Welch Allyn AM 282 Manual Audiometer

The Welch Allyn AM 282 Manual Audiometer provides fine control over intensity, adjustable in 5 dB steps, with a consistent minimum output of -10 dB HL across all frequencies.

Maximum intensity levels vary depending on the frequency tested:

• -10 to 90 dB HL: For frequencies from 500 Hz to 4000 Hz (the highest output).
• -10 to 85 dB HL: For 6000 Hz.
• -10 to 70 dB HL: For 250 Hz and 8000 Hz.
• -10 to 50 dB HL: For 125 Hz.

This precision system maintains high accuracy across its range:

• ± 3 dB Accuracy: Applicable for the range of 125 Hz to 4000 Hz.
• ± 5 dB Accuracy: Applicable for the range of 6000 Hz to 8000 Hz.

Yes, the Welch Allyn AM 282 is engineered for flexible operation, featuring dual power capability:

• AC Line Power: The unit includes a universal autoranging AC adapter (90 to 264 V) for stationary use.
• Battery Power: For complete portability or reliable backup, the audiometer runs on five (5) AA batteries. This provides a minimum of 10 hours of continuous operational time.

This versatile power source ensures the compact and lightweight unit remains functional in various clinical and mobile diagnostic settings.

The Welch Allyn AM 282 Manual Audiometer comes as a complete package, ready for immediate use. The standard kit includes:

• Audiometry headset
• Threshold audiometry card
• (50) Audiogram forms
• Soft storage case for protection and easy transport
• Power plug/power supply (Universal AC-DC adapter)

Yes, the Welch Allyn AM 282 Manual Audiometer is engineered as a lightweight, precision tabletop system, making it highly suitable for transport and use in various clinical settings.

Key specifications confirming its compact size and portability include:

• Weight: Only 2.55 lb (1.16 kg).
• Dimensions (L x W x H): 12.6 inches x 8.8 inches x 3.2 inches (32 cm x 22.3 cm x 8.1 cm).

For added convenience, the system ships with a soft storage case designed to protect the unit during transport and storage.

Yes, the Welch Allyn AM 282 Manual Audiometer is designed for flexibility, operating on both AC line power and battery. When using 5x AA batteries, the unit provides a minimum of 10 hours of continuous operation.

For convenience, a low battery indicator displays when approximately one hour of run time remains.

Yes, the Welch Allyn AM 282 Manual Audiometer is designed for versatility in testing.

While the system ships complete with a standard audiometry headset, it features internal calibration storage compatibility to support the use of optional insert headphones.

This ensures accurate assessments regardless of the compatible listening device used, allowing flexibility in your testing protocols.

The Welch Allyn AM 282 Manual Audiometer offers three distinct tone types for comprehensive hearing assessments:

• Continuous (Steady Tone): This provides an uninterrupted signal, ideal for standard threshold testing.
• Pulsed Tone: The tone is delivered in short bursts at a rate of 2.5 pulses per second, which can be beneficial for precisely defining thresholds.
• FM (Frequency Modulated) Tone: This tone’s frequency is modulated by ± 5% at 5 Hz with a triangular modulation. This dynamic signal can help distinguish the test tone from background noise.

Yes, the Welch Allyn AM 282 Manual Audiometer provides a comprehensive frequency range (125 Hz to 8000 Hz) for thorough hearing assessments.

It tests across these 11 discrete frequencies:

• 125 Hz
• 250 Hz
• 500 Hz
• 750 Hz
• 1000 Hz
• 1500 Hz
• 2000 Hz
• 3000 Hz
• 4000 Hz
• 6000 Hz
• 8000 Hz