5
EN
2. Operating
1
6
7
5
2
3
4
5
8
9
• Open the battery compartment using a
Philips screwdriver. Correctly insert (+/-)
two AA alkaline or rechargeable batteries. The
remaining battery level is displayed here
(
†
1
).
• The device can be powered through its
USB port
(
†
2
)
with an external battery pack
or connected to a 5V USB power adapter.
It turns off automatically when the battery
power is insuficient to ensure proper operation,
or after 10 minutes of inactivity.
• Connect the supplied headset here
(
†
3
)
.
• The ON/OFF button is here
(
†
4
)
.
• Adjust ampliication by using the up and down
arrows
(
†
5
)
and following the ampliication
guidance icons
(
†
5
)
.
- When the RMS measurement
(
†
6
)
is
displayed in
green
, the ampliication is
correctly set.
- When
red
, the ampliication is too high.
- When
‘’-.-‘’
is displayed, the ampliication is
too low.
• The current ampliication setting is displayed
here
(
†
7
)
.
• Adjust the audio volume by pressing the left
and right arrows
(
†
5
)
until the sound level is
comfortable.
• The current volume setting is displayed
(
†
8
)
only when a headset is connected.
• To replace a damaged sensor
(
†
9
)
, unscrew it
and replace it with a new one.
†
5
: increase
: correct
: decrease
†
6
Red:
too high
Green:
correct
‘’-.-‘’:
too low
