Engine testing in automobiles and components
MEXA-ONE-FT
FTIR Motor Exhaust Gas Analyzer
The MEXA-ONE-FT Series simultaneously measures concentrations of multiple components, including NH3, N2O, CH4, CO and CO2, in undiluted exhaust gas using the Fourier transform infrared (FTIR) method in combination with a multivariate analysis algorithm. It incorporates HORIBA's proprietary compact interferometer which yields superior performance and high accuracy.
The system complies with NH3 testing requirements of Euro VI, the EU regulation for heavy duty emissions testing.
The MEXA-ONE-FT can be calibrated according to customer requirements with up to 6 component sets to cover a wide range of applications.
FTIR spectroscopy allows the direct measurement of NO2 emissions and the independent quantification of individual hydrocarbon species. This makes the MEXA-ONE-FT system an ideal solution for detailed research and development tasks.
Due to the measurement principle, the time-consuming daily span gas calibration is omitted.
In addition, usability and flexibility are realized by “HORIBA ONE PLATFORM” which enables to extend the system with other ONE analyzers to a complete solution suitable for both certification and R&D purposes.
Segment: Automotive Test Systems
Division: Emission Measurement Systems
Manufacturing Company: HORIBA, Ltd.
Applications
Euro VI compliance "MEXA-ONE-FT-E"
NH3 response time (t10-90): 5 seconds or less
Sampling temperature: 191°C
Simultaneous and continuous measurement of up to 28 components such as NO, NO2, N2O, NH3
・R&D for alcohol-based fuels
・Development of exhaust after-treatment systems
・Measurement of greenhouse gas
Tools for certification tests and R&D
Combined with the MEXA-ONE series, which is used for emission certification test, the MEXA-ONE-FT simultaneously measures NH3 along with various regulated and unregulated exhaust gas components. Options for THC and O2 measurements are available.
Outline
| Model | Standard type: MEXA-ONE-FT Euro VI compliance type: MEXA-ONE-FT-E |
| Conformed standards | CE, FCC, KC |
| Target components and ranges*1 | Maximum 28 components |
| Applications | Emissions performance tests of various engines, evaluation of after-treatment systems, R&D for alcohol-based fuels, Certification of NH3emissions according to Euro VI |
| Principle | Fourier transform infrared spectroscopy (FTIR) |
| Outputs/Inputs | Monitoring on 17-inch LCD |
| Sample line temperature | MEXA-ONE-FT: 113 ± 6ºC |
| Sample gas flow rate | MEXA-ONE-FT: 4.0 ± 0.5 L/min MEXA-ONE-FT-E: 14 ± 1 L/min |
| Operating environment | Ambient temperature: 15 to 35ºC |
System Configuration
| Liquid nitrogen | Replenishing amount: approx. 500 ml (including evaporation) Duration: 10 hours or more (The dewar vacuum must be renewed annually) |
| Power supply voltage | Any of the following power line voltages and frequencies (to be specified when ordering) ・ 100 ± 10 V AC, 50/60 ± 1 Hz, single phase ・ 110 ± 11 V AC, 50/60 ± 1 Hz, single phase ・ 115 ± 11.5 V AC, 50/60 ± 1 Hz, single phase ・ 120 ± 12 V AC, 60 ± 1 Hz, single phase ・ 200 ± 20 V AC, 50/60 ± 1 Hz, single phase ・ 220 ± 22 V AC, 50 ± 1 Hz, single phase ・ 230 (207～250) V AC, 50 ± 1 Hz, single phase ・ 240 (216～250) V AC, 50 ± 1 Hz, single phase |
| Power requirements | Approx. 4.0 kVA as maximum, approx. 3.0 kVA at stable state |
| Dimensions | 655 (W) x 855 (D) x 1970 (H) mm |
| Mass | Approx. 460 kg |
Performance
| Zero noise*2 | Less than 1.0% of full scale |
| Response time*3 (t10-90) | MEXA-ONE-FT: 5 seconds or less when switching from N2 to 200 ppm CO. MEXA-ONE-FT-E: 5 seconds or less when switching from N2 to 200 ppm NH3 |
| Repeatability *4 *5 | Within ±1.0% of full scale |
| Zero drift/span drift*4 *5 | Within ±1.0% of full scale/8 hours |
| Warm-up time | Less than 2 hours after turning on the main power |
Options
| Sample line selector | 8 lines |
| Analog output board | Analog output: 0-10V Max. 16 channels |
| Host communication cable | LAN cable |
| NH3 filter element | Silica fiber (φ19.6 mm x L90 mm) |
| THC measurement | Principle: Heated flame ionization detection (HFID) Measurement range: from 0-10 ppmC to 0-60000 ppmC |
| O2 measurement | Principle: Magnetopneumatic Detector (MPD) Measurement range: from 0-1 vol% to 0-25 vol% |
| Automatic replenishing device for liquid nitrogen | Maximum storage amount: Approx. 12 L |
*1: To be specified when ordering.
*2: The zero noise is defined as the twofold standard deviation of the concentration reading.
*3: Using a sample probe (0.3 m), a heated filter and a heated pipe (6 m) without contamination of the sample line.
*4: Confirmed with 200 ppm CO, 500 ppm CH4 and 200 ppm C2H6.
*5: Span gas with more than 80% of the full scale concentration shall be used.
Catalyst testing in automobiles and components
