Fisher 1225-X Manual do Utilizador descarregar pdf (Página 12)

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.

PINPOINTING

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Fisher 1225-X Manual do Utilizador Página 12