For Sale WELCH ALLYN TM286 Audiometer

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.

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.

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).

Item Name: Audiometer

Return Policy

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