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1. ccc ccce 37 4277 Temperature C ITS 90 ttt tttt 0 8070 Pressure decibars ppppp pp 1665 66 Oxygen ml l 00 00 7 31 Engineering Units in Hexadecimal but raw oxygen DDHs f and DAHs f Command Data is output in the order listed with no spaces or commas between parameters Shown with each parameter are the number of digits and how to calculate the parameter from the data use the decimal equivalent of the hexadecimal data in the equations 1 Conductivity mmho cm ccecce 10 000 0 5 If ccecce lt 0 5 decimal ccecce is set to 00000 If ccccc gt 95 0 decimal cecce is set to FFFFF 2 Temperature C ITS 90 ttttt 10 000 5 If ttttt lt 5 decimal ttttt is set to 00000 If ttttt gt 35 0 decimal ttttt is set to FFFFF 3 Pressure decibars ppppp 100 10 If ppppp lt 10 decimal ppppp is set to 00000 If ppppp gt 7000 decimal ppppp is set to FFFFF 4 Optional Oxygen Hz 0000 Example example scan ceccectttttpppppooco 5C98D0E2D628E8E3056 e Conductivity cecce 5C98D 379277 decimal conductivity Mmho cm 379277 10 000 0 5 37 4277 e Temperature ttttt OE2D6 58070 decimal temperature C ITS 90 58070 10 000 5 0 8070 e Pressure ppppp 28E8E 167566 decimal pressure decibars 167566 100 10 1665 66 e Oxygen 0000 3056 12374 decimal oxygen Hz 12374 34 Section 4 Deploying and Operating SB
2. Section 1 Introduction escscsctes oiessee ccaceceansancsusdcsessceveccocseodevsuceccuvoessecevee 4 About this Mamtial csi s csccescccasescdeciacectecsvandoscaveccavseesscescaesncptdecvedsncaceccunesccedenened 4 How to Contact Sea Bird cecceeccesseesseesceesceeeceeeceeceseceaeeaecnaecaeecneeeaeeeneeneesae 4 Quick Start sce eects eect ee ete Biocon eee RS E 4 Unpacking SBE 52 MPini cn iihs coat entie ud Soni hens E E e desis band oe ele 5 Section 2 Description of SBE 52 MP u ccsssccsssscssssccssscsssesssseceseces 6 System Descriptlotis ans dssisthton Aang duane loe aerate aE E E te 6 Specifications ts assists Soi Ee EEE E EE E E EE SOM 8 Dimensions and Connectors ccccceecceescecceesceeseeeeceseceseceaecaeceaeceecaeeeaeeeaeeeneees 9 Data VO nien E A E E E E A 10 Section 3 Power and Communications Test scsccssssssssssssessees 11 Software Installations resna e e a E E ENE 11 Test Setups insense aenieei iste s aeeie nota leu wets E EASE 11 EEEE E E E E E A EE te ts 12 Section 4 Deploying and Operating SBE 52 MP sscsssccssssees 16 Sampling M deSis eiar eea ea aE aa EEE R EEEE Si REEERE As 16 AUtonomouS Sampling serieei eiea ieran erin ais eeraa ess 17 Polled Sampingan ilaa eeraa a a ai aE aR 18 Command DesctiPtion S res sir keee rerata ra aaea Tar aTa R ER KeS EEs 19 Data Output Formats ccscssscsccssssesvesstcsseessesssacsaedsteachsssotdeesbessoessnsotitateastsesseeetecs 34 Optimizing Data Quality is
3. pin ground on the 52 MP OR MCBH Connector Install the cable connector aligning the pins 2 Connect the other end of the I O cable to your controller and power supply See Dimensions and Connectors in Section 2 Description of SBE 52 MP for pinout details 11 Section 3 Power and Communications Test Test Notes e SEATERM can be used to set up the 52 MP only If you have a 52 MP with an RS 232 interface or are using a logic level to RS 232 converter with a 52 MP with a logic level interface e See SEATERM s help files Note SEATERM has not been revised to explicitly include the 52 MP When using SEATERM with the 52 MP select the SBE 49 the SBE 49 uses the same data bits stop bit and parity Note There is at least one way and as many as three ways to enter a command Manually type a command in Command Data Echo Area Use a menu to automatically generate a command Use a Toolbar button to automatically generate a command Note Once the system is configured and connected Steps 3 through 4 below to update the Status bar e onthe Toolbar click Status or e from the Utilities menu select Instrument Status SEATERM sends the status command which displays in the Command Data Echo Area and updates the Status bar 1 Double click on SeaTerm exe If this is the first time the program is used the setup dialog box may appear i SeaTerm Setup x The init
4. voltage output sensor Sensor Interface Temperature is acquired by applying an AC excitation to a bridge circuit containing an ultra stable aged thermistor with a drift rate of less than 0 002 C per year The other elements in the bridge are VISHAY precision resistors A 24 bit A D converter digitizes the output of the bridge AC excitation and ratiometric comparison avoids errors caused by parasitic thermocouples offset voltages leakage currents and reference errors Conductivity is acquired using an ultra precision Wien Bridge oscillator to generate a frequency output in response to changes in conductivity Strain gauge pressure is acquired by applying an AC excitation to the pressure bridge A 24 bit A D converter digitizes the output of the bridge AC excitation and ratiometric comparison avoids errors caused by parasitic thermocouples offset voltages leakage currents and reference errors A silicon diode embedded in the pressure bridge is used to measure the temperature of the pressure bridge This temperature is used to perform offset and span corrections on the measured pressure signal 52 endix Il Electronics Disassembly Reassembl Appendix II Electronics Disassembly Reassembly Jackscrew kit Sea Bird provides a jackscrew kit with the SBE 52 MP to assist in removal of the sensor end cap The kit contains e 2 Allen wrenches e 3 jackscrews e 2 spare plastic socket hex head screws Verify that all
5. Operating SBE 52 MP Note F floating point number S string with no spaces Coefficients Commands continued Use the commands listed below to modify a particular coefficient or date Temperature TCALDATE S TAO0 F TA1 F TA2 F TA3 F Conductivity CCALDATE S CG F CH F CI F CJ F CPCOR F CTCOR F WBOTC F Pressure PCALDATE S PAO0 F PA1 F PA2 F PTCA0 F PTCA1 F PTCA2 F PTCBO F PTCB1 F PTCB2 F PTHA0 F PTHA1 F PTHA2 F POFFSET F Optional Oxygen OCALDATE S OXSOC F OXFOF F OXA F OXB F OXC F OXE F RESETOFFSET 33 S calibration date F A0 F A1 F A2 F A3 S calibration date F G F H F I F J F pcor F tcor F conductivity temperature S calibration date F A0 F A1 F A2 F pressure temperature compensation ptca0 F pressure temperature compensation ptcal F pressure temperature compensation ptca2 F pressure temperature compensation ptcb0 F pressure temperature compensation ptcb1 F pressure temperature compensation ptcb2 F pressure temperature a0 F pressure temperature al F pressure temperature a2 F pressure offset decibars S calibration date F SOC F F offset Sample pressure for 1 minute Convert raw pressures to decibars and calculate average Set POFFSET to sum of existing POFFSET and calculated average Example Assume 52 MP has POFFSET 1 db programmed in its EEPROM With 52 MP at atmospheric pressure at sea level send RESETOFFSET assume 5
6. SBE 52 MP 13 Section 3 Power and Communications Test Note SEATERM has not been revised to 3 Inthe Configure menu select SBE 49 The dialog box looks explicitly include the 52 MP like this Select the SBE 49 in SEATERM s Configure menu the SBE 49 uses SBE 49 Configuration Options the same data bits stop bit and x parity as the 52 MP Computer COM port baud rate data bits and parity for communication between computer and 52 MP 52 MP only communicates at 9600 baud Notes e SEATERM s baud rate must be the same as the 52 MP baud rate 9600 When you click OK SEATERM saves the Configuration Options settings to the SeaTerm ini file in your Windows directory SeaTerm ini contains the last saved settings for each instrument When you open SEATERM and select the desired instrument SBE 37 49 etc in the Configure menu the Configuration Options dialog box shows the last saved settings for that instrument Header Information COH Settings Upload Settings Interface for communication between computer and 52 MP Mode RS 232 Full Duplex C AS 485 Halt Duplex Inductive Modem Data Bits CI oes m Modem RS485 ID Parity Prompt iD C Even C Odd None C Automatically get ID Cancel Default Help x _ Make the selections in the Configuration Options dialog box C
7. as they will damage the connectors 2 Connect the other end of the I O cable to the moored profiler s controller and power supply See Dimensions and Connectors in Section 2 Description of SBE 52 MP for pinout details Oxygen sensor cable or dummygplug m 3 Mount the 52 MP to the moored profiler Note that there is a 3 8 16 hole in the sensor end cap which may be used as a locator or mounting hole 4 Verify that the hardware and external fittings are secure e Without oxygen sensor Verify that the dummy plug is installed in the oxygen sensor bulkhead connector on the 52 MP sensor end cap e With oxygen sensor Verify that the oxygen sensor cable is securely attached to the oxygen sensor and to the 52 MP sensor end cap 5 If caps were placed on the end of the T C Duct and exhaust to keep dust and debris out of the system during storage Remove the caps from the end of the T C Duct and the pump exhaust 6 Install the moored profiler on the mooring See Deployment Recovery Technique and Pump Operation in Optimizing Data Quality above for Sea Bird recommendations on orienting the SBE 52 MP during deployment to minimize contamination of the conductivity cell and oxygen sensor membrane with surface oils as it enters the water PRemove cap Sal from end of 7 Remove z s exhaust cap from end Bear of T C Duct STARTPROFILE STARTPROFILEN RESUMEPROFILE or RESUMEPROFILEN to begin sampling When ready to beg
8. data in memory has been uploaded before you remove power from the 52 MP when power is removed data stored in memory is lost The 52 MP should retain the user input parameters however as a precaution send the status command DS before you begin to have a record of the setup Disassembly Titanium Plastic hex head hex head screw 4 screw 3 Remove the sensor end cap and attached electronics PCB assembly as follows 1 Wipe the outside of the end cap and housing dry being careful to remove any water at the seam between them 2 Remove the 4 titanium hex head screws securing the sensor end cap to the housing 3 Remove the 3 plastic hex head screws from the end cap using the larger Allen wrench Insert the three jackscrews in these three holes in the end cap When you begin to feel resistance use the smaller Allen wrench to continue turning the screws Turn each screw 1 2 turn at a time As you turn the jackscrews the end cap will push away from the housing When the end cap is loosened pull it and the PCB assembly out of the housing 4 Remove any water from the O rings and mating surfaces inside the housing with a lint free cloth or tissue 5 Disconnect the Molex connector connecting the PCB assembly to the data I O bulkhead connector 6 Be careful to protect the O rings from damage or contamination Reassembly Note Before delivery a desiccant package is placed in the housing and the electronics cham
9. e Conductivity temperature and pressure in engineering units optional oxygen in raw units OUTPUTCTDO Y e Conductivity temperature pressure pressure temperature and optional oxygen in raw units OUTPUTCTDORAW Y OUTPUTPRESSURE x x Y Output real time pressure in ASCII engineering units ppppp pp decibars while autonomous sampling x N Do not output real time pressure while autonomous sampling Notes If outputting real time data OUTPUTSN x x Y Out Y put real time sample number SCG Ee 5 digits while autonomous sampling OUTPUTCTDORAWSY or x N Do not output real time sample OUTPUTSN Y the 52 MP number while autonomous sampling measures all parameters and then transmits the real time data while OUTPUTCTDO x i x Y Output real time conductivity making the next measurement temperature and pressure in ASCII engineering units and optional oxygen frequency ccc cccc mmho cm ttt tttt C ppppp pp decibars o0000 0 Hz while autonomous sampling x N Do not output real time data while autonomous sampling OUTPUTCTDORAW x x Y Output raw real time data conductivity cccc ccc Hz temperature tttttt t A D counts pressure pppppp p A D counts pressure temperature VVVVvv v A D counts optional oxygen oo000 0 Hz while autonomous sampling x N Do not output raw real time data while autonomous sampling 22 Section 4 Deploying and Operating SBE 52 MP Bin Averaging Commands The SBE
10. the slow SC EERO EN aes hepi speed provides adequate flushing of the system while minimizing the power required the pump aaa te nine The 52 MP can be set to transmit in real time the pressure sample number it without water except for very short sample number and pressure or conductivity temperature pressure and periods will damage it If testing your optional oxygen in converted or raw units see Real Time Output Commands system in dry conditions fill the inside Do not remove power from the 52 MP before uploading data if power is of the pump head with water via the removed any data in memory will be lost pump exhaust tubing This will provide enough lubrication to prevent pump STARTPROFILE Do not use unless all previous data has damage during testing been uploaded Set sample number for first sample to 0 and bin number for first bin to 0 resets 52 MP to start saving data to beginning of memory overwriting previous data in memory and making entire memory available for recording start pump and start autonomous sampling STARTPROFILEN Do not use unless all previous data has been uploaded Set sample number for first sample to 0 and bin number for first bin to 0 resets 52 MP to start saving data to beginning of memory overwriting previous data in memory and making entire memory available for recording start pump and let pump run for N seconds and then with pump continuing to run start autonomous sampling RES
11. then send any character to wake up 52 MP S gt PTS Remove power Example 2 Apply power and send any character to wake up 52 MP Command 52 MP to turn pump on take a sample and output raw data and turn pump off Remove power Repeat as desired Apply power then send any character to wake up 52 MP S gt PUMPON S gt TSR S gt PUMPOFF Remove power 18 Section 4 Deploying and Operating SBE 52 MP Command Descriptions This section describes commands and provides sample outputs See Appendix III Command Summary for a summarized command list When entering commands e Input commands to the 52 MP in upper or lower case letters and register commands by pressing the Enter key e The 52 MP sends CMD if an invalid command is entered e Ifthe system does not return an S gt prompt after executing a command press the Enter key to get the S gt prompt e Establish communications by pressing Connect on the Toolbar or sending any character to get the S gt prompt e Ifthe 52 MP is transmitting data and you want to stop it send STOPPROFILE click Stop on the Toolbar or type Ctrl Z Press the Enter key or send any character to get the S gt prompt e The 52 MP responds only to SLP and STOPPROFILE while sampling Entries made with the commands are permanently stored in the 52 MP in non volatile RAM and remain in effect until you change them Removing power does not affect the user programmed setup 19 Sec
12. to 150 etc Example 2 If top section maximum pressure is 100 db middle bin interval is 20 db and middle bin size is 16 db first middle bin is centered at 120 and goes from 112 to 128 second middle bin is centered at 140 and goes from 132 to 148 etc x maximum pressure for middle section decibars For best results set so center of last middle bin is at MIDDLE_BIN_MAX Section 4 Deploying and Operating SBE 52 MP Bin Averaging Commands continued BOTTOM_BIN_INTERVAL x x spacing between bin centers for bottom section decibars Example If middle section maximum pressure is 1000 db and bottom bin interval is 50 db bottom section bin centers are at 1050 1100 etc BOTTOM _BIN_SIZE x x bin size for bottom section decibars Scans from bin center to BOTTOM BIN_SIZE 2 are included in data for bin For typical use set BOTTOM _BIN_SIZE equal to BOTTOM_BIN_INTERVAL Example 1 If middle section maximum pressure is 1000 db bottom bin interval is 50 db and bottom bin size is 50 db first bottom bin is centered at 1050 and goes from 1025 to 1075 second bottom bin is centered at 1100 and goes from 1075 to 1125 etc Example 2 If middle section maximum pressure is 1000 db bottom bin interval is 50 db and bottom bin size is 40 first bottom bin is centered at 1050 and goes from 1030 to 1070 second bottom bin is centered at 1100 db and goes from 1080 to 1120 etc INCLUDETRANSITIONBIN x x Y Calculate trans
13. 2 MP calculates average pressure as 0 5 db 52 MP then sets POFFSET 1 5 1 db 0 5 db Section 4 Deploying and Operating SBE 52 MP Data Output Formats Notes e The 52 MP s pressure sensor is an absolute sensor so its raw output includes the effect of atmospheric pressure 14 7 psi As shown on the Calibration Sheet Sea Bird s calibration and resulting calibration coefficients is in terms of psia However when outputting pressure in engineering units the 52 MP outputs pressure relative to the ocean surface i e at the surface the output pressure is 0 decibars The 52 MP uses the following equation to convert psia to decibars Pressure db pressure psia 14 7 0 689476 Data Uploaded from Memory Output format is dependent on the command used to upload the data Each line of data is ended with a carriage return and line feed Engineering Units in Decimal DDs f and DAs f Command Data is output in the order listed There is a comma between each parameter Shown with each parameter are the number of digits and the placement of the decimal point Leading zeros are suppressed except for one zero to the left of the decimal point 1 Conductivity mmho cm ccc cccc 2 Temperature C ITS 90 ttt tttt 3 Pressure decibars ppppp pp 4 Optional Oxygen ml l 00 00 Example example scan ccc cccc ttt tttt ppppp pp co 0o 37 4277 0 8070 1665 66 7 31 Conductivity mmho cm
14. 52 MP can average data into bins based on pressure ranges after a profile is completed The 52 MP processes approximately 52 scans per second when calculating the bins The 52 MP stores bin averaged data in a separate part of the memory than where the full data set is stored The user can upload the full data set the bin averaged data or both The algorithm the 52 MP uses for bin averaging is described below For each bin BinMin bin center value bin size 2 BinMax bin center value bin size 2 1 Add together valid data for scans with BinMin lt pressure lt BinMax Divide the sum by the number of valid data points to obtain the average 3 Interpolate as follows and write the interpolated value to memory P average pressure of previous bin X average value of variable in previous bin P average pressure of current bin X average value of variable in current bin P center value for pressure in current bin X interpolated value of variable value at center pressure P X X Pi Pp P Pp Xp 4 Repeat Steps 1 through 3 for each variable 5 Compute the center value and Repeat Steps 1 through 4 for the next bin Values for the first bin are interpolated after averages for the second bin are calculated values from the next second bin instead of the previous bin are used in the equations Starting Bin Averaging AUTOBINAVG x x Y Automatically average stored data into bins when autonomous sam
15. E 52 MP Engineering Units in Binary but raw oxygen DDBs f and DABs f Command Data is output in the order listed with no spaces or commas between parameters Shown with each parameter are the number of digits and how to calculate the parameter from the data use the decimal equivalent of the binary data in the equations 1 Conductivity mmho cm ccc 10 000 0 5 If ccc lt 0 5 decimal ccc is set to 00000 hex If ccc gt 95 0 decimal ccc is set to FFFFF hex 2 Temperature C ITS 90 ttt 10 000 5 If ttt lt 5 decimal ttt is set to 00000 hex If ttt gt 35 0 decimal ttt is set to FFFFF hex 3 Pressure decibars ppp 100 10 If ppp lt 10 decimal ppp is set to 00000 hex If ppp gt 7000 decimal ppp is set to FFFFF hex 4 Optional Oxygen Hz oo Example example scan ccctttpppoo 0000010111001001100011010000000011100010110101100000001010001110100011100011000001010110 e Conductivity ccc 000001011100100110001101 379277 decimal conductivity mmho cm 379277 10 000 0 5 37 4277 e Temperature ttt 000000001 110001011010110 58070 decimal temperature C ITS 90 58070 10 000 5 0 8070 e Pressure ppp 000000101000111010001110 166566 decimal pressure decibars 167566 100 10 1665 66 e Oxygen 00 0011000001010110 12374 decimal oxygen Hz 12374 Real Time Data Each line of data is ended with a carriage return and l
16. MP takes one sample and transmits the The 52 MP does not echo characters received from the computer Therefore the commands you send data real time e PTS command 52 MP runs the pump before sampling ensuring for example DS will not appear in a conductivity and optional dissolved oxygen measurement based on a the SEATERM display Commands fresh water sample are shown in the example below for Oxygen sensor response time and the corresponding length of time the illustration only pump needs to run before taking a sample is dependent on temperature and pressure Oxygen sensor response time increases with increasing pressure and decreasing temperature Therefore the 52 MP takes a preliminary measurement of temperature and pressure but does not store the preliminary values in memory uses those values to calculate the required pump time runs the pump and then takes a fresh measurement of all parameters e TS or TSR command 52 MP pump does not turn on automatically before sampling To run the pump before taking a sample send PUMPON to turn the pump on before sending TS or TSR Send PUMPOFF to turn the pump off after taking the sample Example Polled Sampling user input in bold Example 1 Apply power and send any character to wake up 52 MP Command 52 MP to take a sample and output data in ASCII engineering units using PTS command automatically runs pump for sample Remove power Repeat as desired Apply power
17. MPOFF when the data has been received See the CAUTION above about running the pump dry Polled Sampling Commands PTS TS TSR FP 30 Run pump take 1 sample of all parameters transmit data in ASCII engineering units conductivity ccc cccc mmho cm temperature ttt tttt C pressure ppppp pp decibars optional oxygen 00 000 ml l and turn pump off Length of time that pump runs Oxygen sensor response time and corresponding length of time pump needs to run before taking sample is dependent on temperature and pressure 52 MP takes preliminary measurement of T and P uses those values to calculate pump time but does not store values in memory runs pump and then takes fresh measurement of all parameters Pump time increases with increasing P and decreasing T For example if T 0 C P 1000 db total pump time 44 6 sec T 30 C P 0 db total pump time 9 8 sec Maximum total pump run time is 55 sec Total pump time consists of fast speed remove any debris from the system and rapidly bring in a new water sample followed by slow speed provide adequate flushing of system while minimizing power required 52 MP calculates optimal time for pump to operate at each speed Take 1 sample of all parameters and transmit data in ASCII engineering units conductivity ccc ccce mmho cm temperature ttt tttt C pressure ppppp pp decibars optional oxygen 00 000 ml I This command does not run pump before sam
18. OFF automatic bin averaging when p lt 5 0 disabled AUTOBINA VG number of samples 10050 number of bins 39 top bin interval 10 TOP_BIN_INTERVAL top bin size 10 TOP_BIN_SIZE top bin max 100 TOP_BIN_MAX middle bin interval 50 MIDDLE_BIN_INTERVAL middle bin size 50 MIDDLE_BIN_SIZE middle bin max 1000 MIDDLE_BIN_MAX bottom bin interval 100 BOTTOM_BIN_INTERVAL bottom bin size 100 BOTTOM_BIN_SIZE do not include two transition bins INCLUDETRANSITIONBIN oxygen frequency multiplier 1 00 OXMULTIPLIER 20 Section 4 Deploying and Operating SBE 52 MP Note If OVERWRITEMEMSY and you have filled and started to overwrite the memory uploading all data using DD engineering units DDH Hex or DDB Binary will provide newer data followed by older data Similarly if uploading all the bin averaged data in memory the newer data will be followed by the older data Example Overwrote first 10 000 samples of the 28 000 sample memory Samples 1 10 000 are data that was measured after samples 10 001 28 000 Note The 52 MP enters quiescent state automatically without sending QS if it is not sampling and does not receive a command for 2 minutes Setup Commands PCUTOFF x OVERWRITEMEM x INITPROFILE OXMULTIPLIER x 21 x pressure cutoff decibars 52 MP automatically stops autonomous sampling when pressure is less than PCUTOFF x Y Res
19. OMM Port COM 1 through COM 10 as applicable Baud Rate 9600 only valid baud rate for 52 MP Data Bits 8 Parity None Mode RS 232 Full Duplex Click OK to save the settings Click Connect on the Toolbar or send any character SEATERM tries to connect to the 52 MP When it connects the display looks like this S gt This shows that correct communications between the computer and the 52 MP has been established If the system does not respond with the S gt prompt e Click Connect or send any character again e Verify the SBE 49 was selected in the Configure menu and the settings were entered correctly in the Configuration Options dialog box e Check cabling between the computer and 52 MP 14 Note The 52 MP does not echo characters received from the computer Therefore the commands you send for example DS will not appear in the SEATERM display CAUTION Sending the PTS command causes the pump to turn on depending on temperature and pressure the pump may run for up to 55 seconds see Polled Sampling Commands in Section 4 Deploying and Operating SBE 52 MP Do not run the pump dry The pump is water lubricated running it without water except for very short periods will damage it If testing your system in dry conditions fill the inside of the pump head with water via the pump exhaust tubing This will provide enough lubrication to prevent pump damage during testing Section 3 Power and Co
20. PU 64 Mbyte RAM Windows 98 or later If not already installed install SEATERM terminal program and other Sea Notes Bird software programs on your computer using the supplied software CD If your 52 MP has an RS 232 interface or using a logic level to 1 Insert the CD in your CD drive RS 232 converter with a 52 MP that has a logic level interface e SEATERM can be used to set up the 52 MP e Alternatively it is possible to use the 52 MP without SEATERM by 2 Double click on Seasoft Win32 exe 3 Follow the dialog box directions to install the software sending direct commands from a The default location for the software is c Program Files Sea Bird Within that dumb terminal or terminal folder is a sub directory for each program The installation program allows emulator such as Windows you to install the desired components Install all the components or just HyperTerminal install SEATERM Test Setup 1 Remove the dummy plug and install the I O cable A By hand unscrew the locking sleeve from the 52 MP s I O connector If you must use a wrench or pliers be careful not to loosen the I O connector instead of the locking sleeve B Remove the dummy plug from the 52 MP s I O connector by pulling the plug firmly away from the connector C Standard Connector Install the Sea Bird I O cable connector aligning the raised bump on the side of the connector with the large Locking x sleeve plug pin
21. RS ACTIVE INGREDIENT Bis tributyltin oxide OTHER INGREDIENTS 00 ccc ceeeeeeeeceeeeee ene eenees 47 0 100 0 DANGER See the complete label within the Conductivity Instrument Manual for Additional Precautionary Statements and Information on the Handling Storage and Disposal of this Product Net Contents Two anti foulant devices Sea Bird Electronics Inc EPA Registration No 74489 1 1808 136 Place Northeast EPA Establishment No 74489 WA 1 Bellevue WA 98005 57 Appendix IV AF24173 Anti Foulant Device AF24173 Anti Foulant Device FOR USE ONLY IN SEA BIRD ELECTRONICS CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS ACTIVE INGREDIENT Bis tributyltin Oxide 0 cece cee ceee cece eee ce cena ee eeaenenees 53 0 OTHER INGREDIENTS cccecc cece ee ee teense n eases 47 0 DOUALA So et Seale soca s wads EEE hed pei oA oe baa aaa eS 100 0 DANGER See Precautionary Statements for additional information FIRST AID If on skin or Take off contaminated clothing clothing Rinse skin immediately with plenty of water for15 20 minutes Call a poison control center or doctor for treatment advice If swallowed Call poison control center or doctor immediately for treatment advice Have person drink several glasses of water Do not induce vomiting Do not give anything by mouth to an unconscious person If in eyes Hold eye open and
22. RTPROFILEN Do not use unless all data has been uploaded Set sample number for first sample to 0 and bin number for first bin to 0 start saving data to beginning of memory overwriting previous data and making entire memory available for recording start pump and let pump run for N seconds and then with pump continuing to run start autonomous sampling RESUMEPROFILE RESUMEPROFILEN Start pump and start autonomous sampling new data is stored to memory after previously saved data Start pump and let run for N seconds then with pump running start autonomous sampling new data is stored to memory after previously saved data STOPPROFILE Stop pump and autonomous sampling Press Enter key to get S gt prompt before sending command SLP Send last sample of pressure data from memory in ASCII engineering units while autonomous sampling is in progress DTDP Transmit last calculated value for dt dp Fast Pressure Data Upload TFP DDN Measure pressure at approximately 4 Hz 0 25 seconds sample transmit converted data db Press Esc key or Stop on Toolbar to stop sampling Display number of samples unaveraged in memory up to 5 characters followed by carriage return and line feed DDs f Upload all data unaveraged from sample s to f in ASCII engineering units If s f omitted all data uploaded First sample number is 0 DDHs f Upload all data unaveraged from sample s to f
23. SBE 43F Dissolved Oxygen Sensor e Wet pluggable MCBH connector in lieu of standard XSG I O connector Note The 52 MP is supplied with a powerful Win 95 98 NT 2000 XP software See SEATERM s Help files package SEASOFT Win32 which includes SEATERM a terminal program for instrument setup and communication Section 2 Description of SBE 52 MP Specifications Temperature C Conductivity Pressure Optional Dissolved Oxygen 0 to full scale range 20 100 350 600 120 of surface Measurement Range 5 to 35 Oto Z Sem 1000 2000 3500 saturation in all natural 0 to 90 Mmhoiem 7000 meters waters fresh and salt expressed in meters of deployment depth capability E 0 0003 S m 0 1 of z Initial Accuracy 0 002 0 003 mmho cm full scale range 2 of saturation Typical Stability 0 0003 S m 0 004 of R per month 0 0002 0 003 mmho cm full scale range ere per 1000 ho rs 0 00005 S m 0 0005 mmho cm oceanic waters resolves 0 4 ppm in salinity 0 00007 S m 0 035 of saturation 0 0007 mmho cm 0 002 of corresponds to Resolution 0 0001 high salinity waters full scale range 0 003 ml l at resolves 0 4 ppm 0 C and 35 PSU in salinity 0 00001 S m 0 0001 mmho cm fresh waters resolves 0 1 ppm in salinity Sensor Calibration PEE measurement outside zero conductivity air Ambient pressure to ial iei ai these ranges may be at 1 to 32 plus 2 6 to 6 S m full scale range in pp slightly reduce
24. SBE 52 MP Moored Profiler CTD and Optional DO Sensor Conductivity Temperature Pressure and Optional Dissolved Oxygen Sensor with Logic Level or RS 232 Interface Standard SBE 52 MP no Dissolved Oxygen Sensor User s Manual Sea Bird Electronics Inc 1808 136 Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Fax 425 643 9954 E mail seabird seabird com Manual Version 005 05 30 06 Website www seabird com Firmware Version 2 1 and later Limited Liability Statement Extreme care should be exercised when using or servicing this equipment It should be used or serviced only by personnel with knowledge of and training in the use and maintenance of oceanographic electronic equipment SEA BIRD ELECTRONICS INC disclaims all product liability risks arising from the use or servicing of this system SEA BIRD ELECTRONICS INC has no way of controlling the use of this equipment or of choosing the personnel to operate it and therefore cannot take steps to comply with laws pertaining to product liability including laws which impose a duty to warn the user of any dangers involved in operating this equipment Therefore acceptance of this system by the customer shall be conclusively deemed to include a covenant by the customer to defend indemnify and hold SEA BIRD ELECTRONICS INC harmless from all product liability claims arising from the use or servicing of this system Table of Contents Table of Contents
25. Temperature C ITS 90 ttt tttt Pressure decibars ppppp pp Optional Oxygen Hz 00000 0 oN Example example scan ccc cccec ttt tttt ppppp pp 00000 0 35 4791 6 9892 182 25 5134 8 e Conductivity mmho cm ccc cece 35 4791 e Temperature C ITS 90 ttt tttt 6 9892 e Pressure decibars ppppp pp 182 25 e Oxygen Hz 00000 0 5134 8 OUTPUTCTDORAW 2Y raw real time C T P and O Data is output in the order listed There is a comma between each parameter Shown with each parameter are the number of digits and the placement of the decimal point Leading zeros are suppressed except for one zero to the left of the decimal point Conductivity Hz cccc ccc Temperature A D counts tttttt t Pressure A D counts pppppp p Pressure temperature A D counts vvvvvv v Optional Oxygen Hz 00000 0 Pe ho Example example scan cccc ccc tttttt t pppppp p VVvvvvv v 00000 0 5970 384 524372 4 32768 0 2690 0 5138 3 Conductivity Hz cccc ccc 5970 384 Temperature A D counts tttttt t 524372 4 Pressure A D counts pppppp p 32768 0 Pressure temperature A D counts vvvvvv v 2690 0 Oxygen Hz 00000 0 5138 3 36 Section 4 Deploying and Operating SBE 52 MP Optimizing Data Quality This section contains guidelines for obtaining the best quality data with the SBE 52 MP Some of these guidelines may conflict with the goals of a particular app
26. UMEPROFILE Start pump and start autonomous sampling new data is stored to memory after previously saved data RESUMEPROFILEN Start pump and let pump run for N seconds then with pump continuing to run start autonomous sampling new data is stored to memory after previously saved data Notes STOPPROFILE Stop pump and stop autonomous sampling e You may need to send P Fat rkeyi ts f STOPPROFILE several times to get PEPE 1O BEES Z bee the 52 MP to respond before entering STOPPROFILE e Autonomous sampling stops automatically if SLP Send last sample of pressure data from gt pressure is less than the pressure memory in ASCII engineering units cutoff PCUTOFF or ppppp pp decibars 52 MP responds to gt S2 MP memory is full and SLP only while autonomous sampling OVERWRITEMEM N can hold up to 28 000 samples at 1 second sample this corresponds to 28 000 seconds of autonomous sampling 27 Section 4 Deploying and Operating SBE 52 MP Autonomous Sampling Commands continued DTDP Transmit last calculated value for dt dp 52 MP calculates dt dp each time you send STOPPROFILE if autonomous sampling was started with RESUMEPROFILE or RESUMEPROFILEN dt dp t t orp P orp p where t temperature from last sample before receiving STOPPROFILE p pressure from last sample before receiving STOPPROFILE t op temperature from last sample before receiving previous STOPPROFILE P olp pressure fr
27. X x MIDDLE_BIN_INTERVAL x MIDDLE_BIN_SIZE x MIDDLE_BIN_MAX x 25 X spacing between bin centers for top section decibars Example If top bin interval is 10 db top section bin centers are at 0 10 20 etc x bin size for top section decibars Scans from bin center to TOP_BIN_SIZE 2 are included in data for bin For typical use set TOP_BIN_SIZE equal to TOP_BIN_INTERVAL Example 1 If interval is 10 db and bin size is 10 db first bin is centered at 10 and goes from 5 to 15 second bin is centered at 20 and goes from 15 to 25 etc Example 2 If interval is 10 db and bin size is 8 db first bin is centered at 10 and goes from 6 to 14 second bin is centered at 20 and goes from 16 to 24 etc x maximum pressure for top section db For best results set so center of last top bin is at TOP_BIN_MAX X spacing between bin centers for middle section decibars Example If top section maximum pressure is 100 db and middle bin interval is 20 db middle section bin centers are at 120 140 etc x bin size for middle section decibars Scans from bin center to MIDDLE_BIN_SIZE 2 are included in data for bin For typical use set MIDDLE_BIN_SIZE equal to MIDDLE_BIN_INTERVAL Example 1 If top section maximum pressure is 100 db middle bin interval is 20 db and middle bin size is 20 db first middle bin is centered at 120 and goes from 110 to 130 second middle bin is centered at 140 and goes from 130
28. ance CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connector I O cable dummy plug locking sleeve I O abla dummy plug A mated connector does not require periodic disassembly or other attention Inspect a connector that is unmated for signs of corrosion product around the pins When remating 1 Lightly lubricate the inside of the dummy plug cable connector with silicone grease DC 4 or equivalent 2 TO Connector Standard XSG 4 BCL HP SS Connector Install the plug cable connector aligning the raised bump on the side of the plug cable connector with the large pin pin 1 ground on the 52 MP Remove any trapped air by burping or gently squeezing the plug connector near the top and moving your fingers toward the 52 MP OR Optional MCBH 4MP WB TI Connector Install the plug cable connector aligning the pins 3 Optional Oxygen Sensor IE55 Impulse Connector Install the plug cable connector aligning the pins 4 Place the locking sleeve over the plug cable connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Verify that cables are installed before deployment 43 Section 5 Routine Maintenance and Calibration Conductivity Cell Maintenance CAUTIONS e Do not put a brush or any object inside the conductivity cell to dry it or clean it Touching and bending the electrodes can ch
29. ange the calibration Large bends and movement of the electrodes can damage the cell Do not store the 52 MP with water in the conductivity cell Freezing temperatures for example in Arctic environments or during air shipment can break the cell if it is full of water The SBE 52 MP s conductivity cell is shipped dry to prevent freezing in shipping Refer to Application Note 2D Instructions for Care and Cleaning of Conductivity Cells for rinsing cleaning and storage procedures and materials Pressure Sensor Maintenance Pressure sensor g port plug CAUTION Do not put a brush or any object in the pressure port Doing so may damage or break the pressure sensor Oxygen Sensor Maintenance CAUTIONS e Do not use a brush or any object on the oxygen sensor membrane to clean it as you may tear it Do not store the 52 MP with water in the oxygen sensor plenum Freezing temperatures for example in Arctic environments or during air shipment can tear the membrane if the plenum is full of water At the factory the pressure sensor and pressure port were filled with a silicon oil and a pressure port plug was used to retain the oil The oil transmits hydrostatic pressure to the pressure sensor inside the instrument Because of the viscosity of the silicone oil the oil does not run out of the pressure sensor port plug However due to temperature and pressure cycling over long periods it is n
30. arately from other laundry e Wash hands with soap and water before eating drinking chewing gum using tobacco or using the toilet ENVIRONMENTAL HAZARDS Do not discharge effluent containing this product into lakes streams ponds estuaries oceans or other waters unless in accordance with the requirements of a National Pollutant Discharge Elimination System NPDES permit and the permitting authority has been notified in writing prior to discharge Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority For guidance contact your State Water Board or Regional Office of EPA This material is toxic to fish Do not contaminate water when cleaning equipment or disposing of equipment washwaters PHYSICAL OR CHEMICAL HAZARDS Do not use or store near heat or open flame Avoid contact with acids and oxidizers DIRECTIONS FOR USE It is a violation of Federal Law to use this product in a manner inconsistent with its labeling For use only in Sea Bird Electronics conductivity sensors Read installation instructions in the applicable Conductivity Instrument Manual 59 Appendix IV AF24173 Anti Foulant Device STORAGE AND DISPOSAL PESTICIDE STORAGE Store in original container in a cool dry place Prevent exposure to heat or flame Do not store near acids or oxidizers Keep container tightly closed PESTICIDE SPILL PROCEDURE In case of a spill absorb
31. atically average data into bins when Z autonomous sampling stopped because AUTOBINA VG x P lt PCUTOFF x N Do not Average stored data into bins now Send BINAVERAGE STOPPROFILE to stop autonomous sampling before sending this command TOP_BIN_INTERVAL x x bin center spacing for top section db E x top section bin size db Scans from bin center to TOP_BIN_SIZE x TOP_BIN_SIZE 2 are included in data for bin TOP_BIN_MAX x x maximum pressure for top section db Bin 7 peren in x bin center spacing for middle section db Averaging x middle section bin size db Scans from bin MIDDLE_BIN_SIZE x center to MIDDLE_BIN_SIZE 2 are included in data for bin MIDDLE_BIN_MAX x x maximum pressure for middle section db A x bin center spacing for bottom section db x bottom section bin size db Scans from bin BOTTOM_BIN_SIZE x center to BOTTOM_BIN_SIZE 2 are included in data for bin INCLUDETRANSITION x Y Calculate transition bin between top and BIN x middle and between middle and bottom x N Do not 54 Appendix Ill Command Summary CATEGORY COMMAND DESCRIPTION Autonomous Sampling STARTPROFILE Do not use unless all data has been uploaded Set sample number for first sample to 0 and bin number for first bin to 0 start saving data to beginning of memory overwriting previous data and making entire memory available for recording start pump and start autonomous sampling STA
32. ber is filled with dry Argon gas These measures help prevent condensation To ensure proper functioning 1 Install a new desiccant bag each time you open the housing If a new bag is not available see Application Note 71 Desiccant Use and Regeneration drying 2 If possible dry gas backfill each time you open the housing If you cannot wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the housing 1 Remove any water from the end cap O rings and mating surfaces in the housing with a lint free cloth or tissue Inspect the O rings and mating surfaces for dirt nicks and cuts Clean or replace as necessary Apply a light coat of O ring lubricant Parker Super O Lube to the O rings and mating surfaces 2 Reconnect the Molex connector to the data I O bulkhead connector Verify the connector holds and pins are properly aligned 3 Carefully fit the PCB assembly into the housing aligning the holes in the end cap and housing 4 Reinstall the 4 titanium hex head screws to secure the end cap to the housing 5 Reinstall the 3 plastic hex head screws in the end cap 6 No user programmable setup parameters should have been affected by the electronics disassembly send DS to verify 53 A endix Ill Command Summar Appendix Ill Command Summary CATEGORY COMMAND DESCRIPTION Status DS Display stat
33. d slow speed provides adequate flushing of system while minimizing power required PUMPFAST Turn pump on at fast speed PUMPSLOW Turn pump on at slow speed PUMPOFF Turn pump off Note These commands do not automatically turn on the pump Thus they report conductivity and optional oxygen from essentially the same sample of water for all 100 measurements because the pump does not run but the pump and associated plumbing prevent water from freely flowing through the conductivity cell and dissolved oxygen sensor To get conductivity and oxygen from fresh samples send PUMPON before sending a conductivity or oxygen testing command and then send PUMPOFF when the test is complete See the CAUTION above about running the pump dry Testing Commands The 52 MP samples and transmits data in ASCII engineering units for 100 samples for each test Data is not stored in SRAM memory Press the Esc key or Stop on the Toolbar to stop a test TC Measure conductivity transmit ASCII converted data cc ccccc mmho cm TT Measure temperature transmit ASCII converted data ttt tttt C TP Measure pressure and pressure temperature transmit ASCII converted data pppp ppp decibars tttt ttt C TO Measure optional oxygen transmit ASCII raw data 00000 00 Hz TCR Measure conductivity transmit ASCII raw data ccce ccc Hz TTR Measure temperature transmit ASCII raw data tttttt t A D counts TPR Measure pressur
34. d accuracy due to extrapolation errors 26 to 60 mmho cm 5 steps 2 6 12 20 26 and 30 C 18 points Power Requirements 3 Watts at 7 16 VDC consult factory for voltage outside this range Turn on transient 300 mA at 10V Quiescent sleep state 0 008 mA at 10V Awake but not sampling 5 2 mA at 10V Sampling includes pump 62 mA at 10V Memory Static RAM stores up to 28 000 samples of conductivity temperature pressure and dissolved oxygen data Note If external power is removed any data in memory is lost Housing Material and Depth Rating Standard 3AL 2 5V Titanium 7000 meters 22 900 feet Optional Plastic 600 meters 1960 feet Weight Titanium Housing In air 5 3 kg 11 8 Ibs In water 3 7 kg 8 2 Ibs Section 2 Description of SBE 52 MP Dimensions and Connectors 51 mm 429 mm 16 88 in 2 00 in diameter 129 mm 5 10 in d DO sensor optional ee Pats J oS eee oo 24 ee r oa N STEE AAN ARA Gog ES Ey S e E Wome we eT tae Ta Bee we ee eat iy ae tome enact yest STe a GOS ni T TEA ea 1 l IE55 W Standard Optional MCBH 4MP 1003 BCR lp Shi XSG 4 BCL WB TI 0 375 length l ATS Pin Description HP SS base 1 2 20 thread l 1141 Ground ae s l l 12 Logic Level or RS 232 Receive from controller o e l 2 1 i f pea es l l 3 Logic Level or RS 232 Transmit to cont
35. d permits mechanical connection to the pressure source Use a fitting that has an O ring tapered seal such as Swagelok 200 1 4ST which conforms to MS16142 boss Oxygen Sensor Calibration The optional oxygen sensor measures the flux of oxygen across a Teflon membrane The primary mechanism for calibration drift is the fouling of the membrane by chemical or biological deposits Fouling changes the membrane permeability resulting in a calibration shift Accordingly the most important determinant of long term sensor accuracy is the cleanliness of the membrane We recommend that the oxygen sensor be calibrated before and after deployment but particularly when the sensor has been exposed to contamination by oil slicks or biological material A technique is provided in Application Note 64 2 Dissolved Oxygen Sensor Calibration using Winkler Titrations for making small corrections to the oxygen sensor calibration by comparing oxygen output to Winkler titrations from water samples This application note was written for an SBE 43 Dissolved Oxygen Sensor a voltage output sensor incorporated with a profiling CTD integrated with a water sampler However the basic technique can be adapted for use with the 52 MP which incorporates the SBE 43F a frequency output version of the SBE 43 49 Section 6 Troubleshootin Section 6 Troubleshooting This section reviews common problems in operating the SBE 52 MP and provides the most likely causes an
36. d solutions Problem 1 Unable to Communicate with SBE 52 MP Note SEATERM can be used to set up the 52 MP only If you have a 52 MP with an RS 232 interface or are using a logic level to RS 232 converter with a 52 MP with a logic level interface Problem 2 Unreasonable Data The S gt prompt indicates that communications between the 52 MP and computer have been established Before proceeding with troubleshooting attempt to establish communications again by clicking Connect on SEATERM s toolbar or sending any character Cause Solution 1 The I O cable connection may be loose Check the cabling between the 52 MP and computer for a loose connection Cause Solution 2 The instrument type and or its communication settings may not have been entered correctly in SEATERM Select SBE 49 in the Configure menu and verify the settings in the Configuration Options dialog box baud rate must be 9600 to communicate with 52 MP The settings should match those on the instrument Configuration Sheet in the manual Cause Solution 3 The I O cable may not be the correct one or may not be wired properly to the controller See Dimensions and Connectors in Section 2 Description of SBE 52 MP for pinout details The symptom of this problem is data that contains unreasonable values for example values that are outside the expected range of the data Cause Solution 1 Conductivity temperature pressure or optional oxygen data with unr
37. e transmit ASCII raw data pppppp p A D counts for pressure tttttttt A D counts for pressure temperature TOR Same as TO 00000 00 Hz 31 Section 4 Deploying and Operating SBE 52 MP Notes e Dates shown are when calibrations were performed Calibration coefficients are initially factory set and should agree with Calibration Certificate shipped with 52 MP e See individual Coefficient Commands below for definitions of the data in the example Coefficients Commands DC Display calibration coefficients Equivalent to Coefficients on Toolbar Example Display coefficients user input in bold S gt de SBE 52 MP 2 1 SERIAL NO 0002 temperature 27 feb 05 TAO 1 587068e 05 TAL 2 734145e 04 TA2 2 120419e 06 TA3 1 513452e 07 conductivity 27 feb 05 G 1 034209e 00 He 1 415599 6 01 I 3 702509e 04 J 4 596847e 05 CPCOR 9 570001e 08 CTCOR 3 250000e 06 WBOTC 9 102695e 06 pressure S N 7418 range 10153 psia 18 feb 05 PAO 5 793196e 00 PA1 5 649696e 01 PA2 6 067437e 07 PTCAO 9 975864e 00 PTCAL 5 241532e 01 PTCA2 3 319472e 03 PTCBO 2 456025e 01 PTCB1 5 000000e 05 PTCB2 0 000000e 00 PTHAO 7 034930e 01 PTHAL 4 924383e 02 PTHA2 9 952137e 08 POFFSET 0 000000e 00 oxygen S N 2347 18 jun 05 Soc 2 282700e 04 Foffset 7 967825e 02 A 3 317500e 03 B 3 028800e 04 C 5 600400e 06 E 3 600000e 02 32 Section 4 Deploying and
38. e 50 Problem 3 Salinity Lower than Expected sseeseeeeeeesesrseseseerersersesrrrrerereses 50 CETT h APERE ETTE EEA 51 Appendix I Functional Description and Circuitry sseeee 52 Appendix II Electronics Disassembly Reassembly seee0 53 Appendix TIT Command Summary cscssssscssssscssesesssscsssecesseee 54 Appendix IV AF24173 Anti Foulant Device ccscccsscesseeeees 57 Appendix V Replacement Parts sssssssssssssssssssssssescessessesees 61 IT CES EEE ET E A TT 62 Section 1 Introduction Section 1 Introduction This section includes contact information Quick Start procedure and photos of a standard SBE 52 MP shipment About this Manual This manual is to be used with the SBE 52 MP Moored Profiler CTD and DO Sensor It is organized to guide the user from installation through operation and data collection We ve included detailed specifications command descriptions maintenance and calibration information and helpful notes throughout the manual Sea Bird welcomes suggestions for new features and enhancements of our products and or documentation Please e mail any comments or suggestions to seabird seabird com How to Contact Sea Bird Sea Bird Electronics Inc 1808 136 Place Northeast Bellevue Washington 98005 USA Telephone 425 643 9866 Fax 425 643 9954 E mail seabird seabird com Website http www seabird com Business hours Monday Fr
39. e plumbing allowing air to leave the system for optimal pump priming and equalizing Bernoulli pressures on the intake and exhaust Vertical Orientation Downcast Data Only The 52 MP can be used for obtaining downcast data when deployed in a vertical sensors down orientation This orientation with an inverted U shape to the plumbing makes it more difficult for air to leave the system The top 0 to 30 meters of data is suspect because the pump may not be operating properly until the air bubbles are collapsed due to water pressure For deployments where the 52 MP will be seeing many deep profiling cycles the issue of removal of air from the system for optimal pump performance may not be critical the 52 MP may be taking many tens or hundreds of profiles and only the data for the shallow part of the first profile would be affected by air in the plumbing If doing shallow profiles air in the system may take up to several days to completely dissipate on their own resulting in several days of poor data at the beginning of the deployment Although the 52 MP can obtain downcast data in this orientation the 52 MP s commands were designed for obtaining upcast data In particular the 52 MP Downcast Data automatically stops autonomous sampling when the measured pressure is less Only than PCUTOFF i e PCUTOFF defines the top of the upcast If you are sampling for a downcast make sure to set PCUTOFF above the top of the cast or the 52 MP wi
40. easonable values may be caused by incorrect calibration coefficients in the instrument s EEPROM Verify the calibration coefficients in EEPROM match the instrument Calibration Certificates using the DC command Problem 3 Salinity Lower than Expected Cause Solution 1 A fouled conductivity cell will report lower than correct salinity Large errors in salinity indicate that the cell is extremely dirty has something large lodged in it or is broken Proceed as follows 1 Clean the conductivity cell as described in Application Note 2D Instructions for Care and Cleaning of Conductivity Cells 2 Remove larger droplets of water by blowing through the conductivity cell Do not use compressed air which typically contains oil vapor 3 Running the 52 MP in air use the TCR command to look at the raw conductivity frequency It should be within 1 Hz of the zero conductivity value printed on the conductivity cell Calibration Sheet If it is significantly different the cell is probably damaged 50 Glossar Glossary SBE 52 MP High accuracy conductivity temperature pressure and optional dissolved oxygen sensor Fouling Biological growth in the conductivity cell during deployment PCB Printed Circuit Board Scan One data sample containing temperature conductivity pressure and optional oxygen SEASOFT Win32 Sea Bird s complete Win 95 98 NT 2000 XP software package which includes software for communicati
41. et sample number to 0 and bin number to 0 when memory fills 52 MP continues autonomous sampling and overwrites earlier data in memory x N Do not reset sample number to 0 and bin number to 0 when memory fills 52 MP automatically stops autonomous sampling when memory fills Do not use unless all previous data has been uploaded INITPROFILE sets sample number for first sample to 0 and bin number for first bin to 0 This resets 52 MP to start saving data to beginning of memory overwriting previous data in memory and making entire memory available for recording Use of INITPROFILE is not required if you will use STARTPROFILE or STARTPROFILEN to start autonomous sampling these commands automatically reset sample number and bin number to 0 before beginning sampling x oxygen sensor frequency multiplier 0 lt OXMULTIPLIER lt 4 0 Typical value approximately 0 25 Multiplies measured frequency by a factor to convert to sensor output See configuration sheet for appropriate value for your instrument Quit session and place 52 MP in quiescent sleep state Power to digital and analog electronics is turned off Memory retention is not affected Section 4 Deploying and Operating SBE 52 MP Real Time Output Commands Real time output can be one of the following e Pressure OUTPUTPRESSURE Y e Sample number OUTPUTSN Y e Sample number and pressure OUTPUTSN Y and OUTPUTPRESSURE Y output is sample number pressure
42. g depends on the temperature gradient and is much worse when coupled surface motion causes the instrument to stop or even reverse its vertical movement When very heavy seas cause severe buoy motion and result in periodic reversals of the instrument vertical movement the data set can be greatly improved by removing scans taken when the pressure change dP dt reverses Note that corrections to the data can only be accomplished if you have uploaded the full data set bin averaged data cannot be corrected 40 Section 4 Deploying and Operating SBE 52 MP Deployment Prior to deployment program the 52 MP for the intended application see Command Descriptions When you are ready to deploy the 52 MP CAUTION Do not use WD 40 or other 1 Install the data I O cable on the 52 MP A Lightly lubricate the inside of the cable connector with silicone grease DC 4 or equivalent B Standard Connector Install the cable connector aligning the raised bump on the side of the cable connector with the large pin pin 1 ground on the 52 MP Remove any trapped air by burping or gently squeezing the connector near the top and moving your fingers toward peeing the 52 MP OR sieeve Cable MCBH Connector Install the cable connector aligning the pins C Place the locking sleeve over the cable connector and tighten it finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers petroleum based lubricants
43. he Tygon tubing off of the anti foulant device cap 2 Unscrew the cap with a socket wrench 3 Remove the old Anti Foulant Device If the old device is difficult to remove use needle nose pliers and carefully break up material 4 Place the new Anti Foulant Device in the cup 5 Rethread the cap onto the cup Do not over tighten 6 Slip the Tygon tubing back onto the cap Secure with a new cable tie Anti foulant device cup holds Anti Foulant Device _ pee ni We ae i Ne MITT i Cut cable tie and slip Unscrew anti foulant Tygon tubing off of anti device cap from anti foulant device cap foulant device cup 47 Sensor Calibration Note After recalibration Sea Bird enters the new conductivity temperature pressure and optional oxygen calibration coefficients in the 52 MP s EEPROM and ships the instrument back to the user with Calibration Certificates showing the new coefficients Section 5 Routine Maintenance and Calibration Sea Bird sensors are calibrated by subjecting them to known physical conditions and measuring the sensor responses Coefficients are then computed which may be used with appropriate algorithms to obtain engineering units The conductivity temperature pressure and optional oxygen sensors on the SBE 52 MP are supplied fully calibrated with coefficients stored in EEPROM in the 52 MP and printed on their respective Calibration Certificates We recommend that the 52 MP be
44. ialization file SeaT erm ini was not found in the Windows directory Please enter the following setup information IMPORTANT To complete setup review the configuration setting for your instrument by selecting your instrument type from the Configure menu list Instrument Type SJS v COM Port Select the instrument type SBE 49 and the computer COM port for communication with the 52 MP Click OK The main screen looks like this dg SeaTerm Yersion 1 32 SeaTerm B gt File Configure Communications Utilities Data View Help Connect Toolbar Command Data Echo Area Capture Status bar to file status grayed out if not not applicable pp capturing to 52 MP va comi 950081 single cast Captuing Instrument Baud rate data bits EPROM version stop bits and parity e Menus Contains tasks and frequently executed instrument commands e Toolbar Contains buttons for frequently executed tasks and instrument commands All tasks and commands accessed through the Toolbar are also available in the Menus To display or hide the Toolbar select View Toolbar in the View menu Grayed out Toolbar buttons are not applicable e Command Data Echo Area Displays the 52 MP s response to a command Additionally commands can be manually typed in this area from the available commands for the 52 MP Note that the 52 MP must be awake for it to respond to a command
45. ibration 48 Circuitry 52 Cleaning 44 Command summary 54 Commands bin averaging 23 calibration coefficients 32 data upload 29 descriptions 19 fast pressure sampling 28 polled 30 pump 31 real time output 22 sampling 27 setup 21 status 20 testing 31 Communication defaults 14 Conductivity sensor maintenance 44 Connector 9 43 Corrosion precautions 43 D Data output format 34 Deployment installation 41 optimizing data quality 37 Description 6 Dimensions 9 E Electronics disassembly reassembly 53 End cap 9 43 F Format data output 34 Functional description 52 G Glossary 51 Index 62 M Maintenance 43 Modes See Sampling modes O Oxygen sensor maintenance 44 P Parts replacement 61 Pressure sensor maintenance 44 Q Quick start 4 R Recovery physical handling 42 Replacement parts 61 S Sampling autonomous 17 polled 18 Sampling modes 16 SEASOFT DOS 7 SEASOFT Win3 2 7 11 SEATERM 7 11 12 main screen 12 toolbar buttons 13 Sensors 8 Software 7 installation 11 Specifications 8 Storage 44 System description 6 T Test power and communications 11 setup 11 Triton 51 U Unpacking SBE 52 MP 5
46. iday 0800 to 1700 Pacific Standard Time 1600 to 0100 Universal Time Except from April to October when we are on summer time 1500 to 0000 Universal Time Quick Start Follow these steps to get a Quick Start using the SBE 52 MP The manual provides step by step details for performing each task 1 Test power and communications Section 3 Power and Communications Test Establish setup and sampling parameters 2 Deploy the 52 MP Section 4 Deploying and Operating SBE 52 MP A Install I O cable connector and locking sleeve Connect other end of cable to moored profiler controller and power supply Verify hardware and external fittings are secure Remove caps from end of T C Duct and pump exhaust Deploy 52 MP Apply power e With 52 MP in water to avoid running the pump dry send any character to wake up 52 MP Then send STARTPROFILE to start sampling eee Unpacking SBE 52 MP Section 1 Introduction Shown below is a typical SBE 52 MP shipment SBE 52 MP I O cable Jackscrew kit Conductivity cell Conductivity cell filling cleaning solution and storage kit Triton X SBE 52 MP SBE 52 MP Software and Electronic Copies of User Manual Software Manuals and User Manual Section 2 Description of SBE 52 MP Section 2 Description of SBE 52 MP This section describes the functions and features of the SBE 52 MP Moored Profiler CTD and Optional DO Sensor including specifications d
47. imensions connectors and communications System Description Standard SBE 52 MP no Dissolved Oxygen Sensor Shown with optional SBE 43F Dissolved Oxygen Sensor The SBE 52 MP is a conductivity temperature depth pressure sensor CTD designed for moored profiling application in which the instrument makes vertical profile measurements from a device that travels vertically beneath a buoy or from a buoyant sub surface sensor package that is winched up and down from a bottom mounted platform The 52 MP incorporates pump controlled TC ducted flow to minimize salinity spiking On typically slow moving packages e g 20 50 cm sec its sampling rate of once per second provides good spatial resolution of oceanographic structures and gradients The 52 MP can optionally be configured with a Dissolved Oxygen sensor module SBE 43F as shown in the photo The SBE 43F is a frequency output version of our SBE 43 Dissolved Oxygen Sensor and carries the same performance specifications The 52 MP is intended for use in marine or fresh water environments at depths up to 7000 meters 22 900 feet The 52 MP uses the same accurate and stable thermistor conductivity cell and pressure sensor that are used in the MicroCAT and ARGO Float products It is easy to use compact and ruggedly made of titanium and other low maintenance plastic materials The operating commands sent via 0 3 3 volt logic levels or RS 232 interface are easy to e
48. in Hex If s f omitted all data uploaded First sample number is 0 DDBs f Upload all data unaveraged from sample s to f in binary If s f omitted all data uploaded First sample number is 0 DAN NBIN Display number of averaged bins in memory up to 4 characters followed by carriage return and line feed Display number of averaged bins in memory label plus up to 4 characters followed by carriage return and line feed DAs f Upload bin averaged data from bin s to f in ASCII engineering units If s f omitted all data uploaded First bin number is 0 DAHs f Upload bin averaged data from bin s to f in Hex If s f omitted all data uploaded First bin number is 0 DABs f Upload bin averaged data from bin s to f in binary If s f omitted all data uploaded First bin number is 0 Polled Sampling PTS Run pump take 1 sample of all parameters transmit data in ASCII engineering units turn pump off Length of time that pump runs is dependent on T and P TS Take 1 sample of all parameters transmit data in ASCII engineering units Does not run pump before sampling If desired send a pump command before and after sending TS to turn pump on and off TSR Take 1 sample of all parameters transmit raw data in ASCII Does not run pump before sampling If desired send a pump command before and after sending TSR to turn pump on and off FP Take 1 sample of pre
49. in a profile Apply power send any character to wake up the 52 MP and then send 41 Section 4 Deploying and Operating SBE 52 MP Recovery WARNING If the 52 MP stops working while underwater is unresponsive to commands or shows other signs of flooding or damage carefully secure it away from people until you have determined that abnormal internal pressure does not exist or has been relieved Pressure housings may flood under pressure due to dirty or damaged o rings or other failed seals When a sealed pressure housing floods at great depths and is subsequently raised to the surface water may be trapped at the pressure at which it entered the housing presenting a danger if the housing is opened before relieving the internal pressure Instances of such flooding are rare However a housing that floods at 5000 meters depth holds an internal pressure of more than 7000 psia and has the potential to eject the end cap with lethal force A housing that floods at 50 meters holds an internal pressure of more then 85 psia this force could still cause injury If you suspect the 52 MP is flooded point it in a safe direction away from people and loosen the 4 screws on the sensor end cap about 1 turn If there is internal pressure the end cap will follow the screws out and the screws will not become easier to turn In this event loosen the bulkhead connector on the other end cap very slowly at least 1 turn This ope
50. ine feed Autonomous Sampling with OUTPUTPRESSUREZY real time pressure in engineering units or TFP command Shown is the number of digits and the placement of the decimal point Leading zeros are suppressed except for one zero to the left of the decimal point Example example scan ppppp pp 1665 66 e Pressure decibars ppppp pp 1665 66 Pressure decibars ppppp pp OUTPUTSN Y real time sample number Sample number nnnnn Example sample number nnnnn 16689 35 Section 4 Deploying and Operating SBE 52 MP OUTPUTSN Y and OUTPUTPRESSURE Y real time sample number and pressure in engineering units Data is output in the order listed There is a comma between sample number and pressure Shown with each parameter are the number of digits and the placement of the decimal point Leading zeros are suppressed except for one zero to the left of the decimal point 1 Sample number nnnnn 2 Pressure decibars ppppp pp example scan nnnnn ppppp pp 16689 1665 66 e Sample number nnnnn 16689 e Pressure decibars ppppp pp 1665 66 OUTPUTCTDOZY real time C T and P in engineering units O in Hz Data is output in the order listed There is a comma between each parameter Shown with each parameter are the number of digits and the placement of the decimal point Leading zeros are suppressed except for one zero to the left of the decimal point 1 Conductivity mmho cm ccc cccc
51. ised details below Removing T C Duct Top replaces Steps 1 4 A Remove the four small Phillips head screws with o rings securing the T C Duct top to the T C Duct base B Carefully pull the T C Duct top straight out do not apply any sideways motion or you may damage the temperature sting Replacing T C Duct Top replaces Steps 7 9 C Carefully replace the T C Duct top on the base reinstalling the four small Phillips head screws and o rings O rings 4 Temperature sting Phillips head screws 4 Temperature T C Duct Base remains attached shown partially removed sting and sealed to top of conductivity cell do not remove 45 Section 5 Routine Maintenance and Calibration Replacing Optional Anti Foulant Devices SBE 49 As an option the SBE 49 is supplied with anti foulant device fittings and Anti er Foulant Devices The Anti Foulant Devices are installed Anti Foulant Device e in the T C Duct assembly e inthe anti foulant device cup and cap part of the external pump exhaust tubing Wearing rubber or latex gloves follow this procedure to replace each Anti WARNING Foulant Device two AF24173 Anti Foulant Devices y ae contain bis tributyltin oxide Handle Anti Foulant Device in T C Duct Assembly the devices only with rubber or latex gloves Wear eye protection Wash 1 Remove the large screw securing the T C Duct to the mast with soap and water after handling 2 Gently p
52. ition bin between top and middle section and between middle and bottom section Transition bins are last top bin center TOP_BIN_INTERVAL 2 to last top bin center MIDDLE_BIN_INTERVAL 2 and last middle bin center MIDDLE_BIN_INTERVAL 2 to last middle bin center BOTTOM_BIN_INTERVAL 2 x N Do not calculate transition bins Example TOP_BIN_INTERVAL TOP_BIN_SIZE 10 db MIDDLE_BIN_INTERVAL MIDDLE_BIN_SIZE 100 db TOP_BIN_MAX 100 db Looking at what happens between the top and middle section if there is no transition bin Section Bin Center Bin Range Top 90 85 95 100 95 105 200 150 250 Middle 300 250 350 You can see that there is a gap in the bins from 105 to 150 db By including the transition bin you can cover the gap Start of transition bin last top bin center TOP_BIN_INTERVAL 2 100 10 2 105 db End of transition bin last top bin center MIDDLE_BIN_INTERVAL 2 100 100 2 150 db 26 Section 4 Deploying and Operating SBE 52 MP Autonomous Sampling Commands Autonomous sampling directs the 52 MP to turn on the pump and sample conductivity temperature pressure and optional oxygen continuously CAUTION at 1 Hz The pump runs at fast speed for 2 5 seconds and then runs Sending STARTPROFILE continuously at slow speed Fast speed removes any debris from the STARTPROFILEN system and rapidly brings in new water once the system is cleared
53. lication but you should be aware of the tradeoffs of data quality vs mission goals SBE 52 MP Orientation Recommended orientations were developed with the following goals e Minimizing thermal contamination of the water that flows past the sensors As the moored profiler passed through the water it slightly warms the water If the 52 MP sensors pass through the water after the rest of the moored profiler it will measure the temperature of this warmed water rather than the in situ temperature Therefore mount and orient the 52 MP so that the sensor intake is at the leading edge of the moored profiler if you are performing both upcasts and downcasts this is not possible to achieve Alternatively mount and orient the 52 MP so that the sensor intake is at some horizontal distance from the main body of the moored profiler e Maintaining constant flow through plumbing while sampling by equalizing Bernoulli pressures Differential Bernoulli pressures on the intake and exhaust can cause acceleration of water in the plumbing Water acceleration in the plumbing while sampling overrides the constant flow provided by the pump resulting in data that can be difficult to align because of changing flow rates Therefore mount and orient the 52 MP so that the intake and exhaust are on the same horizontal plane equalizing Bernoulli pressures e Maximizing effectiveness of anti foulant devices by equalizing Bernoulli pressures The 52 MP s pl
54. like this data using DA engineering units eed Display looks like this DAH Hex or DAB Binary will Number of bins 3500 provide newer data followed by older data DAs f Upload bin averaged data from bin s to bin Example Assume there are 3 500 f in ASCII engineering units If s and f bins in the bin averaged portion of the are omitted all data is uploaded First bin memory when the main memory fills number is 0 and that the first 1 000 bins are overwritten Bins ie 000 are bin DAHs f Upload bin averaged data from bin s to bin averaged Cata that was measured f in Hex If s and f are omitted all data is after the data in Bins 1 001 3 500 d a oat uploaded First bin number is 0 DABs f Upload bin averaged data from bin s to bin f in binary If s and f are omitted all data is uploaded First bin number is 0 29 Section 4 Deploying and Operating SBE 52 MP CAUTION Sending PTS causes the pump to turn on Do not run the pump dry The pump is water lubricated running it without water except for very short periods will damage it If testing your system in dry conditions fill the inside of the pump head with water via the pump exhaust tubing This will provide enough lubrication to prevent pump damage during testing Note TS and TSR do not automatically turn the pump on To get conductivity and optional oxygen from a fresh sample send PUMPON some time before sending TS or TSR and then send PU
55. lity e Deployment e Recovery Sampling Modes The SBE 52 MP has two sampling modes for obtaining data e Autonomous sampling typical use e Polled sampling Descriptions and examples of the sampling modes follow Note that the 52 MP s response to each command is not shown in the examples Review the operation of the sampling modes and the commands described in Command Descriptions before setting up your system 16 Section 4 Deploying and Operating SBE 52 MP Autonomous Sampling Note The SBE 52 MP runs continuously sampling data at 1 scan per second 1 Hz The 52 MP does not echo characters received from the computer Therefore the commands you send and storing data to memory The 52 MP can also transmit in real time e pressure decibars for example DS will not appear in e sample number data the SEATERM display Commands e pressure decibars and sample number data are shown in the example below for e conductivity mmho cm temperature C pressure decibars and illustration only optional oxygen Hz or conductivity Hz temperature A D counts pressure A D counts pressure temperature A D counts and optional oxygen Hz Example 1 Autonomous Sampling Setup user input in bold 52 MP with RS 232 interface or using logic level to RS 232 converter with 52 MP that has logic level interface In the lab using SEATERM set up 52 MP to sample on the upcast from 1000 m to 10 m to stop sam
56. ll turn off immediately after sampling is started Example You plan to sample on downcast starting each profile at 5 decibars Set PCUTOFF 3 decibars to ensure proper operation Upcast Data Intake Exhaust Only Positioning Relative to Other Instruments Position the 52 MP so that other instruments and hardware do not thermally contaminate the water that flows past the sensors 39 Section 4 Deploying and Operating SBE 52 MP Intake Exhaust Note Sea Bird data processing software is not compatible with data from the 52 MP You must provide your own data processing software Deployment Recovery Technique and Pump Operation The 52 MP s conductivity cell Tygon tubing DO sensor and exhaust Tygon tubing provides a U shape to the system plumbing The U shape and the 52 MP s good seals combined with optimal pump operation can prevent surface oils and other contaminants from getting into the plumbing and conductivity cell These oils and contaminants are the primary cause of calibration drift in conductivity sensors and dissolved oxygen sensors Proper deployment technique and pump operation to prevent intrusion of surface oils and contaminants follows 1 On Deployment When not in use store the 52 MP dry see Section 5 Routine Maintenance and Calibration Fill the plumbing system conductivity cell optional dissolved oxygen sensor and exhaust plumbing with clean water just before deployment Depl
57. llow profiles air in the system may take up to several days to dissipate if the 52 MP is not oriented properly resulting in several days of poor data at the beginning of the deployment Based on these goals and whether you are interested in upcast or downcast data or both Sea Bird recommends the following orientations 37 Section 4 Deploying and Operating SBE 52 MP Horizontal Orientation Upcast and or Downcast Data If you plan to use the 52 MP to obtain both upcast and downcast data mount the 52 MP with a horizontal orientation Orient the sensors as described below e Deep profiles Orient the 52 MP with the temperature sting at the same elevation as the plumbing sensor exhaust With the intake and exhaust on the same plane Bernoulli pressures are equalized minimizing acceleration of water in the plumbing While this orientation does not provide an upward path to the system plumbing it provides a neutral path The top 0 to up to 30 meters of data of the first downcast only is suspect because the pump may not operate properly until the air bubbles collapse due to water pressure e Shallow profiles If the 52 MP is oriented so that air cannot be easily expelled the top 0 to 30 meters of data is suspect because the pump may not operate properly until the air bubbles collapse due to water pressure If the moored profiler is operating only at shallow depths it may take days for the air bubbles to completely dissipate on their o
58. mmunications Test Display 52 MP status information by clicking Status on the Toolbar or typing DS and pressing the Enter key The display looks like this SBE 52 MP CTD 2 1 SERIAL NO 0004 output CTDO when profiling stop profile when pressure is less than 5 0 decibars automatic bin averaging when p lt 5 0 disabled number of samples 10050 number of bins 39 top bin interval 10 top bin size 10 top bin max 100 middle bin interval 50 middle bin size 50 middle bin max 1000 bottom bin interval 100 bottom bin size 100 do not include two transition bins oxygen frequency multiplier 1 00 Command the 52 MP to take a sample by typing PTS or TS and pressing the Enter key The display looks like this 35 4789 6 9892 182 25 6 768 where 35 4789 conductivity mmho cm 6 9892 temperature degrees Celsius 182 25 pressure decibars 6 768 dissolved oxygen ml l These numbers should be reasonable for the present environment of your instrument for example in air in fresh water or in seawater The 52 MP is ready for programming and deployment 15 Section 4 Deploying and Operating SBE 52 MP Section 4 Deploying and Operating SBE 52 MP This section includes discussions of Note l i e Sampling modes including pump operation and example commands Help files contain detailed information on use of SEATERM bis e Command descriptions e Data output formats e Optimizing data qua
59. n 4 Deploying and Operating SBE 52 MP Data Upload Commands See Data Output Formats for details All Data unaveraged DDN Display number of data samples unaveraged in memory up to 5 characters followed by a carriage return and line feed Note DDs f Upload all data unaveraged from sample ote If OVERWRITEMENGEY and you s to sample f in ASCII engineering units have filled and started to overwrite the If s and f are omitted all data is uploaded memory uploading all data using DD First sample number is 0 engineering units DDH Hex or DDB Binary will provide newer data DDHs f Upload all data unaveraged from sample followed by older data s to sample f in Hex If s and f are Example Overwrote first 10 000 omitted all data is uploaded First sample samples of the 28 000 sample number is 0 memory Samples 1 10 000 are data that was measured after samples 10 001 28 000 DDBs f Upload all data unaveraged from sample s to sample f in binary If s and f are omitted all data is uploaded First sample number is 0 Bin Averaged Data DAN Display number of averaged bins in memory up to 4 characters followed by a carriage return and line feed Note NBIN Display number of averaged bins in If OVERWRITEMEM Y and you memory label plus up to 4 characters nave fled ana started t0 overwrite the followed by a carriage return and line memory uploading all bin averaged feed Display looks
60. ns an o ring seal under the connector Look for signs of internal pressure hissing or water leak If internal pressure is detected let it bleed off slowly past the connector o ring Then you can safely remove the sensor end cap See Deployment Recovery Technique and Pump Operation in Optimizing Data Quality above for Sea Bird recommendations on orienting the SBE 52 MP during recovery to minimize contamination of the conductivity cell and oxygen sensor membrane with surface oils Rinse the 52 MP with fresh water See Section 5 Routine Maintenance and Calibration for conductivity cell and dissolved oxygen sensor rinsing cleaning and storage 42 Section 5 Section 5 Routine Maintenance and Calibration Routine Maintenance and Calibration This section reviews corrosion precautions connector mating and maintenance conductivity cell storage and cleaning pressure sensor maintenance oxygen sensor maintenance replacing optional AF24173 Anti Foulant Devices and sensor calibration The accuracy of the SBE 52 MP is sustained by the care and calibration of the sensors and by establishing proper handling practices Corrosion Precautions Rinse the SBE 52 MP with fresh water after use and prior to storage All exposed materials are titanium or plastic No corrosion precautions are required but direct electrical connection of the titanium to dissimilar metal hardware should be avoided Connector Mating and Mainten
61. om last sample before receiving previous STOPPROFILE Example You plan to deploy the 52 MP on a deep mooring and have it sample on upcast from 7000 db to 5 db However to conserve power you don t want to sample continuously through deep water where measured parameters are likely to change very little You program the controller to send STARTPROFILE at 7000 db then STOPPROFILE at 6980 db RESUMEPROFILE at 6900 db then STOPPROFILE and DTDP at 6880 db RESUMEPROFILE at 6800 db then STOPPROFILE and DTDP at 6780 db etc Each time you send STOPPROFILE the 52 MP calculates dt dp which is then transmitted to the controller when you send DTDP You program the controller to check for when dt dp reaches a threshold value i e indicating that the temperature is changing significantly and to sample continuously after that point is reached i e the controller does not send STOPPROFILE beyond that point You have programmed the 52 MP with PCUTOFF 5 and AUTOBINAVG Y so autonomous sampling stops automatically at 5 db and bins for the entire profile are calculated when the 52 MP reaches 5 db Fast Pressure Sampling Command TFP Measure pressure at approximately 4 Hz 0 25 seconds sample transmit ASCII converted data pppp ppp decibars one measurement per line followed by a carriage return and line feed Data is not stored in SRAM memory Press the Esc key or Stop on the Toolbar to stop fast pressure sampling 28 Sectio
62. on real time data acquisition and data analysis and display SEASOFT Win32 includes SEATERM SeatermAF SEASAVE SBE Data Processing and Plot39 Note that the real time data acquisition and data analysis and display software is not compatible with the SBE 52 MP SEATERM Sea Bird s Win 95 98 NT 2000 XP terminal program used to communicate with the SBE 52 MP Note that SEATERM can be used to set up the 52 MP only if e You are using a logic level to RS 232 converter with a 52 MP with logic level interface or e You are using a 52 MP with an RS 232 interface Triton X 100 Reagent grade non ionic surfactant detergent used for cleaning the conductivity cell Triton can be ordered from Sea Bird but should also be available locally from chemical supply or laboratory products companies Triton is manufactured by J T Baker Mallinkrodt Baker Inc see http www jtbaker com distrib distrib asp seg lab for local distributors 51 Appendix Functional Description and Circuitr Appendix I Functional Description and Circuitry Sensors The SBE 52 MP embodies the same temperature and conductivity sensor elements 3 electrode 2 terminal borosilicate glass cell and pressure protected thermistor previously employed in Sea Bird s MicroCAT and ARGO Float products The pressure sensor is a Druck strain gauge sensor The optional oxygen sensor is the SBE 43F a frequency output version of the SBE 43 Dissolved Oxygen Sensor
63. ormal for some oil to slowly leak out of the plug It is not necessary to refill the oil Periodically approximately once a year inspect the pressure port to remove any particles debris etc 1 Unscrew the pressure port plug from the pressure port The fitting may contain silicon oil from the factory so there may be some spillage 2 Rinse the pressure port with warm de ionized water to remove any particles debris etc 3 Replace the pressure port plug Refer to Application Note 64 Dissolved Oxygen Sensor for rinsing cleaning and storage procedures and materials for the optional oxygen sensor o gt lt oer plenum 44 Section 5 Routine Maintenance and Calibration Replacing Optional Anti Foulant Devices Mechanical Design Change The standard T C Duct also serves as the anti foulant device intake fitting Exhaust Anti foulant device exhaust cup amp cap Exhaust SBE 43 without optional DO Sensor Anti foulant device exhaust cup amp cap SBE 43 with optional DO Sensor The following two pages developed for an SBE 49 FastCAT provide details on replacing the Anti Foulant Devices Note the following changes for the SBE 52 MP e The photo in Anti Foulant Device in Pump Exhaust Tubing is not applicable see the photos above for the location of the anti foulant device exhaust cup and cap on the 52 MP e Steps 1 4 and 7 9 in Anti Foulant Device in T C Duct Assembly are not applicable see the rev
64. oxylate Reagent grade non ionic cleaning solution SOFT Trit n X109 for conductivity cell supplied in l 100 strength dilute as directed 801347 AF24173 bis tributyltin oxide device inserted 1 set of 2 801542 Anti Foulant Device into anti foulant device cup SEER 231513 Anti foulant device cup Holds AF24173 Anti Foulant 1 on exhaust plumbing Device 231514 Anti foulant device cap Secures AF24173 Anti Foulant 1 on exhaust plumbing Device in cup T C Duct secures AF24173 2320937 et Duct top Anti Foulant Device in base l T C Duct holds AF24173 232056 T C Duct base Anti Foulant Device 1 Exhaust fitting mounts to 232395 Pump exhaust sensor guard 1 30132 Screw 4 40 x 3 4 flat Secures pump exhaust fitting to 1 Phillips head stainless Sensor guard 30239 Waster 4 nylon WN 4 For 30132 screw placed pump 2 gt exhaust fitting and sensor guard 30536 mee OD Exhaust plumbing Assorted parts including e 231513 In line Anti Foulant cup for AF24173 Anti Foulant Device e 231514 In line Anti Foulant cap seals Anti foulant device in AF24173 Anti Foulant Device in cup 50312 li bl e 30072 O ring 2 017 N674 70 seal S Ine CAP CUpASSEMYY between cap and cup e 30536 Tubing 3 8 ID x 5 8 OD plumbing e 30389 Cable Tie 4 Richco secures plumbing to cap cup and CTD barbs For standard bulkhead connector 61 Index A About Sea Bird 4 Anti Foulant Devices 57 replacing 45 46 C Cal
65. oy the 52 MP without removing the water holding the 52 MP in a vertical orientation sensors up As the 52 MP breaks the surface oils and other surface contaminants will float on the water at the intake and exhaust preventing contaminants from getting into the plumbing and conductivity cell Once the 52 MP is below the contaminated water surface layer orient the 52 MP as desired for mounting on the moored profiler When the controller sends the command to turn the pump on the 52 MP will expel any remaining water from the system and draw in seawater 2 On Recovery Turn off the pump before the 52 MP reaches the surface if sampling autonomously stop sampling to turn off the pump Hold the 52 MP ina vertical orientation sensors up seawater will be held in the U shaped plumbing As the 52 MP breaks the surface oils and other surface contaminants will float on the seawater at the intake and exhaust preventing contaminants from getting into the plumbing and conductivity cell Turn over the 52 MP when it is on deck emptying the seawater from the conductivity cell and exhaust plumbing so the oil floating on the intake and exhaust surfaces does not get into the system Processing Data Spiking is sometimes seen in the derived values for salinity density or sound velocity Spiking results largely from a response time mismatch of the conductivity and temperature sensors especially when the profiling rate is non uniform The amount of spikin
66. pling If desired send a pump command before and after sending TS to turn pump on and off Take 1 sample of all parameters and transmit ASCII raw data conductivity cccc ccce Hz temperature tttttt t A D counts pressure pppppp p A D counts pressure temperature vvvvvwv v A D counts optional oxygen o0000 0 Hz This command does not run pump before sampling If desired send a pump command before and after sending TSR to turn pump on and off Take 1 sample of pressure and transmit data in ASCII engineering units ppppp pp decibars Section 4 Deploying and Operating SBE 52 MP CAUTION Do not run the pump dry The pump is water lubricated running it without water except for very short periods will damage it If testing your system in dry conditions fill the inside of the pump head with water via the pump exhaust tubing This will provide enough lubrication to prevent pump damage during testing Pump Commands The pump runs automatically for autonomous sampling Use pump commands e Before sending TS or TSR polled sampling commands or TC TCR TO or TOR testing commands to obtain pumped conductivity and or optional oxygen data or e To test pump PUMPON Turn on pump runs at fast speed for 2 5 seconds then runs at slow speed This is scheme automatically used by 52 MP for autonomous sampling Fast speed removes any debris from system and rapidly brings in new water sample once system is cleare
67. pling automatically at 10 m and to calculate bins automatically when it stops sampling For bin averaging set up a top section from 10 to 100 m with 10 m bins a middle section from 100 to 300 m with 20 m bins and a bottom section from 300 to 1000 m with 50 m bins and also calculate transition bins Set up 52 MP to output real time pressure Verify setup with status command Remove power Apply power then send any character to wake up S gt PCUTOFF 10 S gt AUTOBINAVG Y S gt TOP_BIN_INTERVAL 10 S gt TOP BIN SIZE 10 S gt TOP_ BIN MAX 100 S gt MIDDLE BIN INTERVAL 20 S gt MIDDLE BIN SIZE 20 S gt MIDDLE BIN MAX 300 S gt BOTTOM BIN INTERVAL 50 S gt BOTTOM BIN SIZE 50 S gt INCLUDETRANSITIONBIN Y S gt OUTPUTPRESSURE Y S gt DS to verify setup Remove power Program controller to monitor real time pressure output to determine when autonomous sampling has stopped and to send data upload commands DD for all data and DA for bin averaged data after some delay to allow time for the 52 MP to calculate the bin averages When ready to begin sampling Put 52 MP in water send down to 1000 m apply power then send any character to wake up 52 MP S gt STARTPROFILE Autonomous sampling stops automatically at 10 m PCUTOFF gt and 52 MP calculates bins Controller sends DD unaveraged data and DA bin averaged data to upload data 17 Section 4 Deploying and Operating SBE 52 MP Polled Sampling Note On command the SBE 52
68. pling is stopped because pressure lt PCUTOFF x N Do not automatically average stored data into bins BINAVERAGE Average stored data into bins now Send STOPPROFILE to stop autonomous sampling before sending this command 23 Section 4 Deploying and Operating SBE 52 MP Bin Averaging Commands continued Setting Bin Averaging Parameters The 52 MP allows you to define a top middle and bottom section of the profile each section can have different bin sizes and bin intervals In addition it allows you to define a transition bin between the top and middle section and between the middle and bottom section Surface 0 db eee TOP_BIN_INTERVAL TOP_BIN_SIZE Bin Center Top a ee TOP_BIN_INTERVAL Section TOP_BIN_SIZE Bin Center TOP_BIN_INTERVAL TOP_BIN_SIZEM Bin Center TOP_BIN_MAX TOP_BIN_INTERVAL 2 MIDD Sale RUNES SAS 2 fess ei so SEER one WS Transition Bin Center MIDDLE_BIN_INTERVAL MIDDLE_BIN size Bin Genter Middle Section Bee Gee MIDDLE_BIN_INTERVAL MIDDLE_BIN_sIzE Bin Center met bse MIDDLE_BIN_INTERVAL MIDDLE_BIN_SIZE Ein Cenir MIDDLE BIN MAX MIDDLE_BIN_INTERVAL 2 BOTTOM_BIN_INTERVAL 2 SE Transition Bin Center BOTTOM_BIN_INTERVAL BOTTOM_BIN size Bin Center Bottom Section eos bas BOTTOM_BIN_INTERVAL BOTTOM_BIN size Bin Center 24 Section 4 Deploying and Operating SBE 52 MP Bin Averaging Commands continued TOP_BIN_INTERVAL x TOP_BIN_SIZE x TOP_BIN_MA
69. r aging and ambient temperature induced drift Pressure sensors show most of their error as a linear offset from zero A technique is provided below for making small corrections to the pressure sensor calibration using the offset POFFSET calibration coefficient term by comparing 52 MP pressure output to readings from a barometer Allow the 52 MP to equilibrate with power on in a reasonably constant temperature environment for at least 5 hours before starting Pressure sensors exhibit a transient change in their output in response to changes in their environmental temperature Sea Bird instruments are constructed to minimize this by thermally decoupling the sensor from the body of the instrument However there is still some residual effect allowing the 52 MP to equilibrate before starting will provide the most accurate calibration correction 48 Section 5 Routine Maintenance and Calibration on P s pressure sensor is an 1 Place the 52 MP in the orientation it will have when deployed absolute sensor so its raw output includes the effect of atmospheric 2 InSEATERM pressure 14 7 psi As shown on the A Set the pressure offset to 0 0 POFFSET 0 Calibration Sheet Sea Bird s B Send TP to measure the 52 MP pressure 100 times and transmit calibration and resulting calibration coefficients is in terms of psia However when outputting pressure in engineering units the 52 MP outputs converted data in engineering unit
70. returned to Sea Bird for calibration Conductivity Sensor Calibration The conductivity sensor incorporates a fixed precision resistor in parallel with the cell When the cell is dry and in air the sensor s electrical circuitry outputs a frequency representative of the fixed resistor This frequency is recorded on the Calibration Certificate and should remain stable within 1 Hz over time The primary mechanism for calibration drift in conductivity sensors is the fouling of the cell by chemical or biological deposits Fouling changes the cell geometry resulting in a shift in cell constant Accordingly the most important determinant of long term sensor accuracy is the cleanliness of the cell We recommend that the conductivity sensor be calibrated before and after deployment but particularly when the cell has been exposed to contamination by oil slicks or biological material Temperature Sensor Calibration The primary source of temperature sensor calibration drift is the aging of the thermistor element Sensor drift will usually be a few thousandths of a degree during the first year and less in subsequent intervals Sensor drift is not substantially dependent upon the environmental conditions of use and unlike platinum or copper elements the thermistor is insensitive to shock Pressure Sensor Calibration The 52 MP s strain gauge pressure sensor is capable of meeting the 52 MP s error specification with some allowance fo
71. rinse slowly and gently with water for 15 20 minutes Remove contact lenses if present after the first 5 minutes then continue rinsing eye Call a poison control center or doctor for treatment advice HOT LINE NUMBER Have the product container or label with you when calling a poison control center or doctor or going for treatment For further information call National Pesticide Telecommunications Network NPTN at 1 800 858 7378 Net Contents Two anti foulant devices Sea Bird Electronics Inc EPA Registration No 74489 1 1808 136 Place Northeast EPA Establishment No 74489 WA 1 Bellevue WA 98005 58 Appendix IV AF24173 Anti Foulant Device PRECAUTIONARY STATEMENTS HAZARD TO HUMANS AND DOMESTIC ANIMALS DANGER Corrosive Causes irreversible eye damage and skin burns Harmful if swallowed Harmful if absorbed through the skin or inhaled Prolonged or frequently repeated contact may cause allergic reactions in some individuals Wash thoroughly with soap and water after handling PERSONAL PROTECTIVE EQUIPMENT USER SAFETY RECOMMENDATIONS Users should Remove clothing immediately if pesticide gets inside Then wash thoroughly and put on clean clothing Wear protective gloves rubber or latex goggles or other eye protection and clothing to minimize contact Follow manufacturer s instructions for cleaning and maintaining PPE If no such instructions for washables use detergent and hot water Keep and wash PPE sep
72. roller l l 4 Power Input 7 16 VDC 05 20 l Pin Description Ihe sn nit es Sinni 1 Common l Verify power input matches setting of jumper JP1 on Pwr PCB l 2 DO frequency Input always gt 8 V JP1 open Input normally lt 8V and always lt 15 V JP1 shorted l 13 DO power l See instrument configuration sheet for factory setting for your instrument l DO sensor cable not shown for clarity Note The 52 MP s optional oxygen sensor may be rotated 180 if desired for your application However you must rotate the entire oxygen sensor assembly including the plenum To do this 1 Disconnect the Tygon tubing from the pump exhaust on the sensor end cap Disconnect the oxygen sensor cable from the sensor end cap bulkhead connector 2 Remove the screws attaching the sensor guard to the sensor end cap Carefully remove the sensor guard along with the attached oxygen sensor and plumbing from the 52 MP 3 Disconnect the Tygon tubing on both sides of the oxygen plenum 4 Remove the screws attaching the oxygen plenum to the sensor guard Rotate the oxygen sensor 180 reattach to the sensor guard with the screws and reconnect the Tygon tubing on both sides of the plenum 5 Carefully replace the sensor guard along with the attached oxygen sensor and plumbing on the 52 MP Replace the screws attaching the sensor guard to the sensor end cap 6 Reconnect the oxygen sensor cable to the sensor end cap bulkhead connector Reconnec
73. rom the conductivity cell and oxygen sensor plenum For polled sampling pump run time for best dissolved oxygen accuracy is a function of temperature and pressure and is automatically determined by the 52 MP 55 seconds maximum e Reduced fouling When not sampling the U shaped flow path and pump impeller restrict flow maintaining an effective concentration of anti foulant inside the conductivity cell to minimize fouling A standard 52 MP is supplied with Note e Titanium housing for depths to 7000 meters 22 900 feet The 52 MP s pump is not designed e Conductivity temperature and pressure offered in eight full scale ranges to be used to pump water through from 20 to 7000 decibars sensors sensorsother tMan theconductvity e Integrated T C Duct and internal pump for flow controlled conductivity cell and optional integrated dissolved temperature and dissolved oxygen sensor response Anti foulant device fittings and expendable Anti Foulant Devices RS 232 or 0 3 3 volt logic level interface factory configured XSG 4 pin I O bulkhead connector IE 55 bulkhead connector for optional SBE 43F Dissolved Oxygen Sensor 3 8 16 locator mounting hole in the sensor end cap to assist in mounting to a McLane MMP moored profiler oxygen sensor Other sensors on your moored profiler requiring pumped water need a separate pump 52 MP options include e Plastic housing for depths to 600 meters 1960 feet in lieu of titanium housing e
74. s decibars 3 Compare the 52 MP output to the reading from a good barometer at the pressure relative to the ocean surface same elevation as the 52 MP s pressure sensor i e at the surface the output pressure Calculate offset barometer reading 52 MP reading is 0 decibars The 52 MP uses the following equation to convert psia 4 Enter calculated offset positive or negative in the 52 MP s EEPROM to decibars using POFFSET in SEATERM Pressure db pressure psia 14 7 0 689476 Offset Correction Example Absolute pressure measured by a barometer is 1010 50 mbar Pressure displayed from 52 MP is 2 5 db Convert barometer reading to decibars using the relationship mbar 0 01 db Barometer reading 1010 50 mbar 0 01 10 1050 db The 52 MP s internal calculations and our processing software output gage pressure using an assumed value of 14 7 psi for atmospheric pressure Convert 52 MP reading from gage to absolute by adding 14 7 psia to the 52 MP s output 2 5 db 14 7 psi 0 689476 db psia 2 5 10 13 7 635 db Offset 10 1050 7 635 2 47 db Enter offset in 52 MP and in con file For demanding applications or where the sensor s air ambient pressure response has changed significantly calibration using a dead weight generator is recommended This provides more accurate results but requires equipment that may not be readily available The end cap s 7 16 20 straight threa
75. spills with absorbent material Put saturated absorbent material to a labeled container for treatment or disposal PESTICIDE DISPOSAL Pesticide that cannot be used according to label instructions must be disposed of according to Federal or approved State procedures under Subtitle C of the Resource Conservation and Recovery Act CONTAINER DISPOSAL Dispose of in a sanitary landfill or by other approved State and Local procedures Sea Bird Electronics label revised 01 31 05 60 A endix V Replacement Parts Appendix V Replacement Parts Part ee er Quantity Number Part Application Description in 52 MP 4 pin RMG 4FS pigtail 17031 cable with locking sleeve From o2 ME to controllet and 1 2 4 m 8 ft power supply 17046 1 4 pin RMG 4FS dummy For storage when I O cable 1 plug with locking sleeve not used 17043 Looking sleeve Locks I O cable dummy plug 1 in place 4 pin MCIL 4FS wet 171368 pluggable connector From 52 MP to controller and 1 pigtail cable with locking power supply sleeve 2 4 m 8 ft 4 pin MCIL 4FS 171398 1 wet pluggable connector For storage when I O cable 1 dummy plug with not connected locking sleeve 171192 Locking sleeve Locks I O cable dummy plug 1 wet pluggable connector in place 171558 3 pin IE55 to 3 pin IE55 From oxygen sensor to bulkhead 1 cable 0 5 m 1 75 ft connector on 52 MP sensor end cap Octyl Phenol Eth
76. ssure and transmit data in ASCII engineering units db 55 Appendix Ill Command Summary CATEGORY COMMAND DESCRIPTION Turn pump on pump runs at fast speed for rN 2 5 seconds then runs at slow speed Pump PUMPFAST Turn pump on at fast speed PUMPSLOW Turn pump on at slow speed PUMPOFF Turn pump off Testing TC Measure conductivity transmit converted data Takes and TT Measure temperature transmit converted data outputs TP Measure pressure transmit converted data 100 samples TCR Measure conductivity transmit raw data for each test TTR Measure temperature transmit raw data Press Esc key TPR Measure pressure transmit raw data or Stop on Toolbar to TO or TOR Measure oxygen transmit raw data stop test Display calibration coefficients all coefficients and DC dates listed below are included in display Use individual commands below to modify a particular coefficient or date TCALDATE S S Temperature calibration date TAO F F Temperature AO TA1 F F Temperature Al TA2 F F Temperature A2 TA3 F F Temperature A3 CCALDATE S S Conductivity calibration date Coefficients CG F F Conductivity G F floating CH F F Conductivity H point number CI F F Conductivity I S string with CJ F F Conductivity J no spaces CPCOR F F Conductivity pcor CTCOR F F Conductivity tcor Dates shown WBOTC F F Cond
77. t the Tygon tubing to the pump exhaust on the sensor end cap Section 2 Description of SBE 52 MP Data I O The SBE 52 MP receives setup instructions and outputs data and diagnostic information via a 0 3 3 volt logic level link or RS 232 interface factory configured It is factory configured for 9600 baud 8 data bits 1 stop bit and Note SEATERM has not been revised to explicitly include the 52 MP A If your 52 MP has an RS 232 no parity interface or using a logic level to RS 232 converter with a If you want to set up a 52 MP that has been configured with the logic level 52 MP that has a logic level interface via an RS 232 interface for example via a computer RS 232 port interface select the SBE 49 in you will require a converter to perform the logic level to RS 232 conversion SEATERM s Configure menu Sea Bird can supply an interface box PN 90488 1 which provides logic the SBE 49 uses the same data level input to RS 232 conversion Alternatively you can supply your bits stop bit and parity own converter 10 Section 3 Power and Communications Test Section 3 Power and Communications Test This section describes software installation and the pre check procedure for preparing the SBE 52 MP for deployment The power and communications test will verify that the system works prior to deployment Software Installation Recommended minimum system requirements for running SEASOFT Win32 Pentium 90 C
78. tion 4 Deploying and Operating SBE 52 MP Status Command DS Display operating status and setup parameters Equivalent to Status on Toolbar List below includes where applicable command used to modify parameter e firmware version serial number e real time output enabled OUTPUTPRESSURE OUTPUTCTDO OUTPUTCTDORAW OUTPUTSN e cutoff pressure to stop autonomous sampling PCUTOFF e automatically average stored data into bins when profile is stopped because pressure lt PCUTOFF AUTOBINAVG e number of samples in memory e number of bins in memory e spacing between bins for top bin TOP_BIN_INTERVAL e size of each top bin TOP_BIN_SIZE maximum pressure for top section TOP_BIN_MAX e spacing between bins for middle bin MIDDLE_BIN_INTERVAL e size of each middle bin MIDDLE_BIN_SIZE e maximum pressure for middle section MIDDLE_BIN_MAX e spacing between bins for bottom bin BOTTOM_BIN_INTERVAL e size of each bottom bin BOTTOM_BIN_SIZE e calculate transition bin between top and middle bin and between middle and bottom bin INCLUDETRANSITIONBIN e oxygen frequency multiplier OXMULTIPLIER Example Status DS command user input in bold command used to modify parameter in parentheses S gt DS SBE 52 MP CTD 2 1 SERIAL NO 0004 output CTDO when profiling OUTPUTPRESSURE OUTPUTCTDO OUTPUTCTDORA W OUTPUTSN stop profile when pressure is less than 5 0 decibars PCUT
79. tr Keres rerin eo Eea A EE E 37 SBE 52 MP Orientatl OM e E r E E E a eE 37 Positioning Relative to Other Instruments s ssseseseseseereresrereerreerereerees 39 Deployment Recovery Technique and Pump Operation cesses 40 Processing Data cat viciettestgi la RoR as el ele 40 Deployment irni e dele ete Ea E ins E nachna ave 41 ReGOyery nr a EE E E E E E 42 Section 5 Routine Maintenance and Calibration s ssssssssees 43 Corrosion Precautions ccscccsseesceesceescesecesecesecesecaecnaecaeecaeeeaeeaeecaeeeseeeneeenees 43 Connector Mating and Maintenance 0 ee eeeseeseeeecneeeeceseeeeeseceeesecneeeeeeaeeees 43 Conductivity Cell Maintenance 0 0 0 ec eeeeseesecnecseesecneseecseeeeeaeceeesecnereeeaeeees 44 Pressure Sensor Maintenance c ccsccesccesecesececeesecenecacecaeeeaeeeeeeeeeesseeeeeesees 44 Oxygen Sensor Maintenance 000 0 ee eecesecesecesecseecseeseecaeecaeeeeeeeeeeeeeeeseeeensees 44 Replacing Optional Anti Foulant Devices Mechanical Design Change 45 Replacing Optional Anti Foulant Devices SBE 49 uo ceeessessesecneeereneeeees 46 Sensor Calibration een eeren niire ree ieee reinen iE eSEE e EE eNe e 48 Section 6 Troubleshooting ssessesssecssecssecssecesecesocssocesocesocesooesooseo 50 Problem 1 Unable to Communicate with SBE 52 MP ssseesessesseseessreessseeees 50 Problem 2 Unreasonable Data eescesesscesnceceseeeeseeceeeeeenceceeeeeneeceseeeeneeeee
80. uctivity circuit temperature correction are when PCALDATE S S Pressure calibration date calibrations PA0 F F Pressure AO were PA1 F F Pressure Al performed PA2 F F Pressure A2 Calibration PTCA0 F F Pressure temperature compensation ptca0 coefficients PTCAI1 F F Pressure temperature compensation ptcal are initially PTCA2 F F Pressure temperature compensation ptca2 factory set and PTCBO F F Pressure temperature compensation ptcb0 should agree PTCB1 F F Pressure temperature compensation ptcb1 with PTCB2 F F Pressure temperature compensation ptcb2 Calibration PTHAO0 F F Pressure temperature AO Certificates PTHA1 F F Pressure temperature Al Shipped with PTHA2 F F Pressure temperature A2 Pave POFFSET F F Pressure offset correction OCALDATE S S Oxygen calibration date OXSOC F F Oxygen SOC OXFOF F F Oxygen F offset OXA F F Oxygen A OXB F F Oxygen B OXC F F Oxygen C OXE F F Oxygen E Sample pressure for 1 minute Convert raw pressures RESETOFFSET to db and calculate average Set POFFSET to sum of existing POFFSET and calculated average 56 Appendix IV AF24173 Anti Foulant Device Appendix IV AF24173 Anti Foulant Device AF24173 Anti Foulant Devices supplied for user replacement are supplied in polyethylene bags displaying the following label AF24173 ANTI FOULANT DEVICE FOR USE ONLY IN SEA BIRD ELECTRONICS CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSO
81. ull the T C Duct straight out you will feel some resistance as the seals disengage Do not twist the T C Duct or apply any sideways motion or you may damage the conductivity cell Read precautionary information on product label see Appendix IV before proceeding It is a violation of US Federal Law to 3 Remove the two small Phillips head screws securing the T C Duct top to use this product in a manner the T C Duct base inconsistent with its labeling 4 Pull the T C Duct top off of the base 5 Remove the old Anti Foulant Device If the old device is difficult to remove use needle nose pliers and carefully break up material T C Duct 6 Top Base a Place the new Anti Foulant Device in the T C Duct base 7 Replace the T C Duct top on the base reinstalling the two small Phillips head screws Conductivity Temperature 8 Carefully slide the T C Duct assembly over the temperature sting cell sting aligning the large screw hole with the screw hole in the mast Push the assembly onto the end of the conductivity cell you will feel some resistance as the seals engage Do not twist the T C Duct or apply any sideways motion or you may damage the conductivity cell 9 Reinstall the large screw to secure the assembly to the mast 46 Section 5 Routine Maintenance and Calibration Anti Foulant Device in Pump Exhaust Tubing 1 Carefully cut the cable tie securing the Tygon tubing to the anti foulant device cap Slip t
82. umbing U shape is designed to stop water flow between profiles allowing minute amounts of anti foulant to concentrate inside the plumbing and keeping the sensors clean Bernoulli pressures on the intake and exhaust can cause acceleration of water in the plumbing between profiles reducing the effectiveness of the anti foulant Therefore mount and orient the 52 MP so that the intake and exhaust are on the same horizontal plane equalizing Bernoulli pressures e Achieving constant flow through plumbing while sampling by expelling initial air from plumbing The 52 MP s pump is a magnetically coupled impeller type and is not self priming Optimal orientation for the 52 MP is vertical with the U intake and exhaust at the top or horizontal with the intake below the exhaust allowing air that is in the 52 MP while on deck to be quickly expelled when it is submerged If bubbles collect in the pump it will fail to prime If bubbles collect in the conductivity cell and or dissolved oxygen plenum the signals from those sensors will be in error Failure to allow a path for the air to escape may cause problems in the first 0 to 10 meters depending on conditions up to 30 meters of data collection Beyond that depth the bubbles usually collapse sufficiently for the system to operate correctly If doing deep profiles air in the system may not be an issue because it will affect only the beginning of the very first downcast in the deployment If doing sha
83. us and setup parameters 2 x pressure cutoff db 52 MP automatically stops ECUTOFFZY autonomous sampling when pressure lt PCUTOFF x Y Reset sample number and bin number to 0 when memory fills 52 MP continues autonomous OVERWRITEMEM2 x sampling and overwrites earlier data in memory x N Do not 52 MP automatically stops autonomous sampling when memory fills Do not use unless all previous data has been uploaded INITPROFILE sets sample number for first sample to 0 and bin number for first bin to 0 Setup INITPROFILE Resets 52 MP to start saving data to beginning of memory overwriting previous data in memory and making entire memory available for recording x oxygen sensor frequency multiplier 0 4 0 OXMULTIPLIER x Typical approximately 0 25 Multiplies measured frequency by factor to convert to sensor output See configuration sheet for value for your instrument Quit session and place 52 MP in quiescent sleep Qs state Power to digital and analog electronics is turned off Memory retention is not affected OUTPUTPRESSURE x x Y Output real time pressure while sampling x N Do not x Y Output real time sample number while OUTPUTSN x sampling Real Time zs 7 7 7 Output x Y Output real time C T and P in engineering OUTPUTCTDO x units and oxygen frequency while sampling x N Do not x Y Output real time C T P pressure temperature OUTPUTCTDORAW x and oxygen in raw sensor units while sampling x N Do not x Y Autom
84. use Connect on the Toolbar or send any character to wake up the 52 MP Vi e Status bar Provides status information To display or hide the Status bar select View Status bar in the View menu 12 Section 3 Power and Communications Test Following are the Toolbar buttons applicable to the 52 MP Toolbar Button Description Equivalent Command Connect Re establish communications with 52 MP Computer responds with S gt prompt send any character Status Display instrument setup and status configuration and setup parameters number of samples in memory etc DS Coefficients Display calibration coefficients conductivity temperature pressure and optional oxygen DC Capture Capture instrument responses on screen to file useful for diagnostics File has cap extension Capture status displays in Status bar Press Capture again to turn off capture Diagnostics Perform one or more diagnostic tests on 52 MP Diagnostic test s accessed in this manner are non destructive they do not write over any existing instrument settings DS DC and TS Stop Interrupt and end current activity such as sampling or diagnostic test press Esc key or Ctrl C Disconnect Free computer COM port used to communicate with 52 MP COM port can then be used by another program See Command Descriptions in Section 4 Deploying and Operating
85. wn Therefore for shallow profile applications orient the 52 MP with the temperature sting slightly below the plumbing exhaust this orientation provides an upward path from intake to exhaust allowing air to be quickly expelled during a brief soak below the surface ensuring proper pump operation for all casts Although Bernoulli pressures are not equalized for this orientation the difference in elevation and the resulting pressure differential is small Intake and intake exhaust slight at same a elevation exhaust Intake Exhaust For Deep Profiles For Shallow Profiles Although the 52 MP can obtain downcast data in a horizontal orientation the 52 MP s commands were designed for obtaining upcast data In particular the 52 MP automatically stops autonomous sampling when the measured pressure is less than PCUTOFF i e PCUTOFF defines the top of the upcast If sampling for a downcast make sure to set PCUTOFF above the top of the cast or the 52 MP will turn off immediately after sampling is started Example You plan to sample on downcast starting each profile at 5 decibars Set PCUTOFF 3 decibars to ensure proper operation 38 Section 4 Deploying and Operating SBE 52 MP Exhaust Intake Vertical Orientation Upcast Data Only The 52 MP is designed for obtaining upcast data when deployed in a vertical sensors up orientation This orientation with the intake and exhaust at the same elevation provides a U shape to th
86. xecute with a third party data logger or your own acquisition system EEPROM stored calibration coefficients permit data upload in ASCII engineering units mmho cm C decibars ml l Alternatively the user can select to upload data in hexadecimal or binary The 52 MP is externally powered and temporarily stores data in static RAM memory If when power is removed any data stored in memory is lost However the user programmable setup is stored in non volatile RAM and is retained when power is removed SBE 52 MP has two sampling modes e Autonomous sampling On command the 52 MP begins autonomous sampling The 52 MP runs continuously sampling at one scan per second 1 Hz It stores the data in memory and can also transmit the data in real time It can bin average the data and store the bin averaged data in memory in addition to the unaveraged data On command typically at the end of each profile the data in memory is uploaded e Polled sampling On command the SBE 52 MP takes one sample and transmits the data in real time Section 2 Description of SBE 52 MP The 52 MP s integral pump runs while the instrument is sampling providing the following advantages over a non pumped system e Improved conductivity and oxygen response The pump brings a new water sample into the system at a constant flow rate fixing the sensors time constants to ensure maximum dynamic accuracy and flushes the previously sampled water f

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