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計測機器 AQUASCAN INTERNATIONAL DX-300のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。AQUASCAN INTERNATIONAL DX-300 19 ページ。 Diver held magnetometer

DX-300 – DIVER HELD MAGNETOMETER

User Manual

switches to desensitise as necessary to note the point where the peak response occurs.

The diver next determines if a larger peak response can be on a line that intersects at

90 degrees to the original search direction, this will assist in determine the exact

centre of the target and to an extent the size and shape of the target. The above

described technique using steady straight line searching and use of the range switches

to reduce the sensitivity where necessary to determine the true centre of the response

will pay dividends in terms of diver bottom time and in focussing any following

excavation in the most likely productive area.

General comments

The DX-300 is NOT a metal detector. It detects localised disturbances in the earth's

magnetic field that are caused by the presence of ferrous material. The user should

note that other things can cause magnetic disturbances that will affect the DX-300

operation. These include electromagnetic fields produced by electrical and electronic

devices.

Working around large industrial areas or under transformers and high

tension power lines will generally give the user problems with false readings. In the

water it is just important to be clear of any influence that may be generated by a large

steel vessel; and of course equipment on the diver such as a steel dive cylinder.

If you are searching for small items of debris, such as a cannonball, a pistol, a hand

tool; you will probably be more successful utilising a metal detector such as the

Aquascan AQ1B. The DX-300 is more suited towards larger items, which will cause

a larger magnetic deviation. The DX-300 is ideal for commercially searching for

buried UXO, pipes, cable and large ferrous debris. For archaeologists and wreck

hunters it is ideal for locating cannons, anchors, chains and other large ferrous items

that can confirm the presence of a buried wreck site. Large ferrous masses will be

detected at greater distances than smaller masses and will be noted to have a much

slower build up to the peak audible response.

The AQUASCAN DX- 300 Basic Kit consists of the following items:

1. Sealed electronic unit

2. Bone conductor earphone (Bonephone) .

3. Sensor Probe with cable and plug.

4. Mains Battery charger (100-250v) with AC charging lead.

5. D-Ring mounting system.

6. Operating instructions.