MODE AUTO

42ADJUSTING GROUND BALANCE

43

Auto

Using the detector in All Metal, find a clear area of ground without any targets.

Hold the coil parallel and 4” (10 cm) above the ground. Select Ground Balance. A constant hum known as the Ground Balance tone will sound when the coil is held steady.

Auto

Press to activate Automatic Ground Balance, and begin to continuously lower and raise the coil over the ground. The letters AU will appear and the menu scale segments will be animated as a progress bar. The detector will automatically select a Ground Balance setting.

4” (10 cm)

Manual

Using the detector in All Metal, find a clear area of ground without any targets.

Hold the coil parallel and 4” (10 cm) above the ground. Select GROUND BALANCE.

Continuously lower and raise the coil over the ground and listen to the Ground Balance tone. Try to lower the coil as close to the ground as possible without touching it.

If the detector is in Tracking, and then the Ground Balance is manually adjusted, Tracking is automatically de-activated.

Track

Tracking Ground Balance follows the changes in ground conditions and constantly adjusts the Ground Balance while detecting.

As Tracking Ground Balance constantly updates the Ground Balance automatically, repeated passes over a target may result in the detector balancing to the target instead of the ground, diminishing the target signal.

It is recommended that Tracking Ground Balance is toggled off when a target is detected.

If the tone is low, increase the Ground Balance setting using +, if the tone is high, decrease the setting using . Aim for a minimum volume and the transition between a low tone and a high tone. The menu scale and Numeric ID will indicate the chosen setting.

If the detector makes a sound when the coil goes down, increase the Ground Balance setting using +. If the detector makes a sound when the coil goes up, decrease the Ground Balance setting using . Aim for a minimum volume variation. The menu scale and numeric ID will indicate the chosen setting.

Press TRACK to activate Tracking Ground Balance.

While Tracking Ground Balance is activated, the Tracking icon and current Ground Balance value will be displayed. The setting scale will also become animated.

To de-activate, press TRACK again.

Once TRACK is pressed, the detector will Track very fast for the first three seconds. The detector will then continue to Track at a slower speed until Track is de-activated.

Low

High

Minimum

Sound

If Ground Balance is between two numbers, select the lowest number.

Tracking can be activated in either the detection or the Ground Balance screen.

When Pinpoint is activated, Tracking Ground Balance is automatically disabled. When Pinpoint is deactivated, Tracking Ground Balance is automatically re-enabled.

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Minelab 4901 - 0059 quick start Adjusting Ground Balance, Auto