Welch Allyn TM286 AutoTymp Tympanometric System

Welch Allyn TM286 AutoTymp Tympanometric System
Key Features
  • SKU: WLA-28600
  • Condition: Factory New
  • Warranty: 1 Year
  • Weight: 13.35 lb
  • TM286 AutoTymp

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  • Purchasing Restriction: Medical license or prescription required
Contact The Manufacturer
  • MFR: Welch Allyn Ships from Manufacturer
  • MPN: 28600
  • Phone: (800) 535-6663
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Description

The Welch Allyn TM286 AutoTymp Tympanometric System (#28600) includes Audiometry Headset (External), Threshold Audiometry Card, Thermal Printer Paper (3 rolls), and Ear-Tip Set (#26100).

Warranty: 1 Year.

The Welch Allyn TM286 AutoTymp Tympanometric System is a flexible screener for tympanometry, audiometry, and acoustic reflex measurements. It is lightweight, portable, and designed to make detection and documentation of the middle ear pathologies fast and accurate.

Features

Welch Allyn TM286 AutoTymp Tympanometric System Features

  • Fast detection of middle ear pathologies.
  • Manual and automated audiometry.
  • Internal Printer.
  • 226 Hz tympanograms offer summary information.
  • Lightweight and portable.
  • Acoustic reflex measurements available in 500, 1000, 2000, 4000 Hz frequencies.

Specifications

Welch Allyn TM286 AutoTymp Tympanometric System Specifications

  • Tympanometry Mode:
    • Probe Tone: 226 Hz, +/- 2%.
    • Sound Pressure Level: 226 Hz: 85.5 sB SPL, +/- 2.0 dB, measured in a 2.0 cm3 coupler.
    • Harmonic Distortion: Less than 3%.
    • Admittance (Compliance) Range: 226 Hz: 0.0 to 1.5 cm3 or 0.0 to 3.03.
    • Pressure Range: +200 to -400 daPa.
    • Pressure Accuracy: +/-10 daPa/sec except near tympanogram peak where sweep rate slows to 200 daPa/sec to provide better definition of peak compliance.
    • Direction of Sweep: Positive to negative.
    • Tympanogram Test Time: Approximately 1 second.
  • Reflex Mode:
    • Frequencies: 500, 1000, 2000, and 4000 Hz for ipsilateral stimulation.
    • Accuracy: +/- 3 %.
    • Total Harmonic Distortion: Less than 5% for outputs less than 110 dB HL and less than 10% at 110 dB HL.
    • Rise/Fall Time: 5 to 10msec.
    • Output Levels: Ipsilateral: 500 and 4000 Hz: 80, 90, 100 dB HL; 1000 and 2000 Hz: 85, 95, 105 dB HL.
    • Pressure: Reflex measures are set automatically to pressure at peak compliance with an offset of -20 daPa if peak pressure is negative and +20 daPa if peak pressure is positive.
    • Reflex Determination: Compliance change of 0.05 cm3 or greater.
    • Reflex Test Time: 1 to 12 seconds depending upon the number of ipsilateral test frequencies selected (4 maximum) and intensity required.
  • Audiometry Mode
    • Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, 8000 Hz.
    • Accuracy: +/- 2%.
    • Total Harmonic Distortion: Less than 2.5% (125 to 3000 Hz measured acoustically at maximum dB HL; 4000 and 6000 Hz measured electrically).
    • Audiometric Headset: Pair External earphones Type 51 cushions (60 ohms impedance). Headband force per ANSI S3.6 and IEC 645 (4.5 N +/- 0.5).
    • External Headset Earphones: 125 Hz: -10 to 50 dB HL; 500 to 4000 Hz: -10 to 90 dB HL; 6000 Hz: -10 to 85 dB HL; 250 and 8000 Hz: -10 to 70 dB HL.
    • Accuracy: 125 to 4000 Hz +/- dB; 6000 and 8000 Hz +/- 5 dB.
    • Step Size: 5 dB.
    • Signal-to-Noise Ratio: Greater than 70 dB in 1/3 octave; less than -10 dB HL for levels less than 60 dB HL.
    • Rise/Fall Time: 20 to 50 msec.
    • Continuous: Tone is steady when present bar is depressed.
    • Pulsed: Tone is pulsed at 2.5/sec (i.e., 200 msec ON, 200 msec OFF).
    • FM (Frequency Modulated): Tone is frequency modulated at a rate of 5 Hz, +/- 5%.
  • Line Voltage: 100 to 240 VAC (+/- 10%).
  • Power Consumption: 16 watts maximum while printing. Low-voltage input for desktop power supplies 7 VDC, 5.0 A.
  • Dimensions: 12.5" [W] x 14.5" [D] x 4.7" [H] (31.8 cm x 36.8 cm x 11.9 cm).
  • Weight: 5 lb (2.3 kg).
  • Shipping Dimensions: 19.5" [W] x 22.5" [D] x 8.25" [H] (49.5 c, x 57.2 cm x 20.9 cm).
  • Shipping Weight: 13.1 lb (6 kg).

Frequently asked questions

Does this system perform comprehensive testing?

Yes, the Welch Allyn TM286 AutoTymp is designed for comprehensive middle ear assessment by integrating three key measurement types into a single, portable device:

  • Tympanometry: Measures middle ear function using a 226 Hz probe tone with rapid test times (approximately 1 second).
  • Audiometry: Includes both automated and manual audiometry capabilities across frequencies from 125 Hz up to 8000 Hz.
  • Acoustic Reflex Measurements: Measures ipsilateral acoustic reflexes at 500, 1000, 2000, and 4000 Hz.
Is the Welch Allyn TM286 AutoTymp system portable for on-site screenings?

Yes, the Welch Allyn TM286 AutoTymp system is lightweight (5 lb / 2.3 kg) and designed for portability, making it convenient for on-site screenings.

Does the audiometry testing cover a wide frequency range?

Yes, the TM286 AutoTymp covers a broad spectrum for audiometry testing, enabling comprehensive assessment. The system tests frequencies from 125 Hz up to 8000 Hz.

Key details regarding the frequency coverage and accuracy include:

  • Tested Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, and 8000 Hz.
  • Accuracy: The accuracy is specified as +/- 2% for frequencies between 125 Hz and 4000 Hz, and +/- 5 dB for 6000 Hz and 8000 Hz.
What components are included with the system?

The system package includes essential components needed for testing and documentation:

  • Audiometry Headset (External)
  • Threshold Audiometry Card
  • Thermal Printer Paper (3 rolls)
  • Ear-Tip Set (#26100)
What is the pressure range for tympanometry?

The Welch Allyn TM286 AutoTymp system uses a pressure range for tympanometry that spans from +200 to -400 daPa.

This precise measurement is achieved through:

  • Pressure Accuracy: +/-10 daPa/sec.
  • Sweep Control: The system automatically slows the sweep rate near the peak compliance point to ensure maximum accuracy.
  • Sweep Direction: Positive to negative.
  • Test Time: The entire tympanogram test is completed rapidly in approximately 1 second.
What specific voltage does the TM286 AutoTymp require?

The Welch Allyn TM286 AutoTymp is designed for flexible operation and accepts a wide voltage range:

  • Input Voltage: 100 to 240 VAC (+/- 10%)
  • Power Consumption: Maximum consumption is 16 watts while printing. It also uses a low-voltage input of 7 VDC, 5.0 A.
Is the tympanogram test rapid?

Yes, the Welch Allyn TM286 AutoTymp is designed for speed. The tympanogram testing is exceptionally rapid, taking approximately 1 second to complete the measurement. This contributes to fast and efficient screening in a clinical setting.

Is thermal paper required for the integrated printer?

Yes, the Welch Allyn TM286 AutoTymp system utilizes an integrated thermal printer for quick and convenient documentation of all test results (tympanograms, audiometry, and acoustic reflex measurements). This functionality allows for immediate hard-copy records to streamline your clinical workflow. The system package includes three rolls of thermal printer paper.

At what frequencies can acoustic reflex measurements be performed?

The TM286 AutoTymp can perform acoustic reflex measurements at frequencies of 500, 1000, 2000, and 4000 Hz for ipsilateral stimulation.

What are the dimensions and weight of the unit?

The unit is designed to be compact and lightweight, making it highly portable for various clinical settings.

Dimensions:

  • Width: 12.5 inches (31.8 cm)
  • Depth: 14.5 inches (36.8 cm)
  • Height: 4.7 inches (11.9 cm)

Weight: Approximately 5 lb (2.3 kg)