Related Manuals for Fisher Labs CZ-21 QuickSilver
Summary of Contents for Fisher Labs CZ-21 QuickSilver
- Page 1 CZ-21 QuickSilver Deep Search, Land and Underwater, Target I.D. Metal Detector Operating Manual F I S H E R R E S E A R C H L A B S...
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Page 2: Table Of Contents
CONTENTS About Your Detector ..............pg. 1 Condensed Operating Instructions ........pg. 3 Headphones ................pg. 4 Assembly ................pg. 5 Setting Up ................pg. 6 For Land or Shallow Water ..........pg. 6 For Diving ................pg. 7 For Hipmounting ..............pg. 8 Control Panel ................pg. 10 Turn on Procedure ..............pg. -
Page 3: About Your Detector
ABOUT YOUR DETECTOR Your CZ-21 QuickSilver is an all-purpose metal detector engineered for land, beach, salt and fresh-water treasure hunters. Here are some important features: 1. Leakproof: Submersible to 250 feet. 2. 3-Tone Target I.D.: A low tone for iron, a mid-tone for pull tabs, foil and most gold rings, and a high tone for U.S. - Page 4 ABOUT YOUR DETECTOR 10. Search Coils: The CZ-21 comes with the 8” coil as standard equipment, but can also be custom ordered with the 10” coil. All coils are permanently attached. 11. Balanced, Comfortable and Hipmountable: Cushioned arm rest, soft foam grip and a control housing that slips off the handle and onto your belt.
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Page 5: Condensed Operating Instructions
CONDENSED OPERATING INSTRUCTIONS Factory Pre-Set “Turn-On-and-Go” Marks Your CZ-21 QuickSilver is simple to operate. Even so, we strongly recommend that you read this entire manual. You’ll be able to tune your CZ-21 to your specific needs and conditions. Figure 1. Factory pre-set turn-on-and-go marks (circled in red or blue on your CZ-21 control panel) can get you up and running immediately. -
Page 6: Headphones
CONDENSED OPERATING INSTRUCTIONS 2. Adjust the volume control for a comfortable volume when the coil is passed over a large, shallow target. 3. Travel slowly, overlap your sweeps and keep the search coil moving. Remember, you’re in a “motion” search mode, and the coil must be in motion to detect a target. 4. When you get a good, repeatable signal, pinpoint the target. Using Headphones Using headphones (not supplied) improves battery life, and prevents the sounds from annoying bystanders. -
Page 7: Assembly
ASSEMBLY Your Fisher CZ-21 requires little assembly. Handle it carefully, care for it regularly, and it will give you years of dependable service. 1. Remove the headphone, handle and search coil assemblies from the box. Be careful not to put any strain on the cable connections. 2. Adjust the lower stem to the approximate length you will be using: extended for stand-up use or as short as possible for diving. To extend the lower stem, push in the spring lock, pull out the lower stem and let the spring lock snap into another hole. 3. Unwind just enough cable to attach the search coil to the lower stem. 4. Remove the bolt and wing nut from the search coil. Line up the hole in the lower stem between the two holes in the search coil “ears.” Attach the coil to the stem with the bolt and wing nut and finger tighten. 5. -
Page 8: Setting Up
ASSEMBLY Adjustable Arm Rest Upper Stem Screw Hole Figure 3. Screw SETTING UP Figure 4. When searching on land or in shallow water, keep your arm straight and your search coil no more than 2 inches above the ground. SETTING UP FOR LAND OR SHALLOW WATER Put the headphones around your neck to keep them out of the way while making the following adjustments: 1. Adjust the stem length and coil angle so the search coil rests flat on the ground about 6 inches in front and slightly to the right of your foot (to the left of your left foot if you’re left handed). -
Page 9: For Diving
SETTING UP 3. You should now be able to move into your “search” position by leaning slightly forward and raising the search coil no more than 2 inches above the ground. Your arm should still be straight, and the coil should be parallel to the ground, about 12 inches in front of your foot. The coil angle may have to be slightly readjusted at this point. SETTING UP FOR DIVING Unlike most VLF metal detectors, the CZ-21 works well in salt water. This capability, along with its deep-seeking sensitivity, makes it ideal for underwater treasure hunting and wreck diving. The CZ-21 is waterproof to a depth of 250 feet. Remember, always practice safe diving methods. When diving with your CZ-21, use the shortest stem length possible, with the extra cable wrapped tightly around the stem, as closely as possible to the control housing. -
Page 10: For Hipmounting
SETTING UP Caution: Hipmounting the CZ-21 control housing is not recommended for underwater use. The search coil cable may become entangled with a submerged object, making it difficult for the diver to resurface quickly in case of emergency. SETTING UP FOR HIPMOUNTING For nearly-effortless treasure hunting, the control housing is easily removed from the handle and attached to the belt clip (included). - Page 11 SETTING UP Hold unit firmly and separate handle, being careful not to drop the control unit and damage it. Place unit battery side down with battery cover on table top, or a flat stable surface and grasp the unit firmly in one hand and the handle grip firmly in the other. “Hipmounting” the CZ-21 in this manner takes about half the weight off the handle and allows the land or shallow-water treasure hunter to search much longer without arm fatigue.
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Page 12: Control Panel
CONTROL PANEL 1. VOLUME/OFF: Power on-off and volume control. Volume is gradually increased from 1-5 settings. From 5-10, loud-target response is held constant while faint targets continue to get louder. 2. DISC: In the 0-6 positions, the CZ-21 is in the target I.D. mode, which is a silent, no-threshold, motion-discrimination mode of operation with the ability to identify and then ignore (“reject”) or accept many kinds of small metal... -
Page 13: Turn On Procedure
2-second wait between presses. GROUND BALANCING When your CZ-21 QuickSilver is properly “ground balanced,” it will have only a minimal response to ground mineralization. Precise adjustment of the GROUND control is critical for optimum performance. The higher the degree of ground mineralization or the higher the sensitivity setting, the more critical it is to have your machine properly ground balanced. -
Page 14: Touch Pad
GROUND BALANCING QUICK G.B. METHOD This will probably be your method of choice in all but the most difficult of ground conditions. It’s fast, easy and accurate. You can use this method in either the Autotune or Target-I.D. mode. 1. With GROUND control at “10” hold your search coil 6 to 12 inches off the ground. -
Page 15: Bobbing
GROUND BALANCING BOBBING METHOD 1. Turn disc knob to “AUTOTUNE”, this puts you into Autotune mode. Set the “SENSITIVITY” control so that you just barely hear a threshold hum. Hold the search coil 6 to 12 inches over the ground and at least 3 feet away from any metal objects. - Page 16 GROUND BALANCING 4. With a little practice, you should be able to ground balance quickly by “bobbing” the coil up and down in a continuous movement as you adjust the GROUND control with your thumb. NOTES: 1. If you get an audio response as you first lower the coil with the GROUND control at 10, you’re probably over a piece of metal.
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Page 17: Search Modes
SEARCH MODES Your CZ-21 has two search modes: Target I.D. and Autotune. Both search modes are “motion” modes, meaning the search coil must be in motion to detect a target. Unlike other metal detectors, the discrimination level has little, if any, effect on the depth capability of the CZ-21. -
Page 18: Target I.d
SEARCH MODES TARGET I.D. MODE When the DISC control is set in the 0-6 positions, the CZ-21 has the ability to identify many types of small targets and, depending on the discrimination level, reject or ignore most of them. To better understand just how your CZ-21 responds to different targets, try the following: 1. - Page 19 SEARCH MODES 8. Most silver rings will give a high tone. Most gold rings will fall into the pull tab/foil mid-tone category. This is due to the unavoidable fact that most gold rings are conductively similar to aluminum foil and pull tabs. Some are more closely identical to the U.S.
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Page 20: Searching On Land Or In Shallow Water
SEARCH MODES and rejected at “3.” 12. You may expect varying signals over different targets and at different levels of discrimination. Note that as you progressively increase the discrimination level, more and more targets are eliminated. 13. Now switch the DISC control to the AUTOTUNE position and note the completely different kind of response. - Page 21 SEARCHING ON LAND OR SHALLOW WATER and/or size of the target. Recommended starting point: VOLUME = “5,” then adjust the volume control for comfort over loud targets. 5. Once the controls are properly set, begin searching by walking slowly and sweeping the search coil in a tight semicircle as shown in Figure 9.
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Page 22: Search Mode
SEARCHING ON LAND OR SHALLOW WATER Impact of sweep speed, ground mineralization, and search mode 1. Minimum depth a. Very slow or very fast sweep speed b. Highly mineralized soil c. Target I.D. search mode 2. Average depth a. Moderate sweep speed b. -
Page 23: Searching Underwater
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 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. -
Page 24: Pinpointing
PINPOINTING Target location is quick and easy using the touch pad pinpoint mode. The coil does not have to be moving to get a response in this mode. 1. Whether in Autotune or Target I.D. mode, once the presence of a target is indicated by the “beep- beep”... -
Page 25: Target Identification
PINPOINTING TARGET IDENTIFICATION Target I.D. with the CZ-21 is quick and simple. Just keep in mind these two rules: 1) You must be in the Target I.D. mode. 2) The center of the search coil must pass directly over the target. - Page 26 TARGET IDENTIFICATION coin. 5. The DISC control provides increments of rejection and identification within the mid- and high-tone target classifications. Take a look at the target I.D. decal on your control housing to see what gets rejected at which DISC point. 6.
- Page 27 TARGET IDENTIFICATION may fall into just about any category, the smaller nuggets falling on the lower half of the scale. So if you’re not just looking for U.S. coins, you should test some sample targets to determine what level of discrimination you want to work at and what targets you want to dig.
- Page 28 TARGET IDENTIFICATION a feel for which target classifications will be the most productive. 13. Look for repeatable signals and don’t waste time on disappearing or one-way signals. If you hear a good beep but can’t repeat it when you go back over the target area, or if it beeps in only one sweep direction, it’s probably a piece of trash - something below your discrimination setting.
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Page 29: Target Recovery
TARGET RECOVERY Once you’ve identified and pinpointed a target, your objective is to recover it quickly and neatly, leaving virtually no trace of your excavation. There are almost as many ways to do this as there are treasure hunters. Whatever works for you is good enough as long as you don’t break any laws, leave uncovered holes or damage the environment either on land or underwater. -
Page 30: Recovery Tools
RECOVERY TOOLS 1. Sand scoops designed especially for beachcombers and shallow-water treasure hunters are available at metal detector outlets. 2. Divers use a variety of recovery tools, depending on the condition of the sea bed or lake bottom. A sturdy dive knife will suffice in packed mud or small rocks. -
Page 31: False Signals
FALSE SIGNALS A “false signal” occurs when a target is incorrectly identified. For example , a small, broken-off piece of pull tab may be identified as a nickel. 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. - Page 32 FALSE SIGNALS I.D. location, your target is probably a piece of iron. Reducing your sensitivity level, taking shorter, slower sweeps, or increasing the discrimination level may reduce the number of false signals caused by trash. 2. Deep Targets: Deep targets, just barely within the range of the CZ-21, may be misidentified.
- Page 33 FALSE SIGNALS 6. Wet Salt Water Sand: Your CZ-21 should be able to handle most wet sand easily unless it’s black. See Black Sand above. You should able to reduce the number of false signals caused by salt water by lowering your sensitivity and making sure you are ground balanced properly.
- Page 34 FALSE SIGNALS to your original direction, you’ll receive a single beep directly over the target. 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 position.
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Page 35: Battery Replacement
BATTERY REPLACEMENT The CZ-21 is powered by four, 9-volt transistor batteries located in the rear section of the control housing. The batteries are sealed off from the electronics so that accidental water leakage into the battery compartment will not damage the circuitry. To replace the batteries: 1. - Page 36 BATTERY REPLACEMENT VERY IMPORTANT Follow these instructions carefully to avoid getting water in the battery compartment. 1. Tuck in the wires. Do not pinch them in the seal when closing. 2. The battery door will capture the battery holder and self-center it as you install the door. 3. Tighten the knobs SECURELY. a. Use a coin. b. Tighten by hand FIRMLY. Use maximum MANUAL force. c. Do Not use a tool. d. Do Not use a screwdriver. Torque Specification is 8 in-pounds. 4. If you have removed the gasket, see page 36 for installation instructions. An improperly installed gasket = a water leak! 5. Submerge the detector in water for 1/2 hour. a.
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Page 37: Maintenance
MAINTENANCE Your CZ-21 doesn’t require a lot of care. It’s built with high-quality materials, and it’s waterproof to a depth of 250 feet. But there are a few things you should do to keep it in peak operating condition. Handling 1. -
Page 38: Battery Door Gasket: Orientation
BATTERY DOOR GASKET: ORIENTATION CROSS SECTION CASE BATTERY DOOR A = Small side to case B = Large side to battery door Battery door gasket installation Figure 16. The rubber gasket, which fits into the battery door, must be installed with the larger protrusion (B), toward the battery door. If you remove the gasket for cleaning, re-install correctly. -
Page 39: Where To Use Your Metal Detector In The U.s
Where To Use Your Metal Detector In The U.S. National Forest and Federal Lands—Metal detecting is allowed only by special permit acquired from the federal government. Each area has a district office. Corps of Engineers, Lakes, Shorelines and Lands—Permission has been granted only on predisturbed sites, such as beaches and attached swimming areas. -
Page 40: Specifications
SPECIFICATIONS Length ..... Extended ............ 50” ........Collapsed ........... 30” Weight 8” Coil 10.5” Coil 5” Complete (with headset)....5 lb...11 oz. 6 lb...1 oz. 5.4 lb. Handle and Search Coil ....2 lb...6.9 oz. 2 lb...12.9 oz. 2.1 lb. Control Housing ............... 2.8 lbs. Frequency .... - Page 41 SPECIFICATIONS Batteries ....Separately Sealed Compartment ... Yes ........Type .......... (4) 9V Alkaline ........Life Alkaline ........35-55 hrs........Nicads 10-20 hrs. Operating Temperature ..32° - 110° F Faint Target Audio Boost ..Yes Manual Threshold Tuning ..In Autotune Mode Target I.D.
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Page 42: Treasure Hunters' Code Of Ethics
TREASURE HUNTERS’ CODE OF ETHICS LET’S PRESERVE OUR TREASURED SPORT! Laws governing the use of metal detectors are becoming more and more common. In many countries, the use of metal detectors is illegal or severely restricted. Don’t let this happen in your area. - Page 43 NOTE TO FOREIGN COUNTRY CUSTOMERS This warranty may vary in other countries, check with your distributor for details. Factory warranty follows the channel of distribution. Warranty does not cover shipping costs. Liability under this Warranty is limited to replacing or repairing, at our option, the metal detector returned, shipping cost prepaid, to Fisher Labs. Shipping cost to Fisher Labs is the responsibility of the consumer. To return your detector for service, please first contact Fisher Labs for a Return Authorization (RA) Number. Reference the RA number on your package and return the detector within 15 days of calling to: Fisher Research Labs, Inc. 1465-H Henry Brennan Dr. El Paso, TX 79936 Phone: 915-225-0333 ext.118 Warranty coverage does not include the cost of transporting the detector back to an owner who is located outside of the United States of America.
- Page 44 ATTENTION: Damage do to neglect or accidental damage is not warrantable IMPACT WARNING: Impact to the front knobs, the front edge, or the case will cause the front plate to fracture, resulting in leakage. Such damage is not warrantable. CABLE STRESS: If you hip-mount the CZ-21, leave slack in the cable so as not to pull cable taunt at end of sweep. Damage to coil cable at housing connection is not warrantable if a result of repetitive, excessive stress. Copyright© 2009 by Fisher Research Labs, Inc. All rights reserved, including the right to reproduce this book, or parts thereof, in any form. Published by Fisher Research Labs, Inc. Fisher® is a registered trademark of Fisher Research Labs, Inc. www.fisherlab.com 1465-H Henry Brennan Dr., El Paso, TX 79936 • (915) 225-0333 MCZ21 101909...