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Equipment

The equipment we use, checked and documented for every job.

Equipment by measurementPM equipmentOnboard equipmentTest bed equipmentResearch equipmentPerformance equipment

Equipment

Equipment by measurement

Which method and equipment we use for each measurement. All of it can be used onboard, and is packed for transport.

    MeasurementMethodOur equipmentReference
    NOxChemiluminescence (CLD)Horiba PG-350 and PG-250, ECO Physics HCLDNTC 2008, Appendix 3, 3.4
    NO2 converterNO2/NO converter, efficiency tested with an ozonatorM&C NO2 converter, Signal NOxgen III for the efficiency testNTC 2008, Appendix 4, section 7
    CO and CO2Non-dispersive infrared (NDIR)Horiba PG-350 and PG-250, Thermo Scientific, Siemens Ultramat 23NTC 2008, Appendix 3, 3.1 and 3.2
    O2Paramagnetic analyzer or electrochemical sensorM&C paramagnetic oxygen analyzer, Horiba PG-350 and PG-250NTC 2008, Appendix 3, 3.5
    SO2Portable gas analyzerHoriba PG-350 and PG-250-
    THCHeated FID, 190 ± 10 °CHoriba MEXA 1170 HFIDNTC 2008, Appendix 3, 3.3
    MethaneHeated FID with non-methane cutterTHC analyzer with non-methane cutterMEPC.414(84)
    N2O and other compoundsFTIRFTIR, up to 50 compoundsMEPC.414(84)
    Particulate matterGravimetricPM system developed by ME-TechISO 8178, 40 CFR Part 1065
    SmokeFilter smoke number (FSN)AVL 415S smoke meterISO 10054, ISO 8178-3
    Engine performanceThermocouples and pressure sensorsCalibrated and documented sensorsNTC 2008, Appendix 4, 1.3 and table 4

    Download the equipment overview (PDF)

    Read moreMeasurements at a glanceCalibration

    PM equipment developed by ME-Tech for a customer

    We developed PM measuring equipment for a customer.

    We start with the task, not the equipment. We choose what the job needs, and when the right setup does not exist, we develop it. The particulate matter (PM) system was sized to the legislation that applies, ISO 8178 and EPA 40 CFR Part 1065, then drawn, built, tested and packed to travel.

    How we developed it

    1. 1Calculated

      All sizes, dimensions and the dilution ratio.

    2. 2Drawn

      The system and its parts, as engineering drawings.

    3. 3Built and tested

      Components chosen to suit travel, built and tested before it leaves.

    4. 4Packed

      In foam-lined cases made for transport.

    5. 5Used onboard

      Taken to the engine, and used for the tests.

    Every step is documented: calculations, drawings and test records.

    The ME-Tech PM equipment rack in its transport case
    Analyzer rack and pump unit
    Insulated heated lines marked ME-Tech.dk at the exhaust funnel
    Dilution tunnel with heating jacket
    Heated lines to the two filter holders
    Two filter holders in parallel, with heating jackets

    What the PM system consists of

    Dilution tunnelVenturiCO2 analyzerFilter holders and filtersGas volume flow metersPump unit
    Principle drawing of a Venturi tubePrinciple drawing of a filter holderPrinciple drawing of a dilution tunnel

    MET-VT-001 Venturi tube, general principle  |  MET-FH-001 Filter holder  |  MET-DT-002 Dilution tunnel

    See the measurement case

    Equipment

    Onboard equipment

    Portable analyzers, sampling and conditioning.

    Portable analyzers

    Horiba PG-350 and PG-250 portable analyzers measure NOx, CO, CO2 and O2. They are built into transport racks and set up onboard by our technicians.

    • Horiba PG-350 and PG-250
    • NOx by CLD, CO and CO2 by NDIR
    • Built into transport racks
    Onboard equipment | The setup in action

    THC and methane

    A Horiba THC analyzer with a heated FID measures total hydrocarbons. With a non-methane cutter it measures methane slip, following MEPC.414(84).

    • Horiba heated FID analyzer
    • Non-methane cutter for methane slip
    • Reference method in MEPC.414(84)
    Horiba MEXA-1170 HFID flame ionization analyzer with the flame onOnboard equipment | Horiba MEXA 1170 HFID

    Sampling and conditioning

    Winkler heated lines, up to 190 °C, carry the sample to the analyzers that measure hot: the heated FID for THC and the ECO Physics HCLD for NOx. For the Horiba PG-350, the sample passes the NO2 converter and is then cooled in a gas cooler, so that water does not cause cross-sensitivity in the analyzer. A pre-filter is part of every setup.

    • Winkler heated lines up to 190 °C, to the heated FID and the ECO Physics HCLD
    • NO2 converter (M&C), then gas cooler (M&C) for the analyzers that measure cold
    • Heated sampling pump up to 190 °C
    • Temperature controllers (Winkler, Eltherm and CKE K1A)
    • Pre-filter in every setup
    ME-Tech analyzer setup with conditioning unit and portable analyzer onboardOnboard equipment | Analyzer setup

    The rules

    NTC 2008, chapter 6, gives the procedures for demonstrating compliance onboard, and Appendix 3 gives the specifications for the analyzers.

    • NTC 2008, chapter 6: onboard procedures
    • NTC 2008, Appendix 3: analyzers
    • Calibrated before use, see Calibration
    NOx analyzer in its transport case with laptopOnboard equipment | NOx analyzer
    Read moreCalibration of analyzers

    Equipment

    Test bed equipment

    The full gaseous bench for certification and development work.

    Full gaseous bench

    For the test bed we use CLD analyzers (ECO Physics), NDIR analyzers (Thermo Scientific and Siemens Ultramat 23), the M&C paramagnetic oxygen analyzer and a heated FID, with gas coolers from M&C. All of it can also be packed and used onboard.

    • CLD (ECO Physics)
    • NDIR (Thermo Scientific and Siemens Ultramat 23)
    • M&C paramagnetic oxygen analyzer and heated FID
    Engine test facilityTest bed equipment | Test bed

    Sampling and conditioning

    The sample is conditioned in the same way as onboard: heated lines and a heated sampling pump for the analyzers that measure hot, and an NO2 converter and a gas cooler for the analyzers that measure cold.

    • Heated lines and pump up to 190 °C
    • NO2 converter and gas cooler (M&C)
    • As described under Onboard equipment

    Our equipment or yours

    On the test bed we can use our own equipment, or work with the equipment that the test bed already has.

    • Our equipment or yours
    • Calibrated and documented

    The rules

    NTC 2008, chapter 5, gives the procedures for NOx emission measurements on a test bed. The engine is tested to ISO 8178 and the NTC.

    • NTC 2008, chapter 5: test bed procedures
    • ISO 8178
    • Test report for the Technical File

    Documented

    Every test is documented, from the calibration of the analyzers to the test report.

    • Calibration certificates
    • Test report

    Equipment

    Research equipment

    FTIR, smoke and particulates.

    FTIR

    The FTIR measures up to 50 compounds in the exhaust, including N2O, unburnt methanol and formaldehyde.

    • Up to 50 compounds
    • N2O, methanol and formaldehyde
    • Reference for N2O in MEPC.414(84)
    FTIR analyzerResearch equipment | FTIR

    Filter smoke number

    An AVL smoke meter measures the filter smoke number, from which black carbon can be derived.

    • AVL 415S smoke meter
    • ISO 10054 and ISO 8178-3
    • Black carbon per MEPC.394(82)

    Particulate matter

    Particulates are measured gravimetrically with the PM system we developed, following ISO 8178 and EPA 40 CFR Part 1065.

    • Gravimetric PM
    • ISO 8178 and 40 CFR Part 1065
    • See PM equipment

    Equipment

    Performance equipment

    Temperature and pressure for engine performance.

    Engine performance sensors

    Thermocouples and pressure sensors for engine performance measurements, calibrated and documented together with the emission measurements.

    • Thermocouples
    • Pressure sensors
    • ELMA 712 differential thermometer
    • Digitron 2023P handheld pressure meter
    • Calibrated and documented
    Instrumented turbocharger with thermocouples for engine performance measurementsPerformance equipment | Instrumented turbocharger
    Dial gauge used to check the injection timing on the enginePerformance equipment | Injection timing

    Ambient instruments

    Ambient pressure, temperature and humidity are measured with instruments that are calibrated separately from the engine sensors.

    • Testo 511, for ambient pressure
    • Testo 440 and Testo dp440
    • Vaisala ambient analyzer, for pressure, temperature and humidity
    • HygroPalm
    • Calibrated before use

    The rules

    NTC 2008, Appendix 4, section 1.3 and table 4, give the permissible deviations and the calibration validity period of the instruments.

    • NTC 2008, Appendix 4, 1.3 and table 4
    • Calibration certificate for each instrument
    Read moreCalibration of engine performance sensors

    Need the right equipment onboard?

    We bring it, set it up and run it.

    Contact us