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1. COMPONENTS
1.1 Headband (Figure A)
(A:1) Headband
(A:2) Headband padding (PVC foil)
(A:3) Headband wire (stainless steel)
(A:4) Two-point fastener (POM)
(A:5) Ear cushion (PVC foil and PUR foam)
(A:6) Attenuation cushion (PUR foam)
(A:7) Cup
(A:8) Speech microphone (electret microphone)
(A:9) On/Off/Mode
(A:10) +
(A:11) –
(A:12) Antenna
(A:13) Speech microphone input (J22)
(A:14) PTT (Push-To-Talk button)
(A:15) Battery cover
2. FITTING AND ADJUSTMENT
NOTE: Brush aside hair around your ears so the ear
cushions (A:5) fit snugly.
Spectacle frames should be as thin as possible and fit
close to the head to minimise acoustic leakage.
2.1 Headband
D:1
D:2
(D:1) Slide out the cups and tilt the top of the cup out, as
the cable must be on the outside of the headband.
(D:2) Adjust the height of the cups by sliding them up or
down while holding the headband in place.
(D:3) The headband should be positioned across the top
of your head.
2.2 Neckband
D:4
D:5
(D:4) Place the cups in position over the ears.
(D:5) Keep the cups in position, place the head strap on
top of your head and lock it tight in position.
(D:6) The head strap should be positioned across the top
of your head.
3
D:3
D:6
2.3 Helmet attachment
D:7
D:8
D:11
D:10
(D:7) Insert the helmet attachment in the slot on the helmet
and snap it into place (D:8).
(D:9) Work mode: Press the headband wires inwards until
you hear a click on both sides. Make sure that the cups
and the headband wires do not press on the edge of the
helmet when in work mode as this could reduce the noise
attenuation of the earmuff (D:10).
(D:11) Ventilation mode: To switch the unit from work mode
to ventilation mode, pull outward on the ear cups until you
hear a click. Avoid placing the cups against the helmet
(D:12) as this prevents ventilation.
Microphone
To maximize the performance of the speech microphone in
noisy areas, position the microphone very close to your
mouth (less than 3 mm or 1/8 inch).
3. USAGE/FUNCTIONS
3.1 Inserting batteries
Use a screwdriver or the like to open the cover by turning
the screw anticlockwise.
Insert the 1.5 V AA batteries. Check that the battery polarity
(+/–) is correct before closing the cover (see diagram on
battery cover).
Low battery level is indicated by a voice message: "battery
low", repeated every five minutes. If the batteries are not
replaced a "battery empty" warning will eventually be
heard. The unit will then switch off automatically.
NOTE: Performance may deteriorate as the batteries get
low.
D:9
D:12
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