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Kane May 940 Combustion Analyzer (KM940CON) O2, CO and NO1

Model #: KM940CON


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Kane May 940 Combustion Analyzer (KM940CON) O2, CO and NO1
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Category Combustion Analyzers

The KM940CON handheld analyzer is easy to use for domestic and industrial boiler flue gas measurement and analysis. It operates on all boiler types and can display 8 parameters simultaneously showing measurements and calculations of boiler efficiency and pollution. It measures O2, flue and net T temperature and calculates CO2, boiler efficiency, excess air and losses. CO is measured with a hydrogen compensated sensor for increased accuracy. It also measures CO and calculates CO/CO2 ratio (The Poison Index) to give complete readings for effective boiler analysis and safety.


  • Measures CO, O2, Inlet & Flue Temperature, Differential Pressure (draft)
  • Calculates NOX, Efficiency, Carbon Dioxide (CO2), Losses, Excess Air, CO/CO2, Poison Index, Net Temperature Differential
  • High suction double-headed diaphragm pump (can be used in flues with suction over 100 mbar without compromising accuracy)
  • Installed memory can store up to 150 readings and can transfer data to a printer or PC (via Infra-red printer link)
  • The printout displays the time and date of each measurement as well as personalized information such as company name and telephone number
  • Long life rechargeable battery & Large 4 line display
  • Optionally, it can also measure either NO2 or SO2 sensors with different measuring ranges
Resolution Accuracy Range
Temp Measurement
Flue Temperature with Probe 0.1

2C 0.3%

32-1112F (0-600C)
Inlet Temperature 0.1

1C 0.3%

32-122F (0-50C)

Pressure 0.1 mbar 2% of full scale 150mbar to -150mbar
Gas Measurement *
Oxygen O2 0.1%


0 to 21%

Carbon Monoxide CO

(H2 compensated)


20ppm <400ppm+

5% <5,000ppm

10% <5,000ppm

0 to 10,000ppm
Carbon Dioxide CO2 * 0.1%


0 to 99.9%
Losses + 0.1%


0 to 99.9%
Efficiency + 0.1%


0 to 99.9%
Excess Air + 0.1%


0 to 2885.0%
Temp (Nett) + 1.0

2C (0.3%)

32-1112F (0-600C)
CO/CO2 Ratio + 0.0001


0 to 0.9999
Poison Index + 0.01%


0 to 99.99

+ Using dry gases at STP
* Calculated

  • Pre-programmed Fuels: Natural Gas, Town Gas, Gascor, Light Oil, Heavy Oil, Propane, Butane, Anthracite, Coke, Coal, Kinsale Gas
  • Dimensions:
    • Handset: 8.7" x 2.2" x 4.7" (220 x 55 x 120mm)
    • Probe Length: 420mm, 8mm Diameter with 285mm stainless steel shaft, type K thermocouple and 1.5m neoprene hose
  • Weight: 2.2 pounds
  • Altitude to 2000m
  • Ambient operating temperature range: 32 to 113F (0 to 45C)
  • Ambient operating humidity range:10 to 90% RH non condensing
  • Power supply (battery charger): Input: 110vAC / 220vAC; nominal Output: 12vAC off load
  • Battery Life: >6 hours from full charge
  • Probe & hose lined with Teflon to reduce absorption of sample gases

Supplied with:

  • CO (H2 Compensated) sensor with range from 0 to 10,000 ppm
  • Oxygen (O2) sensor with a range from 0 to 20.9%
  • Nitric Oxide (NO1) sensor with range from 0 to 5,000 ppm
  • Teflon lined Flue gas probe, Battery & Battery charger
  • Protective rubber boot, User's manual & Large Cordura carrying case
  • One year limited manufacturer's warranty (2 year on O2 sensor)




CO (H2 Compensated) 0~10,000ppm 12933
CO (Hi-Range) 0~10% 13911
NO1 0~5,000ppm 13251*
NO1 low range 0~100ppm 18079*
NO2 0~1,000ppm 10533
SO2 0~5,000ppm 13910
SO2 low range 0~100ppm 18131
*NOX will be calculated only if NO1 sensor is installed.
  • Smoke Pump Test Kit: SPT1
  • Inlet Temperature Probe (6" Liquid K-Type): ATT100
  • Infrared Printer: KMIRP2

Download Data Sheet (PDF format)

Download Users Manual (PDF format)

UPC: 05353350661
Search Category: Hardware > Tools
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Category Combustion Analyzers
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