Interacoustics AC40 - Selecting EAR5 A Insert Phone

AC40 Service Manual Page 50
Selecting EAR5A Insert phone
Select “Transducer Setup” (Figure 22)
Select “Insert phone” and select EAR5A
Enter the serial numbers for the left and right phones in the field “Left” and “Right”
Figure 22
Calibration of EAR5A
Equipment needed for calibrating the EAR5A:
Measuring amplifier
Acoustical IEC 60318-5 (IEC126) coupler 
Frequency counter
Correction values for coupler
30° adaptor cable