Fisher M-SCOPE CZ-3D - Manual (Page 18)

16
SEARCHING
Good search techniques are as important to your success as having
a good detector.
1. Make sure your CZ-3D is properly ground balanced and the MODE
switch is in the proper position: SALT for wet ocean beaches,
ENHANCE for just about every other situation.
2. Decide which search mode you’re going to use, Target ID or
Autotune. Recommended starting point: Target ID mode with the
DISC control set at “4”.
3. Set your SENSITIVITY control. Only experience will tell you how to
set it in every situation but you’ll probably want to run it as high as
you can. Recommended starting point: SENSITIVITY 5 . If you’re in
the Autotune mode, set it so that you can just barely hear a slight
audio hum.
4. Adjust your VOLUME control. Remember that a setting above 5 will
amplify the response of faint targets so they sound like a shallow
or large target. Some searchers prefer not to use it above 5 so the
audio response will give them some idea as to the depth and/or
size of the target. Recommended starting point: VOLUME = 10. If
you’re using headphones, adjust the headphone volume controls
for a comfortable, not-too-loud response over loud targets.
5. Once you’ve got your controls properly set, begin your search
by walking slowly and sweeping the search coil in a tight
semicircle.
6. Keep the coil parallel to the ground and as close to the ground as
practical. This is extremely important for maximum coverage and
depth. If you’re searching on a lawn, you may set the coil right on
the grass and slightly “scrub” it.
7. Overlap your sweeps by at least 50%. Remember that your coil’s
search pattern is conical and if you don’t overlap each sweep
you’ll miss the deeper targets.
8. Search in a methodical manner. Pay close attention to where
you’re going and where you’ve been.
9. Keep the search coil moving at a comfortable rate. Remember
that the CZ-3D is a motion detector and responds only when the
coil (or the target) is moving (except in the Pinpoint mode).
10. Take your time. If you walk too fast you can’t overlap your sweeps
and you’ll miss a lot of ground. If you swing your coil too fast you
lose some sensitivity to deep and/or small targets.
11. Figure 7 on the next page shows the CZ-3D search coil pattern
and how it is affected by sweep speed, ground mineralization
and search mode.