OBS-ONE GS Unit

On-board Emissions Measurement System

Total System for Regulation Compliance and Engine/Vehicle R&D

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.

Segment: Automotive
Manufacturing Company: HORIBA, Ltd.

“Simple and Flexible”
Safe, User-friendly System

◎ Easy to Install

  • Easily mounted on any vehicle (modular ad front access design)
  • One-touch fitting for module and cable connections

 

◎ Stable Operation Over Long Driving Periods

  • Low power consumption for long operation
  • Battery can be changed to AC power supply or backup battery without being powered off by using power exchange unit

 

◎ Safe

  • Safe in real driving without bottles (LDV type)
  • Equipped with emergency button to stop power and gas supply

 

◎ Accurate

  • Accurate over a variety of environmental variables (atmospheric temperature, atmospheric pressure, vibration)* 
  • UPS (Uninterruptible Power Supply) protects measurement data in the case of the battery cut-off unexpected
    *Please refer to the specification

System Configuration

Certification Test for RDE and US EPA CFR 1065 Regulation

Complies with the latest regulation requirements

PEMS Applications

◎ Measurement
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

Integrated Operation Software “HORIBA ONE PLATFORM”

Integrated Device Management Controller (DMC) with HORIBA ONE series products

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

R&D for Engine, Powertrain and Chassis

Achieving real-world simulation in the test lab

Test Lab x Real-world

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 TypeHDV Type
OBS-ONE
-GS01
OBS-ONE
-GS02
OBS-ONE
-GS11
OBS-ONE
-GS12
CO
CO2
NO/NOx *1--
NO, NOx, NO2*2--
THC--
Exhaust Flow Rate
Power RequirementsDC 22〜28 V
Power Consumption
(at stable state) *3
Approx. 0.2 kWApprox. 0.45 kW
Dimensions *4Approx. W 350 × D 470 × H 330 mmApprox. W 350 × D 470 × H 470 mm
Weight (Main unit)Approx. 32 kgApprox. 45 kg
Battery *5Deep-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 ConditionsTemperature: -10 to 40 deg.C,*6 Relative humidity: less than 80%,
Altitude: 0 to 2000 m above sea level

 

Analyzers and Sensors

★NDIR : Non Dispersive Infrared Detection
 CLD : Chemiluminescence Detection
 FID : Flame Ionization Detection

 Measurement PrincipleMeasurement Range
COHeated NDIR0-0.5 to 0-10 vol%
CO2Heated NDIR0-5 to 0-20 vol%
NO/NOxHeated CLD0-100 to 0-3000 ppm
NO, NOx, NO2Heated-dual CLD0-100 to 0-3000 ppm
THCHeated FID0-100 to 0-10000 ppmC
Sampling MethodWet measurement-
Exhaust Fow Rate*7Pitot flow meter0-2.0 to 0-65.0 m3/min
Standard Signal MeasurementsExhaust 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

<Option>
・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

RDE Test with Portable Emission Measurement System (PEMS)
RDE Test with Portable Emission Measurement System (PEMS)
In 2016 the European Commission´s (EC) Member States agreed on new procedures and requirements for light-duty vehicle type approval certification introducing Portable Emission Measurement System (PEMS) for vehicle testing on the road.
RDE tests on the chassis dynamometer
RDE tests on the chassis dynamometer
Real driving emissions with RDE CoDriver
Real driving emissions with RDE CoDriver
Real Driving Emission (RDE) tests confirm the results produced during an emissions test on a chassis dynamometer to ensure that vehicles meet the set limits in the real world.
RDE Testing for Non-Road Mobile Machinery (NRMM)
RDE Testing for Non-Road Mobile Machinery (NRMM)
After the introduction of Real Driving Emission (RDE) tests for light- and heavy-duty vehicles, focus is now also shifting to the area of non-road mobile machinery (NRMM).

Request for Information

Do you have any questions or requests? Use this form to contact our specialists.

* These fields are mandatory.

Product accessories

OBS-ONE RE
OBS-ONE RE

Protection Case for Testing Heavy-Duty and Non-Road Mobile Machinery

Related products

CVS-ONE
CVS-ONE

Constant Volume Sampler

FTX-ONE-CL
FTX-ONE-CL

FTIR Exhaust Gas Analyzer Dilute Measurement Type

FTX-ONE-CS/RS
FTX-ONE-CS/RS

FTIR Exhaust Gas Analyzer Direct Measurement Type

MDLT-ONE
MDLT-ONE

Micro Dilution Tunnel

MEDAS
MEDAS

Dynamic Altitude Simulation

MEDAS Humidity Module
MEDAS Humidity Module

Altitude Simulator

MEDAS Temperature Module
MEDAS Temperature Module

Altitude Simulation

MEXA-1300R
MEXA-1300R

Motor Exhaust Gas Analyzer

MEXA-2000SPCS series
MEXA-2000SPCS series

Solid Particle Counting System

MEXA-ONE
MEXA-ONE

Motor Exhaust Gas Analyzer

MEXA-ONE-QL-NX
MEXA-ONE-QL-NX

Laser Spectroscopic Motor Exhaust Gas Analyzer

OBS-ONE PM unit
OBS-ONE PM unit

On-board Emissions Measurement System

OBS-ONE PN Unit
OBS-ONE PN Unit

On-board Emissions Measurement System

OBS-ONE RE
OBS-ONE RE

Protection Case for Testing Heavy-Duty and Non-Road Mobile Machinery

OBS-ONE SPN10 Unit
OBS-ONE SPN10 Unit

On-board SPN10 measurement for real-world

OBS-ONE-XL (IRLAM)
OBS-ONE-XL (IRLAM)

On-board NH3/N2O Measurement System for real-world driving

PTFM-1000V2
PTFM-1000V2

Pitot Tube Exhaust Flow Meter

PTFM-ONE-DT
PTFM-ONE-DT

Dual Pitot Tube Exhaust Flow Meter

Torque Matching
Torque Matching

Road-to-Rig Chassis Dyno Replication

51 series
51 series

Explosion-proof Gas Analyzer

AP-370 Series
AP-370 Series

Air Pollution Monitor

APCA-370
APCA-370

Ambient Carbon Dioxide Monitor

APHA-370
APHA-370

Hydrocarbon Monitor / THC Analyser

APMA-370
APMA-370

Ambient Carbon Monoxide Monitor

APNA-370
APNA-370

Ambient NOx Monitor

APNA-370/CU-2
APNA-370/CU-2

Ambient Ammonia Monitor

APOA-370
APOA-370

Ambient Ozone Monitor

APSA-370
APSA-370

Ambient Sulfur Dioxide Monitor

APSA-370/CU-1
APSA-370/CU-1

Ambient Hydrogen Sulfide Monitor

AQMS
AQMS

Ambient Air Quality Monitoring System

CEMS
CEMS

Continuous Emission Monitoring System

ENDA-5000 series
ENDA-5000 series

Stack Gas Analysis System

FTX-ONE-CL
FTX-ONE-CL

FTIR Exhaust Gas Analyzer Dilute Measurement Type

FTX-ONE-CS/RS
FTX-ONE-CS/RS

FTIR Exhaust Gas Analyzer Direct Measurement Type

GA-370
GA-370

Trace Gas Monitor

GI-700 series
GI-700 series

Stack Gas Analyzer

IR-300
IR-300

Vapor Concentration Monitor

IR-400
IR-400

High-grade type Gas Monitor for Chamber Cleaning End Point Monitoring

MEXA-1170HCLD
MEXA-1170HCLD

Heated Type NOx Analyzer

MEXA-1170HFID
MEXA-1170HFID

Heated Type THC Analyzer

MEXA-1170SX
MEXA-1170SX

Motor Exhaust Gas Sulfur Analyzer

MEXA-1300R
MEXA-1300R

Motor Exhaust Gas Analyzer

MEXA-584L
MEXA-584L

Automotive Emission Analyzer

MEXA-ONE
MEXA-ONE

Motor Exhaust Gas Analyzer

MEXA-ONE-FT
MEXA-ONE-FT

FTIR Motor Exhaust Gas Analyzer

MEXA-ONE-QL-NX
MEXA-ONE-QL-NX

Laser Spectroscopic Motor Exhaust Gas Analyzer

OBS-ONE-XL (IRLAM)
OBS-ONE-XL (IRLAM)

On-board NH3/N2O Measurement System for real-world driving

PG-300 series
PG-300 series

Portable Gas Analyzer

Process
Process

Process Analyzer System

TX-100
TX-100

Tunable Laser Gas Analyzer

VA-5000 / VA-5000WM Series
VA-5000 / VA-5000WM Series

Multi-Component Gas Analyzer

51 series
51 series

Explosion-proof Gas Analyzer

AP-370 Series
AP-370 Series

Air Pollution Monitor

AP-380 Series
AP-380 Series

Air Quality Monitor

APCA-370
APCA-370

Ambient Carbon Dioxide Monitor

APMA-370
APMA-370

Ambient Carbon Monoxide Monitor

APNA-370
APNA-370

Ambient NOx Monitor

APNA-370/CU-2
APNA-370/CU-2

Ambient Ammonia Monitor

BE-150
BE-150

OEM gas (CO/HC) analyzer

BE-220FSD
BE-220FSD

OEM gas (NO) analyzer

CEMS
CEMS

Continuous Emission Monitoring System

EMGA-921
EMGA-921

Hydrogen Analyzer

EMGA-Expert
EMGA-Expert

Oxygen/Nitrogen/Hydrogen Analyzer
(Flagship High-Accuracy Model)

EMGA-Pro
EMGA-Pro

Oxygen/Nitrogen Analyzer (Entry Model)

EMIA-Expert
EMIA-Expert

Carbon/Sulfur Analyzer
(Flagship High-Accuracy Model)

EMIA-Pro
EMIA-Pro

Carbon/Sulfur Analyzer (Entry Model)

EMIA-Step
EMIA-Step

Carbon/Sulfur Analyzer (Tubular Electric Resistance Heating Furnace Model)

ENDA-5000 series
ENDA-5000 series

Stack Gas Analysis System

ENDA-7000 Series
ENDA-7000 Series

Stack Gas Analyzer

GA-370
GA-370

Trace Gas Monitor

GI-700 series
GI-700 series

Stack Gas Analyzer

IR-300
IR-300

Vapor Concentration Monitor

IR-400
IR-400

High-grade type Gas Monitor for Chamber Cleaning End Point Monitoring

LO-300
LO-300

Laser scanning oil film detector

MEXA-1300R
MEXA-1300R

Motor Exhaust Gas Analyzer

MEXA-584L
MEXA-584L

Automotive Emission Analyzer

MEXA-ONE
MEXA-ONE

Motor Exhaust Gas Analyzer

OBS-ONE-XL (IRLAM)
OBS-ONE-XL (IRLAM)

On-board NH3/N2O Measurement System for real-world driving

OCMA-500
OCMA-500

Oil content analyzer

OCMA-550
OCMA-550

Oil content analyzer

PG-300 series
PG-300 series

Portable Gas Analyzer

TCA-5000
TCA-5000

Hydrogen Gas Analyzer

TX-100
TX-100

Tunable Laser Gas Analyzer

VA-5000 / VA-5000WM Series
VA-5000 / VA-5000WM Series

Multi-Component Gas Analyzer

Corporate