Specifications
PCA
®
3
9
Sales Combo 0024-8443 0024-8444 0024-8445 0024-8446
Sales Combo (Kit) 0024-8450 0024-8451 0024-8452 0024-8453
Model Type 255 265 275 285
PCA
®
3 Only Part
Number
0024-7323 0024-7324 0024-7325 0024-7326
Measurements
Oxygen (O
2
)••••
Stack Temperature • • • •
Primary/Ambient Air
Temperature
••••
Carbon Monoxide Low
(CO
Low
)
••••
Pressure/Draft • • • •
Carbon Monoxide
High (CO
High
)
•
Nitric Oxide (NO) • • •
Nitrogen Dioxide
(NO
2
)
•
Sulfur Dioxide (SO
2
)• •
Calculations
Combustion Effi ciency • • • •
Excess Air • • • •
Carbon Dioxide (CO
2
)• • • •
NOx (NOx = NO +
NO
2
)
•
NOx referenced to %
O
2
•
CO referenced to % O
2
••••
NO referenced to % O
2
•••
NO
2
referenced to % O
2
•
SO
2
referenced to % O
2
••
Refer to Section 8.2 for a listing of standard and optional accessories.