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Welch Allyn Audiometer AM 23200 Manual
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There's no question that hand-held audiometers are important screening tools. Welch Allyn's AM 232™ Manual Audiometer brings audiometric testing capabilities to a new level of affordability.
Features:
- Available with AC power only, or AC and rechargeable battery.
- Allows quantifying hearing loss related to otitis media, ototoxic drugs, presbycusis, or any of the many factors that affect hearing.
- Obtains the precise threshold of patients' hearing to better identify specific patterns of hearing loss.
- Enables testing in a full range of frequencies and intensity levels with steady, frequency-modulated, and pulsed stimulus modes.
- Test frequency values are easily visible at the dial.
- Displays HL levels in large, easy-to-see numbers on the LCD.
- Silent-functioning front panel controls prevent patient cueing; removable cover functions as a screen between the operator and subject.
- Sleek, ergonomic design for easy room-to-room portability; takes up minimal counter space.
- Microprocessor-based technology assures years of dependable service.
- 1-year warranty.
Key Components
- AM 232™ Manual Audiometer, Only
- Replacement Headset (THD 39) (Calibration with unit required)
- AM 232™ Transformer Only
- Audiogram form (1 pad of 50, 10 pads per case)
- Technical Specifications
- Standards
- The AM 232 meets ANSI S3.6 and IEC 645 Type 4 Audiometer Standards, and IEC 601-1, CSA C22.2 No. 601-1, and UL 544 electrical standards.
Frequency Range
- Discrete Frequencies: 125, 250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000, 8000 Hz
- Accuracy: ±3%
- Total Harmonic Distortion: <2%
Intensity
- Ranges:
- 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
- (increments of 5 dB steps)
- NOTE A “+10” dB switch extends maximum at all frequencies by 10 dB.
- Accuracy: 125 to 4000 Hz, ±3 dB
- 6000 to 8000 Hz, ±5 dB
- Signal to Noise Ratio: >70 dB
Tone Type
- Rise/Fall Time: 20 to 50 msec
- Continuous: Steady when present bar depressed
- Pulse: 2.5 pulse/Sec
- FM: 5 Hz, ±5%
Headset
- Telephonics TDH39 Earphones with MX41AR Cushions (60 ohm impedance)
Power
- Line Voltage: 100 to 120 V or 200 to 250 V (±10%)
- Range: 50 to 60 Hz (±5%)
- Consumption: 9 Watts
Battery
- Types: Rechargeable (NiCad) or Non-Rechargeable (Alkaline)
- Range: 7.0 V to 9.0 V
- Capacity: NiCad—22 hours continuous operations, Alkaline—45 hours continuous operations
Mechanical
- Dimensions: 13.25" W x 14" D x 3.75" H (33.66 cm x 35.56 cm x 9.53 cm)
- Weight: 5.6 lb (2.53 kg) net 8 lb (3.64 kg) shipping 10 lb (4.55 kg) shipping with battery included
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