ALARM ICON
INDICATES
CAUSE
ACTION
Malfunction of sensor or
control system
Internal component
failure
Cannot be corrected by user:
disconnect patient. Shut off unit,
send for service.
O₂ sensor fault
Depleted or defective
O₂ sensor
Reset by shutting off unit. Replace
O₂ sensor. Restart unit
High back pressure
Obstructed or kinked
cannula/delivery tube,
incorrect cannula for
flow rate or DPC
improperly seated
Clear obstruction, check cannula
type, re-install DPC
No water in disposable
water path. Gas flow
continues without heat-
ing or water circulation.
Sterile water empty,
or obstructed inlet
tube.
Disconnect patient. Replace water
bag or straighten inlet tube.
Restart unit.
Disposable water path
faulty or not detected.
Unit will not run.
Disposable water path
defective, not properly
seated or not installed.
If disposable water path is
present, remove and replace to
reset detector.
The internal battery backup is not fully charged. The unit would not run on battery for
the full rated time in the event of a power failure. No action is necessary.
The unit is running in
BATTERY mode. Gas flow
and blending continues
without heat or water
circulation.
AC power is
disconnected
Reconnect AC power.
GENERAL FAULT ALARMS:
Failures in the control or measurement systems for temperature, gas flow, and oxygen
percentage will cause a General Fault alarm indicated by this icon. Unit will continue gas delivery in a fault condition
until placed in Standby. With the exception of O
₂
sensor replacement, the unit must be repaired by an approved
service facility. General Fault alarms cannot be silenced with the mute button. To reset, first disconnect the unit from
AC power and then press the Run/Standby Button.
ALARM ICON
INDICATES
CAUSE
ACTION
Cartridge and/or
DPC not
detected. Unit will
not run.
RUN mode: faulty
sensor or cartridge
not detected.
Disconnect patient. Remove disposable
patient circuit. Check cartridge
installation. Check sensor windows
are clean.
Gas bubbles in
water circulation.
Unit continues to
operate.
Excessive gas
diffusion through
cartridge fibers.
Disconnect
patient. Shut off unit. Replace disposable
patient circuit including
water path, cartridge & delivery tube.
Cartridge
and/or DPC not
detected.
STANDBY mode:
missing cartridge.
Remove disposable patient circuit.
Check cartridge installation.
Indicates type of cartridge installed (low or high flow). Not an alarm.
Gas supply pressure
outside 4-85 psi (28-
586 kPa) range. Unit
will not operate.
Gas supply is discon-
nected or exhausted.
Check gas supply and correct as
necessary.
Selected flow can
not be provided
from current gas
supply.
Inlet gas pressure too
low for selected flow
rate.
Increase gas pressure or decrease
flow setting.
Temperature
out of range.
Overheating or
temperature sensor
malfunction.
Cannot be corrected by user: disconnect
patient. Shut off unit and send for service.
Temperature 2° >
set point
User enters set point
much lower than pre-
vious temperature.
Silence alarm and wait for
temperature to drop.
Temperature 2° <
set point
Very low water tem-
perature after bag
replacement.
Silence alarm and wait for
temperature to rise.
GENERAL FAULT
(FLASHING)
GENERAL FAULT
(FLASHING)
DISPLAYS DASHES (
- -
)
BLOCKED TUBE
(FLASHING)
WATER OUT
(FLASHING)
DISPOSABLE WATER
PATH
(FLASHING)
BATTERY CHARGING
(FLASHING)
BATTERY
(FLASHING)
CARTRIDGE FAULT
CARTRIDGE TYPE
LO
HI
GAS SUPPLY
(FLASHING)
GAS SUPPLY
(CONTINUOUS AND FLOW
RATE NUMERIC DISPLAY
FLASHES)
GENERAL FAULT
TEMPERATURE DISPLAY
SHOWS DASHES (
- -
)
FLASHING
TEMPERATURE NUMERIC
DISPLAY FLASHES
CARTRIDGE
CANNULA TYPE
OPERATIONAL FLOW RATES
High Flow
Adult, Pediatric/Adult Small, Pediatric Small*
5-40 liters per minute (lpm)
Low Flow
Premature, Neonatal, Infant, Intermediate
Infant, Solo, Pediatric Small*
1-8 liters per minute (lpm)
CANNULA FLOW RATES
% O
₂
*Pediatric Small cannula is intended to deliver flow rates of 1-20 lpm
