yellow jacket CA502, User And Maintenance Manual

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8.1.3 Inserting the probe in the stack
When the autozero is over, insert the gas sample probe into the stack.
In order for the probe to be inserted at the right point in the stack, its distance from the boiler has to be twice the
diameter of the stack pipe itself or, if this is not possible, comply with the boiler manufacturer ’ s instructions.
In order to position the probe correctly drill a 13/16 mm hole in the stack (unless already present), and screw in the
positioning cone provided with the probe. This is done so that no air is drawn from the outside during sampling.
The screw on the cone allows the probe to be stopped at the right measurement depth - this usually corresponds
to the center of the flue pipe. For greater accuracy, the user may insert the probe gradually into the pipe until the
highest temperature is read.
The exhaust pipe must be inspected before carrying out the test, to ensure that no restrictions or losses are
present in the piping or stack.
8.1.4 Performing the combustion analysis - Manual Mode
8.1.2 Preliminary Operations
The following parameters need to be set prior to performing the combustion analysis:
BEFORE PERFORMING THE COMBUSTION ANALYSIS, SET NECESSARY PARAMETERS
( SEE CHAPTER 12.2 ).
When the autozero phase is complete, press the key “ “, to proceed with the combustion
analysis or press the key “ “, to repeat the autozero phase.
Keep
Repeat
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MENU
► Measurements
Memory
Configuration
Diagnostic
Info service
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ANALYSIS [1/3]
Tf 190.1 C
Ta 15.4 C
O2 4.2 %
CO
23 ppm
CO2 2.9 %
COr ---- p
Save Print
OK
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MEASURES
► Comb. analysis
Draft
CO air
Pressure
OK