Welch Allyn AM282 Audiometer - User Manual - Manual (Page 27)

4
23
Standards, Specifications, and
Accessories
Standards and Compliance
The AM282 meets
Frequency Range
Intensity
*The above intensity ranges apply to the external headset earphones.
ANSI S3.6 (2004) Specification for Audiometers (Type 4)
IEC 60645-1 (2002) Electroacoustics - Audiological Equipment - Pure Tone Audiometers (Type 4)
IEC 60601-1 (2003) Medical Electrical Equipment Part 1 - General Requirements for Safety
UL 60601-1 Medical Electrical Equipment, Part 1 -General Requirements for Safety
CAN/CSA-C22.2 No. 601.1-M90 (2003) Medical Electrical Equipment - Part 1: General Requirements for Safety
IEC/EN 60601-1-2 (2001) Medical Electrical Equipment Part 1 - Electromagnetic compatibility
requirements
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.
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
Note The maximum output values in dB HL are reduced by 10 dB when insert phones
are used, except for 6 kHz where the maximum dB HL is reduced by 20 dB.
A “+10” dB button extends the maximum at all frequencies by 10 dB.