Welch Allyn TM 262 - RS-232 Interface

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Revised 4/11/08 5-1

RS-232 Interface

Chapter 5

RS-232 Interface

Main Page

Service and Repair4
- Table of Contents5
Introduction9
- Tympanometry and Gradient13
- Gradient14
- Screening Acoustic Reflex15
- Manual Audiometry16
Recycling / Disposal17
Glossary of Terms18
Installation19
Unpacking and Inspection21
Probe Indicators22
Front Panel Controls and Indicators23
Printer and Display25
Rear and Bottom Panel Labels and Connectors27
Initial Set-Up28
- Loading the Paper28
- Paper Storage29
Pretest Tymp Checks30
- Calibration30
- Altitude Adjustment31
Pre-Test Audiometric Checks (Models with Audiometer Only)33
- Noise Recovery Period33
- Elimination of Ambient Noise33
Biological Check34
Operation35
Preventive Maintenance37
- Cleaning the System37
Eartip Care37
Probe Care38
- Probe Nose Cone Cleaning38
Earphone Care (Models with Audiometry Only)41
Paper Supply41
Tympanometry Testing Information42
- Helpful Hints42
- Obtaining a Seal42
Audiometry Testing Information44
- Instructing the Patient/Subject44
- Placement of Earphones44
- Response Handswitch (Optional Accessory)44
Program Mode45
- Reflex Format45
- Print Header Format46
- Audiometric Format During Printing47
- Normal Box Format48
- Audiogram Range48
- Exiting the Program Mode48
Tympanometry/Reflex Test Sequence49
- Tympanometry Only Mode49
- Tympanometry and Ipsilateral Reflex50
- Programming Ipsilateral Acoustic Reflex Test Frequencies52
- Exit Tympanometry/Reflex52
Audiometry Test Sequence (Models with Audiometer Only)53
- Screening Audiometry55
- Threshold Audiometry55
- Exit Audiometry56
Tests in Memory57
- Memory Erase57
- Printing Test Results58
Test Results59
Ear Canal Volume61
- Normal61
- Abnormal61
Compliance Peak61
Pressure Peak62
- Normal62
- Abnormal62
Gradient62
Acoustic Reflex63
- Normal63
Audiometry63
Special Messages and Error Codes64
Sample Test Results64
RS-232 Interface67
Introduction69
Operation69
Record Formats70
- General Record Format70
- Tympanometry and Reflex Test Results Record71
- Audiometry Test Results Record75
- Notes75
Data Transmission Protocol77
Data Transfer Program Mode78
RS-232 Interface79
- Interface Configuration79
- Cable Connections79
- Communications Flow Control79
Bibliography81
Specifications83
- Tympanometry/Reflex Modes85
- Pneumatic System85
- Acoustic Reflex Stimuli86
- Probe LED Indicators86
- Audiometry Mode87
- Power87
- Environmental87
- Mechanical87
- Intensity Levels88
- Tone Format88
- Transducers88
- Printer88
- Supplied Accessories89
- Optional Accessories89
- Catalog Listing90

Welch Allyn TM 262 - RS-232 Interface

Table of Contents

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