Operation Manual
Pro Trio Analyzer
O2/CO/CO2 Analyzer
Rev. 08.17
Pro Trio Analyzer Manual
If you have any questions on this equipment please contact Technical Support at:
Nuvair
1600 Beacon Pl
Oxnard, CA 93033
Phone: 805-815-4044
FAX: 805-486-0900
info@nuvair.com
Email:
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.
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Table of Contents
Introduction ................................................................................................................................................5
1.0 System Description .......................................................................................................................6
1.1 Identification of Analyzer Components...........................................................................................7
2.0 Individual Specifications of the Analyzers ..............................................................................9
2.1 Oxygen Sensor: ................................................................................................................................9
2.1 Carbon Monoxide Sensor: ...............................................................................................................9
2.2 Carbon Dioxide Sensor: ...................................................................................................................9
3.0 Requirements for Operation of Analyzer Trio ......................................................................10
3.1 Gas Flow ........................................................................................................................................10
3.2 AC Power .......................................................................................................................................10
3.3 Gas Sensors....................................................................................................................................10
4.0 Calibration ......................................................................................................................................11
5.0 Operation of Analyzer Trio ........................................................................................................12
5.1 Turning on Analyzers: ....................................................................................................................12
5.2 Threshold Alarms...........................................................................................................................14
Each Analyzer has independent threshold alarms that are user programmable. ...................................14
5.3 Powering off ..................................................................................................................................14
Hold down the On/Off button for a couple of seconds on each of the analyzers in the Analyzer Trio.
The Analyzer will display “OFF” and then go blank. ................................................................................14
6.0 Factory Reset ................................................................................................................................14
7.0 Maintenance ..................................................................................................................................15
7.1 Analyzer Care .................................................................................................................................15
7.2 Battery Replacement .....................................................................................................................16
7.3 Sensor Replacement ......................................................................................................................16
8.0 Programming of the Analyzers in the Analyzer Trio ..........................................................16
9.0 Pro O2 Alarm Analyzer ................................................................................................................17
9.1 Pro O2 Analyzer Controls ...............................................................................................................18
9.2 O2 Analyzer Alarm .........................................................................................................................18
9.3 O2 Analyzer Sensor ........................................................................................................................18
9.4 Pro O2 Calibration Methods ..........................................................................................................19
9.5 Pro O2 Analyzer Operation............................................................................................................20
9.6 Programming Procedures ..............................................................................................................21
9.7 Alarm Setting (AL 1 & Al 2) ...........................................................................................................22
9.8 Full Scale Value Setting (FSC) ........................................................................................................22
9.9 Calibration Oxygen Value (O2c) ....................................................................................................22
9.10
Threshold Alarms .......................................................................................................................23
9.11
Powering on and warming up....................................................................................................23
9.12
Powering Off ..............................................................................................................................24
9.13
Factory Reset .............................................................................................................................24
10.0
Pro CO2 Carbon Dioxide Analyzer .......................................................................................24
10.1
Pro CO2 Controls ........................................................................................................................25
10.2
Pro CO2 Display ..........................................................................................................................25
10.3
Pro CO2 Alarm ............................................................................................................................26
10.4
Pro CO2 Sensor ...........................................................................................................................26
10.5
Pro CO2 Calibration ....................................................................................................................26
10.6
Pro CO2 Operation .....................................................................................................................27
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10.7
Pro CO2 Sample Flow Method of Checking Calibration (Preferred) ..........................................28
10.8
Pro CO2 Programming Procedures.............................................................................................29
10.9
Pro CO2 Alarm Setting (AL 1 & AL 2) ..........................................................................................30
10.10 Pro CO2 Full Scale Value Setting (FSC) .......................................................................................30
10.11 Pro CO2 Threshold Alarms .........................................................................................................30
10.12 Pro CO2 Powering Off.................................................................................................................31
10.13 Pro CO2 Factory Reset ................................................................................................................31
10.14 Pro CO2 Sensor Replacement.....................................................................................................31
11.0
Pro CO Carbon Monoxide Analyzer.....................................................................................32
11.1
Pro CO Analyzer Controls...........................................................................................................33
11.2
Pro CO Display............................................................................................................................33
11.3
Pro CO Alarm .............................................................................................................................33
11.4
Pro CO Sensor ............................................................................................................................33
11.5
Pro CO Calibration .....................................................................................................................33
11.6
Pro CO Operation .......................................................................................................................34
11.7
Pro CO Sample Flow Method of Checking Calibration ..............................................................36
11.8
Pro CO Programming Procedures ..............................................................................................37
11.9
Pro CO Alarm Setting (AL 1 & Al 2) ............................................................................................38
11.10 Full Scale Value Setting (FSC) .....................................................................................................38
11.11 Conversion Value of Carbon Monoxide Sensor (nA) .................................................................38
11.12 Gain Factor (Fct).........................................................................................................................39
11.13 Pro CO Threshold Alarms ...........................................................................................................40
11.14 Powering Off the Pro CO............................................................................................................40
11.15 Pro CO Factory Reset .................................................................................................................40
11.16 Pro CO Sensor Replacement ......................................................................................................40
11.17 Handling Pro CO Sensors ...........................................................................................................41
12.0
Spares and Accessories .................................................................................................................42
12.1
Calibration Equipment ...............................................................................................................42
12.2
Replacement Sensors.................................................................................................................42
12.2.1 O2 Replacement Sensor P/N 9507 .........................................................................................42
12.2.2 CO Replacement Sensor P/N 9501.........................................................................................42
12.3
Flow Restrictors and Regulators ................................................................................................43
13.0
Troubleshooting .......................................................................................................................43
14.0
Relay Output Schematics .......................................................................................................44
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Introduction
This manual will assist you in the proper set-up, operation and maintenance of the Analyzer
Trio. 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:
This indicates an imminently hazardous situation, which if not avoided, will result in
serious personal injury or death.
This indicates a potentially hazardous situation, which if not avoided, could result in
serious personal injury or death.
This 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.
This notifies people of installation, operation or maintenance information which is
important but not hazard-related.
Warnings
Graphics
Defined:
Gas Inhalation
Abbreviations commonly used in this manual:
CO
Carbon Monoxide
CO%
Carbon Monoxide Percentage of Gas
PPM
Parts Per Million
PSI
Pounds Per Square Inch
HT
High Temperature
Skin damage
O2
LP
HP
L/min
ATM
Oxygen
Low Pressure
High Pressure
Liters Per Minute
Atmospheric Pressure
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1.0System Description
The Nuvair Analyzer Trio measures Oxygen (O2), Carbon Dioxide (CO2), and Carbon
Monoxide (CO) levels in supplied gases. All Analyzers are in a water resistant, impact resistant
case with a clear cover that allows for viewing of all gas displays, visual alarms and easy
access to analyzer controls. This unit is compatible with outdoor and marine environments.
The internal sensors are plumbed together to monitor a single input. Pressurized gases must be
regulated down to atmospheric pressure to avoid damage to the analyzer. The sample flow
rate must be between 1.0 to 5.0 L/min for an accurate reading.
The Analyzer Trio has visual and optional audible alarms for each of the gases monitored. An
audible alarm will sound if any alarm set point is reached.
All analyzers must be calibrated with an appropriate certified calibration gas before operation.
Battery powered units will come equipped with a Lithium battery and dedicated charger. The
Lithium battery charger may also be used as a constant power source. If the user chooses to
use the charger as a power source for an extended period, it is recommended that the Lithium
battery be disconnected from the analyzers to avoid battery damage.
This analyzer is designed for use at atmospheric pressures only. It is not designed for
exposures in a hyperbaric chamber. Use of this analyzer in a hyperbaric chamber will
result in incorrect readings and may damage the unit.
Although the Analyzer is a rugged instrument, careless handling or abuse may result
in damage to the Analyzer components resulting in inaccurate gas analysis. Inaccurate
gas analysis can lead to serious personal injury or death.
Extreme Gas exposure levels directed at the Analyzer sensors may damage the
sensors.
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1.1
Identification of Analyzer Components
Program
Button
Oxygen
Analyzer
Display
Adjust
Button
Oxygen
Analyzer
Alarm Light
On/Off
Button
Carbon
Dioxide
Analyzer
Display
Carbon
Monoxide
Analyzer
Display
Carbon
Dioxide
Analyzer
Alarm Light
Carbon
Monoxide
Alarm Light
Gas In
Audible Piezo Alarm
A/C Power Input
(Optional)
Front Cover Locks
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CO2 Sensor
Send to Nuvair for
replacement
CO Sensor
P/N 9501
Oxygen Sensor
P/N 9507
Lithium Battery
(Optional)
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2.0 Individual Specifications of the Analyzers
Note: All specifications are at ambient / sea level, 77°F / 25°C. Decreased Accuracy when operated out of range or in
inconsistent environmental conditions.
2.1 Oxygen Sensor:
Sensor Type: ..................................................
Expected Sensor Life, Room Air: ...................
Range:............................................................
Accuracy: .......................................................
Response Time (T90): ....................................
Drift: ..............................................................
Operating Temperature: ...............................
Storage Temperature: ..................................
Linearity Error: ..............................................
Influence of Humidity:...................................
Operating Pressure: ......................................
Humidity (non-condensing): .........................
Galvanic Cell type w/ 3.5mm Molex Jack connect
2 Years
0 - 100.0% Oxygen (0-1 ATA PPO2)
+/- 1%
< 6 Seconds
< 1% Volume O2 /month @ ATM
32-104°F (0-40°C) Decreased Accuracy when out of range
41 to 86°F (5 to 30°C)
= 2% @ 100% O2 applied for 5 min.
-0.03% rel. O2 reading/%RH
Not to Exceed One Atmosphere Absolute (0 PSI)
up to 99% RH
2.1 Carbon Monoxide Sensor:
Sensor Type: ..................................................
Expected Sensor Life, Room Air: ...................
Range:............................................................
Accuracy (Resolution): ..................................
Response Time (T90): ....................................
Drift: ..............................................................
Operating Temperature: ...............................
Storage Temperature: ...................................
Operating Pressure: ......................................
Humidity: .......................................................
Electrochemical
2 Years
0 – 100 ppm CO
1 ppm
< 50 Seconds
<5% per annum
41 - 104°F (5 - 40°C) Decreased Accuracy when out of range
14 - 140°F (-10 - 60°C)
Not to Exceed One Atmosphere Absolute (0 PSI)
15 - 90% Continuous, 0 - 99% Intermittent
2.2 Carbon Dioxide Sensor:
Sensor Type: ..................................................
Expected Sensor Life, Room Air: ...................
Range:............................................................
Accuracy (Resolution): ..................................
Warm Up: ......................................................
Response Time (T90): ....................................
Drift: ..............................................................
Operating Temperature: ...............................
Storage Temperature: ...................................
Operating Pressure: ......................................
Humidity: .......................................................
Nondispersive Infrared (NDIR) sensor
2 Years
0 – 2000 ppm CO2
50 at 0 to 1000 ppm & 100 at 1000 ppm to full scale
1-10 min +/- 0.2% of range
< 30 Seconds (1-10 min Warm up)
+/- 1% / month @ 60°C (68°F) ambient
41-104°F (5-40°C) Decreased Accuracy when out of range
14-140°F (-10 to 60°C)
Not to Exceed One Atmosphere Absolute (0 PSI)
15 - 90% Continuous, 0 - 99% Intermittent
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3.0 Requirements for Operation of Analyzer Trio
The Analyzer Trio will require the following connections.
1. Constant gas flow reduced to 1.0 to 5.0 L/min at ATA.
2. Either proper electrical supply to the cord for non-battery units, or 110Volt, 60Hz AC
Outlet to power the lithium battery charger if so equipped.
3.1 Gas Flow
Before using the Analyzer Trio you must connect the analyzer to your
compressor system by diverting regulated gas to the analyzer. This will
require the use of a flow restrictor to reduce the gas to 1.0 – 5.0 L/Min
input. Nuvair sells 3 L/Min flow restrictors for this purpose. See Spares
and Accessories section.
3.2 AC Power
Use the provided AC power supply to plug into 110V power.
For lithium battery powered analyzers, the battery charger may be used as a constant power
supply. It is recommended that should the user choose to do this, the lithium battery should be
disconnected from the system to avoid damage to the cells.
3.3 Gas Sensors
The Analyzer Trio uses three individual analyzers and sensors to measure content in gases of
O2, CO2 and CO. The O2, CO2 and CO Sensors are disposable and user-replaceable. The life
expectancy of the O2 sensor is 3 years. The life expectancy of the CO sensor is 4 years. The
life expectancy of the CO2 sensor is 5 years. The Sensors are designed for use at atmospheric
pressure. The sample gas mixture to be analyzed must be regulated and any potential pressure
or vacuum must be avoided. Vibration, oil, moisture and particles (contamination) will shorten
the life expectancy of sensors.
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4.0 Calibration
Analyzer calibration must be verified on a daily basis. Improper calibration may result in an
incorrect reading, delivering inaccurate levels of gas being monitored.
Nuvair offers two gas testing kits for the Analyzer Trio. A Helium free gas is
recommended. See addendum for more information.
Flow Restrictor/
Regulator Assembly
Nuvair Calibration Gas Specs:
CO 10 ppm
CO2 1000 ppm
Nitrogen Balance
Analyzer calibration must be verified on a daily basis. Improper calibration may result in
an incorrect reading, delivering inaccurate levels of gases or moisture being monitored.
This Analyzer must always be checked with a calibration gas and used with gases
regulated and supplied at atmospheric pressure (0 PSI). Use of gases at higher
pressures may result in incorrect readings and may damage the Analyzer. Inaccurate gas
analysis can lead to serious personal injury or death.
Checking 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 checking calibration.
Verify calibration on a daily basis. Breathing gas applications require the use of a certified
calibration gas with no moisture concentration and flow rate of 1.0-5.0 L/min. The equipment to
produce this flow is available from Nuvair. See Spares and Accessories section.
To assure the greatest accuracy for other applications, use the calibration gas concentration
closest to the expected concentration in the gas being measured.
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5.0 Operation of Analyzer Trio
5.1 Turning on Analyzers:
1) Attach a 1.0 to 5.0 L/min flow of ambient air using the battery powered air pump or
sample flow from a compressor pumping only ambient air, or calibration gas with a 21%
O2 mixture to the Analyzer Trio. This is necessary for the Pro O2 Analyzer to calibrate
accurately at startup.
If no other method is available, use a short length of neoprene hose attached to the air
input to suck air backward across the sensors. This will draw fresh ambient air into the
enclosure. DO NOT blow into the tube as expelled breath contains lower oxygen content
and will cause improper calibration.
2) Turn on each analyzer by holding down the On/Off button until the display shows the
startup cycle.
3) Monitor for the low battery warning on battery powered units. Turn off the analyzers, plug
in the battery charger, and turn the analyzers back on if the battery warning appears.
4) Once fully cycled, the screens should display digits.
Low Battery
Indication
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5) The values on the displays will continue to change until they settle on the readings for the
current gas. Each of the Analyzers performs independently, and will display data in
accordance to their individual readings. User must read and consult the instructions for
each analyzer section in this manual to understand responses of each analyzer.
6) If verifying calibration, you may now attach the calibration test gas and verify the readings are
appropriate for the test gas mix (recommended is 1000ppm CO2, 10ppm CO, 40% O2, Nitrogen
balance provided by Nuvair).
a. If the values do not coincide with the test gas mix, refer to individual analyzer instructions
for calibration and troubleshooting.
Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any
gas stream to be directed at any part of your body.
Never expose the sensor to pressures above atmospheric pressure or you may cause
damage to the sensor and/or receive false readings. Damaged Sensors will not provide
accurate gas analysis. Inaccurate gas analysis can lead to serious personal injury or
death.
It is very important that the calibration take place at atmospheric pressure and with
calibrated test gas that has no moisture in it.
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5.2
Threshold Alarms
Each Analyzer has independent threshold alarms that are user programmable.
User should confirm that each of the threshold alarms programmed in the analyzers
matches the desired value of the gas to be analyzed.
5.3
Powering off
Hold down the On/Off button for a couple of seconds on each of the analyzers in the
Analyzer Trio. The Analyzer will display “OFF” and then go blank.
Screen
Example
6.0 Factory Reset
In case it is necessary to reset any of the analyzers to their factory settings, follow the
instructions outlined in the manual for the specified analyzer.
Resetting the Analyzer will result in all user programmed alarms and calibration being
erased and set at factory defaults.
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7.0 Maintenance
7.1
Analyzer Care
Analyzers immersed in liquid or stored in wet environments may not operate properly.
This may result in incorrect readings. Incorrect gas analysis may result in personal
injury or death.
Protect the analyzer from excessive shock and impact. Excessive shock and impact may
result in incorrect readings. Incorrect gas analysis may result in personal injury or
death.
Protect the analyzer from exposure to hyperbaric environments. Exposure to hyperbaric
environments may result in incorrect readings. Incorrect gas analysis may result in
personal injury or death.
•
•
•
•
•
Do not clean Analyzer with anything other than a damp soft cloth.
Do not immerse 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.
Do not use the Analyzer in a hyperbaric environment.
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7.2
Battery Replacement
Be sure to dispose of spent, leaking, or damaged Battery properly, according to local
regulations.
The following pictures illustrate the steps required to replace the batteries in the Analyzer.
Battery has two
Velcro strips holding
it in place
1. Unplug battery
2. Pull battery away from housing
3. Replace with Nuvair supplied battery.
7.3 Sensor Replacement
The Analyzer Trio has two user changeable sensors The O2 and CO sensors. These
sensors have various life expectancies and should be replaced immediately if accuracy is of
concern.
The CO2 sensor is currently not user replaceable and the unit must be shipped to Nuvair for
service.
If damage occurs, send the analyzer back to Nuvair for inspection and Nuvair will determine
if the unit can be repaired or needs to be replaced.
8.0 Programming of the Analyzers in the Analyzer Trio
The proceeding sections will outline the operation of each of the individual analyzers. There are
similarities in how each of the analyzers operate and are programmed. Take extra care in
reading the sections especially the alarm settings as each has a different program for tripping
the alarms. In some cases the alarms are tripped upon reaching the set value and in others the
alarm is tripped until the set value is reached. Refer back to the section associated to the
analyzer you are programming whenever possible to confirm the proper alarm settings are being
programmed.
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9.0 Pro O2 Alarm Analyzer
The Pro O2 AlarmTM Oxygen analyzer measures oxygen (O2) levels in gases in the range of 0.0
to 100%. The Analyzer is designed to verify O2 concentration in stored gas cylinders, enclosed
spaces and with compressors pumping nitrox. 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.
The Analyzer is includes an internally mounted Sensor
with audible and visual alarms. Large Digital Display
and controls are environmentally sealed.
The Analyzer uses a regulated flow of gas within the
analyzer to deliver sample gas to the sensor.
Pressurized gases must be regulated to avoid damage
to the analyzer. Use of this Analyzer in a hyperbaric
chamber will void the owner’s warranty.
The Analyzer comes in a high impact storage case. It
is ready for use after calibration with appropriate
certified calibration gases.
Alarm Light
Display
On/Off
Programming
buttons
This analyzer is designed for use at atmospheric pressures only. It is not designed for
exposures in a hyperbaric chamber. Use of this analyzer in a hyperbaric chamber will
result in incorrect readings and may damage the unit.
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.
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9.1
Pro O2 Analyzer Controls
Alarm
Light
Alarm Light
Activated
Alarm Visual
on Display
Digital
Display
Program Button
On/Off Button
Adjust Button
9.1. O2 Analyzer Display
Active Oxygen
Reading
0 – 100 %
In .1% increments
9.2 O2 Analyzer Alarm
The Analyzer includes an audible alarm that is activated when the sensor reaches a user
programmed minimum % of oxygen and maximum % of oxygen. The alarm will not clear
until the concentration of O2 moves into the threshold programmed by the user.
9.3 O2 Analyzer Sensor
The Analyzer uses an electrochemical O2 sensor to measure O2 content in gases. The
sensor is disposable and user-replaceable, with a life expectancy of up to 24 months
depending on usage. The sensor is designed for use at atmospheric pressure (0 P.S.I.). The
gas mixture to be analyzed must be regulated accordingly, and any potential for pressure or
vacuum must be avoided.
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9.2. O2 Analyzer Calibration
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.
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.
If the Analyzer has been subjected to a recent change in ambient temperature, allow it to
stabilize for one hour before checking calibration.
During the warm up time if the oxygen percentage of the mixed gas flow is different from
the value of calibration set in the instrument, a failed calibration is obtained and a wrong
analysis value will be displayed.
9.4 Pro O2 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, or dry air must be used for calibration. It may be
required for the analyzer to be auto calibrated to a certified calibration gas.
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.
To assure the greatest accuracy for other applications, use the calibration gas concentration
closest to the expected concentration in the gas being measured.
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9.5 Pro O2 Analyzer Operation
Prior to each Analyzer use:
1) Connect the sensors flow adaptor to the gas. Before switching on and during the warm
up gas must be flowing over sensor for proper calibration. The flow rate of gas must
equal 1.0 – 5.0 L/min. To produce this flow, a Flow Restrictor and Regulator may be
required. See Spares and Accessories section.
2) Turn unit on by holding on/off button until display shows “On”, after that the “Att” (Wait)
message will be displayed for about 4 seconds, then the sensor auto-calibration
procedure is started.
3) The auto-calibration last about 5 seconds; during this time the display will show the
message “CAL” and “Att” alternatively. Be sure during this time the exposed to the gas
mix with oxygen percentage as programmed in the O2c (calibration) parameter (SEE
PROGRAMMING PROCEDURE). By default, for simplicity, the O2c value is set at 21%
that corresponds to the percentage of Oxygen in free air.
4) At the end of the warm up and calibration, the display will continuously show the oxygen
content of the gas flow. The instrument is now ready to read oxygen concentration of the
gas.
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Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any
gas stream to be directed at any part of your body.
Tip: You can check the battery life and current temperature by holding Adjust button for 3
seconds. The display will alternate from battery life to current temperature (Celsius) twice before
returning the home screen.
Never expose the sensor to pressures above atmospheric pressure (0 P.S.I.) or you may
cause damage to the sensor and/or receive false readings. Damaged Sensors will not
provide accurate gas analysis. Inaccurate gas analysis can lead to serious personal
injury or death.
9.6 Programming Procedures
Keep the “Pro” button pressed for more than two seconds and then release the button.
“Pr” should display for two seconds and then the display will change to AL 1 and alternate
with the 3 digit set value.
It is possible to program:
o AL 1 Minimum alarm point expressed in % of oxygen concentration
o AL 2 Maximum alarm point expressed in % of oxygen concentration
o FSC Value expressed in % of oxygen concentration corresponding to the current
output full scale value (20mA). 20mA always correspond to 100 % oxygen
concentration.
o O2c Oxygen sensor calibration point
At the end of the programming procedure the display will show “End” and the instrument
will display the oxygen content of the gas mix.
Below are the actual screen views of each of the modes.
Program
Full Scale Value
First Alarm
Oxygen Sensor
Calibration
Second Alarm
21% reading
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9.7 Alarm Setting (AL 1 & Al 2)
1.) Press the “Pro” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL1” will appear and be ready
for changing the value of the first alarm point. After a second the display will show the
value of “AL1” O2% (0% default) current setting.
2.) The blinking digit shows the cursor position.
3.) Press the “Pro” button to increase the value (from 0 to 9)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the O2% value, press the “On/Off” button. You will
then automatically jump to “AL 2” programming view.
6.) Repeat steps 3 through 5 to modify and save the “AL 2” O2% desired value (100%
default).
7.) Once programming of “AL 2” is complete you will be in the “FSC” Value Screen and
ready for programming this value. To jump to the end continue to press the “On/Off”
button until the end screen appears.
9.8 Full Scale Value Setting (FSC)
Once the alarms have been set the Pro O2 Alarm Analyzer goes to “FSC” view so that you
can change the analog full scale value. It is not necessary to modify this value which is
factory set at 100. This is the Oxygen concentration corresponding to 20 mA on the analog
output. 4mA is the value at 0% of Oxygen. This value can be changed in the same manner
as the Alarm settings:
1.) Press the “Pro” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL 1” will appear. Press the
On/Off button to cycle through the Alarm settings until you reach the “FSC” view. The
“FSC” screen and a 3 digit value will alternate for a few seconds and the Pro O2 Alarm
Analyzer will be ready for adjusting the “FSC” Value.
2.) The blinking digit shows the cursor position.
3.) Press the “Pro” button to increase the value (from 0 to 9)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the FSC value, press the “On/Off” button. You will
then automatically jump to “O2c” programming view. To continue pass this to the end
press the On/Off button until the “End” screen appears.
9.9 Calibration Oxygen Value (O2c)
After the “O2c” is set the Pro O2 Alarm Analyzer goes to “O2c”, this is the current Oxygen
calibration value default is 21%. It is not necessary to modify this value. The display
alternates between “O2c” and the current value (21% default).
Press the “Pro” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL 1” will appear. Use the
On/Off button to cycle through the various settings until you reach the “O2c” screen.
The 3 digit value will alternate with the “O2c” screen for a few seconds and the Pro O2
Alarm Analyzer will be ready for adjusting the “O2c” Value.
1.) The blinking digit shows the cursor position.
2.) Press the “Pro” button to increase the value (from 0 to 9)
3.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
4.) To complete your entry and save the O2c value, press the “On/Off” button. You will
then automatically jump to the “End” screen.
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The oxygen calibration value will be the same value of the calibration set when the
instrument is switched on. During the warm up time if the oxygen percentage of the gas
flowing across the sensor is a different value of calibration set in the instrument, a failed
calibration is obtained and the wrong gas percentage will be displayed. Wrong oxygen
analysis may lead to death.
The calibration value of the Pro O2 alarm is factory set at 21% and any adjustments to
this value will change the analyzers ability to properly ready the % of oxygen in a gas. A
wrong value in this parameter will give a wrong reading of O2 concentration and the
instrument will not be accurate. All the analysis concentration shown on the display will
be wrong. If you modify this setting you must test the analyzer for accuracy with certified
testing gas. Do not modify this value. Wrong oxygen analysis may lead to death.
9.10 Threshold Alarms
Should the Oxygen reading go over the threshold alarms (AL1 or AL2) the instrument will go into
alarm mode and will activate the (optional) relays output (open collector max 100mA) and the
internal buzzer. The display will show the trespassed alarm and the actual measured value. To
stop the audible alarm, press any key. In this event the Pro O2 alarm Analyzer will remain in
alarm mode until the analyzed value goes below the alarm.
The relay output typically is used to shut down the compressor. Nuvair can supply the
necessary components to adapt your compressor to the relay or provide them at the time of
install on a new compressor.
9.11 Powering on and warming up
Press the On/Off button for more than one second, until the display shows “on”, after that the
“Att” (wait) message will be displayed for about 4 seconds, then the sensor auto-calibration lasts
about 5 seconds; during this time the display will show the messages ”CAL” and “Att”
alternatively.
Be sure that during this time the sensor is exposed to the gas mix with the oxygen percentage
as programmed in the “O2c” parameter (see programming procedure). By default the parameter
is set at 21% by default that corresponds to the percentage of oxygen in free air, be sure that
the air flow at this time across the sensor is 21% oxygen before turning on the analyzer.
During the warm up time if the oxygen percentage of the gas flowing across the sensor is
a different value of calibration set in the instrument, a failed calibration is obtained and
the wrong gas percentage will be displayed. Wrong oxygen analysis may lead to death.
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9.12 Powering Off
At the home or gas reading screen, hold down the On/Off button
for a couple of seconds. The Analyzer will display “OFF” and then go blank.
9.13 Factory Reset
In case it is necessary to reset the Pro O2 Alarm Analyzer to the factory settings, power on the
Analyzer pressing at the same time for more than one second the “On/Off” and “Adjust” buttons.
On the display will appear “res” and the instrument will go to the reading page.
In case of reset, the instrument will delete all the alarms settings, the full scale value, and
any new conversion value of Oxygen sensor will be reset to factory settings. Before
using again the instrument, it may be necessary to program again the alarm values, the
full scale value, and the Oxygen sensor calibration if changed. All the analysis
concentration shown on the display would be wrong. Wrong Oxygen analysis may lead
to death.
Resetting the Analyzer will result in all user programmed alarms and calibration being
erased and set at factory defaults.
10.0 Pro CO2 Carbon Dioxide Analyzer
The Pro CO2 Carbon Dioxide Analyzer measures Carbon Dioxide (CO2) levels in gases in the
range of 0 to 2000 parts per million (ppm). It can be used to measure the CO2 content in all
breathing gas mixes. The Analyzer is designed to verify CO2 concentration in stored gas
cylinders as well as to monitor continuous flow of sample gas from a compressor.
Carbon Dioxide is a colorless, odorless, tasteless gas that will not support
life. Exposure to Carbon Dioxide can lead to unconsciousness and death.
The Analyzer is includes an internally mounted Sensor
with audible and visual alarms. Large Digital Display
Alarm Light
and controls are environmentally sealed.
The Analyzer uses regulated flow within the analyzer
to deliver sample gas to the sensor. Pressurized
gases must be regulated to avoid damage to the
analyzer. Use of this Analyzer in a hyperbaric
chamber will void the owner’s warranty.
Display
The Analyzer comes in a high impact storage case. It
is ready for use after calibration with an appropriate
certified calibration gas.
On/Off
Programming
buttons
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This analyzer is designed for use at atmospheric pressures only. It is not designed for
exposures in a hyperbaric chamber. Use of this analyzer in a hyperbaric chamber will
result in incorrect readings and may damage the unit.
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.
High gas flow directed at the CO2 Analyzer sensor may damage the sensor.
10.1 Pro CO2 Controls
Alarm
Light
Alarm Light
Activated
Alarm Visual
on Display
Digital
Display
Program Button
On/Off Button
Adjust Button
10.2 Pro CO2 Display
Carbon Dioxide
Reading
0 – 2000 ppm
In 1 ppm
increments
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10.3 Pro CO2 Alarm
The Analyzer includes an audible alarm that is activated when the Sensor reaches 199 ppm
CO2 or user programmed level. The alarm will not clear until the concentration of CO2 drops
below user programmed level.
10.4 Pro CO2 Sensor
The Analyzer uses an NDIR “non-dispersive infra red” CO2 Sensor to measure CO2 content in
gases. The Sensor is only replaceable by the factory, so the unit must be shipped to Nuvair for
service. The Sensor is designed for use at atmospheric pressure (0 P.S.I.). The gas mixture to
be analyzed must be regulated accordingly, and any potential for pressure or vacuum must be
avoided.
10.5 Pro CO2 Calibration
Analyzer calibration must be verified on a weekly basis or when moisture and or
temperature swings take place. Improper calibration may result in an incorrect reading,
exposing the user to dangerous levels of Carbon Dioxide. Exposure to Carbon Dioxide
can lead to unconsciousness and death.
This Analyzer must always be checked against a calibration gas and used with gases
regulated and supplied at atmospheric pressure (0 P.S.I.). Use of gases at higher
pressures may result in incorrect readings and may damage the Analyzer. Incorrect
readings may expose the user to high levels of Carbon Dioxide resulting in personal
injury or death.
Checking 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 checking calibration.
Verify calibration on a weekly basis or when the ambient temperature or moisture changes
dramatically. Breathing gas applications require the use of a certified CO2 calibration gas and
flow rate of 1.0-5.0 L/min. The equipment to produce this flow is available from Nuvair. See
Spares and Accessories section.
To assure the greatest accuracy for other applications, use the calibration gas concentration
closest to the expected concentration in the gas being measured.
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10.6 Pro CO2 Operation
Prior to each Analyzer use:
Turn unit on (hold on/off for 3 sec) and monitor Display for low battery warning. Replace
battery immediately if warning appears. The display will count down from 29 PPM to Att
and then display the current CO2 level sensed by the analyzer sensor.
Low Battery
Indication
Ready For
Gas Analyzing
Cycle through the current settings of the analyzer:
a. Hold down the “Prog” button for 2 seconds then use the “On/Off” button to cycle
through the low Alarm Value, high Alarm Value, Full Scale Value and end.
b. Adjust Alarm values at this time if needed see “11.9. Pro CO2 Alarm Settings”
Check Calibration of Analyzer using “Calibrated Test Gas”
Tip: You can check the battery life and current temperature by holding Adjust button for 3
seconds. The display will alternate from battery life to current temperature (Celsius) twice before
returning the home screen.
Do not test cylinders suspected of containing carbon dioxide in a confined
space that does not have good ventilation. Exposure to carbon dioxide can
lead to unconsciousness and death.
Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any
gas stream to be directed at any part of your body.
Never expose the sensor to pressures above atmospheric pressure (0 P.S.I.) or you may
cause damage to the sensor and/or receive false readings. Damaged Sensors will not
provide accurate gas analysis. Inaccurate gas analysis can lead to serious personal
injury or death.
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The Pro CO2TM can be used to monitor an enclosed space or to analyze a regulated gas sample
flow, the contents of a gas cylinder, or the flow from a regulator:
•
•
If monitoring an enclosed space, simply remove the Flow Adapter Cap to expose the Sensor
face to the atmosphere and allow 15 seconds for the Display reading to stabilize.
If analyzing a gas flow, the Sample Flow Method is the preferred method. The flow rate
must equal 1.0-5.0 L/min at atmospheric pressure (1 bar). To produce this flow, a Flow
Restrictor and Regulator may be required. Contact Nuvair if you need assistance.
10.7 Pro CO2 Sample Flow Method of Checking Calibration (Preferred)
1) Turn on Analyzer with air only flowing through the
Analyzer Trio. Once the analyzer has stabilized you
can move on to step 2.
2) Turn the Analyzer off.
3) Attach a Certified calibration gas that best matches
The gas you will be using with the Analyzer Trio and Open
gas line to send a 1.0-5.0 L/min flow to the sensor.
4) Turn on the Analyzer and allow reading to stabilize.
Record reading and compare to test gas spec.
Once testing is complete and calibration is verified you are able to proceed with using the
analyzer.
Nuvair offers CO2 gas testing kits see addendum for more information.
Testing Gas must not contain Helium for calibration to succeed.
Flow Restrictor/
Regulator
Assembly
Nuvair
Calibration Gas
Specs:
CO 10 ppm
CO2 1000 ppm
Nitrogen Balance
1000 PPM CO2
Calibration Gas
Canister
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10.8 Pro CO2 Programming Procedures
Keep the “Prog” button pressed for more than two seconds and then release the button. “Pr”
should display for two seconds and then the display will change to AL 1 and alternate with
the 3 digit set value.
It is possible to program:
o AL 1 Low alarm point expressed in ppm of Carbon Dioxide concentration
o AL 2 High alarm point expressed in ppm of Carbon Dioxide concentration
o FSC Value expressed in ppm of Carbon Dioxide concentration corresponding to
the current output full scale value (20mA). 4mA always correspond to 1999 ppm
CO2 concentration.
At the end of the programming procedure the display will show “End” and the instrument
will display the Carbon Dioxide content in the gas mix.
Below are the actual screen views of each of the modes. (*Calib button say as adjust)
Program
Full Scale Value
Low Alarm
High Alarm
End
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10.9 Pro CO2 Alarm Setting (AL 1 & AL 2)
1.) Press the “Prog” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL1” will appear and be ready
for changing the value of the low alarm point. After a second the display will show the
value of “AL1” CO2 ppm current setting.
2.) The blinking digit shows the cursor position.
3.) Press the “Prog” button to increase the value (from 0 to 9)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the CO2 ppm value, press the “On/Off” button. You
will then automatically jump to “AL 2” programming view.
6.) Repeat steps 3 through 5 to modify and save the “AL 2” high alarm CO2 ppm desired
value.
7.) Once programming of “AL 2” is complete you will be in the “FSC” Value Screen and
ready for programming this value. To jump to the end continue to press the “On/Off”
button until the end screen appears.
10.10 Pro CO2 Full Scale Value Setting (FSC)
Once the alarms have been set the Pro CO2 Analyzer goes to “FSC” view so that you can
change the analog full scale value. It is not necessary to modify this value which is factory
set at 1999. However if installing a new sensor the value on the sensor can be entered into
the “Fsc” setting and must be entered into the “Fct” setting. This is the Carbon Dioxide
concentration corresponding to 20 mA on the analog output. 4mA is the value at 1999 ppm
of Carbon Dioxide. This value can be changed in the same manner as the Alarm settings:
1.) Press the “Prog” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL 1” will appear. Press the On/Off
button to cycle through the Alarm settings until you reach the “FSC” view. The “FSC”
screen and a 3 digit value will alternate for a few seconds and the Pro CO2 Analyzer will
be ready for adjusting the “FSC” Value.
2.) The blinking digit shows the cursor position.
3.) Press the “Prog” button to increase the value (from 0 to 9) (0-19 on the third value)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the FSC value, press the “On/Off” button. You will
then automatically jump to “End” programming view.
10.11 Pro CO2 Threshold Alarms
The CO2 analyzer will alarm until it has reached the AL1 (low) set point if the AL1 has
been set. Once the gas is above the AL1 set point the analyzer will not alarm until the
gas value is over AL2 or under AL1 during the gas analysis. Should the Carbon Dioxide
gas trip the low or high alarms (AL1 or AL2) the instrument will go into alarm mode and
will activate the (optional) relays output (open collector max 100mA) and the internal
buzzer. The display will show the trespassed alarm and the actual measured value. To
stop the audible alarm, press any key. In this event the Pro CO2 Analyzer will remain in
alarm mode until the analyzed value reads between the AL1 and AL2 set points.
The relay output typically is used to shut down the compressor. Nuvair can supply the
necessary components to adapt your compressor to the relay or provide them at the time
of install on a new compressor.
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10.12 Pro CO2 Powering Off
At the home or gas reading screen, hold down the On/Off button for a couple of seconds.
The Analyzer will display “OFF” and then go blank.
10.13 Pro CO2 Factory Reset
In case it is necessary to reset the Pro CO2 Analyzer to the factory settings, power on the
Analyzer by pressing the “On/Off” and “Adjust” buttons at the same time. On the display
will appear “res” and the instrument will go to the reading page.
In case of reset, the instrument will delete all the alarms settings and the full scale value.
Before using again the instrument, it may be necessary to program again the alarm
values and the full scale value. All the analysis concentration shown on the display could
be wrong. Wrong Carbon Dioxide analysis may lead to death. You should calibrate your
analyzer immediately after a reset before using.
10.14 Pro CO2 Sensor Replacement
The sensor is not user replaceable. The unit must be shipped to Nuvair for service.
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11.0
Pro CO Carbon Monoxide Analyzer
The Pro COTM Carbon Monoxide Analyzer measures carbon monoxide (CO) levels in gases in
the range of 0 to 100 parts per million (ppm). Common uses for a CO analyzer are to measure
for CO contamination introduced into gas mixes from internal combustion engines or other
devices where CO is a byproduct. The Analyzer is designed to verify CO concentration in
stored gas cylinders and in the gas flow from a compressor.
Carbon monoxide is a colorless, odorless, tasteless gas that will not support
life. Exposure to carbon monoxide can lead to unconsciousness and death.
This analyzer utilizes an environmentallysealed internal sensor that samples gases
passing through the input. The operator is
notified by the digital display and the
audible and visual alarms.
A gas flow is required to deliver sample
gas to the sensor. Pressurized gases
must be regulated to avoid damage to the
analyzer. Use of this analyzer in a
hyperbaric chamber will void the owner’s
warranty.
Digital Display
On/Off
Programming
buttons
The Analyzer is ready for use after
calibration with an appropriate certified
calibration gas.
Alarm Light
This analyzer is designed for use at atmospheric pressures only. It is not designed for
exposures in a hyperbaric chamber. Use of this analyzer in a hyperbaric chamber will
result in incorrect readings and may damage the unit.
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.
Extreme CO exposure levels directed at the Analyzer sensor may damage the sensor.
Don’t test the sensor in the direct flow of any engine mufflers/exhausts or any other
known high concentrations of CO.
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11.1 Pro CO Analyzer Controls
Alarm Light
Digital
Display
On/Off Button
Program Button
Alarm Light
Activated
Alarm Visual
on Display
Adjust Button
11.2 Pro CO Display
Carbon Monoxide
Reading
0 – 100 ppm
In 1 ppm
increments
11.3 Pro CO Alarm
The Analyzer includes an audible alarm that is activated when the Sensor reaches 10 ppm
CO or user programmed level. The alarm will not clear until the concentration of CO drops
below 10 ppm or user programmed level.
11.4 Pro CO Sensor
The Analyzer uses an electrochemical CO Sensor to measure CO content in gases. The
Sensor is disposable and user-replaceable, with a life expectancy of up to 24 months
depending on usage. The Sensor is designed for use at atmospheric pressure (0 P.S.I.).
The gas mixture to be analyzed must be regulated accordingly, and any potential for
pressure or vacuum must be avoided.
11.5 Pro CO Calibration
Verify calibration on a weekly basis, or when the ambient temperature or moisture changes
dramatically. Breathing gas applications require the use of a certified CO calibration gas and
flow rate of 1.0-5.0 L/min. The equipment to produce this flow is available from Nuvair. See
Spares and Accessories section.
To assure the greatest accuracy for other applications, use the calibration gas concentration
closest to the expected concentration in the gas being measured.
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Analyzer calibration must be verified on a weekly basis. Improper calibration may result
in an incorrect reading, exposing the user to dangerous levels of carbon monoxide.
Exposure to carbon monoxide can lead to unconsciousness and death.
This Analyzer must always be checked against a calibration gas and used with gases
regulated and supplied at atmospheric pressure (0 P.S.I.). Use of gases at higher
pressures may result in incorrect readings and may damage the Analyzer. Incorrect
readings may expose the user to high levels of carbon monoxide resulting in personal
injury or death.
Checking 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 checking calibration.
Verify calibration on a weekly basis. Breathing gas applications require the use of a certified CO
calibration gas with a 10 ppm concentration and flow rate of 1.0-5.0 L/min. The equipment to
produce this flow is available from Nuvair. See Spares and Accessories section.
To assure the greatest accuracy for other applications, use the calibration gas concentration
closest to the expected concentration in the gas being measured.
11.6 Pro CO Operation
Prior to each Analyzer use:
1) Turn unit on (hold on/off for 3 sec) and monitor Display for low battery warning. Replace
battery immediately if warning appears. Once fully cycled the screen should read “000”
Low Battery
Indication
Ready For
Gas Analyzing
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2) Cycle through the current settings of the analyzer.
a. Hold down the “Prog” button for 2 seconds then use the “On/Off” button to cycle
through the 1st Alarm Value, 2nd Alarm Value, Full Scale Value, Conversion Value
of the Sensor, and Gain Factor.
b. Adjust Alarm values at this time if needed see “12.9. Pro CO Alarm Settings“.
3) Check Calibration of Analyzer using “Calibrated Test Gas”
Tip: You can check the battery life and current temperature by holding Adjust button for 3
seconds. The display will alternate from battery life to current temperature (Celsius) twice before
returning the home screen.
Do not test cylinders suspected of containing carbon monoxide in a
confined space that does not have good ventilation. Exposure to carbon
monoxide can lead to unconsciousness and death.
Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any
gas stream to be directed at any part of your body.
Never expose the sensor to pressures above atmospheric pressure (0 P.S.I.) or you may
cause damage to the sensor and/or receive false readings. Damaged Sensors will not
provide accurate gas analysis. Inaccurate gas analysis can lead to serious personal
injury or death.
It is very important that the calibration take place at atmospheric pressure (1 bar) and
roughly 68° F (20° C) with the surrounding air being clean of CO. Calibration performed in
air with CO such as aboard a moving boat with diesel exhaust or construction site with
diesel engines operating will affect the calibration. On a moving boat air flow can trap the
engine exhaust in the cabin or open deck area creating a high CO environment that will
affect calibration.
Low pressure where
CO can be pulled in
from the exhaust of the
boat engine.
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The Pro COTM can be used to analyze a regulated gas sample flow, the contents of a gas
cylinder, or the flow from a regulator:
• If analyzing a gas flow, the Sample Flow Method is the preferred method. The flow rate
must equal 1.0-5.0 L/min at atmospheric pressure (1 bar). To produce this flow, a Flow
Restrictor and Regulator may be required. Contact Nuvair if you need assistance.
11.7 Pro CO Sample Flow Method of Checking Calibration
Step 3. Allow 15
Seconds for Display
Reading to Stabilize
Step 4. Record
Reading while Gas is
Flowing
Nuvair offers CO gas testing kits see addendum for more information.
Testing Gas must not contain Helium for calibration to succeed.
Flow Restrictor/
Regulator
Assembly
10 PPM CO
Calibration Gas
Canister
Nuvair
Calibration Gas
Specs:
CO 10 ppm
CO2 1000 ppm
Nitrogen Balance
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11.8 Pro CO Programming Procedures
Keep the “Pro” button pressed for more than two seconds and then release the button. “Pr”
should display for two seconds and then the display will change to AL 1 and alternate with
the 3 digit set value.
It is possible to program:
o AL 1 First alarm point expressed in ppm of Carbon Monoxide concentration
o AL 2 Second alarm point expressed in ppm of Carbon Monoxide concentration
o FSC Value expressed in ppm of Carbon Monoxide concentration corresponding to
the current output full scale value (20mA). 4mA always correspond to zero ppm
CO concentration.
o nA Conversion value of Carbon Monoxide sensor
o Fct Gain factor
At the end of the programming procedure the display will show “End” and the instrument
will display the Carbon Monoxide content in the gas mix or “000” if not attached to a CO
gas mix.
Below are the actual screen views of each of the modes.
Program
Full Scale Value
First Alarm
Conversion Value of Sensor
Second Alarm
Gain Factor
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11.9 Pro CO Alarm Setting (AL 1 & Al 2)
1.) Press the “Prog” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL1” will appear and be ready
for changing the value of the first alarm point. After a second the display will show the
value of “AL1” CO ppm current setting.
2.) The blinking digit shows the cursor position.
3.) Press the “Prog” button to increase the value (from 0 to 9)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the CO ppm value, press the “On/Off” button. You
will then automatically jump to “AL 2” programming view.
6.) Repeat steps 3 through 5 to modify and save the “AL 2” CO ppm desired value.
7.) Once programming of “AL 2” is complete you will be in the “FSC” Value Screen and
ready for programming this value. To jump to the end continue to press the “On/Off”
button until the end screen appears.
11.10 Full Scale Value Setting (FSC)
Once the alarms have been set the Pro CO Analyzer goes to “FSC” view so that you can
change the analog full scale value. It is not necessary to modify this value which is factory
set at 300. However if installing a new sensor the value on the sensor can be entered into
the “Fsc” setting and must be entered into the “Fct” setting. This is the Carbon Monoxide
concentration corresponding to 20 mA on the analog output. 4mA is the value at 0 ppm of
Carbon Monoxide. This value can be changed in the same manner as the Alarm settings:
1.) Press the “Prog” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL 1” will appear. Press the
On/Off button to cycle through the Alarm settings until you reach the “FSC” view. The
“FSC” screen and a 3 digit value will alternate for a few seconds and the Pro CO
Analyzer will be ready for adjusting the “FSC” Value.
2.) The blinking digit shows the cursor position.
3.) Press the “Prog” button to increase the value (from 0 to 9)
4.)Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will be
used to cycle through the rest of the digits.
5.)To complete your entry and save the FSC value, press the “On/Off” button. You will
then automatically jump to “nA” programming view. To continue pass this to the end
press the On/Off button until the “End” screen appears.
11.11 Conversion Value of Carbon Monoxide Sensor (nA)
After the “FSC” is set the Pro CO Analyzer goes to “nA”, this is the conversion value of the
Carbon Monoxide sensor in nano Ampere. It is not necessary to modify this value except
when a new sensor is installed. The new sensor is provided with the new value to be set on
this screen. The display alternates between “nA” and the value of the full scale. The blinking
digit shows the current cursor position.
1.) Press the “Prog” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL 1” will appear. Use the
On/Off button to cycle through the various settings until you reach the nA” screen. The
3 digit value will alternate with the “nA” screen for a few seconds and the Pro CO
Analyzer will be ready for adjusting the “nA” Value.
2.) The blinking digit shows the cursor position.
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3.) Press the “Prog” button to increase the value (from 0 to 9)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the Na value, press the “On/Off” button. You will
then automatically jump to “Fct” programming view. To continue pass this to the end
press the On/Off button until the “End” screen appears.
6.) This procedure is used ONLY when a new sensor has been ordered from Nuvair
and is ready to be installed.
The conversion value of the Carbon Monoxide sensor is set in factory and must be
changed only when the CO sensor is replaced. The new sensor will come from the
factory with a label showing the new “nA” value to be programmed. A wrong value of this
parameter will give a wrong reading of CO concentration. If it is modified the conversion
value of the Carbon Monoxide sensor, the instrument will be no more accurate. All the
analysis concentration shown on the display will be wrong. Do not modify this value. It is
necessary to modify this value only at the installation of a new sensor. Wrong Carbon
Monoxide analysis may lead to death.
11.12 Gain Factor (Fct)
After the “nA” the instrument goes to “Fct”, that is the conversion value of gain factor. It is not
necessary to modify this value except when a new sensor is installed. The new sensor is
provided with the new value to be set on this screen. The value is referred to as the “Fsc”
number on the sensor. The display alternates between “Fct” and the conversion value of the
gain factor.
The blinking digit shows the current cursor position.
1.) Press the “Prog” button for more than two seconds and then release the button.
On the display will appear “Pr” for two seconds, then “AL 1” will appear. Use the
On/Off button to cycle through the various settings until you reach the “Fct” screen.
The 3 digit value will alternate with the “Fct” screen for a few seconds and the Pro CO
Analyzer will be ready for adjusting the “Fct” Value.
2.) The blinking digit shows the cursor position.
3.) Press the “Prog” button to increase the value (from 0 to 9)
4.) Press the “Adjust” button to move the cursor to the next digit, the “Adjust” button will
be used to cycle through the rest of the digits.
5.) To complete your entry and save the Gain Factor value, press the “On/Off” button.
You will then automatically jump to the “End” and return to the current gas reading.
6.) This procedure is used ONLY when a new sensor has been ordered from Nuvair
and is ready to be installed.
Then gain factor is set in factory and must be changed only when the CO sensor is
replaced. The new sensor will come from the factory with a label showing the new ‘Fct’
value to be programmed. A wrong value of this parameter will give a wrong reading of CO
concentration. If it is modified the gain factor instrument will be no more accurate. All the
analysis concentration shown on the display will be wrong. Do not modify this value. It is
necessary to modify this value only at the installation of a new sensor. Wrong Carbon
Monoxide analysis may lead to death.
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11.13 Pro CO Threshold Alarms
Should the Carbon Monoxide reading go over the threshold alarms (AL1 or AL2) the
instrument will go into alarm mode and will activate the (optional) relays output (open
collector max 100mA) and the internal buzzer. The display will show the trespassed alarm
and the actual measured value. To stop the audible alarm, press any key. In this event the
Pro Co Analyzer will remain in alarm mode until the analyzed value goes below the alarm.
The relay output typically is used to shut down the compressor. Nuvair can supply the
necessary components to adapt your compressor to the relay or provide them at the time of
install on a new compressor.
11.14 Powering Off the Pro CO
At the home or gas reading screen, hold down the On/Off button for a couple of seconds.
The Analyzer will display “OFF” and then go blank.
11.15 Pro CO Factory Reset
In case it is necessary to reset the Pro CO Analyzer to the factory settings, power on the
Analyzer pressing at the same time for more than one second the “On/Off” and “Adjust”
buttons. On the display will appear “res” and the instrument will go to the reading page.
You will need to open the Pro CO analyzer and get the Values from the sensor for
inputting into the PRO CO analyzer before using.
In case of reset, the instrument will delete all the alarms settings, the full scale value, any
new conversion value of Carbon Monoxide sensor and of the gain factory. Before using
again the instrument, it may be necessary to program again the alarm values, the full
scale value, and the conversion value of Carbon Monoxide sensor and gain factor if
changed. All the analysis concentration shown on the display would be wrong. Wrong
Carbon Monoxide analysis may lead to death.
11.16 Pro CO Sensor Replacement
You should take note of your “Fsc” Number and “nA” Number before installing a new sensor.
The “Fsc” number is programmed into the Pro CO Analyzer at the “Fct” and “Fsc” setting.
This information will be used to program the Pro CO analyzer after the sensor is installed.
“Fsc” Number:
Na Number
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Be sure to dispose of spent, leaking, or damaged Sensors properly, according to local
regulations.
Do not swallow (ingest) either the electrolyte from the Sensor or the Sensor itself. The
Potassium hydroxide chemical contained in the Sensor will cause severe injury or death.
If electrolyte or the Sensor is swallowed, seek medical attention immediately.
If after handling the 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.
11.17 Handling Pro CO 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.
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12.0 Spares and Accessories
12.1 Calibration Equipment
Calibration requires certified calibration gas to be free of
any moisture and delivered at a specific flow rate and
pressure.
Flow Restrictor/
Regulator
Assembly
Nuvair offers a calibration gas canister with a compatible
flow restrictor and regulator assembly to regulate the gas
for proper calibration.
Nuvair
Calibration Gas
Specs:
CO 10 ppm
CO2 1000 ppm
Nitrogen Balance
12.2 Replacement Sensors
12.2.1 O2 Replacement Sensor P/N 9507
12.2.2 CO Replacement Sensor P/N 9501
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12.3 Flow Restrictors and Regulators
Universal
Flow
Restrictor
Pressure
Reducing
Regulator
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.
Part No. 9519
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.
¼” FNPT Flow Restrictor
Part - 9517
TM
ScubaPro Flow Restrictor
Part – 9518-SCUBAPRO
HP Regulated Flow Restrictor
Part No. 9520-Int
TM
Mares Flow Restrictor
Part – 9518-MARES
HP Regulated Flow Restrictor
Part No. 9520-DIN
Standard Flow Restrictor
Part - 9518-STD
13.0 Troubleshooting
Battery symbol
Low Battery
Change the battery
No display
Switched off
Bad connection
Low Battery
Pressure on sensor
Radio transmission
O2/ CO Sensor old or faulty
CO2 Sensor old or faulty
Condensation on sensor.
Switch on
Check display/ battery connection
Change the battery
Check flow
Move unit away
Change sensor
Return to Dealer
Dry in air
Display faulty
Return to dealer
Reading erratic
Display segments missing
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14.0 Relay Output Schematics
4-20mA Connections: The relay output uses a special “Mini Jack” plug that can be
purchased separately from Nuvair. Insert the plug into the output jack. Connections diagram
below for additional wiring.
The plug should be connected or disconnected when the instrument is switched off, or
the instrument will automatically switch off.
Open Collector Connections:
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NUVAIR Analyzer Trio Warranty
NUVAIR extends a limited warranty, which warrants the Analyzer Trio to be free from defects in materials
and workmanship under normal use and service for a limited period. The Analyzer Trio is warranted
according to the terms as set forth below. This warranty is not transferable.
NUVAIR will, at its discretion and according to the terms as set forth within, replace or repair any materials
which fail under normal use and service and do not exhibit any signs of improper maintenance, misuse,
accident, alteration, weather damage, tampering, or use for any other than the intended purpose.
Determination of failure is the responsibility of NUVAIR, which will work together with the customer to
adequately address warranty issues. When any materials are repaired or replaced during the warranty
period, they are warranted only for the remainder of the original warranty period. This warranty shall be void
and NUVAIR shall have no responsibility to repair or replace damaged materials resulting directly or
indirectly from the use of repair or replacement parts not approved by NUVAIR.
Terms:
NUVAIR warrants the Analyzer Trio to be free from defects in material and workmanship for a period of
twelve (12) months from date of purchase with the exception of the Oxygen Sensor. The warranty covers
parts and labor.
NUVAIR warrants the O2 sensor to be free from defects in material and workmanship for a period of twentyfour (24) months from date of purchase. The warranty covers parts and labor and is prorated as follows:
• 0 – 12 Months
• 13 – 18 Months
• 19 – 24 Months
Free Replacement
50% Off Replacement
25% Off Replacement
A warranty registration card, supplied with system documentation, must be filled out and submitted to
NUVAIR for the warranty to be registered. If the warranty registration card is not received within ten (10)
days of purchase, the warranty will begin with the date of manufacture by NUVAIR.
Maintenance Items:
Any materials which are consumed, or otherwise rendered not warrantable due to processes applied to
them, are considered expendable and are not covered under the terms of this policy. This includes
batteries.
Return Policy:
Application for warranty service can be made by contacting NUVAIR during regular business hours and
requesting a Return Material Authorization number. Materials that are found to be defective must be
shipped, freight pre-paid, to the NUVAIR office in Oxnard, California. Upon inspection and determination of
failure, NUVAIR shall exercise its options under the terms of this policy. Warranty serviced materials will be
returned to the customer via NUVAIR’s preferred shipping method, at NUVAIR’s expense. Any expedited
return shipping arrangements to be made at customer’s expense must be specified in advance.
Limitation of Warranty and Liability:
Repair, replacement or refund in the manner and within the time provided shall constitute NUVAIR’S sole
liability and the Purchaser’s exclusive remedy resulting from any nonconformity or defect. NUVAIR shall not
in any event be liable for any damages, whether based on contract, warranty, negligence, strict liability or
otherwise, including without limitation any consequential, incidental or special damages, arising with respect
to the equipment or its failure to operate, even if NUVAIR has been advised of the possibility thereof.
NUVAIR makes no other warranty or representation of any kind, except that of title, and all other warranties,
express or implied, including warranties of merchantability and fitness for a particular purpose, are hereby
expressly disclaimed. No salesman or other representative of NUVAIR has authority to make any warranties.
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Additional Record of Changes
It is the responsibility of the owner of this product to register their ownership with Nuvair by
sending the warranty card provided to Nuvair. This card is to establish registration for any
necessary warranty work and as a means of communication that allows Nuvair to contact the
user regarding this product.
The user must notify Nuvair of any change of address by the user or sale of the product. All
changes or revisions to this manual must be recorded in this document to ensure that the
manual is up to date.
Change Date
Description of Change
8/17
Update Warranty Info
:
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Nuvair™
Phone (805) 815-4044
Fax (805) 486-0900
1600 Beacon Place
Oxnard, CA 93033
USA
Email : info@nuvair.com
Web : www.nuvair.com
Revision 08.17