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Welch Allyn AM282
Audiometer

Directions for use

Part Number 28204 Rev. D

+ 10dB

dB HL

Ref. ANSI S3.6 / ISO 389

dB HL

AC PWR

Содержание AM282

Страница 1: ...Welch Allyn AM282 Audiometer Directions for use Part Number 28204 Rev D 10dB R L dB HL Ref ANSI S3 6 ISO 389 Hz FM dB HL Hz R AC PWR ...

Страница 2: ...erica copyright laws and international treaty provisions applicable worldwide Under such laws the licensee is entitled to use the copy of the software incorporated with this instrument as intended in the operation of the product in which it is embedded The software may not be copied decompiled reverse engineered disassembled or otherwise reduced to human perceivable form This is not a sale of the ...

Страница 3: ...covery period 13 Test environment 14 Routine Maintenance 19 Preventive maintenance 19 Cleaning patient contact reusable devices 19 Routine calibration check 19 Standards Specifications and Accessories 23 Standards and Compliance 23 Frequency Range 23 Intensity 23 Tone Type 24 Head set 24 Power 24 Environmental 24 Mechanical 25 Electromagnetic Compatibility 25 Accessories 25 Appendix A A Bibliograp...

Страница 4: ...iv Welch Allyn AM 282 Audiometer ...

Страница 5: ...trument appears to have suffered mechanical damage notify the carrier immediately so that a proper claim can be made Be certain to save all packing materials so that the claim adjuster can inspect it as well As soon as the carrier has completed the inspection notify a Welch Allyn representative If the instrument must be returned repack it carefully in the original AM282 Audiometer container if pos...

Страница 6: ...1 Audiometry Single Patch Cord 2 Conductor 23222 Audiometry Audiocups WARNING To ensure patient safety and optimal product performance use only Welch Allyn recommended accessories and supplies Caution Many local laws and regulations require special procedures to recycle or dispose of electric equipment related waste including batteries printed circuit boards electronic components wiring and other ...

Страница 7: ...oper accessory connections WARNING Accessory equipment connected to the analog and digital interfaces must be certified to the respective IEC standards IEC950 for data processing or IEC 60601 1 for medical equipment Furthermore all configurations shall comply with the system standard IEC 60601 1 1 Everyone who connects additional equipment to the signal input or signal output port configures a med...

Страница 8: ...RESS OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR PURPOSE WARNING Do NOT use in the presence of flammable gaseous mixtures Users should consider the possibility of explosions or fire when using this device in close proximity to flammable anesthetic gases WARNING Periodically have a service technician perform electrical safety checks on...

Страница 9: ...d intended for service personnel only R2 Patient Hand Switch input jack standard phone jack R3 Right ear phone output jacks standard phone plug Insert either the External Headset or Internal Earphone jacks R4 Left earphone output jacks standard phone jack Insert either external headset or Internal Earphone plugs R5 Power Input jack 2 1 mm pin R6 Power switch Symbol Description Attention consult ac...

Страница 10: ...or internal earphones WARNING Use only the provided power supply The AM282 Audiometer provided power supply should only be connected to a power source meeting the following range 90 246VAC 47 63Hz In North America the power source should be a maximum of 120VAC Symbol Description B1 Serial number of system B2 Battery compartment See Replacing the batteries on page 10 for detailed instructions B1 B2...

Страница 11: ...when selected F7 Selects internal earphone calibration file for transducers When the button is pressed the display will flash Press the button again to engage the internal earphone transducers The symbol is shown on the right side of the display when selected F8 Control for setting the stimulus frequency Frequency is indicated in the bottom center of the display F9 Select to present the stimulus t...

Страница 12: ...uency indicator 8 L Stimulus is being presented to the left ear 9 Indicates the battery is low 10 The headset calibration file is applied to the stimulus and Headphones should be used Press this button twice to activate the calibration file 11 The insert phone calibration file is applied to the stimulus and Insert phones should be used as the transducer Press this button twice to activate the cali...

Страница 13: ...tteries are desired The AM282 Audiometer does not have a built in charger rechargeable batteries should be purchased with the recommended charger for those batteries Welch Allyn recommends the purchase of extra rechargeable batteries to ensure a fully charged supple of batteries will be available The system was designed to operate for 10 hours on rechargeable batteries Alkaline batteries may last ...

Страница 14: ...door upward 2 Reach into the compartment through the empty battery slot and gently force the battery up until it is free from the silver battery contacts 3 Repeat for all 5 batteries Do not simultaneously touch both sides of the battery contacts at any time WARNING Do not touch the patient and the battery terminals at the same time The battery cover is to be closed at all times except when replaci...

Страница 15: ...t farthest from the slot that is not used Be sure to match the side of the battery with the marked side for each battery slot 2 Place the side of the battery in at an angle and then push down on the side of the battery until the battery fits securely 3 Replace the battery compartment cover by inserting the square pegs into the slots and gently pushing down until the tab snaps into place and the co...

Страница 16: ...12 Introduction Welch Allyn AM282 Audiometer ...

Страница 17: ... time after exposure If a subject is tested too soon after noise exposure a hearing test may indicate a hearing loss that does not reflect the subjects true hearing It is recommended that the testing procedure prescribe some time interval usually at least 16 hours between the last exposure to high level sound and the administration of any hearing test Caution Always handle earphones with care Neit...

Страница 18: ...and hearing conservation refer to the Bibliography Ears covered with earphone mounted in MX 41 AR cushion Providing patient instructions Put the subject as much at ease as possible before the test begins In addition help the subject understand how the test is to be conducted and what the subject will hear Uniform and unvarying instructions should be given to each subject in order to achieve consis...

Страница 19: ...lly plotting test data Space for entering comments about the subject or the test Routine test administration Transducer selection The AM282 Audiometer provides options for either headset or insert transducers Selecting the will apply the calibration values for the headset Selecting the will apply the calibration values for the insert earphones To make the selection for the headset press the button...

Страница 20: ... access the highest available intensities It prevents accidental presentation of the highest intensities to normal subjects To enable the range extension feature press the button labeled 10 dB while the intensity is at the maximum for that frequency Note that a sign appears on the LCD To disable the feature either press the button a second time reduce the intensity with the HL control knob to 20 d...

Страница 21: ...idered to be the lowest intensity at which a response has occurred two out of three times Record this setting on the audiogram form using the appropriate symbol for L X or R O Testing procedure 1 A suggested order in which to present frequencies is as follows 1000 Hz 500 250 repeat 1000 2000 3000 4000 8000 Hz An alternative order is as follows 250 Hz 500 1000 1000 again 2000 3000 4000 8000 Hz 2 Th...

Страница 22: ...18 Operation Welch Allyn AM282 Audiometer ...

Страница 23: ...h use The earphone cushions and patient hand switch can be wiped with a slightly damp cloth containing soap and water isopropyl alcohol ammonia based cleaners or bleach based cleaners Gently wipe the earphone cushions with the slightly damp cloth Prevent moisture from entering the speaker portion of the earphones Routine calibration check The length of time that an audiometer should be operated be...

Страница 24: ...l to 1000 or 2000 Hz 2 Set the HL knob at a comfortable audible level and use a Steady Tone type 3 Press the Present bar and flex earphone cord next to plug at both ends listening for intermittent signal abrupt changes in signal level or a scratchy sound superimposed over the signal that coincides with the flexing of the cord The presence of any of these three conditions signifies that the cord sh...

Страница 25: ... or the ear will restore normal instrument function As in the case with any instrument malfunction a certified service technician should be contacted immediately Remember to make note of the combination of selected ear and frequency that cause the CAL message Exx When an error code consisting of an E and a two digit number xx number appears on the audiometer s display a system error has been detec...

Страница 26: ...22 Routine Maintenance Welch Allyn AM282 Audiometer ...

Страница 27: ...al Equipment Part 1 General Requirements for Safety IEC EN 60601 1 2 2001 Medical Electrical Equipment Part 1 Electromagnetic compatibility requirements Discrete Frequencies 125 250 500 750 1000 1500 2000 3000 4000 6000 8000 Hz Accuracy 2 Total Harmonic Distortion 2 5 measured acoustically at the maximum Hz for frequencies below 5000 Hz and measured electrically above 5000 Hz Ranges In increments ...

Страница 28: ...adapter is a universal auto ranging with an input voltage range of 90 264V at 47 63 Hz Consumption 1 5 Watts Battery Types 5 each Alkaline AA 1 5V 5 each Rechargeable Nicad or NIMH AA 1 2V Note The instrument does not provide a recharging circuit for these batteries Capacity Minimum of 10 hours of power for either battery type A Low Battery icon will display when there is approximately 1 hour of p...

Страница 29: ...16 Kg with 5 AA batteries Welch Allyn Part Number Welch Allyn Description 28200 AM282 Manual Audiometer with Case 28201 AM282 Power Supply 28202 AM282 Carry Case 28203 DD45 Audiometry Headset External 28204 AM282 Directions for Use Manual printed English only 28205 AM282 Directions for Use Manual printed French only 28206 Threshold Audiometry Card 28207 AM282 Power Plug 28208 AM282 Audiogram Forms...

Страница 30: ...26 Standards Specifications and Accessories Welch Allyn AM282 Audiometer ...

Страница 31: ...erence Thresholds for ER3A ER5A Internal Earphones with Rigid Tube Frequency Hz 125 250 500 750 1000 1500 2000 3000 4000 6000 8000 R L dB 47 5 27 0 13 0 6 50 6 0 8 0 8 0 8 0 9 0 20 5 12 0 Frequency Hz 125 250 500 750 1000 1500 2000 3000 4000 6000 8000 R L dB 26 14 0 5 5 2 0 0 2 0 3 0 3 5 5 5 2 0 0 ...

Страница 32: ... Noise Attenuation Characteristics of Supra Aural Audiometric Headsets Using the Models MX41 AR and 51 Earphone Cushions J Accoust Soc Am 70 5 Nov 1981 1235 1238 Newby H A Audiology 4th ed New Jersey Prentice Hall Inc 1979 U S Department of Labor Occupational Noise Exposure CFR 1910 95 March 8 1983 American Speech and Hearing Association 1975 Guidelines for identification audiometry Rockville MD I...

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