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 with 10 inch in congestion places threw dust and is is better adapted for search under water considering more exact instructions of the purpose. 10 inch coil provides a deep water by search of the purposes, and will capture the big area of search.
The regulator of loudness Volume regulates loudness of a signal on ear-phones and also includes - switches off the detector
Discrimination – supposes that the user has chosen type of the purposes, to ignore within small fragments of iron, such as stoppers, nails etc. or to accept.
Sensitivity – regulates sensitivity of the detector turned counter-clockwise against the stop specifies a condition of batteries.
On the control panel of the detector there is a light indicator, it will light up, when the purpose will be found out, force of heat of the indicator depends on stability of a signal. 1280-X eats from 8 AA batteries which settle down in the back party of the case. It is good that developers have considered that batarejnyj the compartment is completely separate of branch of electronics which eliminates any possibility of damage of the detector in case of leak of batteries or moisture hit in batarejnyj a compartment. On the detector which it was tested, the owner filled in a storage compartment some times, basically thanks to neglect in check of tightness of a compartment batarejnogo boxing before use. 1280-X holds batteries till 35 o'clock, but with good batteries, we did not try cheap batteries. It is possible to use accumulators, even it is necessary …
Test
1280-X we tested with 8 inch and 10 inch coil. As the owner 1280 almost all time worked with 8 inch coil, we have obtained from it all data, on work with this. And here with 10 inch coil it would be desirable to work. To begin with we have carried out the air test. The discriminator has been established on a zero mark, a sensitivity regulator in a maximum. So the five-copeck coin of the USSR feels on distance of 23-25 sm, a flask on distance of 40-42 sm, a bucket on distance of 70 sm, a limit 1 – 1.20м. It with 10 inch search coil, with the eight all on 2-4 sm is less. Though it is possible to add that 8 inch coil in field conditions behaves more steadily on a signal so 10 djujmovka often enough faced phantoms, is possible because of the maximum sensitivity, after dump of this, the detector behaved better, but depth of detection decreased. In soil all indicators it is a bit less, mineralizovannuju soil perceives more or less adequately so on a test platform of a high mineralization the detector moderately caught phantoms, all depends on sensitivity installation.
So at detection of the big iron nail, the detector gives out a short, faltering signal which differs from a signal on the purpose from nonferrous metal. 1280-X has problems completely to exclude the ferrous metal most part in lower options of the discriminator, however, after several business hours, it is possible will get skilled at to ignore the majority. Certainly, if you twirl the discriminator almost against the stop colour metal too will leave search. Detectors, since 1280-X have been developed to use, first of all, for search on shoal, and it is natural under water, it land detector to name very difficult. We have decided as to try the detector at coast, diskrim on 3, sensitivity on 8, the search coil of 10 inches. Into water came knee-deep, the blessing weather allowed. Then in 5-7 minutes have received a stable signal, yes, still, if you wish to search on shoal, on a beach, council, buy a scoop sand-scoop, on a long handle, very conveniently, costs approximately nearby 100$, good, qualitative, with a telescopic bar, from a stainless steel. And so, this signal has appeared a gold earring, probably someone has dropped, I think, centimetre 3-4 was in sand, to measure difficult when waters knee-deep, for one zachyorp a scoop have got.
Still have found pair of coins, local, a toy a nursery from metal, and so on a trifle, stoppers. In general, the device, of course, behaves not badly in water as the first underwater detector it will be very remarkable. We have worked with it a little and on a beach, coins lifted, as well as all standard detectors of this class, 20-22 sm as much as possible on full sensitivity, I do not know, pomojmu, Fisher never bad detectors did. Certainly, it is possible to carry it to minuses, batteries in one case (a weak cavil) though the case is completely isolated from batarejnogo a compartment. From someone I heard that 1280 is rather weak on sensitivity, would not tell. Quite adequately. Took we once again this detector on one sortie on lakes, there it was not possible to dive, nebylo equipments, but on a beach were developed with it, pair of ringlets gold have found, basically all on small depth, a beach however. In wood specially it would not be desirable to take it, well not that is type what with it in the field to leave. It especially my opinion.
The resume
1280-X it is developed, first of all, for search on shoal and under water. Do not forget about it, of course, it can work on the earth as the simple detector, but it is primary it has been conceived for water. The case is completely water-proof, it is possible to plunge under water. Wish to test in diving? This detector for you.
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