CAIRE FreeStyle Comfort Technical Manual page 16

FreeStyle Comfort
Test Mode Operation and O2
Concentration Check
Entering Test Mode
With the unit turned on, press the following
sequence of buttons "+ + - - + - + -". For the unit
to recognize the following sequence, it has to be
entered within a 5 second period. If the sequence
of buttons is entered correctly, the unit will alarm
and the screen will change, having a red border
around the screen, indicating the unit is now in
test mode. The unit will begin auto-pulsing,
enabling O2 concentration testing.
To exit test mode, turn off the unit or re-enter the
test mode sequence. Be sure to exit test mode
before returning the unit to patient use.
Hour Meter
The hour meter will be useful for tracking the
usage of the unit and plan the provider
maintenance:
1. To view the total operating hours, turn
the unit on and enter Test Mode per the
instruction from the previous section.
2. Within the Test Mode, the five-digit
number shown at the bottom of the screen
(next to the hourglass symbol) is the
operating hours of the unit
Alarm Code in Test Mode
Reviewing the Alarm Code may be useful during
the troubleshooting. The unit will enter an auto-
pulse mode for testing such as oxygen level:
1. To check the Alarm Code, turn the unit
on and enter the Test Mode per instruct
from the previous section.
2. On the top of the screen, the four-digit
number indicates the operating status of
the unit. Any combination beside 0000
will indicate the specific issue of the unit.
Refer to TROUBLESHOOTING IN
TEST MODE for details.
16
O2 CONCENTRATION TEST
Before reviewing the Troubleshooting Chart, the
following steps may be useful to identify any
malfunctions:
1. Make sure all filters are clean.
2. Enter the Test Mode per instruct from the
previous section. After ten minutes of
running in test mode, measure the oxygen
concentration. The acceptable O2 range is
90% oxygen +5.5/-3%.
Note: The pulse setting can be increased
or decreased as normal operation while in
test mode.
3. To exit test mode, turn off the unit or re-
enter the test mode sequence. Be sure to
exit test mode before returning the unit to
patient use.
VERIFY AC AND DC OPERATION
The FreeStyle Comfort comes with an AC and
DC power supply to keep your concentrator
powered wherever you go.
The AC power supply includes the following:
a. AC Power brick that operates between
100-240 volts, 50-60Hz.
b. AC Power cord to connect to the power
brick and corresponding AC outlet.
The DC power supply consists of a cord that
plugs directly into the unit and the DC outlet.