Comprehensive Operating Manual & Guide to Metal Detecting
Comprehensive Operating Manual & Guide to Metal Detecting
44
5
F75
SE
F75
SE
Quick Start
Use your F75 right out of the box
1.
Assemble the detector (see instructions beginning page 4).
2
Install four AA
alkaline
batteries.
All positive (button-end) terminals point up.
3.
Turn the knob, located under the armrest, fully clockwise.
This turns the machine on and sets audio volume to maximum.
4. When first turned on, the
F75
starts out in the Discrimination Mode, with:
Sensitivity preset to 60
Discrimination Level preset to 15
Number of Tones preset to 3
Process# preset to dE
Sweep the searchcoil from side to side, parallel to the ground. Keep the searchcoil
moving over the ground. If you stop moving the searchcoil, the sound will also stop.
Probable target type will be indicated at the top of the LCD screen.
5.
If the searchcoil is not in motion and not close to metal, the detector should be
silent.
6.
If you experience false signals from electrical interference, from the soil itself, or
from lots of trash metal, press the MENU button.
Sensitivity
will be highlighted.
Rotate the
Settings
knob to the left (counterclockwise),
Reduce the sensitivity setting until the false signals go away.
After 7 seconds, the machine will exit the menu and return to
normal operation.
7.
Find a patch of ground free of metal, toss a coin on the ground and sweep back and forth
over it a few times to get a feel for how the machine responds.
8.
You are now ready to search.
9. Pull and hold the trigger switch with your index finger to pinpoint the exact location of
targets, making them easier to unearth.
When the trigger is pulled, PinPoint is engaged ….
The searchcoil need not be in motion to detect an object.
The 2-digit numeric display indicates approximate target depth, in inches.
When searching on a beach, it is best to either search in Motion All Metal Mode, or to search
with the discrimination level set just high enough to eliminate iron, because the value of beach
finds is largely in the jewelry rather than in the coins. You will dig a lot of aluminum trash, but
the digging is easy, and you can tell people that you are helping to clean up the beach and
make it safer for people's feet. We recommend the use of a special
sand scoop
for recovering
valuables from the sand quickly -- most metal detector dealers sell these.
The electrical conductivity of the water itself can pose some challenges. You may get false
signals when going into and coming out of the water, making it necessary to pay careful
attention to keep the coil either in or out of the water, but not to touch the surface. This effect
may be observed in either fresh or saltwater.
Saltwater Hunting
Saltwater is highly conductive, and produces a strong signal which is like that of metal.
The
F75
is not specifically designed for high performance in saltwater, but can be used in this
environment.
If you desire to search in or over saltwater, the following measures will usually be sufficient to
silence the saltwater response while retaining acceptable sensitivity:
1. Set the
sensitivity
in both modes to
less than 30.
2. Ground balance the machine manually in Motion All Metal Mode.
3. Search in the Discrimination Mode with a discrimination setting
higher than 25.
Detecting Activities (continued)
Shallow Water Hunting (continued)
F75ltdBLK-MANUAL.qx6 3/31/14 2:01 PM Page 5
