STRUMENTI DI
MISURA
Pagina 8 di 14
T
u
tt
i
i
di
ri
tt
i
di
ri
p
ro
du
zi
on
e
e
d
iv
u
lg
az
io
n
e
d
el
p
res
en
te
M
an
u
al
e
T
ecn
ic
o
e
d
el
la
d
o
cu
m
en
ta
zi
on
e
ci
ta
ta
e/
o
a
lleg
at
a,
s
on
o
r
iser
va
ti
.
E
'
fa
tt
o
espr
ess
o
d
iv
iet
o
d
i
ri
p
ro
du
rr
e,
p
u
b
bl
ica
re
o
d
is
tr
ib
u
ir
e
in
fo
rm
azi
o
n
i
tra
tt
e
d
al
p
res
en
te
M
an
u
al
e.
C
o
py
ri
gh
t
b
y
FE
R
V
I
Precautions for use
The connecting cable only connects to the socket in one direction. Do not force the
connection.
Do not disassemble the stem length block.
4.1
Installing the battery
1.
If the metal detector is turned on, turn the volume knob anti-clockwise until it clicks to
turn off the instrument.
2.
Press the battery cover and slide it in the direction of the arrow.
3.
Insert a 9V battery into the housing, making sure to respect the polarity.
4.
Replace the cover.
Precautions for the battery
Always remove old or weak batteries, which can leak and damage the electronic parts.
If the metal detector is not going to be used for more than a week, remove the
batteries from the compartment.
Do not throw away dead batteries!
When the power LED light starts blinking, the batteries will need to be replaced.
4.2
Using headphones
The user can connect a pair of stereo headphones (not included) to the instrument to listen to
the signals privately. Using headphones also increases battery life and makes it easier to
recognise small changes in the sounds produced for a more accurate search.
To connect the headphones, plug them into the 6.3 mm jack located on the rear of the
control unit.
When the headphones are connected, the instrument speakers are automatically
disconnected.
To protect your hearing, follow this procedure if you intend to connect the headphones
to the instrument:
o
Set the volume to the lowest level possible before putting on headphones. Then
turn up the volume to a comfortable level.
o
Do not listen to the sounds produced by the instrument at very high volume
levels. Long periods of listening at a high volume may lead to permanent hearing
loss.
o
Do not use the headphones in traffic areas or in the presence of motor vehicles.
fervi.com