e) Maintenance and storage
This product can deteriorate with use and shall regularly be inspected for serviceability. Both helmet mounted ear-muffs and
the over the head band ear-muffs shall be fitted, adjusted and maintained in accordance with the manufacturer`s instructions.
The headset shall be kept clean and free of damage. Otherwise, the attenuation can be poor. This product may adversely be
affected by certain chemicals. The headset can be cleaned by ordinary soap and water and can be disinfected with alcohol or
clorehexidine. Avoid liquids into the headsets foam parts. This product can be adversely affected by certain chemicals. The
headset can be used in temperatures from -40
o
C to + 60
o
C. Keep the headset stored in a temperate and dry place.
Hygienic kits (Article no. AK6501), included foam parts and cushions) and other spare parts can be ordered from your supplier
or directly from the factory. The hygienic kits are easy to replace. No tooling is required. Just grab the snap old ear cushion
from inside by your fingers and snap it out. Replace the outer foam plate with the new one and push the new ear cushion back
in place by hand force. The fitting of the ear cushions may affect the acoustic performance and you shall hear a click when it is
in the right position. It shall be no gap between the cushions and the headset cups.
Ear-muffs, and in particular cushions, may deteriorate with use and should be examined at frequent intervals for cracking and
leakage, for example.
The fitting of hygienic covers to the cushions may affect the acoustic performance of the earmuffs.
Additional information and ordering of spare parts can be ordered from A-KABEL AS (se contact information below). Under
normal use the headset should last for several years. If used at daily basis, renewal after 5 years is recommended.
If distortion or failure is detected, the user should refer to the manufacturer`s advice for maintenance.
f) Sound attenuation and mass
AK5850BHS/AK5850BH, EN 352-1
Frequency (Hz)
125
250
500
1000
2000
4000
8000
Mean attenuation(dB)
St.dev. (dB)
APV (84%)
18,3
3,0
15,3
23,5
3,4
20,1
30,4
2,9
27,6
41,4
2,6
38,8
31,4
2,9
28,4
37,8
2,5
35,3
39,9
3,3
36,6
H
84
= 31 dB
M
84
= 30 dB
L84
= 23 dB
SNR
84
= 32 dB
H
m
= 34,0 dB
M
m
= 31,5 dB
L
m
= 25,0 dB
SNR
m
= 32,9 dB
H
s
= 2,7 dB
M
s
= 1,3 dB
L
s
= 2,4 dB
SNR
s
= 1,3 dB
Mean mass: 416 g.
AK5850BS, AK5850B, EN352-3
Frequency (Hz)
125
250
500
1000
2000
4000
8000
Mean attenuation(dB)
St.dev. (dB)
APV (84%)
19,6
2,7
16,9
24,2
3,5
20,7
29,0
3,4
25,6
41,2
3,0
38,2
29,8
3,8
26,0
35,3
2,1
33,2
36,0
3,1
32,8
H
84
= 29 dB
M
84
= 29 dB
L
84
= 23 dB
SNR
84
= 30 dB
H
m
= 32,0 dB
M
m
= 30,8 dB
L
m
= 25,7 dB
SNR
m
= 31,9 dB
H
s
= 3,3 dB
M
s
= 2,0 dB
L
s
= 2,2 dB
SNR
s
= 2,1 dB
Mean mass: 438 g.
g) Size ranges for primary and supplementary helmet combinations
h) ATEX and CE-approval
These products are certified under certificate no Nemko 03ATEX1351 and IECEx PRE 15.0063.
(Ui:9V, Ii:291mA, Pi:1,2W Ci:Negligible, Li=0,9Mh or Li/Ri: 6uH/Ohm) and CE type
examination certificate no. 0598/PPE/22/2891 and 0598/PPE/2931 issued by 0598 SGS Fimko Ltd., Takomotie 8,
FI-00380, Helsinki, Finland
II 2 G EX ib IIC T4 Gb -
40°C≤Ta≤60°C
0470
0598
Helmet Type
Headset Type
Size range
3M G3000
AK5850BS
S/M/L
3M securifit X5500V
AK5850BS
S/M/L
Auboueix IRIS 2
AK5850BS
M/L
MSA V-GARD 520/500
AK5850BS
L
Petzl VERTEX 1000V
AK5850BS
L
Sundström SR580
AK5850BS
S/M/L
Summary of Contents for EM2140DC-S
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