Welch Allyn Audioscope 3 Operating Instructions Manual
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Welch Allyn Audioscope 3 Operating Instructions Manual

Portable screening audiometer
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Operating
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Summary of Contents for Welch Allyn Audioscope 3

  • Page 1 Portable Screening Audiometer Operating Instructions...
  • Page 2 ® AudioScope — U.S. Patent No. 4,567,881 ® AudioSpec — Patent No. 4,380,998...

  • Page 3: Table Of Contents

    Wall Mounting Instructions .............. 19 Cleaning and Sterilization ..............20 Charging Transformer/Charging Stand ........20 AudioScope 3 ................20 AudioSpecs ................. 20 AudioScope 3 Parts and Accessories ........... 21 Transformers (Charging) ............22 Service, Recalibration and Warranty ..........23 Service ..................23 Recalibration................23 Warranty ..................

  • Page 4: Warnings

    Not for use in the presence of flammable anesthetics. For Service in North America, instrument should be returned to an authorized Welch Allyn distributor or to Technical Service Department, Welch Allyn, Inc., 4341 State Street Road, Skaneateles Falls, NY 13153-0220 U.S.A.

  • Page 5: Standards Compliance

    Page 3 Standards Compliance The Model 23300 AudioScope 3 complies with the following standards to the extent that they apply to this instrument: Type BF equipment ANSI S3.6-1969 (R1973): Standard for Audiometers IEC 645-1979: Standard for Audiometers ETL listed: UL2601, CSA C22.2, No 601-1, IEC 601-1...

  • Page 6: Audioscope 3 - Introduction

    Page 4 AudioScope 3 – Introduction Thank you for purchasing the AudioScope 3. The operating and maintenance instructions found in this manual should be followed to ensure many years of accurate and reliable service. Please read these instructions thoroughly before using your new AudioScope 3.

  • Page 7: Traditional Hearing Testing

    Page 5 TRADITIONAL HEARING TESTING Tuning forks were one of the first methods used to determine the type of hearing loss. They may still be used by some to differenti- ate between conductive and sensorineural losses. However, they have in great part been replaced by the audiometer. Traditional audiometers produce pure tones of varying frequency and intensity.
  • Page 8 Page 6 TABLE 1 Audiogram Showing Scale of Hearing Impairment* Frequency in Hz NORMAL MILD Hearing Level (HL) in dB MODERATE ANSI 1969 MODERATELY SEVERE SEVERE PROFOUND *Katz, J. “Handbook of Clinical Audiology,” Williams & Wilkins, 1985.

  • Page 9: Screening Audiometry

    ENT areas; nursing homes; high schools and col-leges; industrial areas; public health clinics; and health mainte-nance organizations. The Welch Allyn AudioScope 3 provides a unique means for accu- rate and efficient early detection of hearing loss. AudioScope 3 provides screening at the speech frequencies of 1000, 2000, 4000 and 500 Hz respectively, at a fixed decibel level.

  • Page 10: Completing A Test

    NOTE: Use only gray-tipped Welch Allyn AudioSpecs. Other types of specula will cause inaccurate results. 4. Turn AudioScope 3 “ON” by sliding the selection switch to the desired screening level (20 dB HL, 25 dB HL, or 40 dB HL; see p.
  • Page 11 Page 9 5. Instruct the patient that he/she will hear a loud tone (or beep) and then some fainter tones (or beeps). The patient is to respond every time a tone is heard. Responses can be verbal (“yes” or “beep”), gross motor (raising a hand, dropping a block in a bucket, waving a paper towel), or fine motor (raising a finger).
  • Page 12 Gently pull it slightly up and back. With children, the pinna should be pulled back more than up. This facilitates insertion of the tip. 7. Grasp AudioScope 3 and gently insert speculum tip into the ear canal. NOTE: The handle may also be held in a horizontal position.
  • Page 13 Excessive wax may reduce the hearing sensitivity of a patient. 9. Maintain AudioScope 3 in the same position and depress the “START” button. The green light will then go out, and tone indicators which show the tone being presented will light sequentially.

  • Page 14: Guidelines For Selection Of Screening Level

    40 dB HL as the level of choice for this age group. AudioScope 3 gives you the flexibility of screening at 25 dB HL, 40 dB HL or both. 2. Katz, J. “Handbook of Clinical Audiology,” Williams & Wilkins, 1985 3.

  • Page 15: General Protocol

    IMPORTANT: A diagnosis or prescription for a hearing aid or drugs should not be made solely on the basis of AudioScope 3 results. This instrument is a screening device designed to identify people at risk for hearing loss and is to be used by the...

  • Page 16: Lamp And Battery Replacement

    If the lamp or battery is to be replaced, it is necessary to first remove the instrument cover: 1. Disconnect the charging transformer from AudioScope 3 and turn the instrument “OFF” before beginning. 2. Insert a coin into the slot of the lock mechanism at the end of the handle.

  • Page 17: Lamp Replacement

    (see Figure 1 above). 3. Push lamp into lamp holder. 4. Follow instructions for cover replacement (page 16). NOTE: Replace with Welch Allyn No. 06200 lamp only. Other lamps may cause damage to the instrument or may cause inaccurate readings.

  • Page 18: Battery Replacement

    Page 16 BATTERY REPLACEMENT Turn AudioScope 3 “OFF”. Remove the cover and lift out the bat- tery. Observe polarity markings when installing new battery. NOTE: Replace with Welch Allyn No. 72300 only. COVER REPLACEMENT The cover may be replaced in the opposite manner in which it was removed: 1.

  • Page 19: Recharging

    (No. 71040 Charging Transformer shown; see p. 22 for others.) 4. Place AudioScope 3 in charging stand. Handle will fit into well only one way. 5. By leaving AudioScope 3 in the charging stand, a fully charged instrument is always ready for use.

  • Page 20: Method 2: Using Charging Transformer

    METHOD 3: USING MICROTYMP PRINTER/CHARGER The Printer/Charger for the Welch Allyn MicroTymp (Models 71130, 71135, 71170, 71175) may also be used to charge AudioScope 3. Follow instructions above for charging stand. NOTE: The bottom portion of AudioScope 3 handle will become...

  • Page 21: Wall Mounting Instructions

    Page 19 Wall Mounting Instructions 1. Choose a location for the charging stand that is within five feet (1.5m) of an electrical outlet. 2. Position mounting bracket vertically on wall and use as a template to pencil markings for drill holes. 3.

  • Page 22: Cleaning And Sterilization

    The lens assembly may be cleaned separately by sliding it out of the housing. NOTE: Do not attempt to clean or perform procedures through the AudioScope 3 cavity. This may result in inaccurate read- ings or damage to AudioScope 3 sound delivery system. AUDIOSPECS Will withstand cleaning or sterilization by any one of the following: Ethylene Oxide (130°F, 8 PSI, 4 hr.

  • Page 23: Audioscope 3 Parts And Accessories

    Page 21 AudioScope 3 Parts and Accessories The following replacement parts are available from your Welch Allyn Distributor: AudioSpecs No. 23303 Small No. 23305 Medium No. 23307 Large No. 23400 Complete Set (one each of small, medium and large) Battery No.

  • Page 24: Transformers (Charging)

    Page 22 TRANSFORMERS (CHARGING) Any of the following Welch Allyn charging transformers may be used with this instrument: No. 71040 110-130v Input UL Recognized. CSA Certified No. 71032 220-240v Input Compliant with IEC 601-1 No. 71034 230-250v Input Compliant with IEC 601-1 No.

  • Page 25: Service, Recalibration And Warranty

    Canada only) or 905-890-0004 Fax: 315-685-4653 Fax: 905-890-0008 For customers outside of North America, return your instru- ment to a local, authorized Welch Allyn distributor or to your nearest Welch Allyn service center. RECALIBRATION The U.S. Occupational Safety and Health Administration (OSHA) recommends that audiometers be recalibrated annually.

  • Page 26: Warranty

    Extend the AudioScope 3 warranty from one to three years. This warranty can be extended to three years provided the AudioScope 3 is returned to a Welch Allyn service location for recalibration annually. A moderate fee for recalibration will be charged.

  • Page 27: Technical Specifications

    Page 25 Technical Specifications AUDIOSCOPE 3 Size/Weight 8.5 in. (21.6 cm) 1.45 in. 1.42 in. (3.68 cm) (3.61 cm) Weight 9 oz. (248 g)
  • Page 28 For 25 dB HL For 40 dB HL 29.9 34.9 49.9 1000 27.3 32.3 47.3 2000 32.7 37.7 52.7 4000 33.9 38.9 53.9 5. Bienvenue, G., Michael, P., Chaffinch, J. — “Reference Threshold Sound Pressure Levels for the Welch Allyn Audioscope”, Acoustical Society of America, 1984...

  • Page 29: Charging Stand Specifications

    Model: 71123 Input: Models 71032, 71034, 71036 and 71040 Charging Transformers Output: Model 23300 AudioScope 3™ charging rate — 75 mA Leakage Current: See instructions for 71032, 71034, 71036 and 71040 Charging Transformers. Weight: 1 lb. 3 oz. (539 g).

  • Page 30: Charging Transformers

    Page 28 CHARGING TRANSFORMERS Model No. 71040 4 oz. 2.2" 2.1" 1.7" 71032 190 gm 70 mm 40 mm 40 mm 71034 190 gm 70 mm 40 mm 40 mm 71036 175 gm 63 mm 43 mm 43 mm CIRCUIT DIAGRAM FOR CHARGING TRANSFORMERS Refer to page 22 for Voltage, Hz, Input and Output for all models.
  • Page 31 Page 29...
  • Page 32 Page 30 Welch Allyn, Inc. 4341 State Street Road Skaneateles Falls, NY 13153-0220 (315) 685-4560 or (800) 535-6663 (in U.S.A. only) Fax (315) 685-3361 Part No. 727650 REV A Printed in the U.S.A. Date of Revision - 2017-10...

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