11
5.
Move the coil side to side one more time and stop
over the strongest signal once again. Your target
should be in the center of the search coil.
6.
For quick and accurate pinpointing of strong signals,
place the coil on the ground very close to the target
and push and hold the PINPOINT button. You have
now “tuned-out” most of the target signal so that when
you raise the coil for pinpointing you will only receive a
response directly over or very nearly over the target.
PINPOINTING
PINPOINTING IN MOTION SEARCH MODE
Pinpointing in the search mode will take a little practice but
you may find that for most targets, it’s even quicker than the Zero
Motion Pinpointing Mode. Simply use the same procedure as in
steps 2 through 5 above. The only difference will be that when
you stop the coil over the target you will lose the audio signal.
You must keep the coil moving at least slightly to determine the
location of the strongest signal before you stop it.
1.
For very strong signals, you
may improve your motion mode
pinpointing accuracy by adding
one or more of the following steps:
a.
Lift the coil until the signal is
just barely heard.
b.
Reduce the sensitivity level.
c.
Increase the discrimination
level.
d.
Rest the coil on the ground
and move it back and forth
very slowly.
2.
For very weak signals try the
following:
a.
Move the coil closer to the
ground.
b.
Increase the sensitivity level.
c.
Decrease the discrimination
level.
d.
Speed up the sweep rate
slightly.
When the stem length is properly
adjusted, the 1225-X is balanced for
sweeping in a tight semicircle. Always
overlap your sweeps by at least 50% or
you’ll miss a lot of the deeper targets.
10
SEARCHING
8.
TAKE YOUR TIME.
If you walk too fast
you can’t overlap
your sweeps and
you’ll miss a lot of
ground.
If you sweep too
fast, you’ll lose
sensitivity and miss
the faint tone which
will disappear as
soon as the coil is
raised.
9 .
T h e d i a g r a m
b e l o w s h o w s
the search coil
detection pattern
and how it is affected by sweep speed, discrimination
level and overlapping sweeps in the Search mode.
Figure 5. “sweeping” the search coil. Keep
the search coil parallel and close to the
ground at all times
ZERO MOTION PINPOINT MODE
The pinpoint mode requires no tuning, no motion, detects
all metals and in normal soil it’s even more sensitive than the
search mode. Precise target location is a snap.
1.
Once the presence of a buried target is identified
by the “beep beep” of the 1225-X, simply place the
coil lightly on the ground away from the target area.
Push the PINPOINT button and hold. (At maximum
sensitivity you may hear a faint tone which will
disappear as soon as the coil is raised.)
2.
Raise the coil one-half inch or so and move it from
side to side across the target area a few times.
3.
Stop the search coil over the spot you receive the
loudest response.
4.
Now move the coil slowly forward and back a couple of
times, again stopping over the strongest response.
PINPOINTING
1225xManual-8702520.indd 10
6/9/06 10:07:22 AM
