Nuvair Pro CO User manual

Operation Manual
Pro CO™
Carbon Monoxide Analyzer

Pro COTM Carbon Monoxide Analyzer
NUVAIR Page 2
Pro CO Carbon Monoxide Analyzer Manual
If you have any questions on this equipment please contact Technical Support at:
Nuvair
2949 West 5th 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

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Pro CO Carbon Monoxide Analyzer Manual
Table of Contents
1.0Introduction ....................................................................................................... 4
2.0System Description ……………………………………………………………........ 5
2.1Controls ………………………………………………………….................. 5
2.2Display …………………………………………………………................... 6
2.3Alarm ...................................................................................................... 6
2.4Sensor …………………………………………………............................... 6
2.5Batteries …………………………………………………………….............. 6
2.6Flow Adapter Cap ..............………………………………………………... 6
3.0Calibration ……………………………………………….………………................. 7
4.0Operation........................................................................................................... 8
4.1Sample Flow Method …………………………………….……................... 8
4.2Direct Flow Method – Gas Cylinder ………………………………............ 9
4.3Direct Flow Method – Scuba Regulator ................................................. 9
5.0Maintenance...................................................................................................... 10
5.1Analyzer Care ……………………………………………………................ 10
5.2Battery Replacement …………………………………………………......... 10
5.3Sensor Replacement ……………………………………………................ 11
6.0Spares and Accessories ………………………………………………………….... 13
6.1Sensor ………………………………………………………………..............13
6.2Calibration Equipment .…………………………………………….............. 13
7.0Troubleshooting..................................................................................................13
Appendix ……………………………………………………………………................... 14
Analyzer Specifications ………………………………………………...............14
Warranty …………………….…………………………………………….……... 15

Pro COTM Carbon Monoxide Analyzer
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Pro CO Carbon Monoxide Analyzer Manual
1.0Introduction
This manual will assist you in the proper set-up, operation and maintenance of the Pro COTM
Carbon Monoxide Analyzer. 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.
DANGER
WARNING
CAUTION
NOTICE

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Pro CO Carbon Monoxide Analyzer Manual
2.0System Description
The Pro COTM Carbon Monoxide Analyzer measures carbon monoxide (CO) levels in gases
in the range of 0 to 100 parts per million (ppm). It can be used to measure the CO content in
gas mixes that may be contaminated due to the introduction of CO from internal combustion
engines or other devices where CO is a byproduct. The Analyzer is designed to verify CO
concentration in stored gas cylinders as well as to monitor enclosed spaces. The Analyzer is
a water and impact resistant unit compatible with outdoor and marine environments.
Carbon monoxide is a colorless, odorless, tasteless gas that will not support life.
Exposure to carbon monoxide can lead to unconsciousness and death.
The Analyzer is battery powered and includes an
internally mounted Sensor with audible alarm. The
Water-Resistant Case includes a Digital Display and
controls that are environmentally sealed
The Analyzer uses a Flow Adapter Cap and Flexible
tubing 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 an
appropriate certified calibration gas.
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.
2.1.Controls
Digital
Display Calibrate Screw
with Lock Nut –
Rotating Type
Power Switch
(Toggle Type)
Up - On
Center - Off
Down - Off
Flow
Adapter Cap
- Over
Sensor Face
Flexible
Tubing
Water-
Resistant
Case
DANGER
WARNING
WARNING

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Pro CO Carbon Monoxide Analyzer Manual
2.2.Display
2.3.Alarm
The Analyzer includes an audible alarm that is activated when the Sensor reaches 10 ppm
CO. The alarm will not clear until the concentration of CO drops below 10 ppm.
2.4.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 18 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.
2.5.Batteries
Three standard AAA 1.5-volt batteries provide power. They are located inside the Analyzer
and are user-replaceable. The batteries should be removed any time the Analyzer will be
stored without use for extended periods of time.
2.6.Flow Adapter Cap
The Analyzer includes a Flow Adapter Cap with flexible tubing and flow orifice. It attaches to
the 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:
Location of
Low Battery
Icon
Carbon Monoxide
Reading
0 – 100 ppm
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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Pro CO Carbon Monoxide Analyzer Manual
3.0Calibration
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 calibrated 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.
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.
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 0.5-1 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.
Step 2. Monitor
Display for Low
Battery Warning. If
Low Battery Icon
Appears, Replace
Batteries.
Step 1. Turn
Analyzer On Step 3. Attach
Tubing to
Calibration Gas
Flow of 0.5 -1
L/min
Step 4. Expose
Sensor to
Calibration Gas
Until Display
Stabilizes
Step 5. Use 5/16”
Wrench to Loosen
Lock Nut. Rotate
Calibrate Screw
Until Display
Reads Listed CO
Calibration Gas
Concentration.
Tighten Lock Nut.
Step 6. Remove
Tubing from
Calibration Gas
Source
WARNING
WARNING
WARNING
NOTICE

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Pro CO Carbon Monoxide Analyzer Manual
4.0Operation
Prior to each Analyzer use:
1) Turn unit on and monitor Display for low battery warning
2) Calibrate Analyzer as required.
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.
The Pro COTM 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 0.5 to 1 L/min at atmospheric pressure. To produce this flow, a Flow
Restrictor and Regulator may be required. Contact Nuvair if you need assistance.
4.1.Sample Flow Method (Preferred)
Step 1. Attach
Flexible Tubing
to Gas Sample
Flow of 0.5 to 1
L/min
Step 2. Verify
that Gas is
Flowing Out
Holes in Flow
A
da
p
ter Ca
p
Step 3. Allow 15
Seconds for Display
Readin
g
to Stabilize
Step 4. Record
Reading while Gas is
Flowing
WARNING

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Pro CO Carbon Monoxide Analyzer Manual
4.2.Direct Flow Method – Gas Cylinder
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.
4.3.Direct Flow Method – Scuba Regulator
Step 1. Slowly Open
Cylinder Valve until
Slight Hiss of Gas is
Heard
Step 2. Hold
Face of Flow
Adapter Cap up
to Gas Flow
Step 3. Verify
that Gas is
Flowing Out
Tubing
Step 4. Allow 15
Seconds for Display
Reading to Stabilize
Step 5. Record
Reading While Gas
is Flowing
Step 6. Remove
Analyzer &
Verify that Gas
Continues to
Flow from Valve.
If Not, Repeat
Procedure
Step 6. Close
Cylinder Valve
Step 1. Attach
Scuba Regulator to
C
y
linder Valve
Step 2. Open
Cylinder Valve Step 4. Hold Face of
Flow Adapter Cap
U
p
to Gas Flow
Step 6. Allow 15
Seconds for Display
Reading to Stabilize
Step 7. Record
Reading while Gas
is Flowing
Step 3. Lightly Press
Regulator Purge
Button to Get Very
Low Flow of Gas
WARNING
WARNING

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Pro CO Carbon Monoxide Analyzer Manual
5.0Maintenance
5.1.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.
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 batteries in the Analyzer.
Step 1. Remove
Screws
Step 2. Remove
Back Cover
Step 3.
Remove &
Replace Old
Batteries
Step 5.
Reinstall
Screws
Step 4. Replace
Back Cover -
Do Not Pinch
Wires
Step 6. Turn
Analyzer On
Step 7.
Perform
Calibration
NOTICE
WARNING
WARNING
WARNING

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Pro CO Carbon Monoxide Analyzer Manual
5.3.Sensor Replacement
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.
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.
CAUTION
DANGER
WARNING

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Pro CO Carbon Monoxide Analyzer Manual
The following pictures illustrate the steps required to replace the Sensor in the Analyzer.
Step 1.
Remove Flow
Adapter Cap
by Unscrewing
CCW
Step 2.
Remove
Screws
Step 3.
Remove
Back Cover
Step 4.
Disconnect
Electrical
Connector
Step 5. Remove
Old Sensor from
Case by
Unscrewing
CCW
Step 6. Replace
with New
Sensor
Step 7. Remove
Shorting Plug from
Sensor Electrical
Connector & Reconnect
Step 9.
Reinstall
Screws
Step 8.
Replace
Back Cover
- Do Not
Pinch Wires
Step 10. Replace
Flow Adapter Cap
Step 12. Perform
Calibration
Note: Reversing Polarity
Will Cause Display to
Read Negative
Step 11. Turn
Analyzer On

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Pro CO Carbon Monoxide Analyzer Manual
6.0Spares and Accessories
6.1.Sensors
Order replacement Sensor Part No. D-31.
6.2.Calibration Equipment
Calibration requires certified CO calibration gas to be
delivered at a specific flow rate and pressure.
A variety of calibration gas canisters are available
from Nuvair, with compatible Flow Restrictor/
Regulator assemblies to regulate the gas.
7.0Troubleshooting
SYMPTOM REASON SOLUTION
Battery symbol LowBattery Change the battery
No display Switched off
Bad connection
Low Battery
Switch on
Check displa
y
/batter
y
connection
Change the battery
Reading erratic Pressure on sensor
Radio transmission
Sensor old or faulty
Condensation on sensor.
Check flow
Move unit away
Change sensor
Dry in air
Reading does not change when
calibration knob is turned
Fault
y
connections
Sensor failure
Check connections
Change sensor
Display segments missing Display faulty Return to dealer
Will not calibrate Sensor faulty Change sensor
Reading drifts Rapid temperature change Stabilize temperature & recalibrate
Flow Restrictor/
Regulator
Assembly
10 PPM CO
Calibration Gas
Canister

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Pro CO Carbon Monoxide Analyzer Manual
Appendix
Analyzer Specifications
Range: 0 – 100 ppm CO
Alarm Set Point: 10 ppm CO
Display Accuracy: +/- 1%
Sensor Type: Electrochemical
Expected Sensor Life, Room Air: 18 Months
Power: 3 AAA 1.5 Volt Batteries
Response Time: Less Than 15 Seconds to 90% of Final Value
Stabilization Time: 15 Minutes when First Installed
Operating Temperature: 32 to 122°F (0 to 50°C)
Storage Temperature: -4 to 140°F (-20 to 60°C)
Operating Pressure: Not to Exceed 1 Atmosphere Absolute (0 P.S.I.)
Humidity: 10-95% RH
Note: All specifications are at ambient / sea level, 25°C

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Pro CO Carbon Monoxide Analyzer Manual
NUVAIR Pro COTM Warranty
NUVAIR extends a limited warranty, which warrants the Pro COTM to be free from defects in materials
and workmanship under normal use and service for a limited period. The Pro CO is warranted
according to the pro-rated terms as set forth below. This warranty is not transferable.
NUVAIR will, at it’s 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.
Pro-Rated Terms:
NUVAIR warrants the Pro CO to be free from defects in material and workmanship for a period of
twelve (12) months from date of purchase. The warranty covers parts and labor.
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.

Pro COTM Carbon Monoxide Analyzer
Nuvair™ 2005 All Rights Reserved
Phone [phone]
Fax [phone]
2949 West 5th Street
Oxnard, CA 93030
USA
Email : [email protected]
Web : www.nuvair.com
Revision 0205