Welch Allyn MicroTymp Printer/Charger Specifications

MicroTymp®3portable tympanometric instrumentDirections for use

10 Introduction Welch Allyn MicroTymp3 portable tympanometric instrumentSymbolsDocumentation symbolsWarning(Warnings indicate conditions or practices

Directions for use Introduction 11Certification symbolsMeets essential requirements of European Medical Device Directive 93/42/EEC74227Complies with a

12 Introduction Welch Allyn MicroTymp3 portable tympanometric instrumentGeneral warningsGeneral cautionsWARNING Explosion risk. Do not use MicroTymp

Directions for use Introduction 13General notesThe MicroTymp Printer/Charger (#7117x) will charge and print data from the MicroTymp2 or MicroTymp3 Han

14 Introduction Welch Allyn MicroTymp3 portable tympanometric instrument2. Remove the battery cover by lifting the bottom of the cover away from the p

Directions for use Introduction 15Charge the handle1. Before first use, place the Handle (with battery installed) into the Printer/Charger charging we

16 Introduction Welch Allyn MicroTymp3 portable tympanometric instrument

217Completing a testObtaining a tympanogramSelect a probe tip1. After examining the subject's ear canal opening, select a tip which is large enou

18 Completing a test Welch Allyn MicroTymp3 portable tympanometric instrument2. Press the button below the Liquid Crystal Display (LCD) to show the

Directions for use Completing a test 19Once a seal is achieved, the TEST message appears on the LCD, followed by the volume indication on the +200 Vea

ii Welch Allyn MicroTymp3 portable tympanometric instrument© 2009 Welch Allyn. All rights are reserved. No one is permitted to reproduce or duplicate,

20 Completing a test Welch Allyn MicroTymp3 portable tympanometric instrumentStore and display data1. To store the results of the test, press the butt

Directions for use Completing a test 213. Remove the Handle cover by lifting the bottom of the cover away from the probe tip.4. With a sharp, non-cond

22 Completing a test Welch Allyn MicroTymp3 portable tympanometric instrument

323Understanding the LCD messagesThe following messages may be displayed on the LCD during Handle operation.Company identificationThe Welch Allyn mess

24 Understanding the LCD messages Welch Allyn MicroTymp3 portable tympanometric instrumentOpenThe test has not begun since a valid ear cavity has not

Directions for use Understanding the LCD messages 25Block The test cannot continue since the measured admittance is less than 0.2 mmho. Possible cause

26 Understanding the LCD messages Welch Allyn MicroTymp3 portable tympanometric instrumentPossible solutions: • Reposition probe tip • Patient and pra

Directions for use Understanding the LCD messages 27Low batteryThe LOW BATT message indicates that the battery needs to be recharged. The system will

28 Understanding the LCD messages Welch Allyn MicroTymp3 portable tympanometric instrumentCalibration dueWelch Allyn recommends annual calibration of

Directions for use Understanding the LCD messages 29System checkThe SYS CHK (SYS CHK0, SYS CHK1) message indicates that the Handle is doing a self-che

iiiContents1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7About this document . . . . .

30 Understanding the LCD messages Welch Allyn MicroTymp3 portable tympanometric instrument

431Interpreting test resultsWhen measured properly, tympanometric results are accurate and objective but should be interpreted in the context of the p

32 Interpreting test results Welch Allyn MicroTymp3 portable tympanometric instrumentGradient (width) measurements (226 Hz only)When a tympanometric t

Directions for use Interpreting test results 33Interpreting 226-Hz tympanogram results Normal middle ear A tympanogram with normal Peak Ya, gradient (

34 Interpreting test results Welch Allyn MicroTymp3 portable tympanometric instrumentTympanogram with low Peak YaConditions which cause tympanograms w

Directions for use Interpreting test results 35Negative and positive peak pressure tympanograms (left or right shift)Tympanogram with negative middle

36 Interpreting test results Welch Allyn MicroTymp3 portable tympanometric instrumentFlat tympanogramsFlat tympanogram with normal ear canal volumeCon

Directions for use Interpreting test results 37Tympanograms with artifactConditions which cause artifact:• Patient movement• Practitioner movement• Vo

38 Interpreting test results Welch Allyn MicroTymp3 portable tympanometric instrumentNormative valuesThe table below presents normative values for 100

Directions for use Interpreting test results 39ReferCondition which causes a REFER message:• Peak Ya is less than 0.6 mmhoInfants with middle ear effu

iv Contents Welch Allyn MicroTymp3 portable tympanometric instrumentNormative values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40 Interpreting test results Welch Allyn MicroTymp3 portable tympanometric instrumentInfluence of altitudeAs the altitude above sea level increases, t

541Printing 226-Hz resultsPrint memory contentsFollow the steps listed below to print tympanometric data stored in the Handle: 1. Place the Handle in

42 Printing 226-Hz results Welch Allyn MicroTymp3 portable tympanometric instrumentPrintout formats A complete tympanometric printout is shown below.

Directions for use Printing 226-Hz results 43Data section The data section displays numeric values for the four key characteristics of the tympanogram

44 Printing 226-Hz results Welch Allyn MicroTymp3 portable tympanometric instrumentLow Peak Height, Large Ear Volume Tympanogram Is Wide Negative Tymp

Directions for use Printing 226-Hz results 45Change from manual to automatic printout Automatic vs. Manual Printout (Switch #1) Change printout format

46 Printing 226-Hz results Welch Allyn MicroTymp3 portable tympanometric instrumentPrint interpretive messages (Switch #2) Print tympanogram only or t

Directions for use Printing 226-Hz results 47Printer function messages If tympanometric results are not printed, a message will appear describing the

48 Printing 226-Hz results Welch Allyn MicroTymp3 portable tympanometric instrument

649Maintenance and troubleshootingMaintain the equipment About the battery The rechargeable Lithium-ion battery is intended for many charge/discharge

Directions for use Contents vC - Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Physical charac

50 Maintenance and troubleshooting Welch Allyn MicroTymp3 portable tympanometric instrument4. Push down on the positive (+) end of the battery. The ba

Directions for use Maintenance and troubleshooting 517. Tighten screw in clockwise direction. To avoid stripping the screw threads, do not tighten exc

52 Maintenance and troubleshooting Welch Allyn MicroTymp3 portable tympanometric instrumentRecycle the Battery Check with your local waste management

Directions for use Maintenance and troubleshooting 532. Depress the FEED button to advance any remaining paper through the printer. Do not pull paper

54 Maintenance and troubleshooting Welch Allyn MicroTymp3 portable tympanometric instrumentCleaningClean the handle Clean the Handle by wiping it with

Directions for use Maintenance and troubleshooting 55Functional ChecksCheck the handle A MicroTest Cavity is included with the Handle. The cavity prov

56 Maintenance and troubleshooting Welch Allyn MicroTymp3 portable tympanometric instrumentA properly functioning instrument will produce two results:

Directions for use Maintenance and troubleshooting 57Check the printer/chargerPressing the FEED and PRINT buttons simultaneously causes a test pattern

58 Maintenance and troubleshooting Welch Allyn MicroTymp3 portable tympanometric instrument1. Test Pattern - The test pattern is used to confirm that

A59Middle ear pathologiesLow-admittance pathologiesOtitis media with effusion (OME) Otitis media with effusion (OME) is an inflammation of the middle

vi Contents Welch Allyn MicroTymp3 portable tympanometric instrument

60 Middle ear pathologies Welch Allyn MicroTymp3 portable tympanometric instrumentvibration with greater ease than the normally stiff tympanic membran

B61Service and warranty informationService Repair Repair must be performed by Welch Allyn authorized personnel. Failure to do so invalidates the warra

62 Service and warranty information Welch Allyn MicroTymp3 portable tympanometric instrumentWarrantyInstrument Welch Allyn Inc. warrants the Handle an

C63 SpecificationsPhysical characteristics3.68 in9.35 cm7.32 in18.6 cm1.94 in4.94 cm9.62 in24.4 cm9.70 in24.6 cm4.82 in12.2 cmPOWERCHARGE FEED PRINTTE

64 Specifications Welch Allyn MicroTymp3 portable tympanometric instrument Technical specificationsProbe tone 226-Hz Amplitude: 85 ± 3 dB SPL 1000-Hz

Directions for use Specifications 65 Display resolution0.1 mmho for Ya0.2 cc for +200 VeaWeightHandle: 0.61 lb/0.28 kg Printer/Charger: 3.98 lb/1.81 k

66 Specifications Welch Allyn MicroTymp3 portable tympanometric instrument Printer paper4.42 in. (112 mm) wide with core Printer/ChargersOperating ran

Directions for use Specifications 67 Standards complianceThis instrument complies with the following standards based on the most recent revision avail

68 Specifications Welch Allyn MicroTymp3 portable tympanometric instrument Guidance and manufacturer’s declarationEmissions and immunity informationCa

Directions for use Specifications 69 Electromagnetic ImmunityThe MicroTymp3 is intended for use in the electromagnetic environment specified below. Th

17IntroductionAbout this documentThis document is written for clinical professionals who are qualified to perform tympanometry. The intended clinical

70 Specifications Welch Allyn MicroTymp3 portable tympanometric instrument Electromagnetic ImmunityThe MicroTymp3 is intended for use in the electroma

Directions for use Specifications 71 Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the MicroTymp3The Mi

72 Specifications Welch Allyn MicroTymp3 portable tympanometric instrument

D73Replacement parts and accessoriesNoteItems are not drawn to scale.BatteryScrew for Battery CoverScrew Driver for Battery CoverMicroTest CavityProbe

74 Replacement parts and accessories Welch Allyn MicroTymp3 portable tympanometric instrument1000-Hz Screening Results Cards - Quantity 100:four packs

75Glossaryacoustic admittance The ease with which acoustic energy is transferred into a system; the ratio of volume velocity to sound pressure.acoust

76 Glossary Welch Allyn MicroTymp3 portable tympanometric instrumentstatic admittance (Peak Ya) A calculated measure of the compensated static acoust

8 Introduction Welch Allyn MicroTymp3 portable tympanometric instrumentControls, indicators, and connectorsHandle componentsTEST-400 -200 0 20020.501.

Directions for use Introduction 9Printer/Charger componentsPower CordTip boxPOWER indicatorCHARGE indicatorFEED buttonPRINT buttonPaper slotPaper acce