GMT Super Pulse
Owner’s Manu
al
GMT Super Pulse
Ow
ner’s Manual
5.
Grip the instrument by the ha
ndle, with your arm in the
elbow cup with strap and swee
p the loop/search coil over
the fl
oor
. If t
he i
nst
rum
ent fi
t feels uncomfortable, readjust
clevis/lower rod length with
spring clip button and cam-
lock so that s
earch coil can
be held near the floor without
stooping over
.
6.
Remove the protective pape
r fro
m the two
black arm cup
foam pads. Carefully align pads
on the inside of the elbow
cup, one on each side of the cen
ter rod, and press fi
rm
ly i
nt
o
place.
7.
Adjust the elbow cup strap so
that it is l
oose enough for you
to slide your arm in and
out without loosening each time
you want to set the detector
down. The elbow cup strap pro-
vides extra leverage
and control. However
, s
ome prefer n
ot
to use it.
8.
In
sta
ll the ba
tte
ry pac
k.
Batteries
The
GMT Super Pulse
includes two standa
rd alkaline bat-
tery packs. They supply a nomin
al 12 volts and will power the
GMT Super Pulse
for about 4-5 hours (this can depend on the
quality of the alkali
ne batteries). The
GMT Super Pulse
will
operate until the batteries drop to
about 8.5 volts, at which point
the low battery LED will turn on.
Page 4
Page
9
learn their audio responses. A
US nickel or small gold nugget
works we
ll for
a low con
ductive
tar
get, and a US quarter makes
a good high conductive tar
get.
GMT Super Pulse
is a motion
detector
, so tar
get responses de
pend on the motion of the coil. If
you hold the coil steady over a ta
rg
et, the audio response will
fade back to the threshold tone.
Sweep Method
s
W
ith any metal detector
, the size of the search coil presents
a trade-of
f between de
pth and sensitivity
.
A lar
ger coil of
fe
rs
better depth on lar
ger tar
gets at
th
e exp
ense of sma
ll-
ta
rg
et sen-
sitivity
, and a smaller coil has bett
er
sens
itivity to small ta
rg
ets
,
but at a lesser depth.
Proper sweep technique is im
portant with any detector
.
Round coils tend to have a conical
pattern of sensitivity as illus-
trated below
. As such, coverage
at maximum depth is less than
the s
ize of the coil,
so it is always
reco
mmended that successive
sweeps are overlapped by about 50%:
Besides overlapping each sweep, it
is important to keep
th
e
coil close and parallel to
the ground. Pendulum-swinging the
coil results in loss of depth, a
nd if the ground balance isn’
t per
-
fectly set the variation in l
oop height will create a ground
