Nuvair Pro O2 alarm Analyzer User manual

Operation Manual
Pro O2
Pro O2 Remote
Oxygen Analyzers
01.11
Andersen Medical Gas
12 Place Lafifitte
Madisonville, LA 70447
http://www.TheMedicalGas.com
1-866-288-3783

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 2
Pro O
2
Oxygen Analyzer Operation Manual
If you have any questions on this equipment please contact Technical Support at:
Nuvair
2949 West 5
th
St.
Oxnard, CA 93030
Phone: [phone]
FAX: [phone]
Email: [email protected]
Hours: Monday through Friday
8:00 AM to 5:00 PM PST USA
This Operation Manual contains important safety information and should always be
available to those personnel operating this equipment. Read, understand, and retain all
instructions before operating this equipment to prevent injury or equipment damage.
Every effort was made to ensure the accuracy of the information contained within this manual; however,
we retain the right to modify its contents without notice. If you have problems or questions after reading
the manual, stop and call for information.
WARNING

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 3
Pro O
2
Oxygen Analyzer Operation Manual
Table of Contents
1.0Introduction ................................................................................................... 4
2.0System Description ……………………………………………………………… 5
2.1Controls …………………………………………………………………… 6
2.2Display ……………………………………………………………………. 6
2.3Oxygen Sensor ………………………………………………………….. 6
2.4Battery ……………………………………………………………………. 7
2.5Flow Adapter Cap (Pro O
2 TM
) …………………………………………. 7
2.6Flow Diverter (Pro O
2
Remote
TM
) ……………………………………… 8
3.0Calibration ………………………………………………………………………… 9
3.1Calibration Methods ……………………………………………………… 9
3.2Calibration in Air ………………………………………………………….. 10
4.0Operation ....................................................................................................... 12
4.1Pro O
2 TM
…………………………………………………………………… 12
4.2Pro O
2
Remote
TM
………………………………………………………… 14
5.0Maintenance .................................................................................................. 15
5.1Analyzer Care ……………………………………………………………… 15
5.2Battery Replacement ……………………………………………………… 15
5.3Oxygen Sensor Replacement …………………………………………… 16
6.0Spares and Accessories …………………………………………………………. 19
6.1Oxygen Sensor ……………………………………………………………. 19
6.2Flow Restrictors and Regulators ………………………………………… 19
6.3Tee Adapter ……………………………………………………………….. 20
7.0Troubleshooting .............................................................................................. 20
Appendix ………………………………………………………………………………… 21
Calibration Correction Values for Temperature and Humidity ……………. 21
Analyzer Specifications ……………………………………………………….. 21
Warranty …………………….………………………………………………….. 23

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 4
Pro O
2
Oxygen Analyzer Operation Manual
1.0Introduction
This manual will assist you in the proper set-up, operation and maintenance of the Pro O
2 TM
and
Pro O
2
Remote
TM
Oxygen Analyzers. Be sure to read the entire manual.
Throughout this manual we will use certain words to call your attention to conditions, practices
or techniques that may directly affect your safety. Pay particular attention to information
introduced by the following signal words:
Indicates an imminently hazardous situation, which if not avoided, will result in serious
personal injury or death.
Indicates a potentially hazardous situation, which if not avoided, could result in serious
personal injury or death.
Indicates a potentially hazardous situation, which if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.
Notifies people of installation, operation or maintenance information which is important
but not hazard-related.
WARNING
DANGER
CAUTION
NOTICE

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
2.0System Description
The Pro O
2 TM
and Pro O
2
Remote
TM
Oxygen Analyzers (“the Analyzer”) measure oxygen (O
2
)
levels in gases in the range of 0.1 - 100.0% O
2
. The choice of Analyzer depends on the
application:
•Pro O
2 TM
– where pressurized gas must be analyzed and the pressure and flow of the
sample flow can be regulated
•Pro O
2
Remote
TM
- where non-pressurized gas must be analyzed or for pressurized
gas applications where the Analyzer must be located remote to the sensor
Pro O
2 TM
Pro O
2
Remote
TM
The Analyzer is a water and impact resistant unit compatible with outdoor and marine
environments. Pressurized gases must be regulated to one atmosphere absolute (0 P.S.I.) prior
to analyzing.
When used in breathing gas applications, redundant Analyzers must be used for verification. In
diving, for example, one Analyzer must be used to monitor oxygen during breathing gas
production and a second independent Analyzer must be used to verify the oxygen content of the
breathing gas prior to diver use.
When using the Analyzer for diving applications with mixed gases other than air, you
must first obtain proper instruction from a certified diving instructor with a nationally
recognized training agency qualified in mixed gas diving. Improper use of this analyzer
may result in incorrect gas analysis which can lead to serious personal injury or death.
WARNING
Flow
Adapter Cap
Flexible
Tubing
Internal
Sensor
Detachable
6 ft. Electrical
Cord
External Sensor
Flow Diverter

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
Although the Analyzer is a rugged instrument, careless handling or abuse may result in
damage to the Analyzer resulting in inaccurate gas analysis. Inaccurate gas analysis can
lead to serious personal injury or death.
Breathing gas must always be analyzed by two separate Analyzers, with one used for
production and one used for analysis after production. Never depend on a single
Analyzer during both gas production and delivery. If the Analyzer readings do not agree,
both units must be recalibrated. Inaccurate gas analysis can lead to serious personal
injury or death.
2.1.Controls
2.2.Display
2.3.Oxygen Sensor
The Analyzer uses an electrochemical O
2
Sensor to measure O
2
content in gases. The Sensor
is disposable and user-replaceable, with a life expectancy of up to 36 months depending on
usage. The Sensor is designed for use at one atmosphere absolute (0 P.S.I.) pressure. The
gas mixture to be analyzed must be regulated accordingly, and any potential for pressure or
vacuum must be avoided.
To extend sensor life, the Analyzer is supplied with the Sensor in a sealed condition. When first
received, please verify that sealing device is intact. If the sealing device is torn or missing,
contact your supplier for assistance. The sealing device must be removed prior to initial use
and is not necessary to reuse.
Liquid Crystal
Display
Calibrate Knob –
Rotating Type
Power Switch -
Push Button
Type
Location of
Low Battery
Icon
Oxygen
Percentage
0.1 – 100.0%
WARNING
WARNING

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
Pro O
2
TM
Pro O
2
Remote
TM
2.4.Battery
Power is provided by a standard alkaline 9-volt battery. It is located inside the Analyzer and is
user-replaceable.
2.5.Flow Adapter Cap (Pro O
2 TM
)
The Flow Adapter Cap with flexible tubing and flow orifice attaches to the Pro O
2 TM
Sensor port
and is sealed by an o-ring. It can be used to direct the gas sample flow to the Sensor via one of
two methods:
External
Sensor
Flow Diverter
Remove Sealing
Device Before Use
Sensing Port
for Internal
Sensor
Plug Hole For
Detachable
Electrical Cord
Sensor Sealed
in Bag To
Prevent Oxygen
Transfer
Sample Flow Method
Flow is Delivered from
Low Pressure Source
via Flexible Tubing
Direct Flow Method
Flow is Directed to
Flow Orifice on Face
of Flow Adapter Cap
Vent Hole

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
2.6.Flow Diverter (Pro O
2
Remote
TM
)
The Flow Diverter is installed to the user’s non-pressurized device to direct gas flow to the
Sensor:
•Slip Fit Method – Install optional Tee Adapter (see Spares and Accessories section) in-
line with gas flow path. Insert Flow Diverter with o-ring into small bore of Adapter.
•Press Fit Method – Remove the Flow Diverter o-ring and press fit the Diverter into a 9/16
inch diameter cylindrical bore in gas flow path.
Flow Diverter
Directs Gas to
Sensor
Sensor Screws
into Diverter

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
3.0Calibration
Oxygen Analyzers must be calibrated before each use. Improper calibration may result
in the use of incorrect breathing gas mixtures, which may cause serious injury or death
to the person using the gas mixture.
Calibration or use of the Analyzer with a low battery may result in inaccurate readings.
Inaccurate gas analysis can lead to serious personal injury or death.
If the Analyzer has been subjected to a recent change in ambient temperature, allow it to
stabilize for one hour before calibration.
When Analyzer calibration is performed at different atmospheric conditions than the gas
being measured, a calibration correction value may be required. Improper calibration
may result in the use of incorrect breathing gas mixtures, which may cause serious
injury or death to the person using the gas mixture.
3.1.Calibration Methods
Calibration should always be performed at the same temperature and humidity conditions as the
gas being measured. This is not always possible, for example, in a tropical environment where
dry breathing gas from a high-pressure Scuba cylinder will be measured after Analyzer
calibration has been performed in the warm, humid ambient air. Under these conditions a
calibration correction value may be required, as detailed in the Appendix, or dry air must be
used for calibration.
Obtain proper training before attempting special calibration procedures. Improper
calibration may result in the use of incorrect breathing gas mixtures, which may cause
serious injury or death to the person using the gas mixture.
Calibration in air at sea level is suitable for many applications; however, the closer the oxygen
content of the calibration gas is to the gas being tested, the more accurate the measurement
results. The following special applications require methods and training beyond the scope of
this manual:
•Analysis of gases containing greater than 50% oxygen requiring calibration with pure
oxygen or certified calibration gas
•Analysis of gases at altitudes above sea level requiring correction for reduced
atmospheric pressure, contact Nuvair for more information.
WARNING
WARNING
WARNING
NOTICE
WARNING

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 10
Pro O
2
Oxygen Analyzer Operation Manual
3.2.Calibration in Air
The following pictures illustrate the steps required to calibrate the Pro O
2 TM
Analyzer.
Pro O
2 TM
Step 1 Step 2
Step 3 Step 4
Monitor Display
for Low Battery
Warning
Turn Analyzer
On
Remove Flow
Adapter Cap
Expose Sensor
Port to Still Air
Until Display
Stabilizes
Adjust
Calibrate Knob
Until Display
Reads 20.9%
O
2
Replace Flow
Adapter Cap
Do Not Disturb
Calibrate Knob

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
The following pictures illustrate the steps required to calibrate the Pro O
2
Remote
TM
Analyzer.
Pro O
2
Remote
TM
Step 1 Step 2
Step 3 Step 4
Unscrew Sensor
From Flow
Diverter
Verify
Electrical
Cord is Firmly
Attached at
Both Ends
Monitor Display
For Low Battery
Warning
Turn Analyzer
On
Expose Sensor Port
to Still Air Until
Display Stabilizes
Adjust
Calibrate
Knob Until
Display Reads
20.9% O
2
Reinstall
Sensor to
Diverter

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2TM
Oxygen Analyzer
NUVAIR Page 12
Pro O
2
Oxygen Analyzer Operation Manual
4.0Operation
Prior to each Analyzer use:
1) Verify that Sensor sealing device is removed
2) Turn unit on and monitor Display for low battery warning
3) Calibrate Analyzer as required.
Never expose the Oxygen Sensor to pressure or you may cause damage and/or false
readings. Damaged Sensors will not provide accurate gas analysis. Inaccurate gas
analysis can lead to serious personal injury or death.
4.1.Pro O
2 TM
The Pro O
2 TM
can be used to analyze a regulated gas sample flow, the contents of a gas
cylinder, or the flow from a regulator. The flow rate of gas must equal 1 – 5 L/min. To produce
this flow, a Flow Restrictor and Regulator may be required. See Spares and Accessories
section.
Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any
gas stream to be directed at any part of your bod y.
Sample Flow Method
Step 1 Step 2
Step 3
Attach Flexible
Tubing to Gas
Sample Flow
of 1-5 L/min
Verify that
Gas is Flowing
Out Holes in
Flow Adapter
Cap
Allow 15 Seconds for
Display Reading to
Stabilize
Record Reading
while Gas is Flowing
WARNING
WARNING

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 13
Pro O
2
Oxygen Analyzer Operation Manual
When analyzing Scuba Cylinder gases, it is
convenient to obtain the sample gas directly
from the Buoyancy Compensator (BC) inflator
hose attached to the Regulator first stage.
A special Flow Restrictor is attached to the
inflator hose quick-disconnect (QD) fitting.
The fitting on the other end of the Restrictor
is then inserted into the tubing supplied with
the Analyzer. A variety of Flow Restrictors
are available to fit different types of inflator
hose QD fittings. See Spares and
Accessories section.
Direct Flow Method – Gas Cylinder
Step 1 Step 2
Step 3 Step 4
Slowly Open
Cylinder Valve
until Slight
Hiss of Gas is
Heard
Hold Flow
Adapter Cap
Flow Orifice up
to Gas Flow
Verify that Gas
is Flowing Out
Tubing
Allow 15
Seconds for
Display Reading
to Stabilize
Record Reading
While Gas is
Flowing
Verify that Gas
Continues to Flow
from Valve. If Not,
Repeat Procedure
Close Cylinder
Valve & Remove
Analyzer
Flow Restrictor
BC Inflator Hose
QD Fitting

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 14
Pro O
2
Oxygen Analyzer Operation Manual
Direct Flow Method – Scuba Regulator
Step 1 Step 2
Step 3
4.2.Pro O
2
Remote
TM
The Pro O
2
Remote
TM
is used where non-pressurized gas must be analyzed or for pressurized
gas applications where the Analyzer must be located remote to the sensor:
Pictured is the rear of a Nuvair Nitrox Generator
with sensor placed in mixing tube.
Step 1 Step 2
Attach Scuba
Regulator to
Cylinder Valve
Open Cylinder
Valve
Hold Flow Adapter
Cap Flow Orifice
Up to Gas Flow
Allow 15
Seconds for
Display Reading
to Stabilize
Record Reading
while Gas is
Flowing
Lightly Press
Regulator Purge
Button to Get Very
Low Flow of Gas
Begin Flow of
Gas Stream
Past Sensor
Allow 15
Seconds for
Display Reading
to Stabilize
Record Reading
while Gas is
Flowing
Gas Flow

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2TM
Oxygen Analyzer
NUVAIR Page 15
Pro O
2
Oxygen Analyzer Operation Manual
5.0Maintenance
5.1.Analyzer Care
•Do not clean Analyzer with anything other than a damp soft cloth.
•Do not immerse Analyzer in liquid, leave unprotected outside, or store in a wet
environment.
•Protect Analyzer from excessive shock and impact.
•Protect Analyzer from excessive exposure to sunlight and extreme temperatures.
5.2.Battery Replacement
Be sure to dispose of spent, leaking, or damaged Batteries properly, according to local
regulations.
The following pictures illustrate the steps required to replace the battery in the Analyzer.
Step 1 Step 2
Step 3 Step 4
Remove
Screws
Remove
Front
Cover
Remove &
Replace
Old Battery
Reinstall
Screws
Replace
Front Cover
- Do Not
Pinch Wires
Turn Analyzer
On
Perform Air
Calibration
NOTICE

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2TM
Oxygen Analyzer
NUVAIR Page 16
Pro O
2
Oxygen Analyzer Operation Manual
Be sure to dispose of spent, leaking, or damaged Batteries properly, according to local
regulations.
Panel Mount Analyzers require the user to open the compressor and access the rear of the
analyzer for battery replacements. Once you have access to the rear of the analyzer the
following instructions will help in the replacement of the battery.
The Analyzer case is made of two components the face plate mounted on the outside of the
compressor and the box inside the compressor which stores the battery, wires and the remote
sensor inputs.
Care should be taken when removing the box so that you do not pull apart the wiring between
the front LCD face and the box.
Step 1 Step2
Step 3 Step 4
Once the Analyzer is put back together you need to
turn on the Analyzer and Calibrate the Analyzer before
operating the compressor.
Remove
Screws
Remove
Analyzer
Box Inside
Compress
or
Remove &
Replace
Old Battery
Replace
Sensor
Plug
Replace
Front Cover
- Do Not
Pinch Wires
Replace
Thermistor
Plug
(Marked with a
“T” on the plug”
NOTICE

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2TM
Oxygen Analyzer
NUVAIR Page 17
Pro O
2
Oxygen Analyzer Operation Manual
5.3.Oxygen Sensor Replacement
Be sure to dispose of spent, leaking, or damaged Oxygen Sensors properly, according to
local regulations.
Do not swallow (ingest) either the electrolyte from the Oxygen Sensor or the Sensor
itself. The Potassium Hydroxide chemical contained in the Sensor can cause severe
injury or death. If electrolyte or the Sensor is swallowed, seek medical attention
immediately.
If after handling the Oxygen Analyzer or Sensor, you find that your fingers or other parts
of your body feel “slippery” or the skin or eyes sting, immediately flush affected area
with clean, fresh water for at least 15 minutes. The stinging or slippery sensation is an
indication of a leaking Sensor. The Potassium Hydroxide chemical contained in the
Sensor can cause severe injury or death. Seek immediate medical attention if eye
contact is made or skin stinging persists.
Handling Sensors
Replacement Sensors are supplied in sealed bags. Normally Sensors do not present a health
hazard. Before opening the bag, check that the electrolyte has not leaked. However, if
electrolyte leakage has occurred, do not open bag. Dispose of Sensor properly or return for
replacement.
If electrolyte leakage occurs while the Sensor is in service, use rubber gloves and chemical
splash goggles for handling. Rinse contaminated surfaces thoroughly with water.
Electrolyte First Aid Procedures
•Ingestion - Drink a large volume of fresh water. Do not induce vomiting. Get immediate
medical attention.
•Eye Contact - Flush eyes with clean, fresh water for at least 15 minutes and get medical
help immediately.
•Skin Contact - Flush the affected area with clean, fresh water for at least 15 minutes and
removed contaminated clothing. If stinging persists get medical attention.
WARNING
DANGER
CAUTION

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2TM
Oxygen Analyzer
NUVAIR Page 18
Pro O
2
Oxygen Analyzer Operation Manual
The following pictures illustrate the steps required to replace the Sensor in the Pro O
2 TM
.
Pro O
2 TM
Step 1 Step 2
` Step 3 Step 4
Step 5
Step 6 Step 7
Remove Flow
Adapter Cap
Remove
Screws
Remove
Front
Cover
Disconnect
Electrical
Connector
Remove Old
Sensor from
Cover by
Unscrewing
CCW
Replace
with New
Sensor
Reconnect
Electrical
Connector
Reinstall
Screws
Replace
Front Cover
- Do Not
Pinch Wires
Turn Analyzer
On
Perform Air
Calibration
Note: Reversing
Polarity Will Cause
Display to Read
Negative

Pro O
2TM
Oxygen Analyzer
NUVAIR Page 19
Pro O
2
Oxygen Analyzer Operation Manual
The following pictures illustrate the steps required to replace the Sensor in the Pro O
2
Remote
when Installed on a Nuvair Nitrox Generator or Nitrogen Generator.
Pro O
2
Remote
TM
Step 1 Step 2
Step 3 Step 4
Disconnect
Electrical
Cord from
Sensor
Remove and
Replace Old
Sensor
Reconnect
Electrical
Cord to
Sensor
Turn
Analyzer On
Perform Air
Calibration

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2TM
Oxygen Analyzer
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Pro O
2
Oxygen Analyzer Operation Manual
6.0Spares and Accessories
6.1.Oxygen Sensors
Order the replacement Sensor closest in appearance to your existing Sensor.
Pro O
2 TM
Pro O
2
Remote
TM
6.2.Flow Restrictors and Regulators (Pro O
2 TM
)
A variety of Flow Restrictors and Pressure Regulators
for the Sample Flow Method are available from Nuvair,
all calibrated to produce a flow rate of 1 – 5 L/min with
a Regulator output of 100 – 160 P.S.I.
Universal Flow Restrictors are used for most
applications and are typically provided complete with
Regulator.
When analyzing Scuba Cylinder gases, special Flow
Restrictors can be used to obtain the sample gas
directly from the BC inflator hose. A variety of BC
Flow Restrictors are available to fit the different types
of inflator hose QD fittings used.
Pressure
Reducing
Regulator
Standard Flow Restrictor
Part - 9518-STD
Mares
TM
Flow Restrictor
Part – 9518-MARES
ScubaPro
TM
Flow Restrictor
Part – 9518-SCUBAPRO
Part No. 9510
Part No. 9505
Part No. 9506
HP Regulated Flow Restrictor
Part No. 9520-Int
Universal
Flow
Restrictor
¼” FNPT Flow Restrictor
Part - 9517
Part No. 9519
HP Regulated Flow Restrictor
Part No. 9520-DIN