Minelab 3011-0301 User manual

4903-0059-1
Minelab Accessory Ferrite
Field Guide
www.minelab.com
To achieve optimum ground
balance, the GPZ 7000 requires
as much different data about the
ground as possible, especially
variations in the soil mineralisation.
Ground balancing using a ferrite means that less soil needs
to be covered during the initial ground balance period
because the ferrite artificially adds very useful data to assist in
achieving an accurate ground balance.
Remember to
ground balance
using a side‑to‑side
sweep motion,
not the traditional
up‑down motion.
For more information on ground balancing your GPZ 7000, visit
www.minelab.com to view and download the ‘GPZ7000 Tips for
Better Ground Balance’ knowedge base article (KBA 26).
Minelab Accessory Ferrite
(Part No. 3011‑0301)

Ground Balance with the Ferrite
1. Find an open area free from targets and place the ferrite on
the soil surface.
2. Turn GPZ 7000 ON.
3. Select Quick Start on the Detect page.
4. Select Reset Audio and Detection Settings.
5. Carry out Noise Cancel.
6. When ground balancing, press and hold the Quick‑Trak
trigger, then start to sweep the coil at normal detecting
height in a figure 8 motion.
IMPORTANT: Make sure that you pass the coil over the ferrite
almost immediately when you start the ground balancing
procedure.
7. Continue to sweep the coil over as much ground as
possible, for 10–12 seconds, while passing the coil over the
ferrite every sweep, as shown.
NOTE: Once
the audio tone
remains quiet
and constant
when the coil is
swept over the
ferrite, ground
balance is
complete.
Ferrite
8. Release the Quick‑Trak trigger button and start detecting.