Ko se merilnik vrne v stanje za preskušanje v načinu prikazovanja absorpcijskega koeficienta k, se koeficient absorpcije svetlobe nato pravilno izračuna na podlagi izmerjene motnosti in LA, ki jo navede proizvajalec merilnika motnosti,.
The light absorption coefficient is then correctly calculated based upon the measured opacity and the LA, as submitted by the opacimeter manufacturer, when the instrument is returned to the k readout mode for testing.