j) Cleaning and maintenance
This product can deteriorate with use and shall regularly be inspected for serviceability. The Offshore earplug can be cleaned
with a brush or wax loop. To remove heavy pollution special cleaning clothes are available. Please contact Safe Sound Audio
AS (see address below) to get more information.
This product may adversely be affected by certain chemicals. Do never use water, oil or other detergents and cleaning
compounds. This may damage the equipment.
Always store the Offshore Ear plug in the carrying bag when it is not in use.
k) Sound attenuation
Offshore Ear Plug EN 352-2
Frequency (Hz)
125
250
500
1000
2000
4000
8000
Mean attenuation(dB)
St.dev. (dB)
APV (84%)
26,3
5,7
20,6
23,6
3,7
19,9
25,0
3,7
21,3
28,0
2,9
25,1
29,6
4,0
25,6
35,1
4,0
31,1
34,9
6,1
28,7
H
84
= 27 dB
M
84
= 25 dB
L
84
= 22 dB
SNR
84
= 27 dB
H
m
= 30,4 dB
M
m
= 27,1 dB
L
m
= 25,1 dB
SNR
m
= 29,5 dB
H
s
= 3,3 dB
M
s
= 2,6 dB
L
s
= 3,0 dB
SNR
s
= 2,6 dB
l) ATEX and CE certification
This product is ATEX Certified under certificate no. Nemko 12ATEX1277, Nemko 03ATEX1351 and IECEx
PRE 15.0063 (Ui:9.0V, Ii:300mA, Pi:0.6W, Ci:Negligible, Ri:828Ω, Li=3.497mH, Li/Ri: 4.22µH/Ω), and CE approved as PPE
under CE type examination certificate no. 0589/PPE/22/2875 and 0598/22/2931 according to EN 352-1:2020, EN 352-2:2020,
EN 352-3:2020 and EN352-9:2020 by 0598 SGS Fimko Ltd., Takomotie 8,
FI-00380, Helsinki, Finland.
II 2 G EX ib IIC T4 Gb
598
0470
1. Headset AK5850BS (helmet attachment) EN 352-3:2020 AK5850BHS EN 352-1:2020 (headband)
both with audio communication EN 352-6:2020 and may have connection to ear-plug EN352-2:2020.
1A Headband
1B Helmet attachment
5. Cushions
6. Adjustable rods
2. Cup
3. Microphone
7. Connector for Offshore ear-plug
4. Cable
Summary of Contents for EM2140DC-S
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