092007 - CSIRO Marine and Atmospheric Research
Contents
1. 16 Profile piston position park and profile floats only 17 Air bladder pressure measured in counts approximately 148 counts 18 Quantity of T P averages at park depth 19 Samples per Average number of T P samples in each average Data format varies based on value of parameter PS Two bytes temperature Tavg and two bytes pressure Pavg data are stored for each average at park depth number of averaged T P pairs is indicated in byte 18 of message one Two bytes DD mark end of averaged T P values Two bytes Park temperature sampled just before instrument descends to target depth Two bytes Park salinity sampled just before instrument descends to target depth Two bytes Park pressure sampled just before instrument descends to target depth One byte Park battery voltage no load One byte Park battery current Two bytes Surface Pressure as recorded just before last descent with an offset of 5 dbar One byte Internal vacuum measure in counts approximately 101 counts 11 One byte Park piston position One byte SBE pump Voltage Onebyte SBE pump current 2 bytes temperature first sample from profile 2 bytes salinity first sample from profile 2 bytes pressure first sample from profile 2 bytes temperature second sample from profile 2 bytes salinity second from profile 2 bytes pressure second sample from profile Format for message nu2. and then begin its pre programmed mission The six ARGOS transmissions during self test and the transmissions during the initial 6 hour period contain data about the instrument and are outlined in V ARGOS DATA part C TEST MESSAGE FORMAT Procedure 1 Secure float in horizontal position using foam cradles from crate IMPORTANT Remove plastic bag and three plugs from CTD sensor if they have not already been removed 2 The minimum internal temperature of the float is 2 0 C If necessary let float warm indoors before proceding 3 Carefully remove black rubber plug from bottom center of yellow cowing to verify bladder inflation per below Use fingers only tools may puncture bladder Be sure to replace plug before deployment Note it can be very difficult to replace plug when air bladder is fully inflated Replace plug during beginning of air bladder inflation Purpose of plug is to prevent silt entry if float contacts sea floor 4 Hold provided magnet at RESET position marked on for several seconds then remove magnet Note Magnetic switch must be activated held for at least one second to reset the instrument This is to provide a safety against accidental reset during transport Thus if the float does not respond as below the instrument was probably not reset 5 The air pump will operate for 1 second 6 The PTT will transmit 6 times at 6 second intervals Place ARGOS receiver beeper close t
3. repetition rate Total number of messages n is described in section IV b or may be determined from the ARGOS data Note n may be less than specified in user manual if the float is operating in shallow water causing reduced profile length Repetition rate r is the time interval between ARGOS transmissions This value can be determined from section V or from the ARGOS data Approximate time of surfacing Subtracting Te from the ARGOS time stamp can determine approximate time of surfacing Example Below is message 01 in DS format 2001 11 02 22 47 54 1 CF 01 05 02 AF 02 2F 00 85 01 01 01 16921719 9E 94 01 AD 85 09 1F 48 97 9B 00 46 62 24 0E m message block number byte 03 5 n total number of messages to transmit profile 11 24 r repetition rate 62 seconds Te elapsed time since surfacing m 1 n r 5 1 11 62 s 2728 s 00h 45m 28s Approximate time of arrival at surface ARGOS time stamp Te 22 47 54 00 45 28 22 02 26 Total time spent at surface transmitting Tsurf This is determined by subtracting ascent time from UP time Tsurf UP time hr bottom pressure ascent rate 0 08 dbar s 3600 Bottom pressure is telemetered as bytes 7 amp 8 of message 02 Example For bottom pressure of 2000 dbar and UP time of 18 hours Tsurf 18 hr 2000 0 08 3600 11 hr 25 APPENDIX D Argos ID formats 28 bit and 20 bit In 2002 Service Argos notified its users the
4. Missions section of this manual If the repetition rate is 120 seconds the controller is not communicating properly with the CTD and the float should not be deployed Six hours after reset the piston pump will retract and bladder will deflate Important deploy within 6 hours of reset or reset again to re initialize 6 hour period Purpose is to have instrument on surface to receive test transmissions and to ensure proper buoyancy control Pass a rope through the hole in the damper plate Holding both ends of rope bight carefully lower float into water Do not let rope slide through hole in disk this may cut the plastic disk Take care not to damage antenna Do not leave the rope with the instrument release one end and retrieve the rope The float will remain on surface until 6 hour interval has expired IV Optional Software Features Pressure Activation DPF and Average T P at Park depth A Pressure activation Floats are normally activated i e reset as described in section II Pressure activation is a backup feature intended to ensure activation if the normal reset procedure is accidentally omitted Note pressure activation is an optional feature it is NOT included in all APEX floats The reset and self test sequence described in section II should be followed carefully Pressure activation should be used only as a backup in case reset is forgotten The float must sink in order for this feature to work At a menu set
5. converted to hex 36 8286 rounds to 36 829 and converts to 8FDD 15 Vil MISSIONS This section lists the parameters for each float covered by this manual The parameter listing appears when the float is RESET while connected to a terminal INSTRUMENT 3550 APEX version 04 27 06 sn 3597 043 065 Immediate deep profile after 6 hour launch period EA04C ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 254 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3551 APEX version 04 27 06 sn 3598 043 065 Immediate deep profile after 6 hour launch period 01EA05F ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 254 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start c
6. measurements per profile See appendix D Format for message number only Byte 01 CRC described in section C 02 Message number Assigned sequentially to each 32 byte message Total number of messages per profile is shown below Messages are transmitted in sequential order starting with 1 and incrementing by one for the data set 03 Message block number begins as 1 and increments by one for every ARGOS message data set This combined with the ARGOS repetition rate section VI allows the user to track surface drift Byte 03 will roll over at 256 and will reset to 1 on each new profile 04 amp 05 Serial number identifies the controller board number This may not be the same as instrument number 06 Profile number begins with and increases by one for every float ascent 07 Profile length is the number of six byte STD measurements in the profile Total number of bytes of STD data from each profile depends on the sampling strategy chosen 08 Profile termination flag byte 2 see section D 09 Piston position recorded as the instrument reaches the surface 10 Format Number identifier for message one type 11 Depth Table Number identifier for profile sampling depths 12 amp 13 Pump motor time in two second intervals multiply by 2 for seconds 14 Battery voltage at initial pump extension completion 15 Battery current at initial pump extension completion one count 13 mA
7. 11 A 1010 3 2 0010 12 B 1011 4 3 0011 13 C 1100 5 4 0100 14 D 1101 6 5 0101 15 E 1110 7 6 0110 16 F 1111 8 7 Olli 9 8 1000 Bit 8 is the most significant bit and bit 1 is the least significant bit in the byte 21 As an example if a deep profile ended with the piston fully extended and ascend had timed out then bits 1 4 and 5 would be set in the termination byte This binary pattern 0001 1001 would be transmitted as the two hex characters 19 As another example if a regular profile ended with the piston fully extended and the 25 minute next pressure had timed out then bits 3 and 4 would be set in the termination byte This binary pattern 0000 1100 would be transmitted as the two hex characters OC a 22 Appendix B CRC Algorithm in BASIC for 28 bit Id Below is a sample program in BASIC to calculate the CRC value for a message This program can be provided upon request in Basic Fortran or C DECLARE FUNCTION CRC INQ AS INTEGER N AS INTEGER CRC routine to check data validity in ARGOS message Bathy Systems Inc RAFOS Float data transmission 3 December 1990 The Ist of 31 bytes in an ARGOS message is the CRC The function CRC will compute CRC for byte 2 through 31 Hasard is used for Random because Random is reserved by BASIC Stored as file CRC in C RAFOS RAF11 DECLARE SUB Hasard ByteN AS INTEGER DEFINT A Z DIM in 31 AS INTEGER RAF11F message number 08 HEX ID 11502 01 02 93 CRC is
8. 2 280 68 20 17 950 43 270 69 10 18 900 44 260 70 4 or surf 19 850 45 250 20 800 46 240 21 750 47 230 22 700 48 220 23 650 49 210 24 625 50 200 25 600 51 190 26 575 52 180 The SeaBird CTD is not sampled at zero pressure to avoid pumping the cell dry and or ingesting surface oil slicks The shallowest profile point is taken at either 4 dbar or at the last recorded surface pressure plus 5 dbar whichever value is larger 13 C TEST MESSAGE FORMAT The test message is sent whenever an I2 command is given the six transmissions during the startup cycle and during the six hour surface mode period prior to the first dive Each test message has 31 Bytes in hex unless otherwise noted with the following format Byte 01 CRC described in section C 02 Message block number begins as 1 and increments by one for every ARGOS message 03 amp 04 Serial number identifies the controller board number This may not be the same as instrument number 05 amp 06 Time from start up in two second intervals Hex 07 Flag 2 byte 08 amp 09 Current pressure in bar 10 Battery voltage 11 Current Bladder pressure in counts 12 Up time in hours 13 amp 14 Down time in hours 15 amp 16 Park pressure in bar 17 Park piston position in counts 18 Depth correction factor in counts 19 Storage piston position in counts 20 Fully extended piston position in counts 21
9. ASTING RECORDS eseessecesssecsscseessocecsseceessecssssesssoceesse 27 I ALKALINE BATTERY WARNING The profiler contains batteries comprised of alkaline manganese dioxide D cells There is a small but finite possibility that batteries of alkaline cells will release a combustible gas mixture This gas release generally is not evident when batteries are exposed to the atmosphere as the gases are dispersed and diluted to a safe level When the batteries are confined in a sealed instrument mechanism the gases can accumulate and an explosion is possible Webb Research Corp has added a catalyst inside of these instruments to recombine hydrogen and oxygen into H20 and the instrument has been designed to relieve excessive internal pressure buildup by having the upper end cap release Webb Research Corp knows of no way to completely eliminate this hazard The user is warned and must accept and deal with this risk in order to use this instrument safely as so provided Personnel with knowledge and training to deal with this risk should seal or operate the instrument Webb Research Corp disclaims liability for any consequences of combustion or explosion Il Reset and Self Test Profilers are shipped to the deployment site in Hibernate mode Shortly before deployment reset the profiler by passing a magnet over the marked location on the pressure case The profiler will run a self test transmit for 6 hours with the bladder extended
10. OK A d802075d87c64e15078187c64c1f07b287c74a3007ce87c6483f07fe87c246 N 31 FORI 1toN in D VAL amp H MID A 2 I 1 2 NEXT I PRINT in 1 CRC in N FUNCTION CRC INQ AS INTEGER N AS INTEGER STATIC DIM ByteN as INTEGER I 2 ByteN in 2 DO CALL Hasard ByteN I 1 1 ByteN ByteN XOR in l LOOP UNTIL I N CALL Hasard ByteN CRC ByteN END FUNCTION DEFINT A Z SUB Hasard ByteN AS INTEGER STATIC x 0 IF ByteN 0 THEN ByteN 127 EXIT SUB IF ByteN AND 1 1 THEN x x 1 IF ByteN AND 4 4 THEN x x 1 IF ByteN AND 8 8 THEN x x 1 IF ByteN and 16 16 THEN x x 1 IF X AND 1 1 THEN ByteN INT ByteN 2 128 ELSE ByteN INT ByteN 2 END IF END SUB 23 Appendix C Surface arrival time and total surface time Some users may wish to determine surface arrival time and total surface time in order to calculate drift vectors Although each 31 byte message is time stamped by ARGOS there may not be a satellite in view when the float surfaces When the float surfaces ie detects surface pressure recorded before last descent it will begin ARGOS telemetry Messages are transmitted in numerical order starting with message no 1 When all messages have been transmitted the cycle starts again at message no 1 Elapsed time since surfacing Te Te m 1 n r Where m message block number byte 03 of message 01 n total number of messages to transmit profile r
11. WEBB RESEARCH CORPORATION 82 Technology Park Drive East Falmouth MA 02536 4441 508 548 2077 FAX 508 540 1686 USER MANUAL APEX PROFILER Serial numbers 3550 3563 REV DATE 09 20 07 WRC Job no 1236 1 Software Rev 4 27 06 Park and Profile with 28 bit ID DPF and Park average samples I ALKALINE BATTERY WARNING seesseoeessecesssecssccoeessoceesseceeseeossscseesscoeesseceesoecsscecsscoeesseceessecessseessooeesseceese 2 TI RESET AND SELF TEST sscs5s svesessssveccasesvesestusvesestescasedeetesssedecvesesesse sseseesessatiess es esse ivesessesvabesdesteceiiessetvssusteseass 3 HI DEPLOYMENT sscsssscsscsssesssssssscssessseccsnsssecsscessessscssescsseoscessiacdsossecvisessoecs sebasesessonsssbecdssstaasesonssbesosesecsassdenceoes 5 IV OPTIONAL SOFTWARE FEATURES PRESSURE ACTIVATION DPF AND AVERAGE T P AT PARK DEPT A ivsecis sccsccccsscsscssctsacstesecsosssectdeseosecssedevcsacedocscsesteesddeescbeseueesasvsssesseessessiasdesssbacssdsscssdcesodansosoesc dcwedsossaseancsses 6 A PRESSURE ACTIVATION ia ia ae ns TR E ade 6 B DEEP PROFILE FIRST DPF FEATURE cccsessscccececsessaececececeesssecececcceesesasaecececeeseseaeceescsceeaaececececeensaaeeeeess 7 Co AVERAGE T P AT PARK DEPTH tores so nice mire crie nee a done ttes een ee td s ner 8 V PARK AND PROFILE FEATURES nas sachevsocsscevensesoossbvesdsteoessesvenecsesseses sessed sites so do 9 VI ARGOS DATA vissssscccsiccccsesescescssdecsesssonsscssdcedesscsoessd
12. amp 22 Profile pressure in bar 23 Profile piston position in counts 24 OK vacuum count at launch in counts 25 Ascend time in hours 26 Target bladder pressure in counts 27 Deep profile count 28 Auto start time multiply by 2 for hours 29 Month software version number in decimal 30 Day software version number in decimal 31 Year software version number in decimal Flag 2 byte 1 Deep profile Flag 1 byte 1 Trip interval time 2 Pressure reached zero 2 Profile in progress 3 25 minute Next Pressure timeout 3 Timer done 4 piston fully extended before surface 4 UP DOWN 5 Ascend time out 5 Data entry error 6 Test message at turn on 6 Measure battery 7 Six hour surface message 7 Piston motor running 8 Seabird String length error 8 Negative SBE number 14 D Telemetry error checking CRC Because ARGOS data contains transmission errors the first byte of each message contains an error checking value This value is a Cyclic Redundancy Check CRC and is calculated as a function of the message content bytes 2 to 32 For each message calculate a CRC value Compare the calculated CRC to the transmitted CRC byte no 2 Ifthe calculated and transmitted CRC values are not equal the message has been corrupted and should be deleted before further data processing Appendix B lists a sample program in BASIC to calculate the CRC value for a message This program can be
13. beacssedecaesancbacuetecsestecdsdevsedesesstessduveesesbacescussescessaaasecesse 10 A SERVICE ARGOS PARAMETERS ccccesssssccececssssccececsensnsnacsececsensnseaececsceensenaeececsceensnnaaecececsenesaasaecees 10 B DATA FORMAT 43 FOR 28 BIT ID FORMAT cccccccccscsccececececececececececececececececececasesssessusseseessseseseeeseaeaes 11 Ce TESTMESSAGE FORMAT inner tet devs as tendem tin seine a e dipcaraca adere So A entendida 14 D TELEMETRY ERROR CHECKING CRE ciais taste Hat ten Ait E memes ei Beau o A Ai tene ane 15 E CONVERSION FROM HEXADECIMAL TO USEFUL UNITS cccccececesececececececececececscececececececececececececececeeseeeeeeeececess 15 VII MISSIONS nn casseta A E E A E E T Ds ea dedo 16 APPENDIX A FLAG BYTE DESCRIPTION eseessecesssecssoceessocessecesssecsssoeesscceesseceessecsssoeesscoceesseceessecssssessssceesse 21 APPENDIX B CRC ALGORITHM IN BASIC FOR 28 BIT ID eessseosscsecssecccsseceessecsscoessoceesseceessecesssessseceesse 23 APPENDIX C SURFACE ARRIVAL TIME AND TOTAL SURFACE TIME eeeesseossseessocecssececcsecssoseessoceesse 24 APPENDIX D ARGOS ID FORMATS 28 BIT AND 20 BIT eessesesssecssosecssoceesseceessecsscoeessoceesscceessecsssseessoceesse 26 APPENDIX E STORAGE CONDITIONS sssessseseessoesssecssocecssoceessecesssecssooeessoceesseceessecsssoeessooessecesssecssssecessoceesse 26 APPENDIX F RETURNING APEX FOR FACTORY REPAIR OR REFURBISHMENT ses 26 APPENDIX G CTD CALIBRATION AND BALL
14. egins at profile depth The number of samples in each average is displayed by the float menu based on programmed Down time and depth at which profile starts Example excerpt from float menu 225 hours DOWN 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile The above distinction between regular profile and deep profile applies only if menu parameter PD is set to a value greater than one If PD 1 then all profiles are deep profiles i e all profiles are from profile depth which is set by parameter P6 Actual quantity of T P averages telemetered for each profile is indicated by byte 18 of message one Actual quantity of T P samples in each average is indicated by byte 19 of message one V PARK and PROFILE Feature APEX floats with park and profile feature can be set to profile from a maximum depth profile depth after a given number of profiles from a shallower depth park depth Terminology PARK intermediate depth at which the float drifts PROFILE maximum depth to which the float descends before profiling up DOWN time spent during descent and at park depth UP time includes ascent and time at surface Ascent rate approximately 08 meters per second Total Up time is typically set to 12 to 20 hours increasing proportional to depth and amount of data to be transmitted per profile Another factor is deployment l
15. heck PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3552 APEX version 04 27 06 sn 3599 043 065 Immediate deep profile after 6 hour launch period EA06A ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 252 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension 16 INSTRUMENT 3553 APEX version 04 27 06 sn 3600 043 065 01EA079 ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 254 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder press
16. le count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3558 APEX version 04 27 06 sn 3605 043 065 01EA0D4 ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 254 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension Immediate deep profile after 6 hour launch period Immediate deep profile after 6 hour launch period Immediate deep profile after 6 hour launch period 18 INSTRUMENT 3559 APEX version 04 27 06 sn 3606 043 065 Immediate deep profile after 6 hour launch period 01EAOEI ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 251 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum cou
17. mber 2 and higher Byte OICRC described in section C 02 Message number 03 to 31 Profile data continuing in sequence described above Note byte pairs may split between messages For instance if byte 31 of message 2 contains half of the byte pair The other half byte will appear in byte 3 of message 3 Message Format and Sampling Depths Sampling continues as shown above relevant to the number of depth table points sampled After the last data point in last message a Hex value of FFFF will fill remaining bytes APEX records a profile during ascent ie upcast Bottom pressure may change due to several causes such variation of insitu density internal waves float grounding in shallows change of float mass etc APEX automatic depth adjustment will compensate in most but not all cases 12 The number of sample points taken is proportional to depth as per sample depth table below The first i e deepest sample is taken at the first point in the depth table above bottom pressure Depth Table No 65 Sample Pressure Sample Pressure Sample Pressure Point dbar Point dbar Point dbar Bottom 1 2000 27 550 53 170 2 1900 28 525 54 160 3 1800 29 500 55 150 4 1700 30 475 56 140 5 1600 31 450 57 130 6 1500 32 425 58 120 7 1450 33 400 59 110 8 1400 34 375 60 100 9 1350 35 350 61 90 10 1300 36 340 62 80 11 1250 37 330 63 70 12 1200 38 320 64 60 13 1150 39 310 65 50 14 1100 40 300 66 40 15 1050 41 290 67 30 16 1000 4
18. nt P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension 19 INSTRUMENT 3562 APEX version 04 27 06 sn 3609 043 065 Immediate deep profile after 6 hour launch period 01EF313 ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 253 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3563 APEX version 04 27 06 sn 3610 043 065 Immediate deep profile after 6 hour launch period 01EF326 ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 250 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum co
19. nt P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3560 APEX version 04 27 06 sn 3607 043 065 Immediate deep profile after 6 hour launch period 01EAOF2 ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 254 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3561 APEX version 04 27 06 sn 3608 043 065 Immediate deep profile after 6 hour launch period 01EF300 ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 252 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum cou
20. o antenna to detect transmissions 7 The piston pump will begin to operate The piston will move to full extension 8 The oil bladder will expand this should take 15 25 minutes 9 After the piston pump stops PTT will transmit at specified ARGOS rate If repetition rate is 120 seconds the controller is not communicating properly with CTD and float should not be deployed 10 At every PTT transmission the air pump will turn on for 6 seconds until the air portion of the bladder has been inflated The pump should turn on 8 10 times 11 6 hours after reset transmissions will cease the bladder will deflate and the piston pump will retract the profiler begins its programmed mission 12 Reminder replace black rubber plug in cowling hole before deployment During self test the controller checks the internal vacuum sensor If the internal pressure has increased above a preset limit i e hull leakage caused loss of vacuum the instrument will not pump If you do not detect 6 test transmissions during step six and or if bladder does not inflate then the self test has failed and the instrument should not be deployed Deployment RESET instrument SELF TEST starts automatically see above When piston pump stops air pump inflates external bladder is full PTT will transmit for 6 hours at ARGOS Repetition rate interval Typical repetition rate is 90 seconds or less Programmed repetition rate can be found in the
21. ocation due to the polar orbit of ARGOS the number of passes per day increases at high latitudes DOWN time D Surface E P Park T H Profile TIME Parameter PD determines the frequency of deep profiles Schematic examples PD 2 PRET deep profile every 2 cycle deep profile every cycle Note For maximum battery life in ARGO applications WRC recommends use of PD gt one with park depth lt 1500 db VI ARGOS DATA A SERVICE ARGOS PARAMETERS The user must specify various options to Service ARGOS These choices depend on how the user wishes to receive and process data Typical parameters are listed below Standard location Processing Type A2 pure binary input hexadecimal output Results Format DS all results from each satellite pass Uncompressed Distribution Strategy Scheduled all results every 24 hours Number of bytes transmitted 31 per message Note Webb Research strongly recommends all users to use ARGOS Multi Satellite Service which provides receptions from 3 satellites instead of 2 for a small incremental cost Using Argos 28 bit ID Format 31 data bytes are transmitted in each message With 20 bit ID Format each message had 32 data bytes see Appendix D for more information 10 B DATA FORMAT 43 For 28 bit ID format Data are sent via ARGOS in 31 byte hex messages The number of 31 byte messages sent depends on the programmed quantity of temperature
22. ours followed by 7 hour ascent So ARGOS transmission of the first profile begins approximately 19 hours after reset Descent timing If profile depth is not achieved within eight hours upcast profile starts UP time begins If profile depth is achieved within eight hours the remainder of 8 hours is added to Up time and upcast profile starts Apex standard park and profile sequence continues as stated below C Average T P at Park Depth Averaged temperature T and pressure P measured at park depth are provided by this optional feature Park depth is defined by menu parameter P1 and is shown schematically in section V of this manual Temperature and pressure are sampled hourly during the park period salinity is not sampled Average T and P are stored for telemetry during the next surfacing These data are denoted as Tavg and Pavg in this manual The number of averages calculated during each park interval is set by menu parameter PS For example if PS 1 then Tavgl and Pavgl are stored for entire park interval If PS 2 then Tavg1 and Pavgl are stored for the first half of the park period and Tavg2 and Pavg2 are stored for the second half Note if parameter PD is greater than one as described in section V duration of the park interval varies depending on whether the upcast profile starts from park depth or from profile depth Duration of the park interval is reduced by nominally 6 hours during each cycle in which ascent b
23. provided upon request in Basic Fortran or C E Conversion from hexadecimal to useful units The pressure is measured every 6 seconds Temperature salinity and pressure are measured and stored at each point in the depth table Two hex bytes are stored for each sensor The decimal numbers from the STD sensors are converted to hex for compression in the ARGOS transmission as follows Temperature 5 digits 1 milli degree resolution Salinity 5 digits 001 resolution Pressure 5 digits 10 cm resolution To convert the hex ARGOS message back to decimal numbers hex gt dec converted units Temperature 3EA6 gt 16038 16 038 C Temperature F58B 02677 2 677 C Salinity 8FDD gt 36829 36 829 Pressure 1D4C gt 7500 750 0 decibars Current OA 10 130 mA Volts 99 gt 153 15 7 volts Voltage V counts 10 4 counts is in decimal number nominally 15 V and decreasing Current mA counts 13 counts is in decimal number Vacuum inHg counts 0 209 26 23 counts is in decimal number nominally 5 inHg Note regarding negative temperatures T C lt 0 Positive temperature range is 0 to 62 535C 0 to F447 hex Negative temperature range is 0 001 to 3 000C FFFF to F448 hex If hex value gt F448 then compute FFFF hex value Y Convert Y to decimal dec_Y dec Y 1 1000 1 degrees C The 5 most significant salinity digits are telemetered The 6 digit salinity number is rounded up and
24. re were a limited number of 20 bit Ids available and to begin preparing for a transition to 28 bit IDs The 28 bit IDs reduced from 32 to 31 the number of data bytes in each message Data provided by Argos will consist of 31 hex bytes per message Data acquired by use of an uplink receiver will consist of 32 hex bytes per message The first byte when using an uplink receiver is a 28 bit ID identifier used by Argos and is not represented in the Apex Data formats included in this manual APPENDIX E Storage conditions For optimum battery life storage temperature range is 10 to 25 degrees C When activated the floats should be equilibrated at a temperature between 2 and 54 degrees C If optional VOS or aircraft deployment containers are used these must be kept dry and should be stored indoors only APPENDIX F Returning APEX for factory repair or refurbishment Contact WRC before returning APEX floats for repair or refurbishment All returns from outside USA please specify our import broker Logan International Airport Boston c o DHL Danzas Freight Forwarding Agents Phone 617 886 5605 FAX 617 241 5917 500 Rutherford Avenue Charlestown MA 02129 Note on shipping documents US MADE GOODS 26 APPENDIX G CTD Calibration and Ballasting records included in hard copy only 27
25. s per average regular profile 105 samples per average deep profile 025 Initial piston extension Immediate deep profile after 6 hour launch period Immediate deep profile after 6 hour launch period Immediate deep profile after 6 hour launch period 17 INSTRUMENT 3556 APEX version 04 27 06 sn 3603 043 065 EAOBE ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 250 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3557 APEX version 04 27 06 sn 3604 043 065 EA0C7 ARGOS ID numter 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 252 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profi
26. table time interval parameter PA the float will reduce buoyancy to park piston position This ensures that the float will sink CTD pressure is checked one hour later If pressure indicates that the float is below the surface P gt 25 db or 36 PSI the float will activate become buoyant return to the surface transmit test message format for six hours then descend Conversion of PA parameter to hours The integer value of PA is multiplied by two hours For example if PA is set to one then every two hours the controller will reduce buoyancy to park piston position then check pressure Note PA value of 255 is a special case resulting in pressure check every 120 days This virtually turns OFF the pressure activation feature in order to conserve battery energy Energy implications Each cycle of moving the piston and checking pressure consumes a small amount of battery energy Note the piston will not usually be moved in most cases it will already be in park piston position Typical values for PA 01 pressure check every 2 hours 255 pressure check every 120 days B Deep Profile First DPF feature In some cases users want the float to return a CTD profile shortly after deployment for comparison with a conventional CTD cast from the ship The DPF feature satisfies this need After the initial six hour buoyant period the float descends to profile depth per menu parameter P6 For a 2000m profile descent requires nominally 6 h
27. unt P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension 20 Appendix A Flag Byte Description Two memory bytes are used one bit at a time to store 16 different bits of program flow information Both of these bytes are telemetered in the test messages sent at startup and for the initial 6 hour surface period Only flag byte 2 is sent in the data messages as part of message number Bit one is set for each deep profile and bit 8 is set each time the last SBE sensor value used an arithmetic round up Below is a list of what each bit in each byte signifies bit Flag 2 byte 1 Deep profile 2 Pressure reached zero 3 25 minute NextP timeout 4 Piston fully extended 5 Ascend timed out 6 Test message at turn on 7 Six hour surface message 8 Seabird string length error bit Flag 1 byte 1 Trip interval time 2 Profile in progress 3 Timer done 2 min bladder deflate time 4 UP DOWN 5 Arithmetic round up 6 Measure battery while pumping 7 Piston motor running 8 Negative SBE number The flag bytes are transmitted as two hex characters with four bits of information encoded in each character Each hex character can have one of 16 different values as shown in the following table 1 O 0000 10 9 1001 2 1 0001
28. ure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3554 APEX version 04 27 06 sn 3601 043 065 EA08B ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 251 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 samples per average regular profile 105 samples per average deep profile 025 Initial piston extension INSTRUMENT 3555 APEX version 04 27 06 sn 3602 043 065 01EAOAD ARGOS ID number 044 seconds repetition rate 225 hours DOWN 015 hours UP 1000 d bar park pressure P1 085 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 252 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 hours ascend time P9 120 days auto start check PA 149 air bladder pressure PB 001 deep profile count PD 002 average P amp T samples per park period PS 108 sample
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