Sordin SUPREME BASIC Notice D'emploi page 21

FUNCTION KEYS (figure D)
On and off, (O)
Press key (O) to activate the electronic functions. To switch off, hold the same key (O) pressed in for
1/2 second.
Volume adjustment, (O)
Volume of the ambient sound is adjusted by short presses on the volume keys, ie, down (–) or up (+).
The volume starts in the mode at which it was switched off. The volume can be adjusted in four steps
(Basic Line) or five steps (Pro Line). The output signal from the sound reproduction system of the
product will not exceed known risk levels for damage to hearing. Sound via the speakers is limited to
maximum 82 dB(A) equivalent sound level.
Battery–saving mode
This product is provided with a battery economy function to ensure maximum life of the batteries.
The function automatically switches off the level dependent mode after 4 hours if no key is activated
during this period. To restart, push the key located at the middle of the keypad (O). About 2 minutes
before automatic switch-off a tone will be heard as a warning that sound will be switched off. Press
any key to delay the switch-off by a further 4 hours.
The following supplementary information applies only to Sordin 75301 & 75302:
Connection
Sordin 75301 & 75302 has one input, 3.5 mm, for connecting an external acoustic
source, eg.: communication radio, hunting radio, mobile phone, CD-player, radio, etc.
We recommend that you connect the angled jack plug to the earmuff as this gives the
most secure connection and is least obtrusive. Refer to the operating instructions for
the external audio equipment to ensure that it is correctly connected.
The impedance of Sordin 75301 & 75302 is 32 Ohms.
The circuit must not be subjected to a signal greater than 5 volts to prevent permanent
damage to the circuit.
The following supplementary information applies only to Sordin 75302:
Amplification
At the two highest volume stages Sordin 75302 amplifies the ambient sound.
Battery warning
A tone will be heard when about 40 hours battery life remains. The battery warning will be heard
after 10 seconds in connection with starting up the electronics.
Audio input
The audio input is limited electronically to reproduce sound at a maximum of 82 dB(A).
HEADBAND VERSION (figure F)
Brush excess hair back and out from beneath the cushions with your hand as much as possible. Be
certain that the cushions seal tightly against the head with no interference from objects such as respi-
rator headbands or arms of glasses, in order to obtain the best performance. With the headband over
the head, place the ear cups so as to completely enclose the ears. The ear cups may be slipped up or
down the headband to adjust for a firm, comfortable fit with the headband over the crown of the
head.
FOLDING THE EARMUFFS (figure E)
Extend the headband as far as it will go (fig. E1). Then press the top of the headband to fold the ear-
muffs together (fig. E2).
Make sure that the cushions lie flat against each other and that there are no creases in them (fig. E3).
MAINTENANCE
The outside of the muff and the sealing ring can easily be cleaned with soap and water. Earmuffs and
in particular cushions may deteriorate with use and ageing and should be inspected regularly for
cracks and leakage. The cushions are filled with foam and are replaceable. Worn or damaged parts
are easily replaced (fig. C). Use only hygiene kits from the manufacturer, designed for electronics,
order number 60089. The hygiene kit should be replaced at least twice a year for standard use to
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