Quick Start Guide

18
Concentrations of ground mineralization can create
erratic detector sounds (“ground noise”) and reduce
performance if the mineralization is not compensated
for. Axiom has advanced Ground Balance capabilities
to handle all ground conditions—including ironstone
ground and even saltwater.
Note: It is recommended to Ground Balance the
Axiom in each new environment in order to ensure
maximum stability and depth.
Note: DD coils are inherently less susceptible
to ground mineralization than are mono coils,
and therefore may provide better stability and
performance in severely mineralized grounds.
Ground Balance Procedure
• Find an area clear of metallic objects and raise
the searchcoil about 6 inches (15 cm) above
the ground.
• Press and hold the GND BAL button while
bouncing the searchcoil from 1 to 6 inches
above the ground.
• Continue pumping the coil until the ground
response is completely eliminated or becomes
as small as possible, typically within a few
seconds.
• Release the GND BAL button.
Ground Balance Procedure and Indicators
During a Ground Balance procedure, GND BAL will display
on the LCD. Dual Ground Balance values are shown by the
upper and lower 2-digit numbers.
Hold for Ground Balance
Ground Balance values
Typical GB range
Ground / Target
(Upper and Lower numbers)
Saltwater Upper: 0-15
Lower: 0-20
Moist salt bed / salty soil
Upper: 0-15
Lower: 0-20
Moist salt bed / salty soil mixed with ferrous
ground, some hot rocks or terra cotta
Upper: 15-45
Lower: 10-20
Typical ferrous ground without salts, most hot
rocks and terra cotta
Upper: 45-55
Lower: 20-35
Ground Balance Values
The Axiom continually displays the current ground
balance values using two independent numbers.
During the Ground Balance procedure, these numbers
will lock in or stabilize at the best Ground Balance
values. With Ground Track set to OFF, these numbers
will not change until you either Ground Balance again
or engage a Ground Tracking option.