CEMS solutions

Safely on the right course

Your Benefits

  • High levels of availability and reliability
  • Modules that are easy to replace during servicing
  • Low costs due to minimal maintenance requirements
  • Servicing support is available globally
  • Quick access to expert support with remote maintenance
  • No expensive test gases thanks to its certified internal drift correction
  • Equipped for existing and future requirements thanks to its rugged design and high level of measurement accuracy


Safely on the right course

The MARSIC300 ship emissions measuring device from SICK is an innovative solution for reliably measuring emissions on ships according to MARPOL Annex VI and IMO MEPC. The MARSIC300 is type-approved for this application by well-known classification organizations. The MARSIC300 measures both SOx and CO2 upstream and downstream of the scrubbers, and NOx upstream and downstream of SCR (selective catalytic reduction) plants. In addition, it can also be used for process gas measurements such as CH4 in LNG (liquefied natural gas) and dual-fuel engines.

As a leading manufacturer of emissions measurement technology, SICK is offering the MARSIC300 as a compact complete system. Designed to be used on ships, the measuring device boasts extremely low maintenance costs and modules that are easy to replace.

At a glance
  • Rugged design and high level of measurement accuracy
  • Type-approved by well-known classification organizations in accordance with MARPOL Annex VI and IMO MEPC
  • Measuring ranges adapted to low and high concentrations of SO2 and NOx
  • Up to 8 measuring components at the same time: SO2, CO2, CO, NO, NO2, NH3, CH4, H2O



Service & Support

Technical overview


Please note: The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.

  • MARSIC300 system

    MARSIC300 system

    Measured valuesCO2, SO2, NO, NO2, CO, CH4, NH3, H2O
    Measurement principlesNDIR spectroscopy
    Spectral range
    2,000 nm ... 11,000 nm
    Measuring distance
    8.5 m
    Gas flow rate
    200 l/h ... 300 l/h
    Measuring ranges
    CO20 ... 25 Vol.-%
    SO20 ... 30 ppm / 0 ... 2,000 ppm
    NO0 ... 300 ppm / 0 ... 2,000 ppm
    NO20 ... 200 ppm / 0 ... 500 ppm
    CO0 ... 200 ppm / 0 ... 2,000 ppm
    CH40 ... 500 ppm / 0 ... 10,000 ppm
    NH30 ... 50 ppm / 0 ... 500 ppm
    H2O0 ... 40 Vol.-%
    Response time (t90)
    ≤ 140 s
    Including sample gas path and gas sampling unit
    < 2 %
    Of measuring range full scale
    Sensitivity drift
    < 2 %: of measuring range full scale per week
    Zero point drift
    < 2 %: of measuring range full scale per week
    Reference point drift
    < 2 %: of measuring range full scale per week
    Detection limit
    < 2 %: of measuring range full scale
    Process temperature
    +10 °C ... +550 °C
    Process pressure
    –20 hPa ... 200 hPa
    Dust load
    ≤ 200 mg/m³
    Ambient temperature
    0 °C ... +50 °C
    Type approved up to 45 °C
    Storage temperature
    –20 °C ... +70 °C
    Ambient pressure
    900 hPa ... 1,100 hPa
    Ambient humidity
    ≤ 90 %

    MARPOL Annex VI and NTC 2008 – MEPC.177(58)

    Guidelines for exhaust gas cleaning systems – MEPC.184(68)

    Guidelines for SCR reduction systems – MEPC.198(62)

    DNV GL Rules for Type Approvals (2012)

    IACS E10 and Rules of major classification societies

    Electrical safetyCE, Rules of major classification societies
    Enclosure rating
    Communication interface




    Type of fieldbus integrationTCP
    FunctionConnection to OPC server
    LC display
    Status LEDs: "Power", "Maintenance request" and "Fault"
    InputFunctional keys
    OperationVia LC display or SOPAS ET software, multiple operating levels, password-protected
    Dimensions (W x H x D)
    600 mm x 1,300 mm x 434 mm (for details see dimensional drawings)
    120 kg
    Material in contact with mediaStainless steel 1.4547, PTFE, aluminium, coated
    Power supply
    Three-phase current3-phase: 115 V, 50/60 Hz
    3-phase: 208 V, 50/60 Hz
    3-phase: 230 V, 50/60 Hz
    Special configurations with minimal equipment are also possible
    Current consumptionAt 230 V AC: ≤ 14 A
    Power consumptionAnalyzer unit: ≤ 1,000 W
    Gas sampling unit: ≤ 750 W
    Sample gas line, heated: ≤ 90 W/m
    Compressed air≤ 1,300 l/h
    Instrument air: 5 ... 7 bar; particle size max. 1 µm; oil content max. 0.1 mg/m³; pressure dew point max. –40 °C
    Sample gas connections
    Clamping ring fitting for 6 mm pipes
    Auxiliary gas connections
    Compressed airHose connector DN 6/8 and DN 8/10
    Test gasHose connector DN 6/8
    Corrective functions

    Drift correction and optical monitoring function via adjustment cell

    Automatic zero point adjustment with instrument air

    System components

    Sampling probe, heated, including filter unit

    Sample gas line, heated (max. 35 m)

    Analyzer unit

    Integrated components

    Ejector pump

    Pressure sensors

All technical data can be found accompanying the individual product