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HELIO2
BLENDEr
HELIUM-OXYGEN
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
concentration
discrepancy
between Blender
setting and
alarmed Oxygen
Monitor / Analyzer
(greater than 3%)
1. •HIGH ow model,
ow requirement
below 15 lpm.
•
LOW ow model,
ow requirement
below 3 lpm.
2. Alarmed Oxygen
Monitor / Analyzer
inaccurate
3. Low ow bleed
obstructed
4. Gas supply
contaminated or
heliox concentration
incorrect
5. Downstream device
causing back ow
or restricted ow
6. Supply pressure
imbalanced
1. Use auxiliary outlet &
engage bleed
2. Recalibrate alarmed
Oxygen Monitor /
Analyzer or Verify
with second alarmed
Oxygen Monitor /
Analyzer
3. Remove obstruction
4.
Check gas sources
with calibrated alarmed
Oxygen Monitor /
Analyzer to conrm
oxygen is 100% and
verify heliox tank content
5. Isolate Blender. Check
oxygen concentration at
Blender Outlets
6.
Assure
heliox
and
oxygen inlets pressures
are within 10 psi
Noowat
Blender outlets
1. Gas sources turned
“OFF”
2. Gas sources not
connected
1. Turn gas sources “ON”
2. Connect gas sources
Alarm sounding
1.
Difference between
oxygen and heliox
inlet pressures
greater than specied
1. Correct pressure
difference until heliox
and oxygen pressures
are within specication