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Contents
Section 1—Introduction
1.1
Instrument Description .................................................. 1
1.2
Tympanometry and Gradient ........................................ 1
1.2.1
Tympanometry .......................................................... 1
1.2.2
Gradient .................................................................... 2
1.3
Screening Acoustic Reflex ............................................ 3
1.4
Manual Audiometry ....................................................... 4
Section 2—Installation
2.1
Unpacking and Inspection ............................................ 5
2.2
Probe Indicators ........................................................... 5
2.3
Front Panel Controls and Indicators ............................. 6
2.4
Printer and Display ........................................................ 8
2.4.1
Liquid Crystal Display (LCD) ...................................... 8
2.5
Rear and Bottom Panel Labels/Connectors ............... 10
2.6
Initial Setup ................................................................. 11
2.6.1
Loading the Paper ................................................... 12
2.6.2
Paper Storage ......................................................... 12
2.7
Pretest Tympanometry Checks .................................. 13
2.7.1
Calibration ............................................................... 13
2.7.2
Altitude Adjustment ................................................. 14
2.8
Pretest Audiometric Checks
(Models with Audiometer Only) ................................ 16
2.8.1
Noise Recovery Period ............................................ 16
2.8.2
Elimination of Ambient Noise ................................... 16
2.9
Biological Check ......................................................... 17
Section 3—Operation
3.1
Eartip Care .................................................................. 18
3.2
Probe Care ................................................................. 18
3.2.1
Probe Nose Cone Cleaning ..................................... 18
3.2.2
The O-Ring .............................................................. 19
3.2.3
The Probe Wire ....................................................... 20
3.2.4
Probe Reassembly .................................................. 20
3.3
Earphone Care
(Models with Audiometer Only) ................................ 20
3.4
Paper Supply .............................................................. 21
3.5
Tympanometry Testing Information ............................ 22
3.5.1
Helpful Hints ............................................................ 22
3.5.2
Obtaining a Seal ...................................................... 22
3.6
Audiometry Testing Information .................................. 24
3.6.1
Instructing the Subject ............................................ 24
3.6.2
Placement of Earphones ......................................... 25
3.6.3
Response Handswitch (Optional Accessory) ........... 25
3.7
Program Mode ............................................................ 25
3.7.1
Reflex Format .......................................................... 26
3.7.2
Print Header Format ................................................ 27
3.7.3
Audiometric Format During Printing ........................ 28
3.7.4
Normal Box Format ................................................. 29
3.7.5
Audiogram Range ................................................... 30
