Specifications

Instruction 24-9388
32
Fyrite Pro
4.13.9 CO & CO Air Free Screen (Model 125E only)
The CO reading is the measurement of how much carbon monoxide in ppm
is present in the flue-gas stream.
The CO AIR FREE (undilute) reading is a calculation of the exact ppm
concentration of carbon monoxide if oxygen were 0.0% in accordance with
ANSI standard Z21.1.
CO x 20.9
20.9 – O
2 measured
CO
Air Free
=
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)
4.13.10 CO
2
& O
2
Screen
The CO
2
reading is a calculation of the percentage of carbon dioxide that is
being produced by the combustion process.
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)