DRS-100 - Ocean Technology Systems
Contents
1. a 04 r m lt oD Figure 2 Battery Compartment Layout Key Battery interconnection cable 22 Hex nut 8 32 battery bracket mounting Battery jumper 23 Battery bracket Housing 24 Battery Housing o ring SECTION 4 MAINTENANCE AND TROUBLESHOOTING Solidly designed and ruggedly constructed the DRS 100 Diver Recall Hydrophone System should provide long trouble free operation if basic preventive maintenance is performed regularly according to the instructions in this section Information for troubleshooting is also provided in the event a malfunction does occur 4 1 GENERAL This section provides information for maintenance functional checks and adjust ments of the DRS 100 Diver Recall System The preventive maintenance portion Section 4 2 serves as a guide in proper maintenance of the DRS 100 to prolong its service life and avoid performance failures The troubleshooting portion Section 4 3 provides the necessary information and procedures for solving basic problems that may arise and seeking further assistance if a service technician is needed Re moval and replacement procedures are provided for various parts to assist during maintenance and troubleshooting A list of recommended spare parts appears in the Appendix at the end of the manual For service personnel or technically inclined users documentation for more advanced troubleshooting of t2. PWR ON LED s 3 illumination if the bat tery condition is good This control adjusts the volume to the divers Rotation clockwise increases and counterclockwise decreases the volume Generally three fourths of a turn clockwise is the best position Full counterclockwise rotation past the detent turns the DRS 100 off 2 1 2 2 SECTION 2 SETUP AND OPERATION SETUP Set the DRS 100 Diver Recall Hydrophone System on a flat surface where you will use it with the carrying handle facing the user Open the housing by pulling up on the clamps located on either side of the carrying handle and raise the lid Fully close the relief valve Fig 1 5 on the panel by rotating it clockwise If you will use an external power source connect its banana plugs to the EXT PWR CHQG jack Fig 1 7 on the DRS 100 panel being careful to observe polarity match the red and black Activate the external power source if necessary but leave the DRS 100 power off If you will use the internal bat teries proceed to Section 3 Batteries and Charging p 7 before continuing Remove the protective cover from the transducer receptacle Fig 1 6 Locate the connector on the transducer underwater speaker end of the trans ducer cable Insert the transducer connector into the transducer receptacle on the panel and rotate the ring until a good connection is obtained Strain relieve the transducer cable by securing a rope to the strain reli
3. The source must present a DC path of at least 15 Kohms to ensure the transmit circuit activates 2 2 3 RECORDING To record audio signal received from the hydrophone or that you transmit into the water insert a male RCA plug into the record out jack Fig 1 1 Connect the other end to your recorder s microphone input SECTION 3 BATTERIES AND CHARGING The DRS 100 Diver Recall System is equipped with rechargeable maintenance free batteries two 12 volt batteries wired in series and comes with an RCS 30 smart charger It is not necessary to remove the batteries to recharge the system Note The battery you receive may have upgraded specifications from what is stated in this manual Due to advancing battery technologies we continually upgrade our batteries and chargers Contact OTS p 13 or your local OTS dealer to find out the latest available battery and charger The DRS 100 can be powered by an external 24 VDC 7 amp power source the EXT 24 external power supply sold separately is available to convert 115 VAC to 24 VDC or by its internal rechargeable gel cell batteries If an external 24 VDC power supply is used the internal batteries will partially recharge The charging source must provide at least 28 volts 500 mA for batteries to come to a fully charged condition When the low battery LED Fig 1 2 begins to flash red the battery voltage has decreased to 20 volts Although the DRS 100 can operate with as little as 12 vol
4. control module with a housing that is sturdy resistant to marine corrosion o ring sealed and constructed of lightweight materials A transducer attached to 25 feet of cable An HSM 10 hand held microphone with a push to talk button Two maintenance free rechargeable batteries An RCS 30 smart charger Before operating or charging the DRS 100 Diver Recall System read this entire manual In addition to the instructions for use and maintenance of the system there are some important safety issues all users must be familiar with before operation Should you have any questions please contact your local Ocean Technology Sys tems OTS dealer or feel free to contact OTS directly see p 13 for OTS contact information 1 1 SPECIFICATIONS Input voltage Input current Idle current Audio power PEP Frequency response Recall oscillation rate Beam pattern Transducer cable Transducer Fuse type Transducer Low battery LED Battery type Battery life Microphone type Size Weight Battery charging time RCS 30 smart charger Peak envelope power 24 VDC 7 amps maximum 75 mA Recall amp tone 132 watts Voice 132 watts 500 to 4000 Hz 5Hz Omnidirectional 25 feet in length Anodized aluminum 6 amps slow blow use slow blow fuse only Size 9 in diameter 6 in axial length Weight 13 lbs in air 2 lbs in water Flashes at approximately 20 volts Two 12 volt 2 6 amp hour maintenance
5. free re chargeable cells in series 5 hours at 2096 duty cycle Recall Tone mode 3 hours nominal when using auxiliary input medium volume Push to talk front panel optional hand held with PTT available Depth 10 6 in including handle and hinges Length 14 in Height 4 7 in without cover 6 5 in with cover 15 lbs 2 3 hours the RCS 30 automatically switches to maintenance mode when the battery is fully charged indicated by the LED turning green 90 to 260 VAC input 24 VDC 1300 mA 50 60 Hz output c DRS 100 DIVER RECALL SYSTEM e HYDROPHONE XDUCER TAVE 9 HIE 1 2 Figure 1 Features of the DRS 100B FEATURES AND FUNCTIONS Refer to Figure 1 Terms in all capital letters correspond to the labels on the DRS 100 panel 1 REC OUT This female RCA jack allows topside personnel to record under water sounds Use a male RCA plug and any recorder LOW BATT This LED will illuminate red flashing when the battery level reaches approximately 20 volts The unit can operate with as little as 12 volts Note Recharge the batteries as soon as possible after the low battery light illuminates PWR ON This green LED will illuminate when power is on TONE RECALL This LED illuminates red whe
6. n 606014 002 Australian power cord for RCS 30 p n 606014 003 12 Undersea Systems International Inc dba Ocean Technology Systems LIMITED WARRANTY Ocean Technology Systems DRS 100 mod B 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 Ocean Technology Systems 3133 West Harvard Street Santa Ana California 92704 USA Toll Free 800 550 1984 Telephone 714 754 7848 Fax 714 966 1639 E mail ots otscomm com Web www otscomm com You can now register your product online at the OTS Web site Just visit http www otscomm com register html Copyright 1994 2011 by Undersea Systems International Inc dba Ocean Technology Systems All rights reserved Specifications are subject to change without prior notice 13
7. power supply and connection 11 Symptom Probable Cause Fuse F1 open Remed Replace fuse Batteries do not charge Batteries defective Charger defective Battery terminals loose Replace batteries Replace charger Check connections tighten if necessary No microphone input Microphone defective Microphone connector defective Replace microphone Replace connector No transmission or reception Defective U W speaker con nector or cable Loose or disconnected Molex connector to output transformer Output transformer defective Panel speaker defective Replace speaker or speaker connector or repair cable Reconnect Replace transformer Replace panel speaker APPENDIX SPARE PARTS LL 98 transducer with strain relief eyelet p n 900189 000 HSM 10 deluxe noise cancelling hand held microphone p n 910041 000 Line in adapter cable p n 914024 000 optional RCS 30 smart charger with connector p n 910363 000 thru 003 RB 30 two maintenance free 12 volt batteries p n 900041 000 Fuse 6 1 4 amps slow blow p n F007 Housing Underwater Kinetics p n 134033 001 Housing o ring included with housing Hex nut 8 32 for mounting of battery bracket p n 246007 000 Battery bracket p n 136007 000 Battery interconnection cable p n 914023 000 US power cord for RCS 30 p n 606014 000 European power cord for RCS 30 p n 606014 001 UK power cord for RCS 30 p
8. Undersea Systems International Inc dba OCEAN TECHNOLOGY SYSTEMS OL ECHN OGY Sy DIVER RECALL SYSTEM DRS 100 MOD B USER S MANUAL e e A DRS 100 DIVER RECALL SYSTEM _ LINE i D REC OUT TRANSMIT Technology in Depth IMPORTANT SAFETY NOTICE It is absolutely essential that all users are properly trained and equipped and fully understand this user s manual before attempting to use the DRS 100 mod B Diver Recall Hydrophone System Read and fully understand the battery charging section of this manual before you attempt to charge or operate the DRS 100 While the DRS 100 provides divers with good underwater communications it does not change or eliminate the potential hazards of diving NOTE This manual and the information contained herein are provided for use as a mainte nance and operation guide No license or rights to manufacture reproduce and or sell either the manual or the articles described herein are given Ocean Technology Systems reserves the right to change specifications without notice 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 1994 2011 by Undersea Systems International Inc dba Ocean Technology Systems All rights reserved Specifications are subject
9. during the charging cycle To mini mize gas build up open the pressure relief valve Fig 1 5 on the panel while recharging the batteries Do not release the pressure relief valve and turn on the DRS 100 until a minimum of 15 minutes have elapsed after the charging cycle has been completed and the charger is disconnected from the front panel Failure to follow this procedure may result in damage to the unit or serious injuries due to an explosion Never use the RCS 30 smart charger to charge only one 12 volt battery Damage or injury may occur After a charging period remove the RCS 30 smart charger from the power source Disconnect the red and black charging plugs from the front panel After a resting period of at least 15 minutes rotate the panel s relief valve clockwise to its closed position Note The RCS 30 smart charger cannot be used as an external power supply It does not supply enough current 32 BATTERY REMOVAL REPLACEMENT Ifthe batteries no longer can hold a charge you will need to replace them with the Ocean Technology Systems RB 30 battery kit Follow this procedure to remove and replace the batteries Remove the ten front panel screws Fig 1 10 Gently remove the control panel by pulling on the handles Fig 1 13 Disconnect the panel s connectors from P8 P10 P11 P12 and P13 of the circuit board Remove the battery jumper Fig 2 19 and the interconnection cable 18 from the batte
10. ef clip on the transducer Additionally tape the rope about every 12 inches to the transducer cable with all of the strain on the rope Lower the rope secured to the transducer into the water and secure the rope to a solid object above the surface Note Never lower the transducer into the water without a rope to relieve the strain or damage may occur The transducer cable alone will not support the weight of the transducer Do not lower the transducer deeper than 25 feet OPERATION 2 2 1 POWER AND VOLUME CONTROL To activate the unit s power rotate the To Divers transmit volume control Fig 1 17 clockwise The green PWR ON LED Fig 1 3 should illuminate To adjust the hydrophone listening volume turn the hydrophone volume control clockwise rotation increases the volume The hydrophone is listening as soon as you turn on the DRS 100 If you do not want to listen to the front panel speaker turn the volume down 2 2 2 TRANSMISSION 2 2 2 1 Tone Recall Mode For tone transmission move the TONE RECALL switch Fig 1 14 either right for intermittent tone or left for continuous tone The tone recall LED Fig 1 4 illuminates green when the DRS 100 is in intermittent tone mode and red when in continuous tone mode Note The volume control knobs do not affect the volume when using the tone recall feature Transmit volume control is used to control the volume only when in PTT or hand held micro
11. he DRS 100 is avail able from Ocean Technology Systems see p 13 for contact information 4 2 PREVENTIVE MAINTENANCE The DRS 100 system must be maintained properly for trouble free operation 4 2 1 CHECK PRIOR TO EVERY DIVE Perform the following checks on the DRS 100 before every dive Examine the DRS 100 unit checking for any damage to the exterior 2 Open the lid and check for any damage to controls or connectors 3 Check the connectors for bent or corroded pins 4 Check the microphone and transducer cables for cuts and abrasions 5 Ifthe low battery LED is flashing charge the unit prior to use Section 3 1 p 7 If the batteries do not charge replace them Section 3 2 p 8 4 2 2 MAINTENANCE FOLLOWING THE DIVE After each dive the following preventive maintenance should be performed 1 Charge the batteries Section 3 1 p 7 if the voltage is low the low battery LED is flashing 2 Disconnect all connectors from the front panel 10 3 After use remove any salt spray or moisture accumulated on the front panel use a damp cloth with a mild detergent solution 4 Remove any debris from the o ring located on the inside of the cover Fig 2 21 5 Rinse the transducer in fresh clean water and dry it before storage 6 Keep the hand held microphone as dry as possible if applicable 7 Keep the bulkhead connector free of debris and moisture 8 Lubricate the seals with Zip Slip silicone grease or e
12. he operator to transmit an external audio source into the water e g cassette recordings or inputs from a master public address system Front Panel Speaker The front panel speaker is used to listen to any un derwater sounds within range e g biological or from human activity The hydrophone volume control 8 adjusts the listening volume Handle You will find two handles on the front panel Use these to remove the front panel after the ten front panel screws 10 are removed TONE RECALL When this toggle switch is pushed and held to the left the unit will emit a continuous tone while the Tone Recall LED 4 illuminates red Push and hold the toggle switch to the right for the DRS 100 to emit an intermittent tone indicated by green illumination of the same LED MIC This jack is used to connect an HSM 10 hand held microphone to the unit Voice transmission can now take place via the hand held microphone Without the hand held microphone voice transmission can be accomplished via the front panel speaker 12 and PTT button 16 PTT This is a push to talk PTT control When the DRS 100 s power is on the user can depress and hold the PTT button and talk into the front panel speaker His voice will be received by all divers within range The volume to the divers is controlled via the transmitter volume control 17 To Divers transmit VOLUME Clockwise rotation past the detent turns the unit on indicated by the green
13. n the continuous tone is utilized and green when the intermittent tone is activated Panel RELIEF VALVE Open this valve when charging the internal recharge able batteries It must be completely open counterclockwise when charging see charging instructions and closed during normal operation to prevent water from entering the housing Also be sure to open the valve to maintain equalized pressure if the DRS 100 will undergo airline shipment XDUCER This jack is used to connect the underwater transducer to the DRS 100 unit 10 11 12 13 14 15 16 17 EXT PWR CHG This jack is used to charge the internal batteries or to use the optional EXT 24 external power supply p n 910091 000 115 volts AC input to 24 volts DC output red black Hydrophone VOLUME This knob controls volume to the front panel speaker All sound in the water within range will be amplified through this speaker Rotation clockwise increases and counterclockwise decreases listening vol ume to the front panel speaker Housing Relief Valve This valve automatically equalizes internal pressure during air travel Front Panel Screws There are ten Phillips screws located around the front panel Each screw has its own o ring seal When removing the screws and front panel ensure that you do not lose or damage the o rings Tighten the screws only enough to ensure the panel is sealed against its o ring LINE IN This RCA jack allows t
14. phone mode Tone recall mode automatically puts full power to the transducer 2 2 2 2 Voice Communication For voice communication to divers or swimmers set the transmitter volume Fig 1 17 to about half volume If you will use a hand held microphone e g the HSM 10 with a push to talk PTT switch insert the microphone connector into the jack Fig 1 15 depress the PTT button and talk into the microphone Otherwise press and hold the PTT switch Fig 1 16 and talk into the front panel speaker Fig 1 12 To increase the transmission volume rotate the transmit volume control Fig 1 17 clockwise Release the PTT button when you have finished transmitting 2 2 2 3 External Audio To transmit audio from an external source connect an RCA plug leading from the source to the DRS 100 s line in jack Fig 1 11 Note When a standard line out source is connected to the line in jack the transmit ter activates If your sound source has no DC path to ground DRS 100 chassis ground via the output circuit of your device you may need an adapter OTS p n 914024 000 Additionally be careful not to allow salts water minerals etc to build up around this jack because they could cause the transmitter to activate due to electrical conduction at the jack The line input connection will accommodate unbalanced line signals 2 V at 600 ohms Any source level similar to this is suitable for driving the DRS 100 line input
15. quivalent If the seals show wear or damage replace them instead 4 3 TROUBLESHOOTING This section contains instructions for troubleshooting the DRS 100 Diver Recall System The information found in Section 2 Setup and Operation p 5 should be used to supplement the information in this section Refer to Table 1 for instructions for troubleshooting basic problems with your DRS 100 If the problem you are experiencing is not mentioned in the table or if you have tried the suggested solutions and the problem persists contact Ocean Technology Systems see contact information on p 13 for technical support or arrangements to send in the unit for repair 4 4 REMOVAL OR REPLACEMENT OF PARTS 4 4 1 ELECTRONICS CHASSIS REMOVAL To remove the electronics chassis from the housing remove the ten panel screws Carefully pull the electron ics chassis straight out taking care not to catch any wiring on the edge of the box or to place undue stress on the circuit board connectors or cables 4 4 2 BATTERY REPLACEMENT If the battery pack fails and requires replacement remove the battery container and replace the batteries Section 3 2 p 8 4 4 3 FUSE REPLACEMENT If the fuse blows replace it with a 6 0 amp type MDL 6 slow blow fuse This fuse is located on the internal board TABLE 1 Troubleshooting Symptom Probable Cause Remed No power to unit Batteries exhausted Recharge batteries Failure of external DC Check DC power source
16. ries Remove all the hex nuts Fig 2 22 from the battery brackets Remove the battery bracket Fig 2 23 from the batteries Remove the batteries Fig 2 24 Slide the new batteries into place Reinstall the battery bracket and secure it with the hex nuts Connect one end of the battery jumper Fig 2 19 to a terminal marked BLACK on one of the new Danes 11 12 13 14 15 16 Connect the other end of the battery jumper to the red terminal of the other battery Connect one end of the interconnection cable Fig 2 18 to the remaining black and red terminals Reconnect J8 J10 J11 J12 and J13 to the circuit board assembly J10 J11 J12 and J13 are labeled and should be connected to the corresponding plugs on the circuit board P10 P11 etc J8 is probably not labeled but is the one remaining connector of the wiring harness that attaches to the circuit board it should be connected to P8 Check the o ring Fig 2 21 on the inside of the housing for debris or dam age Replace it if necessary Reinstall the front panel and the ten front panel screws just tightly enough to make a good seal Fully charge the batteries Section 3 1 p 7
17. to change without prior notice 506016 000 rev M TABLE OF CONTENTS Section 1 Introduction eese nennen 1 1 1 SPECINCAONS asie reen Sere E eei ee eee E 2 1 2 Features and Functions ccccccecceescesceesecseeceeceeeeeceeeeaeeeceseeneeeaeens 3 Section 2 Setup and Operation eese 5 2 1 NIE S 5 2 2 OPEL at OM i cuento creed te ne eet voee eere eH 5 2 21 Power and Volume Control sss 5 2 2 2 Transmission RERO UN ERE RR 6 22 2 Tone Recall Mode rcr 6 2 2 2 2 Voice Communication eee 6 2 2 2 3 External Audio sess 6 2 23 Recordings ateouedeiaeiibsmin indere 6 Section 3 Batteries and Charging eee 7 3 1 Battery Chareitig Procedure scossi errie REED PUR REA YES DISEREE 7 3 2 Battery Removal Replacement sse 8 Section 4 Maintenance and Troubleshooting ss 10 4 1 Generalis ii es es cee eed eia eie red 10 4 2 Preventive Mainten tiCe sic rne dete ree ree Re EUER E nests 10 4 2 1 Check Prior to Every Dive ssisseisssiissiseiserstesisikoreeisivse 10 4 2 2 Maintenance Following the Dive sess 10 4 3 Troubleshooting sessie n eerte erede e E re 11 4 4 Removal or Replacement of Parts sss 11 4 4 1 Electronics Chassis Removal eee 11 4 4 2 Ba
18. ts we recommend that you recharge the batteries Section 3 1 as soon as possible after the LED starts to illuminate If the batteries no longer hold a charge replace them Section 3 2 3 1 BATTERY CHARGING PROCEDURE WARNING To avoid damage or injury read and follow all the instructions below before attempting to recharge the batteries If you are going to operate the DRS 100 outside the USA you will need to purchase the appropriate power cord for the region of operation Power cords are available for Australia 606014 003 UK 606014 002 and Europe 606014 001 1 Open the cover 2 Turn the relief valve Fig 1 5 fully counterclockwise to open it 3 Locate the 24 volt EXT PWR CHQG jack Fig 1 7 and insert the plugs red and black from the RCS 30 smart charger Note Be certain that black is connected to black and red to red If they are reversed no harm will occur to the DRS 100 but the batteries will not charge 4 Connect the RCS 30 smart charger to any power source providing between 90 and 260 volts AC 50 or 60 Hz 5 The red LED on top of the battery charger should illuminate to indicate the charger is properly connected The charger may be disconnected when the 7 LED turns green indicating a full charge or may be left connected indefinitely as the charger automatically switches to the maintenance charge mode IMPORTANT SAFETY WARNING NOTES Batteries can excrete hydrogen gasses
19. ttery Replacement sse 11 44 3 Fuse Replacement scenic memes 11 Appendix Spare Parts sess enne nene 12 Limited Warranty sees enne nennen 13 Illustrations Figtire 1 Layout of the DRS 100 entere oper prep DH Pee 3 Figure 2 Battery Compartment Layout essseseseeeeeeee 9 Tables Table 1 Troubleshooting neret ee tte nete rece etre etre ere ed 11 SECTION 1 INTRODUCTION Thank you for choosing the Ocean Technology Systems DRS 100 mod B Diver Recall Hydrophone System With the DRS 100 you can recall free swimming divers with a solid tone intermittent tone or voice transmissions The underwater listeners need not wear any special diving equipment to hear Topside personnel can even transmit music or any other audio signal by connecting the source to the line in jack on the DRS 100 panel The DRS 100 can even be used as a hy drophone allowing the user to listen to marine biological and man made sounds present in the water These sounds can be recorded easily via the external record output jack on the front panel How do the divers hear Sound is transmitted through the water omnidirectionally by an underwater transducer The typical range is 500 meters but depends on the biological ambient noise level Divers within range listen using only their ears no electronic equipment is necessary The DRS 100 Diver Recall System provides the following Aself contained
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