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prOVIDEr’S NOTES - Cleaning and Disinfection when There is a patient Change
When medical devices have already been used with a patient, contamination with human pathogenic germs should be assumed (unless there is evidence to the contrary), and
the next patient, user or third party should be protected by appropriate handling and preparation.
Therefore, when there is a patient change, people must be protected during the transport and handling of the device, and the device must be fully processed, i.e., cleaned and
disinfected, by suitably trained personnel before reuse to protect the next patient. The complete processing may only be done by the manufacturer or by a qualified DeVilbiss
provider/service technician.
NOTE–If the following described complete processing of the concentrator by a qualified DeVilbiss provider/technician is not possible, the device must not be used by another
patient!
DeVilbiss Healthcare recommends that at least the following procedures be carried out by the manufacturer or a qualified third party between uses by different patients.
NOTE–If preventive maintenance is due at this time, these procedures should be carried out in addition to the servicing procedures.
1. Dispose of all accessory components that are not suitable for reuse, i.e., particularly the oxygen tubing, the nasal cannula/mask, oxygen outlet connector and humidifier
bottle.
2. CAUTION–the concentrator must be disconnected from the power supply for this step: Open the concentrator and remove all dust deposits inside the cabinet with
an appropriate vacuum cleaner.
3. Clean and disinfect all parts of the cabinet inside and outside and the power cord with a suitable disinfecting agent, e.g., Microbac Forte or Terralin®.
4. Check the cord, the plug on the back of the device, the power switch, the fuse holder and the indicator light for possible damage.
5. Replace all damaged or worn components.
6. Replace the cabinet air filter on the back of the device.
7. Check the oxygen concentration. If the device is within specifications, the extended life intake bacteria filter does not need to be replaced between patients. If the
concentration is not within specifications, the provider should refer to the service manual section on Troubleshooting.
TrOuBLEShOOTINg
The following troubleshooting chart will help you analyze and correct minor oxygen concentrator malfunctions. If the suggested procedures do not help, switch to your reserve
oxygen system and call your DeVilbiss homecare provider. Do not attempt any other maintenance.
wArNINg
To avoid electric shock hazard, do not remove the cabinet. The cabinet should only be removed by a qualified DeVilbiss homecare technician.
minor Troubleshooting Chart
SyMpTOM
pOSSIblE CAUSE
REMEDy
A. Unit does not operate. Power light is off when the
power switch is “On.” Audible alert is pulsing and
Service Required light is flashing.
1. Power cord not properly inserted
into wall outlet.
1. Check power cord connection at the wall outlet. On 230 volt units, also
check the mains connection on the back of the unit.
2. No power at wall outlet.
2. Check your home circuit breaker and reset if necessary. Use a different
wall outlet if the situation occurs again.
3. Oxygen concentrator circuit
breaker activated.
3. Press the concentrator circuit breaker reset button located below the
power switch. Use a different wall outlet if the situation occurs again.
If the above remedies do not work, contact your DeVilbiss provider.
B. Unit operates, the Power light is on when the
power switch is “On.” Red Service Required light
is illuminated. Audible alert may be sounding.
1. Air filter is blocked.
1. Check the air filter. If the filter is dirty, wash it following the cleaning
instructions on page 5.
2. Exhaust is blocked.
2. Check the exhaust area; make sure there is nothing restricting the unit
exhaust.
3. Blocked or defective cannula, face
mask, or oxygen tubing.
3. Detach cannula or face mask. If proper flow is restored, clean or replace
if necessary. Disconnect the oxygen tubing at the oxygen outlet. If
proper flow is restored, check oxygen tubing for obstructions or kinks.
Replace if necessary.
4. Blocked or defective humidifier
bottle.
4. Detach the humidifier from the oxygen outlet. If proper flow is obtained,
clean or replace humidifier.
5. Flow meter set too low.
5. Set flow meter to prescribed flow rate.
If the above remedies do not work, contact your DeVilbiss provider.
C. Unit operates, the power light is on when power
switch is “on,” audible low-frequency vibration
sound is detected.
1. Turn your unit “Off.” Switch to your reserve oxygen system, and contact
your DeVilbiss provider immediately.
D Both the green Normal Oxygen and the yellow
Low Oxygen lights are either on or off.
1. OSD malfunction.
1. Contact your DeVilbiss provider.
E. Yellow Low Oxygen light is on or the yellow Low
Oxygen light is on and the intermittent audible
signal is sounding.
1. Flow meter is not properly set.
1. Ensure the flow meter is properly set to the prescribed number.
2. Air filter is blocked.
2. Check the air filter. If the filter is dirty, wash it following the cleaning
instructions on page 5.
3. Exhaust is blocked.
3. Check the exhaust area; make sure there is nothing restricting the unit
exhaust.
If the above remedies do not work, contact your DeVilbiss provider.
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