Instruction 0024-9395
22
Fyrite Pro
4.2.4 Performing a Com bus tion Efficiency Test
1. After turning ON the analyzer and selecting the appropriate fuel,
press the
▲
or
▼
button to display the Stack Temperature & Ef-
ficiency Screen (refer to Section 4.13.10).
2. Position the probe in the flue-gas stream to obtain the hottest
“Stack” reading.
Lo cat ing the highest stack temperature is very im-
por tant for ac cu rate ef fi cien cy calculations.
3. Burner-service pro ce dures can now begin. Use the
▲
and
▼
buttons
to scroll through the analyzer’s other display screens (refer to Sec-
tion 4.12). The analyzer read ings will update con tin u ous ly showing
changes in burner performance.
Note:
When a calculation cannot be made because of im-
proper data (i.e., oxygen level above 17.9%), four dashes “- - -
-” appear in place of the calculated value on both the screen
and printout.
Tip:
Pressing the
HOLD
button will freeze all readings and
stop the pump, allowing the operator to scroll through the
Run Mode Screens and examine the readings at any single
point in time. Press
ENTER
to restart the pump and resume
testing.
4.2.5 Ending a Combustion Test
WARNING!
Burn Hazard.
Do not touch the probe after
removing it from the stack. Allow the probe to cool before
handling (about 5 minutes).
1. Remove probe from the flue-gas stream.
2. Allow the pump to run until all combustion gases are flushed from
the analyzer as indicated by the O
2
reading returning to 20.9%.
3. Turn OFF the analyzer per Section 4.10.
