ZEKLER 412RD Bedienungsanleitung Seite 9

audio signal doesn't exceed 82 dB(A) effective to the ear.
• Warning: The product shall not be used, if it can't be ensured, that the input voltage doesn't exceed the
maximum input voltage of 150mV.
• For some individuals, excessive sound pressure from earphones and headphones may cause hearing loss.
• Do not use this product in a potentially explosive atmosphere.
• Ensure that the hearing protectors are regularly inspected for serviceability.
For product with level dependent function (Not Applicable for 412R)
• This hearing protector is provided with level-dependent attenuation. The wearer should check correct
operation before use. If disortion or failure is deteced, the wearer should refer to the manufacturers advice
for maintenance and replacement of the battery.
• Warning! Performance may deteriote with battery usage. The typical period of continuous use that can be
expected from the hearing protector with all functions activated is min. 56 hours.
• Warning! The output of the level-dependent circuit of this hearing protector may exceed the external sound
level.
Headband (pic. C)
• Adjust the protector to its largest size and put it on your head.
• Adjust the band so that the protector rests lightly against the crown of your head.
Helmet/Cap mount (pic. D)
• Push the helmet mount into the helmet's slot attachment until it snaps into place.
• Place the earmuffs over the ears and press inwards until you hear a click. Adjust the earmuffs so that
the helmet fits comfortably on your head.
Care
Clean with mild soap. You must be sure that the detergent you use does not irritate the skin. The hearing
protector must be stored dry and clean, e.g. in its original packaging. Do not dip the product in water!
When damp, turn the shells outwards and remove the cushions so they can dry. Remove the batteries.
Warning!
If the instructions above are not followed, the noise attenuation could drastically decrease.
The hearing protector must always be used in noisy environments to provide full protection effect!
Only 100% wear time provides full protection.
Information required by E.P.A. (US)
The level of noise entering a person's ear, when hearing protector is worn as directed, is closely approximated
by the difference between the A weighted environmental noise level and the NRR.
Example:
1. The environmental noise level as measured at the ear is 92 dBA.
2. The NRR is 25 decibels (dB).
3. The level of noise entering the ear is approximately equal to 67 dB.
Caution
For noise environments dominated by frequencies below 500 Hz the C-weighted environmental noise level
shall be used.
Warning
Improper fit of this device will reduce its effectiveness in attenuating noise. Although hearing protectors can be
recommended for protection against the harmful effects of impulsive noise, the noise reduction rating (NRR)
is based on the attenuation of continuous noise and may not be accurate indicator of the protection attainable
against impulsive noise such as gunfire.
USER INSTRUCTIONS FOR FM RADIO, LEVEL DEPENDENT & EXT. AUDIO INPUT
FM Radio
The hearing protector features level-limiting of audio signals from the speakers to maximum 82 dB(A) at the
ear. Remember to adjust the volume when working in noisy environments so that any warning signals etc. can
be heard.
On/Off Volume Radio
Turn the dial (A:10) to switch on the radio. Continue turning clockwise to increase the volume.
In the event of poor reception conditions, the radio automatically switches from stereo to mono mode to
maintain optimal audio quality.
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