APEX User Manual, UK.. - Argo Information Centre
Contents
1. 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 0 0000 10 9 1001 2 1 0001 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 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 12 E CRC Because ARGOS data may contain 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 1 Ifthe calculated and transmitted2. 30 Month software version number in decimal 31 Day software version number in decimal 32 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 Arithmetic round up 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 these points will be bottom values for non park and profile floats sampled just before ascent D 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 1 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 11 3 Timer done 2 min bladder deflate time
3. 012 ascent rate correction P3 100 storage piston position P4 247 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1511 APEX version 10 16 02 sn 1811 004 042 AFFSE ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 16 252 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1512 APEX version 10 16 02 sn 1812 004 042 B0138 ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1500 d bar park pressure PI 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 248 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1513 APEX version 10 16 02 sn 1813 004 042 B016B ARGOS ID nu
4. 254 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1519 APEX version 10 16 02 sn 1819 004 042 B0665 ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 222 intervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 248 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 19 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1506 APEX version 10 16 02 sn 1806 004 042 B078F ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 222 intervals DOWN 018 intervals UP 1500 d bar park pressure Pl 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 244 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1507 APEX version 10 16 02 sn 1807 004 042 B07DC ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 222 i
5. JES PD 2 PD 1 deep profile every 2 cycle deep profile every cycle V ARGOSDATA 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 32 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 B DATA FORMAT 4 Data is sent via ARGOS in 32 byte hex messages The number of 32 byte messages sent depends on the programmed quantity of temperature measurements per profile Format for message number 1 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
6. is surface Pressure T S and P are Temperature Salinity and Pressure values FFFE Invalid data points Data format chart above assumes that bottom pressure maximum hydrostatic pressure at start of profile was reached Data format will change if bottom pressure varies 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 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 42 Sample Pressure Sample Pressure Sample Pressure Point dbar Point dbar Point dbar Bottom 1 2000 27 400 53 20 2 1900 28 360 54 10 3 1800 29 330 55 4 or surf 4 1700 30 300 5 1600 31 280 6 1500 32 260 7 1400 33 240 8 1350 34 220 9 1300 35 200 10 1250 36 190 11 1200 37 180 12 1150 38 170 13 1100 39 160 14 1050 40 150 15 1000 41 140 16 950 42 130 17 900 43 120 18 850 44 110 19 800 45 100 20 750 46 90 21 700 47 80 22 650 48 70 23 600 49 60 24 550 50 50 25 500 51 40 26 450 52 30 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
7. 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 1 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 16 Air pump current one count 13 mA 17 Profile piston position park and profile floats only 18 Surface piston position typically 25 counts more than byte 9 for excess buoyancy 19 Air bladder pressure measured in counts approximately 148 counts 20 amp 21 Park temperature sampled just before instrument descends to target depth 22 amp 23 Park salinity sampled just before instrument descends to target depth 24 amp 25 Park pressure sampled just before instrument descends to target depth 26 Park battery voltage no load 27 Surface battery voltage no load 28 amp 29 Surface Pressure as reco
8. AND 1 1 THEN ByteN INT ByteN 2 128 ELSE ByteN INT ByteN 2 END IF END SUB F 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 14 hex dec converted units Temperature 3EA6 gt 16038 16 038 C Temperature F58B 02677 2 677 C Salinity 8FDD 36829 36 829 Pressure 1D4C gt 7500 750 0 decibars Current 0A gt 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
9. CRC values are not equal the message has been corrupted and should be deleted before further data processing 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 1st of 32 bytes in an ARGOS message is the CRC The function CRC will compute CRC for byte 2 through 32 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 32 AS INTEGER 13 RAF11F message number 08 HEX ID 11502 01 02 93 CRC is O K A 8F0008 1 C8E47239 148A4D2E9743A 1 DOE07038 1C06030984C2693492492C964B 2 N 32 FORI 1toN in I VAL amp H MID A 2 I 1 2 NEXT I PRINT in 1 CRC in N FUNCTION CRC IN AS INTEGER N AS INTEGER STATIC DIM ByteN as INTEGER I22 ByteN in 2 DO CALL Hasard ByteN I I 1 ByteN ByteN XOR in I 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
10. Webb Research Corporation 82 Technology Park Drive E Falmouth MA 02536 4441 508 548 2077 FAX 508 540 1686 USER MANUAL APEX SBE PROFILER APEX SBE INSTRUMENTS Southern Ocean floats serial s 1495 1496 1510 1513 North East Atlantic floats serial s 1516 amp 1517 Somalia Basin floats serial s 1514 amp 1515 amp 1518 amp 1519 Somalia Basin VOS floats serial s 1506 1509 m zB E s moO p gt Contract No 0370 290 WRC Job no 939 Manual Rev Date 11 1 02 Software Rev 10 16 02 Park depth 1500 Except 1750 for NE Atlantic Profile depth 2000 ALKALINE BATTERY WARNINNG cccssssssssssssssssssssssssssssssessenssssssessssssssnsessvsssessesssssessssssssnsnsessssessssssssosesssssessnsesecseses 2 RESET AND SELF TEST 2 DEPLOYMENT 3 PARK AND PROFILE FEA TURE eene ten enean tonta ton anen nto to tonta assess ta tanen nato tenen essen es tanen enne so tones seei 4 ARGOS DATA 5 SERVICE ARGOS PARAMETERS rrr cov en cene pero pere n ea eee eet eret e sve pee tete teneret ani 5 DATA FORMA T 84 APER ETONE ee e tenete i de E Ee RRC 6 TEST MESSAGE FORMAT a rire rene e ET P EE RC P arde eret rte 10 FLAG BYTE DESCRIPTION reete eter rere erp RA Ee ttt e E oe eee tee ET 11 O i EEEE E E E ETE EE EEEE 13 CONVERSION FROM HEXADECIMAL TO USEFUL UNIT S ccccssssssescesesseseseescsecsesccnecaese
11. are telemetered The 6 digit salinity number is rounded up and converted to hex 36 8286 rounds to 36 829 and converts to 8FDD VI MISSIONS INSTRUMENT 1495 APEX version 10 16 02 sn 1804 004 042 AFD95 ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 245 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 15 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1496 APEX version 10 16 02 sn 1805 004 042 AFE41 ARGOS ID number 046 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 246 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1510 APEX version 10 16 02 sn 1810 004 042 AFEE7 ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1500 d bar park pressure P1 055 park piston position P2
12. at the last recorded surface pressure plus 5 dbar whichever value is larger 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 32 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 seconds 07 Flag 2 byte 08 amp 09 Current pressure in dbar 10 Battery voltage 11 Current Bladder pressure in counts 12 Flag 1 Byte 13 Up time in intervals 14 amp 15 Down time in intervals 16 Interval time in hours 17 amp 18 Park pressure in dbar 19 Park piston position in counts 20 Depth correction factor in counts 21 Ballast storage piston position in counts 22 Fully extended piston position in counts 10 23 OK vacuum count at launch in counts 24 Ascend time in intervals 25 Target bladder pressure in counts 26 amp 27 Profile pressure in dbar Park and profile floats only 28 Profile piston position in counts Park and profile floats only 29 Deep profile cycle counts Park and profile floats only
13. cneeesecaesseaeceeseeaeeeeseneeeeeaeneeaees 14 MISSIONS E 15 l ALKALINE BATTERY WARNING The profiler contains alkaline 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 H2O and the instrument has been designed to relieve excessive internal pressure buildup by having the upper endcap 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 and then begin its pre program
14. e retracted Storage Position if not already there pause 2 seconds and then move to full extension 8 The oil bladder will expand this should take 15 25 minutes 9 After the piston pump stops the PTT will transmit at the specified ARGOS rate 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 the 6 test transmissions and if the bladder does not inflate then the self test has failed and the instrument should not be deployed Ill 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 intervals Normally 90 seconds Six hours after reset the piston pump will retract and bladder will deflate Deploy before this time is up or reset the instrument again to re initialize the 6 hour period The purpose is to have the instru
15. ir bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1516 APEX version 10 16 02 sn 1792 004 042 B0544 ARGOS ID number 046 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1750 d bar park pressure P1 045 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 249 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension 18 INSTRUMENT 1517 APEX version 10 16 02 sn 1817 004 042 B05B1 ARGOS ID number 046 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1750 d bar park pressure PI 045 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 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1518 APEX version 10 16 02 sn 1818 004 042 BOSE2 ARGOS ID number 046 seconds repetition rate 001 hour Trip interval 222 intervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4
16. iston extension 21 Vil RECORDS amp CALIBRATIONS 22
17. mber 044 seconds repetition rate 001 hour Trip interval 228 intervals DOWN 012 intervals UP 1500 d bar park pressure P1 055 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 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1514 APEX version 10 16 02 sn 1814 004 042 BO19E ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 17 222 intervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 249 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1515 APEX version 10 16 02 sn 1815 004 042 B0219 ARGOS ID number 046 seconds repetition rate 001 hour Trip interval 222 intervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 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 ascend time intervals P9 145 a
18. med 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 three plugs from Seabird sensor if they have not already been removed 2 Minimum temperature 2 deg C If necessary let float warm indoors before proceding 3 Carefully pry black rubber plug out of bottom center of yellow plastic cowling to verify bladder inflation per below 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 the provided magnet at RESET position marked on the hull for several seconds Note The internal magnetic reed 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 the ARGOS receiver beeper close to the antenna to detect transmissions 7 The piston pump will begin to operate The piston will move to th
19. ment on the surface and receive test transmissions Pass a rope through the hole in the damper plate Holding both ends of the rope carefully lower the float into the water Take care not to damage the antenna Do not leave the rope with the instrument release one end and retrieve the rope he float will remain on the surface until the 6 hour interval has expired Iv 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 descent from park to profile depth 6 hr ascent and time at surface Ascent rate approximately 08 meters per second Integer multiples of trip interval T are used to define Up time U x T and Down time D x T See section VI Missions 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 location due to the polar orbit of ARGOS the number of passes per day increases at high latitudes DOWN time UP time D Surface E P Park T H Profile TIME Parameter PD determines the frequency of deep profiles Schematic examples PE
20. ntervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 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 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1508 APEX version 10 16 02 sn 1808 004 042 B0879 ARGOS ID number 046 seconds repetition rate 001 hour Trip interval 222 intervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 20 250 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial piston extension INSTRUMENT 1509 APEX version 10 16 02 sn 1809 004 042 B0935 ARGOS ID number 044 seconds repetition rate 001 hour Trip interval 222 intervals DOWN 018 intervals UP 1500 d bar park pressure P1 055 park piston position P2 012 ascent rate correction P3 100 storage piston position P4 249 piston full extension P5 2000 d bar profile pressure P6 025 profile piston position P7 115 OK vacuum count P8 009 ascend time intervals P9 145 air bladder pressure PB 001 deep profile count PD 025 Initial p
21. rded just before last descent with an offset of 5 dbar 30 Internal vacuum measure in counts approximately 101 counts 31 Park piston position 32 SBE pump current these points will be bottom values for non park and profile floats sampled just before ascent Format for message number 2 and higher Byte 01 CRC described in section C 02 Message number 03 to 32 6 bytes in sequence 2 bytes temperature 2 bytes salinity 2 bytes pressure Message Format and Sampling Depths BTYE MSG2 MSG3 MSG4 MSG5 MSG6 MSG7 MSG 8_ 3 amp 4 5 amp 6 7 amp 8 11 amp 12 13 amp 14 P1 Pe Pit P16 P21 P26 P31 17 amp 18 19 amp 20 21 amp 22 23 amp 24 25 amp 26 P3 Pa P13 P18 P23 P28 P33 27 amp 28 29 amp 30 31 amp 32 P4 P9 P14 P19 P24 P29 P34 Bytes 3 8 in message 2 only are Bottom T S amp P sampled just before ascent and are not points from the depth table 3 amp 4 5 amp 6 7 amp 8 9 amp 10 T36 141 T46 151 FFFF 11 amp 12 13 amp 14 15 amp 16 T37 T42 T47 T52 FFFF 17 amp 18 S37 S42 S47 S52 FFFF 19 amp 20 P37 P42 P47 P52 FFFF 21 amp 22 23 amp 24 S38 S43 S48 S53 FFFF 25 amp 26 P38 P43 P48 P53 FFFF 27 amp 28 T39 T44 T49 T54 FFFF 29 amp 30 39 S44 S49 S54 FFFF 31 amp 32 4 Tp Sp and Pp are Park Temperature Salinity and Pressure values Ps
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