Operation Manual touchTymp MI 26 and MI 36 Version
8511780 Rev. 4
88
30/06/2021
Calibration Values: High Frequency Headphone DD450
Coupler IEC 60318-1
Fre-
quency
[Hz]
Tone
IEC 60318-3
RETSPL dB
re 20µPa
NBN
IEC 60318-3
RETSPL dB
re 20µPa
Tone
Max Level
[dB HL]
NBN
Max Level
[dB HL]
SOUND
ATTENUA-
TION [dB]
ISO 4869-1
125
30.5
34.5
95
70
12.5
250
18.0
22.0
105
85
12.7
500
11.0
15.0
115
90
9.4
750
6.0
11.0
115
95
-
1000
5.5
11.5
115
95
12.8
1500
5.5
11.5
110
95
-
2000
4.5
10.5
110
95
15.1
3000
2.5
8.5
115
95
-
4000
9.5
14.5
110
95
28.8
6000
17.0
22.0
100
85
-
8000
17.5
22.5
100
85
26.2
White Noise
-
0.0
-
110
-
Calibration Values: Bone Conductor Radioear B71
Coupler ISO 389-3, ANSI S3.6
Frequency
[Hz]
Reference equivalent
threshold
force level for tone
Max level
ISO 389-3
[dB] (re 1µN)
Tone
[dB HL]
250
67.0
45
500
58.0
65
750
48.5
70
1000
42.5
70
1500
36.5
70
2000
31.0
75
3000
30.0
70
4000
35.5
70
6000
40.0
50
8000
40.0
40
White Noise
42.5
65
Summary of Contents for touchTymp MI 26
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