Interacoustics AT235 Instructions For Use Manual page 50

Reflex Functions
Signal sources:
Outputs:
Test types:
Audiometer Functions
Signals:
Test types
D-0128073-C – 2022/05
AT23 5 - Instructions for Use - US
Tone - Contra, Ref lex:
Tone - Ipsi, Ref lex:
NB noise – Contra, Ref lex
NB noise – Ipsi, Ref lex
Stimulus duration:
Ref lex Acceptance
Intervals
Intensity max
Contra Earphone:
Ipsi Earphone:
Probe connection
Manual Ref lex
Automated Ref lex
Ref lex Decay
Ref lex latency
Frequencies Hz: Intensities dB HL:
125 -10 to 70
250 -10 to 90
500 -10 to 100
1000 -10 to 100
2000 -10 to 100
3000 -10 to 100
4000 -10 to 100
6000 -10 to 100
8000 -10 to 90
Auto Threshold Determination (Modif ied Hughson Westlake).
Auto testing: duration 1-2 s adjusted in 0.1 s intervals
250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz,
Wide Band, High and Low pass
500, 1000, 2000, 3000, 4000 Hz wide band, high and
low pass.
250, 500, 1000, 2000, 3000, 4000, 6000, 8000 Hz
1000, 2000, 3000, 4000 Hz
750 ms
Adjustable between 2% and 6%, or 0.05 – 0.15 ml
change of ear canal volume.
Down to 1 dB step size.
90, 100, 120 dBHL.
TDH39 earphone, DD45 earphone, IP30 single contra
insert and/or IP30insert f or Ref lex measurements.
Probe earphone incorporated in the probe system f or
Ref lex measurements.
Connection of the electrical and air system to the
probe.
Manual control of all f unctions.
Single intensities
Ref lex growth
Automatic, 10 dB above threshold and manually
controlled with stimulus durations of 10.
Automated, f irst 300 ms f rom stimulus start.
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