18
MENU
IRON DISCRIMINATION
CAPABILITY
LARGER
TARGET
SMALLER
TARGET
MEDIUM
TARGET
Type of target detected is largely de-
pendent on the frequency:
These graphics illustrate the sensi-
tivity and the ability to discriminate
ferrous items depending on the fre-
quency as well as the advantage of
multi-frequency programs as they
cover a wide spectrum of targets.
This is a simplified schematic dia-
gram that can vary depending on the
programs and ground conditions.
FMF
40 kHz
35 kHz
28 kHz
21 kHz
15 kHz
7 kHz
4 kHz
offers a wide choice of programs using different frequency configurations :
• Eleven simultaneous multi-frequency programs, each with different combinations of frequencies and
internal parameter settings (see chapter Programs for the specific features of each one). The maximum
frequency used by FMF programs can be configured by the user : 14 kHz - 24kHz or 40 kHz.
• One single frequency program (no. 7 DEUS MONO) built around seven main frequencies: 4.5 – 7.5 – 13 –
17.6 – 25 – 32 – 40.5 kHz, each one with seven wide offset increments, i.e. 49 frequencies in all.
Range of available frequencies of 4 kHz to 45 kHz :
4.08 to 4.76 kHz - 6.94 to 8.08 kHz - 10.39 to 15.15 kHz - 15.62 to 20.75 kHz
22.06 to 28.57 kHz - 29.41 to 35.32 kHz - 36.36 to 45.45 kHz
Remember that generally all frequencies detect all targets, but a high frequency such as 45 kHz will
detect a far greater proportion of small targets than low frequency like 4 kHz, above all if the ground is
mineralized. Conversely, a high frequency will sometimes be less efficient on a large mass or on grouped
coins than a low frequency. The best option is therefore to use
on its simultaneous programs as
a priority, to make the most of an extended range of frequencies and thus maintain sensitivity to a wider
range of targets.
To help you better adapt to your soil and desired targets, the
offers you the possibility to limit the
frequency band used from above. For example : You can configure your machine with 24kHz limit to be
less sensitive to very small conductors and more stable in difficult ground conditions. Selecting the 14kHz
limit can help focus on high conductors while reducing the crackling from some ferrous targets. Selecting
the 40kHz limit will remain the most versatile option because it selects the widest frequency range, which
will be more sensitive to a wider range of targets, non-ferrous targets close to ferrous and better perfor-
mance on some mineralized ground.
Program no. 7 Mono can be useful if the multi-frequency programs are hampered by a severe electromag-
netic environment or if you prefer to focus on a particular target category.
Frequency
