Interacoustics AT235 - Probe tone speaker calibration

Service Manual
AT235
20
4.1.2 Probe tone speaker calibration
Select Probe Tone Speaker for calibration.
Connect the probe to a 2 cc coupler with corresponding preamplifier and RMS-meter.
Follow the on-screen instructions.
NOTICE
It is essential to click ‘Calculate Gain’
after each frequency level calibration.
Fig. 31