Instruction 24-9448 2-1
Specications
2 Specifications
The PCA 2 Directly Measures and Displays:
The gases displayed depend on the analyzer’s model number.
Refer to Section 1.2.
Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 20.9%
Stack Temperature . . . . . . . . . . . . . . . . . . . . –4 to 2,192 ºF (–20 to 1,200 ºC)
Primary / Ambient Air Temperature . . . . . . . . –4 to 999 ºF (–20 to 537 ºC)
Carbon Monoxide (CO) (H
2
compensated) . . . . . . . . . . . . . . . .0 to 4,000 ppm
Pressure / Draft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±72 "H
2
O (±180 mb)
CO High Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,001 to 20,000 ppm
Nitric Oxide (NO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 3,000 ppm
Nitrogen Dioxide (NO
2
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 500 ppm
Sulfur Dioxide (SO
2
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 5,000 ppm
The PCA 2 Calculates and Displays:
Calculations are performed only when the measured oxygen level is below
16.0%, and the stack temperature is below 2,000 °F (1,093 ºC).
Combustion Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1 to 100%
Excess Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to 250%
Carbon Dioxide (dry basis) . . . . . . . . . . 0.1 to fuel dependent maximum in %
NOx (NOx = NO + NO
2
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 3,500 ppm
NOx referenced to %O
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 9,999 ppm
CO referenced to %O
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 9,999 ppm
NO reference to %O
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 9,999 ppm
NO
2
reference to %O
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 9,999 ppm
SO
2
reference to %O
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 9,999 ppm
Fuels Available for Combustion Calculations:
• Natural Gas • Coal
• Oil #2 • Wood
• Oil #4 • Kerosene
• Oil #6 • Bagasse
• Propane • Digester Gas