AQUAPULSE 1B-Compact UNDERWATER METAL DETECTOR
Contents
1. User Manual Make a note of the detection range on a suitable test object Leave the system operating and re confirm the functionality and detection range of the unit every 30 minutes re adjusting the tick over as necessary When it becomes impossible to set the threshold or the detection distance has dropped dramatically this can be considered to be the end of charge status for the battery With a new battery pack the operation time from a fully charged state should be in the range of 8 to 10 hours If the performance becomes unacceptable after less than what you the operator determine to be an acceptable minimal operational period then the AQIB Compact Battery Pack needs to be replaced If your battery needs to be replaced please contact our technical support dept to arrange for an installation of a replacement battery or in the case of an approved service agent please refer to the servicing data provided Please consider NiMH batteries as hazardous material and dispose of your old battery pack in line with local guidelines 14 AQIB Compact Underwater Metal Detector User Manual s SC INTERNATIONAL PEPPEN d Troubleshooting Guide Symptom No Response from AQ1B Compact Module Check the following l Check that the battery has been charged gt If not place AQ1B Compact on charge and then re test 2 Check that both Sensing Loop and Bonephone are correctly connected gt Try using an alternati2. 0 1633 841117 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 J R WILLIAMS Managing Director Name t ccdcaceaneateas ceccceceredccanevccecesescectistets Position 2 ccccccccccccccccccccccccccccccccecs 22
3. Shaft Set of straps enables user to use forearm to comfortably support 38cm Loop for long periods of time AQ1B Compact Control Module can also be secured to lower cup of the Arm Saver AQ 4 000 part 2 Lower Shaft Used in conjunction with Arm Saver and 38cm Loop Extends the sensing loop to a distance that eliminates background detection of metallic items on the diver Allows the sense head to be swung over a wide arc for good search coverage Locks into one of three Arm Saver positions to optimise the overall length AQ 4 080 20cm 8 Loop with Stem Fully Waterproof compact search loop uses Ikelite underwater connector that enables the Loop to be easily connected and disconnected AQ 3 001 20cm 8 Loop Same loop as AQ 4 080 but comes without Stem amp Handle This can be used with the Extending Handle AQ 04 001 and the Arm Saver kit AQ 4 000 AQ 3 002 25cm 10 Loop Fully Waterproof robust mid sized search loop uses Ikelite underwater connector that enables Loops to be inter changed AQ 3 002 is normally used with the extending handle to give a flexible usage 18 AQ1B Compact Underwater Metal Detector A Foi User Manual AQ 3 004 38cm 15 Loop supplied with a 20 metre 65ft length of re enforced cable and standard Ikelite connector for direct compatibility with a standard AQIB detector The extended length of cable allows the sensing loop to be slowly to
4. at a maximum on both scans is where the object lies Alternatively note the initial threshold of change in tone for each scan to define the detection boundary the object will lie in the centre of the bounded area 8 Check the detector on various sizes and shapes of both ferrous and non ferrous metal objects to get a feel as to how it responds on different targets 9 The 6 position REJECT control when set at its lowest setting MIN 1 position clockwise from the OFF position will give maximum sensitivity to small gold rings and thin section foils As the setting is increased by turning the control clockwise from settings 2 through 6 the detector will reject signals from silver paper ring pulls and other low mass non ferrous objects NOTE DO NOT TRY TO TURN THE REJECT SWITCH PAST THE 614 10 POSITION AS PERMANENT DAMAGE WILL OCCUR THE SWITCH WILL STOP AT THE 12 OCLOCK POSITION IT WILL NOT TURN ALL THE WAY TO THE MAX MARKING ON THE TOP LABEL OF PRE 2011 CONTROL UNITS Having performed the above checks switch the unit to OFF The Aquapulse 1B Compact is now ready for use on land or underwater Underwater Operation l The control unit of the detector can be worn or carried in a number of ways the choice will be influenced by which of the sense head variants is being utilised The most obvious choice is worn on the waist secured by the quick release buckle however if the 38cm 15
5. your AQ1B Compact module 1 1 Power on your AQ1B Compact MIN position one click clockwise from OFF and leave it on overnight to fully discharge the battery 1 2 Power off the AQ1B Compact and disconnect the loop 1 3 Charge the AQ1B Compact for a14 hour period The mains re charger supplied has an intelligent sensing device that senses the battery state and will revert to a low current charge once the battery state is sensed as fully charged it also has a timeout function that drops to the low current state after 14 hours if the fully charged state is not sensed in the meantime The latest type of charger is identified by the multicoloured LED and its direct connection to a mains socket The predecessor to the current charger had a single state GREEN LED and a mains connecting lead this version timed out after 6 hours and required to be switched off then back on to start a second 6 hour charge period followed by again resetting the power and allowing a final 2 hour top up to ensure a full charge is achieved 14 Once the AQIB Compact is fully charged disconnect the charger from the Mains and then disconnect it from the AQI B Compact 1 5 Connect an Aquapulse sensing loop and Bonephone or Headphone to the unit and switch it on to the MIN position Set the loop up away from any metal and adjust the SET AUDIO control to get a steady slow clicking sound 13 1 6 1 7 1 8 1 9 Note AQIB Compact Underwater Metal Detector
6. 010 Battery Charger Switched mode unit with 100v to 250v AC 50 60HZ input voltage range This is used to recharge the internal battery pack AQIB Compact Module The charger can be supplied with option of US UK or European type Power Connector 20 AQIB Compact Underwater Metal Detector 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 General Inquiries info aquascan co uk Technical Support support aquascan co uk Website www aquascan co uk 21 AQIB Compact Underwater Metal Detector User Manual Aquascan International Ltd 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 Marine Metal Detector Model Aquapulse 1B Compact Manufacturer Aquascan International Ltd Aquascan House Hill Street Newport NP20 1LZ S Wales Tel 44
7. AQIB Compact Underwater Metal Detector A Pn Fl f User Manual EIE Lat 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 AQUAPULSE 1B Compact UNDERWATER METAL DETECTOR Operating Instructions This manual is copyright 2011 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 8 August 2011 AQIB Compact Underwater Metal Detector PY aJi FL User Manual Pje a yii diiis Page Contents I Front 2 Page of Contents 3 Introduction 4 Initial Testing 6 Underwater Operation 8 Detection amp Interpretation Using Arm Saver Kit with 38cm Loop 11 Care and Maintenance 12 Checking Battery Status Performance 15 Troubleshooting Guide 16 Aquapulse 1B Compact Systems 17 AQIB Compact Accessories 21 Contact Information 22 EC Declaration of Conformity Product Guarantee loose insert AQIB Compact Underwater Metal Detector User Manual INTRODUCTION The AQUAPULSE name has been established for more than two decades and conveys the message of underwater detection excellence using the Pulse Induction PI principle Unlike some of the land based detection solutions tha
8. ARGE socket and screw down the collar as above NB For testing on land the headphones if available are much easier to work with Hold the search loop well away from any metal and switch the unit on by rotating the REJECT control to the MIN position first position clockwise from OFF Ifa continuous sound is heard immediately the SET AUDIO control should be rotated anticlockwise until the audio threshold is reached this is indicated by a low frequency ticking sound Alternatively if the unit is initially silent the SET AUDIO control should be turned clockwise to reach the audio threshold The audio can be set so that a normal slow ticking sound is heard or alternatively set slightly below the threshold so that operation is initially silent AQIB Compact Underwater Metal Detector i User Manual i Note The Set Audio control is capable of 10 full 360 degree rotations DO NOT try to turn this control past the stop point in either direction as irreparable damage will result to the control 6 Test the operation of the detector by scanning the loop over metal objects e g a coin keys or any convenient metallic object The audio note will rise rapidly reaching a maximum pitch when the object is centred on the loop axis 7 An additional check can be made on a piece of buried metal Scan the loop from side to side and locate the position of maximum tone Repeat the scan in the forward and backward directions The point where the audio is
9. AT SHOWS THE STATUS OF THE CHARGER AFTER CONNECTING IT TAKES A FEW SECONDS TO ANALYZE AND START CHARGING COLOUR MODE YELLOW BATTERY NOT CONNECTED YELLOW INITIALISATION AND ANALYSIS ORANGE FAST CHARGE GREEN WITH INT YELLOW TOP OF F CHARGE GREEN TRICKLE CHARGE ALT ORANGE GREEN ERROR 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 followed by a trickle charge If the batteries become fully 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 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 Plug in the connector on the search loop into the LOOP socket and screw down the retaining collar This should be good finger tightness only NOTE over tightening or connecting the Ikelite connector without the rubber seal can damage either the plug or the socket 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 CH
10. Velcro on the inside of the belt then the inner straps are closed to secure the module to the belt Care and Maintenance Proper care of your Aquapulse 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 wash down with clean fresh water NEVER use chemicals to clean your detector 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 Dry the detector paying particular attention to the area around the plugs Clear any excess water by blowing Itis very important to keep the Ikelite connector sockets and pins clean and dry when not in use Dirty or corroded pins and or sockets will seriously degrade the performance of your detector After 1 AQ1B Compact Underwater Metal Detector An User Manual i ra d PLNM d disconnecting the cables you can clean out the socket with a cotton swap and wipe off the plug pins with a soft rag 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 and the signal transmission NEVER utilize petroleum products such as Vaseline on the rubber seal these will harden the rubber se
11. al making it non functional The rubber seal should be replaced any time it becomes stiff as this will interfere with its function Recharge the batteries 1f the total hours used is approaching 8 or more Never leave your AQ1B Compact 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 Aquapulse accessories such as loops probes and bonephones headphones 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 If you ever notice any of the screws becoming loose on the control unit they should be tightened immediately Battery Care amp Checking Battery Performance Status The AQIB Compact internal battery pack is an 8 cell NiMH series pack giving a capacity of approximately 2700mA Hrs This capacity relates to an operational period of approximately 10 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 Checking Battery Pack Voltage To test whether or not your battery pack 1s charged you may use the following test which requires a DC voltmeter A digital voltmeter type is preferred since this measurement of voltage needs to be
12. connect to the AQ1B Compact 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 The AQ 4 062 is supplied with an extendable flexible cable which allows more freedom of movement with the Bonephone whilst underwater AQ 4 031 Aquapulse Underwater Headphones Rugged audio headphones for use underwater offering 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 17 AQ 4 061 Aquapulse Bonephone Fully waterproof earphone utilises Ikelite underwater connector to connect to the AQIB Compact 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 Aquapulse Land Headphones Rugged headphones for use above water enabling The AQIB Compact to be utilised as a powerful land detector The Headphones feature an adjustable volume control and a comfortable fit for the user AQIB Compact Underwater Metal Detector User Manual Aquascan International Limited AQ 4 000 part 1 Arm Saver Used in conjunction with a 38cm Loop and Lower
13. dvisable to keep the sensing head sufficiently high above the seabed to maintain an audible response whilst the sensing loop is passed over the area this should allow the centre of detection to be noted Rather than looking for the peak response over the centre of the metallic object another option is to define the boundary of detection this simply is done by noting the point that detection is first indicated when scanning towards the object from multiple directions When excavating very small detected objects it can be sometimes difficult to actually see the item a method of checking sediment as it is removed is to put the detector head to one side of the area to be excavated and drop the removed material on to the sense head this will easily determine if the object has in fact been removed with the seabed material The sense head can then be used to recheck the excavation for any further metallic items AQIB Compact Underwater Metal Detector User Manual Using Arm Saver Kit with 38cm Loop 1 Place the 38cm Loop on a flat level surface 2 Remove the Nut Bolt and Washer from the Lower Shaft and place the friction Washer in the recess on the Swivel Connector at the centre of the Loop as shown ee tf fare agra ae PE ill co i n P Washer in connector recess Nut Bolt amp Washer 3 Next slide the end of the Lower Shaft over the Washer and the Connector as shown below 4 Secure the Lower Shaft in place using t
14. e and simplicity of use in the underwater environment featuring good detection performance for locating both ferrous and non ferrous metals 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 detector Initial Testing of your AQ1B Compact Detector 1 Charging the batteries The AQIB Compact is supplied only partially charged and will require a full 14 hours charging duration to bring the unit to a fully charged status Make sure the AQ1B Compact switch is in the OFF position Plug the output lead from the charger into the PHONE 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 N B DO NOT ON ANY ACCOUNT PLUG THE CHARGER INTO THE LOOP SOCKET AS DAMAGE MAY BE DONE TO THE ELECTRONICS Ensure the charger is correctly connected to the Phone Audio socket before plugging the charger into the mains supply 100 250vAC After running for an hour or so the charger may get slightly warm to the touch This is quite normal AQIB Compact Underwater Metal Detector User Manual N B THE CHARGERS SUPPLIED WITH THE AQIB Compact ARE FULLY N B AUTOMATIC AND HAVE A COLOURED INDICATOR TH
15. ger reach due to the extending stem The extending handle allows for short duration use for beach and land searches For extended use on land the complete Arm saver assembly as supplied with the 38cm kit is a more practical solution 16 AQ 1 020 Standard 20cm 8 Kit Consists of Control Module Quick Release Harness Bonephone Battery Charger amp 20cm 8 Loop with Stem This is the most compact and economical version in the AQUAPULSE 1B Compact range The short folding stem allows the diver to stow the loop until required The control module is pre fitted with a D RING connecting system This version has the highest sensitivity to very small gold items due to the more focused sensing area See the accessories listing for an optional transit case for this version AQ 1 010 Standard 38cm 15 Kit Consists of Control Module Quick Release Harness Bonephone Battery Charger amp 38cm 15 Loop amp Adjustable Arm Saver Assembly This version is the most powerful general purpose search tool due to the large field of energisation created by the 38cm coil This version allows a very wide sweep width approx 3m 10ft and deep penetration into all types of bottom material AQIB Compact Underwater Metal Detector User Manual AQIB ACCESSORIES AQ 4 062 Aquapulse Bonephone with Extending Flexible Cable Fully waterproof earphone utilises Ikelite underwater connector to
16. he Nut amp Bolt you removed from Lower Shaft in step 2 AQIB Compact Underwater Metal Detector User Manual 5 Now slide the opposite end of the Lower Shaft inside the Arm Saver as shown below and secure with the Nut and Bolt from the Arm Saver Note There are three possible securing positions on the Arm Saver so that you can select the one which is more comfortable for you and most suitable for the job you are carrying out 6 The top of the Arm Saver is designed to secure the operators arm and the AQIB Module with the Velcro straps supplied The module is placed so that the Velcro on the body mates with the Velcro in the lower cup shown uppermost below the Velcro on the strap then allows the strap to secure the module firmly in place 7 When assembled the upper stem and module should appear as in the image below this also shows the upper cup located and secured to the operators arm This arrangement works equally well on land or for underwater searching 10 AQIB Compact Underwater Metal Detector User Manual 8 The image below shows the upper and lower stems attached to the 38cm loop amp fitted the AQIB control module 9 With all the AQIB configurations the control unit can optionally be used with a waist belt as shown below the belt is fitted with a quick release cam buckle for securing the belt in place The method of assembly is similar to section 6 above First the module Velcro is engaged with the
17. loop is being used the control unit can be fitted to the lower cup of the armsaver section Other options include strapping to the upper arm clipping to any suitable position on the diver or attached to a container that may be used for collecting detected items When the armsaver is being used one of the small straps should retain the control unit whilst the other should act as a brace for the forearm in the upper cup AQIB Compact Underwater Metal Detector User Manual The above image shows the control module attached to the armsaver 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 Diver prepared for EOD survey using AQIB Compact 20cm Harness mounted AQIB Compact Underwater Metal Detector User Manual Wi poeta PEPPEN d 3 Dive to the area of seabed to be searched 4 Switch the unit on one click to the MIN position and rotate the SET AUDIO control to achieve the audio threshold point keeping the search loop at arms length and up from the seabed this avoids detecting any metallic part of the personal diving equipment or any buried items while the audio threshold 1s set 5 Begin your search by scanning the loop from side to side close to the seabed in a fanning action Avoiding passing the loop close to regulator air
18. made to a resolution of tenths of a volt l With nothing connected to the detector turn the detector ON one click clockwise With the detector placed so the printing on the top label is in normal orientation place the positive lead of the voltmeter on the TOP pin of the Loop connector See diagram Place the negative lead of the voltmeter on the TOP pin of the Phone Charge connector See diagram You should now be able to read the voltage of your battery pack A fully charged new battery pack should initially read over 13 volts This might decrease slightly as the pack gets older As the detector is used the 12 AQIB Compact Underwater Metal Detector PFa Ji FL User Manual Po Ge 7 fasca voltage will drop gradually but performance is not affected until the voltage drops below 9 6 volts Once the voltage falls below 9 6 volts it will drop at an accelerated rate The detector will not function correctly 1f it goes down around 8 volts or lower If you measure the voltage and it is near or below 9 6 volts it s time to re charge the battery pack d ss O AQis MADE IN U K LOOP PHONE CE CHARGE serauio Q Battery Test Points shown on the Standard AQIB Checking Battery Pack Performance Note Ifyou feel you are not getting proper performance from your battery pack you should perform this battery pack test The recommended procedure is as follows 1 0 Connect an Aquapulse Loop or Probe to
19. t perform dismally underwater the PI system provides a very powerful means of detection for every form of ferrous or non ferrous metallic item The AQUAPULSE is a modular system with a range of interchangeable detection heads that allows for a flexible approach to detection under various underwater conditions NEW AQ1B Compact In July of 2009 the new MINI version of the AQIB was introduced this replaced the previous AQIB version The AQ1IB Compact is the same detector technology as in the past but with some improvements e New smaller lighter case e Circuit upgrades e Smaller lighter NiMH battery pack can be charged any time without worrying about the memory effect same or better battery operation time e New Off Reject Switch now a 6 position switch SEE IMPORTANT NOTES IN SECTION INITIAL TESTING ITEM 9 A standard AQUAPULSE 1B Compact AQIB Compact kit consists of the following items Sealed electronic unit Bone conductor earphone or Land headphones with cable and plug Search Loop and shaft or Search probe with cable and plug Mains Battery charger 100 250v with AC charging lead Harness and belt with quick release buckle Operating instructions ate a AQIB Compact Underwater Metal Detector User Manual INTERNATIONAL The Aquapulse 1B Compact underwater metal detector is a precision built instrument using the latest pulse induction techniques and has been designed for both eas
20. tanks or weightbelt as these or any other metal object on the diver will give responses 6 If too much signal is obtained from the seawater such that the SET AUDIO control will not achieve the desired threshold turn the REJECT control one click at a time clockwise until the SET AUDIO control comes back into range NOTE 1 There are only 5 REJECT positions from the OFF position you can only turn the REJECT switch 5 clicks clockwise Do NOT attempt to turn the switch past the 5 position or permanent damage will occur NOTE 2 Different water depths will make a small difference to the threshold Setting this can be readjusted by the control knob This depth related effect does notoccur in fresh water Detection amp Interpretation Detection of buried metal is indicated by an increase in the audible signal when the detector head is passed over a localised area of the seabed with maximum response being obtained when the head is centred over the object The shallower the object the more pronounced the peak response will be whereas deeper objects tend to give a more gradual change in response as the head is panned across the seabed The changes that occur in the observed response are very non linear with proximity and in fact increase by a factor of 64 times each time the distance between the object and the sense head is halved this ultimately leads to dramatic overload in the sampling system In such cases it is a
21. ve Bonephone Aquapulse Headphones gt Try using an alternative Loop or a known good Aquapulse Probe 3 Check that both the Sensing Loop and Bonephone are in good condition Check by substitution if possible or by monitoring the nominal resistance of both items 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 Aquapulse Resistance Chart below Symptom Erratic Performance from AQIB Compact Module 1 First check the resistance as in the above table 2 Check that the metallic contacts of the bulkhead connectors are clean 3 Check that the metallic contacts of the Sense loop 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 4 Check that the cable to the Sense Loop has not been damaged causing water ingress 5 Check that the male connector seals are in place and clean 15 AQIB Compact Underwater Metal Detector User Manual AQ 1 030 Standard 25cm 10 Kit Consists of Control Module Quick Release Harness Bonephone Battery Charger amp 20cm 8 Loop with Extendable Handle This version has a slightly more powerful sensing loop than the 20cm kit and lon
22. wed behind a boat or simply lowered down for drift searching This system of operation allows metallic contact areas to be located prior to deploying a diver This item is indispensable for extended shallow water searches in low visibility conditions 19 Aquascan International Limited AQ 3 003 38cm 15 Loop Fully Waterproof large search loop complete with Ikelite underwater connector This loop gives the largest sensing range and supplied with the Arm saver kit to give good sweep range underwater and a good balanced unit for land use AQ 04 001 Extending Handle Used mainly in conjunction with the 25cm Loop fully extendable between 45cm amp 87cm AQIB Compact Underwater Metal Detector User Manual AQ 2 010 AQ1B Compact Control Module The main item of the AQ1B Compact detector kit This is a fully sealed electronic control module with a diver depth rating of 100m tested and proven by divers beyond this depth The control unit features a multi turn adjustment for audio detection threshold The primary control is the rotary on off power switch which also provides an element of rejection as it is rotated clock wise this is primarily intended for the rejection of ring pulls during beach search applications or to accommodate excessive background signals from very high salinity water In addition to the electronics the control unit houses the NiMH rechargeable battery pack AQ 4
Download Pdf Manuals
Related Search