User's Manual

11
Marking:
14 Example
2.4.1.3 General technical data
Mass
BoomMike: 17g
EarMike:  6g
2.4.1.4 Sound insulation values with personalised ear moulds and SKLD26 filter
Please take note that the certified ear moulds / earpieces and earplugs are able to function as hearing
protection only if they are worn on both sides and both are covered by a CT-ClipCom system.
For the one-sided version the sound insulation values of the table below may be used, provided that the
other ear is covered with a sufficient sound insulation.
Sound insulation of the personalised ear moulds and SKLD26 filter
H = 27 dB
M = 22 dB
L = 21 dB
SNR = 26 dB
Result
Frequency
[Hz]
Sound insulation
[dB]
Standard deviation
[dB]
APV
[dB]
63
26,0
6,5
19,5
125
28,0
8,7
19,3
250
26,2
5,8
20,4
500
25,4
5,3
20,1
1000
25,6
4,7
20,9
2000
32,5
5,1
27,4
4000
35,6
3,5
32,1
8000
32,4
6,0
26,4
Level dependence with personalised ear moulds and SKLD26 filter
Criterion level
BoomMike EarMike
H = 102,3 dB
M = 102 dB
L = 109,6 dB
H = 98,8 dB
M = 99 dB
L = 111,8 dB
The APV, H, M, L, and SNR values have been established according to EN ISO 4869-2 with parameter
=1.