Drive SmartDose CTOX-MNO2 Manuel D'instructions page 19

TROUBLESHOOTING (Cont.)
PROBLEM
SmartDose works fine
for some time and
then sensitivity seems
to drift or unit stops
working.
Short battery life.
Non-functioning units are subject to warranty provisions and the manufacturer repair/return policy.
If necessary, call your Home Care Provider.
NOTE: Do not attempt to open the unit. If the unit is opened or tampered with, the warranty is void.
PROBABLE CAUSE
Cannula has too much back pressure
(pediatric).
Pressure sensor is not zeroed.
Non-alkaline batteries are used.
Batteries are faulty.
SOLUTION
Replace cannula with standard cannula.
Power off unit by removing batteries. Remove
cannula from nose. Reinstall batteries, power on
unit, insert cannula and resume normal breathing.
Make sure the batteries inside the unit are alkaline.
Replace batteries. (See "Installing Alkaline
Batteries" section).
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