On-board Emissions Measurement System
The OBS-ONE PN unit is an on-board emissions measurement system for analyzing the solid particle number concentration within the specified particle size range under real-world driving conditions. The unit uses a condensation particle counter which is recommended principle by the Particle Measurement Programme (PMP), one of working groups affiliated with UNECE.
The PN unit combines with the GAS 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).
◎ Compact dimensions realized by the optimized volatile particle remover and modified CPC.
◎ Isopropyl alcohol as the working fluid: safely and conveniently 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||23 ～ 1,000 nm|
|Measuring Range||0 ～ 5 × 107 particles/cm3|
|Power Supply||DC 24 V|
|Power Consumption (MAX.)||Approx. 0.25 kW|
|Mass||Approx. 18 kg|
|Operating Condition||Temperature: -10 ～ 40 ℃, Altitude: 0 to 2,000 m above sea level, Relative humidity: less than 80% (No condensation)|
|Condensation fluid||Isopropyl alcohol a special grade reagent (99.5%) corresponded|
|Option||Outer cover for mounting outside the vehicle using a hitch carrier|
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