Interacoustics AC40 - Selecting CIR22;CIR33 Insert Masking Transducer

AC40 Service Manual Page 54
Selecting CIR22/CIR33 Insert masking transducer
Select “Transducer Setup” (Figure 26)
Select “Insert masking transducer” and select CIR22/CIR33
Figure 26
Calibration of CIR22/CIR33
Equipment needed for calibrating the CIR22/CIR33:
Measuring amplifier
Acoustical IEC 60318-5 (IEC126) coupler, fitted with Eartip 10
Frequency counter
Correction values for coupler