Service Manual
Integra E-Z Oxygen Concentrators
Chart SeQual Technologies Inc. Page 16 of 34 P/N 2917
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During System Malfunction condition the Green and Yellow lights may be On or Off.
5.1.1 Flashing RED LED, Steady alarm sounding.
5.1.1.1.Power Interruption External to Unit - Current from wall outlet interrupted. Push the On/Off
button to stop alarm. Check for open household fuse or actuated household circuit breaker.
Restore power.
5.1.1.2.Power Interruption Internal to Unit - Thermal switch activated. Push the On/Off button to stop
alarm. Check for adequate clearance (refer to the Operation and Set-up section).
5.1.1.3.Power Interruption Internal to Unit – Compressor Malfunction (See Section 5.5 or 5.9 for
compressor troubleshooting).
5.1.1.4.Power Sags and Surges – Simulating a circuit breaker popped due to a high or low current.
Correct the source of the power problem. Push the On/Off button to stop alarm (the unit resets
itself if the source of the inconsistent power is resolved). Wait for at least 20 seconds and push
Off/On button to restart the Integra E-Z.
5.1.1.5.Oxygen flow rate being measure and controlled by the Integra E-Z doesn’t agree with flow set
on the front panel by more or less than 30% of target flow rate. If alarm persists, check for
kinked or blocked tubing inside or outside the unit, or for leaks between the flow meter and the
control valve. For further investigation check to see if the flow control valve is stuck in the
open or closed position, or doesn’t adjust the flow.
5.1.2. Solid YELLOW LED, No alarm
5.1.2.1.The concentrator has detected a stuck button. The button determined to be stuck will not
function. To locate which button is stuck push the buttons one at a time and see which one does
not react. If the On/Off button is stuck unplug the power cord from the wall to turn the unit off.
5.1.3. YELLOW and GREEN LED Illuminated Only, No alarm.
5.1.3.1.The concentrator is indicating that the 9V Battery has a low voltage level. This is signaling the
technician or patient that the Battery Level is at 2 Bars and the battery needs to be replaced.
NOTE:
This Alarm Indicator is shipped from the factory as “D” Disabled. The
provider may chose to turn this feature on as described in the Service
Mode Section 2.6.3, and if this feature is disabled and the battery is
drained the unit will not be able to alarm in the event of a power failure.
5.1.4. Flashing YELLOW LED, No alarm.
5.1.4.1.Oxygen flow rate being measured and controlled by the Integra E-Z doesn’t agree with flow set
on the front panel by more than 10%.. If alarm persists, check for kinked or blocked tubing
inside or outside the unit, or for leaks between the flow meter and the control valve. For further
investigation check to see if the flow control valve is stuck in the open or closed position, or
doesn’t adjust the flow.
5.1.5. OM Models - YELLOW LED illuminated. Concentration is below 85%
5.1.5.1.Check flow rate setting - flow set too high will reduce concentration. Allow 5 minutes for flow
to stabilize at lower setting, green LED should illuminate.
5.1.5.2.Filter clog- check cabinet inlet filter and compressor inlet filter (refer to Routine Maintenance
section).
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