Operation & user’s manual [PDF] (24 pages)
- Updated: 11.04.2026
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User Manual
Pro CO Alarm
Carbon Monoxide Analyzer
Rev. 03.19
Quick Reference Guide
READ ENTIRE MANUAL BEFORE USE
1.
To switch on, hold the On/Off button until the display powers up.
2.
To turn off, hold the On/Off button until the display goes blank.
3.
Gas flow to the analyzer should be regulated to .5-3 L/min with no pressure on the
sensor. Pressurizing the sensor will lead to inaccurate readings and could damage it.
4.
If using a Nuvair 9517.6 flow reducer for sample flow, the incoming pressure should be
75-100 PSI.
5.
Press and hold the Adjust button to view the battery voltage and current ambient
temperature in Celsius.
a. Conversion formula to Fahrenheit: (°C x 1.8)+32=°F
6.
Press and hold the Prog button to access the programming pages for:
a. Alarm 1 (AL1) sets the low level alarm (setting to 300 turns this off).
b. Alarm 2 (AL2) sets the high level alarm (setting to 300 turns this off).
c. Full Scale Value (FSC) sets the mA value for the optional output.
d. Conversion Value (nA) is only to be set when a new sensor is installed.
e. Gain Factor (Fct) is only to be set when a new sensor is installed.
f. Calibration value (CAL) is to be adjusted to the CO content of the certified
calibration test gas being used.
g. End is displayed after the last programming page. The display will then return to
the current gas reading value.
7. Press the On/Off button to cycle through the programming screens, the Prog button to
change the value of the blinking digit, and the Adjust button to select which digit to
program.
8. To calibrate the Analyzer Span:
a. Turn on the analyzer and program the CAL value to the CO content of the
calibration gas to be used.
b. Connect the sensor to calibration gas and allow to flow for 2-3 minutes. Flow
should be regulated to 1 L/min with no pressure on the sensor.
c. When the reading is stable, press the On/Off and Adjust buttons
simultaneously and hold until the display flashes “Cal”.
d. The unit is calibrated once the screen returns to the gas reading display. If the
reading drifts after calibration, allow the unit to sit while turned on for a few
minutes so the sensor temperature can stabilize, then repeat steps a-c.
9. To calibrate the Analyzer Zero:
a. Turn on the analyzer.
b. Attach a flow of certified 0 PPM CO, 100% Nitrogen test gas regulated to .5-3
L/min.
c. Press the Prog and Adjust buttons simultaneously and hold until the display
flashes “Cal”.
d. When the display returns to reading 000, the zero has been set.
10. If equipped with a lithium battery, read and understand all instructions included with
the battery charger.
11. Any wind or breeze present while using the analyzer can affect readings.
Pro CO Carbon Monoxide Analyzer
3
www.nuvair.com
If you have any questions on this equipment please contact Technical Support at:
Nuvair
1600 Beacon Place
Oxnard, CA 93033
Phone:
+1 805 815 4044
FAX:
+1 805 486 0900
Email:
[email protected]
Hours:
Monday through Friday
8:00 AM to 5:00 PM PST USA
This User 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.
Pro CO Carbon Monoxide Analyzer
4
www.nuvair.com
Table of Contents
1.0 Introduction…………………………………………………………………………………….
2.0 System Description……………………………………………………………………………..
2.1 Controls………………………………………………………………………………….
2.2 Display…………………………………………………………………………………..
2.3 Alarm……………………………………………………………………………………..
2.4 Sensor……………………………………………………………………………………
2.5 Batteries…………………………………………………………………………………
2.6 Flow Adapter Cap………………………………………………………………………
3.0 Calibration……………………………………………………………………………………….
3.1 Sample Flow Method………………………………………………………………….
4.0 Operation…………………………………………………………………….…………………..
4.1 Programming Procedures………………………………………………………………
4.2 Alarm Setting…………………………………………………………….………………
4.3 Full Scale Value Setting………………………………………………………..………
4.4 Conversion Value of Carbon Monoxide Sensor…………………………………….
4.5 Gain Factor ……………………………………………………………….…………….
4.6 Calibration Value……………………………………………….………………………
5.0 Threshold Alarms………………………………………………………………...……………..
6.0 Powering Off…………………………………………………………………………………….
7.0 Factory Reset…………………………………………………………………………………...
8.0 Maintenance…………………………………………………………………………………….
8.1 Analyzer Care……………………………………………………………………………
8.2 9V Battery Replacement…………………………………………………………….…
8.3 Sensor Replacement……………………………………………………………..…….
8.3.1 Handling Sensor………………………………………………………....……………
9.0 Spares and Accessories………………………………………………………………………..
9.1 Sensor………………………………………………………………………………..….
9.2 Calibration Equipment…………………………………………………………………..
10.0 Troubleshooting………………………………………………………………………….……
11.0 Relay Output Schematics……………………………………………………………………
Appendix
Analyzer Specifications…………………………………………………………………………….
Warranty………………………………………………………………………………………………
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