Application Note

3 Fluke Corporation Fluke 975 Air Meter: Environmental carbon dioxide analysis
Since CO
2
is heavier than air,
the CO
2
would settle at the floor
where the water heater burner
is typically located, depriv-
ing it of oxygen, and resulting
in incomplete combustion and
elevated CO. As this process con-
tinued, the concentration of CO
increased creating a more dan-
gerous situation.
Monitoring CO
2
levels in the
equipment room is likely to alert
occupants to potentially haz-
ardous situations more quickly,
before the process gone wrong
can accelerate the production of
CO. (CO
2
is heavier than air and
tends to settle, CO is lighter than
air and tends to rise.) Since the
combustion process of fossil fuels
produces 1.3 to 2 times as much
water as CO
2
, an unexplained
increase in humidity levels, or
condensation on cold surfaces,
can also alert one to a venting
problem.
When an occupied space
is adjacent to a warehouse or
parking garage, simultaneous
increases in both CO
2
and CO
can indicate ventilation system
problems. Garages and ware-
houses should be independently
exhausted and the absolute
pressure of the occupied space
should be maintained above the
absolute pressure of the adjoin-
ing garage or warehouse.
Fluke Corporation
PO Box 9090, Everett, WA USA 98206
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PO Box 1186, 5602 BD
Eindhoven, The Netherlands
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In Europe/M-East/Africa [phone] or
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Web access: http://www.fluke.com
©2006 Fluke Corporation. All rights reserved.
Printed in U.S.A. 10/2006 2786485 A-EN-N Rev A
Fluke. Keeping your world
up and running.™
Conclusion
Whether one wishes to:
•
spot check areas of concern
•
use the MIN MAX feature on
the Fluke 975 AirMeter™ to
narrow in on problem sources
•
use the “technical detective”
data logging feature to analyze
a space over an extended time
period to solve elusive prob-
lems
the Fluke 975 AirMeter™ is a
tool that can save time, money,
and even lives.
Reading CO
2
levels in an office space.