User Troubleshooting - CAIRE HELiOS Series User Manual

HELiOS 300 & 800
Operating Instructions –
Level Verification
1. Lift the H300/H850 by the contents indicator
strap.
2. Push the bottom backside of the unit forward
until it is straight up and down.
3. Observe the green bar in the contents indica-
tor window. The window is completely filled
with the green bar when the unit is full of liquid
oxygen.
Portable Full
Checking the H300/H850 contents indicator
10 - ENG PN 21033264 B | User Manual
Portable Empty

User Troubleshooting

The following information is intended to help you
troubleshoot and solve simple operational problems
that you may experience when using your HELiOS
Portable.
1. The Portable makes a hissing sound.
• Hissing can occur to maintain the correct
operating pressure within the Portable. It is
most likely to hiss after filling or when the
position of the Portable is changed. Hissing
can last for approximately 10 minutes after
filling. Additionally, it can occur when the
flow control valve is at a low setting.
2. The Portable does not pulse after filling.
• If during the filling process, the Portable is
disengaged with the vent valve lever down,
pressure may be reduced within the Portable
causing a delay in the conserving device
function. It may require as much as 60 min-
utes to restore adequate pressure for accurate
oxygen flow. Additionally, improper filling
or lower than normal operating pressure in
the Reservoir will contribute to the unit not
pulsing.
3. The Portable stops pulsing during use.
• Ensure that both connections of the dual
lumen cannula are firmly attached to the
Oxygen Outlet and Sensor connectors.
• Change the cannula if water droplets are pres-
ent from humidified exhaled gas. Replacing
the cannula with a dry one enhances the
ability of the Portable to pulse.
• Ensure that the cannula is not kinked.
• Ensure that the cannula tips remain in your
nostrils and do not slide to one side.
• Ensure that there is oxygen in the Portable.
• With the cannula on, close your mouth and
breathe only through your nose to verify that
the Portable has stopped pulsing.
4. The Portable does not fill.
• Verify that there is oxygen in the Reservoir.
• Ensure that the Portable and Reservoir fill
connectors are fully engaged throughout the
filling process.
5. The Portable vent valve does not close properly
at the end of the filling process.
• If the vent valve fails to close and the hissing
sound and oxygen vapor cloud continue,
carefully remove the Portable by depressing
the release button on the Reservoir. Venting
from the bottom of the Portable will stop in
a few minutes. Allow the unit to warm until
you can close the vent valve. The Portable
may require as much as 60 minutes to restore