13
HOW GROUND SETTING IS MADE?
When the device is switched on it starts with the “GROUND
ADJUST” mode. Ground adjustment should be done before
using the device for correct results. During exploration when
soil composition has changed and when ground adjustment
has to be done again switch to ground mode by pressing the
“GROUND” button and re-adjust ground settings after
checking existing settings.
Ground Setting Phases
1.
When the device is switched on in “LCD” mode, ground adjustment is displayed
automatically.
2.
Lift the search coil 40 cm above ground and press the “RESET”
button.
3.
When in ground mode the effect of ground on the device is
displayed on the monitor as “Ground Effect”. This effect will
change when ground adjustment is made. (NOTE: The search
coil must be lifted 40 cm above the ground and the RESET button to be pressed in
order to reset previous values, otherwise following results will not be reliable.)
4.
Make sure that there are no metal objects or cavities in the ground where ground
setting will be made. If ground setting could not be adjusted it will be repeated in a
neighboring area.
5.
The operator lifts the detector search coil “
40
cm” above the ground and after
pressing RESET lowers the search coil “
3-5
cm” parallel to the ground. If the device
receiving negative effects the operator lifts the detector and presses the “-“ button
several times, if the effect is positive the operator presses the “+” button several
times and presses reset button, then lowers the search coil to 3-5 cm form the
ground. The procedure must be repeated until the ground effect is neutralized. The
device is ground balanced when you do not get to hear any signal when lowering
the search coil for exploring. After the effect is neutralized the operator raises the
detector search coil 8-15 cm above the ground and switches to the explore mode by
pressing the “ACCEPT” button. Stabilizing the detector 8-15 cm from the ground will
give you reliable search results.
Summary of Contents for JeoScan 2D system
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