Fisher Cz 6a Manual
I was out hunting an old park in San Francisco this weekend with my trusty old Fisher CZ6. I purchased this machine back in 1993. I invited a friend along and he had a top of the line digital machine. While we were hunting I located a deep coin signal with my CZ6 and called my friend over to check it with his machine.
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The depth on the target was 6 to 7 inches. He sweeped his coil over the spot and got no response from his detector. He then did some tweeks to his machine and still got no response. I proceded to dig target and came up with a rossie silver dime! Whats going on here?
My friend tried everything to get a hit on that target, changing ground balance, sensitivity, ect. I prefer not to mention the brand. I don't want to start a detector war. He did have a doublle D coil, the standard size that comes with his detector.
The mineralized ground conditions in the San Francisco parks can be a challenge. When I ground ballance my CZ6 my knob is turned all the way up to 1 or 2. Could this 'hot' ground be troublesome to some machines? Another thing I've noticed is the stability of the older analog machines over the digital machines. My needle on my old CZ will lock on a good target, where as the newer digital machines will sometimes bounce numbers on the display screen. What causes this inconsistency with target I.D.
On the digital machines? Two weekends ago I locked on a good target with my CZ that was a solid 8 inches deep. The needle never fluctuated, it locked right on the target. To my surprize out pops a 1908-S indian head penny. The depth on the target was 6 to 7 inches.
He sweeped his coil over the spot and got no response from his detector. He then did some tweeks to his machine and still got no response. I proceded to dig target and came up with a rossie silver dime! Whats going on here? Perhaps he left his detector in the back seat of his car once too often on bright sunny days.
A 6' to 7' deep dime certainly isn't outside normal range. Did he ground balance properly? Trust an 'automatic' g.b.
Clean inside the coil cover lately? There are a lot of variables. The main reason you see a steady response on a pure analog meter an variable response on digital has to do the how the two different technologies work. But in simple terms all analog meters ar damped - think of it like a shock on your car it smooths out all the bumps and gives a smoother signal.
Digital is like having no shocks so you feel (or see) all the bumps (or changes in VDI). To some people this is ok because it lets them see more clearly what the detector is seeing. For instance if there is iron near by you would hi and low numbers hi from coin and low for iron.
The truth is even digital signals are dampened. Sampling and averaging are both used to steady responses to a usable level just most people that buy digital want a very responsive machine so the dampening is minor compared to an analog meter.
Now one other fact some older machines with analog meters also had variable audio which was not dampened this like the best of both worlds since the audio was very responsive to changes while the meter helped average all the noise to one probable indication. Hope that helps Bryanna. I prefer not to mention the brand. I don't want to start a detector war. He did have a doublle D coil, the standard size that comes with his detector. The mineralized ground conditions in the San Francisco parks can be a challenge.
When I ground ballance my CZ6 my knob is turned all the way up to 1 or 2. Could this 'hot' ground be troublesome to some machines? Another thing I've noticed is the stability of the older analog machines over the digital machines.
My needle on my old CZ will lock on a good target, where as the newer digital machines will sometimes bounce numbers on the display screen. What causes this inconsistency with target I.D. On the digital machines? Two weekends ago I locked on a good target with my CZ that was a solid 8 inches deep. The needle never fluctuated, it locked right on the target. To my surprize out pops a 1908-S indian head penny.
We're talking about one particular target at a depth of something like 6-7 inches in ground with moderate mineralization and who knows what else what's down there that you can't see with your eye. Furthermore, we don't know how the machines were set up. Discriminators lose stuff and sometimes it's the stuff you were hoping to find, it's how discriminators are. In all metals mode, ground and/or targets off to the side can hide a target you're looking for. The CZ and the T2 are both very good machines, but with very different response characteristics. There will always be targets one finds that the other doesn't.
. 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.
CONTENTS About Your Detector. 1 Setting Up.pg.
5 Body Mounting.pg. 8 Turn-On-And-Go “Preset” Operation.pg. 9 Control Panel. 11 Turn-On Procedure.pg.
16 Ground Balancing.pg. 17 Pushbutton.pg. 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. Easy to Use: Just set the ground-balance knob on the red 5, push the 'PRESET' touch pad and. 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. 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. 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!). 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.
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. 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. 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. Reconnect the cable to the control housing. 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. 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. 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. Travel slowly, overlap your sweeps and keep the search coil moving. Remember, you're in a 'motion'. 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. 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. CONTROL PANEL When searching in the PRESET VOL = 6 mode, you can set the NORM/SALT - NORM GROUND BALANCE knob to AUTO/I.D. The red 5 or you can adjust it in SENS = 4 accordance with the ground Notch Discrimination = balancing procedure. 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. 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. 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.
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.
'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. '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.
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. If the tone fades as you lower the coil. GROUND BALANCING in small increments until there is little or no change in the threshold hum as you bob the search coil. 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.
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. `threshold' hum at maximum sensitivity but not of settings of 8 and lower. 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. 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. 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. However, most tabs and most of the targets on the CZ-7a Pro LCD will be identified accurately. Continue to increase the number of your target categories by using the NOTCH pad in conjunction with the Arrow pads. 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. SEARCHING Good search techniques are every bit as important as having a good detector. 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. 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. 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. 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. 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. 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. 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. 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. 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. There's not much. 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. 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. 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. Recheck your ground balance occasionally. 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.
You may be over a buried pipe or some other large deep target. When in doubt, dig. If your CZ-7a Pro can't quite decide whether a target is good or bad, dig it up. 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.
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. If you're not going to be using it for a while, take the batteries out. SPECIFICATIONS Operating Modes 1.
All-metal with threshold tone 2. Target I.D.VLF-Stow Motion. Silent-Search Discrimination 3. Pinpoint Depth Reading.VLF.
No Motion Frequency.Dual. VLF Search 5 kHz and 15 kHz Manual Ground Adjust. Yes Search Coil Type.
Fisher Cz-6a Quicksilver Metal Detector
VCO: Voltage Controlled Oscillator, Volume and frequency increase over target for pinpoint accuracy. The CZ-7a Pro is a 'motion detector in the Autotune and Target LD.
Fisher Cz 6a Detecting Video
The search coil must be moving- at least slightly, to detect a target. 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.