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M U _ O C E A N O 2 5 0 0 S - U n i v e r s a l _ U K

I ss u e 10

3 0 •05 •07 14

This document is the property of IXSEA and shall not be reproduced nor transmitted without written approval

6.2 DEPLOYMENT

Once you have checked the operating state of the acoustic release (see paragraph 6.1) you are ready to set up

the mooring. See on hereafter the typical structure of an immersed mooring.

Mooring using the OCEANO 2500 (AR861B2S) acoustic release

Notes :

•

Make sure the transducer is in a clear spot during immersion, in direct line of sight with the sea surface.

•

Noisy environment conditions jeopardize the acoustic sensitivity of the acoustic release and the receiving

performances. Make sure that both the AR800 SERIES and the TT801 dunking transducers are deployed
as far as possible from any source of acoustic noises and vibrations.

•

The device's normal position must be vertical, transducer to the top.

•

Only use special load rings specified by IXSEA.

•

B2S

body must never be used as fulcrum.

•

Pay special attention to the fact that parts of the acoustic release made of UNS32550 Super Duplex

material are isolated from any dissimilar metal. This could lead to major corrosion risks between the
dissimilar metals.

Содержание AR861B2S

Страница 1: ...USER MANUAL OCEANO 2500 S Universal A COUSTIC R ELEASE ...

Страница 2: ......

Страница 3: ... 5 ACCESSORIES 10 6 OPERATION 11 6 1 PRE DEPLOYMENT CHECKING 11 6 1 1 Preliminary 11 6 1 2 Sending a Command with the TT801 11 6 1 3 Testing the Release Operation 12 6 1 4 Testing the Pinger Mode 13 6 1 5 Testing the Simple Ranging Operation 13 6 1 6 Testing the Telemetry mode 13 6 2 DEPLOYMENT 14 6 2 1 Attaching the Load to the Acoustic Shackle Assembly 15 6 2 2 Arming the B2S Releasing System 15...

Страница 4: ......

Страница 5: ...s malfunctions or damage caused by improper use or inadequate maintenance of the product Under no circumstances shall IXSEA be obligated to provide repair or replacement under this warranty in order a to repair damage caused by work done by any person not representing IXSEA for the installation repair or maintenance of the product b to repair damage caused by improper use or connection to incompat...

Страница 6: ...is manual 1 2 TECHNICAL SPECIFICATIONS Pressure 624 bar maxi Operating temperature from 5 C to 40 C Storage temperature from 20 C to 70 C Material Super Duplex stainless steel URANUS 52N UNS32550 with high mechanical strength and high sea corrosion resistance Length without ring 829 mm External diameter 130 mm Weight in air 30 kg Weight in water 22 kg Safe Working Load SWL 2 500 kg Release Load RL...

Страница 7: ...artition with the release mechanism and a screw opening system The following options are available Titanium body model OCEANO 2500 Ti Universal ref AR861B2T A remote transducer by separation of the built in transducer from the acoustic release body model OCEANO 2500 S Universal with Remote Transducer ref AR861B2S HD The acoustic actuator may be inserted in a chassis to make a Heavy Duty Acoustic R...

Страница 8: ...1 5 nF 2 4 ACOUSTIC COMMANDS The equipment must not execute a command on any parasitic noise That is why every command must be preceded by a ARM command Each ARM command corresponds to a Customer code specific to each customer Command implementation principle Note a new ARM code interpreted in this receiving window will reset the time out T On receipt of its ARM code the acoustic release transmits...

Страница 9: ...release verticality On reception of a Diagnostic command the acoustic release transmits two CAF separated by a delay ΔT Used in Time mode the TT 301B telecommand unit receives and displays this delay expressed in ms If the acoustic release falls in a cone of verticality whose aperture is 45 the delay is displayed as follows 5195 If the equipment is not in this cone of verticality the delay between...

Страница 10: ...for an unlimited duration Only the PINGER OFF command allows these transmissions to be stopped The following parameters are factory selected and cannot be changed by the user PFR 8 kHz or 12 kHz as expected by the user Pinger rate 5 seconds Motor rotation AR transmission 20 ms Standard CAF acknowledgment CAF execution Standard release AR reception 3 sec 2 sec Motor rotation AR transmission 20 ms S...

Страница 11: ...values read corresponds to the consumed energy compare to energy initially available Acoustic standby R20 alkaline batteries LSH20 Lithium batteries At 20 C 6 years and 2 months 9 years and 7 months At 0 C 5 years 8 years and 4 months 10 000 telecommand interrogations R20 alkaline batteries LSH20 Lithium batteries At 20 C 5 56 2 84 At 0 C 7 07 3 28 10 000 Pinger pulse 12 kHz at 5 seconds rate R20 ...

Страница 12: ...s delivered in a marine plywood box with an User Manual a Factory Acceptance Test a key to open and close the equipment For the acoustic releases fitted with Time Release option it will be delivered in addition a Graphic User Interface GUI an User Manual for Graphic User Interface a RS232 serial cable ref 9300142 a configuration file Conf_def xxx xxx serial number of the equipment to be loaded in ...

Страница 13: ...he Acoustic Release acoustic head The next sections go through the commands to be tested RELEASE PINGER ON TELEMETRY and SIMPLE RANGING If you use a TT301 remote control unit please refer to the TT301 user manual 6 1 2 Sending a Command with the TT801 Step Action 1 Select the TYPE AR8 of the instrument to be actuated using SCROLL key and confirm the selection by pressing ENTER key 2 Select the TRA...

Страница 14: ...g in water the command 7 End of procedure 6 1 3 Testing the Release Operation Perform the procedure in 6 1 2 with the RELEASE or RELEASE with PINGER command Before each acoustic release operation check that the release system is totally unobstructed and free of any foreign objects RELEASE command After detection of the CAF acknowledgement of the COMMAND RECEIVE message issued by the subsea unit th...

Страница 15: ...R OFF or ARM ARM command type The acoustic device transmits successively two CAF pulses that are received and processed by the remote control unit The ranging information is then displayed No other operation then transmitting CAF pulses is expected from the Acoustic Actuator 6 1 6 Testing the Telemetry mode Perform the procedure above with the TELEMETRY command type For TELEMETRY command the remot...

Страница 16: ...rect line of sight with the sea surface Noisy environment conditions jeopardize the acoustic sensitivity of the acoustic release and the receiving performances Make sure that both the AR800 SERIES and the TT801 dunking transducers are deployed as far as possible from any source of acoustic noises and vibrations The device s normal position must be vertical transducer to the top Only use special lo...

Страница 17: ...on 3 Connect the release system hook to the ring as described in Erreur Source du renvoi introuvable 4 End of procedure 6 2 2 Arming the B2S Releasing System Arming the B2S consists in locking the hook in a closed position It does not require the use of the acoustic remote control unit Step Action 1 Manually check the mobility of the lever and the hook around their axis 2 Unscrew and remove the lo...

Страница 18: ...ion is completed the dog clutch should normally be in the position as shown on the figure 2 Turn manually the dog clutch with a screwdriver to make the dog clutch pointing as shown on the above figure Warning IF THE DOG CLUTCH IS NOT SET AS DESCRIBED ABOVE IT MAY BE POSSIBLE TO ARM THE HOOK BUT LIFTING CAPABILITIES CAN BE JEOPARDIZED 4 Install the release ring ref 910 3234 in closed position on th...

Страница 19: ...t be reproduced nor transmitted without written approval Step Action 6 Then rock the lever ref 910 2922 in order to lean on the Dog Clutch shaft ref 910 1661A 7 While holding the lever in contact fit the locking screw ref 910 1662 and screw it up This screw locks the lever on the Dog Clutch mechanism ...

Страница 20: ...perty of IXSEA and shall not be reproduced nor transmitted without written approval Step Action NB Fit the locking screw with thread lock neoprene glue BOSTIK 1400 8 Check both visually and by pulling action on the hook that the assembly is properly locked 9 End of procedure ...

Страница 21: ...ndication of receipt from the remote control unit 5 End of procedure If the reception on the remote control unit fails check the code s and repeat the procedure Otherwise check that The dunking transducer of the surface remote control unit does not bump against the hull of the vessel The vessel is not moving too quickly causing eddies or turbulence around the acoustic head No frequency or code err...

Страница 22: ...on stop the vessel and proceed with Release operation as following Step Action 1 First initialize the TT801 remote control equipment and the receiver mode as indicated in the User Manual 2 See individual Factory Acceptance Test or the label stuck on the AR800 SERIES 3 Send the ARM code and the RELEASE code As soon as the acoustic actuator has received the remote control code it returns a first com...

Страница 23: ...ransducer of the surface remote control unit does not bump against the hull of the vessel The vessel is not moving too quickly causing eddies or turbulence around the acoustic head No frequency or code error has been made Make sure that the dunking transducer is deployed at suitable depth and as far as possible from any sources of vibrations or potential acoustic noise such as bubbles propeller tu...

Страница 24: ... a clean place Required tool size 10 Allen key Step 1 prepare the instrument Install the instrument on a clean horizontal surface and secure it in position using foam cradle or anything which will prevent it from rolling on the table Do not install the pressure housing in a vice or any tool which can stress deform or damage it Picture 1 Picture 2 Foam cradles to support Acoustic Release on its the...

Страница 25: ...der to gain access to the opening closing central screw Use of a second identical ALLEN key may be required in case of strongly tightened screws Place Hook part central axis washers 2 pcs and spacers 2 pcs in a safe place for later re assembly Picture 6 Picture 7 Picture 8 Remove intermediate hook Intermediate hook removed View of internal Using 1 or 2 ALLEN keys View of all parts locking screw St...

Страница 26: ...al transducer plug Unplug the transducer head connector brown flat 3 pins plug Keep on removing the upper end plate with is integral internal strength member Install it on a clean surface paying special attention to sealing surfaces and O Ring Gently pull on the lower end plate which is integral with motor assembly and electronic battery package and remove the whole from the pressure housing Insta...

Страница 27: ...re 18 off fresh cells and individually check them before installing them into the instrument Remove the 4 securing screws from the printed circuit board to gain access to the 3 battery banks Tilt the instrument to remove used batteries The new batteries must be inserted positive pole first by slightly tilting the device to prevent shocks Re install the battery printed circuit board If necessary bu...

Страница 28: ...board should face upward Remove old O ring from transducer end plate s groove clean surfaces and grease them install a new O ring in place Approach the upper end plate from the instrument insert the central strength member in its hole as indicated on picture gently push on the transducer head so that it is almost fully inserted in its pre locking position Connect the transducer to the electronic p...

Страница 29: ...cture 23 Reinstall lower end plate Conical sealing surface Close the instrument using and electronics view pressure housing Opening Closing tool Picture 24 Reassemble the hook 7 2 OPERATIONAL TESTS Proceed per pre deployment checking described in paragraph 6 1 7 3 PREVENTIVE MAINTENANCE After recovery rinse the device with fresh water and clean the transducer cap as detailed below ...

Страница 30: ...rea If the user wants to keep the batteries installed during storage it is recommended to inhibit PINGER ON function The storage with batteries removed is the advised storage mode for long storage periods Refer to the previous paragraphs to open the equipment and remove the batteries 7 5 TROUBLESHOOTING Transducer test Reception test Transmission test Battery voltage test and current measurement i...

Страница 31: ...ice South Down House Station Rd Petersfield Hampshire GU32 3ET IXSEA Ltd Aberdeen Office UNITED KINGDOM 44 0 1730 260 222 44 0 1224 355 160 44 0 1730 260 333 IXSEA Inc 35 Corporate Drive 4th floor Burlington MA 01803 USA 1 781 937 8800 Support 1 888 660 8836 toll free 1 781 937 8803 1 781 937 8806 IXSEA Pte Ltd 53 UBI Avenue 1 03 10 Paya Ubi Industrial Park 408934 SINGAPORE 65 6747 4912 Support 65...

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