Maico MA 42 Operating Instructions

Operating Instructions MA 42
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12 Technical Data
The MA 42 audiometer is an active, diagnostic medical product
according to the class Ia of the EU medical directive 93/42/EEC.
Standards:
IEC 601-1 class I, protection class B
IEC 645-1/ EN 60 645-1: Type 2
IEC 645-2 : Type A
ANSI S3.6-1996 : Type 2 A
ISO 389
UL 60601-1
Medical Device Directive 93/42/EEC
Test-Frequencies:
125 Hz – 8.000 Hz,
optional 125 Hz - 20.000 Hz
Level step:
5 dB, 2 dB or 1 dB level steps
(user selectable)
Maximum Sound Pressure Level:
AC with earphone DD45:
- 10 dB
HL
to 120 dB
HL
BC with bone conduction with B 71:
- 10 dB
HL
to 80 dB
HL
Insert earphones Ear 3A:
- 10 dB
HL
... 120 dB
HL
Sound field speaker CD 220:
- 10 dB
HL
... 90 dB
HL
Test Signal:
Pure tone, pulse tone, warble tone
Masking Signals:
Narrow band noise: 5/12 Octave
filter with the same centre frequency
resolution as pure Tone
White noise: 100 - 20.000 Hz
Speech Noise: 125-6000Hz falling
12 dB/octave above 1 kHz (+/-5 dB)

Maico MA 42 Specifications

General

Brand	Maico
Model	MA 42
Category	Medical Equipment
Language	English