3001002 Rev. P
Page 23
Section 12
Alarms
Alarm Table
GENERAL FAULT ALARMS:
Are failures in the control or measurement systems. Depending
on the cause of the failure, gas delivery may or may not be stopped. The user needs to monitor the
treatment and respond to general fault alarms. 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. With
the exception of O2 sensor replacement, the unit must be repaired by trained personnel.
Alarm icon
Audio
Signal
Indicates
Cause
Action
Cartridge fault
Medium
Priority
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 cartrridge installation.
Check sensor windows are
clean.
Low
Priority
Gas bub-
bles in water
circulation. Unit
continues to
operate.
Excessive
gas diffusion
through car-
tridge fibers.
Disconnect patient. Shut off
unit. Replace disposable pa-
tient circuit including water
path, cartridge & delivery
tube.
None
Cartridge and/
or DPC not
detected.
STANDBY
mode: missing
cartridge.
Remove disposable patient
circuit. Check cartridge
installation.
Cartridge type
None
Indicates type of cartridge installed (low or high flow). Not an
alarm.
Gas supply (flashing)
Gas supply (con-
tinuous and flow rate
numeric display
flashes)
Medium
Priority
Gas sup-
ply pressure
outside 4-85 psi
(28-586 kPa)
range. Unit will
not operate.
Gas supply is
disconnected
or exhausted.
Check gas supply and cor-
rect as necessary.
Medium
Priority
Selected flow
can not be
provided from
current gas
supply.
Inlet gas pres-
sure too low
for selected
flow rate.
Increase gas pressure or
decrease flow setting.
Temperature display
shows dashes
(- - ) flashing,
& General
Fault icon
Medium
Priority
Can-
not be
muted
Temperature
out of range.
Overheating
or tempera-
ture sensor
malfunction.
Cannot be corrected by
user: disconnect patient.
Shut off unit and send for
service.
Temperature numeric
display flashes
None
Temperature 2°
> set point
User enters
set point
much lower
than previous
temperature.
Silence alarm and wait for
temperature to drop.
Temperature 2°
< set point
Very low water
temperature
after bag
replacement.
Silence alarm and wait for
temperature to rise.
