CT2100 On Stack Gas Analyser

On Stack Gas Analyser

Cascade’s CT2100 system monitors in real time NO, NO2, SO2, CH4, H2O, CO and CO2 levels in ambient environments of up to 70°C and gas temperatures of 190°C. The CT2100 is installed at the measurement point (in a stack or duct) and can be configured to maintain a flow of gas at constant temperature and pressure within the sample cell. Applications for this system include ship emissions monitoring, power plant emissions monitoring, engine management, engine combustion tools, engine health management and carbon trading.

Multicomponent measurement capability

  • NO, NO2, SO2, CH4, H2O, CO and CO2 

Accuracy combined with large dynamic range

  • Excellent immunity to cross interference
  • ppm to % measurement capability

Low maintenance and low lifetime cost

  • All solid state
  • No moving parts

Robust and easy to install

  • Insensitive to turbulence and vibration
  • Inherent long term stability minimises requirements for regular calibration checks

Inline and online sampling cell

  • Large area sintered stainless steel filter
  • Automatic purge

Marine type approvals

  • ABS 2010 rules 1.1 appendix 3
  • MARPOL annex VI
  • NOX technical code (2008)
  • MEPC.184(59)2009
  • IACS-E10
  • EC MED 96/98/EC-A.1/2.8
  • NOR - TAX


  • Ship emissions monitoring
  • Power plants emissions monitoring
  • Engine management
  • Engine combustion tools
  • Engine health monitoring
  • Carbon trading
  • Value CT2100
    Application On stack analyser
    Measurement technique MidIR absorption spectroscopy
    Mid IR source Quantum cascade laser [up to 4 Laser]
    Laser classification CLASS 1
      BS EN 60825-1:2007 Safety of laser products equipment
      classification and requirements (identical to IEC 60825-1
    Repeatibility ± 2%
    Accuracy ± 2%
    Linearity R2 > 0.999
    Measurement rate Up to 10Hz
    Temperature range -20 to 70°C Ambient
    Sample gas temperature range Up to 450°C
    Humidity range 10 to 95%
    Protection class IP20
    Probe temperature +180°C heated
    Inputs and Outputs  
    Analogue signal out 6 x 4-20mA measurement output [option]
    Analog signal in -
    Digital signal out -
    Digital signal out Modbus TCP , 100Base T Ethernet
    Inlet gas port connector On stack sample probe attached
    Exhaust gas port connector Direct return to stack
    Electrical Rating  
    Power supply 120VAC 60Hz / 240VAC 50Hz 200VA
    Size 361 x 406 x 354mm (HxWxD) sensor only
    Weight 27 kg [probe and sensor]
    Installation Direct stack mounted
  • Name Symbol Units Range LOD
    Nitric oxide NO ppm 2000 20
    Nitrogen dioxide NO2 ppm 300 3
    Carbon monoxide CO ppm 5000 10
    Carbon dioxide CO2 % 15 0.1
    Sulphur dioxide SO2 ppm 1750 17.5
    Methane CH4 ppm 5000 20
    Water H2O % 20 0.5
    Nitrous oxide N2O ppm 5000 50
    Ammonia      NH3 ppm 2000 20
    Formaldehyde HCHO ppm 2000 20
    Hydrogen peroxide H2O2 ppm 10,000 100
    Ethyne C2H2 ppm 2000 20
    Ethene C2H4 ppm 1000 10
    Ethane C2H6 ppm 1000 10
    Propane C3H8 ppm 2000 20
    Butane C4H10 ppm 2000 20
    Methanol CH3OH ppm 3000 30
    Nitromethane CH3NO2 ppm 2000 10


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