Drive DeVilbiss iGo 2 User manual

Assembled in USA
Drive Devilbiss iGo®2Portable oxyGen ConCentrator
serviCe Manual
MODEL 125D
MODEL 125K
MODEL 125A
CAUTION
Federal (U.S.A.) law restricts this device to sale by or on the order of a physician.
DANGER-NO SMOKING

2
LT-2334
TABLE OF CONTENTS
GENERAL INFORMATION
Symbol Definitions ................................... 3
Important Safeguards ................................. 4
Operating Principle ................................... 6
Technical Description ................................. 6
Healthcare Provider Instructions......................... 6
IMPORTANT PARTS ................................... 7
SET UP AND OPERATING INSTRUCTIONS ................ 7
POWER OPTIONS ..................................... 8
BATTERY OPERATION AND CHARGING
Initial Battery Charge ................................. 9
Battery Charging ..................................... 9
Typical Battery Recharge Time.......................... 9
Battery Charge Level ................................ 10
Discharging Battery Bar Table (unplugged) ............... 10
TRAVELING WITH THE IGO2 POC....................... 10
MAINTENANCE .......................................11
Alarm System Function Check ..........................11
Expected Service Life .................................11
Information Mode ....................................11
Entering Information Mode ...........................11
Exiting Information Mode ............................11
iGo2 POC Care and Cleaning ......................... 12
Exterior Cover & Battery ............................ 12
Carrying Case .................................... 12
Power Supply, AC Power Cord, DC Power Cord ......... 12
Cannula and Tubing ............................... 12
Cleaning & Disinfection When There is a Change of Patient 12
Return and Disposal ................................. 13
Disposal of Lithium-ion Batteries ..................... 13
TROUBLESHOOTING & ALARM SYSTEM
Troubleshooting .................................... 14
Overview of Alarms.................................. 15
COMPONENT DESCRIPTION AND FUNCTION
Accumulator Manifold & Tank .......................... 16
Battery............................................ 16
Compressor........................................ 16
Cooling Fan........................................ 16
Dispense Valve ..................................... 16
Final Bacteria Filter.................................. 16
Intake Filter (compressor silencer) ...................... 16
Molecular Sieve Beds ................................ 16
Printed Circuit Board................................. 16
Purge Valve........................................ 16
Switching Manifold .................................. 16
SERVICING AND COMPONENT REPLACEMENT
Cover............................................. 17
Control Panel Label ................................. 17
Oxygen Outlet Port and Final Bacteria Filter .............. 18
Sieve Beds ........................................ 18
Testing Oxygen Concentration ......................... 19
Testing Inspiratory Trigger Sensitivity .................... 19
FIGURES, DIAGRAMS AND PARTS LIST
125 Portable Oxygen Concentrator Views ................ 20
Parts and Accessories ............................... 22
Pneumatic Diagram ................................. 23
ORDERING INFORMATION AND RETURN
Ordering Information ................................. 24
Return of Units ..................................... 24
SPECIFICATIONS..................................... 25
ELECTROMAGNETIC COMPATIBILITY INFORMATION ...... 26
Electromagnetic Compatibility Compliance Levels .......... 27

LT-2334
3
GENERAL INFORMATION
SYMBOL DEFINITIONS
Danger - No smoking near patient or
device.
This symbol has a red circle and
diagonal bar on the product label.
Power Button Direct Current (DC
Power) Alarm Silenced
It is mandatory to read and understand
the operating instructions prior to use.
This symbol has a blue background
on the product label.
Increase Prescription
Setting Button
Class II electrical
protection – double
insulated C US
TUV Rheinland
Do not use near heat or open ames.
This symbol has a red circle and
diagonal bar on the product label.
Decrease Prescription
Setting Button Type BF applied part Manufacturer
Do Not Disassemble
This symbol has a red circle and
diagonal bar on the product label.
Battery Status Indicator
Symbol Catalog Number European
Representative
Use no Oil, Grease or Lubricants
This symbol has a red circle and
diagonal bar on the product label.
Normal Oxygen (Green) Serial Number
0044
European Rep CE Mark
RTCA / DO-160G Section 21 Category M
and Section 20 Category T - The
manufacturer of this POC has determined
this device conforms to all applicable FAA
acceptance criteria for POC carriage and
use on board aircraft.
Text shown with this symbol is red on
the product label.
Low Oxygen (Yellow) No MR (MR Unsafe) Unsafe for Magnetic Resonance
Environment
General Warning
This symbol is used throughout this
manual to indicate hazardous
situations to avoid.
Service Required (Red) Federal (U.S.A.) law restricts this device to sale by or on
the order of a physician
Important Information
This symbol is used throughout this
manual to indicate important
information you should know.
IP22 IP22 Ingress Protection - Protected against nger access to hazardous parts; protected against
vertically falling water drops when enclosure is tilted up to 15°
Note and Information Symbol
This symbol is used throughout this
manual to indicate notes, useful tips,
recommendations and information.
This device contains electrical and/or electronic equipment that must be recycled per EU
Directive 2012/19/EU- Waste Electrical and Electronic Equipment (WEEE)
Battery Pack Markings
Attention, Consult Instruction Guide UL Recognized for Canadian and
US market
Dispose of this product according to local
regulations.
Refer to Operating Instructions Recycling Symbol Taiwan
For Canada & USA: Please call 1-800-822-
8837 for information on how to recycle this
battery
Mark of conformity to applicable
European Directives UN Transportation Test China RoHS
Regulatory Compliance Mark of
Australia and New Zealand.
Li-ion
Recycling Symbol Regulatory Compliance Mark of Japan
Battery Charge Status Gauge

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LT-2334
GENERAL INFORMATION
IMPORTANT SAFEGUARDS
Read this entire guide before using your Drive DeVilbiss iGo2 portable oxygen concentrator. Important safeguards are indicated throughout this guide; pay
special attention to all safety information. Imminently and potentially hazardous information is highlighted by these terms:
DANGER
Indicates an imminently hazardous situation which could result in death or serious injury to the user or operator if not avoided.
WARNING
Indicates a potentially hazardous situation which could result in death or serious injury to the user or operator if not avoided.
CAUTION
Indicates a potentially hazardous situation which could result in property damage, injury, or device damage if not avoided.
IMPORTANT
Indicates important information you should know.
NOTES
Indicates notes, useful tips, recommendations, and information.
Read All instructions before Using.
IMPORTANT
The device is to be used only on the instruction of a licensed physician. It is intended for the administration of supplemental oxygen to oxygen
patients > 10 kg as indicated by the physician. It is a transit-operable and body-worn device, and is not intended to be used with other medical
devices. The device is not intended for life support, nor does it provide any patient monitoring capabilities.
WARNING
• Electric Shock Hazard – Do not use while bathing.
• Electric Shock Hazard – Do not immerse this device into water or any other liquid.
• Electric Shock Hazard – Do not attempt to open or remove the cover; there are no user-serviceable internal components. If service is required,
contact your equipment provider for instructions on obtaining service. Opening or attempting to service your device will void the warranty.
DANGER
• DANGER-NO SMOKING
• Oxygen causes rapid burning. Smoking during oxygen therapy is dangerous and is likely to result in facial burns or death. Do not allow smoking
within the same room where the oxygen concentrator or any oxygen carrying accessories are located. Do not smoke while your oxygen
concentrator is operating, or when you are near a person utilizing oxygen therapy.
• If you intend to smoke, you must always turn the oxygen concentrator off, remove the cannula and leave the room where either the cannula or
mask or the oxygen concentrator is located. If unable to leave the room, you must wait 10 minutes after you have turned off the oxygen
concentrator before smoking.
• There is a risk of re associated with oxygen enrichment during oxygen therapy. Do not use the oxygen concentrator or accessories near sparks
or open ames.
• Open ames during oxygen therapy are dangerous and are likely to result in re or death. Do not allow open ames or hot, sparking objects
within 2 m (6.5 feet) of the oxygen concentrator, cannula, or any oxygen carrying accessories.
• Oxygen makes it easier for a re to start and spread. Do not leave the nasal cannula or mask on bed coverings or chair cushions if the oxygen
concentrator is turned on but not in use; the oxygen will make the materials ammable. Turn the oxygen concentrator off when not in use to
prevent oxygen enrichment.
• To prevent high concentrations of oxygen:
• Do not leave device running when not in use. Do not leave cannula unattended while unit is delivering oxygen. High concentrations of oxygen
can cause rapid burning.
• Keep the equipment in a well-ventilated area.
CAUTION
• Drive DeVilbiss recommends for optimal service life that the iGo2 Portable Oxygen Concentrator be operated for at least 30 minutes after it is
powered on. Shorter periods of operation, operating in extreme temperature/humidity conditions or in the presence of contaminates, and/or
handling and storage conditions outside those specied, may affect the long term reliable operation of the product.

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GENERAL INFORMATION
WARNING
• Position your unit near an electrical outlet at least 6 inches (16 cm) from walls, draperies, or any other objects that might prevent the proper ow
of air in and out of your device. The iGo2 concentrator should be located so as to avoid pollutants or fumes, and placed in a well-ventilated place
so that the air inlet and exhaust are not blocked. Do not cover unit with a blanket, towel, quilt, or other covering, as the unit may overheat.
• Do not lubricate ttings, connections, tubing, or other accessories of the oxygen concentrator to avoid the risk of re and burns. No lubricants are
recommended for use on this device.
• Use only water-based lotions or salves that are oxygen-compatible before and during oxygen therapy. Never use petroleum or oil-based lotions or
salves to avoid the risk of re and burns.
• The Drive DeVilbiss iGo2 portable oxygen concentrators are equipped with a re mitigating outlet tting that prevents propagation of re into the
unit.
• See instructions for use regarding re propagation prevention.
• Improper use of the power cord and plugs can cause a burn, re, or other electric shock hazards. Do not use the unit if the power cord is
damaged.
• Locate oxygen tubing and power supply cords to prevent tripping hazards and reduce the possibility of entanglement or strangulation.
• Use only spare parts recommended by the manufacturer to ensure proper function and to avoid the risk of re and burns.
• Equipment not suitable for use in the presence of a ammable anesthetic mixture with air or with oxygen or nitrous oxide.
• When device is used under extreme operating conditions, the temperature near the exhaust vents on the bottom of the unit may reach 57˚C
(134.6˚F). Keep bare skin away from this area.
• The following surface temperatures may exceed 41˚C (105.8˚F) under extreme conditions:
• External surface of POC............................ 52˚C (125.6˚F) • External power supply ...........................43˚C (109.4˚F)
• Exhaust gas at discharge port................... 53˚C (127.4˚F) • Battery Pack .........................................49˚C (120.2˚F)
Keep bare skin away from this area.
WARNING
• If you feel discomfort or are experiencing a medical emergency while undergoing oxygen therapy, seek medical assistance immediately to avoid
harm.
• Geriatric, pediatric or any other patient unable to communicate discomfort can require additional monitoring and/or a distributed alarm system to
convey the information about the discomfort and/or the medical urgency to the responsible caregiver to avoid harm.
• Use of this device at an altitude above 3000 meters (9843 feet) or above a temperature of 35˚C (95˚F) or greater than 93% relative humidity is
expected to adversely affect the ow rate and the percentage of oxygen and consequently the quality of the therapy. Refer to specications for
details regarding parameters tested.
• The oxygen delivery setting has to be determined for each patient individually with the conguration of the equipment to be used, including
accessories. It is very important to follow the prescription determined by your physician.
• Your delivery settings of the oxygen concentrator should be periodically reassessed for the effectiveness of therapy.
• To ensure you receive the therapeutic amount of oxygen delivery according to your medical condition, the iGo2 oxygen concentrator must:
• be used only after one or more settings have been individually determined or prescribed for you at your specic activity levels.
• be used with the specic combination of parts and accessories that are in line with the specication of the concentrator manufacturer and that
were used while your settings were determined.
• The settings of this iGo2 portable oxygen concentrator do not correspond with continuous ow oxygen device settings.
• The setting of other models or brands of oxygen therapy equipment do not correspond with the settings of this iGo2 portable oxygen
concentrator.
WARNING
• The proper placement and positioning of the prongs of the nasal cannula in the nose is critical to the amount of oxygen delivered to the
respiratory system of the patient.
• Some respiratory efforts of the patient might not trigger the conserving equipment.
• Wind or strong draughts can adversely affect accurate delivery of oxygen therapy.
• This device is not intended for use with a tracheotomised patient.
WARNING
• To avoid electric shock, do not remove the concentrator cover. The cover should only be removed by a qualied Drive DeVilbiss technician. Do
not apply liquid directly to the cover or utilize any petroleum-based solvents or cleaning agents.
• Before attempting any cleaning procedures, turn the unit “Off” and disconnect from AC or DC power.
• Do not service or clean this device while in use with a Patient.
• Use no lubricants, oils or grease.
• Use of harsh chemicals (including alcohol) is not recommended. If bactericidal cleaning is required, a non-alcohol based product should be used
to avoid inadvertent damage.

6
LT-2334
GENERAL INFORMATION
WARNING
• This device contains electrical and/or electronic equipment. Follow local governing ordinances and recycling plans regarding disposal of device
components.
MR Unsafe
• Do not bring the device or accessories into a Magnetic Resonance (MR) environment as it may cause unacceptable risk to the patient or damage
to the iGo2 or MR medical devices. The device and accessories have not been evaluated for safety in an MR environment.
• Do not use the device or accessories in an environment with electromagnetic equipment such as CT scanners, Diathermy, RFID and
electromagnetic security systems (metal detectors) as it may cause unacceptable risk to the patient or damage to the iGo2. Some
electromagnetic sources may not be apparent, if you notice any unexplained changes in the performance of this device, if it is making unusual or
harsh sounds, disconnect the power cord and discontinue use. Contact your home care provider.
• This device is suitable for use in home and healthcare environments except for near active HF SURGICAL EQUIPMENT and the RF shielded
room of an ME SYSTEM for magnetic resonance imaging, where the intensity of Electromagnetic DISTURBANCES is high.
• Use of this equipment adjacent to or stacked with other equipment should be avoided because it could result in improper operation. If such use is
necessary, this equipment and the other equipment should be observed to verify that they are operating normally.
• Use of accessories and cables other than those specied or provided by the manufacturer of this equipment could result in increased
electromagnetic emissions or decreased electromagnetic immunity of this equipment and result in improper operation.
• Portable RF communications equipment (including peripherals such as antenna cables and external antennas) should be used no closer than 30
cm (12 inches) to any part of the iGo2, including cables specied by the manufacturer. Otherwise, degradation of the performance of this
equipment could result.
WARNING
THE FOLLOWING BATTERY SAFETY WARNINGS MUST BE OBSERVED AT ALL TIMES:
• Do not drop, hit, crush, or otherwise abuse the battery as this may result in the exposure of the cell contents, which are corrosive.
• Do not subject battery to mechanical shock.
• In the event of a battery leaking, do not allow the liquid to come in contact with the skin or eyes. If contact has been made, wash the affected
area with copious amounts of water and seek medical advice.
• Do not expose the battery to re or extreme heat. Do not incinerate. Exposure of the battery to extreme heat may result in an explosion. Avoid
storage in direct sunlight.
• Do not expose the battery to water, rain or moisture of any type.
• Do not expose to water, re or excessive heat.
• Do not crush, disassemble, puncture or short circuit the connector terminals.
• Do not open, disassemble, or attempt to repair the battery; there are no user-serviceable parts inside.
• Do not short-circuit battery.
• Do not store batteries haphazardly in a box or drawer where they may short circuit each other or be short-circuited by other metal objects.
• Keep batteries out of the reach of children.
• Keep batteries clean and dry.
• Use only the battery in the application for which it was intended.
• Periodically inspect connection cords, connector tips and the power supply for damage or signs of wear. Discontinue use if damaged.
• Charge the battery before initial use.
• Recommended maximum time between charges = 1 year
• Recommendation: Store the battery below 25°C (77°F), low humidity, no dust and no corrosive gas atmosphere. Store fully charged if possible.
• This device contains electrical and/or electronic equipment. Follow local governing ordinances and recycling plans regarding disposal of device
components.
• The battery must be recycled or disposed of properly.
Operating Principle
The Oxygen Concentrator uses molecular sieve to remove the nitrogen from ambient air and allow oxygen to remain in the air delivered to the patient. The
device is a pulse only oxygen concentrator which only delivers oxygen when a patient breath is detected.
Technical Description
Pulse Only Pressure Vacuum Swing Adsorption (PVSA), oxygen concentrator based on molecular sieve technology. Beds are evacuated and drawn down by a
compressor to a vacuum level, which is dependent on setting. Ambient air is then pumped into the concentrator through a series of lters that remove dust and
other particulate. A valve directs air into one of two sieve beds. Nitrogen is adsorbed in the bed as the pressure increases while oxygen ows through, thereby
producing a highly enriched oxygen product. Air is processed in the second bed out of phase in the cycle with the rst bed. This allows processed oxygen to be
used in the cycle and to be delivered to the patient. Oxygen is provided to the patient only with pulse-dose basis.
Healthcare Provider Instructions
• The healthcare provider is responsible to determine oxygen delivery setting for each patient individually with the conguration of the equipment to be used,
including accessories.
• The healthcare provider is responsible to periodically reassess the delivery settings of the oxygen concentrator for the effectiveness of therapy.
• The healthcare provider is responsible to ensure the compatibility of the portable oxygen concentrator and all of the parts used to connect to the patient
before use.

LT-2334
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IMPORTANT PARTS
SmartDose Mode:
(2 digit field). The device has 4 oxygen settings of 1d
through 4d where the d indicates SmartDose is enabled
Control Panel Overview
Low Oxygen
Symbol (yellow)–
below an
acceptable
oxygen level
Service Required
Symbol (red) –
contact your
provider when
illuminated
Normal Oxygen
Symbol (green) –
acceptable
oxygen level
Power Button
Battery Status Indicator
Audible Alarm
Silenced symbol (illu-
minates when audible
alarm has been
silenced by pressing
the power button)
Prescription Setting
Standard Mode:
(1 digit field). The device has 5 oxygen
settings of 1 through 5.
Battery charge remaining
percentage (2-digit field) –
shows remaining charge as
percentage (99% max
shown)
Increase Prescription
Setting Button
Initial Startup Screen
NOTE– Press and hold either “+” or “-“ to
see battery charge remaining; display will
return to prescription setting in a few seconds.
Important Parts of Your Concentrator
Set Up and Operating Instructions
Refer to the instruction guide for set up and operating instructions.
Control
Panel
Oxygen
Outlet Port
Exhaust Vents
(both sides)
Battery/
Battery Bay
Power Input
USB Port
(not for
patient use)
Serial Number/
Rating Label
Battery
Battery Charge
Status Gauge
Charge
Status
Button
Battery
Connection
Terminals
Decrease Prescription
Setting Button
DC Power Cord
(Auto Adapter)
AC Power Cord
Power Supply
(AC/DC Adapter)
Drive DeVilbiss iGo2 Portable Oxygen Concentrator

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LT-2334
POWER OPTIONS
POWER OPTIONS
Your iGo2 POC can be used on the 3 following power sources:
1. Battery Power – Your device must always have a battery installed to
operate. The iGo2 POC will use battery power if no other power source
is present. However, if AC or DC power is connected, the device will
run on that power source thus conserving battery charge level. If the
other power source is disconnected, the device will automatically switch
to battery power. The device will operate for a minimum of 3.5 hours at
a setting of 2 at 20 BPM (breaths per minute) using a new fully charged
battery.
2. AC Power (for use at home or where standard AC power is available) –
Attach the universal AC Power Supply to the concentrator and an AC
power outlet using the AC Power Cord.
3. DC (car charger) Power.
a. START YOUR VEHICLE.
NOTE– DO NOT leave the iGo2 or Power Supply plugged into
the vehicle without the engine running or attempt to start the
vehicle while either is connected to the vehicle. This may drain the
vehicle’s battery.
b. Attach Power Supply to the device and to the vehicle accessory
power port using the DC power cord.
c. Secure the iGo2 POC and Power Supply in your vehicle and make
sure the air inlet and exhaust vents are not blocked.
NOTE– Battery will not charge if plugged into power source less than
13.8V but the device will function correctly.

LT-2334
9
BATTERY OPERATION AND CHARGING
Battery
To check the battery charge level percent, press and hold either the“+” or
“-“ button, and the percent of battery remaining display will be shown.
The display will revert back to prescription setting in a few seconds, but
the battery status indicator is always shown.
The iGo2 concentrator will operate for a minimum of 3.5 hours at a
setting of 2 at 20 BPM (breaths per minute) using a new fully charged
battery.
NOTE– The battery may have 75% of its initial capacity after 300
charge/discharge cycles; in this case, you can expect up to 2.5 hours of
runtime at a setting of 2 and 20 BPM.
Initial Battery Charge
Before using the device on battery power for the rst time, the battery
needs to be fully charged. Optional spare batteries purchased should
also be fully charged before rst use.
1. To charge iGo2 portable concentrator battery, simply attach the
power supply to the device and an AC or DC power source using
the appropriate power cord.
2. The battery status indicator blinks to show charge level while the
battery is charging, and stays on once battery is fully charged
(99%).
NOTE– If you purchased spare batteries for backup, insert into the
concentrator one at a time and charge as above.
Battery Charging
During charge, the battery status indicator blinks while the battery is
charging; it stays on solid when battery is not charging.
To charge iGo2 portable concentrator battery:
1. Using AC Power - Attach the power supply to the concentrator and
an AC power source using the appropriate power cord.
2. Using DC Power - Your iGo2 includes a DC Cord that allows the
concentrator to operate from DC accessory power port outlets such
as those found in motor vehicles.
a. START YOUR VEHICLE.
NOTE– DO NOT leave the iGo2 or Power Supply plugged
into the vehicle without the engine running or attempt to start
the vehicle while either is connected to the vehicle. This may
drain the vehicle’s battery.
b. Attach Power Supply to the concentrator and to the vehicle
accessory power port using the DC power cord.
c. Secure the iGo2 POC and Power Supply in your vehicle and
make sure the air inlet and exhaust vents are not blocked.
NOTE– Battery will not charge if plugged into power source less than
13.8V but the device will function correctly.
NOTE– A separate battery charging station is also available for
purchase.
Typical Battery Recharge Time
The typical time to recharge your battery from a fully discharged
condition is less than 5 hours dependent upon the setting.
NOTE– Battery will charge in less than 3 hours from fully discharged
state with device off and plugged into AC power; or less than 4 hours
when using DC power. While using the concentrator, charge time will be
less than 5 hours from fully discharged state using either AC or DC
power.
NOTE– Battery will not charge if plugged into power source less than
13.8V but the device will function correctly.

10
LT-2334
BATTERY CHARGING / TRAVEL
Battery Charge Level
Display (installed battery) Spare Battery (not installed)
To check the battery charge level percent, press and hold either the “+” or “-“
button, and the percent of battery remaining display will be shown. The display
will revert back to prescription setting in a few seconds, but the battery status
indicator is always shown.
To check the charge level on a spare battery, simply press the Charge
Status Button on the individual battery.
Flashing = 10% remaining
Audible Alert = 5% remaining
Device Shutdown = within 2 minutes of reporting 5% charge
remaining. Plug in device or change battery to continue use.
NOTE– Each segment of the battery charge status gauge indicates a percent
of the total charge capacity
Flashing = 10% remaining
NOTE– Each segment of the battery charge status gauge indicates 25%
of total charge capacity.
Discharging Battery Bar Table (unplugged)
Battery Charge Status Displayed Charge
Battery Bar Display
# of Bars Lit
90 - 100% 90 - 99 5 bars steady
70 - 89% 70 - 89 4 bars steady
50 - 69% 50 - 69 3 bars steady
30 - 49% 30 - 49 2 bars steady
11 - 29% 11 - 29 1 bar steady
6 - 10% 06 - 10 1 bar blinking at 1 Hz (slow ash)
1 - 5% 01 - 05
*Device will shutdown within 2 minutes
of reporting 5% charge remaining
1 bar blinking at 3.3 Hz (fast ash)
TRAVELING WITH THE IGO2 POC
Refer to the instruction guide for information and recommendations on traveling with the iGo2 POC.

LT-2334
11
MAINTENANCE
MAINTENANCE
There is no routine or scheduled maintenance required for the iGo2 POC.
Alarm System Function Check
The alarm system function is checked automatically each time the unit is turned on. Therefore there is no monitoring system or method required to check the
function of the alarm system. At power on, the audible alarm sounds for 1 second and all LCD (liquid crystal display) segments light for 3 seconds to verify that
all LCD segments are operating.
Expected Service Life
• Oxygen Concentrator - 5 years
• Carrying Case - 5 years
• Compressor - 3 years
• Sieve Beds - 1 year
• Battery - 1 year
Expected service life of the unit, and in particular the sieve beds and compressor, may vary based on the operating environment, storage, handling, and the
frequency and intensity of use.
There is no portion of the gas pathways through the concentrator that could be contaminated with body uids under normal or single fault.
The device patient connection may unintentionally become contaminated with expired gasses if a hose internal to the device, between the dispense valve and
patient outlet port, becomes disconnected. This would allow open ow from the patient to the device. A bacteria lter is used in the patient connection, and this
will prevent contamination of the system. The design of the concentrator allows removal of the patient connection for cleaning and/or replacement of the lter
INFORMATION MODE
Information mode allows you to view the Hour Meter and Serial Number.
Entering Information Mode
With the device plugged in and OFF:
- Press and hold all 3 buttons for 2 seconds until display shows Hour Meter.
Press Power button for 1 second and release for Serial Number.
Hr (Hour Meter)
Hr (Hour Meter) is displayed; it contains 5 digits shown across 3 segments. Display auto
scrolls through segments.
Sn (Serial Number)
Sn (Serial Number) is next item displayed; it contains 8 digits shown across 4
segments. Display auto scrolls through segments.
To Exit information Mode:
Press Power button for 2 seconds and release to exit Information Mode and turn off device.
Exiting Information Mode
NOTE– Information Mode times out after 2 minutes without user interaction.

12
LT-2334
MAINTENANCE
IGO2 POC CARE AND CLEANING
WARNING
To avoid electric shock, do not remove the concentrator cover.
The cover should only be removed by a qualied Drive DeVilbiss
technician. Do not apply liquid directly to the cover or utilize any
petroleum-based solvents or cleaning agents.
Use of harsh chemicals (including alcohol) is not recommended.
If bactericidal cleaning is required, a non-alcohol based product
should be used to avoid inadvertent damage.
Use no lubricants, oils or grease.
Before attempting any cleaning procedures, turn the unit “Off” and
disconnect from AC or DC power.
Do not service or clean this device while in use with a Patient.
Exterior Cover & Battery
Clean the concentrator exterior cover and battery as needed:
1. Ensure battery is installed while cleaning the cover.
2. Use a damp cloth or sponge with a mild household cleaner on the
exterior cover, and wipe it dry. If battery is removed, wipe battery bay
with a Dry Cloth only.
CAUTION
Do not apply liquid directly to the cover.
3. Wipe battery with a Dry Cloth as needed.
Carrying Case
The carrying case should be cleaned as needed. To clean, follow these
steps:
1. Remove the device from the carrying case before cleaning.
2. As needed, clean the case by using a damp cloth with a mild
household cleaner and wipe dry.
Power Supply, AC Power Cord, DC Power
Cord
1. Disconnect cords from the device and power source before cleaning.
2. Clean the cords as needed by using a damp cloth with a mild
household cleaner, and wipe dry.
Cannula and Tubing
Clean and replace the cannula and tubing according to the manufacturer’s
instructions.
Cleaning
Suggested
cleaning
interval
Number of
cleaning
cycles *
Compatible cleaning
method
Outer Cabinet
and Battery
7 days 260 Mild dish soap (2 tbsp)
and warm water (2 cups)
Power Supply
and Cords
7 days 260 Mild dish soap (2 tbsp)
and warm water (2 cups)
Carrying Case 7 days 260 Mild dish soap (2 tbsp)
and warm water (2 cups)
* number of cleaning cycles determined by suggested cleaning interval and
expected service life
Cleaning & Disinfection When There Is A
Change Of Patient
The iGo2 POC should be cleaned and disinfected between patients as
follows:
1. Dispose of all accessories that are not suitable for reuse, particularly
the oxygen tubing and nasal cannula.

LT-2334
13
MAINTENANCE
2. Clean the device, battery, and components as described in the Care
and Cleaning section.
3. Disinfect the surfaces of the device, battery, and components using
DisCide Ultra Towelettes by Palmero or equivalent and follow the
disinfectant manufacturer’s instructions. Avoid wiping the battery
terminals.
4. Remove the outlet port and lter under it, and discard. Replace with a
new lter and outlet port (part number 125D-610).
NOTE– The disinfection process can only be completed by the
manufacturer or by an appropriately trained individual.
Disinfection
Recommended
disinfection
interval
Number of
disinfection
cycles
Compatible
disinfection
method
Cabinet, power
cords, carrying
case
Between patients 60 DisCide Ultra
Oxygen tubing,
nasal cannula,
outlet port and
lter
Do not clean,
replace between
patients
N/A N/A
RETURN AND DISPOSAL
This device may not be disposed of with household waste. After use of the
device, please return the device to the provider for disposal. This device
contains electrical and/ or electronic components that must be recycled per
EU Directive 2012/19/EU-Waste Electrical and Electronic Equipment
(WEEE). Non-infectious used accessories (e g nasal cannula) can be
disposed of as residential waste. The disposal of infectious accessories (e g
nasal cannula from an infected user) must be made via an approved waste
disposal company. Names and addresses can be obtained from the local
municipality.
Disposal of Lithium-ion Batteries
Lithium-ion batteries should be recycled. Some states have specic laws
regarding the disposal of lithium-ion batteries. You should contact your local
Government Household Hazardous Waste Agency for information on state
battery disposal regulations. For information on where you can recycle your
batteries at no cost, visit www.call2recycle.org or call 1-877-723-1297.
Recycle batteries according to national and local regulations. Contact your
local representative for assistance. The batteries must be disposed only in a
discharged state at the collection center. In case of not fully discharged
batteries, provide for a risk against short circuits. Short circuits can be
prevented by isolating the terminals with tape.

14
LT-2334
TROUBLESHOOTING AND ALARM SYSTEM
TROUBLESHOOTING & ALARM SYSTEM
Troubleshooting
The following troubleshooting chart will help you analyze and correct minor malfunctions. If the suggested procedures do not help, switch to your reserve oxygen
system and call your Drive DeVilbiss homecare provider. Do not attempt any other maintenance.
WARNING
To avoid electric shock hazard, do not remove the covers. There are no user serviceable internal components. The covers should only be removed by
a qualied Drive DeVilbiss provider/Drive DeVilbiss homecare technician.
SYMPTOM POSSIBLE CAUSE REMEDY
Unit does not operate. Display is
not illuminated and nothing
happens when Power button is
pressed and held.
1. Power button was not held. 1. Press Power button and hold for 2 seconds.
2. No battery installed 2. Battery must be installed for device to operate regardless of power
source.
3. Battery depleted or defective battery. 3. Install charged battery or contact provider for replacement
4. External power not attached and
battery is depleted.
4. Check cord connections to device, power supply, and power source.
5. No power at wall outlet. 5. Check your home circuit breaker and reset if necessary. Use a different
wall outlet if the situation occurs again.
6. Faulty Power Supply, AC Power Cord
or DC Power Cord
6. Contact your Drive DeVilbiss provider
7. Faulty DC accessory power port
outlet.
7. Check automotive fuse.
8. Unit malfunction 8. Contact your Drive DeVilbiss provider.
Unit is On; Audible Alert is
sounding; No Visual Alarm
1. No breathing detected 1. Apply cannula and breathe on device.
2. Cannula is not adjusted properly. 2. Check all cannula connections to make sure they are tight, and adjust the
cannula to t comfortably in your nose. Ensure tubing is not kinked.
3. Tubing/cannula too long. 3. Replace with shorter tubing/cannula. Cannula and tubing length cannot
exceed 25’.
4. Low ow cannula being used. 4. Replace with standard cannula.
Cannot adjust/change the Oxygen
Prescription setting.
1. Unit malfunction. 1. Contact your Drive DeVilbiss provider.
Unit not triggering properly 1. Sensor needs recalibrated 1. Turn unit ON, but do not use it for 5 minutes to auto-calibrate the sensor.
Battery Fuel Gauge symbol is
ashing with or without Audible
Alert
1. Battery is nearing depletion.
* Symbol ashes at <10% battery life.
* Audible Alert sounds at <5% battery
life.
1a. Charge Battery by connecting device to AC or DC power source.
1b. Install optional backup battery.
Device will automatically shut down within 2 minutes of reporting 5% charge
remaining.
Yellow Low O2 symbol is ashing 1. Start Up period 1. Wait until startup period is done (about 10 minutes)
Yellow Low O2symbol is On with or
without Audible Alert
1. The concentration of the unit is falling.
* Symbol ashes below 86%
* Audible Alert sounds below 85%
1. Contact your provider and switch to your reserve oxygen system.
Red Service Required symbol
ashes with Audible Alert
1. Unit Overheated 1. Ensure vent holes are not blocked. Allow unit to cool and try again.
2. Unit malfunction 2. Contact your provider and switch to your reserve oxygen system.
Battery Status Lights Never
Indicate Fully Charged
1. Using the DC auto adapter but there
is not enough power to fully charge
battery.
1. Battery will not charge if plugged into power source less than 13.8V but
the device will function correctly.
Yellow Low O2symbol is On and/or
Red Service Required light is On
1. Contaminated Sieve Beds 1. Run the unit for at least 15 minutes to recover sieve beds to full potential.
2. Replace sieve beds.
If any other problems occur with
your iGo2 POC.
1. Turn your unit Off and switch to your reserve oxygen system. Contact
your Drive DeVilbiss provider immediately.

LT-2334
15
TROUBLESHOOTING AND ALARM SYSTEM
Overview of Alarms
This device contains an alarm system which monitors the state of the device and alerts of abnormal operation, loss of essential performance or failures. Alarm
conditions are shown on the LCD display. The alarm system functions are tested at power up by lighting all visual alarm indicators and sounding the audible
alarm (beep). All alarms are Low Priority Technical Alarms.
To mute the Audible Alarm, press and release power button. The Alarm Silenced symbol will appear on the display until the alarm condition is corrected.
Alarm
Condition
Display
Shows
Visual Alarm Signal
Meaning
Audible Alarm
Signal
Visual Alarm Signal
Cleared by Action to take
Battery nears
depletion Flashing
Battery is <10% Yes, when battery is <
5%
Turn off device or switch to
alternate power source
Charge battery, change battery, or
switch to alternate power source
Low Oxygen
Concentration
Oxygen concentration is
<86%
Yes, if oxygen drops
below 85%
Turn unit off unless the
device is still in startup
period
Call provider and switch to reserve
oxygen.
Start-up period Device and systems are
tested at power up
No Once oxygen reaches at
least 86%
Wait until startup is nished (up to
10 minutes)
Malfunction RED Service Required
symbol ashes indicating
malfunction
Yes Turn unit off Call provider and switch to reserve
oxygen.
No Breathing
Detected
None More than 60 seconds
between requested
dispense cycles.
Yes Turn unit off or breathe on
device.
Resume breathing. If no breathing
is detected, device will go into
AutoBreath™ mode and dispense
oxygen at regular intervals until
breathing is detected again.

16
LT-2334
COMPONENT DESCRIPTION AND FUNCTION
COMPONENT DESCRIPTION AND
FUNCTION
Accumulator Manifold
The accumulator manifold is mounted beneath the sieve beds and
accumulator tank. It includes two check valves that are located between the
outlet of each sieve bed and the accumulator tank. These check valves allow
oxygen to pass from the sieve beds to the accumulator tank, but prevent the
reverse ow of oxygen from the accumulator to the sieve beds.
Accumulator Tank
The accumulator tank holds the concentrated oxygen and releases it to the
patient at a specied liter ow.
Battery
The iGo2 uses a rechargeable lithium ion battery of 11.25 nominal volts, 6.4
amp-hours of total capacity and allows the iGo2 to operate free of connection
to an external power source. The iGo2 concentrator will operate for a
minimum of 3.5 hours at a setting of 2 at 20 BPM (breaths per minute) using
a new fully charged battery. However, a variety of factors such as age of
battery and ow rate, can impact the duration of operating time.
After 300 charge/discharge cycles, the battery’s capacity may drop to about
75% of the original capacity; in this case, you can expect up to 2.5 hours of
runtime at a setting of 2 and 20 BPM.
Battery will charge in less than 3 hours from fully discharged state with
device off and plugged into AC power; or less than 4 hours when using DC
power. While using the concentrator, charge time will be less than 5 hours
from fully discharged state using either AC or DC power.
Compressor
A dual-head compressor creates pressure and vacuum simultaneously and
is driven from a single brushless DC motor. The motor speed is regulated by
the printed circuit board.
Cooling Fan
The cooling fan provides a constant air ow to cool the compressor. A
defective cooling fan may cause the compressor’s internal thermo-protective
(thermal cut off) device to activate and shut the compressor off. Should this
condition occur the compressor will require several minutes for the thermo-
protective device to reset.
Dispense Valve
The dispense valve ensures that the selected ow rate is delivered (pulsed)
to the patient at each inhalation. When the PC board detects breathing it
activates or briey opens the dispense valve to deliver the correct bolus of
oxygen for the selected ow rate at the beginning of inhalation.
Final Bacteria Filter
The nal bacteria lter is located inside the oxygen outlet port. It prevents
contaminants from reaching the patient through the oxygen supply.
Intake Filter (compressor silencer)
The intake lter/silencer lters the air drawn into the compressor removing
particulate matter and also reduces the sound of the intake.
Molecular Sieve Beds
Molecular sieve beds contain a synthetic alumino-silicate that attracts and
holds nitrogen in a magnetic bond. Two molecular sieve beds work in
tandem: one bed removes nitrogen from the air passing through it while the
other bed releases the removed nitrogen back into the room air.
Moisture or hydrocarbons contaminate molecular sieve material causing it to
lose its nitrogen adsorbing properties, which in turn decreases the oxygen
concentration. To allow the iGo2 to exhaust these possible contaminants and
for optimal service life it is recommended that the unit is operated for a
minimum of 30 minutes after it is powered on.
Shorter periods of operation, operating in extreme temperature/humidity
conditions or in the presence of contaminates, and/or handling and storage
conditions outside those specied, may affect the long term reliable
operation of the product.
Printed Circuit Board
The printed circuit (PC) board monitors and controls the operation of the
iGo2. It cycles pressure and vacuum between the two sieve beds and
initiates visible and audible alerts if abnormal operation is detected. The
oxygen sensing device (OSD®) is located on, and controlled by, the PC
board.
Purge Valve
Before the switching manifold cycles pressure and vacuum to alternate sieve
beds, the PC board activates the purge valve briey. During this time, the
purge valve sends oxygen from the pressurizing bed to the evacuating bed
breaking any remaining nitrogen bonds and cleaning the bed in preparation
for its upcoming pressure cycle.
Switching Manifold
The switching manifold directs the pressure and vacuum created in the
compressor to the two sieve beds in alternating cycles. The cycle shift is
controlled by the PC board and occurs when a predetermined pressure is
reached in the accumulator tank.

LT-2334
17
SERVICING AND COMPONENT REPLACEMENT
POC SERVICING AND COMPONENT
REPLACEMENT
The 125 series POC requires no routine maintenance or servicing and there
is no specic testing required. However oxygen concentration and inspiratory
trigger sensitivity can be checked if necessary. See page 19 for instructions
on testing O2% and trigger sensitivity.
There are a limited number of components that are serviceable or
replaceable in the eld. This section includes step-by-step instructions for
removal and replacement of these components.
Tools and Equipment Needed:
• T-10 Torx driver
• 5/16” Hollow core socket
• Oxygen analyzer
• Narrow bladed at head screwdriver
Cover
To remove and replace cover:
1. Ensure that all power is removed from the unit including battery.
2. Lay the POC on its side with the battery cavity to the right side and the
USB port facing upward.
3. Using a T-10 torx screwdriver remove the 6 screws securing the cover.
Cover/Case
T-10 Torx
Screwdriver
4. Carefully lift the cover off the unit and place it aside.
5. Replace the cover by placing it on top of the unit and secure with 6
screws (torque to 7 in-lbs).
Control Panel Label
To remove and replace control panel label:
1. Ensure that all power is removed from the unit including battery.
2. Remove cover from unit.
3. Disconnect the silicone oxygen tubing from the back of the oxygen
outlet port.
Disconnect Tubing from Oxygen Outlet Port
4. Lift cover plate up and out of case. Place it beside unit.
5. Disconnect both the keypad (green) and LCD display (gold) ribbon
connectors from the pc board.
Cover
Plate
Disconnect Ribbon
Connector
6. Loosen control panel label with a small instrument such as a narrow
bladed at head screwdriver and remove from cover plate.
Cover Plate
Loosen Label
7. Remove backing and any back lm from the new control panel label.
8. Slide the end of the ribbon connector through the hole in the cover
plate.
9. Align the label and seat it into place on the cover plate on top of the
LCD display.
10. Attach both the keypad and LCD display ribbon connectors to the pc
board.
11. Secure ribbons using plate restraint.
Cover Plate Restraint
12. Position cover plate in case.
13. Re-attach the silicone oxygen tubing to the back of the oxygen port.
Re-attach Tubing
14. Replace cover.

18
LT-2334
SERVICING AND COMPONENT REPLACEMENT
Oxygen Outlet Port and Final Bacteria Filter
To remove and replace oxygen outlet port and nal bacteria lter:
1. Ensure that all power is removed from the unit including battery.
2. Using a 5/16” hollow core socket unscrew the oxygen outlet port by
turning counterclockwise and remove it from the unit.
5/16” Socket
Oxygen Outlet Port
3. Install the new outlet port with nal bacteria lter by turning clockwise
(torque to 9-10 in-lbs).
Final Bacteria Filter
Oxygen Outlet Port
Sieve Beds
To remove and replace sieve beds:
1. Ensure that all power is removed from the unit including battery.
2. Lay the unit on its side with the USB port facing upward.
3. Using a T-10 torx screwdriver, remove all 6 screws from the side case
and remove the case cover from unit.
Case Screws (6)
USB Port
4. Carefully lift the front display cover plate up and out of case. Place it
beside unit.
5. Using a T-10 torx screwdriver, loosen the 2 screws at the top of the
valve manifold of the sieve bed module.
6. Lift sieve bed module up several inches out of the retaining catches
and remove the valve manifold from the top of the sieve beds.
7. Remove and discard the original sieve beds and all four rubber O-Rings
located at the top and bottom of each sieve bed.
NOTE– The O-Rings may remain on the valve manifold or in the
recesses of the accumulator tank.
8. Uncap two new sieve beds and seat the bottom O-Rings (larger
O-Rings) on the bottom of each sieve bed, and the top O-Rings on the
aluminum manifold (smaller O-Rings). NOTE– 4 O-Rings are
included with each sieve bed package.

LT-2334
19
SERVICING AND COMPONENT REPLACEMENT
9. Place sieve beds over accumulator tank assembly ports. Then rotate
beds until the bed is fully seated into position and so the serial number
is viewable. Be careful to prevent pinching the O-Rings during
assembly.
Ports
10. Gently lift the sieve beds and accumulator tank upwards to re-insert the
manifold onto the top of the sieve beds. Rotate the sieve beds slightly
while inserting to prevent pinching of the O-Rings.
11. Re-install the 2 manifold screws (torque to 6-8 in-lbs).
12. Lift the front display cover plate back into the slots of the side case.
13. Ensure that no hoses or wiring harnesses are pinched and place the
side cover back onto the unit.
14. Re-install the 6 case screws (torque to 7 in-lbs).
15. Re-install the battery into the unit.
Testing Oxygen Concentration
To test oxygen concentration:
1. Turn on the POC and adjust the oxygen delivery setting to 5.
2. Allow the unit to run approximately 60 seconds until it goes into the
AutoBreath™ mode. This is indicated by a ashing oxygen symbol (low
or normal) on the display every 3 seconds accompanied by an audible
beep every 15 seconds.
NOTE–Pressing the power button will silence the audible alarm.
3. If the oxygen is low the yellow down arrow will ash and if the oxygen is
normal the green check mark will ash. It may take 1 or 2 minutes for
the oxygen concentration to reach specication.
4. When the normal oxygen symbol starts ashing the oxygen level has
reached specication and may be tested.
5. Attach a calibrated oxygen analyzer to the outlet port. Allow the oxygen
concentration to stabilize on the analyzer before taking a nal reading.
Testing Inspiratory Trigger Sensitivity
To test inspiratory trigger sensitivity:
1. Turn on the POC and adjust the oxygen delivery setting to 5.
2. Attach a standard oxygen cannula to the outlet port.
3. Pinch the tubing for 3 -4 seconds then release it and feel if a dose
(oxygen bolus) is delivered at the cannula nasal prongs. The green
normal oxygen symbol will also blink when a dose is delivered.
4. Testing may also be done at other ow settings if desired.
5. If the unit does not deliver a pulse of oxygen when the tubing is pinched
and released or if you suspect an issue with the units’ sensitivity, return
the unit for servicing.

20
LT-2334
FIGURES, DIAGRAMS AND PARTS LIST
125 PORTABLE OXYGEN CONCENTRATOR VIEWS
POC with Power Accessories
19-23
24
18
1
2
3
17
1
Final Bacteria Filter
(included with outlet port)
5
4