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INSTRUCTION MANUAL HD 3500
7.6
OUTDOOR TESTING AND USE
1. Find an area on the ground outside where there is no metal.
2. Place a sample of the material you want the detector to find (such as a gold ring or a coin) on the
ground. (If you are using valuable metal such as gold to test the detector, mark the area where
you placed the item, to help you find it later. Do not place it in tall grass or weeds ).
3. Rotate VOLUME about two-thirds clockwise.
4. Press and release the red button on the handle. Slowly rotate TUNE until the pointer is at or near
0. You should barely hear a tone.
5. While holding the search coil level and about 1-2 inches above the ground, slowly move the search
coil over the area were you placed the sample, sweeping the search coil in a side-to-side motion.
7.7
FINE-TUNING THE DETECTOR
After you become familiar with how your detector works, you can fine-tune it to make it more
selective in what it finds.
∙
Discrimination is the detector' s ability to differentiate between types of metal. The detector' s
DISCRlMINATION setting deterrnines whether the detector will distinguish between different
types of ferrous and non-ferrous metals.
∙
You can set DISCRIMINATION to minimum (fully counterclockwise), to maximurn (fully clockwise),
or OFF MAX. MIN MAX anywhere in between. As you set DISCRIMINATION to higher levels, the
detector first does not detect small pieces of silver paper, then thick foil, and finally metal
objects like pull tabs from aluminum cans.The following table can be used as a reference to
the different positions:
LOW
1 o' c lock position
5 o' c lock position
HIGH
7.8
SWEEPING HINTS
∙
Never sweep the search coil as if it were a pendulum.
∙
Sweep slowly - hurrying makes you miss targets. If the
detector detects the material, it emits a tone and the pointer
moves to the type of metal found. If the detector does not
detect the material, make sure you are moving the search
coil correctly.
7.9
LOCATING A FIND MORE ACCURATELY
Accurate pinpointing takes practice, and we suggest you practice finding and digging
up small metal objects on your own property before you search other locations.
Sometimes, targets are difficult to accurately locate due to the sweep direction. Try changing
your sweep direction to pinpoint a target.
Follow these steps to pinpoint a target.
1. When the detector detects a buried target, continue sweeping the search coil over the target
in a narrowing side-to-side motion. Make a visual note of the exact spot on the ground where
the detector beeps.
82210 - 01.2023 - V5
All metals can be detected
Iron is excluded
Nickel is excluded
Only silver is recognised
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