14
be performed in this mode is to press
„ON – OFF / CLEAR“
for short, as the searching coil has to be
close to the ground surface, at the distance at which one will search. In this way, the signal from the
soil is perceived as zero and each change provoked by a metal object will provoke a sound signal with
high or low tone, according to the type of metal.
At higher levels of mineralization, presence of moisture, active stones or ceramics, most
suitable for balancing is the
"AUTO DISCR + / REJECT"
mode, as most often signals from the
surface of the ground are positive and the balancing of the device to the soils is analogue to the
memorization and elimination of undesired objects – in that case the signal from the soil is undesired.
If at a definite point, the signal from the soils changes within wide limits, for example:
"REJECT:
„-20“ / „-40“ / „-60“ , it is recommended that the minimum deviation is memorized - „-
20“, or one to work in the dynamic modes
„Dynamic“,
in which the device constantly balances itself.
4. 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 for 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 coill 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.
5.Charging storage batteries and indications for their status.
“
STINGER 2
” has a built-in storage package
14,4V / 2,2Ah
, which is able to provide 10-
15 hours of working process without any interruption depending on the chosen power and the
type of the used search coil. Bigger coils consume more power and thus the working time is
shorter.
