
On-board Emissions Measurement System for SPN10
The OBS-ONE SPN10 unit is an on-board emissions measurement system for analyzing the SPN10 (solid particle number emissions >10 nm) under real-world driving conditions. It meets the latest trends in particle number regulations in the future.
The SPN10 unit combines with the GAS unit and the NH3/N2O unit to measure the specified exhaust gas components, along with the exhaust gas flow rate, the GPS position, and the atmospheric conditions (temperature, humidity, pressure).
◎ High accuracy SPN10 measurement with CPC for proposed future regulations
◎ High precision and compact dimensions realized by the optimized pre-conditioning unit
◎ Improved testing efficiency with automatic zero check function (patent applied)
◎ Isopropyl alcohol as the working fluid : Safely used by saturation of a small cartridge during test preparation - no reservoir required
◎ User-friendly design mounts easily on any vehicle
The OBS-ONE and other HORIBA ONE series systems employ a common user interface with future expandability. Control, monitoring and management of each emission measurement device and each module unit of OBS-ONE series can be integrated into a single controller.
Measuring Principles | Condensation particle counter (CPC) |
Particle Diameter | 10 ~ 1,000 nm |
Measuring Range | 0 ~ 5 × 107 particles/cm3 |
Power Supply | DC 24 V |
Power Consumption (MAX.) | Approx. 0.40 kW |
Mass | Approx. 17 kg |
Operating Condition | Temperature*: -10 ~ 40 ℃, Altitude: 0 to 2,500 m above sea level, Relative humidity: less than 80% (No condensation) |
Condensation fluid | Isopropyl alcohol : minimum 99.5 % purity |
Option | Outer cover for mounting outside the vehicle using a hitch carrier |
*Surrounding temperature in setting position is 0 to 40 deg C.
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