Bacharach PCA 2 24-9448, Operating & Maintenance Instructions, Page: 17 / 108

Instruction 24-9448 2-1
Specifications
2 Specifications
The PCA 2 Directly Measures and Displays:
The gases dsplayed depend on the analyzer’s model number.
Refer to Secton 1.2 .
Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 20.9%
Stack Temperature . . . . . . . . . . . . . . . . . . . . –4 to 2,192 ºF (–20 to 1,200 ºC)
Prmary / Ambent Ar Temperature . . . . . . . . –4 to 999 ºF (–20 to 537 ºC)
Carbon Monoxde (CO) (H
2
compensated) . . . . . . . . . . . . . . . . 0 to 4,000 ppm
Pressure / Draft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±72 "H
2
O (±180 mb)
CO Hgh Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,001 to 20,000 ppm
Ntrc Oxde (NO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 3,000 ppm
Ntrogen Doxde (NO
2
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 500 ppm
Sulfur Doxde (SO
2
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5,000 ppm
The PCA 2 Calculates and Displays:
Calculatons are performed only when the measured oxygen level s below
16.0%, and the stack temperature s below 2,000 °F (1,093 ºC).
Combuston Effcency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1 to 100%
Excess Ar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to 250%
Carbon Doxde (dry bass) . . . . . . . . . . 0.1 to fuel dependent maxmum n %
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
• Ol #2 • Wood
• Ol #4 • Kerosene
• Ol #6 • Bagasse
• Propane • Dgester Gas