8
DISCRIMINATION CONTROL
In the DISC mode, as you rotate the DISCRIMINATION knob clockwise,
more types of metals are eliminated from detection. Discrimination is a
cumulative elimination system; objects eliminated at a low setting remain
eliminated at higher settings.
SENSITIVITY ADJUSTMENT
Use the SENSITIVITY knob to eliminate Electromagnetic Interference
(EMI). EMI is both naturally occurring and man-made. Common
sources of EMI are power lines, both suspended and buried, and
broadcasting antennas. Operating machinery can also produce EMI.
If your detector chatters or beeps erratically with the SENSITIVITY knob
in the 100% clockwise position, reduce the sensitivity until the chatter
stops (usually to the 1:00 to 3:00 position)
The SENSITIVITY knob can also be used if you suspect the presence of
deeper targets underneath a shallower target. Reduce the sensitivity to
eliminate the detection of the deeper target, so as to properly locate and
identify the shallower target.
TARGET LOCATOR
The target locator meter will move when metal is detected. It shows the
strength of the signal and helps with pinpointing the object. Watch for
the location where the needle on the meter jumps strongly to the right –
that’s where the target is.
ALL METAL MODE
Many utility applications require the all-metal mode of operation so that
iron will be detected. Iron property markers, concrete reinforcing bars
and old pipes are items that may be detected for this purpose. To use
this mode, turn the power control on and adjust sensitivity as needed.
Leave the discriminator control in the off position.
DISCRIMINATION
For utility applications, you may want to eliminate iron if you are
specifically looking for brass or copper pipes or fittings. To use this
mode, turn the discriminator control on and adjust according to the metal
you want to eliminate. For brass, keep the discriminator low. If you are
looking for copper, you may turn the discriminator higher to eliminate
iron and trash items.
There are two tones in this mode:
Lower tone – nickel, brass, zinc
Higher tone – copper, silver
USAGE TIPS
(continued)
UTILITY APPLICATIONS