REX Delta 4 Manuel d'instructions télécharger pdf (Page 7)

Another easy method is to sweep the coil from side to side across the target in

very short sweeps as you slowly move forward and backward acros s the target.

Slow down the sweep rate and shorten the sweeps until you just barely get a

response at one spot. The target will be directly below the coil center at this

response time – fig.4

fig.4

5. The detection depth depends on the following:

-size, shape and location of the object in the soil. The bigger the reflecting

surface of the object the deeper it is to be found;

-soil composition and mineralization level – the drier and more homogeneous

the soil the easier it will be to adapt the device and f or the device to detect

deeper. Under stones, dry sand or in clay utensil, metals are easier to be found

than in freshly dug out or damp soil.

-the longer the object has been in the soil the easier it will be to be found as a

result of the good contact with the soil.

-type of detecting coil. The bigger the diameter of the coil the deeper it will be

able to detect metals.

-operator's experience and skills.

You can do field tests by yourself using the device if you bury different metal

objects in different depth but you should leave them in the ground for at least

3 months. Thus the test results will be more reliable. You should mind the soil

type and the moisture composition in it. Best results are received when the soil

is dry.

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REX Delta 4 Manuel d'instructions Page 7