User's Manual

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

α=1.