DETAILED OPERATING INSTRUCTIONS
Turn the GP 3000 On
Hold the coil away from the ground and metal objects and switch Power
to On.
NOTE When the GP 3000 is turned Off, important
information (e.g. tuning frequency and ground balance) is
saved in internal memory.
If detection recommences in the same location, the user should
not have to re-tune or re-ground balance the
detector.
Set the Volume Control
Volume should be set so that target signals are clear and easy to hear
but loud signals are not uncomfortable to your hearing.
Set the Volume by passing the coil across a large target and adjusting
volume to a comfortable level. Now test a very small target at this level.
Set the Threshold control
Adjust the Threshold control until the threshold is just audible through the
headphones.
NOTE Small surface objects, as well as large deep objects,
will produce very small changes in the threshold. It is
important to set the Threshold control correctly to ensure
that these targets are heard. Experiment with known targets
to assist in setting all controls to suit your hearing.
DETAILED OPERATING INSTRUCTIONS
HINT
Take time to read this manual
thoroughly to obtain the best
performance from your new
GP 3000 detector.
29
OPERATION
5
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