
5. Adjustment of the discrimination –DISCRI knob:
a. Discrimination system of Deepers X5
The Deepers X5 is equipped with a highly efficient discrimination system against
shallow ferrous objects. The system permits the detector to ignore any large iron
targets within the first 20 cm to 40 cm (8 in to 16 in) of the depth, where it is
common to find a great quantity of trash (scrap metals, drums, horseshoes,
barrels, tin cans, old utensils, tools, wires, etc.). With the DISCRI system, whenever
the coil passes over or near the scraps, that should be rejected, the REJECT LED
instantly changes green to red and the sound temporarily cuts off, to indicate the discrimination
of trash. If the detected target is a gold or silver coin, antique bronze, jewel, ring or other
precious metal, or if it is at a great depth (which can be very interesting since most things at
depth were placed there for a reason), whatever the nature of its metal, Deepers X5 will
precisely locate it without losing any of its penetration power, the REJECT LED will remain green
and the sound audible.
b. Adjustment of the discrimination of Deepers X5
To adjust the level of discrimination turning DISCRI knob from its beginning (1 o’clock position)
clockwise until obtaining that the REJET LED turns from the red to green. The RED POINT
corresponds to the middle discrimination range. To obtain the maximum discrimination (which
depends on many variables) the REJET LED has to just become green after being red. This system
has to be adjusted after choosing suitable frequency (FRE knob) and sensitivity (SENSI knob). In
the end, the volume of the desired audio-threshold can be readapted with BALANCE and
AJUSTE potentiometers. By modifying the frequency or sensitivity it is possible that the REJET LED
changes to red; in this case, it is necessary to readjust DISCRI to make the REJET LED return to
green. This system is exceptionally reliable, very simple and powerful, that is easily regulated
according to the desired target to be discriminated without losing absolutely the depth
penetration power of the detector (patent Deepers Detector).
Important: If the REJET LED is red, it is impossible to obtain the audio-threshold and the detector is
inoperative. It is absolutely necessary that the REJET LED is green so that the detector is
operational.
Recommendation: During the search, it is always advised that you maintain the search coil at a
height of 5 to 10 cm (2 to 4 in) above ground in order to avoid the interference due to the
mineralization of the soil or the presence of small metallic fragments. If the ground conditions
permit, in order to be more successful at finding coins or small object at large depths, you can
lower the coil closer to the ground but in this case you run the risk of having a valuable metal
target, such as a coin, be discriminated and rejected with the REJECT lighting up the red LED and
cutting off the sound. If this situation occurs, lift up the coil a couple of centimeters (inches) and
the DISCRI system will then correctly indicate whether the target should be rejected or
maintained (REJECT LED remains green).