Ohio Medical Corporation MiniOX 3000 User manual

P/N 814358 [Rev.2] 01/2015
MiniOX®3000
Oxygen Monitor
Operation Manual
WARNING
THIS MANUAL MUST BE READ CAREFULLY PRIOR TO THE OPERATION OF
THIS DEVICE. THIS DEVICE WILL PERFORM AS DESIGNED ONLY IF USED IN
ACCORDANCE WITH THE MANUFACTURER’S INSTRUCTIONS. IMPROPER USE
MAY CAUSE THE DEVICE TO FAIL TO PERFORM AS DESIGNED AND MAY CAUSE
INJURY TO THE PATIENT AND/OR HEALTHCARE PROFESSIONAL.
The warranties made by Ohio Medical Corporation®with respect to these products are voided if the products are
not installed, used and serviced in accordance with the instructions in this manual. Please protect yourself and
your patients by following them. We encourage our customers to write or call regarding this equipment prior to
use or for any additional information relative to use or repairs.
This product is not intended as a life-sustaining or life-supporting device.
FEDERAL (USA) LAW RESTRICTS THIS DEVICE TO SELL BY OR ON THE ORDER OF A PHYSICIAN
Ohio Medical Corporation®| 1111 Lakeside Drive | Gurnee, IL 60031 USA
1-866-549-6446 | fax: [phone] | www.ohiomedical.com

P/N 814358 [Rev.2] 01/2015

P/N 814358 [Rev.2] 01/2015
Ohio Medical Corporation®
Medical Instrument Warranty
This product is sold by Ohio MedicalTM under the warranties set forth in the following paragraphs. Such warranties
are extended only with respect to the purchase of this product directly from Ohio Medical or Ohio Medical’s
Authorized Dealers as new merchandise and are extended to the first Buyer thereof, other than for purpose of
resale.
For a period of twelve (12) months from the date of original delivery to Buyer, to Buyer’s order, or to an Ohio
Medical Authorized Dealer, this product, other than its expendable parts, is warranted to be free from functional
defects in materials and workmanship and to conform to the description of the product contained in the operation
manual and accompanying labels and/or inserts, provided that the same is properly operated under conditions of
normal use, that regular periodic maintenance and service is performed and that replacements and repairs are
made in accordance with the instructions provided. This same warranty is made for a period of sixty (60) days
with respect to the expendable parts. The foregoing warranties shall not apply if the product has been repaired
other than by Ohio Medical or in accordance with written instructions provided by Ohio Medical, or altered by
anyone other than Ohio Medical, or if the product has been subject to abuse, misuse, negligence, or accident.
Ohio Medical’s sole and exclusive obligation and Buyer’s sole and exclusive remedy under the above warranties
is limited to repairing or replacing, free of charge, at Ohio Medical’s option, a product, which is telephonically
reported to the nearest Ohio Medical Regional Service Office and which, if so advised by Ohio Medical, is
thereafter returned with a statement of the observed deficiency, not later than seven (7) days after the expiration
date of the applicable warranty,to the designated Ohio Medical Service Office during normal business hours,
transportation charges prepaid, and which, upon Ohio Medical’s examination, is found not to conform with
the above warranties. Ohio Medical shall not be otherwise liable for any damages including, but not limited to
incidental damages, consequential damages, or special damages.
There are no express or implied warranties which extend beyond the warranties herein above set forth. Ohio
Medical makes no warranty of merchantability or fitness for a particular purpose with respect to the product or
parts thereof.

P/N 814358 [Rev.2] 01/2015
General Warnings and Cautions
1. The MiniOX®3000 Oxygen Monitor will perform
to specifications only if it is used and serviced in
accordance with the manufacturer’s instructions.
This instrument is to be used only by qualified,
trained personnel who have carefully read the
operating manual and labels and who have observed
the information set forth. If this instrument does not
perform as described in this manual, the instrument
must not be used until the condition is rectified.
2. The MiniOX®3000 Oxygen Monitor must be calibrated
prior to each use. A two point calibration check must
be performed weekly. See Section 3, Operation. If
the instrument cannot be calibrated, the sensor must
be replaced. If the instrument is still unable to be
calibrated, the instrument must be serviced.
3. The oxygen sensor has a minimal response to
certain gases other than oxygen. Be aware of these
gases and their interference levels. SeeAppendix C,
Interferent Gases and Vapors.
4. The oxygen sensor is affected by changes in
barometric pressure. See Appendix B, Effects of
Pressure, Humidity and Temperature.
5. The sensor is a sealed unit containing a potassium
hydroxide electrolyte, which is caustic. If the sensor
should develop a leak and the contents come
in contact with skin or clothing, rinse area with
large quantities of water. In case of eye contact,
immediately flush eyes for at least 15 minutes,
holding eyes open. Call a physician. Dispose of a
leaking sensor immediately; it must be disposed of
in accordance with all applicable federal, state, and
local regulations.
6. Ensure a tight fit exists between the sensor and the tee
adapter. Ohio Medical tee adapters are engineered
to fit securely with Ohio Medical sensors. However,
the sensor retaining strap must be used to prevent
accidental separation of sensor and tee adapter.
7. Never operate the MiniOX®3000 Oxygen Monitor if it
is suspected that water or other liquids have entered
into the case. If this occurs, immediately turn the unit
OFF and contact your nearest Ohio Medical Service
Center for additional information.
8. Use of devices generating or emitting electromagnetic
radiation near the MiniOX®3000 Oxygen Monitor may
interfere with the proper operation of the product,
causing it to fail to perform as designed. Particularly,
the electromagnetic radiation from the interfering
device may cause the product to display incorrect/
erratic values or to stop operating. Special attention
should be paid to the patient if this occurs.
9. Never use the MiniOX®3000 Oxygen Monitor in
combustible atmosphere, such as occurs with
flammable anesthetics. Such use could result in
ignition of atmosphere.
10. Never allow an excess length of cable near the
patient’s head or neck, as such could result in
strangulation. Secure excess cable to the bed rail or
other suitable object.
FAILURE TO COMPLY WITH THESE WARNINGS
COULD JEOPARDIZE THE WELL-BEING OF THE
PATIENT AND/OR HEALTH CARE PROFESSIONAL.
1. Remove internal battery if unit is to be non-operational
for extended periods of time.
2. Observe polarity when inserting a new battery.
Incorrect connection may cause damage to the
instrument.
3. The MiniOX®3000 Oxygen Monitor must never be
immersed in any cleaning solution, autoclaved, or
exposed to temperatures greater than 70oC.
4. Use only genuine Ohio Medical Corporation
accessories and replacement parts. Failure to do
so may seriously impair the monitor’s performance.
Repair or alteration of the MiniOX®3000 Oxygen
Monitor beyond the scope of the maintenance
instructions or by anyone other than an authorized
Ohio Medical Corporation service person could
cause the product to fail to perform as designed.
5. Improper mounting of the sensor in a breathing circuit
may result in inaccurate readings. The sensor MUST
be mounted with the deflector pointing downward to
prevent moisture collection on the sensor membrane
(see Figures 3-3 and 3-4 in Section 3, Operation).
Install the sensor upstream from the humidifier to
minimize its exposure to moisture.
6. Never use a MiniOX®3000 Oxygen Monitor with a
cable that appears worn, cracked, or has damaged
insulation.
FAILURE TO COMPLY WITH THESE CAUTIONS
COULD RESULT IN INSTRUMENT DAMAGE AND/OR
FAILUREOFUNITTOPERFORMTOSPECIFICATIONS.
WARNING
CAUTION
MiniOX®3000 Oxygen Monitor General WARNINGS and CAUTIONS
WC-1

P/N 814358 [Rev.2] 01/2015
MiniOX®3000 Oxygen Monitor General WARNINGS and CAUTIONS
Statement citing a potential safety hazard and
possible injury to yourself or others.
Statement citing a possibility of damage to the
instrument or other property.
Advisory on instrument function.
CAUTION
WARNING
Definition of Warnings and Cautions
NOTE:
WC-2

P/N 814358 [Rev.2] 01/2015
MiniOX®3000 Oxygen Monitor Table of Contents
Section 1
Introduction..........................................................................................1-1
General Description.................................................................................................................. 1-1
Operating Principles................................................................................................................. 1-2
MiniOX®3000 Oxygen Sensor ............................................................................................ 1-2
MiniOX®3000 Instrument .................................................................................................... 1-2
Operator Interface .............................................................................................................. 1-2
Internal Functions .............................................................................................................. 1-2
Data and System Status ..................................................................................................... 1-2
Performance Features ............................................................................................................ 1-2
Calibration............................................................................................................................ 1-2
Low/High Oxygen Concentration Alarms ............................................................................. 1-3
Low Battery Alarms ............................................................................................................. 1-3
Sensor Indicator .................................................................................................................. 1-3
Calibration Needed Indicator .............................................................................................. 1-3
Error Handling ..................................................................................................................... 1-4
Test Functions...................................................................................................................... 1-4
Radio FrequencylElectromagnetic Insensitivity.................................................................... 1-4
Section 2
Setting Up the MiniOX®3000 Oxygen Monitor ................................ 2-1
Figure 2-1 MiniOX®3000 Oxygen Monitor ..................................................................... .2-1
CAUTION................................................................................................................ 2-2
Figure 2-2 Assembled MiniOX®3000 Oxygen Monitor ................................................... 2-2
Section 3
Operation..............................................................................................3-1
Calibration ................................................................................................................................ 3-1
CAUTION..................................................................................................................... 3-1
To Calibrate In Room Air, Figure 3-1 ................................................................................... 3-1
Figure 3-1 Calibrating the MiniOX®3000 Oxygen Monitor in Room Air......................... . 3-1
To Calibrate at 100% O2, Figure 3-2 .................................................................................. 3-2
Figure 3-2 Calibrating the MiniOX®3000 Oxygen Monitor at 100% O2........................... 3-2
Two-Point Linearity Check....................................................................................................... 3-3
Setting the Alarms. .................................................................................................................. 3-3
To Set the Low Alarm ........................................................................................................... 3-3
To Set the High Alarm ......................................................................................................... .3-4
Alarm Conditions..................................................................................................................... 3-4
High and Low Oxygen Concentration Alarms ..................................................................... 3-4
Silencing an Alarm ............................................................................................................... 3-4
Low Battery Alarms. ............................................................................................................ 3-4
Sensor Indicator................................................................................................................... 3-4
Error Handling......................................................................................................................3-5
Table 3-1 Alarms and Status Messages .......................................................................... 3-5
Test Functions..................................................................................................................... 3-6
Battery Test .......................................................................................................................... 3-6
High and Low Alarms Test. .................................................................................................. 3-6
Installing the Sensor in a Breathing Circuit. ............................................................................. 3-6
TOC-1

P/N 814358 [Rev.2] 01/2015
MiniOX®3000 Oxygen Monitor Table of Contents
Mounting the Instrument with a Pole Bracket........................................................................... 3-6
Figure 3-3 Installing Sensor into Tee Adapter ..................................................................... 3-7
Figure 3-4 Sensor in Breathing Circuit................................................................................. 3-8
Figure 3-5 MiniOX®3000 Oxygen Monitor with Pole Mounting Bracket .............................. 3-8
Section 4
Maintenance and Care ........................................................................4-1
CAUTION .................................................................................................................... 4-1
Battery & Battery Cover Replacement. .................................................................................... 4-1
Figure 4-1. Battery Cover Removal ................................................................................ 4-1
Sensor Replacement................................................................................................................ 4-2
Deflector Replacement............................................................................................................. 4-2
Cable Replacement.................................................................................................................. 4-2
Cleaning, Disinfection and Sterilization.................................................................................... 4-2
CAUTION..................................................................................................................... 4-2
Instrument ........................................................................................................................... 4-2
Sensor and Cable ............................................................................................................... 4-3
Sensor Deflector, Retaining Strap and Tee Adapter ............................................................ 4-3
Appendix A
Specifications............................................................................................. A-1
Table A-1. Specifications. .................................................................................................A-1
Appendix B
Effects of Pressure, Humidity and Temperature ............................B-1
CAUTION ....................................................................................................................B-1
Effects of Pressure ..................................................................................................................B-1
CAUTION ....................................................................................................................B-1
Effects of Humidity ...................................................................................................................B-1
Effects of Temperature ............................................................................................................B-1
CAUTION ....................................................................................................................B-1
CAUTION ....................................................................................................................B-1
Appendix C
Interferent Gases and Vapors............................................................C-1
Table C-1 Interferent Gases and Vapors ....................................................................... C-1
Appendix D
Troubleshooting ................................................................................ D-1
Table D-1 Troubleshooting ............................................................................................ D-1
Appendix E
Error Codes......................................................................................... E-1
Table E-1 Error Codes ....................................................................................................E-1
Appendix F
Accessories and Replacement Parts ................................................F-1
Table F-1 Accessories and Replacement Parts .............................................................F-1
TOC-2

P/N 814358 [Rev.2] 01/2015
MiniOX®3000 Oxygen Monitor Section 1, Introduction
Section 1
Introduction
The MiniOX®3000 Oxygen Monitor provides
continuous, direct monitoring of oxygen mixtures in a
variety of applications, including:
• Respiratory Therapy (e.g., respirators, ventilators,
pediatric incubators)
• Anesthesiology (e.g., anesthesia machines)
• Oxygen Therapy (e.g., oxygen tents)
The monitor is for use by trained health care
professionals:
• under the supervision, or on the order, of a
physician
• in a hospital or clinical setting
• during emergency transport
General Description
Battery-operated and microprocessor-controlled,
the MiniOX®3000 Oxygen Monitor measures
oxygen concentrations in the 0% to 100% range.
The monitor’s performance features ensure reliable
and accurate oxygen measurement. These features
include:
• calibration function
• high and low oxygen concentration alarms
• low and depleted battery alarms
• oxygen sensor indicator
• automatic error detection
• battery test
• oxygen alarm test
The calibration function allows calibration of
the device against room air (defined as oxygen
concentration of 20.8%) or 100% O2. Audible and
visual alarms alert the operator when monitor
calibration is required.
High and low oxygen concentration alarms may be
set in the ranges of:
• 16% to 100% (high alarm) and
• 15% to 99% (low alarm)
or the default high/low settings may be used (50%
and 18%, respectively). Audible and visual alarms
activate when oxygen concentrations:
• fall below the preset (or default) low alarm setting
• rise above the preset (or default) high alarm
setting
The MiniOX®3000 Oxygen Monitor:
• detects low and depleted battery conditions
• activates audible and visual alarms
• alarms for:
• sensor disconnection or malfunction
• various internal operating errors
The MiniOX®3000 Oxygen Monitor conducts self-
checks:
• at power-up (battery installation)
• at turn on
• during operation
Additionally, the monitor has two operator-initiated
test functions:
• The Alarm Test verifies the operation of the high
and low oxygen level alarms
• The Battery Test assesses the relative remaining
battery life
The MiniOX®3000 Oxygen Monitor consists of two
components: the instrument and the oxygen sensor.
The front of the hand-held instrument features:
• a touch-sensitive keypad
• a liquid crystal display (LCD) that shows:
• monitor status
• continuous oxygen concentrations
• preset alarm levels
• two red light-emitting diodes (LEDs) which serve
as visual alarms
The back of the instrument case features:
• a bail bar to allow the instrument to “stand” on a
horizontal surface during monitoring operations
• a plastic wedge that slides into an optional
bracket for mounting the instrument on a
horizontal or vertical pole
The galvanic oxygen sensor consists of a deflector
assembly and a plastic housing containing two
electrodes. A coiled cable connects the sensor to the
1-1

P/N 814358 [Rev.2] 01/2015
MiniOX®3000 Oxygen Monitor Section 1, Introduction
instrument. Plugs at each end of the cable snap into
jacks (one located in the sensor housing and one
located in the instrument) and are held securely in
place by twist collars.
The oxygen sensor is introduced into a breathing
circuit through an Ohio Medical Corporation tee
adapter connecting two lengths of tubing. The
sensor/tee adapter assembly is positioned with the
sensor deflector pointing downward to ensure that
moisture does not collect on the sensor membrane.
The retaining strap ensures that the sensor remains
securely in place in the tee adapter.
See the following appendices:
• Appendix A, Specifications
• Appendix F, Accessories/Replacement Parts
Operating Principles
MiniOX®3000 Oxygen Sensor
The oxygen sensor includes two electrodes:
• a gold cathode exposed to the atmosphere
through a fluoropolymer membrane
• a lead anode submersed in a potassium
hydroxide solution
When oxygen diffuses through the membrane, the
electrochemical reduction of oxygen on the cathode
and the corresponding oxidation on the anode
generate an electrical current proportional to the
partial pressure of oxygen in the sample atmosphere.
The instrument temperature compensates, amplifies,
and converts the electrical current, displaying O2
values.
The Ohio Medical Corporation oxygen sensor is self-
zeroing; when no oxygen is present:
• no current is produced
• 0% oxygen is displayed
The sensor has a minimal response to gases other
than oxygen (see Appendix C, Interferent Gases and
Vapors).
MiniOX®3000 Instrument
The MiniOX®3000 Oxygen Monitor is battery-
powered and microprocessor-controlled. The
microprocessor:
• provides the operator interface
• controls internal functions
• monitors data and system status
Operator Interface
When the operator enters commands using the
keypad, the microprocessor interprets these
commands and responds by:
• displaying text in the LCD
• activating the LEDs
• emitting audible tones
Internal Functions
During operation, the microprocessor coordinates all
internal functions including:
• self-testing
• response to keypad commands
• data collection
• display update
• confirmation that a programmed sequence is
properly followed
Data and System Status
The signal from the oxygen sensor is amplified
and converted to a digital value through electronic
circuitry. Following software compensation, the
microprocessor:
• compares current data to preselected values
• displays the updated O2concentration
• if appropriate, activates audible and visual alarms
The microprocessor also monitors internal systems,
indicating such operating conditions as:
• calibration required
• low battery voltage
• sensor disconnect
• system error
Performance Features
Calibration
The MiniOX®3000 Oxygen Monitor must be
calibrated:
1-2

P/N 814358 [Rev.2] 01/2015
MiniOX®3000 Oxygen Monitor Section 1, Introduction
• daily, while in operation
• each time the monitor is turned ON
• following sensor disconnection/reconnection
• when environmental conditions (pressure,
humidity and temperature) change
When a MiniOX®3000 Oxygen Monitor with a sensor
connected is turned ON, the monitor performs a self-
test and a calibration requirement occurs:
• “CAL” flashes on the display, telling the operator
to carry out the calibration procedure
The calibration procedure is initiated by exposing the
sensor to a calibration gas [either room air (defined
as oxygen concentration of 20.8%) or 100% oxygen]
and pressing the corresponding key on the keypad.
The following appears on the display:
• “CAL LOCKED”
• the selected calibration gas concentration.
When the unlock key is pressed the monitor
displays:
• “CAL”
• a 10-segment bar graph which “counts down” two
seconds per bar for 20 seconds
The monitor automatically calibrates to the selected
concentration. At the end of the 20 seconds, the
monitor:
• emits a beep indicating that calibration is
complete
• enters the operating mode
See Section 3, Calibration
Low/High Oxygen Concentration Alarms
The MiniOX®3000 Oxygen Monitor has audible
and visual alarms that activate when oxygen
concentrations exceed preset low or high alarm
settings. Default settings are 18% and 50%,
respectively; however, the operator may select alarm
levels between 15% and 100%. See Section 3,
Setting the Alarms
When the MiniOX®3000 Oxygen Monitor detects an
oxygen concentration that exceeds the preset alarm
limit:
• the red LED for that alarm flashes
• an audible alarm activates
• the measured concentration appears in the
display
The operator can silence the audible alarm for
three 30-second intervals for a total of 90 seconds;
however, the visual alarm continues to flash. At
the end of the silence period, the audible alarm
reactivates if the alarm condition is not corrected. See
Section 3, Silencing an Alarm
Low Battery Alarms
The MiniOX®3000 Oxygen Monitor features a two-
stage battery alarm that warns of depleted and
expired battery voltage:
• The first alarm alerts the operator that the monitor
has approximately six hours of operating time
remaining:
• a warning message appears in the display
• an audible alarm sounds at 30-second
intervals
• If the operator does not replace the battery after
this alarm, a second low battery alarm activates
when the battery is no longer able to support
monitoring. The monitor:
• displays a warning message
• activates an audible and visual alarm (See
Section 3, Low Battery Alarms)
Sensor Indicator
During monitoring, the MiniOX®3000 Oxygen Monitor
displays a warning message; audible and visual
alarms activate if:
• the oxygen sensor becomes disconnected
• the cable fails or disconnects from the sensor or
instrument
• the sensor membrane is perforated
• the thermistor circuit opens
Calibration Needed Indicator
The MiniOX®3000 Oxygen Monitor flashes “CAL”:
• when the monitor is turned ON
• following sensor disconnection/reconnection
1-3