DIANGEL EZ-1B Manual de información al usuario - Página 5
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workplace may be impaired while during the entertainment facility. You should therefore be
specifically watchful of your surroundings when wearing this hearing protection.
This hearing protector contains batteries and electrical components that may cause ignition in
flammable or explosive atmospheres. Do not use in environments where sparks may cause a fire
or explosion. Misuse can result in injury or death.
The performance may deteriorate with battery usage. The battery life time varies depending on
the mode of use and volume output. For FM radio mode usage time is about 100h.
When calculating the effective attenuation of the hearing protector, consideration should be given
to the output signals of the radio restoration. The calculated total A-weighted sound pressure
level inside the cup should not exceed 85dB.
The output of the electrical audio circuit of this hearing protector may exceed the daily limit sound
level.
Dispose of the product and batteries in accordance with national legislation.
This earmuff is provided with electrical audio input. The wearer should check correct operation
before use. If distortion or failure is detected, the wearer should refer to the manufacturer for
advice.
User is forewarned that the Bluetooth communication system through the smartphone may not
be suitable for essential safety related communication.
EN352-1 attenuation data
The sound attenuation values for the hearing protector are measured in accordance with
EN24869-1. Please refer to the table below for further information.
Freq (Hz)
63
Mean (dB)
18.6
Std dev (dB)
3.4
APV (dB)
15.2
H = 33 dB, M = 26 dB, L = 21 dB, SNR = 29 dB
Gross weight (excluding batteries) = 362g
EN352-6 electrical input level
Electrical input level (U), mV rms
Mean plus one standard deviation A-
weighted diffuse-field related sound
pressure level (SPL) for the sixteen ears
Maximum auxiliary (AUX) electric input level for which the mean plus one standard deviation A-
weighted diffuse-field related sound pressure level is equal to 82 dB at voltage U = 113 mV rms
A-weighted diffuse-field related sound pressure level for each sample and subject as a function of
input signal level:
125
250
500
18.2
21.2
24.9
2.9
2.8
2.8
15.3
18.4
22.1
29,1
70
1000
2000
4000
34.5
32.9
41.0
3.9
2.2
3.0
30.6
30.7
38.0
Note: APV = Assumed Protection Value
51,3
90,4
113,5
75
80
82
8000
38.9
3.1
35.8
160,2
85
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