GMT Super Pulse
Owner’s Manual
GMT Super Pulse
Owner’s Manual
5. Grip the instrument by the handle, with your arm in the
elbow cup with strap and sweep the loop/search coil over
the floor. If the instrument fit feels uncomfortable, readjust
clevis/lower rod length with spring clip button and cam-
lock so that search coil can be held near the floor without
stooping over.
6. Remove the protective paper from the two black arm cup
foam pads. Carefully align pads on the inside of the elbow
cup, one on each side of the center rod, and press firmly into
place.
7. Adjust the elbow cup strap so that it is loose 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, some prefer not
to use it.
8. Install the battery pack.
Batteries
The GMT Super Pulse includes two standard alkaline bat-
tery packs. They supply a nominal 12 volts and will power the
GMT Super Pulse for about 4-5 hours (this can depend on the
quality of the alkaline 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.
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learn their audio responses. A US nickel or small gold nugget
works well for a low conductive target, and a US quarter makes
a good high conductive target. GMT Super Pulse is a motion
detector, so target responses depend on the motion of the coil. If
you hold the coil steady over a target, the audio response will
fade back to the threshold tone.
Sweep Methods
With any metal detector, the size of the search coil presents
a trade-off between depth and sensitivity. A larger coil offers
better depth on larger targets at the expense of small-target sen-
sitivity, and a smaller coil has better sensitivity to small targets,
but at a lesser depth.
Proper sweep technique is important 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 size of the coil, so it is always recommended that successive
sweeps are overlapped by about 50%:
Besides overlapping each sweep, it is important to keep the
coil close and parallel to the ground. Pendulum-swinging the
coil results in loss of depth, and if the ground balance isn’t per-
fectly set the variation in loop height will create a ground
(13 Seiten)
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