Aquacom® MK-7 Buddy-Line User Guide
Contents
1. MK 7 BUDDY LINE Two Diver Intercom User Guide Technology in Depth NOTICE This manual and the information contained herein are provided for use as a maintenance and operation guide No license or rights to manufacture produce and or sell either the manual or articles described herein are given Undersea Systems International Inc dba Ocean Technology Systems hereinafter referred to as OTS reserves the right to change specifications without notice It is recommended that all users read and fully understand this manual before using the MK 7 Buddy Line All statements technical information and recommendations herein are based on tests we believe to be reliable but the accuracy or completeness thereof is not guaranteed and the following is made in lieu of all warranties expressed or implied including the implied warranties of merchantability and fitness for purpose Seller s and Manufacturer s only obligation shall be to replace such quantity of the product proved to be defective Before using the user shall determine the suitability of the product for intended use and the user assumes all risk and liability whatsoever in connection therewith Neither Seller nor Manufacturer shall be liable either in tort or in contract for any loss or damage direct incidental or consequential arising from the use of or the inability to use the product No statement or recommendation not contained herein shall have any for2. means Stop Going down During ascent two pulls mean You a 2 Pulls have come up too far go 1 Pull ee a you back down until we stop i you Move directly away from the a 6 tender if given slack move 3 Pulls Stand by to come up 2 Pulls towatd the tender if strain is taken on the life line 4 Pulls Come up 3 Pulls Tace JOU umbilical aeea strain move right 2 1 Pulls I aer ana or Talk to 4 Pulls Face your umbilical take a me strain move left 3 2 Pulls Ventilate 4 3 Pulls Circulate From Diver to Tender Searching Signals With Circling Line T am all right When descending one pull means 1 Pull Stop or I am on the 7Pulls Same bottom 2 Pulls Lower or Give me slack 1 Pull Same 3 Pulls Take up my slack 2 Pulls Move away from the weight 4 Pulls Haul me up 3 Pulls Face the weight and go right 2 1 Pulls a ee or Talk io 4 Pulls Face the weight and go left me 3 2 Pulls More air 4 3 Pulls Less air Special Signals from the Diver Emergency Signals from the Diver Pea vase soud T am fouled and 1 2 3 Pulls e Bs Square 2 2 2 Pulls need the assistance mark of another diver 5 Pulls Send me a line 3 3 3 Pulls l ati fouled but 5 can clear myself 2 1 2 Pulls Send me a slate 4 4 4 Pulls Haul S SBS imm
3. The only way to solve this problem is to change to a shielded ComRope A strong but You are speaking Speak with more moderate volume distorted signal too loudly into the slowly and distinctly is received microphone Your volume controls are set at too high a level Slowly adjust your volumes as to not overdrive the system 11 SECTION 7 MAINTENANCE The MK 7 Buddy Line is virtually maintenance free and should give you great service during the life of the unit The following are recommended service tasks iF 2 Try to keep the headset with boom microphone as dry as possible Do not store the ComRope in a sealed container without drying it first It will grow mold if not dry If the ComRope was used in salt water soak it in freshwater for about five minutes before drying If salt water gets onto the headset and or MK 7 wipe it with a clean cloth and freshwater Warm water and a mild soap solution can be used Wipe it off with freshwater before drying Disconnect all connectors when storing Lightly lubricate the Hi USE connector with a high grade silicone grease If the MK 7 is not going to be used for a long period of time the batteries should be removed PLEASE NOTE Although the MK 7 Buddy Line is a ruggedly constructed piece of your diving gear it should be treated like an electronic piece of equipment CAUTION Use any standard safe entry into the water but be awar
4. connectors The diver then should proceed directly to the surface and reestablish communications see the notes on page 8 The tender should ensure the ComRope on his end is also strain relieved in some manner This will prevent the diver or topside tender from pulling on the connections made on the MK 7 Buddy Line electronics module This End Towards D R Tender mg Carabiner Hand Hold 10 feet from Connector o FIGURE 3 Recommended Setup of the Diver ComRope 7 4 2 7 Afterall connections are made you can test the system Have the diver s don the full face mask The tender will don the headset with boom microphone The boom microphone should be positioned 1 4 inch from the tender s lips keep the microphone as dry as possible The MK 7 Buddy Line will power up the moment the headset and boom microphone are connected There is no on off switch As long as the headset is plugged in the MK 7 will be on and drawing power The tender controls all volumes The volume control labeled Tender controls the volume of the tender s voice to both divers The individual volume controls labeled Divers control what the tender hears from each diver The tender should adjust all volumes a little at a time until everyone can hear well Rotating any control clockwise brings the volume up Counterclockwise rotation brings the volume down NOTE 1 Ifthe diver is set up properly the t
5. and talk as well in the same manner The volume of the tender and diver s is controlled by separate volume controls on the outside of the upper electronics module IMPORTANT SAFETY NOTES It is extremely important that the divers are dressed out in a manner that will strain relieve the ComRope Commercial dive schools typically instruct students to have the ComRope tethered to the diver s harness or buoyancy compensator with a quick release If someone pulls on the ComRope and the diver loses control of the ComRope the pull is on the harness not on the diver s mask This setup prevents accidental removal of the diver s mask 3 Additionally the divers should be dressed out to allow a quick disconnect from the ComRope to allow for a situation where a diver must free himself from the ComRope In the event divers and the surface tender lose voice communications both should have in place a back up rope pull system for communication See Table 1 p 9 for the line pull system recommended by OTS 3 2 FEATURES See Figures 1 and 2 for an exploded view of the MK 7 Buddy Line system Note The ComRope can be set up for many types of diving masks and or earphone microphone assemblies If you are not sure what to order consult an OTS dealer or OTS directly for the configuration you require RIK RKY ARRS 1 Headset with boom micro
6. ba Ocean Technology Systems 3133 W Harvard St Santa Ana CA 92704 USA Telephone 714 754 7848 Toll Free 800 550 1984 Fax 714 966 1639 E mail ots otscomm com World Wide Web http www otscomm com Copyright 2014 by Undersea Systems International Inc dba Ocean Technology Systems All rights reserved
7. ce or effect unless it is in an agreement signed by officers of the Seller and Manufacturer IMPORTANT SAFETY NOTICE Please read before using product It is absolutely essential that all divers are properly trained and equipped and fully understand this user s manual before attempting to use the Aquacom MK 7 Buddy Line While the Aquacom MK 7 Buddy Line provides divers good underwater communications it does not change or eliminate the potential hazards of diving Refer to the Library page of our Web site www otscomm com for a list of any changes made to this manual since its publication Copyright 2014 by Undersea Systems International Inc dba Ocean Technology Systems All rights reserved Specifications are subject to change without prior notice P N 506018 002 A TABLE OF CONTENTS Section Title Page 1 Introducties erroneo in aiken eee Ren oa EES 1 2 SPC CiM a E E ees totvastesntstes E T N 2 3 Functions amp Fetite Seereesir adie ideas TE EES EEEE ENSE 3 Bell GPUNCHONS seser eeror tise deri renere e EEEE EEEIEE EEE 3 3 2 F atures A E E T 4 4 eien OE E A A E E E err errr cree teers 6 4 1 Setup for the Tend t ssssessssrsuiuesisuascerieriseirieekiise ssion 6 4 2 Setup for the DIVer S serescestreissrsespsresiniecrirseneuesseresnosrestrn aresta 6 5 Batterie Soeur reure areae E ENET R EE EEEE one eae 10 6 Troubleshool Neses eeren r Ene e re Ree eS e ao eean 11 7 MaintenantE srisodrrente eeeeses iten
8. e e essee TEE IEE E E EE ES 12 8 HelpMlHINtS eeaeee e eaer rner Gabber ag E AEn ies 13 Warranty Informati Otis c scsceccessecsessdscxsesanese coebscusrancdeancevusseenesievtesivesdinbecnedetnates 14 Important Safety Notes ccccccccecccccesceeecsseseeeseesseceeesesneeseeesensees i 3 4 8 12 13 SECTION 1 INTRODUCTION Congratulations You have just purchased the finest state of the art hard wire intercom in the world Your new MK 7 Buddy Line two diver air intercom represents state of the art technology and innovation the choice of discriminating divers throughout the world Please take the time to read this user guide With proper care and use your OTS product will provide you with the ultimate in high quality communications and reliability The MK 7 Buddy Line is a compact self contained two diver air intercom providing clear communications between the operator and diver s The MK 7 Buddy Line offers four wire round robin or open microphone type communications This manual will cover specifications operating instructions four wire communications batteries helpful hints and warranty information These guidelines and illustrations are presented to assist you If you need additional information do not hesitate to confer with your local OTS dealer or representative If you require service contact us Undersea Systems International Inc dba Ocean Technology Systems 3133 W Harvard Street Santa Ana California 92704 USA To
9. e of the additional equipment you are wearing Because the ComRope can snag on things be aware of obstacles in the area and avoid them Make sure there is nothing in the water the diver may hit upon entry 12 SECTION 8 HELPFUL HINTS 1 All training should be conducted in a controlled environment such as a swimming pool 2 All personnel who intend to use this system should read and fully understand this manual and equipment before they use it 3 Divers should be dressed in such a manner that they can disconnect quickly from the ComRope and or earphone microphone assembly 4 The ComRopeshould be strain relieved at both the diver s and tender s ends It is extremely important the divers have the ComRope strain relieved to their harness or buoyancy compensator and not to the full face mask 5 The topside tender is in control of the rope topside ensuring that it is not getting tangled and that it is not a safety hazard for those walking about 6 The divers should be aware of their surroundings making sure their ComRopes do not become entangled 7 When a diver must enter the water by jumping into the water the following is the recommended procedure The diver should step up to the end of the pier or edge from which he is about to jump The ComRope will be connected to the diver who will have a hand hold on the ComRope The tender should lower enough slack so as to just touch the water The diver looking out toward the horizo
10. ediately All emergency signals should be answered as given except 4 4 4 9 SECTION 5 BATTERIES An SCB 1 eight cell AA battery pack Fig 1 14 on p 4 is provided with the MK 7 Buddy Line and is located in the lower housing Fig 1 16 The SCB 1 battery pack consists of an assembled SP 8 battery holder foam spacer and contact PCB Install eight AA alkaline batteries into the SCB 1 battery pack as follows 1 Locate the latches on the sides of the lower housing Fig 1 15 Pull up on the latches simultaneously 2 Separate the upper and lower modules while being careful not to damage the o ring or battery pack contacts Fig 1 12 amp 13 3 Remove the SCB 1 eight cell battery pack Fig 1 14 and install eight fresh 1 5 volt alkaline AA batteries per the diagram on the SCB 1 4 Verify that the o ring Fig 1 12 is in place lightly lubricated with a high grade silicone grease and free of debris 5 Align the SCB 1 contacts to the right when looking through front of lower housing Insert the SCB 1 battery pack into the lower housing Carefully mate the upper and lower housings together Ensure that nothing is on the o ring or mating surface 6 Connect the latches from the lower housing to the upper strikes Pull down the latches simultaneously until fully down This will spring load the upper and lower assemblies 7 Look all around the MK 7 to verify the upper and lower assemblies a
11. ender s pulling on the ComRope should pull on the diver s hand hold first If the diver does not have the hand hold the strain should go to the belt D ring not the diver s full face mask or diver s earphone microphone assembly Ensure the diver is dressed out such that no unnecessary loops can entangle him 2 Excessive volume will cause distortion and hinder communications Adjust all volumes slowly until everyone hears clearly A good rule to follow is Less volume is better than too much noise IMPORTANT SAFETY NOTES 1 The diver should be dressed in such a manner that he can disconnect from the ComRope and from the earphone microphone assembly If it becomes necessary to make an emergency ascent if the diver has to break voice communications and if line pulls cannot be established the diver should surface and establish communications as soon as possible 2 We do not recommend you rely solely on MK 7 Buddy Line voice communications A back up safeguard such as line pulls should be established and practiced Table 1 NO POWER If you connect the headset with boom microphone and the MK 7 does not power up verify the batteries are fresh new Table 1 Recommended Line Pull Signals Source U S Navy Diving Manual From Tender to Diver Searching Signals Without Circling Line Are you all right When 1 Pull diver is descending one pull 7 Pulls sok one a signals
12. ll Free 800 550 1984 e Tel 714 754 7848 Fax 714 966 1639 E mail ots otscomm com World Wide Web http www otscomm com 1 Input Voltage Input Current Idle Current Frequency Response Microphone Type Power Output Battery Type Battery Life Housing Size Weight ComCable ComRope SECTION 2 SPECIFICATIONS 12 VDC 600 mA peak 30 mA 600 Hz to 10 kHz Dynamic 2 watts RMS Eight AA alkaline batteries 12 hours normal use using eight AA alkaline batteries Injection molded high impact plastic Height 6 750 inches from bottom to top of connector Width 4 250 inches from latch to latch Depth 2 750 inches from front knob to rear buckle 1 0 pounds without batteries Up to 1200 feet SECTION 3 FUNCTIONS amp FEATURES 3 1 FUNCTIONS The MK 7 Buddy Line hard wire system utilizes the four wire approach It is a closed loop comparable to a telephone system A typical hard wire system consists of a surface intercom a headset with a boom microphone a ComRope set up for four wires shielded or true spiral four a diver microphone earphone assembly a mask microphone and some sort of diving mask with accommodations for a microphone The Interspiro Divator MKII AGA full face mask FFM is what most professionals prefer according to our statistics A hard wire system requires a physical connection i e umbilical ComRope between the listener and talker The signal travels over the com
13. munication ComRope Most hard wire intercoms can be configured for either two or four wire operations Four wire communications is defined as a duplex communication route Two wires provide the uplink signal path and two additional wires provide the downlink path Thus everyone can be online simultaneously similarly to a telephone conference call Since the diver is never cut off the diver while talking as is the case with a two wire system the four wire system is the safer of the two configurations Due to the increased efficiency achieved with a four wire system duplex and its simplicity of use the MK 7 is designed for four wire operation only The standard MK 7 configuration functions as follows After the system is powered up and all connections are properly made the tender s speech is picked up by the boom microphone located on the headset The voice is amplified by the upper electronics module and routed through the ComRope Connected to the ComRope at the diver s end is the earphone microphone assembly typically an EM OTS 2 for the new Guardian FFM or EMA for the Interspiro FFM The tender s speech is reproduced by the earphone part of the assembly When the diver speaks his voice is picked up by the mask microphone located inside the mask being used The voice is routed through the ComRope received by the upper electronic module amplified and then routed to the tender s headset Ifa second diver is on line he will hear
14. n will start his giant step As the diver steps off he turns to face the tender holding on to the ComRope When he enters the water he should be looking at the tender SAFETY NOTE If the diver plans to make a jump it is extremely important the tender does not forget to pull slack in the ComRope The ComRope should barely touch the water while still being attached to the diver This gives the diver the amount of rope necessary to hit the water with some slack If there is no slack in the rope the diver could be seriously hurt by being hung or jarred 13 Undersea Systems International Inc dba Ocean Technology Systems LIMITED WARRANTY The Aquacom MK 7 Buddy Line is fully warranted against defects in materials and workmanship for a period of one year from the time of purchase Our obligation under this warranty is limited to the replacement of any part or parts that prove to our satisfaction to have been defective and that have not been misused or carelessly handled Labor is warranted for one year from time of purchase The complete unit and or part must be returned to our factory transportation charges prepaid We reserve the right to decline responsibility where repairs have been made or attempted by other than an Ocean Technology Systems factory trained service center or properly trained personnel In no event shall Ocean Technology Systems be liable for consequential damages Undersea Systems International Inc d
15. phone 9 Upper electronics module 2 Noise canceling boom microphone 10 Tender volume control 3 Female Amp connector 11 Diver 1 and Diver 2 volume controls 4 Record out plug male mini line level 12 Housing s large o ring 5 Small o ring 13 Battery pack contacts copper plating 6 Male Amp connector 14 Eight cell battery pack SCB 1 7 Gripper ring 15 Stainless steel latch 8 Female Amp connector for ComRope 16 Lower housing battery compartment FIGURE 1 MK 7 Buddy Line 4 1 Ear Microphone Assembly ComRope Assembly 17 Male Amp connector ComRope 18 ComRope Assembly 19 Hi USE connector goes to ComRope 20 Hi USE connector goes to diving mask 21 EMA 2 ear microphone assembly for AGA FIGURE 2 ComRope amp EMA 2 assemblies SECTION 4 OPERATION Before operating the MK 7 make certain the batteries are fresh see Section 5 Batteries Ensure that all o rings are in place and free of debris or foreign matter Verify that all connections are securely fastened Ensure the divers are dressed in such a manner that the umbilical ComRope will not snag These procedures should be performed before each dive After you have completed the above steps proceed as follows 4 1 4 1 4 SETUP FOR THE TENDER Place the headset with boom microphone on your head so the two earphones are comfortably over your ears and the boom microphone is within 1 4 inch of your li
16. ppear evenly attached with no high spots 10 SECTION 6 TROUBLESHOOTING Should you encounter a problem with the MK 7 Buddy Line follow the remedies suggested in Table 2 Table 2 Problem Probable Cause and Remedy Problem Possible Cause Remedy Corrosion Failure to wash and Remove salt water residue or corrosion buildup on the lubricate connectors from the unit by wiping it with a cloth connectors after use in salt water saturated in warm freshwater use detergent if necessary Periodically check the connectors to ensure they are clean and lightly lubricated with a high grade silicone grease Poor or no Batteries are defective Replace alkaline AA batteries with fresh communications or dead ones Connectors are not Clean and check all connectors Replace properly connected or damaged ones are damaged Headset with boom Connect headset unit should power up microphone is not plugged in Diver s cannot hear Check topside microphone and make topside but topside can sure the tender volume is turned on and hear divers the microphone is about 1 4 inch from the tender s lips Diver s can hear Check all connections Check the diver s topside but topside microphone Verify the diver s volume cannot hear the divers controls are turned up Tender and divers hear This happens if you are using an light music over the unshielded umbilical and are close to intercom a transmitting station
17. ps Connect the headset s Amp connector to the upper electronics module s Amp connector Fig 1 3 amp 6 Locate the Amp connector on the ComRope and mate it to the Amp connector located on the top of the electronics module Fig 1 8 and Fig 2 17 If there is a second diver do the same for his connection Secure the MK 7 to your belt or wherever is most comfortable by using the belt clip located on the back of the upper module Note We recommend that the MK 7 main module have some sort of strain relief at the tender s end to keep the diver and or ComRope from putting excess strain on the connectors Excess strain on the connectors would cause damage to the MK 7 and or loss of communications 4 2 4 2 1 4 2 2 SETUP FOR THE DIVER S Although the MK 7 Buddy Line can be used with various full face or mouth masks the mask most commonly chosen is the Interspiro Divator MKII AGA full face mask FFM The following are the setup procedures if you have an AGA FFM You should have already connected the headset and ComRopes if you are following this manual see Section 4 1 Setup for the Tender We are also assuming you ordered and have the ComRope set up for four wire communications with a male Amp connector on one end and a Hi USE connector on the other end The AGA FFM should already have the EMA 2 earphone microphone assembly installed If not install it per the installation instruction sheet provided wi
18. th the EMA 2 4 2 3 4 2 4 4 2 5 4 2 6 Locate the Hi USE connector on the ComRope and connect it to the Hi USE connector on the EMA 2 Fig 2 19 amp 20 Ensure the Hi USE connectors are free of debris and lightly lubricated with a high grade silicone grease Strain relieve the ComRope in two places on the diver s end The first point should have some sort of D ring heavily taped or tied about 4 feet from the Hi USE connector This D ring will be clipped onto the diver s harness or buoyancy compensator via a carabiner or some good quality quick disconnector This connection will help prevent the ComRope from pulling on the diver s full face mask Figure 3 The diver should hand hold the ComRope about 10 feet from the Hi USE connector Figure 3 The diver will now be secured to his harness or buoyancy compensator and have a hand hold during the dive The diver should have control of the ComRope throughout the dive He should feel what is going on giving topside directions when slack needs to be taken up or when more rope needs to be paid out If the diver lets go of the hand hold the carabiner D ring combination will absorb the tension In the event the diver must break loose of the ComRope totally i e in an emergency the diver should let go of the ComRope hand hold and unsnap the device holding the D ring The diver then should let topside know what is going on before he detaches the Hi USE
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