20
Adjust the volume of the low-pitched tone which has a lower value than the dis-
crimination setting, which normally means iron.
0 = cut-off low tones 5 = maximum low tone level
is a fast and selective detector! Reactivity is a vital setting that deter-
mines the detector’s performance in terms of how quickly it analyzes the signal
from detected objects and its ability to separate the signal response from two or
several targets located close together. This is also known as Recovery speed.
If the soil contains a great deal of iron, hot rocks or other mineralized debris,
soil penetration can be drastically reduced as can the ability of a detector to
locate non-ferrous targets next to ferrous targets. In these conditions, select a
high degree of reactivity which will help to speed up the signal analysis. On the
other hand, if the ground is "clean", it is better to reduce the Reactivity, to make the
MENU
Iron volume
Reactivity
IRON VOLUME
MENU
78
T.ID G.ID
REACTIVITY
EXPERT
MENU
2.5
T.ID G.ID
machine more sensitive to deep targets.
On a beach, as the targets are most often well away from each other, the low Reactivity levels like 0 or 1
will be very efcient. But if you encounter tricky conditions, such as polluted beaches made up of mag-
netic black sand or beaches with variable salinity, increase the Reactivity to 2.5 or 3, thereby becoming
more selective and more stable, which will make it far easier for you to interpret the targets.
Recommended settings :
90
90
3
REACTIVITY
AUDIO RESPONSE
I 4
I 2.5
DISCRI
AUDIO RESPONSE
I 4
I 6.0
R 0 - R 1
R 2 - R 3
R 4 - R 5
No
sound
Short
sound
Full
sound
0 to 1 Large masses and coins, in ground not contaminated by ferrous items.
2 to 2.5 General use, ground with little iron contamination.
3 to 5 iron-contaminated and/or mineralized ground.
E.g. Passing the coil over an iron object close to
the surface then over a good metal target (ring).
A high Reactivity level enables you to distinguish the
ring completely from the iron. The audio signal fully
indicates the target.
With a medium Reactivity level, you begin to detect the
ring. The audio signal partially indicates the target.
With a low Reactivity level, the iron is detected for
longer and completely hides the ring.