PN Meter

The Opus DC PNC metrology module is thoughtfully packaged and practically designed for fast, in-situ exhaust measurement of idling vehicle exhaust during PTI on Diesel engines.

The device complies with German PTB and Dutch NMI specifications.

The analyzer is virtually maintenance free, and the metrology bench is easily returned for annual factory adjustment.


The exhaust gas number of non-volatile particles is determined with the help of the Opus metrology module based on Diffusion Charging (DC) technology. The measurement of the exhaust gas turbidity is carried out by means of an HG4-DMK opacimeter.

Vehicle communication takes place via a communication module developed by HGS.

The data of the opacimeter and the communication module to the base device is transmitted via a Bluetooth BLE connection or a wired RS-485 connection.

More from Opus

Want to find out more?

Looking for a specific Opus business?