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PCA
®
400 User Manual
Fig. 3-5:
Press Power Button
60-SECOND
WARM-UP
IMPORTANT
:
After saving changes to Temperature and Pollution Units, they will
become the analyzer’s default values for all future testing.
CAUTION
:
Ensure that the analyzer is sampling fresh air during the warm-up.
Pulling a stack gas sample through the analyzer during its warm-up period will not
damage the analyzer, but it will result in incorrect sensor readings, and may result
in sensor error messages appearing after the warm-up cycle completes.
3.
Turn On Analyzer
Press the POWER button to begin a 60-second warm-up period. Users will hear the pump
begin operation and splash screen should appear on the analyzer’s display.
3.2 Performing Combustion Test
3.2.1 Combustion User Preferences
Temperature Units
Select to display temperature in Fahrenheit
(ºF)
or Celsius
(ºC)
.
f
To change Temperature Units:
Main Menu
Settings
( )
T
emperature Units
select
Fahrenheit
or
Celsius
Pollution Units
The PCA
®
400 is capable of converting the measured ppm levels of CO, NO, NO
2
, and SO
2
to various pollution units using CFR40 Part 60 emission factors.
(Note that the pollution unit
conversions for NO, NO
2
and NO
x
are based on the molecular weight of NO
2
.)
f
To change Pollution Units:
Main Menu
Settings
( )
Pollution Units
select
ppm
,
lb/
MBtu
,
mg/m3
or
g/GJ