Searching Underwater - Fisher Labs CZ-21 QuickSilver Operating Manual

SEARCHING UNDERWATER

The CZ-21 is waterproof to 250 feet, and it operates the same
underwater as on land. Some differences in search technique
should be noted.
1. Tune your CZ-21 underwater on the bottom as
2. Keep the search coil as far away from you and your
3. Keep the coil parallel and as close to the bottom as
4. Recheck your ground balance every 5 to 10
5. Remember, observe all the rules of safe diving.
6. Keep the search coil cable wound snugly around
7. Divers should make sure the drain holes in the
8. Divers should also keep the search coil at least 2
Figure 13. Move slowly, keeping
the search coil away from your
dive gear and as close to the
bottom as possible
instructed on page 6. Many divers prefer to use the
Autotune mode, in which case you may want to run
your threshold tone slightly higher than you would on
land. If you're wearing a hood, you'll probably have
to turn the volume control to maximum.
dive gear as possible. Sweep the search coil back
and forth in a wide semicircle in front of you to cover
the bottom in a methodical manner.
possible. Overlap your sweeps at least 50 percent.
minutes.
the stem when diving around coral or jagged rocks
to keep it from snagging.
headset are unobstructed. Better yet, wait until
you're on the bottom before putting your headset
on, and take it off before surfacing.
feet away from their bodies. Metal gear (weights,
gauges, tanks, etc.) will be detected by the CZ-21
if held too close.
21