ALARM ICON
WARNING
INDICATES
CAUSE
ACTION
GENERAL FAULT
and
– – IN FLOW
(FLASHING)
Malfunction of
sensor or control
system
Internal
component failure
Check gas supply. If not
corrected, disconnect patient.
Unplug AC power, press and
hold Run/Standby button for
3 seconds to clear the alarm,
send for service.
GENERAL FAULT
and
– – IN
0
2
(FLASHING)
O₂ sensor fault
Depleted or
defective O₂ sensor
Unplug AC power, press and
hold Run/Standby button for
3 seconds to clear the alarm.
Replace O
2
sensor. Restart unit.
GENERAL FAULT
and
– – IN TEMP
(FLASHING)
Temperature
out of range.
Overheating or
temperature sensor
malfunction.
Cannot be corrected by user:
disconnect patient. Unplug AC
power, press and hold Run/
Standby button for 3 seconds
to clear the alarm, send for
service.
WATER OUT
No water in dispos-
able
water path. Gas flow
continues without
heating or water
circulation.
Sterile water empty,
or obstructed inlet
tube.
Replace water bag or straighten
inlet tube. Restart unit. If alarm
persists, disconnect patient
from therapy.
DISPOSABLE
WATER PATH
(FLASHING)
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, place unit into
Standby, remove and replace
disposable patient circuit to
reset detector. Restart unit.
BATTERY
CHARGING
(STEADY)
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.
BATTERY
(FLASHING)
The unit is running
in BATTERY mode.
Gas flow and
blending continues
without heat or
water circulation.
AC power is
disconnected
Reconnect AC power.
BLOCKED TUBE
(FLASHING)
High back pressure
Obstructed or
kinked cannula/
delivery tube, incor-
rect cannula for
flow rate or DPC
improperly seated
Clear obstruction, check
cannula type, re-install DPC
GENERAL FAULT ALARMS: Failures in the control or measurement systems will cause a General Fault alarm
indicated by this icon accompanied by the Temp display showing numbers between 50 & 84 (error codes) and
dashes in O₂ and Flow displays. When an error code is displayed, gas delivery is 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 an approved service facility.
CARTRIDGE
CANNULA TYPE
OPERATIONAL FLOW RATES
High Flow
Adult, Pediatric/Adult Small, Pediatric Small*
5-40 liters per minute (L/min)
Low Flow
Premature, Neonatal, Infant, Intermediate Infant,
Solo, Pediatric Small*
1-8 liters per minute (L/min)
ALARM ICON
WARNING
INDICATES
CAUSE
ACTION
CARTRIDGE
FAULT
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. Place
unit into Standby. 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.
CARTRIDGE
TYPE
Indicates type of cartridge installed (low or high flow). Not an alarm.
GAS SUPPLY
(FLASHING)
GAS SUPPLY
(CONTINUOUS
AND FLOW
RATE NUMERIC
DISPLAY
FLASHES)
Gas supply pressure
outside 4-85 psi
(28-586 kPa) range.
Unit will not operate.
Gas supply is
disconnected 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
NUMERIC
DISPLAY
FLASHES
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.
INDICATIONS, WARNINGS AND CAUTIONS
Primary Indications:
The Precision Flow® Heliox is intended to add warm moisture to breathing gases from an external source for
administration to a neonate/infant, pediatric and adult patients in the
hospital, subacute institutions, and home settings. It adds heat and moisture to a blended medical heliox (79%
helium, 21% oxygen)/ oxygen mixture and assures the integrity of the precise heliox/oxygen mixture via an
integral oxygen analyzer. The flow rates may be from 1 to 40 liters per minute via nasal cannula.
Contraindications: General:
• Not appropriate for patients who are not spontaneously breathing, are unable to protect their airway or have anatomic or
injury induced blockage of the nasal pathway to the nasopharyngeal space
• Not for treating OSA and snoring
• The Precision Flow® Heliox is not for field transport
• The Precision Flow® Heliox is MRI unsafe. Do not use it in an MR environment.
Additional patient monitoring including pulse oximetry is necessary if the Precision Flow® Heliox is used to give
supplementary oxygen.
LO HI
Precision Flow® Heliox Packaging contains:
Precision Flow® Heliox Unit
Instructions For Use on USB
Quick Reference Guide
Power Cord
Delivery Tube clip
O2 Sensor cell
US ONLY - Heliox and Oxygen Hoses
