Maico MA 42 Service Manual

Service Manual MA 42
D-0125965 Rev. D
44
18/05/2022
Calibration Values and Max Levels: Headphone HDA 300
Coupler IEC 60318-1 with adapter, ANSI 3.6 and ISO 389-8/ISO 389-5
Fre-
quency
[Hz]
Tone/Ped.
Noise
RETSPL dB
re 20µPa
NBN
RETSPL dB
re 20µPa
Tone/Ped.
Noise
Max Level
[dB HL]
NBN
Max Level
[dB HL]
SOUND
ATTENUA-
TION [dB]
ISO 8253-1
G
F
- G
C
[dB]
125
27.0
31.0
110/98
75
12.4
-12.0
250
20.0
24.0
115/103
80
12.7
-11.5
500
8.0
12.0
120/118
90
9.4
-7.5
750
4.5
9.5
120/118
95
-
-
1000
2.0
8.0
120/118
95
12.8
-1.0
1500
3.0
9.0
120/118
95
-
-
2000
0.0
6.0
120/118
100
15.1
-2.0
3000
-3.0
3.0
120/118
105
-
-
4000
-0.5
4.5
120/118
105
28.8
-4.5
6000
21.0
26.0
105/93
90
-
-
8000
23.0
28.0
100/88
85
26.2
-10.0
9000
27.5
32.5
95/83
80
-
-
10000
18.0
23.0
100/88
85
-
-
11200
22.0
27.0
100/88
80
-
-
12500
27.0
32.0
90/78
75
-
-
14000
33.5
38.5
80/68
65
-
-
16000
45.5
50.5
65/53
55
-
-
Signal
Speech
Speech
Equ. FF
Speech
Noise
Speech
Noise
Equ. FF
White
Noise
IEC 60645-1 RETSPL
20.0
1.0
20.0
1.0
0
IEC Max Level [dB HL]
90
105
85
105
110
ANSI S3.6 RETSPL
14.5
16.0
14.5
16.0
0
ANSI Max Level [dB HL]
95
90
90
90
110
JIS T 1201-2 RETSPL
14.0
1.0
14.0
1.0
n/a
JIS Max Level [dB HL]
96
105
91
105
n/a

Maico MA 42 Specifications

General

Brand	Maico
Model	MA 42
Category	Medical Equipment
Language	English