GSM DC COMMUNICATION UNIT OWNER`S MANUAL
Contents
1. WARNINGS CAUTIONS NOTES Pay special attention to information provided in warnings cautions and notes that are accompanied by these symbols A WARNING indicates a procedure or situation that if not avoided could result in serious injury or death to the user A CAUTION indicates any situation or technigue that could cause damage to the product and could subsequently result in injury to the user A NOTE is used to emphasize important points tips and reminders INTRODUCTION The GSM DC communication unit is lightweight and compact The freguencies it uses are compatible with other communication systems on the market The high guality of the product does not allow the user to ignore the problems connected with the correct use of the product and the rules for safe diving GSM DC has two special features 1 DAT mode Digital Activated Transmission 2 Possibility to talk and receive on two different freguencies Channel 1 32 768 kHz Channel 2 41 000 kHz GENERAL PRECAUTIONS AND WARNINGS Use of SCUBA eguipment by uncertified or untrained persons is dangerous and can result in serious injury or death NEVER wash any part of the communication with anything else than water DO NOT apply any type of aerosol spray on the GSM DC communication units Doing so may cause permanent damage to certain components Continue to breathe while surfacing from a dive even if you are listening to the communications unit Lung expansion2. must be returned to the outlet from which it was bought along with the warranty card The cost of transport is to be prepaid by the customer 2 Even during the guarantee period this guarantee shall not be valid where O O O Damage was caused by incorrect handling or carelessness Damage was caused by the unit falling after it was purchased Damage caused by fire earthquake floods lightning or other natural disasters pollution or electrical charges The warranty card is not produced Our name the date of purchase and the seller s name do not appear on the warranty card GSM DC Communication Unit Manual Rel 1 1 November 2010 19 MESTEL Safety s r l Via Arvigo 2 16010 Genova Italia Phone 39 010 6598 611 Fax 39 010 6598 622 E mail ocean reef oceanreefgroup com OCEAN REEF Inc 1699 La Costa Meadows Dr Suite 101 San Marcos CA 92078 Phone 1 760 744 9430 Fax 1 760 744 9525 E mail operator oceanreefgroup com OCEAN REEF on the Web www oceanreefgroup com OCEAN REEF 2010 20
3. C after use The system must be kept completely dry and in good condition Do not twist the microphone cable Do not expose the unit to direct sunlight Do not leave the unit in your car Do not keep the unit in places that are too hot or too cold such as near air conditioners Do not keep the unit near magnetic fields Do not allow it to fall or be knocked around Replace the battery when it is running low When not using the unit for extended periods of time remove the battery from its housing to prevent damage Only use 9V alkaline batteries Install them in the battery housing ensuring that they are of the correct charge and polarity Do not activate the polarity circuit using metal wires or pieces of metal Make sure there is no dirt debris or water in any part of the unit especially in the battery housing or under the o ring If any dirt debris or water is found remove it When replacing the battery check the o ring for damage If it is damaged replace it The O ring must be lubricated with a thin layer of silicone lubricant Do not dismantle or repair this unit yourself Follow the instructions for correct maintenance of the microphone and battery housing given in previous chapters If the battery compartment should be flooded remove the battery rinse the compartment with fresh water and leave to dry Remove any debris and clean the gold plated contacts then install a new battery If the unit does not function check t
4. GSM DC COMMUNICATION UNIT OWNER S MANUAL connecting divers For nearly 60 years OCEAN REEF has been involved in the underwater diving industry We have contributed much to this industry from fins and snorkels to the most modern systems of underwater communication Through the spirit of intrepid pioneers brilliant inventors passionate divers and dynamic entrepreneurs OCEAN REEF has been able to turn dreams into reality in the underwater world OCEAN REEF USA OCEAN REEF ITALY In order to limit our paper consumption and as a part of our environmental friendly and responsible approach OCEAN REEF prefers to put user documentation online rather than print them out Please refer to our web site www oceanreefgroup com X OCEAN REEF 2010 K GSM DC COMMUNICATION UNIT OWNER S MANUAL Premise and warnings Introduction TABLE OF CONTENTS General precautions and warnings Technical characteristics attaching the UW unit to a full face mask Microphone Procedure for the assembling of a PTT amp D Mic microphone on the mask DAT mode and SECOND CHANNEL Checking before use Basic Instructions for underwater communication Installing replacing the battery Precautions amp Troubleshooting Technical Specifications Warranty GSM DC Communication Unit Manual Rel 1 1 November 2010 CONOUO HK 11 12 14 15 18 3 The Communication unit described in the following manual is the GSM DC
5. NG THE BATTERY GSM DC works with a conventional 9V alkaline battery Do not use manganese batteries Unscrew the two screws on the cover and remove the cover and cap with its o ring Remove the dead battery from the main compartment Install a new battery in the compartment making sure that the polarity is correct see label on the inside Clean and lubricate the o ring Reposition the cap as indicated in figure below The cap MUST face the right direction The flat side of the battery cap must be on the rear side when wearing the mask with the GSM in order to get a good seal Holding the cap in position position the cover and screw the two screws in place until they are tight DO NOT OVER TIGHTEN the screws Flat side cover When the battery has been installed check that the battery housing and O ring are clean The o ring must always be lubricated with a thin layer of silicone lubricant A screwdriver for GSM DC units battery installing replacing is provided in the com unit package If the units are not going to be used for a while the battery should be removed The cap must be stored inside the battery compartment This will ensure that the unit will work properly for a longer period of time PRECAUTIONS amp TROUBLESHOOTING Do not use solvents such as diluents to clean the unit They can cause irreparable damage Only use neutral detergents Use running water to remove the seawater from your GSM D
6. S Place back the o ring on the notch at the end of the black rotating support The left middle strap of the octopus strap must be positioned over the rotating support Attach the NACS to the mask by positioning the holes of the transparent part over the black buttons of the clamping band and pressing These buttons are the same ones that hold the protective shield when the mask is not in use Make sure the protective shield is removed prior to attaching the NACS to the mask The black rotating part of the NACS has a vertical rotation angle of 25 After wearing the mask you will find the most af comfortable angle for you If you prefer to move the GSM DC closer or father away from your face simply slide the unit over to the selected position and move the o ring to a different notch The use of the NACS allows for a more comfortable wearing of the mask and best strap adjustment The GSM DC must be always used with the NACS NACS is a patented product of OCEAN REEF GSM DC Communication Unit Manual Rel 1 1 November 2010 7 MICROPHONE The GSM DC use a dynamic microphone D Mic encapsulated and protected by a hydrophobic membrane The microphone allows dependable clear reproduction of the human voice It removes unnecessary noise such as the noise of bubbles being exhaled from the mask The D Mic microphone uses a hydrophobic membrane that allows air to pass through while protecting the microph
7. at you switched to the second freguency change the channel also on the second unit and test again transmission receiving and DAT mode Pushing the DAT button only you will activate the Digital Activated Transmission mode Check that it is working on both channels Only one diver per time should use the DAT mode Disregarding this direction will cause communication to be confused and useless A repeated beep about every 30 seconds means that the battery is running low Change it GSM DC Communication Unit Manual Rel 1 1 November 2010 11 BASIC INSTRUCTIONS FOR UNDERWATER COMMUNICATION The GSM DC is activated for reception as soon as it is immersed in water and it turns off afew seconds after it dries out When it s switched on this is confirmed by a message channel one Push the PTT button and the activation of the transmission mode is anticipated by a beep wait until this is over before speaking When a message is incoming from your buddy or from the surface you ll hear the beep that anticipate the transmission breath slowly to avoid bubbles to disturb communication Inform your buddies before switching to a different transmission channel e When speaking to other divers remember that they are diving It is best to attract their attention before sending a message Talking and listening while underwater requires practice With experience divers will become more proficient in the use of the commun
8. he state of the microphone Routinely clean the microphone contacts and check the integrity of the hydrophobic membrane and the casing If the microphone is flooded it CANNOT BE recovered and must be replaced Do not touch the hydrophobic membrane with any sharp objects that may damage it GSM DC Communication Unit Manual Rel 1 1 November 2010 15 PROBLEM POSSIBLE CAUSE ACTION The unit doesn t switch on The battery is missing the contacts are isolated the battery is dead Insert a charged battery Remove isolation caps 2 The polarity is Insert the battery inverted correctly 3 2 The contacts are Send for servicing broken 4 bi Battery compartment Remove water rinse flooded with fresh water let dry Lubricate the O ring Clean Contacts Insert new battery 5 Battery compartment flooded O ring dirty incorrectly Clean the O ring positioned or broken lubricate with silicone lubricant If broken replace Proceed as per point 4 6 si Cap broken Replace the cap proceed as per point 4 7 si Seating for cover Replace the cap screws broken cover 8 Bi Main casing broken Send for servicing 9 The unit switches on and receives PTT button not Send for servicing but does not transmit working Microphone flooded or Change the defective microphone 10 Microphone contacts Clean the contacts disconnected or dirty with fresh water then sand a
9. ications system e Speak slowly and pronounce each word clearly Only speak after having sent a call impulse by pressing the PTT button on the microphone It is advisable to practice in a swimming pool before using the device in open water e Bubbles and especially small air bubbles that are in contact with or near those communicating reduce the transmitting power When using the unit in swimming pools or in highly oxygenated water coat your antenna in silicone lubricant This will make it more difficult for the air bubbles to adhere to it e Obstacles such as rocks may reduce your communication range gt gt eee gt p 2 e When breathing out exhaling reduce the emission of bubbles as far as possible WITHOUT STOPPING EXHALING WHEN RESURFACING Bubbles cause noise or ultrasonic base signals e It is normal to receive a background signal like clutter Movement of sand and pebbles on the seabed marine motors cetaceans and other sources can create vibrations in the water that give rise to a range of ultrasonic waves that can be picked up by the DC e When using the device in shallow water you may experience difficulty communicating because 1 The surface is full of air bubbles formed by the waves 2 The sand under water is causing ultrasonic noise due to the waves For more extended information www oceanreefgroup com training html GSM DC Communication Unit Manual Rel 1 1 November 2010 13 INSTALLING REPLACI
10. injuries may result if you ascend while holding your breath DO NOT STOP BREATHING WHILE SURFACING FROM A DIVE If you are going to speak while diving you should take in a larger than normal breath ALWAYS MONITOR YOUR PRESSURE GAUGE Before attempting to use this device in open water you must practice using the unit in confined water such as a pool GSM DC Communication Unit Manual Rel 1 1 November 2010 5 GSM DC transceiver unit TECHNICAL CHARACTERISTICS Battery housing Di s On Off wet contacts CO S f RNS Pd Antenna Microphone cable ka l aa n KA Push To Talk con WA button DAT activation button Microphone Main parts of the unit are Battery housing inside the battery housing there is a label with the serial number and the polarity to insert the battery The unit uses a 9volt alkaline battery rechargeable batteries will last shorter The autonomy with the alkaline battery receiving mode is around 9 hours with 1 hour of low battery alarm one beep every 30 seconds starting when voltage goes below 7 5volt Antenna it is made of ceramic made to transmit and receive ultrasound to a frequency of 32 768 kHz and 41 000 kHz UCF Wet contact screws the unit is automatically turned on when it is submerged in water to perform a dry test is possible to turn it on using the fingers PTT amp DAT activation buttons amp MIC buttons are magnetic The YELLOW one is the Push To Tal
11. isor MEMBRANE ON THIS SIDE e If the membrane is turned the wrong way facing the mouth phonic performance will be diminished Move the microphone so that it does not interfere with the diver s lips or the pressure equalization system The D MIC is supplied with a flexible contacts protective band The band prevents interaction of the mouth with the D MIC connectors GSM DC Communication Unit Manual Rel 1 1 November 2010 9 DAT MODE AND SECOND CHANNEL The red button on the GSM DC unit has two different functions e Pressed with the yellow one switches communication from channel one 32 768 kHz to channel 2 41 000 kHz e Pressed alone activates the DAT mode Changing Frequency Press the yellow button and keeping it pressed immediately after push the red one too and release them simultaneously you ll hear a message channel two meaning that you switched from channel one to two Now you are communicating on 41 000kHz frequency push the PTT button yellow to transmit and release it to receive Do again the previous operation to go back to channel one Digitally Activated Transmission When a diver is in need to be in contact with the surface without having to push the PTT button continuously can activate the DAT mode Simply press and release the red button and a particular sound will confirm to you and to the surface that the DAT mode has been activated DAT mode is a loop of 30 seconds transmit
12. k button the RED one is the DAT activation button Pressing both is to changes transmission channel The D Mic is dynamic see following specs The PTT amp Microphone assembly is connected to the main unit with 30cm 1 ft of polyurethane reinforced cable Speaker it is made of ceramic sealed with a special silicon resin it is designed to work underwater so the best quality is achieved when the unit is submerged Slot for inserting the NACS the NACS is an OCEAN REEF patented support to hold the communication unit in position making the mask more comfortable Range of operation 200 250m in calm water This may vary due to salinity particulate water temperature and noise level in the water Depth of operation within the recommendation or training agencies ATTACHING THE UW UNIT TO A FULL FACE MASK The GSM DC can be attached to any of the major full face masks available on the market if equipped with a female DIN connection for the transmission and microphone button assembly For optimum functioning we recommend using the unit on OCEAN REEF Neptune masks as the unit s acoustic characteristics are designed to suit these masks HOW TO INSTALL THE NACS Neptune Adjustable Communication Support Hold the NACS as pictured with the transparent stationary S part to the left and the black rotating part to the right Remove the o ring from the notch at the end of the black rotating part of the NACS Slide the GSM DC onto the NAC
13. nd lubricate 11 ji Cable between Send for servicing microphone and casing broken 12 The unit does not receive The transmission unit Try another is not working transmission unit 13 bi Speaker or internal Send for servicing components defective 14 The unit transmits continually PTT button defective Send for servicing 15 16 16 TECHNICAL SPECIFICATIONS Code 33122 Type Wireless ultrasonic Activation Automatic Transmission PTT DAT Receiving Automatic DAT System type H SSB Freguency 32 768 kHz ch1 41 000 kHz ch2 Working range k k 200m 600 feet Rated depth 40m 120 feet Powered by 9v alkaline Autonomy total 9 hours Low battery autonomy th after alarm starts Low battery 1 beep every 30 alarm seconds under 7 5v Automatic Transmission ag Activation y DAT Transmission 30 transumi receiving cycle 20 receive Sguelch Automatic Weight with batteries 3709 12 9 oz GSM DC Communication Unit Manual Rel 1 1 November 2010 17 18 WARRANTY 1 OCEAN REEF communication units are guaranteed to be free of material or manufacturing defects for a period of 24 months from the time the unit is purchased For the duration of the guarantee the Company s responsibility is limited to replacement of any parts that are defective in our opinion and that have not been used incorrectly or handled negligently The unit
14. one from water This membrane also reduces the muffling effect allowing a phonic performance that is very high Another characteristic of the hydrophobic membrane is its mechanical strength The D Mic is fitted with a membrane that is designed to handle pressure of more than 1bar 14 7 PSI If the membrane brakes the microphone will flood causing transmission to stop Remember that the Neptune masks are designed to operate with balanced pressure If the mask is removed underwater the microphone WILL NOT suffer any damage However continuing to descend WITHOUT the mask sealed on the face the microphone may be damaged if the limits indicated above are exceeded In relation to the depth at which the mask was removed Ascending must be done in accordance with the dive tables or dive computer to avoid decompression problems The communicator and microphone should be rinsed with fresh water immersed not a strong flow of water after each dive and should be placed in a well ventilated area that is not exposed to direct sunlight to dry D Mic does not have a polarity restriction when assembled on the PTT contacts Be careful to unscrew the two screws before removing it Clean the contacts and lubricate them on a timely base PROCEDURE FOR THE ASSEMBLING OF A PTT amp D MIC MICROPHONE ON THE MASK e Unscrew the communication port plug insert the microphone through the port into the mask with the hydrophobic membrane facing the v
15. ting and 20 seconds receiving in between the two periods two different sounds will distinguish transmitting from receiving time Pushing again the red button will quit the DAT mode and another sound will be heard It is strictly recommended to test the unit before diving to familiarize with it and its different functions 10 CHECKING BEFORE USE Once the battery has been installed and you have checked that the cap and cover have been closed properly dampen your fingers and touch the two screws On Off switch contacts and activate the polarity circuit You will hear a voice saying channel one indicating activation When the unit is turning on it will always and automatically go on channel one Run another finger along the antenna You will hear a zzzzzz type sound coming from the speaker Try to bring the antenna transducer near the antenna on a M105 DC unit or the antenna on a GSM DC unit about 5 cm 2 inches keeping your fingers on the On Off contacts You should also be able to hear the communication when the unit is not immersed in water Pushing the PTT button you will hear a beep indicating that you can transmit speak keeping the PTT button pressed and check that the other unit is receiving Do the opposite operation to check the receiving of your GSM DC Push the PTT button and immediately after push also the DAT button and release them simultaneously you will hear a voice channel two indicating th
Download Pdf Manuals
Related Search