Nokta detectors Fors Gold User Manual

Page 26

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The device gives an estimated depth reading based on signal strength in the pinpoint

mode. When the pinpoint button is pressed and the target is approached, the depth

reading will appear in ''cm.'' on the LCD panel and the numeric display simultaneously.

Approximate depth is provided based on the assumption that the target is a typical

modern coin. The real depth will vary based on target size. The device will give a greater

depth reading for smaller targets and for larger targets, the depth reading will be smaller

than they really are. In fact, pinpointing is used for target location and not depth

indication. Therefore, we suggest that you use the depth reading for judging the proximity

of the target.

FORS Gold is a very fast responding detector. When you detect a target with the FORS

Gold, in order to get an accurate ID of the target, instead of narrowing the sweeps and

making quick sweeps over the target like in other detectors, you should make wider and

deliberate sweeps. If the sweep speed is wrong, the device cannot identify the target

accurately and the IDs may bounce around. In addition, when you are sweeping the search

coil, pay attention not to tilt it up or down and always keep it parallel to the ground.

Shallow targets may give multiple responses to the device. If you suspect a shallow target,

lift the search coil and sweep slowly until you get a single response. Similarly, large targets

may cause an overload in the search coil and the device may give an alarm sounding like a

siren. At the same time ''Overload'' message will appear on the LCD panel. In such a

situation, raise the search coil until the message disappears.




Sometimes the device may receive signals although there is no real target. There are a few

different causes for this. Most common ones are ground mineralization or hot rocks,

electromagnetic interference in the surrounding environment, operation of another

detector nearby, rusty iron and corroded foil, and sensitivity and threshold set too high.

The electromagnetic interference can be eliminated by reducing sensitivity. If another

detector is working nearby, you can change your location and continue your search. For

ground mineralization or hot rocks, and sensitivity and threshold set too high, please read

the related sections. (Ground Balance, Hot Rocks and Searching In Rocky Areas, Metals

Under Hot Rocks, Sensitivity and Threshold).


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