Measurement Configuration; Un-Ece R83 Measurement And Test Cycle Definition - TESTO CU-2 User Manual

6.2.

Measurement Configuration

The 'Config Measurement' tab shown in Fig. 6.3 serves to set the measurement parameters. It
will be selected what should be calculated by the software out of the measured particle
concentration values, how data logging will be started and stopped, and where the logged data
should be saved.
Fig. 6.3: measurement configuration tab
6.2.1.

UN-ECE R83 Measurement and Test Cycle Definition

If the 'UN-ECE R83 measurement' button is activated, the measurements will follow a test cycle
consisting of up to 5 parts.
Each test of a cycle will be analyzed and particle number will be calculated in #/km according to
UN-ECE R83. The results are saved in the header of the saved file.
The desired test cycle is selected in the 'test cycle' menu. To change one of these predefined
cycles, it first must be selected, then the cycle name has to be entered in the text field right from
the 'test cycle' menu. The cycle part durations are entered in the fields below, and the newly
defined cycle is saved by clicking on the 'OK and save' button.
For the software to calculate the emissions in #/km, the 'cycle data information' window shown in
Fig. 6.4 appears after the data logging is completed. In this window, the amout of exhaust gas
volume and the virtually covered distance of the tested vehicle have to be entered for every cycle
part for the testo NanoMet software to calculate the emitted particle number per kilometer #/km.
The exhaust gas volume usually is the CVS total volume if the whole engine exhaust stream is
fed to and the particle sample was drawn from the CVS.
6 testo NanoMet Operation
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