Inogen One G2 User manual

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PROPRIETARY 96-02735-00-01 revC INOGEN ONE G2 OXYGEN CONCENTRATOR TECHNICAL MANUAL Page 1 of 20
INOGEN ONE G2 OXYGEN CONCENTRATOR
TECHNICAL MANUAL
96-02735-00-01
Revision C
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PROPRIETARY 96-02735-00-01 revC INOGEN ONE G2 OXYGEN CONCENTRATOR TECHNICAL MANUAL Page 2 of 20
This Manual applies to the following Inogen, Inc. products:
•Inogen One G2 Oxygen Concentrator, model # IO-200
•Inogen Universal Power Supply, model # BA-107 & BA-207
•Battery, model # BA 200
•Battery, model # BA-224
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TABLE OF CONTENTS
1. INFORMATION FOR PROVIDERS OF THE INOGEN ONE G2.................................................................................4
1.1. CAUTION AND WARNING STATEMENTS .........................................................................................................................4
2. SETTING UP A PATIENT ON INOGEN ONE.............................................................................................................6
2.1. RECOMMENDATIONS FOR USE .................................................................................................................................6
2.2. SYSTEM COMPONENTS ...........................................................................................................................................6
2.3. USING THE INOGEN ONE G2 ...................................................................................................................................7
2.4. SELECTING THE PROPER FLOW SETTING.....................................................................................................................7
3. SERVICING THE INOGEN ONE G2 ...........................................................................................................................9
3.1. MAINTENANCE BY THE PROVIDER.............................................................................................................................9
3.2. MAINTENANCE BY THE PATIENT .............................................................................................................................13
3.3. EXPECTED SERVICE REQUIREMENTS ........................................................................................................................16
4. INOGEN ONE G2 SYSTEM SPECIFICATIONS ........................................................................................................17
5. INOGEN ONE G2 ERROR CODE TABLE..................................................................................................................18
6. CONTACTS FOR MORE INFORMATION ................................................................................................................20
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1. INFORMATION FOR PROVIDERS OF THE INOGEN ONE G2
Thank you for choosing to provide your patients with the Inogen One G2 oxygen concentrator.
We are pleased to offer you and your patients one solution for your many oxygen needs.
This Technical Manual will familiarize you with provider-specific information regarding the
Inogen One G2 Oxygen Concentrator and its accessories. Before reading this Technical
Manual, please read and review the Inogen One G2 Patient Manual for description and
indications for use of the device.
Be sure to thoroughly read all of the information in this manual in its entirety. If you have any
additional questions, please see the list of contacts at the end of this Technical Manual.
Instructions included in this Technical Manual are intended to help assure that patients are
given proper guidance in the use and function of the Inogen One G2 and its accessories.
Proper care in relaying this information will not only enhance the user’s experience with the
Inogen One G2, but will also protect the patient, prolong the life of the device, and help you
avoid unnecessary service calls and complaints from users.
1.1. Caution and Warning Statements
You will see Warnings and Cautions throughout this Technical Manual. To ensure effective
Oxygen Therapy and proper operation of the Inogen One G2 Oxygen Concentrator, you
must observe them carefully.
WARNING
A WARNING indicates that the personal SAFETY of the Patient may be involved.
Disregarding a WARNING could result in a significant injury. Be sure that patients
understand all WARNING statements.
CAUTION
A CAUTION indicates that a precaution or a service procedure must be followed.
Disregarding a caution could lead to a minor injury or damage to the equipment.
Be sure that patients understand all CAUTION statements.
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NOTE A NOTE indicates specific information to improve ease of use or maintenance of
the equipment.
DESIGN
NOTE
A DESIGN NOTE indicates specific information regarding the design of the Inogen
One G2 and/or accessories. This information is included in this manual to provide
you with a greater working understanding of the device. This information is not
required to operate or maintain the Inogen One G2.
The Inogen One G2 User Manual contains additional cautions and warnings.
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2. SETTING UP A PATIENT ON INOGEN ONE
2.1. Recommendations for Use
The Inogen One G2 Oxygen Concentrator is used on a prescriptive basis by patients
requiring supplemental oxygen. It supplies a high concentration of oxygen and is used
with a nasal cannula to channel oxygen from the concentrator to the patient. You may
choose to equip your patients with the Inogen One G2 so it may be used in home,
institution, vehicle and various mobile environments.
NOTE
Availability of an alternate source of oxygen is recommended in case of power
outage. Several certifying bodies for Home Health Care Providers require that
back-up oxygen be available to the patient. Supplemental oxygen cylinders or
extra Inogen One G2 Batteries may satisfy these requirements.
CAUTION
Oxygen demand of some patients, particularly those with high breathing rates
and high flow settings, may exceed the capabilities of the Inogen One G2. Inogen
suggests that each patient be titrated to assure that the Inogen One G2 is an
appropriate solution for their needs.
2.2. System Components
The following are standard components of the Inogen One system:
oInogen One G2 Oxygen Concentrator
o12 cell Battery
oAC/DC Power Supply
oCart
oCarry Bag
oCannula
Patient Set-Up. To properly set up a patient on the Inogen One G2 System, you may need
to provide:
oPulse Oximeter (for titration, not included)
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oExtra cannulas (not included)
2.3. Using the Inogen One G2
To quickly configure the Inogen One G2 for patient use:
1. Slide the battery onto the bottom of the system until the latch clicks into place.
2. Connect AC or DC power cord to the power supply.
3. Connect the power supply to the Inogen One G2.
4. Plug into closest AC or DC outlet.
5. Turn on the Inogen One G2 by pressing the on/off button.
6. Set the Inogen One G2 to correct flow setting prescribed by the physician or
clinician by pressing the + (increase flow) or – (decrease flow) button.
7. Attach cannula to the metal hose barb located next to the handle of the Inogen One
G2.
For further information regarding the use of the Inogen One G2, please consult the
User Manual.
2.4. Selecting the Proper Flow Setting
2.4.1. Bolus Volumes Specification
All oxygen conserving devices (OCD’s) function differently, and therefore it is prudent
to titrate patients for any new conserving device. Delivery timing, bolus volume, and
oxygen concentration all contribute to a patient’s fraction of inspired oxygen (FiO2),
and therefore to the OCD’s efficacy at maintaining the patient’s blood oxygen
saturation.
As an oxygen concentrator, the Inogen One G2 does not contain a finite stored volume
of oxygen, such as with compressed gas or liquid cryogenic systems. The Inogen One
G2 can provide oxygen to the patient as long as a source of electricity is available.
However, because the oxygen is being produced as it is used, supply of oxygen is
rate-
limited . The Inogen One G2 delivers up to 900 ml/min of 90% oxygen.
At each flow setting, the Inogen One generates a specific amount of oxygen (180ml per
setting), and the on-board OCD attempts to deliver all of this product to the patient.
This is equivalent to a conserving ratio of 5.6 at all flow settings and breathing rates.
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Slower breathing patients will receive larger boluses, and faster breathing patients will
receive smaller boluses.
DESIGN
NOTE
This method of bolus volume determination is similar to what is experienced by a
patient using a continuous flow concentrator – actual alveolar oxygen inspiration
is more closely linked to flow setting than to breathing rate.
In general, the Inogen One G2 delivers 12ml per bolus per flow setting at 15 breaths per
minute (180ml/min per flow setting). The following table summarizes the bolus
volumes delivered by the Inogen One OCD at 20C and Sea Level:
Flow
setting Flow Rate (ml +/- 10%)
180 min nominal max min nominal max min nominal max
1.0 180 16.2 18.0 19.8 8.1 9.0 11.6 6.5 7.2 7.9
2.0 360 32.4 36.0 39.6 16.2 18.0 23.3 13.0 14.4 15.8
3.0 540 48.6 54.0 59.4 24.3 27.0 34.9 19.4 21.6 23.8
4.0 720 64.8 72.0 79.2 32.4 36.0 46.6 25.9 28.8 31.7
5.0 900 81.0 90.0 99.0 40.5 45.0 58.2 32.4 36.0 39.6
10 BPM
(ml +/- 10%) 20 BPM (ml +/- 10%) 25 BPM (ml +/- 10%)
DESIGN
NOTE
Bolus Volume is tuned to provide the correct bolus volume when delivered
through a nasal cannula such as the Salter Labs 1600Q. If bolus volumes are
measured without a cannula or with a different type of nasal cannula, bolus
volumes will vary from values stated in the table above.
2.4.2. Trigger sensitivity
The conserver will trigger when the negative pressure at the internal sensor reaches
approximately -0.12 cm H20. This low trigger sensitivity allows for breath detection of
very shallow breathing, but may also result in the occasional trigger due to motion of
the cannula or motion of the concentrator.
2.4.3. Flow Setting Selection Relative to Physician Prescription
Inogen has labeled each of the five settings to provide a
guideline for matching the
setting of the device to the continuous flow prescription issued by the physician.
Actual correlation is dependent upon the patient’s breathing rates, inspiratory tidal
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volume, and other physiologic factors. Inogen suggests that each patient be titrated
(a) while sedentary, (b) while active or ambulatory.
2.4.4. Use with the Inogen Satellite Conserver
The Inogen One G2 is not compatible with the Inogen One Satellite Conserver
3. SERVICING THE INOGEN ONE G2
3.1. Maintenance by the Provider
3.1.1. The Inogen One G2 is only intended to be repaired by authorized repair centers.
If a repair is required, please contact Inogen to locate your nearest
authorized repair center. If you would like to become an authorized repair
center, please contact Inogen for access to certification training, service
instructions, component part lists and the necessary repair equipment.
3.1.2. Checking Life Clock, Serial #, and SW version
To check usage, press and hold the Alarm Bell Button for 5 seconds. The concentrator’s
display will show the hour meter, the unit’s serial number, and the software version
installed on the device.
NOTE
Do not disassemble the Inogen One G2 or any of the accessories or attempt any
maintenance other than tasks described in this Technical Manual unless you have
completed a training course through Inogen. Disassembly of the Inogen One G2
or any of the accessories without proper training certification will void the product
warranties. Contact Inogen for information about receiving proper training and
certification for service of the Inogen One G2 and accessories.
3.1.3. Suggested Materials for Regular Maintenance
To perform regular field maintenance (by a technician) on the Inogen One G2 System,
you may need:
oReplacement cannulas (RP-128)
oReplacement intake screens (RP-200)
oReplacement Inogen One G2 Batteries (BA-200 or BA-224)
oHose barb removal tool (Spanner Wrench, RP-102)
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oReplacement product filters (RP-101)
oUSB storage drive for data log transfers (such as PNY PN# P-FD2GBATT2-SF)
NOTE
During a normal field maintenance visit, the technician may elect to turn off the
concentrator for approximately 30 minutes. If the patient requires oxygen during
this period, Inogen recommends making arrangements to bring an extra oxygen
supply (such as a supplemental Inogen One G2 Concentrator).
3.1.4. System Inspection
At the start of any maintenance visit:
1. Be sure to ask the patient if they have experienced any difficulties in operating
the equipment.
2. Be sure to ask the patient if they have observed any malfunctions or changes in
characteristics of the equipment.
3. Visually inspect the device, batteries, and accessories for cracks or other
damage.
4. Feel the sides of the device for vibration and listen for unusual noises, rattles, or
other signs that the device requires service.
CAUTION
Discovery of cracks or other types of external damage may be indicative of other
internal damage that may not be visible. If such external damage is discovered, be
certain to inquire as to how it occurred, and whether any changes in the device
have been noticeable since its occurrence. If you have any concern over the safety
of the device, arrange for equipment servicing.
3.1.5. Product (Bacterial) Filter
Oxygen concentrator safety standards (ISO 8359) require use of a filter in the product
line capable of removing particles larger than 10 microns. This filter is intended to
protect the user from bacterial infection, and from inhalation of small particles in the
product gas flow. The Inogen One G2 includes a product filter, conveniently located
behind the removable cannula nozzle fitting. Inogen suggests that this filter be
replaced between patients.
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To replace the Product Filter:
1. Use the Cannula Nozzle Fitting Tool (available from Inogen as RP-102) to
access the product filter. The tool has two prongs which mate with two
indentations located on the surface of the metal nozzle fitting on the Inogen
One G2.
2. Carefully remove the nozzle fitting by unscrewing it in the counter-clockwise
direction.
3. The filter, a hard plastic disk with a silicone gasket on its outer edge, will be
visible in the recess once the hose barb is removed.
4. Remove the filter, and inspect the recess to make sure it is free of debris.
5. Install a new replacement filter.
6. Carefully screw the nozzle fitting back into the recess (clockwise) until it
bottoms out on the filter gasket. Take care to squarely screw the nozzle
fitting into the threads, and not to over tighten.
WARNING
Failure to inspect and replace the product filter may result in the filter becoming
clogged or obstructed over time, and in reduced delivery of oxygen to the patient.
3.1.6. Data Logging
Operating data from your Inogen One G2 concentrator are periodically recorded to
flash memory located within the device. Data is stored for a period of approximately 6-
12 months; new data replaces the oldest data as it is collected.
Additionally, the device records errors and system information at the time of the error
which is useful in diagnostics.
3.1.6.1. The following information is a list of recorded parameters that can be
used to evaluate the device and its usage:
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•Real Time Clock
•Life Clock
•Flow Setting
•Breaths per Minute
•Low, Medium , and High Priority Errors
•Ambient Pressure
•System Temperature
•Battery Status
•Charging Status
3.1.7. Data Download
To download data from the Inogen One G2, you will need a USB mass storage device. If
one of the following drives cannot be obtained, the drive must be less than 2GB in
capacity and have a native file format of FAT32. The capacity of the drive and the file
system alone do not ensure compatibility with the Inogen One G2.
Compatible USB drives include:
•PNY Attache 2GB PN: P-FD2GBATT2-SF
•SanDisk Cruzer Micro 2GB PN:SDCZ6-2048RB
•Kingston Data Traveler G3 2GB PN:DTIG3/2GBZ
•Kingston DataTraveler 102 2GB PN:DT102/2GB
•Kingston DataTraveler DT101 2GB PN: DT101G2/2GB
•Dane-Elec DNL 2GB PN:DNLDAZMP02GCAW
•Transcend JetFlash V30 2GB PN:TS2GJFV30
•Patriot Signature 2GB PN: PSF2GUSB
To collect data:
a) With the Inogen One G2 off, insert the USB mass storage device into the USB
port behind the Gross Particle Screen
b) Plug in external power to the concentrator
c) Press the “alarm bell” and the “light” buttons for 5 seconds
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d) The administrative mode menu will show normal. Press the “+” or “-“ buttons
until the LCD reads “Data Log”
e) Press the “alarm bell” button twice and the LCD will read “Transferring”
f) When the data is transferred, the LCD will read “Success”
g) If the LCD screen reads “Failure” try a different type of USB mass storage device
3.2. Maintenance by the Patient
3.2.1. Cannula Replacement
The nasal cannula should be replaced on a regular basis. A single lumen cannula of four
to 25 feet in length must be used. Inogen has certified its performance data with the
Salter Laboratories 1600Q cannula.
CAUTION Do not use total cannula tubing length exceeding 25 feet with the Inogen One G2
unless proper saturation has been verified by a clinician.
3.2.2. Intake Filter Cleaning
At the front of the Inogen One G2, ambient air passes through a gross particle screen
that removes dust fragments. This particle screen must be cleaned on a weekly basis to
ensure adequate air flow through the device. If the particle screen is not cleaned
frequently, the life expectancy of the concentrator will be shortened due to higher
internal operating temperatures.
Particle screens should be cleaned using a mild detergent (e.g., dishwashing solution,
such as DawnTM) and water solution; be sure the filter is rinsed in water and allowed to
air dry before reuse. Additional replacement filters may be obtained from Inogen (RP-
200). There are other types of filters inside the Inogen One G2 that provide additional
filtration. Maintenance of these filters is not required under normal operating
conditions.
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3.2.3. Surface Cleaning
The outside case should be cleaned using a cloth dampened with a solution of mild
detergent (e.g., dishwashing detergent, such as DawnTM) and water or disinfecting
towelettes (e.g., DisCide Ultra).
3.2.4. Battery Care and Maintenance
The Inogen One G2 Lithium Ion Battery requires special care to ensure proper
performance and long life. Use only Inogen One G2 Batteries with the Inogen One G2
Oxygen Concentrator.
DESIGN
NOTE
The Inogen One G2 Oxygen Concentrator adjusts its oxygen production rate to
match the oxygen demand specified by the user flow setting. When the device
is used at lower settings, its battery life is extended. Additionally, at lower
flow settings, the concentrator does not generate as much heat and noise,
draw as much electric current from external power supplies, and many system
components do not wear as quickly.
Initial Charging and subsequent charging
The Inogen One G2 battery requires an initial charge to full capacity before use.
Instruct the patient to avoid running the Inogen One G2 on battery power until
this initial charging has been completed. This charge typically takes 2 hours
depending on the flow setting.
The Inogen One G2 may be run on AC or DC power and used by the patient
during this initial charging period
Normal Charging
The battery is operating properly when a battery icon is displayed on the LCD
screen.
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The Inogen One G2 batteries do not have a “memory” like older NiCad battery
packs. The Inogen One G2 batteries can be partially charged and discharged
without damaging the battery packs.
Effect of Temperature on Battery Performance
The Inogen One G2 battery powers the Inogen One G2 Oxygen Concentrator
from 2 to 4 hours using the standard 12 cell pack (BA-200) under most
environmental conditions. To maintain maximum run-time of the battery, users
should avoid running in temperatures less than 40oF (4oC) or higher than 95oF
(35oC) for extended periods of time.
The number of cycles that the battery will last is highly dependent upon the
temperature at which the battery is charged. Inogen recommends that
batteries not be charged at room temperatures exceeding 75oF (24oC).
DESIGN
NOTE
The BA-200 and BA-224 will typically achieve 500 charge/discharge cycles while
retaining 80% of their original capacity if proper battery care is taken.
The BA-200 and BA-224 will typically achieve 500 charge/discharge cycles while
retaining 80% of their original capacity if proper battery care is taken.
Instruct the user that attempting to charge their battery while attached to a
running Inogen One G2 concentrator at elevated temperatures may result in a
charging error and termination of the battery charge. In this case, they may
either (a) place the concentrator into a cooler environment, (b) charge the
battery while the Inogen One G2 is turned off and plugged into an AC power
outlet, or (c) remove the battery and charge using the External Battery Charger
(optional accessory). Improper charging may also result in decreased run time
on a single battery charge and reduced life expectancy of the battery.
Battery Time Remaining Clock
The Inogen One G2 continuously displays battery time remaining. Explain to the
user that this displayed time is
only an estimate , and the actual time remaining
may vary from this value.
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To avoid running out of battery power unexpectedly, users should regularly
monitor the displayed battery time remaining and/or carry a back-up power
supply (extra charged battery or AC Power Supply).
Storage
Instruct patients to remove the battery from the Inogen One G2 when it is not in
use to avoid inadvertent discharge. Leaving a battery attached to an idle Inogen
One G2 for prolonged periods will result in battery damage that will severely
shorten the expected life of the battery.
DESIGN
NOTE
When the concentrator is off but the battery installed, the battery will continue to
provide a small amount of power to the concentrator’s microprocessor. This
power draw will empty a full battery in approximately 20 days.
CAUTION
Leaving a Battery in the Inogen One G2 while the device is unused will irreversibly
damage the battery. After such storage, the battery may not be able to recharge
or its life cycle and/or capacity will be greatly diminished. A full battery can be
damaged in as little as 20 days if left in the concentrator while not plugged in.
Instruct users to avoid storing the Inogen One G2 battery in extreme
temperatures, below -4oF (-20oC) or above 140oF (60oC), for any amount of time.
They should avoid leaving batteries in automobiles, where these temperatures
can be regularly exceeded. Storage of the Inogen One G2 battery in a cool, dry
location will help to maximize the longevity of the battery.
3.3. Expected Service Requirements
The following table is provided as an estimate only and assumes typical environmental
conditions for temperature, humidity, and air pollution. Any smoking around the
device will severely shorten its life expectancy. Please refer to product warranty
coverage terms.
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Service Item Estimated Service Requirement Frequency
Battery 500 full charge/discharge cycles (to approximately 80% capacity)
Compressor Function of flow setting and time
17,000 run hours @ flow setting 5
20,000 run hours @ flow setting 2
Oxygen Sensor No Service Requirement
Molecular Sieve 36 to 60 months depending on usage
Valves 20,000 run hours
Intake Filter 20,000 run hours
Cooling Fan 20,000 run hours
4. INOGEN ONE G2 SYSTEM SPECIFICATIONS
INOGEN ONE G2 CONCENTRATOR
Dimensions:
Length Width Height
Cm In Cm In Cm In
No battery 27.2 10.7 9.9 3.9 22.2 8.75
12 cell
battery 27.2 10.7 9.9 3.9 24.1 9.50
24 cell
battery 27.2 10.7 9.9 3.9 26.0 10.25
In Bag 27.2 10.7 11.4 4.50 25.4 10.00
On Cart 34.3 13.5 20.3 8.00 40.6 16.00
Weight: Approximately 7.25 pounds (includes 12 cell battery)
Noise: <38 dB on flow setting 2
Warm-Up Time: Approximately 2 minutes
Oxygen Concentration: 90 + 6/-3%
Flow Control Settings: 1,2,3,4,5
Power:
AC/DC Power Supply
AC Input: 100 to 240 VAC, 50 to 60 Hz, 1.0A to 0.5A
DC Input: 13.5 to 15 VDC, 10A
Output 19 VDC, 90 W
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Rechargeable Battery: Voltage: 12.0 to 16.8 VDC,
Battery Duration: Approximately 2 to 3.5 hours for 12 cell battery
Approximately 4 to 7 hours for 24 cell battery
Battery Charging Time: Approximately 2.25 to 4.25 hours for 12 cell battery
Approximately 4.25 to 8.00 hours for 24 cell battery
Environmental Ranges
Intended for Use:
Temperature: 40
–
104oF (4
–
40oC)
Humidity: 0% to 95%, non-condensing
Classifications
Mode of Operation: Continuous Duty
Type of Protection Against Electrical Shock: Class II
Degree of Protection Against Electrical
Shock:
Type BF
Not intended for cardiac application
Degree of Protection Against Ingress of
Water:
Concentrator: IP 20
Carry bag: IP 22
Degree of Safety for Application in Presence
of Anesthetic Gases: Not suitable for such applications
5. INOGEN ONE G2 ERROR CODE TABLE
If more than one alarm is triggered simultaneously, the error code number will be the sum of the
error codes given below.
Error Code
Number
Explanation Possible Causes & Troubleshooting
Instructions
001 Low voltage on power supply Replace the power supply or remove
the battery to see if the concentrator
was running on battery power
002 Software error Unplug the external power and remove
the battery to clear the error and then
restart the concentrator
004 B/C Pressure Error The concentrator was shut down due
to a pressure error. Ensure that the
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battery is sufficiently charged. If the
error persists, return the concentrator
for service..
016 System electric current out of
specifications
There may be a fault with the motor or
the battery communication. If the
problem occurs at the end of a battery
discharge, recharge the battery. If the
error is persistent, return the
concentrator for service.
128 Signal or reading out of spec.
Applies to signals from user
interface and other internal
connections.
A sensor has given an out of range
reading and might need to be serviced
if the error persists after restarting the
concentrator.
System Hot
System Cold
temperature out of specifications Remove the concentrator from the
carry bag and restart the concentrator
after 10 minutes to cool down. If the
error persists, the fan may have failed.
If the System Cold message appears,
allow the concentrator to warm up for
15 minutes in a room temperature
environment and then restart the
concentrator.
Battery Hot
Warning
Battery Hot
Shutdown
Battery over temperature during
discharge
The concentrator might need to be
moved to a cooler location with
improved ventilation
Oxygen Low The Oxygen purity is < 82% for 30
minutes
The sieve beds may require servicing
Oxygen Error The Oxygen purity is < 50% for 10
minutes
The concentrator has a malfunction
such as a leak or a failed valve
O2 Sensor
Failure
The oxygen sensor is returning
false readings
If the problem persists, return the
concentrator for service
O2 Delivery
Error
A breath is detected, but no bolus
is delivered
Check for kinks or blockages in the
tubing between the product manifold
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CONFIDENTIAL and
PROPRIETARY 96-02735-00-01 revC INOGEN ONE G2 OXYGEN CONCENTRATOR TECHNICAL MANUAL Page 20 of 20
and the cannula barb.
If the problem persists, return the
concentrator for service.
Battery Error The system is not properly
communicating with the battery
Remove and reinsert the battery to
clear the error. If the error persists,
replace the battery
Service Needed The compressor has reached
maximum speed
The compressor is at its end of life or
there is a leak in the concentrator
External Power
Low
The input voltage is less than 17V Remove power to the concentrator and
remove and reinsert the battery.
Try another external power source
such as DC power
6. CONTACTS FOR MORE INFORMATION
Inogen Website: Patient Issues: http://www.inogenone.com
Corporate: http://www.inogen.net
Inogen : 326 Bollay Dr
Goleta, CA 93117
1-866-765-2800
[email protected]
AMSR
oxygenconcentratorstore.com
1-877-774-9271