d) How to place the earplug into the ear
Seize the back side of the ear plug between your index finger and thumb. The cable shall point upwards in front of the ear.
Slide the earplugs sound opening into the ear with rotating motions until it feels comfortable. Add a light pressure by the index
finger on the earplug until the plug is thoroughly into the ear. It is important to not use too much force.
e) How to remove the plug from the ear
Seize the back side of the ear plug and pull by a slightly forward rotation.
f) Correct placement
The Offshore earplug shall achieve a tight connection to the ear without being uncomfortable or
making a pressure in the ear.
It may take some weeks to get used to the ear plug.
Please take contact with Safe Sound Audio AS if you get lasting problems.
Warning:
These ear-plugs should not be used where there is a risk that the connecting cord
could be caught up during use.
g
)
Earplug fit test
A: You can perform fit testing with VeriPRO equipment. Please see details about the product below:
B: You can also perform a fit test online on the following Elacin website:
https://www.elacin.com/de/funktionskontrolle-de/
h) How to connect the ear plug into the earmuffs
The Offshore earplug shall preferably be used together with AK5850BS or AK5850BHS headset
to get maximum protection.
Connect the ear plug jack connector into the inlet on the left cup of the earmuffs.
Warning:
Do not connect or disconnect the device to the ear muffs or the PTT unit or switch
on/off the radio while the equipment is placed in the ears. Sudden or fast removal of out of the
ear channel may damage the ear drum. It is also important that the interconnecting cable is not
damaged. Shortcuts or other disturbances may cause high noise that can damage the hearing.
Do not remove earplugs by pulling the interconnecting cord.
Warning:
The electrical audio output of this hearing protector may exceed the daily limit sound
level. Electric input level for which the mean minus one standard deviation. The usage time for maximum input voltage that
corresponds to an A-weighted equivalent diffuse-field related SPL of 82 dB(A) over 8 h is 7 seconds at 8732,1 mV
rms
. The A-
weighted diffuse-field related SPL for the maximum input voltage is 118 dB(A) at 8732.1 MV
rms
.
When the offshore Earplug is used alone the A-weighted diffuse-field related sound pressure level is equal to 82 dB at
66 mV
rms
. The dependence between A-weighted equivalent diffuse-field related SPL and input voltage:
Sound Pressure Level
dB(A)
Input Voltage
(mV
ms
)
70
23,5
75
48,0
80
83,7
85
150,6
90
261,5
95
440,3
100
788,7
105
1375,7
110
2433,0
115
4749,6
118
8732,1
i) The complete setup
The earmuffs shall be placed over the ear outside the earplugs. The cables shall be between
the ear muffs and the skin, just in front of the upper ear.
Summary of Contents for EM2140DC-S
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