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Comprehensive Operating Manual & Guide to Metal Detecting
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22
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Comprehensive Operating Manual & Guide to Metal Detecting
53
LCD Visual Display (continued)
conditions. Raise the coil until the message disappears; the siren sound will also stop.
Resume normal detection.
The message RAISE COIL only appears when using the bc process, accessed through the
PROCESS # menu selection. This message indicates the presence of a target which may be
too close to the searchcoil to be accurately identified. For better target identification, sweep
the searchcoil farther away from the surface of the ground.
The message PUMP COIL TO GB will appear when you push the trigger forward to ground
balance. See the Ground Balance section of this manual for instructions.
The message CAN'T GB can only appear when the trigger is pushed forward, invoking
FASTGRAB™ automatic ground balancing. This message appears when the detector is
unable to measure the soil in a manner suitable for ground balancing. This message is usually
the result of the presence of metal. Try another spot to find an area free of metal.
BACK LIGHT
The LCD is back-lighted for use in low light and dark conditions. The backlight is always
illuminated, but the illumination is usually not evident in daylight. You cannot turn the backlight
off. The single high-efficiency light emitting diode providing the illumination is a low current
device and has a negligible impact on battery life.
28
Ground Balancing (continued)
MANUAL GROUND BALANCING
In most situations, it is preferable to push the trigger switch to activate FASTGRAB™
automatic ground balancing. Generally, it is best to first let the computer automatically cancel
interference from ground minerals. However, for searching on a wet saltwater beach, or
searching in an area with so much metal trash that there is no clean ground for the computer
to sample, we recommended that you manually ground balance. Manual ground balancing
requires a bit of skill, acquired with some practice.
The range of ground balance settings indicated on the display range from 0 to 99; however,
each displayed number spans 5 detent steps on the settings knob. The actual internal ground
balance settings change with each step; there are a total of 500 different settings. Under some
ground conditions you may be able to hear the individual steps in the setting.
The Fe
3
O
4
bar graph on the LCD display indicates the amount of magnetic mineralization. The
searchcoil must be in motion to measure Fe
3
O
4
. The most accurate measurement is obtained
by pumping the searchcoil, as explained in the Ground Balancing procedure.
The two-digit GB Setting number displayed on the LCD indicates the type of ground
mineralization. Some typical ground mineralization types are:
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Comprehensive Operating Manual & Guide to Metal Detecting
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Comprehensive Operating Manual & Guide to Metal Detecting
53
LCD Visual Display (continued)
conditions. Raise the coil until the message disappears; the siren sound will also stop.
Resume normal detection.
The message RAISE COIL only appears when using the bc process, accessed through the
PROCESS # menu selection. This message indicates the presence of a target which may be
too close to the searchcoil to be accurately identified. For better target identification, sweep
the searchcoil farther away from the surface of the ground.
The message PUMP COIL TO GB will appear when you push the trigger forward to ground
balance. See the Ground Balance section of this manual for instructions.
The message CAN'T GB can only appear when the trigger is pushed forward, invoking
FASTGRAB™ automatic ground balancing. This message appears when the detector is
unable to measure the soil in a manner suitable for ground balancing. This message is usually
the result of the presence of metal. Try another spot to find an area free of metal.
BACK LIGHT
The LCD is back-lighted for use in low light and dark conditions. The backlight is always
illuminated, but the illumination is usually not evident in daylight. You cannot turn the backlight
off. The single high-efficiency light emitting diode providing the illumination is a low current
device and has a negligible impact on battery life.
28
Ground Balancing (continued)
MANUAL GROUND BALANCING
In most situations, it is preferable to push the trigger switch to activate FASTGRAB™
automatic ground balancing. Generally, it is best to first let the computer automatically cancel
interference from ground minerals. However, for searching on a wet saltwater beach, or
searching in an area with so much metal trash that there is no clean ground for the computer
to sample, we recommended that you manually ground balance. Manual ground balancing
requires a bit of skill, acquired with some practice.
The range of ground balance settings indicated on the display range from 0 to 99; however,
each displayed number spans 5 detent steps on the settings knob. The actual internal ground
balance settings change with each step; there are a total of 500 different settings. Under some
ground conditions you may be able to hear the individual steps in the setting.
The Fe
3
O
4
bar graph on the LCD display indicates the amount of magnetic mineralization. The
searchcoil must be in motion to measure Fe
3
O
4
. The most accurate measurement is obtained
by pumping the searchcoil, as explained in the Ground Balancing procedure.
The two-digit GB Setting number displayed on the LCD indicates the type of ground
mineralization. Some typical ground mineralization types are:
