Transducer Types And Equipment Requirements For Calibration - Interacoustics AT235 Service Manual

Service Manual
AT235
4.2.1

Transducer types and equipment requirements for calibration

Conduct the same procedure exemplified in
transducers mentioned below.
TDH39
Equipment needed for TDH39 calibration
• Measuring amplifier
Acoustical IEC 60318-3 (IEC 303) coupler
•
Frequency counter
•
• Correction values for coupler
From the AUD menu, select Transducer Calibration.
Place the transducer on the 6cc IEC 60318-3 (IEC 303) coupler
(fig. 44)
EAR3A
Equipment needed for calibration of EAR3A
Measuring amplifier
•
• Acoustical IEC 60318-5 (IEC 126) coupler
Frequency counter
•
Correction values for coupler
•
• 30° adaptor cable
From the AUD menu, select Transducer Calibration.
Place the transducer on the 2cc IEC 60318-5 (IEC 126) coupler
(fig. 45)
Selecting a transducer / how-to-guide can be applied to all the
Fig. 44
Fig. 45
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