Welch Allyn AM282 Directions For Use Manual
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Welch Allyn AM282 Directions For Use Manual

Audiometer
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Welch Allyn AM282
Audiometer
Directions for use
Part Number 28204 Rev. D

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Summary of Contents for Welch Allyn AM282

  • Page 1 Welch Allyn AM282 Audiometer Directions for use Part Number 28204 Rev. D...
  • Page 2 Welch Allyn AM282 Audiometer ©2011 Welch Allyn. All rights are reserved. To support the intended use of the product described in this publication, the purchaser of the product is permitted to copy this publication, for internal distribution only, from the media provided by Welch Allyn. No other use, reproduction, or distribution of this publication, or any part of it, is permitted without written permission from Welch Allyn.

  • Page 3: Table Of Contents

    Directions for use Introduction........... . . 1 Unpacking and inspection.
  • Page 4 Welch Allyn AM 282 Audiometer...

  • Page 5: Introduction

    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 possible) and return it prepaid to Welch Allyn for necessary adjustments.

  • Page 6: Recycling / Disposal

    Follow all of your respective local laws and regulations for the proper disposal of batteries and any other parts of your system. Safety Summary Before using the AM282 Audiometer, familiarize yourself with the sections of this directions for use that pertain to your use of the AM282 Audiometer. •...

  • Page 7: Safety Notes

    Introduction Safety Notes WARNING The AM282 is designed for compliance to IEC and UL 60601-1 when used in the patient vicinity. To achieve this compliance, use of hospital grade plug and receptacles are required. For patient and operator safety, the AM282 must be used with properly grounded plug and receptacles at all times.

  • Page 8: Warranty

    IEC and UL 60601-1. Warranty We, Welch Allyn, warrant that this product is free from defects in material and workmanship, and when properly installed and used, will perform in accordance with applicable specifications.

  • Page 9: Installation

    Left earphone output jacks (standard phone jack). Insert either external headset or Internal Earphone plugs. Power Input jack (2.1 mm pin). Power switch. Symbols on the AM282 Audiometer Symbol Description Attention, consult accompanying documents. Date of manufacture CE Marked in accordance with the European Council Directive 93/42/EEC concerning medical devices.
  • Page 10 WARNING Do not turn on/off system power while a patient is wearing the headsets 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.

  • Page 11: Controls And Indicators

    F12 Hearing Level knob for setting the stimulus intensity level. Level is indicated on the center top of the display. Note symbol is located on the rear panel of the AM282 Audiometer and denotes a Type B applied part.

  • Page 12: Lcd Display

    Introduction Welch Allyn AM282 Audiometer LCD display Legend Icons/LEDs Description AC PWR Indicates power is on. SW VERSION Indicates the current software version. When displayed, the stimulus is being presented. When displayed, an additional 10dB is available at the test frequency.

  • Page 13: Sleep Mode

    3. Remove the power supply from the rear panel. Battery operation The AM282 Audiometer requires 5 x 1.5V AA alkaline batteries. It can also use 5 x 1.2V AA NiMH or NiCad batteries if rechargeable batteries are desired. The AM282 Audiometer does not have a built-in charger, rechargeable batteries should be purchased with the recommended charger for those batteries.
  • Page 14 The AM282 Audiometer requires 5 x 1.5V AA alkaline batteries. It can also use 5 x 1.2V AA NiMH or NiCad batteries if rechargeable batteries are desired.

  • Page 15: Inserting New Batteries

    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 compartment door is flush with the bottom of the AM282 Audiometer.
  • Page 16 Introduction Welch Allyn AM282 Audiometer...

  • Page 17: Operation

    Operation Preliminary check Throughout this chapter are references to front panel (F) and rear panel (R) connectors, controls and indicators. Please refer to“Rear panel connectors” on page 5, “Controls and indicators” on page 7 and “LCD display” on page 8 of this manual for specific descriptions and locations.

  • Page 18: Test Environment

    An acoustically tested room may be required if room noise at the subject’s ears reaches objectionable levels. Audiocups are available from Welch Allyn as an optional accessory for use with the external headset headphones. Insert earphones are another option in noisy test environments. They provide greater than 30 dB reduction of external noises.
  • Page 19 3DUW 1R   5HY % 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 will apply the calibration values for the insert earphones. To make the selection for the headset, press the button and the headset icon will flash on the LCD.
  • Page 20 Operation Welch Allyn AM282 Audiometer To confirm the selection push the button again. To make the selection for insert earphones, press the button and the insert earphone icon will flash on the LCD. To confirm the selection push the button again.
  • Page 21 Directions for Use Operation 2. Select the L or R pushbutton to route the test tone to the selected ear. 3. Demonstrate the 1000 Hz tone at a 50 dB level. The tone duration should be between 1 and 2 seconds. 4.
  • Page 22 Operation Welch Allyn AM282 Audiometer...

  • Page 23: Routine Maintenance

    The length of time that an audiometer should be operated before re-calibration varies depending upon the use and treatment of the instrument and its headset. It is recommended that the instrument be fully calibrated by a certified Welch Allyn technician annually.
  • Page 24 3. File these audiogram forms where they will be readily available for comparison with future results. If the AM282 Audiometer is to be used to monitor employee thresholds as part of an industrial Hearing Conservation Program, this “biological listening check” must be done at the beginning of each day the audiometer is to be used (per CFR 1910.95 Occupational...
  • Page 25 Routine Maintenance Special messages The AM282 Audiometer performs a self-check each time the instrument is turned on (the self-check does not occur when instrument operation resumes from the “sleep mode”). Certain messages will be displayed on the front panel LCD if any error in the instrument operation is detected.
  • Page 26 Routine Maintenance Welch Allyn AM282 Audiometer...

  • Page 27: Standards, Specifications, And Accessories

    Standards, Specifications, and Accessories Standards and Compliance The AM282 meets ANSI S3.6 (2004) Specification for Audiometers (Type 4) IEC 60645-1 (2002) Electroacoustics - Audiological Equipment - Pure Tone Audiometers (Type 4) IEC 60601-1 (2003) Medical Electrical Equipment Part 1 - General Requirements for Safety...

  • Page 28: Tone Type

    Standards, Specifications, and Accessories Welch Allyn AM282 Audiometer Accuracy 125 to 4000 Hz, ±3 dB 6000 to 8000 Hz, ±5 dB Signal to Noise Ratio: >70 dB Tone Type Rise/Fall Time: 20-50 msec Continuous: Steady when present bar depressed Pulsed: 2.5 pulse/sec...

  • Page 29: Mechanical

    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...
  • Page 30 Standards, Specifications, and Accessories Welch Allyn AM282 Audiometer...
  • Page 31 Appendix A DD45 External Headset RETSPL Values for NBS 9A Coupler Frequency 1000 1500 2000 3000 4000 6000 8000 (Hz) 47.5 27.0 13.0 6.50 20.5 12.0 (dB) ANSI S3.6 and ISO 389.2 Reference Thresholds for ER3A/ER5A Internal Earphones with Rigid Tube Frequency 1000 1500...

  • Page 32: Bibliography

    Appendix A Welch Allyn AM282 Audiometer Bibliography ANSI S3.6 (2004) Specification for Audiometers (Type 4) Criteria for Permissible Ambient Noise During Audiometric Testing (ANSI S3.1 -1977) Methods for Manual Pure-Tone Threshold Audiometry (ANSI S3.21 - 1978) Michael, P .L., and Bienvenue, G.R., “Noise Attenuation Characteristics of Supra- Aural Audiometric Headsets Using the Models MX41/AR and 51 Earphone Cushions, ”...

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