Interacoustics AC40 - Selecting DD45 Headset

AC40 Service Manual Page 36
Selecting DD45 headset
Select “Transducer Setup” (Figure 6)
Select “Headset phone” to select DD45 headset
Enter the serial numbers for the left and right phones in the field “Left” and “Right”
Figure 6
Calibration of DD45
Equipment needed for DD45 calibration:
Measuring amplifier
Acoustical IEC 60318-3 (IEC 303) coupler
Frequency counter
Correction values for coupler