Quick start instructions
controls and operation
– continued
easy reference
page 12
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4 controls and operation
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GP 3500
page 12
Step 1.
Set the Coil switch to Double D.
Step 2.
Set Soil switch to N (Normal).
Step 3.
Set Balance switch to Fixed.
Step 4.
Set Iron Discriminate knob to All Metals.
Step 5.
Set Boost to N (Normal) for general detecting.
Step 6.
Set Volume to maximum and Signal to 2 o’clock.
Step 7.
Turn Power Switch on and adjust the Threshold control so that a faint sound is
heard through the headphones.
Step 8.
Adjust the Tone to suit your hearing.
Step 9.
To tune out interference, hold the detector at waist height with the shaft
horizontal and the coil vertical.
Step 10.
Slowly move the coil around your body through a half-circle until the noise from
the interference is loudest.
Step 11.
Place the detector on the ground in that position and push the Tune button
once to start the tuning function. Leave the detector undisturbed until
finished sequence.
Step 12.
Tuning takes approximately 60 seconds. A series of 3 beeps will indicate that the
optimum frequency has been selected.Do not move the detector during the
tuning process
Step 13.
Keep the All Metal / Disc control in the All Metal position.
Step 14.
Put the Balance switch to Fixed and while moving the coil up and down hold
down the Quick-Trak push button in the handle. This puts it into Tracking Mode
Step 15.
Once Ground Balance has been achieved, release the push button.
Step 16.
The detector is now ready for operation.
controls and operation
rear controls
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4 controls and operation – rear
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page 13
GP 3500
GP 3500
www.minelab.com
page 13
TRY OUR WAY FIRST!
Take the time to read this manual thoroughly. The GP 3500 introduces new functions and
changes the way some others that you may have been familiar with, now work. However
experienced you are at using a metal detector, it is important that you read this chapter to
understand these new controls and how to use the GP 3500 to its full capacity.
Rear Control
Functions
There are two control panels: the rear panel and the front panel.
Figure 4.1
Rear Panel
