Minelab GP 3500 User Manual download pdf (Page 20)

front controls

– continued

page 32

l 4 controls and operation l

GP 3500

page 32

Tracking Speed

If searching in Tracking position, the operator can choose the speed that

is best suited to the area. In effect, this gives the operator 4 options to

search in: Slow, Medium & Fast plus the 4th being Fixed Balance which

is the recommended position subject to variability of the ground mineral-

ization.

NOTE – The Tracking Speed switch does not effect the speed of

the initial very fast auto-ground balance. This very fast initial

ground balance only lasts 5 seconds.

If the area being detected has the mineralization changing too often for

the operator to search in Fixed position, the GP 3500 now allows the

operator to gradually step through from Slow auto-tracking, into Medium

speed, then into Fast auto-tracking.

Choosing the preferred speed of tracking should be simply stepping

through the speeds from Slow through to Fast, with the preferred speed

being the slowest speed which still keeps up with the variability of the

ground mineralization.

Tracking

Speed

Figure 4.25

Tracking

speed

front controls

– continued

l 4 controls and operation l

page 33

GP 3500 GP 3500

www.minelab.com

page 33

Quick-Trak push button

Located in the handle of the GP 3500 is a push button which allows easy operation of

ground balancing.

The Quick-Trak push button has two functions depending on where the balance switch is set

on the control box.

If set to Fixed mode:

If the Balance switch on the control box is set into the Fixed position, the detector will

operate with Fixed ground balance while detecting. When the ground mineralization changes

and the operator needs to rebalance, by holding in the Quick-Trak push button, a 5 second

fast rebalance will occur. Once this has been completed, the push button can be released

and the operator can continue detecting in Fixed mode.

If set to Tracking mode:

If the Balance switch on the control box is set to Tracking, the detector will continuously

test and change ground balance to compensate for changes in the ground mineralization,

(the speed of this is controlled by the Tracking speed switch). If a target signal is heard,

the operator can change into Fixed mode by pressing and holding in the Quick-Trak push

button and while the the button is depressed, the detector will operate in Fixed mode for

better pinpointing.

On release of the button a short “beep” will be heard

and a quick auto-ground balance is initiated prior to

returning to Tracking Mode.

NOTE – The Quick-Trak

push button is only

engaged and changing

the operating mode

while the button is

depressed. Once the

button is relaxed, the

Balance mode returns

to that selected on

the control box.

Figure 4.26

Quick-Trak

Push Button

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Minelab GP 3500 User Manual Page 20

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