Omega 8000 Owner's Manual page 13

CONTROL PANEL
TOUCHPAD CONTROLS ARE AS FOLLOWS:
GND GRAB: Ground Grab.
The control allows you to set the detector's internal ground setting equal to the
phase of the ground you are searching over.
See the section on Ground Balancing for a more thorough explanation of this
feature and the reason for using it.
Press-and-hold the GND GRAB touch pad to invoke automatic ground
balancing. This will "grab" the ground value.
In order to determine the most accurate ground value, pump the coil up and down
over the ground while standing in one place over a patch of ground free of metal.
1: Start with the coil 6" above the ground; lower it to about 1" from the ground.
2. Continue this pumping motion until all of the bars in the "GROUND
ERROR" window disappear.
3: At the point where the GROUND value at the bottom right of the screen
stop changing, the detector has correctly measured the ground's phase.
4: Immediately release the control pad to set the detector's internal ground
setting value equal to the last GROUND value displayed.
If you wish to manually change the detector's internal ground setting, press
the or touchpads. Note that each 10 presses of these touchpads will
change the displayed setting by only 1 number. The detector actually has
1,000 different ground settings to choose from, but uses only 2 digits to
display the number. Reasons for this manual ground balancing feature are
explained in the Ground Balancing section of the manual.
FREQ: Frequency Selection
Use this control if detector behaves erratically and you suspect electromagnetic
interference from some other electronic device. This control will change the
detector's operating frequency. Press until you find one of the frequencies which
minimizes the interference.
Choices are:
1 - default frequency
2 - 1st alternate frequency
3 - 2nd alternate frequency
Changing frequency may require you to change the ground balance setting. See
section on ground balancing.
cont.
Touchpad Controls continued on next page
13