Instruction 0024-9395
2
Fyrite Pro
1.2 Operational Overview
Pressing the
I/O
button turns the analyzer ON. Note that there is a warm-
up period of either 10 or 60 seconds, dependent on the analyzer’s model and
setup, that must elapse before the analyzer can be used.
When using the analyzer to just measure CO or draft, insert the analyz-
er’s probe into the flue-gas stream of the appliance under test and begin
testing. The measured values of draft and/or CO will appear on the ana-
lyzer’s LCD.
For models that calculate combustion efficiency, choose a fuel code that cor-
responds to the fuel being burned by the appliance being tested, and then
press the
ENTER
button to place the analyzer into its Run Mode. Begin
testing by inserting the analyzer’s probe tube into the flue-gas stream
of the appliance under test. The analyzer will monitor the flue gas and
display measured and calculated values that are relative to the combustion
process. These values are dis played on the analyzer’s LCD, and are chosen
for display by pressing the In cre ment
(
▲
)
and Dec re ment
(
▼
)
but tons.
Pressing the
HOLD
button during a test will freeze all measured and calculat-
ed values at their current levels. Pressing the
ENTER
button resumes testing.
For analyzers with memory, pressing the
HOLD
button
twice
during a
test will display the Print/Memory Menu Screen. Using the
▲▼
and
ENTER
buttons the operator can choose to print the current readings,
save the current readings in memory, recall and view saved readings from
memory, clear all the memory, or print all saved readings.
A backlight enables an operator to read the display in dimly-lit areas.
Pressing the
LIGHT
button turns the backlight ON and OFF. The backlight
will automatically turn OFF after 10 minutes of keyboard inactivity.
A power saver function will shut the analyzer OFF after 20 min utes of key-
board inactivity. For models with an O
2
and CO sensor, however, the power
saver function is dis abled if the detected O
2
value is less than 17.9% or the
CO value is more than 50 ppm.
Press the
I/O
button to turn the analyzer OFF. Note that there is a 5 sec-
ond delay before the analyzer actually turns OFF, during which time the
unit can be kept ON by pressing the
ENTER
button. For analyzers that
contain a CO sensor, there is a CO purge feature that keeps the analyzer’s
pump running until the measured CO level drops below 50 ppm.
