The emission bench was developed in cooperation between D2T and Environnement SA - the European leader in industrial emission analysis and 3rd supplier worldwide of ambient air analysers -.

It is designed for emission tests in the automotive field. Major fields of application are:

• Raw exhaust gases
• EGR
• Pre- and post-catalyst analysis

The analysers are produced by Environnement SA. They use the measurement principles prescribed in emission standards 88/77/CEE and 70/770/CEE :

• NDIR for CO and CO2
• PMD for O2
• HFID for HCT and CH4
• HCLD for NO and NOX

All analysers are connected to the bench control PC via Ethernet TCP/IP.

The engine exhaust gases are sampled and filtered by a trolley located next to the engine. They are pushed from the trolley to the emission bench where they are analysed either directly or after having passed a cooler, depending on the measurement principle.

The user interface allows to control the bench as a whole or each analyser individually.

The bench can be controlled by an automation system like Morphée via a Ethernet link or a serial link RS232 by means of the AK protocol.