Lie Detector Series

[Martta Borromeo]

TheModel 3003 is a durable, lightweight instrument designed for alpha, beta, gamma, or neutron radiation survey. It can support up to four external detectors, each with its own set of calibration and user parameters. The Model 3003i is a version that includes an internal GM or scintillation detector. The instrument features a large, easy-to-read LCD screen and audible alarms and is controlled using a simple seven-button interface. The unit body is made of high-impact plastic and splash resistant construction allows the instrument to be used outdoors.

In order to use the latest Lumic Calibration Software*, you may need to update the firmware on your instrument. (All new instruments will be compatible with the latest software version.) Use the table below to determine the firmware requirement for your instrument.

Conspec's CN Series fixed gas detector is your solution for toxic gas or oxygen detection. Intended for indoor or outdoor use, the CX Series is available with an analog 4-20mA output, dry relay contacts, & Modbus RTU over RS-485 communications.

The CN Series fixed gas detector supports over 35 sensor types giving it the capability to detect over 100 different gases. An optional remote sensor can be placed in potentially harmful areas while the transmitter can be monitored safely. Dry contact relays for 1st level alarm, 2nd level alarm, and fault can be used for alarming or process control. The 4-20mA analog output signal or optional Modbus RS-485 communications can be connected to any existing PLC, DCS, or EMS system.

Detect switches are designed to register mechanical movements and will in return generate an electronic output. The DE series comes in many different versions, detecting horizontal as well as vertical movements. The component sizes range from very compact switches in ultra-low profile to larger waterproof versions. They offer one- or two-way operations and come in a variety of travel as well as activation forces. Generally, the operation of these detector switches is silent, and offers up to 300K cycles of trouble-free operations. The DE Series offers a wide range of detector switches for many different applications such as robotics, white goods, telecommunications and industrial equipment.

For applications where power is not available, the Model WD3-BP-D1-A is battery powered. Otherwise, either AC or DC supply voltages can be used to power the water detector. The sensing height can be adjusted to as low as 1/32" using the included adjustable mounting bracket. The mounting bracket can attach to any flat surface by either using the attached adhesive strips or mounting screws.

Because of the difference in integer values between the Graph and Text tabs, you will need to use MODIFYSETTINGS twice in one iteration: once before saving the text file, and once before saving the graph file.

As for saving the detector settings - you did it right. When I say to save, I mean this: open the Detector Viewer settings dialog and click Save. That way, a CFG file is created for you to modify with the code I provided.

The SharpEye next generation 40/40D series features ultra fast fastest detection of hydrocarbon-based fuel and gas fires at the longest distance at up to 300 ft. (90 m) using pioneering QuadSense technology - the next step in the optical flame detection industry with best-in-class performance and reliability.

The series is suited to meet the challenges of any high-risk industrial application with revolutionary UV/IR BIT and smart field of view optical integrity for flawless operation, widest operation temperature range in extreme weather conditions providing trustworthy protection of major value property and personnel to keep a SharpEye on your safety.

The SharpEye next generation 40/40C series is based on proven SPX Triple-IR (IR3), features fast detection of hydrocarbon-based fuel and gas fires at long distance using pioneering QuadSense technology - the next step in the optical flame detection industry with enhanced performance.

The series is globally certified and suited to meet the challenges of the most demanding applications with revolutionary UV/IR BIT and smart field of view optical integrity for flawless operation, wide operation temperature range in extreme weather conditions providing trustworthy protection of high value property and personnel to keep a SharpEye on your safety.

From things I've read and heard, there is a small but loyal following for at least some of the CZ series (with single digits, -3, -4, -5, -6, etc.) and even claims that they are still today among the best coin detectors. I wasn't detecting when this series was available and don't know any more than a few snippets here and there in posts. They do show up on eBay and from (at least some of) the prices, I surmize they are still in demand. Would someone post an overview of the series, highs and lows, pluses and minuses, etc.? I think I've read that Tom Dankowski used to mod one of these models for extra depth. Also wondering if Dave Johnson had a hand in the design/engineering of this series or if they occurred in the time window when he was working elsewhere.

So far only Fisher, Minelab, and White's have dabbled in multifrequency in any real way. Fisher and Minelab both introduced their new multifrequency designs in 1991 and so both can argue the fine details of who was "first".

The CZ series was developed by Fisher Research with lead engineer Dave Johnson playing a major part. Running at 5 kHz and 15 kHz, the CZ is still one of the better coin detectors ever made and is particularly effective in saltwater environments. The CZ-20/CZ-21 is still considered to be one of the best saltwater models made. The basic CZ design is the same with the exception of the still in production CZ-3D, which tweaked and moved various target responses in an attempt to deliver more and better old coin finds. The CZ series is an old analog design requiring a great deal of hand tuning. This tuning suffered greatly as the "old" Fisher at Los Banos went out of business and took time for the "new" El Paso Fisher to get right. Details here by Dave J.

I had several CZ detectors and my personal favorite was the CZ-5. The CZ series will chase coins with the best detectors made today. The only real complaint you will hear is a tendency to identify some deep nails as non-ferrous coin targets.

The Cz series is quite unique because Fisher rearranged the classic target id scale. Nickels in particular were placed at the high end along with the rest of the coins. The scale is very basic - iron (low tone) aluminum (med tone) and coins (high tone). This simple systems is very effective in practice for coin detecting; just go dig high tones. It was so effective the CZ was nicknamed the "Coin Zapper". A fourth tone was added later to break the zinc penny/indian head penny range out as a separate "old coin" range.

I often toy with getting another CZ but I never end up being happy playing the nostalgia game. It was always my wish that Fisher somehow reproduce the CZ as a compact digital design but so far it has never happened. The closest you get is the single frequency F75 which can be set up to emulate the CZ tones to a large degree. Making a direct translation from analog to digital apparently is not easy without something getting lost in translation.

Balance with the 10.5" coil is sub-par. I never had an 8" for mine, but used the 5 and 10.5. I made up a sling/chest mount for my control box, but should have put some weight on mine behind the cuff to make it better to swing....my shoulder is a bit damaged by swinging it. I should have spent more effort making it more ergonomic and kept it...it did rock on the wet sand in NJ, and found me quite a few deep old coins inland as well.

Wow, Steve. You never cease to amaze with your encyclopedic knowledge. Thanks for the detailed reply and the links. Interesting read in those Dave J. posts where he talks about the issues with calibration.

Weird how the numbering started with -6, then dropped to -5, up to -7, all the down to -3D (with some two digit models in between). Without your timeline dates I never would have figured that out and just assumed the -3D was the first, not last. Also, the way Fisher's webpage is organized (CZ-3D listed as a deep cache detector), I completely missed the fact that it's still manufactured and marketed. And I've visited that site way too many times to count.

For some reason they kept making the CZ21 underwater detector and archaic CZ3D but completely abandoned what could have been a cutting edge line of land/beach/water machines that could still be going strong today.

I bought my CZ20 with 8 inch coil in 1998 with plans to get into water hunting and possibly diving. That idea never took off but I ended up using it on the wet sand for 15 years with great results before getting a Minelab Explorer SE. While the CZ20 performed great on the wet sand, it wasn't designed to be used out of the water. When FT took over, I expected to see a whole new line of CZs for land, beach, and water but it never happened.

The CZ3D is a dead end design and financially uncompetitive. It is all-analog, 2 full-sized stacked boards with thru-hole parts, and has 21 trim pots; basically a production nightmare. Yes, we could surface-mount it but even then it's a really big circuit that still needs a big enclosure. Yes, we could digitize it, get rid of the trim pots, and shrink it substantially but that's called "an all-new design."

The CZ design is best thought of as a single-frequency (5kHz) detector with the ability to cancel salt. The 15kHz component is weak and not all that useful for detecting targets. I once proposed a variable frequency design that works the same way but the user can vary the primary frequency from a low of 2-3kHz up to the gold range, maybe 50kHz. At lower frequencies the user could turn on salt cancel. The idea got no interest.

hi carl!

what about tom dankowski's calibration efforts on the cz-3d? did this make any difference in the "true"

over all performance of the analog circuit?. apparently, this circuit was a "bear" to calibrate, but from what everything I have read, once it was "calibrated properly" it would NOT drift for many years.tom introduced the "changes" to the cz-3d so as to "extend" the life of the unit.i still believe it is a terrific coin sniper, and sooo easy, and a joy to use in the field.perhaps as you mentioned the complicated circuitry has contributed to it's present financial predicament, and the fact that t is NOT a digital design has been it's downfall. apparently it is not cost effective to produce.but it hung on. for along time, because guys know how good it is as a coin detector.

(h.h.!)

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