On-board Emissions Measurement System for NH3/N2O

On-Board Systems

OBS-ONE series - HORIBA, Ltd.

HORIBA developed the OBS-ONE series on-board emission measurement system in response to new requirements for exhaust emissions measurement from vehicles being driven on public roads (Portable Emissions Measurement Systems - PEMS). This development has been made possible by reducing the dimensions and power consumption of laboratory grade analyzers and ensuring that the system components have excellent vibration resistance. The OBS-ONE series continuously measures not only the concentration of CO, CO2, THC and NOx, but also measures exhaust fl ow rate and A/F ratio to calculate mass emission and fuel economy.