On-board Emissions Measurement System
OBS-ONE is the latest Portable Emissions Measurement System designed for engine/vehicle certification under real road conditions.
It measures concentrations of emissions (CO, CO2, THC, NOx, NO2), particulate matter, air-to-fuel ratio, exhaust flow rate, GPS data, environmental conditions (atmospheric temperature, humidity and pressure) and calculates mass emissions.
OBS-ONE features the highly adaptable, intelligent operating platform called “HORIBA ONE PLATFORM” which integrates other ONE series product data and optimizes test cell operation.
HORIBA has developed broad emission test applications for certification and engine/vehicle R&D, such as simulating a real-world driving event in the test cell with the Test Automation System-STARS. This simulation requires data combined from the OBS-ONE and a drive recorder.
◎ Easy to Install
◎ Stable Operation Over Long Driving Periods
Comprehensive test package includes self-diagnosis, quality check, and sensitivity calibration before testing.
Guides the entire process (preparation, measurement data post processing, etc.) from before to after testing.
[ Real-time Validation and Guidance ]
・Checks measuring data during testing to avoid invalid results
・Driver can concentrate on driving without any operation once measurement is started
◎ Data Post Processing
Complicated process of calculation and analysis made simple
・Suitable calculation and result output for LDV/HDV
・Makes test report for certification
・Shows the camera-recorded drive replay and the GPS map related to measured data
・Complies with ASAM-ODS* standard
※ASAM-ODS: Association for Standardization of Automation and Measuring Systems ｰ Open Data Service
The newly developed software for the OBS-ONE is integrated with the same operating platform as the MEXA-ONE, CVS-ONE and other devices. The intuitive, ergonomic design of the new software platform makes system operation easier. System control and a complete system view of other measurement devices are available from one single display. User support for system operation such as maintenance, alarms, and message functions has been further enhanced.
・Future expandability of PN counting and additional pollutant measurement, etc.
・User-friendly screen configuration and layout offer both measurement efficiency and convenience
Achieving real-world simulation in the test lab
OBS-ONE provides real driving emission test as well as real driving simulation in the test lab by utilizing STARS.
This comprehensive solution ensures accurate emissions data from both real-road and laboratory testing conditions.
|LDV Type||HDV Type|
|NO, NOx, NO2*2||-||●||-||●|
|Exhaust Flow Rate||●||●||●||●|
|Power Requirements||DC 22〜28 V|
(at stable state) *3
|Approx. 0.2 kW||Approx. 0.45 kW|
|Dimensions *4||Approx. W 350 × D 470 × H 330 mm||Approx. W 350 × D 470 × H 470 mm|
|Weight (Main unit)||Approx. 32 kg||Approx. 45 kg|
|Battery *5||Deep-cycle, sealed lead battery of DC 24 V|
35 Ah (5 hour rate),
Operation time ： Approx. 3 hours
|Deep-cycle, sealed lead battery of DC 24 V|
100 Ah (5 hour rate),
Operation time ： Approx. 4.5 hours
|Operating Conditions||Temperature： -10 to 40 deg.C,*6 Relative humidity： less than 80%,|
Altitude： 0 to 2000 m above sea level
★NDIR ： Non Dispersive Infrared Detection
CLD ： Chemiluminescence Detection
FID ： Flame Ionization Detection
|Measurement Principle★||Measurement Range|
|CO||Heated NDIR||0-0.5 to 0-10 vol%|
|CO2||Heated NDIR||0-5 to 0-20 vol%|
|NO/NOx||Heated CLD||0-100 to 0-3000 ppm|
|NO, NOx, NO2||Heated-dual CLD||0-100 to 0-3000 ppm|
|THC||Heated FID||0-100 to 0-10000 ppmC|
|Sampling Method||Wet measurement||-|
|Exhaust Fow Rate*7||Pitot flow meter||0-2.0 to 0-65.0 m3/min|
|Standard Signal Measurements||Exhaust temperature, Exhaust pressure, Atmospheric pressure, Atmospheric temperature, Atmospheric humidity, GPS signal, Speed|
*1 NO/NOx: Switchable measurement
*2 NO, NOx: Simultaneous measurement NO2: Calculation of NO and NOx
*3 Length of heated inlet tube LDV type: 2 m, HDV type: 5 m, Atmospheric temperature: 20 deg.C
*4 Excluding handle and projection
*5 Nickel hydride battery is an optional unit.
*6 Please contact HORIBA if temperature is below 0 deg.C
*7 Exhaust flow rate can be taken by OBD interface unit
・OBD interface unit： Supported ISO15765-4/J1939
・External input unit (EIU)： Analog voltage, Analog current, Thermocouple, Platinum resistance temperature detector, Frequency
・Power supply unit (PS)： Power supplied from AC to system
・Power exchange unit (PE)： Can be changed power supply without being powered off
・Heated bubbler unit: Humidifying unit for H2O interference check and H2O quenching effect check
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