Manual Trebs 99769 (page 24 of 34) (English, German, Dutch, French)

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4.5 Pinpointing a target

Accurately pinpointing a target makes digging it up easier.

Accurate pinpointing takes practice, and we suggest you practice finding and digging up small metal

objects on your own property before you search other locations.

Sometimes, targets are difficult to accurately locate due to the sweep direction. Try changing your

sweep direction to pinpoint a target.

Follow these steps to pinpoint a target.

1. When the detector detects a buried target, continue sweeping the

search coil over the target in narrowing side-to-side motion. Make a

visual note of the exact spot on the ground where the detector beeps.

2. Stop the search coil directly over this spot on the ground. Then move the

search coil straight forward away from you and straight back toward you a

couple of times. Make a visual note of the exact spot on the ground where

the detector beeps.

3. Repeat Steps 1-2 at a right angle to the original search line, making an “X”

pattern. The target should be directly below the “X” at the point of the

loudest response.

Note:

 If trash in an area is so heavy that you get false signals, slow your sweep speed and use shorter

sweeps.

 Recently buried coins might not respond the same as coins buried for a long period of time because

of oxidation.

 Some nails, nuts, bolts, and other iron objects (such as old bottle caps) oxidize and create a “halo”

effect. A halo effect is caused by a mixture of natural elements in the ground and the oxidation

created by different metals. Because of the metal mixtures, target signals might not be in a “fixed”

position. This effect makes these objects very hard to detect accurately.

If your detector is not working as it should, follow the suggestions below to see if you can eliminate

the problem.

Problem

Suggestions

The detector displays false

signals.

You might be sweeping the detector’s search coil too fast or at the

wrong angle. Sweep the search coil more slowly and hold the

detector correctly. See “Testing and Using the Detector” and

“Pinpointing a Target” .

The detector might show a false signal if it detects heavily oxidized

metals. Try pinpointing the target from several different angles

(See “pinpointing a Target” ). If the detector does not display the

same signal each time, the target is probably heavily oxidized

metal.

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Trebs 99769 Manual

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