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General Status Display
In Standby Mode, this display field alternates between a display of the current date, the current
function mode, the Z-Breathe setting and the Auto Stop feature. During treatment and while
setting treatment parameters, this display field shows the currently selected function mode
(CPAP) and Z-Breathe setting (1, 2 or 3).
The General Status Display field may also give notification of certain events which will NOT
prevent the Z2 from operating normally but may need to be addressed by the user.
Code Event Resolution
Fail 1 Attempt to restart while motor is still running Wait at least 10 seconds before
attempting to restart treatment
again.
Fail 2 Attempt to set ramp start pressure while ramp time = 0 Set ramp time to a minimum of
5 minutes to enable the ability
to set ramp start pressure.
Fail 3 Attempt to save treatment pressure while device is locked Treatment pressure changes
can only be made by a trained
healthcare provider while the
device is unlocked.
Data is no longer getting logged. Therapy will continue.
Internal battery needs replace-
ment, so the device has stopped
logging data. Call Breas to arrange
for the battery to be replaced.
Until then therapy will continue
to be provided.
FAULT
“FAULT” is displayed if one of several conditions has occurred that require your attention. See Fault
Auto Stop Feature
The Z2 is equipped with an Auto Stop Feature. This will stop the treatment
automatically after the mask has been removed. To restart the treatment, place the
mask back on your face and press the Start/Stop Button.
NOTE: The Auto Stop Feature will stop the therapy if a large air leak is
detected between the Z2 outlet and the mask. This may also happen at
times when the mask is not being worn properly. This common condition
should be resolved once all connections are secure, the mask is properly
worn, and the Start/Stop Button has been pushed.
Choosing Between Z-Breathe
®
settings
The Z-Breathe setting of 1-3 is indicated by the number following
the CPAP designation on the LCD screen. For example CPAP-2
means the CPAP mode with a Z-Breathe setting of 2 (Figure 9) To
set the Z-Breathe setting, press and hold down the Up Arrow Button
and Down Arrow Button simultaneously while in the Standby
mode (pressure of “0.0” indicated on the display). Once you see the
Function Mode indicator flashing on the LCD screen, you can select
Current
Treatment
Pressure
Start/Stop
Button
Figure 8
Z-Breathe Setting
Mode
Conditions (page 16) for explanations of the FAULT codes.
Starting and Stopping Treatment
1. Press the Start/Stop Button on the Z2 to initiate
treatment using the pre-programmed prescription
setting. The Treatment Pressure Display will show
the actual pressure being delivered at all times. If the
Ramp Mode has been programmed, the ramp start
pressure will be displayed upon pressing the Start/
Stop Button and the indicated pressure will rise as
the Z2 ramps up to prescribed treatment pressure.
If the incorrect pressure is displayed, contact your
health care provider before commencing CPAP
therapy. (Figure 8)
2. Press the Start/Stop Button a second time to stop
treatment.
the desired Z-Breathe setting using the Up Arrow Button and Down Arrow Button. After you have
made your selection, press and hold the Start/Stop Button to save it.
Your selected setting for Z-Breathe will be retained in the memory of your Z2 unit after it is turned
off. The currently selected Z-Breathe setting will be displayed when the Z2 is delivering treatment
pressure.
Z-Breathe is a proprietary algorithm engineered in the Z2 to smooth out the breathing cycle
while enjoying the benefits of CPAP treatment. Typically users experience pressure swings while
breathing on a CPAP device. Pressure swings occur as a spike in pressure during exhalation and
a drop in pressure during inhalation. Z-Breathe is designed to minimize the impact of spikes and
drops while keeping the pressure constant, thereby delivering more comfortable therapy.
Pressure swings can vary between users due to lung capacity and other factors. For this reason we
have created 3 levels of Z-Breathe to accommodate individual users’ preferences:
— 1 offers mild pressure swing relief
— 2 is the Default Setting and offers moderate pressure swing relief
— 3 is the most aggressive setting for pressure swing relief
Setting the Auto Stop Feature
If you prefer to stop the Z2 using the Start / Stop Button, you can disable the Auto Stop Feature.
To do this press and hold the Up Arrow Button and Down Arrow Button at the same time until
the Z-Breathe setting flashes. Release the buttons. Then press and hold the Up Arrow Button and
Down Arrow Button at the same time again until flashes. Release both buttons and
press the Down Arrow Button to change to . Press and hold the Start / Stop Button to
save the setting. To enable the feature, repeat the steps above, but press the Up Arrow Button to
change to .
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