Bacharach Portable Combustion Analyzer 24-9351 - Manual (Page 21)

Instruction 24-9351
PCA
4-5
4.3.3 Performing a Combustion Test
IMPORTANT: If the burner’s primary-air temperature is
not the same as the room temperature, then be sure the
Optional Room Air / Primary Air Thermocouple is installed
per Section 3.3.
1. With the Combustion Test Screen displayed and the probe installed in
the stack, press the key to start a combustion test (refer to Sec-
tion 4.7).
2. Once all sensor readings are indicated on the screen: A) Loosen the
thumbscrew on the probe stop. B) Move the probe in and out of the
stack until the stack’s core temperature (hot spot) is located.
C) Tighten the thumbscrew to prevent further movement of the probe.
Locating the highest stack temperature is very important for accurate
combustion calculations.
3. You can now begin burner-service procedures. The readings on the
analyzer change quickly to show changes in burner performance.
CAUTION
With the Water Trap / Filter Assembly stood up on its Outlet
End, do not let water condensate build up beyond the tip of
the riser tube. The sensors could be damaged if water would
enter the analyzer. Drain the water condensate after every
combustion test (refer to Section 6.4).
4. Pressing the key will save the Combustion Test Screen readings
while a test is in progress. Moving the cursor ( z ) in front of the print
(
P) function using the
s
key, and then pressing will print the test
information to an optional printer.
4.3.4 Ending a Combustion Test
1. Press the key to end a combustion test.
WARNING!
Burn hazard! Allow a hot probe to cool for about 5 minutes
before handling.
Operation