
B.
BATTERIES
The
METADEC
II
is
powered
by
either:-
a)
12 HP7 Penlight Batteries
(not
supplied) in 2 six-pack
battery
holders
(supplied
with
detector)
or
b) 2 rechargeable packs (an
optional
accessory).
HP7s are standard batteries and are available
from
garages,
department
s~ores,
etc.
Rechargeable batteries
in
two
packs, together
with
a charger are available
as
a C-Scope Accessory.
It
is
advised
that
to
begin
with
standard HP7s are used.
You
can
then
evaluate
the
sort
of
use
you
give
the
detector
and decide
whether
the
investment
in
rechargeables is
justified.
Battery life
is
dependent
on
many things and
is
difficult
to
generalise on. The
METADEC
II
is
designed
in such a way
that
the
audio discriminate
only
draws significant
extra
current
when a good
object
is
located.
It
is
certainly
recommended
that
headphones are used
as
not
only
does
this
guarantee
better
depth
penetration.
it
also extends
battery
life
substantially, because the loudspeaker
is
by
far
the
greatest
drain
on
the batteries.
If
HP7 batteries are
to
be used
it
is
necessary
to
load these
into
the
penlight
battery
holders
(LI
which
are supplied
with
the
detector
in
the
battery
compartment
(M).
First undo the
battery
cover
IN)
by
turning
the fastener
with
a small
coin
through
90
0
•
This frees
the
fastener and
releases
the
cover,
which
can then
be
lifted
off.
Load the
battery
holders ensuring
thet
the batteries are inserted
the
correct way
round
with
the
+
and - signs on the batteries corresponding
with
those engraved
on
the
battery
holders.
After
inserting
the batteries roll
them
in the holders
to
make
the
connection
good.
Connect
the
battery
holders
to
the
battery
leads (PI in the
battery
compartment
again making sure
the connection
is
firm
and well seated, and place
the
holders
in
the
battery
compartment.
Replace
the
battery
cover
by
locating the
two
lugs
first,
and
then
pushing the end
with
the fastener home.
It
may be necessary
to
align the fastener before pushing
it
home.
Batteries should
not
be
left
in the
detector
if
the
detector
is
stored
or
not
used
for
long periods, thus
avoiding possible leakage and expensive repairs.
DIAGRAM
2.
L. Penlight
Battery
Holders
M.
Battery
Compertment
N.
Battery
Cover
D. Fastener
P.
Battery
Leads.
K.
Din
Socket
U. Recharge
Socket
HS. Headphone
Socket
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