nalanda MD030, User Manual

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Move the search coil slowly again, let the single frequency tone turns louder, and
the signal frequency cursor gets more lighted.
d) Repeat the operation and approach the target, until you lock the location of the
metal target. You could make notes on the ground by the center of search coil, to
facilitate your excavation.
e) In the process of the PINPOINT, the depth cursor will turn into the signal strength
cursor, which denotes the distance between the center of the search coil and the
target, to help you pinpoint the location. Finally, the depth cursor will remain at
the position of 2”. In fact, it means the target is near the center of the search coil.
7. Depth and Target Indication (only in the motion mode)
Preset the detector in the motion mode. The LCD screen will show the rough
metal target types and the rough target depth.
When the position and type of the target are determined, the detector will send a
repeated signal. If in the same place, the discrimination display is inconsistent, it
means the target may be false, or it may be the trash metal or highly oxidation metal.
Trough practice, you must bear in mind only the repeatable signal existent, then you
do excavation.
When finding a metal target, the identification cursor will indicate the metal
type. The identification pattern, based on the metal conductivity, arrange in low to
high order from left to right. The gold ring and locking pieces will appear in the
position of MID RANGE. The silver objects will appear in the right. In the neutral
soil, the discrimination indication is more accurate, while in the mineralization or
saline soil, the discrimination indication will have various degree of deviation.
The above discrimination is just a reference, it is not full accurate.
The depth indication is accurate for coin-sized objects. Large objects and
irregularly-shaped objects will yield less reliable depth readings. If you sweep at the
same place for several times, and show the same depth, then it is a more accurate
detection. If the depth indication varies, try to change the sweeping angle. There may
be more than one target present.
Remind you once again, when detecting in the wild, due to the impact of the
ground condition, the discrimination indication and depth indication will be all
deviation. The composition, size and oxidation of the metals will all affect the
indication result. It’s necessary for you to consider these factors before choosing
elimination a certain metal or determining whether there are precious metals present.
Not to eliminate the precious metals.
8. The use of the non-motion mode.
In fact, the sensitivity in the non-motion mode is high, search metals directly
using non-motion mode is also a choice. In some regions, the ground is too narrow to
sweep search coil, you could choose the PINPOINT mode. In the severe
mineralization or saline region, and in the places where there is too much interference,
you could try to sweep using PINPOINT directly.