and heliox | difference until heliox |
|
| inlet pressures | and oxygen pressures |
|
| greater than specified | are within specification |
HELIO2 |
|
Blender | 13 |
