Interacoustics AC40 - Selecting EAR3 A Insert Phone

AC40 Service Manual Page 47
Selecting EAR3A Insert phone
Select “Transducer Setup” (Figure 18)
Select “Insert phone” and select EAR3A
Enter the serial numbers for the left and right phones in the field “Left” and “Right”
Figure 18
Calibration of EAR3A
Equipment needed for calibration of EAR3A:
Measuring amplifier
Acoustical IEC 60318-5 (IEC126) coupler 
Frequency counter
Correction values for coupler
30° adaptor cable