Let's result practical to result of work with some devices.
Goldmaster-3 The Scottish firm White's. This device us finds the most part of nuggets, including the majority small (from 180 mg to 1 gr.). The smallest nugget (gold) had the size approximately 5х4х2 mm. The same device had been found wedding rings. As a whole, this device was used by me most of all.
The device has the discriminator which well rejects the false signals connected with ferriferous subjects. On pirit of which was much, the device did not react, though sometimes showed anomalies on black uglistyh slates. He also has allowed to find some large crystals ilmenita and the large unit pirrotina.
Expenditures of labour on area inspection by this device average about 1 hour on 100 m. sq.
The device idle time in circulation, works from 8 finger-type batteries for 1,5 century which suffices for 3-4 days of work.
The test was spent with metal detector Fisher 1280-X Aquanaut which has been announced in 1985. It is the underwater metal detector, but can conduct search and on a land. It is by default completed with 8 inch search coil. The detector design is executed in special style, the pistol handle is combined with absolutely direct bar regulated under your growth. Power supplies are directly in electronics block, are closed tightly. Electronics block can be carried on a zone belt or it is mounted directly on the detector.
Elements of management of the detector:
1280-X has 3 regulators of options of the detector. A regulator of sensitivity Sensitivity, a regulator of discrimination Discrimination, and a regulator of loudness of sound signal Volume. The detector has automatic balance of a ground, works only in a mode motion, that is for purpose detection, the wave of the search coil is required. Eight inch search coil behaves the best, in comparison wit
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Let's consider two principles of search valuable obektov in the field with use metallodetektora. We will assume that the size of a field is that that for one hour the ring of yours metallodetektora can pass 10 % of the area of a field. The first of considered types of search consists that the operator freely walks up and down across the field in any order, without doing a ring of overlapping of the previous pass. The second type of search - search on setkoobraznomu to a route from 50 % overlapping of the previous pass.
By casual search you start to cover a field with speed of 10 % at an o'clock. But as you go across the field in a random way, you start to encounter areas which already have passed earlier and speed of survey of the new areas decreases (the Red line). Mathematical expression for a share of the surveyed earth is [1-e-rt].
Use setkoobraznogo a route from 50 % overlapping of the previous pass gives 5 % of the area of the surveyed field
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It was tested Garrett GTI 2500, it is the latest model of ruler GTI, its predecessor was GTI 2000. Changes in 2500 models were the following, depth of search is increased, the smoothing filter on balance of a ground, more exact recognition of the purpose by means of DSP the processor, system Fast Track is added. In general the kind at 2000 and 2500 is identical, to distinguish them it is possible only on a label.
The display on 2500 very informative, all program options for a kind.
Areas were from ferrous metal while we have decided them not to touch. During the search rest of the time in a mode of the Relic some fragments from nonferrous metal, a sleeve and an aluminium hairbrush, all on rather not to a deep water have got to us. But here that is remarkable at work with 2500, the detector is late at intensive pass over the purpose, probably a little, strong loading DSP of the processor affects, it was necessary to reduce vzmahovyj rat
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New model M6 from Whites was tested, this new car is similar on MXT, and tell that it as though continuation, to us the return sees, not continuation it, and the new model more simplified.
Matrix M6 search on a beach and so forth works on 14 kgts which gives good sensitivity to a trifle, will be just right. M6 copes two regulators and the switch, located on the detector case so e there is a traditional trigger, on a detector handle. Regulator Sens, includes/switches off the detector and accordingly regulates sensitivity of the detector. Regulator Disc accordingly carries out function of discrimination of metals, with inherent analogue discriminators division on zones. The switch has three positions, automatic tracking a ground, fixed and search function on a beach as you have guessed this switch is intended for manipulations with options on balance of soil. By the way it is a mode very much who approaches for those does not like to regulate balancing in manu
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ACE250 - One of new models of ruler ACE. ACE150 and 250 has replaced the previous number ACE of detectors, appearance and elements of management of the detector has essentially changed.
Electronics block is completely modified. The detector is designed in sports style, the detector weight is reduced, the search coil of new type Rhino Proformance is applied.
ACE 250 copes by means of 6 buttons of management. Power, Pinpoint, Elimination, Mode, Sensitivity and Discrimination. ACE250 has LCD the display which provides the user with the necessary information both by search and at detector adjustment, also as well as the information on the found out purpose, including:
Target ID: One of 12 segments identifies that was revealed.
Target Depth: Shows approximate depth of the found out object in inches; that is, 2, 4, 6 or 8
Condition of batteries: an icon of a condition of batteries.
At numerous requests us was metal detector Garrett, model GTP 1350 is taken on testing. Which is new working out in rulers GT.
At first sight GTP 1350 it is similar on GTI 1500, the same size of the block of electronics, well in general from outside GTI 1500. The truth in 1350 is available the, unique scale (a mask, a grid, name as want) which specifies in the size of the found out purpose. A thing, undoubtedly, very convenient, that is at a combination the discriminator – the size of the purpose, it is possible to do already more less detailed conclusion. GTP on russki this Graphic Target Profiling, this name 1350 has received from abilities not only to specify in the target identifier and depth through LCD but also and the target size, however, in a bit other form as it was and is on GTI models. GTP defines three types of object, on size it, small, average and big. GTP differs from GTI naturally price, has the search coil of other type, rather than GTI, and at the same tim
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In the beginning of 2005 Garrett has let out on the market cheap and quite worthy model Ace150, it was the new coil in manufacture not expensive, qualitative metal detectors from Garrett. Two versions of new models Ace are issued, it is 150 and 250. For today it is possible to tell that these detectors were generally recognised, both in the homeland of the detector in the USA, and in Russia and on all post-Soviet territory.
Ace 150 has not something in common with the first models Ace, these are absolutely new decisions in this ruler. Both Garrett Ace 150/250 yellow colours, have satisfactory ergonomics and easy enough on weight. As soon as you include Ace 150, all options are easy for understanding, three buttons the control panels located on a face sheet. 1. Mode 2.Sensitivity and 3. Power. LCD the display is moderately informative. The target index, better to say the cursor, specifies by search in one of 5 segments, identifying the purpose on
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It was tested Fisher 1225-X, it was spent both the air test, and field tests. In this article we will try to describe the detector with all its advantages and lacks. The only thing that not so is pleasant so it is the long wire from the search coil, such impressions that Fisher conceived these wires for 3 metre giants, it is necessary to wind coils on 25 wire that it did not dangle, in the rest, a detector design typical for Fisher. All is regulated under growth of the operator, the telescopic design is executed soundly, ljuftov is not noticed.
Electronics block joins a bar as on runners, as well as all Fishers.
1225-X has only 3 regulators of management of the detector, it is "discriminator", "sensitivity" and "pinpojnt". Certainly, there is a nest for ear-phones and built in dinamik. All regulators and the button pinpojnta are located quite ergonomically, and the hand does not get tired. The discriminator regulator as includes the detector,
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The new model from Minelab, X-Terra 70 was tested, it is the latest and best of ruler Terra, combining the most flexible options and the best possibilities in tradition Minelab why I so speak because it is valid so, having tested 70 model, take pleasure, Minelab really is able to do metal detectors. X-70 uses the checked up elements of management from others X-Terra models and adds a number new which seriously expand universality of this detector.
In tradition X-Terra X-70 as well as colleagues 30 and 50 allow to change working frequencies simple replacement of the search coil. As X-70 has two various ways of balance of the soil, one for dry, normal soil and another for a beach which suppose that the detector compensated influence of salt and black sand which considerably improve stability (stability) and depth of search in such areas. Other addition on X-70 is a mode prospecting which is an independent operating mode. 70 X-Terra copes 11 buttons which are located on electronics
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