Omega 8000 Owner's Manual page 17

GROUND ERROR (continued)
* When the detector's internal Ground Setting is higher than the actual
phase of the ground, the bars on the top of the graph will be illuminated.
The bigger the error is, the more bars will show up.
* When the detector's internal Ground Setting is lower than the actual
phase of the ground, the bars on the bottom of the graph will be
illuminated. The bigger the error is, the more bars will show up.
* If the Ground Error exceeds the level of three bars,
indicating that the maximum error has been reached, and action must be
taken to adjust the Ground Setting.
To maintain maximum detector performance, keep the Ground Error to a
minimum by adjusting the Ground Setting.
Before making an adjustment, it is best to verify the Ground Error as follows:
1. Place the detector into Auto-Tune Mode.
2. Pump the searchcoil up and down over a patch of ground free of metal,
repeatedly moving the coil to within 2" of the ground and lifting it up
about 6" over the ground.
If bars appear at the top of the graph, adjust the Ground Setting by pressing
the until all of the bars disappear. If bars appear at the bottom of the graph,
adjust the Ground Setting by pressing the
While in Auto-Tune Mode, pumping the searchcoil over the ground, you will
also hear audible evidence of an out-of-adjustment Ground Setting. If the
Ground Setting is too low, there will be a difference in the sound as the
searchcoil is moving away from the ground. It will sound like you are pulling
the sound out of the ground. If the Grown setting is too high, it will sound
like you are pushing the sound into the ground.
• If the sound is louder as you raise the searchcoil, press
the ground balance setting.
• If the sound is louder as you lower the searchcoil, press
ground balance setting.
or
until all of the bars disappear.
will appear,
to increase
reduce the
17