Minelab GPX6000 User Manual page 10

Ground Balance Procedure
In order to achieve good ground balance follow the recommended procedure� The procedure steps through a sequence that
will help you to identify the type of ground you are detecting and its ground noise levels, and then provides the best steps to
manage that noise� Ground is categorised into four types:
` Normal — Ground with very low levels of mineralisation�
` Difficult — Ground that has high levels of mineralisation�
` Conductive — Ground that has high levels of conductivity, often due to high salt content�
` Variable — Ground that has varying levels of mineralisation and/or conductivity from patch to patch�
1. Quick-Trak
2. Adjust Sensitivity
` If the detector is quiet, begin detecting.
` If the detector is still noisy when the coil is pumped up-and-down in the air, then noise is the result of
conductive ground conditions� Continue the steps for conductive ground below.
3. Change to Double-D coil
4. Quick-Trak
5. Adjust Sensitivity
` If the detector is quiet, begin detecting.
` If the detector is still noisy when the coil is swept from side-to-side, then noise is the result of variable ground
conditions� Continue the steps for variable ground below.
6. Change the Ground
Type to Difficult
7. Quick-Trak
8. Adjust Sensitivity
` If the detector is quiet, begin detecting�
CONTENTS
Perform Quick-Trak following the procedure on
will help the detector collect as much information about the
ground as possible for an optimum ground balance�
Adjust the sensitivity level following the procedure
on page 8�
Change to the GPX 14 Double-D coil�
Perform Quick-Trak following the procedure on
Adjust the sensitivity level following the procedure on
page 8�
Change the Ground Type setting to Difficult�
Perform Quick-Trak following the procedure on
Adjust the sensitivity level following the procedure on
page 8�
10
page 9� This
page 9�
page 9�