Interacoustics AT235, Instructions For Use Manual

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D-0128073-C – 2022/05
AT235 - Instructions for Use - US Page 9
2.5 Connections
1 Probe Dedicated probe connection
2 LAN LAN (Not used)
3 USB B For printer, mouse, keyboard, Memory stick
4 USB A For PC connection
5 HDMI For external monitor or projector
6
In 24 V
Use only specified power supply unit UES65-240250SPA3 type
7 Trigger in / out Cochlear implant trigger option
8 Pat. Resp. Patient response button
9 Right Audiometry Right output
10 Left Audiometry Left output
11 Contra Contra transducer output
2.6 Calibration cavities
You can use the 0.2 ml, 0.5 ml, 2.0ml and 5 ml for validity check of the probe calibration.
To perform a calibration check, select a protocol the measures a tympanogram.
Do not use an ear tip! Place the probe tip completely into the cavity. Perform the measurement. Check the
volume that was measured.
The allowed tolerance in the volume measurement is ±0.1 ml for cavities up to 2 ml and ±5% for larger
cavities. These tolerances are applicable for all probe tone frequencies.
We strongly recommend calibrating probe and contra phone at least once a year.