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The Welch Allyn AM 282 Manual Audiometer (#28200) includes Audiometry Headset, Threshold Audiometry Card, (50) Audiogram Forms, and Soft Storage Case.

Warranty: 1 Year.

The Welch Allyn AM 282 Manual Audiometer (#28200) is a complete precision tabletop audiometer that allows users to complete fast, accurate assessments. This lightweight system is ideal for screening audiometry in physician's offices.

Welch Allyn AM 282 Manual Audiometer Features

  • 11 frequencies: 125 Hz to 8000 Hz.
  • Compact, lightweight design.
  • Calibration storage for standard earphones and optional insert headphones.
  • Wide intensity range.
  • AC line power and battery.

Welch Allyn AM 282 Manual Audiometer Specifications

  • Dimensions: 12.6" x 8.8" x 3.2" (32 cm x 22.3 cm x 8.1 cm).
  • Weight: 2.6 lb (1.2 kg).
  • Frequency Range:
    • Discrete Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, 8000 Hz.
    • Accuracy: +/- 2%.
    • Total Harmonic Distortion: < 2.5% measures acoustically at the maximum Hz for frequencies below 5000 Hz and measured electrically above 5000 Hz.
  • Intensity (Ranges in increments of 5 dB steps): 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, +/- 3 dB; 6000 to 8000 Hz, +/- 5 dB.
    • Signal to Noise Ratio: > 70 dB.
    • Rise/Fall Time: 20 - 50 msec.
  • Tone Type:
    • Continuous: Steady when present bar depressed.
    • Pulsed: 2.5 pulse/sec.
    • FM: +/- 5%, 5 Hz, triangular modulation.
  • Power:
    • Line Voltage: Universal autoranging AC-DC adapter with an input voltage range of 90 - 264 V at 47 - 63 Hz.
    • Consumption: 1.5 watts.
    • Battery: 5 AA 1.5 V.
    • Capacity: Minimum of 10 hours of power for either battery type. Low battery icon will display when there is approximately one hour of power remaining.
  • Environmental Conditions:
    • Operating Temperature: 59°F to 104°F (15°C to 40°C).
    • Ambient Pressure: 98 kPa to 104 kPa.
    • Warm-Up Time: 10 minutes for instruments stored at room temperature.
    • Storage/Shipping: -30°F to 149°F (-34°C to 65°C).
    • Battery Storage: -4°F to 105°F (-20°C to 40°C).
    • Humidity: 15% to 95%.

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