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DX200 DIVER HELD MAGNETOMETER Operating Instructions

1. Check that both the Sensor Probe and Bonephone are in good condition Check by substitution if possible or by monitoring the nominal resistance of Bonephone Headphones Connecting a good quality multi meter across the pins of the plug can check the resistance NB It is good policy to firstly check the multi meter s reading with the leads shorted together this provides a measure of what residual reading to take into account gt See DX200 Resistance Chart below ltem Resistance ohms Land Headphones 15 0 Minimum Volume U W Headphones 6 There is no user test for the Sensor Probe other than visual mechanical inspection Inspect the connector and cable looking for any signs of damage that could allow ingress of water into the cable or connector If damage is found or if you are unable to determine the cause of the fault please contact your Aquascan agent or us directly Contact details our representatives are available on our website DX 200 DIVER HELD MAGNETOMETER User Manual Symptom 1 2 Erratic Performance from DX200 Module First check as above Check that the contacts of the bulkhead connectors are clean Check that the connectors of the Sensor Probe and Bonephone are clean If necessary reduce the contact resistance by slightly prising the gap in the male contacts this will increase the firmness of the connector on insertion Check for visible damage to Sensor Probe cable and connector which cou
2. E D 1Q0rmm z E wH I Basic outline of Case amp Sensor Stem DX 200 DIVER HELD MAGNETOMETER User Manual Aquascan International Limited DX200 ACCESSORIES AQ 4 061 DX 200 Bonephone Fully waterproof headphone utilises Ikelite underwater connector to connect to the DX 200 Control Module Normally placed against the skull at the back of or below the ear whilst underwater enabling the diver to clearly hear the change in the Detector tone when metal is sensed AQ 4 062 DX 200 Bonephone with extending flex cable Fully waterproof headphone utilises Ikelite underwater connector to connect to the DX 200 Control Module Normally placed against the skull at the back of or below the ear whilst underwater enabling the diver to clearly hear the change in the Detector tone when metal is sensed AQ 4 030 DX 200 Land Headphones Rugged headphones for use above water enabling The AQIB to be utilised as a powerful land detector The Headphones feature an adjustable volume control and a comfortable fit for the user AQ 4 031 DX 200 Underwater Headphones Rugged headphones for use underwater giving an alternative to the Bonephone These are particularly useful in warm waters where a diving hood is not normally worn They also provide a more powerful sound level that can enhance the ability to sense even the most subtle changes in the audible output 15 DX 200 DIVER HELD MAGNETO
3. Once you achieve the audio threshold adjustment turn the POWER SENSITIVITY control to HI You will probably have to make minor adjustments to the threshold setting when you switch to HI Once you have the threshold set to the low frequency ticking you are ready to begin testing Test the operation of the DX200 by turning slowly in a circle with the Sensor Probe pointed down at about 45 degrees As the Sensor Probe is pointing in the direction of a target you should hear an increase in the audio output If you make a full circle without noticing any change in the audio output move 5 metres closer to your target and complete the circle test again 7 Once you are able to detect an increase in the audio signal frequency or pitch you should be able to move the Sensor Probe back and forth in an arc and notice where the highest audio output occurs which should be as the probe is pointed directly at the target Using this technique you can use a sweeping motion of the probe to actually walk yourself to the target 8 As you get closer and closer to the target the DX200 will begin to have constant audio output so you will need to lower the sensitivity to be able to actually pinpoint the target Do this by changing the SENSITIVITY setting to MED And then as you get even closer change the setting to LO 9 If possible experiment with several different targets of different sizes to get an idea of how the unit behaves under different circumstance
4. charged and will require a full 14 hours charging duration to bring the unit to a fully charged status Make sure the DX200 is in the OFF position Plug the output lead from the charger into the AUDIO amp CHARGE socket on the control bulkhead Please note that this can only be inserted one way round due to the locating polarising pin Screw down the retaining collar This should be good finger tightness only DO NOT ON ANY ACCOUNT PLUG THE CHARGER INTO THE PROBE SOCKET AS DAMAGE MAY BE DONE TO THE ELECTRONICS Ensure the charger is correctly connected to the Charge Audio socket before plugging the charger into the mains supply 100 250vAC After running for an hour or so the charger will get warm to the touch This is quite normal THE CHARGERS SUPPLIED WITH THE DX200 CHARGE AT A REGULAR RATE FOR APPROXIMATELY 6 HOURS AND THEN GO INTO A TRICKLE CHARGE MAINTENANCE MODE WHILE CHARGING AT THE REGULAR RATE THE GREEN LIGHT WILL BE ON ONCE THE CHARGER DROPS INTO TRICKLE CHARGE MODE THE LIGHT WILL GO OUT THIS SHOULD NORMALLY TOP OFF THE CHARGE IN THE BATTERY PACK AFTER A DAY OF WORK BUT IF YOUR DX200 IS FULLY DISCHARGED YOU SHOULD WAIT UNTIL THE LIGHT GOES OUT THEN UNPLUG THE CHARGER FROM THE MAINS AND PLUG IT BACK IN TO INITIATE ANOTHER REGULAR 6 HOUR CHARGE CYCLE The batteries will not be damaged by being left on charge for a longer period than necessary due to the controlled charge current 14hr rate If the batteries become f
5. DX 200 DIVER HELD MAGNETOMETER User Manual AQUASCAN INTERNATIONAL LTD AQUASCAN HOUSE HILL STREET NEWPORT SOUTH WALES UK NP20 1LZ Aquascan International Limited Tel 44 1633 841117 Fax 44 1633 254829 UNDERSEA DETECTION EQUIPMENT Email info aquascan co uk Website www aquascan co uk DX200 DIVER HELD MAGNETOMETER Operating Instructions This manual is copyright 2010 Aquascan Int Ltd all rights reserved This document must not be replicated in whole or part without the prior express permission of Aquascan International Ltd Issue 4 19 January 2010 DX 200 DIVER HELD MAGNETOMETER User Manual Page Contents L Front 2 Page of Contents 3 Introduction Applications Example of appropriate use of the DX200 4 General comments The DX200 Equipment 6 Initial Testing of your DX200 Charging the batteries 8 Underwater Operation 9 Care and Maintenance 10 Battery Care amp Checking Battery Performance Status 11 Measuring battery voltage 12 Troubleshooting Guide No Response from the DX200 Module Erratic Performance from the DX200 Module 14 DX200 Specifications 15 DX200 Accessories 17 DX200 Optional Accessories 18 DX200 Professional Kit 19 Manufacturer Contact Information 20 EC Declaration of Conformity Product Guarantee loose insert DX 200 DIVER HELD MAGNETOMETER User Manual Introduction The AQUASCAN name has been established for more than two decade
6. G PINS OVER TIGHTENING OR INSTALLING THE PLUG WITHOUT THE RUBBER SEAL CAN PERMANENTLY DAMAGE THE SOCKET WHICH MAY CAUSE THE CONTROL UNIT TO FLOOD Note This plug can only be inserted one way round due to the polarising pin 4 Plug the connector on the Bonephone or headphone lead into the PHONE amp CHARGE socket and screw down the collar as above NB For testing on land the headphones if available are much easier to work with 5 Locate yourself to the centre of the testing area hold the Sensor Probe at full arm s length from your body pointing down at about 45 degrees and switch the unit on by rotating the POWER SENSITIVITY control to the LO position If a continuous sound is heard immediately the SET AUDIO control should be rotated one way or the other until the audio threshold is reached this is indicated by a low frequency ticking sound in the Bonephone Headphones There is a centre point where you will achieve the low frequency ticking sound and turning the SET AUDIO control either way from this point will result in an increase in the audio output Note The controls on the top of the DX200 are rotational only The POWER SENSITIVITY control has 4 positions and the SET AUDIO control is a 10 turn potentiometer Rotating these controls past their stops will result in permanent damage and the unit will have to be sent to an approved service agent for repair DX 200 DIVER HELD MAGNETOMETER User Manual 6
7. METER User Manual AQ 4 010 Battery Charger Switched mode unit with 100v to 250v AC 50 60HZ input voltage range Used to recharge the DX200 Module internal battery pack Can be supplied with option of US UK or European type Power Connector DX200 Control unit with standard D Ring harness attached DX 200 DIVER HELD MAGNETOMETER User Manual DX200 OPTIONAL ACCESSORIES PRENAS Optional DX200 Armsaver probe extended DX200 Control Unit mounted in optional Armsaver Close up of DX200 Armsaver Probe connection 17 DX 200 DIVER HELD MAGNETOMETER User Manual INTERNATIONAL quascan International Limited DX200 PROFESSIONAL KIT DX 200 Professional Kit Includes Custom waterproof Shipping Carrying Storage case for DX200 Control Unit Sensor Probe Charger Bonephone Land Headphones Underwater Headphones and Armsaver D ring mounting system and waist belt mount DX 200 DIVER HELD MAGNETOMETER User Manual Manufacturer Contact Information If you should need to contact Aquascan International Limited for advice on your purchase to order further equipment or to arrange a repair please use the following contact information Mailing Address Aquascan International Limited Aquascan House Hill Street Newport South Wales NP20 1LZ United Kingdom Tel 44 0 1633 841117 Fax 44 0 1633 254829 E mail Sales Enquiries sales aquascan co uk Gen
8. al and dispose of your old battery pack in line with local guidelines Measuring battery voltage Note Early versions of the DX200 did not originally have this feature To do this the unit must be turned off Using a multimeter on 20v range measure between the LOWER terminal of the sensor connector and the UPPER terminal of the phone charge terminal The voltage of a fully charged battery is over 10v If the voltage reads 9 6v then the battery is near the end of its useful capacity and will require charging before use Although there is voltage present on the terminals when the unit is turned off no damage or battery drain will occur if the terminals are shorted the unit submerged during cleaning or if the probe and or bonephone headphones are left connected DX 200 DIVER HELD MAGNETOMETER User Manual Troubleshooting Guide Symptom No audio from DX200 Module Check the following l Check that the battery has been charged as the voltage drops below a certain point erratic behaviour will result Further decrease in voltage will result in total lack of functionality gt If not place DX200 on charge and then re test 2 Ensure the probe and headphones bonephone are connected to the correct sockets 3 Try using an alternative Bonephone AQ1B Headphones 4 Try using an alternative Sensor Probe if available Having no sensor plugged in should make the DX200 give full audio through a bonephone or headphones 5
9. covered target is located and returns to the surface General comments The DX200 is NOT a metal detector It detects disturbances in the magnetic field usually caused by the presence of ferrous material The user should note that other things can cause magnetic disturbances that will affect the DX200 operation These include electromagnetic fields produced by electric 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 If you are searching for small items such as a cannonball a pistol a hand tool you will probably be more successful utilising a metal detector such as the Aquascan AQIB The DX200 is more suited towards larger items which will cause a larger magnetic deviation It is ideal for searching for cannons anchors cars pipes and any other large ferrous mass Larger ferrous masses will be detected at greater distances than smaller masses Keep in mind that Stainless Steel normally does not contain any iron thus it will not be detected by a magnetometer Also many outboard boat motors airplane frames fibreglass and aluminium boats have very little ferrous material in them and will thus not be detected by a magnetometer The DX200 Equipment A standard AQUASCAN DX200 k
10. er Manual 3 Dive to the search area to be searched 4 Switch the unit on and rotate the SENSITIVITY control to LO Hold the Sensor Probe at full arm s length in front of you and pointing down at about 45 degrees Rotate the SET AUDIO control to achieve the audio threshold point keeping the Sensor Probe at arms length and angled down at about 45 degrees Turn the SENSITIVITY control to HI Now you are ready to start searching If at any time you notice that there is too much interference from the sea bed or possible targets move away by 5m or more or swim up 5m from the bottom and try again When locating large targets swimming a distance off the sea bed may be advantageous 5 If you are trying to pinpoint a hit from a towed magnetometer the standard procedure is to start scanning around in a complete circle If you detect even the smallest change in audio in any given direction move in that direction and repeat the scan Just as in the Land Test above you should be able to guide yourself right to the target by following the Sensor Probe and adjusting the SENSITIVITY control down to MED and the LO as you get closer 6 If you are just doing a general search of an area you will probably want to establish some sort of grid and move in straight lines scanning back and forth in an arc to insure you cover the entire area to be searched Note Different environmental conditions may make a small difference to the threshold setti
11. eral Inquiries info aquascan co uk Technical Support support aquascan co uk Website www aquascan co uk Aquascan International Ltd DX 200 DIVER HELD MAGNETOMETER User Manual EC Declaration of Conformity We hereby declare that the following equipment complies with the essential requirements at the Electronic Compatibility Directive 89 336 91 26 3 and 92 31 This equipment should not be modified without our approval as this declaration will lose its authority Equipment description Diver Held Magnetometer Model DX200 Manufacturer Aquascan International Ltd Aquascan House Hill Street Newport NP20 1LZ S Wales Tel 44 0 1633 841117 255645 Fax 44 0 1633 254829 Email info aquascan co uk Applicable directives EN 55011 General Emission Standard Class A Group 1 EN 50082 Generic Immunity Standard Part 2 A technical construction file for this equipment is retained at the manufacturing base Ist January 1996 Signed gt l i Date im nssiesisssersoissrsossssursssssosrosesss D DINTE a J R WILLIAMS Managing Director a Name Position fa Wessidicdsesbcscossscs sasssbedeessed densesbeses EREE EAEE 20
12. erwater detection equipment Keep your connectors clean and dry between uses 1 Dry the DX200 paying particular attention to the area around the plugs 2 Clear any excess water present on the bulkhead by blowing or wiping with a soft cloth 3 Recharge the batteries if the total hours used is approaching 10 4 Never leave your DX200 lying in the hot sun as this could raise the internal temperature to the point where it may distort the case and harm the electronics This warning also applies to the Sensor Probe and headphones Bonephone 5 The electronic unit is sealed and pressure tested in the factory no attempt should be made to access the electronics If any servicing is required contact your supplier who will advise you where to send the unit Battery Care amp Checking Battery Performance Status The DX200 internal battery pack is an 8 cell series NiMH AA size pack giving a capacity of approximately 2800mA Hrs This capacity relates to an operational period of between 10 and 12 hours from full charge Note self discharge occurs naturally in a rechargeable battery During inactivity this self discharge causes the battery to slowly discharge itself over a period of months To maintain maximum performance it is important to charge your DX200 before use Checking Battery Pack Performance Note For routine maintenance this should be carried out every 3 6 months The recommended procedure is as follows 1 0 Connect the Sensor Pr
13. he tool most requested by users of boat towed magnetometers is a diver held device to help pinpoint magnetometer targets located with a conventional towed magnetometer The DX200 fills this need extremely well Example of appropriate use of the DX200 The following is an example of an application where the DX200 might be utilised with great success and great savings in time and effort A magnetometer target is found with a boat towed system in 35 feet of water The visibility is minimal and upon examination by a diver the bottom is found to be flat sand and no target could be detected with a metal detector 3 DX 200 DIVER HELD MAGNETOMETER User Manual The DX200 is taken to the bottom by the diver After the unit is switched on and set to HI sensitivity the diver scans around in a complete circle and notices a slight increase in the audio frequency in one direction Moving slowly in the direction where the audio output of the DX200 increased the diver scans back and forth in an arc and is able to move closer and closer to the target As he approaches the target the audio becomes almost constant so he switches the DX200 sensitivity to MED and continues to pinpoint the target Finally as he is right on top of the target he switches the unit to LO sensitivity and can actually detect the approximate size of the target by noting where the audio signal starts and stops and he scans around the area The diver marks the exact spot where the
14. it consists of the following items Sealed electronic unit Bone conductor earphone Bonephone Sensor Probe with cable and plug Mains Battery charger 100 250v with AC charging lead D Ring mounting system Operating instructions Sy Pe a DX 200 DIVER HELD MAGNETOMETER User Manual The Aquascan DX200 Diver Held Magnetometer is a precision built instrument using the latest Fluxgate magnetic sensors and has been designed for both ease and simplicity of use in the underwater environment featuring three sensitivity settings for use in pinpointing targets The unit is ruggedly built to withstand normal diving usage but to get the best trouble free operation and long life certain simple operation and maintenance procedures must be followed Read the instructions carefully before diving with your DX200 DX 200 DIVER HELD MAGNETOMETER User Manual Initial Testing of your DX200 Note It is highly recommended that you familiarize yourself with the DX200 on land before taking it into the water This section explains the basic functionality of the DX200 and how to use the controls It is much easier to learn to operate the unit without the challenges of limited visibility restrictive dive equipment currents etc So please take the time to perform this Initial Testing of your unit before venturing into the water with it 1 N B N B N B Charging the batteries The DX200 is supplied only partially
15. ld have caused water ingress Check that the male connector seals are in place and clean If you are unable to determine the cause of the erratic behaviour contact your Aquascan agent for assistance If at all you suspect that water has penetrated the case cease use immediately Contact your Aquascan agent at the earliest opportunity DX 200 DIVER HELD MAGNETOMETER User Manual DX200 SPECIFICATIONS MATERIALS amp DIMENSIONS INSTRUMENT CASE Housing material eee Machined uPVC Housing Diameter Max ceeeeeeeeeeees 100mm Oyerall length seas s seseavetcnseeaemsevndaceneesencnes 187mm MAGNETOMETER PROBE Probe WOWSIG sicvsiedsidasecesaseddecsnsacedaasseeoncesgneicns GRP Probe Dia cats cates ncutecmicncc testi ewecenaaees 25mm Probe Leng aioe cerespierates cssiacadescceveancevers 750mm CABLE Construction Twin core shield Diamet t siossissrinra riii 4 5mm io ile Ad eee eee nee oe etn meee ene eae es Polyurethane TS BUD snd ses ceccstanasensasnevasadeetencsauheven 2m approx 6ft POWER Power Internal Rechargeable NiMH battery BoC een ee ee Universal 100 250v AC Charge time from empty s2sasasscodiecsussscceoseeas 14Hrs CONTROLS Power On Off Incorporated with Sensitivity Sensitivity Switch we Off Low Med High Set FUNG IG rersehen Multi turn Pot WEIGHTS Control WT shes Sessa seeaaies o 1Kg Probe amp Cable acisseieniatneaiaeannes 0 7Kg Comm a Dimensions Case amp Sensor
16. ng as you perform your search which can be readjusted by the SET AUDIO control knob Care and Maintenance Proper care of your Aquascan DX200 will be repaid by a long and trouble free life and attention should be given to the following points 1 After use and before removing plugs make sure that the unit is switched off and wash down with clean fresh water NEVER use chemicals to clean your DX200 as these will damage o rings and seals which can cause them to fail and allow the incursion of water into the control unit 2 Remove the Sensor Probe and Bonephone Headphones plugs from the bulkhead sockets and make sure the Rubber Seal is free from sand or other debris remove and clean if necessary Dry off the plug pins and blow any moisture out of the sockets You can use a Q Tip to clean and dry the sockets Ikelite does not recommend using silicone grease or any other material on the connectors The rubber seal provides adequate isolation of the connectors from the water Use of these type products tends to accumulate sand and other debris which can actually interfere with the seal Never utilize petroleum products such as Vaseline since these will harden DX 200 DIVER HELD MAGNETOMETER User Manual the rubber seal making it non functional The rubber seal should be replaced any time it becomes stiff as this will interfere with its function Note A dirty or corroded connection is the most common cause of poor performance of und
17. obe to your DX200 module 1 1 Power on your DX200 and leave it on overnight to fully discharge the battery 1 2 Power off the DX200 and disconnect the Sensor Probe 1 3 Charge the DX200 for at least 14 hours using the provided charger 1 4 Once the DX200 is fully charged disconnect the charger 1 5 Connect the Sensor Probe and Bonephone Headphone to the DX200 unit and switch it on Place the Sensor Probe away from any ferrous target and adjust 10 DX 200 DIVER HELD MAGNETOMETER User Manual 1 6 1 7 1 8 1 9 Note the SET AUDIO control to get a steady slow ticking sound if possible This may be difficult if you are inside a building due to the electronic noise and many metal objects Make a note of the time Confirm the functionality of the unit every 30 minutes re adjusting the tick over as necessary Measure the battery voltage every hour using the procedure below Measuring battery voltage When the battery voltage reaches 9 6v this can be considered to be the end of the charge status for the battery This should be in the range of 10 to 12 hours for a healthy battery pack If the performance becomes unacceptable after less than what you the operator determine to be an acceptable minimal operational period then the DX200 Battery Pack may need replacing If your battery needs to be replaced please contact our technical support dept or Aquascan agent Please consider NiMH batteries as hazardous materi
18. s Having performed the above checks on land you are now ready to use the Aquascan DX200 in the water Underwater Operation NOTE As explained above in the Land Test you must be free of objects containing ferrous materials Steel dive tanks are probably out of the question Most Stainless Steel does not actually contain any iron so it usually won t interfere with the operation of the DX200 But check yourself carefully something as small as a set of keys can affect the operation of the unit and give you false readings Also don t try to operate the unit in the vicinity of a large steel vessel 1 The control unit of the DX200 can be worn or carried in a number of ways the choice will be influenced by the conditions and diver preference The most obvious choice is worn clipped to any suitable location on the diver with the D Ring mounting system provided with the unit Other options include the quick release belt harness strapping it to the upper arm or mounting it to the DX200 Armsaver optional accessory see section DX200 Optional Accessories 2 The Bonephone should be placed under the hood If no hood is worn it can be placed under the strap of the facemask or under a suitable neoprene headband Position the Bonephone so that it is on a bony part of the head close to the ear N B NEVER PLACE THE PHONE DIRECTLY OVER THE EAR AS THIS COULD INTERFERE WITH PRESSURE EQUALISATION ON THE EARDRUM DX 200 DIVER HELD MAGNETOMETER Us
19. s and conveys the message of underwater detection excellence using Proton Magnetometers and Pulse Induction Metal Detectors Aquapulse The newest addition to the AQUASCAN line of underwater detection equipment is the AQUASCAN DX200 DIVER HELD MAGNETOMETER The DX200 is a hand held gradient magnetometer utilizing fluxgate technology It is ideally suited for an array of search applications both on land or underwater Applications Wreckage The DX200 is the ideal tool for the location of buried ferrous wreck material There are unlimited applications in all types of archaeological wreck investigation It is the ideal diver operated tool to locate items buried deep in sediment It allows accurate mapping of all buried ferrous material prior to seabed disturbance It can also detect the presence of some forms of ballast material which in many cases gives a magnetic response Pipes and Cables The DX200 is also ideal for locating and mapping pipes and armoured cables buried in sediment It can detect at burial depths of between 1 metre and 7 metres dependent on the diameter of the pipe or cable E O D amp Security There are unlimited applications in all types of underwater investigation for the presence of ordinance weapons etc Salvage The DX200 is a useful tool for the successful recovery of lost items either in low visibility or where lost in soft sediment It is the ideal tool to complement surface operated searching T
20. ully discharged due to natural usage for the maximum operating period or through the unit accidentally being left in the on state the unit should be fully recharged as soon as possible to avoid irreparable damage to the battery cells see above for charging from a discharged state DO NOT USE ANY OTHER BATTERY CHARGER THAN THE ONE SUPPLIED AS DAMAGE TO THE BATTERY PACK MAY RESULT DX 200 DIVER HELD MAGNETOMETER User Manual INTERNATIONAL When the charge period has elapsed disconnect the AC supply to the charger first and then unplug the connector from the socket on the detector 2 For initial testing on land you will have to find a location where you can position yourself at least 30 metres from any large ferrous objects in all directions Get rid of anything containing iron on your body or in your clothing and leave your cell phone at home An empty farm field or park or sports field is ideal for testing Park your car at the edge of the field at least 20 metres from where you will be testing or find a location where there is some large ferrous target in one direction only 3 To prepare the DX200 for use plug the connector on the Sensor Probe into the SENSOR socket and screw down the retaining collar This should be good finger tightness only N B DO NOT EVER USE PLIERS OR OTHER TOOLS TO TIGHTEN THE PLUG COLLARS THESE ARE DESIGNED TO BE USED FINGER TIGHT WITH THE BLACK RUBBER BULKHEAD SEAL IN PLACE ON THE PLU

DX200 DIVER HELD MAGNETOMETER Operating Instructions

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