Alert System - DeVilbiss iGo 306 SERIES Service Manual

MAINTENANCE

Alert System

The iGo alert system is comprised of both visible and audible alerts
which signal a malfunction in operation. The alerts are energized
by an on-board power supply without the need for a battery.
Oxygen Purity:
The DeVilbiss iGo is equipped with a DeVilbiss oxygen sensing
device (OSD ). The device continuously monitors the oxygen purity
®
of the gas delivered to the oxygen outlet port. Depending on the
purity of the gas sensed, the alert activates as follows:
• 84% or greater Oxygen purity - Green Normal Oxygen light
• 76% to 83% Oxygen purity - Yellow Low Oxygen light
• 75% or less Oxygen purity - Flashing Red Service Required
light and audible beeping; unit will continue to run
Electronic Diagnostics:
If a problem is detected with the electronics, the Red Service
Required light illuminates continuously with an intermittent audible
alert and the unit shuts down.
Low Flow:
In Continuous Flow mode if the flow rate drops below 0.3 LPM for
approximately 16 seconds or more, the Red Service Required light
and the Flow Indicator light toggle and an audible alert sounds
intermittently.
High Temperatures:
1. If the internal gas temperature exceeds 55°C, the audible alert
sounds intermittently while the Red Service Required light
illuminates continuously and the unit shuts down.
2. If the temperature sensor in the motor circuitry reaches
approximately 70°C during operation, the compressor shuts
down followed by the Red Service Required light illuminating
continuously and the audible alert sounding intermittently.
Power Fail:
1. With a charged battery installed – If the unit is running and
external power is lost, the unit will automatically utilize the
battery power. The only indications will be a short beep of the
audible alert and the external power LED will turn off.
2. Battery not installed or discharged battery – If the unit is
running and external power is lost, the unit will stop operating.
If the power is lost for more than 10 seconds then every 3
seconds the External Power light will illuminate while sounding
the audible alert. This alert will last for 15 minutes or until the
ON/OFF button is pressed.
3. While running on battery only – If the battery becomes fully
discharged or is removed from the unit, the unit will alert the
same as in #2.
NOTE–The Power Fail alert can be stopped by pressing the ON/
OFF button. This will also prevent the unit from automatically
starting with the return of power to the unit.
Power Resumed:
If power returns while the unit is alerting for a power fail or after the
15 minutes of Power Fail alert, the unit will begin operating again
at the same settings prior to the power fail.
LT-2044
M A I N T E N A N C E
No Breath Detected:
In PulseDose mode if no breath is detected for 30 seconds while
the unit is ON, the iGo sounds an audible alert every 3 seconds for
one minute and illuminates the Yellow No Breath Detected light
intermittently. If no breath is detected during the alert period, the
unit automatically switches to continuous flow mode, illuminates the
Continuous Flow light continuously and turns OFF the Yellow No
Breath Detected light.
Battery Status:
• A series of six lights display the battery capacity: All 6 lights
illuminate green when fully charged. As battery becomes
depleted, the top lights will go out. When battery reaches its
lowest operating level, the lowest light will turn yellow and one
short audible alert will sound.
• Each green light indicates approximately 45 minutes of
operation at 2 LPM in PulseDose mode.
• The yellow light with a single audible alert indicates
approximately 10% of battery capacity remains.
• An External Power light and an audible alert every 3 seconds
indicates a depleted battery. See Power Fail alert.
• The lowest battery status light flashing yellow indicates a
battery issue:
•
•
• The lights cycle when battery is being charged.
Periodic Provider Maintenance
Summary
3 years: Inspect intake silencer/filter—replace as needed
6 years: Inspect final bacteria filter—replace as needed
Full Details
Every DeVilbiss Oxygen Concentrator is tested at the factory. To
ensure continued trouble-free performance, perform the following
preventative maintenance during periodic oxygen patient visits.
Failure to properly maintain the unit will void the warranty.
NOTE–The following schedule is based on an expected usage of
5,000 hours per year and a normal, clean operating environment.
The homecare provider should adjust the schedule based on the
specific operating environment.
1. Check the oxygen concentration with an oxygen analyzer
every 3 years.
a.
b.
6
If the yellow light flashes for less than 10 minutes, the
battery was overly discharged and has gained sufficient
charge to regain normal operation.
If the yellow light flashes for more than 10 minutes, the
battery is malfunctioning.
Check oxygen concentration.
Calibrate the oxygen analyzer, using the manufacturer's
procedure, prior to checking the oxygen concentration.
NOTE–Changes in temperature, altitude, or humidity may
affect the analyzer's oxygen concentration reading. The
analyzer should be calibrated in conditions similar to the
location of the concentrator.
Set the flow to 3 LPM @ Continuous Flow mode and run
the concentrator for a minimum of 20 minutes before
checking the oxygen concentration.