Welch Allyn AM 282 Manual Audiometer
Welch Allyn AM 282 Manual Audiometer
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Details
Welch Allyn's AM 282 Manual Audiometer offers cost-effective audiometric testing capabilities.
Features
- Ideal for physician's office for screening audiometry
- Wide intensity range
- 11 frequencies: 125 Hz to 8000 Hz
- Compact, lightweight design
- Calibration storage for standard earphones
- Optional insert phones
- AC line power and battery
Dimensions
- 12.59" W × 8.76" D × 3.18" H (32 cm W × 22.3 cm D × 8.1 cm H)
- Weight: 2.55 lbs (1.16 kg) with AA batteries
Frequency Range
- Discrete Frequencies: 125,250, 500,750,1000, 1500, 2000, 3000, 4000, 6000, 8000 Hz
- Accuracy: ± 2%
- Total Harmonic Distortion: <2.5% measured 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 6000 Hz: -10 to 90 dB HL; 250 and 8000 Hz: -10 to 70 dB HL
- Signal to Noise Ratio: >70dB
- 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
Headset
- Telephonics External Headset Earphones with Type 51 cushions (60 ohm impedance)
- Headband: Exerts a force between 4 and 5 N when the earphones are separated by 145 mm
Power
- Line Voltage: The AC/DC adapter is universal autoranging with an input voltage range of 90 - 264 V at 47 - Hz
- Consumption: 1.5 watts
- Battery: Types: 5 each alkaline AA 1.5 V, 5 each rechargable nicad or NIMH AA 1.2V
- Capacity: Minimum of 10 hours of power for either battery type. A Low Battery icon will display when there is approximately on hour of power remaining
- Note: The instrument does not provide a recharging circuit for these batteries.
Environmental
- 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%
Supplied Accessories
- Audiometry headset, external
- Carrying case
- Audiogram forms (1 pad of 50)
- Directions for Use manual
- Threshold audiometry card
- Power plug/power supply
Optional Accessories
- Ear tone insert phones
- Y-cord headset, 2 plug shielded
- Subject response handswitch
- Patch cord (1)
- Audio cups
- Service Manual
