Operation Manual

5
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GM3+PB
fig.1
1. Setup mode of the detector in mode," manual ground balance ".
Switch,, GB "is placed in position,, MANUAL ” .
he keys,, AUDIO DISC "and,, VCO DISC" is placed in position,, OFF ''.
Potentiometer,, THRESHOLD "is placed in a situation where the detector may slightly make
a little noise,,.
Potentiometer,, FREQUENCY ADJUSTMENT "under the box of electronics (Fig.1) must be
turn to a situation in which the sound level is normal. Search coil begins to move vertically to
the ground (top-down: 3 to 20 - 25 centimeters. Above the surface (Fig.2) and Potentiometer,,
GROUND BALANCE''must be spinning slowly ....
fig.2
In one extreme position of the volume is increased when approaching the head to the ground
and the other away from the ground, Potentiometer is spinning until the sound ceases to be
altered or changed minimally.
Attention:
If you have difficulty in balancing the detector, its good that the Potentiometer,, SENS "to be
placed in, position 1,, on scale. In the work of mineralized soils is advisable to operate at low
power!
In balancing the detector around it there should not be any metal objects!
If during the operation you change the working power detector, ground Balance must be
adjusted again.
The search for metal objects is made by movement of the search drill against the ground
(fig.3, fig.4). Always move the search drill close to the ground, lifting reduces the depth of