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MA 40 Audiometer
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Features
Specifications
Air conduction from 125 Hz to 8 kHz
Insert phones capability
Pure, pulse and warble tone
Bone conduction and masking
Insert phones compatibility
Built-in RS232 interface for PC and NOAH capability
Frequency Accuracy
+/-3% maximum
Rise/Fall Time
35 msec typical
Distortion
5% typical, 3% maximum
Crosstalk
-100 dB minimum
On/Off Ratio
Greater than 90 dB
Frequency modulation
+/-5% frequency modulating rate at 5 Hz
Voltage Requirements
117 volts AC, 220 volts AC available
Dimensions
12.5" W x 6.25" H x 15.5" D
32 cm W x 16 cm H x 40 cm D
Weight
16.5 lb/7.5 kg
Frequency Range
125 Hz to 8000 Hz
Hearing Level Range
Air Conduction
-10 dB HL to 110 dB HL
Bone Conduction
-10 dB HL to 70 dB HL
Narrow Band Attenuation
-10 dB HL to 110 dB HL
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