Planmeca ProMax Technical Manual page 170

Chapter E - C-ARM AND IMAGING ARM
First write down the current values of DEC settings (i25.1). You have to restore these values
after the DEC calibration. Then set the values to 100 as shown below.
Figure 92
Touch the i field on the Main display. The list of Information displays appears.
Figure 93
From the list of Information displays select Technical calibrations (i600).
E-72 Planmeca ProMax
OTHER ADJUSTMENTS AND CALIBRATIONS
Technical Manual