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Registriran : 21.03.2006
mjesto: Srbistanski tamni vilajet
prilozi: 993
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General Description

MINEX-2FD-4-530
The MINEX 2FD 4.530 metal detector works on the continuous-wave EMI principle with two parallel frequencies. It is an improved version of the MINEX 2FD available as an off-the-shelf product since November 2005.

The one-piece design aims to make the machine fast to put into operation, low in weight and precisely balanced, mechanically durable and with as few mechanically "weak points” (like cables or plugs) as possible. A drillsafe telescopic bar with improved fast-lock clips keeps the searchhead in the chosen position.

The MINEX 2FD 4.530 is equipped with an easy-to-use, push-button, groundlearn procedure to adapt to all soil conditions. A digital data interface downloads ground condition data, which are used for further software improvement. The same data interface is to update software, which can be done by the customer: programme and software updates are supplied free.

Safety considerations strongly influenced the MINEX development. An audible alarm informs the operator about malfunctions. Low battery levels are indicated by a red LED, while still ensuring hours of safe work without any loss of sensitivity. When the battery level is critically low, an additional audible alarm is activated. Extra safety is ensured by a steady ticking-sound during operation. The searchhead does not need to be moved to indicate a signal: keeping the head stationary over an object will not lead to a drop in signal level.

By covering different frequencies, all metals can be found with approximately the same sensitivity setting.

Working Characteristics

By using a non-dynamic principle, there is no minimum speed for the movement of the coil. The gradiometric arrangement of the search coil indicates metallic objects with a switching sound when the centre of the coil passes over them. Thus it is possible to pinpoint objects exactly, to separate objects close to each other and to work alongside big metal objects such as fences, railways and gates.

As an example, minimum metal mines in a horizontal distance of about 10-15 cm from each other can be separated and localised. The only steady background noise is an unobtrusive control-tick .

Salt and fresh water does not influence the MINEX’s detection capabilities. Different soil types are identified on site with the simple push-button ground-learning device.

This ensures that the detector is adapted to particular soils without choosing and using preset soil types. The 2FD 4.530 offers five possible sensitivity settings, by a switch on the back of the detector, thus enabling clear identification of the chosen setting by a supervisor from the rear. The “optimised” sensitivity step offers maximum sensitivity for the “learned” soil type at full ground compensation. One higher and three lower sensitivity settings are available.

Detectors in use today

- The MINEX 2FD 4.530 has been in service with demining forces in Africa and Asia since early 2006.

- The MINEX 2FD 4.500 has been in service since 2000, mainly in Afghanistan, Australia, Austria, Croatia, Denmark, Egypt, France, Guinea Bissau, India, Mozambique, Oman, Portugal, Spain, Switzerland, Tunisia, the U.S. and Viet Nam.

- The previous version, MINEX 2FD 4.400 with identical features to the 4.500 version, has been in field use since 1991.

- The MINEX 2 FD series is in service with humanitarian deming and military forces in more than 30 countries.

Power supply

As standard, the MINEX 2FD 4.530 is powered by three 1.5V D cells. Rechargeable batteries can be used, varying the indicated operating times depending on their quality and age. Battery charge status is indicated (low-medium-high) when switching on the detector.

Under all circumstances the sensitivity and detection quality is not influenced by the battery conditions. At 20° C approximately 30 hours of continuous operation are generated. With a normal operating schedule (four hours twice a day) a total operating time of approximately 50 hours can be achieved.

Under most circumstances, one set of batteries ensures sufficient supply for one working week.

Factory support

Spare parts are available exclusively from Foerster. Rechargeable batteries similar to those used for the MINEX can be purchased on the free market.

Besides Foerster’s direct support, the company is represented in more than 40 countries, most of them offering complete after-sales service. They can also provide on-site training and have modern test and training areas at their facilities in Reutlingen, Germany.

These areas offer excellent training conditions for mine/ERW search under various scenarios. A full training programme for trainers – including lessons on background knowledge and various training materials – is available in German and English.

Training can be requested as part of the purchase package. Manuals and service documentation are available in German, English. Training can be requested as part of the purchase package.

Manuals and service documentation are available in German, English, French, Portuguese and Spanish as standard, plus other languages on request.

Maintenance and Support

MINEX maintenance is at two levels: basic field maintenance and workshop maintenance. Personnel handling a workshop must have some basic knowledge of mechanical and electronic repairs. Foerster can supply complete tool sets and testing equipment as well as service training. Fully equipped workshops with trained personnel can handle all repairs to factory final assembly level.

Test and Evaluation

Foerster tests its equipment within its own facilities, mainly for research and quality control, for the most part and as far as possible under “real” conditions. This includes the targets (mines and ERW) as well as the circumstances (soil, disturbing influences, etc.). The results are not available publicly but the Foerster training site allows interested customers to see the equipment working under these conditions.

The MINEX 2FD 4.530 was tested by the EC’s Joint Research Centre in Laos in 2004 and in a comparative field trail in Mozambique in 2005 as well as in a laboratory test trail by JRC, Institute for the Protection and Security of the Citizen, in Italy from November 2003 to January 2006.

The following test results are available in the right-hand column under "Related Reports & Publications":

1) Systematic Test and Evaluation of Metal Detectors. Interim Report field Trial Mozambique, 12 April - 5 May 2005; published in 2005 (see also: maic.jmu.edu/journal/10.1/notes/guelle/guelle.htm).

2) Systematic Test and Evaluation of Metal Detectors. Interim Report field Trial Lao, 27 September - 5 November 2004; published in 2005.

3) Development Tests for Measuring the Detection Capabilities of Metal-Detectors; published in 2003.

The MINEX FD 4.530 prototype was tested in May 2005 by BAM-Berlin at the Benkovac testsite in Croatia. Test results are avaialble from BAM; (see also: http://www.bam.de/de/aktuell/presse/...ter_7_2005.pdf).

Known limitations and strengths

No significant limitations reported to date.

Strengths:

- One-piece design

- Ease of operation

- Easy ground-learn-procedure for adapting to all soil conditions
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