Related Manuals for Fisher CZ-7a PRO Quicksilver
Summary of Contents for Fisher CZ-7a PRO Quicksilver
- Page 1 CZ-7a PRO Quicksilver Deep Search, Body Mount, Target I.D. Metal Detector Operating Manual F I S H E R R E S E A R C H L A B O R A T O R Y...
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Page 2: Table Of Contents
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 .................. -
Page 3: About Your Detector
ABOUT YOUR DETECTOR Your CZ-7a 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... - Page 4 For example, in an area heavily infested with nails and foil, you can set the CZ-7a Pro to ignore iron and foil and still dig nickels, other coins and all gold rings falling into the nickel and pull-tab categories.
- Page 5 13. Faint-Target Audio Boost: The lower range of the volume control of the CZ-7a 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.
- Page 6 23. Last-Setting Turn-On Memory: When you turn your CZ-7a 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!).
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Page 7: Setting Up
SETTING UP Your Fisher CZ-7a 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-7a Pro requires little assembly. - Page 8 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-7a Pro is balanced for comfortable searching in a tight semicircle around the front of the operator.
- Page 9 SETTING UP 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.
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Page 10: Body Mounting
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. -
Page 11: Turn-On-And-Go "Preset" Operation
D. machines. Even so, we strongly recommend that you read this entire manual. You'll be able to tune your CZ-7a Pro to your specific needs and ground conditions. And if you have a good understanding of how to ground balance and why, you'll find more. - Page 12 TURN-ON-AND-GO ‘PRESET’ OPERATION optimum for the ground you're searching, and that's why your sensitivity is set relatively low-to minimize false signals caused by ground mineralization. 7. Travel slowly, overlap your sweeps and keep the search coil moving. Remember, you're in a "motion"...
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Page 13: Control Panel
Note that the touch pads are slightly raised so that you can actually feel them. When you press these custom touch pads you can feel and hear a definite "click (so you know the switch has been activated). The CZ-7a Pro control panel features a manual, analog... - Page 14 SENS 8 using the Arrow touch pads. PRESET: When this pad is pressed and held momentarily, the CZ-7a Pro defaults to the factory preset control settings: Factory preset control settings on LCD when PRESET pad has...
- Page 15 CONTROL PANEL When searching in the PRESET VOL = 6 mode, you can set the NORM/SALT - NORM GROUND BALANCE knob to AUTO/I.D. = I.D. the red 5 or you can adjust it in SENS = 4 accordance with the ground Notch Discrimination = balancing procedure.
- Page 16 CONTROL PANEL the I.D. and SEARCH/PINPOINT modes. LEFT-RIGHT ARROWS: These Arrow touch pads are used in conjunction with the VOL, SENS and NOTCH functions. Adjustments are made by first pressing a function pad, and then pressing the appropriate Arrow pad, which moves the cursor left or right one space across the LCD.
- Page 17 The approximate depth in inches is indicated by the position of the markers over the numbers. When pressed and held, the SEARCH/PINPOINT pad puts the CZ-7a Pro into a "no- motion" mode for easy pinpointing (the search coil doesn't...
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Page 18: Turn-On Procedure
Note that small, deep targets now respond with the same loud zap as large, shallow targets. To defeat the faint- target, audio boost feature, adjust the CZ-7a Pro volume to 4 or lower. -
Page 19: Ground Balancing
The audio target response of the CZ-7a Pro is loud, sharp and abrupt. Be sure to set the VOL touch pad to 0 before turning on your CZ-7a Pro while wearing the headphones. -
Page 20: Pushbutton
"Pushbutton" Ground Balance Method This will probably be your method of choice unless you have body mounted your CZ-7a Pro or you are in highly mineralized ground. It's fast, easy and accurate. You can use this method in either the Autotune or Target LD. mode. -
Page 21: Bobbing
"bobbing" method can be more accurate than the "pushbutton" method described on the opposite page. However, it takes a little more practice to get it right. The "bobbing" method is accomplished while your CZ-7a Pro is in the Autotune mode. - Page 22 4. If the hum remains the same or changes only slightly, your CZ-7a Pro is properly ground balanced and you are ready to begin your search. 5. If the tone fades as you lower the coil,...
- Page 23 GROUND BALANCING in small increments until there is little or no change in the threshold hum as you bob the search coil. 7. With a little practice, you should be able to ground balance quickly by "bobbing" the search coil up and down in a continuous movement as you adjust the GROUND BALANCE control with your thumb.
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Page 24: Search Modes
SEARCH MODES Your CZ-7a Pro has two search modes: Target I.D. and Autotune. Both search modes are "motion" modes, meaning the search coil must be moving to detect a target. Autotune Search Mode Press the AUTO/I.D. pad to place the LCD marker over AUTO. -
Page 25: Target-I.d
`threshold" hum at maximum sensitivity but not of settings of 8 and lower. Target I.D. Search Mode When the AUTO/I.D. control is set to I.D., the CZ-7a Pro has the ability to identify many types of small targets, and depending on the NOTCH discrimination settings, reject or ignore all of them, most of them, or any combination of them. - Page 26 8. Note also the different audio responses from the CZ-7a Pro: an iron target will give you a low tone, tabs and foil a medium tone and coins a high tone. Take a look at the Audio Response chart on the next page.
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Page 27: Audio Response Chart
In addition to visual target identification, the CZ-7a Pro has 3-tone, audio target ID. A low tone is for iron, a medium tone Is for pull tabs and foil and a high tone is for coins. - Page 28 I.D. as a nickel. However, most tabs and most of the targets on the CZ-7a Pro LCD will be identified accurately. 12. Continue to increase the number of your target categories by using the NOTCH pad in conjunction with the Arrow pads.
- Page 29 15. Now switch the AUTO /ID. control to AUTO. Note the completely different kind of response. Your CZ-7a Pro is now in a super-hot, wide scan, all-metals mode with no tone or meter iidentification; just a solid, smooth response over...
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Page 30: Searching
SEARCHING Good search techniques are every bit as important as having a good detector. 1. Make sure your CZ-7a Pro is properly ground balanced and the proper mode is selected: SALT for wet ocean beaches and NORM for just about every other situation. - Page 31 8. Search in a methodical manner. Pay close attention to where you’re going and where The conical search pattern of the CZ-7a Pro search coil means you’ll get better ground penetration and coverage by overlapping your sweeps.
- Page 32 Unlike other metal detectors, the discrimination settings have little if any effect on the depth capability of the CZ-7a Pro. Note, however, that the all-metal Autotune mode has a wider search pattern and may detect a little deeper. Depth is also determined by the size, shape and conductivity of the target as well as the sensitivity setting of the CZ-7a Pro.
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Page 33: Pinpointing/Depth Reading
Target location is quick and easy using the SEARCH/ PINPOINT touch pad. And when you pinpoint your target, your CZ-7a Pro will give you an approximate (usually within an inch or so) depth reading for coin-sized targets. It doesn't matter which mode you're in (ID. -
Page 34: Target Identification
3) There are many good targets that are not classified by the CZ-7a Pro. As mentioned earlier, gold rings, for example, may fall into just about any category except iron. Many foreign coins,... - Page 35 4) Your CZ-7a Pro will correctly identify most small targets most of the time, but it can be foooed. Large targets, uneven ground mineraiization, a...
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Page 36: Target Recovery
Generally speaking, beachcombers do little if any damage to the environment while recovering targets. However, if you plan to use your CZ-7a Pro on lawns or in parks, your target recovery methods can be very important. Two of the most successful methods are illustrated in a separate booklet enclosed with your CZ-7a Pro. -
Page 37: False Signals
Or a small deep coin, especially in mineralized soil, may read "IRON." The more sensitive the metal detector, the harder it is NOT to have false signals. Your CZ-7a Pro is an extremely sensitive machine, so you're bound to encounter false signals. Here are... - Page 38 2. Deep Targets: Deep targets. just barely within the range of the CZ-7a Pro, may be misidentified. For example, a deep coin may I.D. as iron or a deep piece of iron may I.D. as a coin. There's not much...
- Page 39 FALSE SIGNALS 6. Wet Sand: Your CZ-7a Pro should be able to handle most wet sand easily unless it's black (see Black Sand #5). Chances are, if you're having trouble in wet sand, you've forgotten to switch your NORM/ SALT touch pad to SALT and re-ground balance when you moved from dry to wet sand.
- Page 40 FALSE SIGNALS 10. Other Targets that Aren't There: Good, lock-on, repeatable signals but nothing there. a) Shallow coins (at or near the surface) or coins on edge will give a double beep, one on either side of the coin, just like a nail. Like the nail, the coin on edge will give a single beep directly over the target if you sweep at right angles to your original direction.
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Page 41: Operating Tips
If you're going to be hunting exclusively in this type of ground, you may be better off equipping your CZ-7a Pro with the smaller, 5-inch coil. It will zero in on good targets closer to trash. 3. Recheck your ground balance occasionally. - Page 42 OPERATING TIPS categories. If you're in an area with very little trash, you may not want to notch out anything other than iron. On the other hand, if you're looking for coins in an extremely trashy area, you may even want to notch out zinc pennies and nickels and concentrate on the copper, clad and silver coins.
- Page 43 You may be over a buried pipe or some other large deep target. 12. When in doubt, dig. If your CZ-7a Pro can't quite decide whether a target is good or bad, dig it up.
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Page 44: Battery Replacement
Make sure the batteries are positioned properly as indicated by the "+" polarity markings inside the battery compartments. If either or both of the batteries are installed incorrectly, the CZ-7a Pro will simply not turn on. The detector will not be damaged. -
Page 45: Maintenance
MAINTENANCE Your CZ-7a Pro doesn't require a lot of care. It's built with high- quality materials and it's splashproof and dustproof. But there are a few things you should do to keep it in peak operating condition. 1. If you're not going to be using it for a while, take the batteries out. -
Page 46: Specifications
SPECIFICATIONS Operating Modes 1. Autotune ..... VLF-Motion. all-metal with threshold tone 2. Target I.D....VLF-Stow Motion. Silent-Search Discrimination 3. Pinpoint Depth Reading ......VLF. All-Metal. No Motion Frequency ........Dual. VLF Search 5 kHz and 15 kHz Manual Ground Adjust ............... Yes Search Coil Type .......... -
Page 47: Audio Output
5. VCO: Voltage Controlled Oscillator, Volume and frequency increase over target for pinpoint accuracy. 6. The CZ-7a Pro is a "motion detector in the Autotune and Target LD. Modes. The search coil must be moving- at least slightly, to detect a target. - Page 48 R E P U T A T I O N Fisher produced the first patented metal detector in 1931. For over 70 years, the Fisher logo has been a mark of excellence. L I F E T I M E W A R R A N T Y...