Italian to English Medical Medical: Dentistry

Hello all, I require some help in this interpretation. It concerns the testing of medical equipment used for radiological tests. It speaks about film density and machine parameters.
It appears in a list of observations, so no further context is available.
Please have knowledge in field.

Thanks

"Difficolta' nello sganciamento del TEST DENSITY function dall'algoritmo di variazione dei parametri in funzione della sensibilita' pellicola"