PCA2 Portable Combustion Efficiency and Environmental Analyzer

PCA2 Portable Combustion Efficiency and Environmental Analyzer

Affordable, State of the Art Combustion Analyzer

The PCA2 is a commercial grade, handheld combustion and emissions analyzer for on-demand or semi-continuous sampling of light industrial, institutional, commercial and residential furnaces, boilers and appliances. The PCA2 is the perfect tool for service technicians and boiler contractors who need to ensure safe operating conditions, determine combustion efficiency, or perform emissions testing in combustion applications.

The PCA2 directly measures and displays flue gas Oxygen (O2), Carbon Monoxide (CO), Stack Temperature, Draft, Differential Pressure, Combustion Air Temperature and optionally measures and displays Nitric Oxide (NO), Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2). Simultaneously, the PCA2 calculates and displays combustion efficiency (EFF), Excess Air (EA), Carbon Dioxide (CO2), NOx and Oxygen reference values. The PCA2 performs combustion calculations for ten fuels including, Natural Gas, Oil #2, Oil #4, Oil #6, Propane, Coal, Wood, Kerosene, Bagasse and Digester Gas. The large backlit graphic displays shows eight different measurements and calculated values simultaneously, and also has zoom capabilities.

Features & Benefits

Smart Sensors

Measures 4 Gases Simultaneously

Automatic CO Overrange Protection

Versatile Power Management

Graphic Display


Measurement Ranges
Primary/Ambient Air Temperature -4 to 999F
Stack Temperature -4 to 2192F
Oxygen 0 to 20.9%
Carbon Monoxide (H2 comp) 0 to 4,000 ppm
Carbon Monoxide, high range 4,001 to 20,000 ppm
Nitric Oxide 0 to 3,000 ppm
Nitrogen Dioxide 0 to 500 ppm
Sulfur Dioxide 0 to 5,000 ppm
Pressure/Draft -72 to +72 inwc
Calculated Ranges
Combustion Efficiency 0.1 to 100%
Excess Air 1.0 to 250%
Carbon Dioxide (dry basis) 0 to fuel dependent maximum
NOx (NOx = NO + NO2) 0 to 3,500 ppm
NOx referenced to % O2 0 to 9,999 ppm
CO referenced to % O2 0 to 9,999 ppm
NO referenced to % O2 0 to 9,999 ppm
NO2 referenced to % O2 0 to 9,999 ppm
SO2 referenced to % O2 0 to 9,999 ppm
Oxygen 0.3% O2 (on flue gas)
Stack or Flue Gas Temperature
4F between 32 and 255F
( 2C between 0 and 124C)
6F between 257 and 480F
( 3C between 125 and 249C)
8F between 482 and 752F
( 4C between 250 and 400C)
Primary-air/Ambient Temperature 2F between 32 and 212F
( 1C between 0 and 100C)
2% reading or 0.02 inwc whichever is greater between 0 and 10 inwc
3% of reading between 10 and 72 inwc
5% of reading or 10 ppm whichever is greater between 0 - 2000 ppm CO
10% of reading between 2001 to 20,000 ppm
NO 5% of reading or 5 ppm whichever is greater between 0-2000 ppm NO
NO2 5% of reading or 5 ppm whichever is greater between 0-500 ppm NO2
SO2 5% of reading or 10 ppm whichever is greater between 0-2000 ppm SO2
Memory 500 complete combustion test records
Logged Memory 500 complete logged combustion test records
Selectable Fuels Natural Gas, Oil #2, Oil #4, Oil #6, Propane, Coal, Wood, Kerosene, Bagasse and Digester Gas
Size 9"H x 3"W x 2.5"D (22.9 cm x 7.6 cm x 6.3 cm)
Weight 1.4 lbs (0.6 kg)
Power Source Four disposable AA alkaline batteries or NiMH rechargable batteries providing 10 hours of continuous operation. Optional AC power adapter
Display 160 x 160 (2.5 in x 2.5 in) Graphic Liquid Crystal Display
Warm Up Time 60 second total warm up time (sensors are checked and autozeroed during warm up)

PCA2 Ordering Information

Model Number Part Number Sensor 1 Sensor 2 Sensor 3 Sensor 4 Printer
PCA 2 225 24-8350 O2 CO      
PCA 2 235 24-8351 O2 CO NO    
PCA 2 245 24-8352 O2 CO CO (high)    
PCA 2 255 24-8353 O2 CO SO2    
PCA 2 265 24-8354 O2 CO NO NO2  
PCA 2 275 24-8355 O2 CO NO SO2  
PCA 2 225 Kit 24-8370 O2 CO     X
PCA 2 235 Kit 24-8371 O2 CO NO   X
PCA 2 245 Kit 24-8372 O2 CO CO (high)   X
PCA 2 255 Kit 24-8373 O2 CO SO2   X
PCA 2 265 Kit 24-8374 O2 CO NO NO2 X
PCA 2 275 Kit 24-8375 O2 CO NO SO2 X

Instrument Comes Complete With: Hard Carry Case, Probe and Hose Assembly, Protective Rubber Boot, Factory Calibrated and Installed Sensors, Instruction Manual, Batteries, USB Cable, PC Software and a 2-Year Warranty.
All instruments can be upgraded to include combinations of CO(high), NO, NO2 and SO2.

Replacement Parts and Accessories

Part Number Description
24-0788 Replacement O2 sensor
24-0789 Replacement CO sensor
24-0881 Replacement NO sensor
24-0997 Replacement CO sensor (high range)
24-0998 Replacement SO2 sensor
24-1027 Replacement NO2 sensor
24-1395 Smart sensor, CO
24-1397 Smart sensor, CO (high range)
24-1398 Smart sensor, SO2
24-1399 Smart sensor, NO2
24-1401 Smart sensor, NO
204-0020 Battery, NO bias battery
24-7059 Calibration kit (less calibration gas)
24-1400 IrDA Printer with disposable batteries
24-1310 Printer paper, 5 rolls
06-8733 Printer paper, 1 roll
24-3004 Probe assembly
19-3265 Replacement water trap assembly
07-1644 Replacement filter element (pkg of 3)
24-8414 Replacement thermocouple, 12 inch
19-3037 Probe stop
24-1124 Extended hose assembly, 20 ft.
104-1797 Thermocouple, 10 ft. (combustion air temp.)
104-1798 Thermocouple, 1 in. (ambient air temp.)
24-1409 Protective rubber boot
24-1404 AC power adapter
104-4032 USB cable
24-1425 PCA2 Data Recovery Software
21-7006 Tru Spot Smoke Tester

Additional Product Informationhgm300.pdf