Instruction 0024-9395
36
Fyrite Pro
The CO reading is a measurement of how much carbon monoxide in ppm
is present in the flue-gas stream. Note, however, that the amount of CO
dis played may be diluted by secondary air (refer to Section 4.13.12 CO Air
Free Screen).
The O
2
reading is the measured percentage of oxygen present in the flue-
gas stream.
Front Panel Button Functions:
▲
– Displays next screen (refer to Section 4.12)
▼
– Displays previous screen (refer to Section 4.12)
HOLD
– Freezes display (press
ENTER
to unfreeze)
ENTER
– Hold for 2 seconds to display Fuel Screen
LIGHT
– Toggles backlight ON/OFF
I/O
– Turns analyzer OFF (5 second delay)
4.13.8 CO
2
& Excess Air Screen
(
Model 110/120/125)
The CO
2
reading is a calculation of the percentage of carbon dioxide that is
being produced by the combustion process.
Excess Air is a calculation of the percentage of extra air that was avail able
in the combustion chamber above the theoretical amount needed for perfect
combustion.
Front Panel Button Functions:
▲
– Displays next screen (refer to Section 4.12)
▼
– Displays previous screen (refer to Section 4.12)
HOLD
– Freezes display (press
ENTER
to unfreeze)
ENTER
– Hold for 2 seconds to display Fuel Screen
LIGHT
– Toggles backlight ON/OFF
I/O
– Turns analyzer OFF (5 second delay)
