Fisher F44 Owner's Manual page 6

Continued)
ASSEMBLY
S-ROD
S-ROD
7
Position S-Rod upright.
3
Rotate the LOCKING COLLAR fully in the counterclockwise direction.
4
Insert your finger inside the tube and make sure the INTERNAL CAM LOCK
5
is flush with the inside of the tube.
Insert the MIDDLE STEM into the S-ROD, with the SILVER BUTTON pointed
6
upward.
Rotate the MIDDLE STEM until the SILVER BUTTON locates in the hole.
7
Twist the LOCKING COLLAR fully in the clockwise direction until it locks.
8
Repeat this process on the LOWER STEM.
9
Using the BOLT and KNURLED KNOB, attach the SEARCHCOIL to the
10
LOWER STEM.
Adjust the LOWER STEM to a length that lets you maintain a comfortable upright
11
posture with your arm relaxed at your side, and the SEARCHCOIL parallel to the
ground in front of you.
Wind the CABLE securely around the STEMS, leaving slack at the bottom.
12
Connect CABLE PLUG to housing.
13
Do not twist the Cable or Plug. Turn Locking Ring only. Use minimal finger
pressure to start the threads. Do not cross-thread. When the Locking Ring is
fully engaged over the threaded connector, give it a firm turn to make sure it is
very tight. When the Locking Ring is fully engaged over the threaded connector,
it may not cover all of the threads.
6
4
LOCKING
COLLAR
5
INTERNAL
CAM LOCK
SILVER BUTTON
6
MIDDLE
STEM
MIDDLE STEM
6
MANUAL GROUND ADJUSTMENT
to be inaccurate. If you stop moving the searchcoil, the bar graph will go blank.
INDICATION % Fe O
3 4
4 Bars -High
3 Bars -Medium
2 Bars -Low
1 Bars -Very Low
None - -
Magnetic susceptibility is expressed in micro-cgs units. In a salt water environment
in the absence of iron minerals, the bar graph indicates relative electrical
conductivity.
In soils with greater than 4,000 micro-cgs units magnetic susceptibility, the
signal from the soil may saturate ("overload") the circuits. This will not harm the
detector but the machine will not be usable in that condition. The solution is to
hold the searchcoil several inches above the soil surface so it isn't "seeing as
much dirt". By listening and watching you will know how high you need to hold
the searchcoil in order to avoid overload.
The highest magnetic susceptibilities are usually found in soils developed over
igneous rocks, in alluvial 'black sand" streaks on beaches, and in red clay soils
of humid climates.
The lowest magnetic susceptibilities are usually found in white beach sands of
tropical and subtropical regions, and soils developed over limestone.
HEADPHONE JACK
This detector has a 1/4" headphone jack. It works with any stereo headphone
(not included) that has a 1/4" plug. When the headphone jack is connected,
The headphone jack has a rubber plug that will
help keep foreign material from entering the control
box. To insure it remains weatherproof, do not use
headphones during rain or very wet conditions.
Continued)
SUSCEPTIBILITY
0.4 - 1.6 1,000 - 4,000
0.1 - 0.4 250 - 1,000
0.025 - 0.1 60 - 250
0.006 - .025 15 - 60
less than .006 less than 15
speaker volume is disabled.
headphones extends battery life and
prevents the sounds from bothering
bystanders. Headphone use also facilitates
detection of the weakest signals.
For safety reasons, do not use headphones
near traffic or where other dangers are
present. This device is to be used with
interconnecting cables shorter than three
meters.
Using
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