MODEL 300 COMBUSTION ANALYZER
Instruction 24-9223
3-3
3.1
PERFORMING AN EFFICIENCY TEST
This procedure describes how to initially calibrate the Model 300 Com-
bustion Analyzer and perform a combustion efficiency test.
Each time the combustion analyzer is turned on, its microprocessor
begins its initial start-up routine. This routine directs the operator to
calibrate the analyzer and select the proper fuel.
After performing an efficiency test, the analyzer can be recalibrated and/
or a different fuel can be selected for the next test. Refer to Sections 3.6
and 3.7.
1. Turn on the analyzer by either plugging it in, or by setting its battery
pack switch to ON.
WARNING!
Use only UL or CSA approved grounded extension cords. Use of
other cords may bring about a hazardous condition and voids
the instrument’s warranty. Ungrounded extension cords may
cause erratic display indications.
2. During initial power up, all front panel, and Optional auxiliary panel
displays and LED indicators are checked by being turned on for
approximately 5 seconds; after which, the left display switches to show
CAL, the Optional clock displays the correct time, and the Optional
auxiliary displays go dark. Also at this time, the pump is turned on
and continues to run until the analyzer is calibrated.
3. Place probe into center of furnace’s primary air inlet (Section 3.2). If
the furnace is drawing in ambient room air, you can sample room air
for the purpose of determining the primary air temperature.
NOTE:
During calibration, you can measure inlet air tempera-
ture by selecting TEMP on the left display.