MEXA-2000SPCS series

MEXA-2000SPCS - Solid Particle Counting System
MEXA-2000SPCS - Engine Vehicle Certification Testing
MEXA-2000SPCS - Partial Flow Dilution Tunnel

Solid Particle Counting System

The HORIBA MEXA-2000SPCS series measures the number of solid particles from engine exhaust gas in real-time.
The series can complete engine/vehicle certification testing in the latest
regulations (Euro 5/6 and Euro VI), which requires complied dilution systems,
along with R&D testing of engines and particulate filters by direct sampling
without dilution.

  • Certification tests for Euro 5/6 and Euro VI
    MEXA-2000 / 2200SPCS
  • Tests with a partial flow dilution tunnel connected
    MEXA-2200 / 2300SPCS
  • R&D tests with high pressure direct sampling
    MEXA-2100 / 2300SPCS
Manufacturing Company: HORIBA, Ltd.

Line-ups

  • Certification Tests
ModelsCategoriesRegulationsSampling methods *1
MEXA-2000SPCSLDVEuro 5/6Full Flow Tunnel-
MEXA-2100SPCS *2HD EngineEuro VIFull Flow Tunnel-
MEXA-2200SPCS *3LDVEuro 5/6Full Flow Tunnel-
MEXA-2300SPCS *2 *3HD EngineEuro VIFull Flow TunnelPartial Flow Tunnel

*1: When ordering, please specify intended applications and expected sampling methods.
*2: Direct sample gas should be supplied to SPCS without pre-classifier or hatted probe.
*3: With high-accuracy sample return function for connecting to a partial flow tunnel. (R49 compliant)

  • R&D, Performance Evaluation
ModelsCategoriesSampling methods *1
MEXA-2000SPCSLDV / HD EngineNormal Pressure
Direct Sampling *2
Full Flow Tunnel-
MEXA-2100SPCSLDV / HD EngineHigh Pressure
Direct Sampling *3
Full Flow Tunnel-
MEXA-2200SPCSLDV / HD EngineNormal Pressure
Direct Sampling *2
Full Flow TunnelPartial Flow Tunnel
MEXA-2300SPCSLDV / HD EngineHigh Pressure
Direct Sampling *3
Full Flow TunnelPartial Flow Tunnel

*1: When ordering, please specify intended applications and expected sampling methods.
*2: Direct sampling at a pressure less than 5 kPa is possible. Acceptable maximum concentration is limited to the same value as the full flow tunnel.
*3: A DSU predilution unit with pressure adjusting function realizes direct sampling for high pressure applications of up to 100 kPa.

  • Compact design

• Easy to install and transport in a laboratory
• Small footprint 

        
     
       
 
  • High performance sampling system

The set DF is not affected by changes in sample pressure in the CVS or
sampling system. The VPR *1 calibration factor (PCRF *2) can be used
for many applications without specific calibration/correction of the diluters
in VPR.
*1 VPR: Volatile Particle Remover
*2 PCRF: Particle Concentration Reduction Factor

  • Various optional units

The combination of the main unit and optional units allows a wide range of applications and sampling configurations.

 For Measurement
Optional UnitsFunctions2000210022002300
Cyclone Unit (CYU) *1External CycloneBuilt-inBuilt-in
Sample Return Unit (SRU)Returning sample to CVS×××
Cooler Unit (CLU) *2Cooling detector (CPC) for high temperature conditions

For Performance Check
Optional UnitsFunctions2000210022002300
Dilution Factor Checker (DFC)Dilution factor check and flow rate calibration
Linearity Check Unit (LCU)Generating solid particles for linearity check
and penetration efficiency check
Volatile-particle Generation Unit (VGU)Generating particles for removal efficiency
check of evaporation tube

*1: For MEXA-2000/2200SPCS, select a hatted probe or an external cyclone unit set at full flow tunnel side.
*2: Mounted in an optional 19-inch cabinet with main unit.

  • High accuracy dilution

Reliable diluter developed by HORIBA Group
  Patent number: 7201071(US)

  • Dedicated particle number counting

Fully integrated system for stand-alone operation with the comprehensive
data logging functions. Also available for operation with host CPU control
using the AK-LAN host interface.

ModelsMEXA-2000SPCSMEXA-2100SPCSMEXA-2200SPCSMEXA-2300SPCS
Conformed standardsUN/ECE Regulation No. 83 (Rev. 4)
UN/ECE Regulation No. 49 (Rev. 6)*1
-UN/ECE Regulation No. 83 (Rev. 4)
UN/ECE Regulation No. 49 (Rev. 6)
-*2
Measuring principleLaser scattering condensation particle counting (CPC)
Lower particle size limitCounting efficiency of 23 nm particles: 50 % ±12 %, Counting efficiency of 41 nm particles: 90 % or more
Measuring components and rangeNumber concentration of solid particles; 0 – 10000 up to 0 – 50000 particles/cm3 (after internal dilution) *3
Sample handling temperature52 °C or less (Dilute sampling)Maximum permissive temperature
(Direct sampling) 350 °C *4
52 °C or less (Dilute sampling)Maximum permissive temperature
(Direct sampling) 350 °C *4 
Diluted sample temperaturePrimary diluter (PND1):
191 °C ± 10 °C
Evaporation tube (ET):
350 °C ± 10 °C
Secondary diluter (PND2):
35 °C or less
Pre-classifier: 47 °C ± 5 °C
Primary diluter (PND1):
191 °C ± 10 °C
Evaporation tube (ET):
350 °C ± 10 °C
Secondary diluter (PND2):
35 °C or less
Primary diluter (PND1):
191 °C ± 10 °C
Evaporation tube (ET):
350 °C ± 10 °C
Secondary diluter (PND2):
35 °C or less
Pre-classifier: 47 °C ± 5 °C
Primary diluter (PND1):
191 °C ± 10 °C
Evaporation tube (ET):
350 °C ± 10 °C
Secondary diluter (PND2):
35 °C or less
Dilution factors in diluters Primary diluter (PND1):
10 to 200 *3
Secondary diluter (PND2): 15
Diluter in DSU: 10
Primary diluter (PND1):
10 to 200 *3
Secondary diluter (PND2): 15
Primary diluter (PND1):
10 to 200 *3
Secondary diluter (PND2): 15
Diluter in DSU: 10
Primary diluter (PND1):
10 to 200 *3
Secondary diluter (PND2): 15
PCRF0.95 < fr (30 nm) / fr (100 nm) < 1.3, 0.95 < fr (50 nm) / fr (100 nm) < 1.2
Volatile particle removal efficiency99% or more, for C40 (30 nm of particle size, and 10000 particles/cm3 or more)
Accuracy of dilution factorWithin ± 10 % of nominal dilution factor setting (for VPR total dilution factor of 150 to 3000, gas based)
Operating environmentWithout CLU (standard): Ambient temperature: 5 °C to 30 °C, Ambient humidity: 80 % or less as relative humidity
With CLU (optional): Ambient temperature: 5 °C to 45 °C, Ambient humidity: 80 % or less as relative humidity
Power supply voltage and frequency200/220/230/240 V AC (±10 %, max. 250 V), 50/60Hz (±1.0 Hz), single phase (to be specified at ordering)
Power requirementsMain unit: Max. 2.3 kVA
Main unit and all optional units: Max. 4.5 kVA
Main unit: Max. 2.5 kVA
Main unit and all optional units: Max. 4.4 kVA
Main unit: Max. 2.4 kVA
Main unit and all optional units: Max. 4.3 kVA
Main unit: Max. 2.6 kVA
Main unit and all optional units: Max. 4.5 kVA
Dimensions (excluding any projections) /Mass  
Main unit
(without transfer tube, control unit and optional units)
434(W)×731(D)×637(H) mm
Approx. 115 kg
434(W)×845(D)×637(H) mm
Approx. 120 kg
434(W)×910(D)×637(H) mm
Approx. 140kg
434(W)×910(D)×637(H) mm
Approx. 145 kg
Optional units *5                                        CYU: Approx. 290(W)×146(D)× 236(H) mm Approx. 4 kg
                                        SRU: Approx. 300(W)×550(D)× 450(H) mm Approx. 35 kg
                                        CLU: Approx. 570(W)×850(D)×1227(H) mm Approx. 80 kg (for CLU and optional cabinet)
                                        DFC: Approx. 464(W)×550(D)× 320(H) mm Approx. 38 kg
                                        LCU: Approx. 350(W)×690(D)× 670(H) mm Approx. 35 kg
                                        VGU: Approx. 550(W)×300(D)× 450(H) mm Approx. 20 kg 


*1: Only for full flow tunnel.
*2: MEXA-2300SPCS can be used in the measurement method according to the regulation. For detailed information, please contact HORIBA.
*3: Dilution factor of the system should be determined so that the particle concentration after dilution fits into the measuring range.
*4: Allowable range of gas temperature at sample probe inlet depends on the sampling condition, because it is limited as the temperature of diluter in DSU (350 °C or less). For detailed information, please contact HORIBA.
*5: The dimensions depend on customers.

RDE tests on the chassis dynamometer
RDE tests on the chassis dynamometer
Engine testing in automobiles and components
Engine testing in automobiles and components
Catalyst testing in automobiles and components
Catalyst testing in automobiles and components
Brake Dust Measurement
Brake Dust Measurement
A series of legislative measures has significantly reduced the amount of emissions that is being emitted by internal combustion engines of light and medium-duty vehicles.
Particle Measurement in the Sub-23nm Range
Particle Measurement in the Sub-23nm Range
Concerns exist that advances in modern engine technology may contribute to large portions of solid particles at sizes smaller than 23nm. The EU Joint Research Center has confirmed this concern in several investigations.

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