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IMPORTANT! For the best protection, brush aside hair around the ears so the ear cushions fit snugly
against the head. Spectacle frames should be as thin as possible and fit close to the head.
TECHNICAL DATA (B)
(B:1) Attenuation values, SNR
The attenuation values and noise levels for the hearing protector have been tested and approved
according to EN 352-4 2001, EN 352-6 2002 and applicable parts of EN 352-1 2002. Certificate
issued by INSPEC (Registered Number 0194), Upper Wingsbury Courtyard, Wingrave, Aylesbury,
Buckinghamshire, HP22 4LW, United Kingdom.
Explanation of the attenuation value table
1. Weight
2. Frequency
3. Average attenuation
4. Standard deviation
5. Expected attenuation
(B:2) Input signal level/usage time
Maximum permitted audio signal in relation to usage time.
To prevent harmful levels, the input signal must not exceed the stated values (average speech signal
level). The earphone level for long-term average value of music and speech is measured at max 82
dB (A) equivalent noise level according to the PPE directive.
1. Hrs/day
2. Average level/electrical signal X=140,2 mV
(B:3) Sound exposure when using the auxilary input
1. Level under the ear-muff [dB(A)]
2. Input voltage [mVrms]
(B:4) Criterion level
The criterion level is the noise (mesured as A-weighted sound pressure level) outside the hearing
protector that gives 85 dB(A) inside. The outside level depends on the type of noise: H is high
– frequency dominated noise, M is noise that is not dominated by any given frequency and L is low
– frequencydominated noise.
USE (C)
(C:1)
Open the headband.
(C:2)
Slide out the cups. Tilt the top of the cup out, as the wire must be placed on the outside of
the headband.
(C:3)
Adjust the height of the cups by pulling the cup up or down while pressing the headband
down.
(C:4)
The headband should lie across the top of the head.
(C:5)
Press the cups in before collapsing. Leave about 4 mm (1/8") of the headband wire visible.
(C:6)
Collapse the headband. Check that the ear cushions are not creased and that they lie flat
against one another. NOTE! When the headband is to be collapsed, make sure to unplug the
audio input jack (A:11)
(C:7)
On and off Press the centre button and hold for at least 2 seconds.
(C:8)
Increase volume Press the upper (+) button.
(C:9)
Decrease volume Press the lower (-) button.
STORAGE (D)
Do not store this hearing protection in temperatures exceeding +55°C, for example inside a windscreen
or a window.
ATTENTION: When the headband is to be collapsed, make sure to unplug the audio input jack (A:
9)
(D:1)
WRONG All guide wires must be pushed in correctly before the headband is collapsed.
(D:2)
RIGHT The ear cushions should lie flat against each other.
(D:3)
WHEN DAMP Turn the cups outwards. Remove the ear cushions to allow the attenuation
cushions and electronics to dry. Reassemble. See the CARE section.
CARE (E)
CLEANING
Clean/disinfect the cups, headband and ear cushions regularly with soap and warm water.
Note: Do not immerse the cups in water!
REMOVING/REPLACING OUTER SHELLS
To remove outer shells:
(E:1)
Insert tool or your fingers under the edge of the clip and pull it out 3-4 mm
(E:2)
Press/slide the clip downward. Remove the shell
To put outer shells back into position:
(E:3)
Make sure the clip is fully pressed back
Put the shell in place from top to bottom making sure the hook on the top of the shell (E:4)
fit into the hole on inner cup (E:5).
(E:6)
When the shell is in place, press/slide the clip upwards
REPLACING THE BATTERIES
Remove the right hand outer shell, for instruction please see Removing/Replacing outer shells.
Replace the batteries and then put the outer shell back into position, for instructions please see
Removing/Replacing outer shells.
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