Fisher CZ-CZ-70 PRO Quicksilver User manual

CZ-70 PRO Quicksilver
Operating Manual
Deep Search, Body Mount, Target I.D. Metal Detector
FISHER RESEARCH LABORATORY
NEW 4th
TONE I.D.
SYSTEM

CONTENTS
About Your Detector ............................................................. pg. 1
Setting Up................................................................................ pg. 5
Body Mounting ...................................................................... pg. 8
Turn-On-And-Go “Preset” Operation .................................. pg. 9
Control Panel ......................................................................... pg. 11
Turn-On Procedure ................................................................ pg. 16
Ground Balancing................................................................. pg. 17
Pushbutton .............................................................................. pg. 18
Bobbing .................................................................................. pg. 19
Search Modes........................................................................ pg. 22
Autotune ................................................................................. pg. 22
Target-I.D. ............................................................................... pg. 23
Audio Response Chart .......................................................... pg. 25
Searching ............................................................................... pg. 28
Pinpointing/Depth Reading ................................................. pg. 31
Target Identification .............................................................. pg. 32
Target Recovery .................................................................... pg. 34
Recovery Tools ...................................................................... pg. 34
False Signals ........................................................................... pg. 35
Operating Tips ........................................................................ pg. 39
Battery Replacement ............................................................ pg. 42
Maintenance ......................................................................... pg. 43
Specifications ........................................................................ pg. 44

1
ABOUT YOUR DETECTOR
Your CZ-70 Pro is an extremely advanced and sophisticated
instrument. It combines deep seeking, microprocessor, target-
I.D. technology with user friendly controls and a very rugged
and unique body-mount control housing.
1. Easy to Use: Just set the ground-balance knob
on the red 5, push the "PRESET' touch pad and
you're ready to start searching in a "coins only"
mode. For maximum performance, you can easily
adjust the CZ-70 Pro for your own specific
situation. Ground balancing and fine tuning with
the touch pads is quick and simple.
2. Tactile Feedback Touch-Pad Controls: Raised
touch pads give a positive click when pressed.
Unlike many touch pads, you know when you're
touching them-without looking; and you know
when you've entered a command.
3. Liquid Crystal Display with Back-Light: A large
liquid-crystal display gives you quick and
accurate information about the target, operating
mode and battery condition. Use this function
sparingly as it will significantly reduce battery life.
4. Notch Discrimination: You can selectively
ignore or accept any combination of seven
small-target classifications: iron, round pull tabs,
old coins/relics, foil, zinc pennies, nickels and a
category including copper pennies and other
U.S. clad and silver coins.
5. Visual Target ID.: A microprocessor-controlled
display registers one of seven small-target
categories. When the powerful, dual-frequency
CZ-70 Pro classification system makes an
identification, a marker appears on the LCD
under the appropriate target-category icon. If
identification is difficult due to irregular size,
conductivity or depth, the CZ-70 Pro will alert you
by jumping back and forth between the two
most likely categories.

2
6. 4-Tone Target l.D.: A low tone for iron; a mid-
tone for pull tabs, foil and most gold rings; and a
high tone for U.S. coins and silver rings and a new
4th tone for old coinsand relics.
7. Target Separation: It's a sad-but-true fact that
most gold rings, pull tabs, foil and nickels fall into
the same conductivity range, meaning that a
detector user has to dig a lot of trash to find rings
and nickels. But the CZ-70 Pro separates the
nickels from the trash and even separates the
tabs from the foil so the ring hunter can
determine just how much trash he's willing to put
up with. For example, in an area heavily infested
with nails and foil, you can set the CZ-70 Pro to
ignore iron and foil and still dig nickels, other
coins and all gold rings falling into the nickel and
pull-tab categories.
8. Silent-Search, Slow-Motion Target LD. Mode:
No threshold tone; no chatter. The audio and
visual target ID. circuits ignore everything you've
"notched" out. For example, if you've notched
out iron targets, you'll never hear the low "iron"
tone, and you'll never see a marker under the
iron icon.
9. All-Metal Autotune Mode: Hot, smooth
running, wide-scan search mode for all-metal
treasure hunting and prospecting.
10. Pushbutton VCO Pinpointing and Depth
Reading: Push the PINPOINT touch pad and the
CZ-70 Pro operating mode changes to no motion.
The search coil doesn't have to be moving to
locate a target. The signal tone increases in pitch
and volume as the center of the coil approaches
the target. Target depth is displayed in inches.
11. Touch-Pad Ground Balancing: Just press the
pinpoint touch pad and lower the coil to the
ground. Then set the ground control just below
the audio tone and you are precisely tuned for
on-site conditions.
ABOUT YOUR DETECTOR

3
12. Depth: Patented Fourier Domain Signal
Analysis. Two deep-seeking, ground -
compensating VLF signals (one at 5 kHz and one
at 15 kHz) provide twice as much target
information for accurate analysis and
identification.
13. Faint-Target Audio Boost: The lower range of
the volume control of the CZ-70 Pro is like any
other that you've used. But as you increase the
volume above mid range, strong target sounds
remain at a fixed volume while faint, deep-target
sounds continue to get louder.
14. Big-Target Alert: Ordinary detector circuits
overload on large, shallow targets, identifying
them as good targets. But not the CZ-70 Pro. A
distinctive bell tone immediately warns you that
the target signal is too strong to identify.
15. Wet Sand Operation: Just press the NORM/
SALT touch pad, reset the ground control and you
can search wet salt sand like nobody's business.
In fact, you can submerge the coil for shallow
saltwater beachcombing.
16. Splashproof, Rainproof, Dustproof: The control
housing is sealed and the battery compartments
have their own gaskets. The search coil is
submersible. The cable connector and
headphone jack (when the phone plug is
inserted) are splashproof. The CZ-70 Pro is not
submersible, but rain and dust are no problem,
and the speaker is splashproof.
17. Drop-In Batteries: No wires, no clip, no hassle.
Just drop in two 9volt transistor batteries.
18. Constant Battery Monitor: You always know
the condition of your CZ-70 Pro batteries. Three
bars on the Liquid Crystal isplay indicate fully
charged batteries. Two bars means they're about
half gone, and one bar means it's time to replace
them.
ABOUT YOUR DETECTOR

4
19. Adjustable, Double-Locking Lower Stem:
Fiber glass reinforced nylon stem with a steel
spring clip to keep it in perfect alignment and a
positive grip injection-molded ABS lock nut.
20. Balanced and Comfortable: The universal
arm rest detector stand along with Fisher's "S"
handle design and pistol-grip mounted control
housing give the CZ 70 Pro superior balance and
maximum comfort.
21. Spider Coils: Your choice of an all-purpose, 8-
inch Spider coil or a deep-seeking 10 1/2-inch
Spider coil. They're light, tough and have open
centers for accurate pinpointing. The hot, little 5-
inch coil is great for extremely trashy areas, tight
spots or highly mineralized ground.
22. Three-Piece Breakdown: The CZ-70 Pro
breaks down to fit into an optional carrying case
not much bigger than a briefcase and small
enough for most airline carry-on luggage.
23. Last-Setting Turn-On Memory: When you turn
your CZ-70 Pro on, it automatically sets the
Sensitivity, Volume, Notch and Mode exactly as
they were when you turned it off (even if the
batteries have been removed!). Note that no
battery drain is required to retain your last settings
in memory.
24. Body Mount or Handle Mount: Just slide the
control housing off the handle grip, snap on the
belt loop and put it on your belt. What's left is so
light it will feel like part of your arm.
Read this instruction manual thoroughly, practice often and
you're in for some exciting treasure hunting. Drop us a line if
you have any questions, comments or good finds to tell us
about. In the meantime. . .
Happy Hunting,
FISHER RESEARCH LABORATORY
ABOUT YOUR DETECTOR

5
SETTING UP
Your Fisher CZ-70 Pro QuickSilver is built to last for years.
However, it's a sophisticated electronic instrument containing
state-of-the-art components. Handle it carefully, care for it
regularly, and it will give you years of dependable service. The
CZ-70 Pro requires little assembly.
1. Unpack your CZ-70 Pro carefully and save the
carton: it may come in handy if you ever have to
return the instrument for service.
2. Slip the lower stem into the upper stem.
3. Adjust the stem length and coil angle so that
the search coil rests flat on the ground about 6 to
12 inches in front of and slightly to the right of
your right foot (to the left of your left foot for left
handers). Your arm should be straight and
relaxed, the grip held loosely (see drawing on
next page). The stem length is adjusted by
loosening the lower lock nut and allowing the
8-inch Spider
search coil
Liquid
crystal
display
Lower
lock nut
Center
stem section
Adjustable,
fiberglass
filled, nylon
lower stem
Upper
lock nut
Search
coil cable
Control
housing
Touch pads
Padded
Arm rest
Foam
hand grip
Nylon wing nut
(with
replaceable
Duro-Neoprene
bushings)
Upper stem

6
spring clip to snap into one of the holes in the
center stem. The coil angle is adjusted by
loosening the nylon wing nut on top of the
search coil.
NOTE: Remember, the longer the shaft, the more you'll have
to bend your elbow to keep the coil off the ground and the
sooner your arm will get tired. The CZ-70 Pro is balanced for
comfortable searching in a tight semicircle around the front
of the operator.
4. With the stem length properly adjusted, wrap
the search coil cable snugly around the lower
stem and the center section. Leave just enough
slack near the coil to allow it to be tilted
completely backward and forward.
NOTE: A loose cable near the search coil may cause false
signals, but don't wrap it so tightly that it pulls against the
housing or the coil.
SETTING UP
Adjust the stem length and coil angle so the coil rests flat
on the ground about 6 to 12 inches in front of your foot.
Move into your "search" position by leaning slightly and
raising the coil about 2 inches off the ground. This should
put the coil about 12 to 18 inches in front of your lead foot.

7
5. Reconnect the coil cable to the control
housing. Be careful not to cross thread it and
make sure it's snug, but hand tighten only.
6. With the shaft length and coil angle properly
adjusted, you should be able to move into your
search position by leaning forward very slightly
and raising angle so the coil rests flat on the
ground about 6 to 12 inches in front of your arm.
7. (when using optional headphones)
Plug the headphones into the HEADPHONES jack
on the control panel.
SETTING UP

BODY MOUNTING
1. Disconnect the cable from the control housing
and unwind all but the last 12 inches or so from
the stem. Secure the lower end of the cable with
a Velcro strap at least 12 inches up from the coil.
2. Remove the control housing from the pistol
grip by holding the grip with one hand and sliding
the housing toward you wilth the other hand.
3. Attach the belt loop to the control housing by
slipping it over the brass posts on the bottom of
the control housing and pulling it toward the
control panel to lock it in place.
4. Reconnect the cable to the control housing.
5. The control housing can then be mounted on
your belt or on the optional Fisher Chest Harness,
which is especially useful for shallow water
hunting.
It is especially important that the cable connector be
installed tightly to prevent false signals during body-mount
use. Tight, but never tightened with anything but your hands.
For belt mounting, left handers should wear the housing on their right hip and
right handers should wear it on their left hip.
8