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SBE 37-SI RS

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1. lt CalibrationCoefficients DeviceType SBE37SI RS232 SerialNumber 03706017 gt lt Calibration format TEMP1 id Temperature gt lt SerialNum gt 03706017 lt SerialNum gt lt CalDate gt 04 Apr 08 lt CalDate gt TCalDate lt A0 gt 6 947802e 05 lt A0 gt TAO lt A1 gt 2 615233e 04 lt A1 gt TA1 lt A2 gt 1 265233e 06 lt A2 gt TA2 lt A3 gt 1 310479e 07 lt A3 gt TA3 lt Calibration gt lt Calibration format WBCONDO id Conductivity gt lt SerialNum gt 03706017 lt SerialNum gt lt CalDate gt 04 Apr 08 lt CalDate gt CCalDate lt G gt 1 009121e 00 lt G gt CG lt H gt 1 410162e 01 lt H gt CH lt I gt 2 093167e 04 lt I gt CI lt J gt 3 637053e 05 lt J gt CJ lt PCOR gt 9 570000e 08 lt PCOR gt CTCor lt TCOR gt 3 250000e 06 lt TCOR gt CPCor lt WBOTC gt 1 954800e 05 lt WBOTC gt CWBOTC lt Calibration gt lt Calibration format STRAINO id Pressure gt lt SerialNum gt 2478619 lt SerialNum gt lt CalDate gt 28 Mar 08 lt CalDate gt PCalDate lt PAO gt 1 729067e 00 lt PAO gt PA0 lt PA1 gt 1 415754e 01 lt PA1 gt PA1 lt PA2 gt 1 246912e 08 lt PA2 gt PA2 lt PTCA0 gt 2 243971e 00 lt PTCAO gt PTCA0 lt PTCA1 gt 1 055267e 00 lt PTCAI1 gt PTCA1 lt PTCA2 gt 2 276308e 02 lt PTCA2 gt PTCA2 lt PTCBO gt 1 003849e 02 lt PTCBO gt PTCBO0 lt PTCB1 gt 1 0145
2. See Command Perform one or more diagnostic tests on MicroCAT Diagnostic test s accessed in this manner are non destructive they do not write over any existing instrument settings Interrupt and end current activity such as uploading or diagnostic test Free computer COM port used to communicate with MicroCAT COM port can then be used by another program Descriptions in Section 4 Deploying and Operating MicroCAT 14 DS DC TS Section 3 Preparing MicroCAT for Deployment 3 Inthe Configure menu select SBE 37 The dialog box looks like this SBE 37 Configuration Options x COM Settings Upload Settings Header Information EPROM Version Interface for Cc communication between computer and MicroCAT Computer COM port baud rate data bits and parity for communication between computer and MicroCAT UMM Port Baud Rate Mode fi 3600 RS 232 Full Duplex C RS 485 Halt Duplex Data Bits C Inductive Modem C8 Modem AS485 1D oy __ _ CO Praia Aulamblealige Notes e SEATERM s baud rate must be the same as the MicroCAT baud rate set with BaudRate Baud is factory set to 9600 but can be changed by the user see Command Descriptions in Section 4 Deploying and Operating MicroCAT When you click OK SEATERM saves the Configuration Options settings to the SeaTerm ini file in Make the selections in the Configuration Opti
3. 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 MicroCAT Remove any trapped air by burping or gently squeezing the plug connector near the top and moving your fingers toward the end cap OR MCBH Connector Install the plug cable connector aligning the pins 3 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 a cable is installed on the MicroCAT before deployment 43 Conductivity Cell Maintenance CAUTIONS Do not put a brush or any object inside the conductivity cell to clean it Touching and bending the electrodes can change the calibration Large bends and movement of the electrodes can damage the cell Do not store the MicroCAT with water in the conductivity cell Freezing temperatures for example in Arctic environments or during air shipment can break the conductivity cell if it is full of water Unscrew cap and replace with barbed cap for cleaning and storage Section 5 Routine Maintenance and Calibration The MicroCAT 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 conductivity cell cleaning procedures and cleaning materials e The Active Use after each cas
4. POffset F F Pressure offset decibars Factory Settings do not modify in the field SetPumpInstalled N only valid setting for 37 SI Hardware SetPressureInstalled Configuration SetMfgDate SetPcbSerialNum1 SetPcbSerialNum2 SetPcbSerialNum3 SetPcbAssembly1 SetPcbAssembly2 SetPcbAssembly3 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 SENSORS 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 tributylt
5. Program the MicroCAT for the intended deployment see Section 3 Preparing MicroCAT for Deployment for connection information see information above on commands and sampling modes 1 2 3 Set the date and time DateTime and establish setup parameters Ensure all data has been uploaded and then send InitLogging to make the entire memory available for recording Establish operating command parameters These parameters configure the MicroCAT s response upon waking up and direct the MicroCAT to sample data once at pre programmed intervals or continuously Deployment l Sea Bird Tapped holes for mounting mounting clamp clamp and guide Tapped or flat holes for surface mounting mounting guide brackets 2 Remove plugs 2 Anti foulant device cups 2 3 CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors 4 5 6 Te The MicroCAT can be mounted with customer supplied hardware or can be ordered with pre installed Sea Bird mounting brackets Install customer supplied mounting equipment if Sea Bird mounting clamp and guide or brackets are not pre installed A Install a mounting bracket that attaches to the tapped holes in the MicroCAT sensor end cap Use titanium hardware to attach the mounting bracket to the MicroCAT and place non metallic material between the titanium housing and any dissimilar metal in the bracket Do not drill any h
6. Removing the guard without disconnecting the cups from the guard will break the cell If the guard must be Cup removed Plug Cap 1 Remove the two screws connecting each anti foulant device cup to the guard 2 Remove the four Phillips head screws connecting the guard to the housing and sensor end cap 3 Gently lift the guard away 46 Sensor Calibration Note Please remove AF24173 Anti Foulant Devices from the anti foulant device cups before returning the MicroCAT to Sea Bird Store them for future use See Replacing Anti Foulant Devices for removal procedure 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 and temperature sensors on the MicroCAT are supplied fully calibrated with coefficients printed on their respective Calibration Certificates see back of manual These coefficients have been stored in the MicroCAT s EEPROM We recommend that MicroCATs be 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 fr
7. drawing minimal current To re establish control wake up click Connect on the Toolbar or press any key Command Descriptions This section describes commands and provides sample outputs Entries made with the commands are permanently stored in the MicroCAT and remain in effect until you change them See Appendix III Command Summary for a summarized command list When entering commands e Input commands to the MicroCAT in upper or lower case letters and register commands by pressing the Enter key e The MicroCAT sends an error message if an invalid command is entered e If anew command is not received within 2 minutes after the completion of a command the MicroCAT returns to the quiescent sleep state e If in quiescent sleep state re establish communications by clicking Connect on the Toolbar or pressing any key e The MicroCAT responds only to GetCD GetSD GetCC GetEC GetHD DS DC TS TSH SL SLT QS and Stop while sampling Start has been sent If you wake the MicroCAT while it is sampling autonomously for example to send DS to check on progress it temporarily stops sampling Autonomous sampling resumes when it goes back to sleep either by sending QS or after the 2 minute timeout 22 Section 4 Deploying and Operating MicroCAT Status Commands GetCD Get and display configuration data which Note includes parameters related to MicroCAT GetCD output does not include setup Most of these parame
8. 2 Install the Sea Bird I O cable connector Standard Connector Install the Sea Bird I O cable connector aligning the raised bump on the side of the connector with the large pin pin 1 ground on the MicroCAT XSG connector shown below OR MCBH Connector Install the I O cable connector aligning the pins 3 Connect the I O cable connector to your computer s serial port 4 Connect the I O cable connector s red and black wires to a power supply 8 5 24 VDC 12 Section 3 Preparing MicroCAT for Deployment Note See SEATERM s Help files Note There is at least one way and as many as three ways to enter a command e Manually type a command in Command Data Echo Area e Use a menu to automatically generate a command e Use a Toolbar button to automatically generate a command Note Once the system is configured and connected Steps 3 through 5 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 Test 1 Double click on SeaTerm exe If this is the first time the program is used the setup dialog box may appear w SeaTerm Setup x The initialization file SeaT erm ini was not found in the Windows directory Please enter the following setup information IMPORTANT To complete setup review t
9. 39 Replacement parts 61 S Sample timing 11 Sampling modes 17 autonomous 18 polled 17 serial line sync 19 SBE Data Processing 8 12 42 SeaPlot 42 SEASOFT Win32 8 12 SEATERM 8 12 13 39 main screen 13 toolbar buttons 14 Sensors 9 Serial line sync 19 32 Setup commands 30 ShallowCAT handling 45 Software 8 Software installation 12 Specifications 9 Status commands 23 Storage 44 Super O Lube 51 System description 7 Index 64 T Terminal program 8 13 installation 12 Testing 12 Thermistor 52 Timeout description 22 Triton 51 Troubleshooting 49 U Unpacking MicroCAT 6 Upload 33 Uploading data 39 WwW Wiring 12
10. Connector j B A 108 0 4 25 Standard Without Optional Wire Mounting Optional Flat Surface Mounting Hardware Clamp and Guide Mounting Brackets Optional Wet Pluggable MCBH 4MP WB TI Standard 3 8 length base XSG 4 BCL HP SS 1 2 20 thread or Pin Signal 1 Common 2 RS 232 data receive 3 RS 232 data transmit 4 8 5 24VDC external power 10 Section 2 Description of MicroCAT Sample Timing Notes e Time output and stored with the data is the time at the start of the sample after a small amount of time for the MicroCAT to wake up and prepare to sample For example if the MicroCAT is programmed to wake up and sample at 12 00 00 the stored and displayed time will indicate 12 00 01 or 12 00 02 e See Section 4 Deploying and Operating MicroCAT for command descriptions Note Autonomous Sampling is in effect when e AutoRun Y and SampleMode 2 or 3 or e AutoRun N and SampleMode 2 or 3 and sampling is started with Start The MicroCAT goes to sleep between samples when sampling at pre defined intervals SampleMode 2 Note Polled Sampling is in effect when e Sampling is started with a polled sampling command TS etc Serial Line Sync is in effect when e AutoRun N SampleMode 1 sampling is started with Start and another sample is obtained each time a pulse is received until Stop is sent AutoRun Y SampleMode 1 sampling is started by applying power and another s
11. MicroCAT Note Sampling is started by one of the following methods e if AutoRun N Send Start e if AutoRun Y Apply power Operating Commands Operating commands configure the MicroCAT s response on waking up and direct the MicroCAT to sample once at pre programmed intervals or continuously SampleMode x SampleInterval x x 1 When commanded to sample take a single sample x 2 When commanded to sample sample at intervals defined by SampleInterval x 3 When commanded to sample sample continuously x interval 6 21600 seconds between samples when SampleMode 2 Note AutoRun x x Y When power is applied wake up and HT AutoRUN Y ang SampleMode 2 or automatically begin to sample as defined by 3 a simple 3 wire system Power a Ground Transmit may be used for SampleMode deployment since it is not necessary x N When power is applied wake up but do to command the MicroCAT to take not automatically begin to sample unless Start cach sample Aotetnat tie MICOCAT has been sent and Stop has not been sent does not respond to any commands in EE i ates eg Start Start sampling as defined by SampleMode Applicable if e AutoRun N or e AutoRun Y and you previously sent Stop to stop sampling Note You may need to send Stop several Stop Stop sampling Press any key before entering times to get the MicroCAT to respond Stop Stop must be sent before uploading data This is mos
12. Take sample store in buffer output data TSH Take sample store in buffer do not output Take sample store in buffer and in FLASH memory TSS Polled output data Sampling TSn x Take x samples and output data SL Output last sample stored in buffer Output last sample stored in buffer then take new SLT sample and store in buffer do not output data from new sample DDb Upload scan b to scan e in converted decimal form regardless of OutputFormat Data Upload GetSamples b e Upload scan b to scan e in format defined by esse OutputFormat c TCalDate S S Temperature calibration date Calibration TAO F F Temperature AO Tone TAI F F Temperature Al floating point number TA2 F F Temperature A2 S string with TA3 F F Temperature A3 no spaces CCalDate S S Conductivity calibration date CG F F Conductivity G CH F F Conductivity H Dates o CI F F Conductivity I are when a Lea CJ F Faconducuvity J were WBOTC F F Conductivity wbotc performed CTCor F F Conductivity ctcor Calibration CPCor F F Conductivity cpcor coefficients are PCalDate S S Pressure calibration date initially factory PA0 F F Pressure AO setand should PA1 F F Pressure A1 agree with Calibration PA2 F F Pressure A2 Certificates PTCA0 F F Pressure ptca0 shipped with PTCA1 F F Pressure ptcal MicroCATs PTCA2 F F Pressure ptca2 iis PTCBO F F Pressure ptcb0 coefficients with GetCC or PTCB1 F F Pressure ptcb1 DC PTCB2 F F Pressure ptcb2
13. The MicroCAT s aged and pressure protected thermistor has a long history of exceptional accuracy and stability typical drift is less than 0 002 C per year Electrical isolation of the conductivity electronics eliminates any possibility of ground loop noise The MicroCAT s internal field conductivity cell is immune to proximity errors and unaffected by external fouling A plastic cup with threaded cover at each end of the cell retains the expendable AF24173 Anti Foulant Device Section 2 Description of MicroCAT Notes e Help files provide detailed information on the use of SEATERM and SBE Data Processing e A separate software manual on CD ROM contains detailed information on the setup and use of SBE Data Processing The MicroCAT s optional pressure sensor developed by Druck Inc has a superior design that is entirely different from conventional silicon types in which the deflection of a metallic diaphragm is detected by epoxy bonded silicon strain gauges The Druck sensor employs a micro machined silicon diaphragm into which the strain elements are implanted using semiconductor fabrication techniques Unlike metal diaphragms silicon s crystal structure is perfectly elastic so the sensor is essentially free of pressure hysteresis Compensation of the temperature influence on pressure offset and scale is performed by the SBE MicroCAT s CPU Future upgrades and enhancements to the MicroCAT firmware can be easily instal
14. The following commands are used to set pump and pressure sensor configuration manufacturing date PCB serial numbers and PCB assembly numbers at the factory Do not modify in the field SetPumpInstalled N pump is never installed for 37 SI SetPressureInstalled pressure sensor is optional and is factory installed SetMfgDate SetPCBSerialNum1 SetPCBSerialNum2 SetPCBSerialNum3 SetPCBAssembly1 SetPCBAssembly2 SetPCBAssembly3 34 Section 4 Deploying and Operating MicroCAT Data Output Formats Each scan ends with a carriage return lt CR gt and line feed lt LF gt Notes e Time is the time at the start ot the e OutputFormat 0 raw decimal data for diagnostic use at Sea Bird sample tttttt cccc ccc pppppp vvvv dd mmm yyyy hh mm ss The MicroCAT 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 decibars the MicroCAT outputs pressure relative to the ocean surface i e at the surface the output pressure is 0 decibars The MicroCAT uses the following equation to convert psia to decibars pressure db pressure psia 14 7 0 689476 where tttttt temperature A D counts cccc ccc conductivity frequency Hz PPpppp pressure sensor pressure A D counts sent
15. Y and OutputTime Y output depth salinity sound velocity density date and time as well as C T and P With 800 meters of cable the MicroCAT requires a baud rate of 1200 Number of characters see Data Output Formats 8 T 2 comma amp space 8 C 2 comma amp space 8 P 2 comma amp space 8 depth 2 comma amp space 8 amp salinity 2 comma amp space 8 sound velocity 2 comma amp space 8 density 2 comma amp space 11 date 2 comma amp space 8 time 2 carriage return amp line feed 93 Time required to transmit data 93 characters 10 bits character 1200 0 78 seconds What is the minimum time between samples for continuous sampling From Sample Timing in Section 2 Description of MicroCAT for continuous sampling with pressure Sampling time 1 5 seconds So minimum time between samples sampling time transmission time 1 5 0 78 2 28 seconds 20 Section 4 Deploying and Operating MicroCAT Power and Cable Length There are two issues to consider e Limiting the communication IR loss to 1 volt higher IR loss will prevent the instrument from transmitting real time data because of the difference in ground potential e Supplying enough power at the power source so that sufficient power is available at the instrument after considering IR loss Each issue is discussed below Note Limiting Communication IR Loss to 1 Volt Common wire resistances Resistance o
16. applicable for 37 SIP lt SampleMode gt interval sample lt SampleMode gt SampleMode lt SampleDataFormat gt raw Decimal lt SampleDataFormat gt OutputFormat lt OutputSalinity gt no lt OutputSalinity gt OutputSalinity lt OutputSV gt no lt OutputSVv gt OutputS V lt OutputDepth gt yes lt OutputDepth gt OutputDepth lt Latitude gt 30 0 lt Latitude gt Latitude lt OutputDensity gt no lt OutputDensity gt OutputDensity lt OutputTime gt yes lt OutputTime gt OutputTime lt SampleInterval gt 15 lt SampleInterval gt SampleInterval lt AutoRun gt no lt AutoRun gt AutoRun lt StoreData gt yes lt StoreData gt StoreData lt ConfigurationData gt 23 Section 4 Deploying and Operating MicroCAT Status Commands continued GetSD Example user input in bold command used to modify parameter in parentheses getsd lt StatusData DeviceType SBE37SI RS232 SerialNumber lt DateTime gt 2008 04 03T00 48 32 lt DateTime gt lt EventSummary numEvents 0 gt lt Power gt lt vMain gt 7 41 lt vMain gt lt vLith gt 3 16 lt vbLith gt lt Power gt lt MemorySummary gt lt Bytes gt 0 lt Bytes gt lt Samples gt 0 lt Samples gt lt SamplesFree gt 559240 lt SamplesFree gt lt SampleLength gt 15 lt SampleLength gt lt MemorySummary gt lt Logging gt no lt Logging gt lt StatusData gt Get and display status data which contains data that chang
17. are known In moored free flushing instruments such as the 37 SI MicroCAT wave action mooring motion and currents flush the conductivity cell at a faster rate than the environment changes so the T and C measurements stay closely synchronized with the environment i e even slow or varying response times are not significant factors in the salinity calculation More typical causes of salinity spikes in a moored 37 SI include Cause Solution 1 Severe external bio fouling can restrict flow through the conductivity cell to such an extent that the conductivity measurement is significantly delayed from the temperature measurement Cause Solution 2 For a MicroCAT moored at shallow depth differential solar heating can cause the actual temperature inside the conductivity cell to differ from the temperature measured by the thermistor Salinity spikes associated mainly with daytime measurements during sunny conditions may be caused by this phenomenon Cause Solution 3 For a MicroCAT moored at shallow depth air bubbles from breaking waves or spontaneous formation in supersaturated conditions can cause the conductivity cell to read low of correct 50 Glossar Glossary Convert Toolbar button in SEATERM to convert ASCII asc data uploaded with SEATERM to cnv format Once data is converted to cnv format SBE Data Processing can be used to analyze and display data Fouling Biological growth in the conductivity cell during
18. converted decimal data in XML X 3 output converted binary data x Y output date and time Only applies if OutputTime x OutputFormat 0 1 or 2 x N do not x Y calculate and output salinity psu Only applies Output OutputSal x if OutputFormat 1 or 2 x N do not Format x Y calculate and output sound velocity m sec Setup Only applies if OutputFormat 1 or 2 OutputS V x x N do not OutputDensity x x Y calculate and output local density kg m Only applies if OutputFormat 1 or 2 x N do not OutputDepth x x Y calculate and output depth meters Only applies if OutputFormat 1 or 2 x N do not Latitude x x latitude degrees to use in depth calculation 55 Appendix Ill Command Summary CATEGORY COMMAND DESCRIPTION x 1 When commanded to sample take 1 sample x 2 When commanded to sample sample at SampleMode x intervals defined by SampleInterval x 3 When commanded to sample sample continuously in x interval seconds between samples 6 21600 if R SampleInterval x SampleMode 2 perating x Y When power applied automatically sample as a defined by SampleMode AutoRun x x N When power applied do not begin to automatically sample Start Start sampling as defined by SampleMode Stop sampling Must send Stop before uploading Stop data TS
19. from the guard C Remove the flat Phillips head titanium machine screw connecting the housing to the sensor end cap D Remove the housing by pulling it out firmly and steadily It may be necessary to twist or rock the housing back and forth to loosen it Screws securing sensor end cap shown partially removed 3 The electronics are on a sandwich of three rectangular PCBs These PCBs are assembled to a bulkhead To remove the PCB assembly A Remove the Phillips head screw on the bulkhead that fits inside the small diameter brass sleeve The Phillips head screw is a 198 mm 7 8 inch threaded rod with Phillips head B Pull out the PCB assembly by carefully grasping the bulkhead and pulling The assembly will pull away from the 10 position edge connector used to connect to the cells Brass sleeve Screw securing lectronics 53 A Reassembly Align brass sleeve with hole Note If the rod will not tighten the PCBs have not fully mated or are mated in reverse Note Before delivery a desiccant package is inserted in the housing and the electronics chamber is filled with dry Argon gas These measures help prevent condensation To ensure proper functioning Install a new desiccant bag each time you open the electronics chamber If a new bag is not available see Application Note 71 Desiccant Use and Regeneration drying If possible dry gas backfill each time you open the housing If you cannot
20. power When ready to begin sampling To save real time data click Capture on Toolbar to capture data to a file program requests file name for data Apply power and press any key to wake up START MicroCAT takes and transmits 1 sample stores in memory and goes to sleep When ready to take another sample send a pulse press any key to wake up take and transmit 1 sample store in memory and go to sleep Repeat as desired When ready to stop sampling and go to sleep Press any key STOP Qs Example 2 AutoRun Y user input in bold Set up to take 1 sample when prompted store data in memory and send date and time with data Remove power Apply power to wake up SAMP LEMODE 1 STOREDATA Y OUTPUTTIME Y AUTORUN Y GETCD to verify setup Remove power When ready to begin sampling To save real time data click Capture on Toolbar to capture data to a file program requests file name for data Apply power MicroCAT takes and transmits 1 sample stores in memory and goes to sleep When ready to take another sample send a pulse press any key to wake up take and transmit 1 sample store in memory and go to sleep Repeat as desired When ready to stop sampling Remove power To change setup temporarily disable serial line sync Apply power MicroCAT automatically begins the sampling sequence Press any key STOP send desired commands Remove power 19 Section 4 Deployin
21. the signal line open circuit or within 0 3 V relative to ground to minimize power consumption when not trying to send commands Examples Autonomous Sampling both examples illustrate interval sampling setup for continuous sampling is similar but set SampleMode 3 instead of 2 MicroCAT ignores any entry for SampleInterval in continuous mode Example 1 AutoRun N user input in bold Set up to take a sample every 20 seconds store data in memory output data in converted decimal format and send date and time with data Send power off Apply power Click Connect on Toolbar or press any key to wake up SAMP LEMODE 2 SAMPLEINTERVAL 20 STOREDATA Y OUTPUTFORMAT 1 OUTPUTTIME Y AUTORUN N GETCD to verify setup Qs Remove power When ready to begin sampling To save real time data click Capture on Toolbar to capture data to a file program requests file name for data Apply power and click Connect on Toolbar or press any key to wake up START MicroCAT takes and transmits sample stores in memory and repeats sequence every 20 seconds When ready to stop sampling and go to sleep Press any key STOP Qs Example 2 AutoRun Y user input in bold Set up to take a sample every 20 seconds store data in memory output data in converted decimal format and send date and time with data Remove power Apply power to wake up SAMP LEMODE 2 SAMPLEINTERVAL 20 STOREDATA Y OUTPUTFORMAT 1 OUTPUTTIME Y AU
22. to communicate with the MicroCAT Super O Lube Silicone lubricant used to lubricate O rings and O ring mating surfaces Super O Lube can be ordered from Sea Bird but should also be available locally from distributors Super O Lube is manufactured by Parker Hannifin see http www parker com ead cm2 asp cmid 3956 for details TCXO Temperature Compensated Crystal Oscillator Triton X100 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 Mallinckrodt Baker see http www mallbaker com changecountry asp back Default asp for local distributors 51 Appendix Functional Description Appendix l Functional Description Sensors Note Pressure ranges are expressed in meters of deployment depth capability The MicroCAT embodies the same sensor elements 3 electrode 2 terminal borosilicate glass cell and pressure protected thermistor previously employed in our modular SBE 3 and SBE 4 sensors and in the SEACAT and SEACAT plus family The MicroCAT s optional pressure sensor developed by Druck Inc has a superior new design that is entirely different from conventional silicon types in which the deflection of a metallic diaphragm is detected by epoxy bonded silicon strain gauges The Druck sensor employs a micro m
23. 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 Friday 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 MicroCAT The manual provides step by step details for performing each task 1 Perform pre check procedures to test power and communications Section 3 Preparing MicroCAT for Deployment 2 Deploy MicroCAT Section 4 Deploying and Operating MicroCAT A Set date and time DateTime B Ensure all data has been uploaded and then send InitLogging to make entire memory available for recording if desired C Establish setup and operating parameters D Remove protective plugs from anti foulant device cups and verify AF24173 Anti Foulant Devices are installed Leave protective plugs off for deployment Install I O cable connector and locking sleeve
24. 10e 02 lt PTCBI1 gt PTCB1 lt PTCB2 gt 2 057110e 04 lt PTCB2 gt PTCB2 lt PTEMPA0 gt 5 669780e 01 lt PTEMPAO gt PTempA0 lt PTEMPA1 gt 5 474043e 02 lt PTEMPA1 gt PTempA1 lt PTEMPA2 gt 1 267908e 05 lt PTEMPA2 gt PTempA2 lt POFFSET gt 0 000000e 00 lt POFFSET gt POffset decibars lt PRANGE gt 0 000000e 00 lt PRANGE gt PRange psi lt Calibration gt lt CalibrationCoefficients gt 25 Section 4 Deploying and Operating MicroCAT Status Commands continued GetEC Get and display event counter data which can help to identify root cause of a malfunction Event counter records number of occurrences of common timeouts power on resets etc Can be cleared with ResetEC Possible events that may be logged include e WDT reset unexpected reset e PON reset power cycled on each time power is applied e ErrorADC12TimeOut response delayed from A D converter that measures external power and back up lithium battery power e ErrorUARTOTimeOut timeout for transmitter to finish transmitting previous character via RS 232 e ErrorAD7714TimeOut response delayed from temperature and pressure A D converter e ErrorInvWakeUpFlag unexpected wakeup e ErrorFLASHTimeOut problem with writing data to FLASH memory e Alarm long time to take next sample is too far in future e Alarm short woke up MicroCAT to send a command while logging and missed taking a sample e L
25. 2 231459 Anti foulant device cup Holds AF24173 Anti Foulant Device 231505 Anti foulant device cap Secures AF24173 Anti Foulant Device in cup 30984 Plug Seals end of anti foulant cap when not deployed keeping dust and aerosols out of conductivity cell during storage 30411 Triton X 100 Octyl Phenol Ethoxylate Reagent grade non ionic cleaning solution for conductivity cell supplied in 100 strength dilute as directed 50087 1 Conductivity cell filling amp storage device with hose barb caps For cleaning and storing conductivity cell 30507 Parker 2 206N674 70 O ring O ring between end of conductivity cell and anti foulant device cup 60034 37 SI SIP spare hardware O ring kit Assorted hardware and O rings including e 30859 Machine screw 8 32 x 3 8 FH PH titanium secures housing to I O connector end cap housing to sensor end cap and guard to sensor end cap e 30857 Parker 2 033E515 80 O ring I O connector end cap and sensor end cap O ring 30544 Machine screw 8 32 x 1 2 FH PH titanium secures guard to sensor end cap through holes that also secure housing to end cap e 30860 Machine screw 6 32 x Y2 FH TI secures cable clamp half to flat area of sensor end cap e 30900 Machine screw 1 4 20 x 2 hex head titanium secures mounting clamp e 30633 Washer 1 4 split ring lock titanium for screw 30900
26. Deploy MicroCAT using optional Sea Bird mounting hardware or customer supplied hardware If desired save real time data to a file using Capture on SEATERM s Toolbar or your own software Upload data from memory 5 T m T Q Unpacking MicroCAT Section 1 Introduction Shown below is a typical MicroCAT shipment SBE 37 SI MicroCAT 25 pin to 9 pin adapter for use with computer with DB 25 connector I O cable Spare hardware and o ring kit Conductivity cell cleaning solution Triton X SBE 37 SIP MicroCAT MicroCAT User Manual Software and Electronic Copies of Software Manuals and User Manual Section 2 Description of MicroCAT Section 2 Description of MicroCAT This section describes the functions and features of the SBE 37 SI MicroCAT including specifications dimensions end cap connector and sample timing System Description G Ka Standard Optional titanium plastic housing ShalowCAT housing The SBE 37 SI MicroCAT is a high accuracy externally powered conductivity and temperature pressure optional recorder with non volatile memory which includes a standard RS 232 serial interface Designed to be incorporated into oceanographic sensing systems MicroCATs have non corroding titanium housings rated for operation to 7000 meters 23 000 feet or pressure sensor full scale range An optional plastic ShallowCAT housing rated for 250 meters 820 fee
27. SBE 37 SI MicroCAT Conductivity and Temperature Recorder with RS 232 Interface Shown with standard titanium housing optional ShallowCAT plastic housing available 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 023 04 15 08 Website www seabird com Firmware Version 3 0 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 Section 1 Introduction sscsssssers
28. TORUN Y GETCD to verify setup Remove power When ready to begin sampling To save real time data click Capture on Toolbar to capture data to a file program requests file name for data Apply power to wake up MicroCAT takes and transmits sample stores in memory and repeats sequence every 20 seconds When ready to stop sampling Remove power To change setup Apply power to wake up MicroCAT automatically begins sampling sequence Press any key STOP send desired commands Remove power 18 Section 4 Deploying and Operating MicroCAT Serial Line Sync Sampling For Serial Line Sync a simple pulse a single character on the RS 232 serial line causes a MicroCAT to wake up sample transmit the data and go to sleep automatically This mode provides easy integration with Acoustic Doppler Current Profilers ADCPs or current meters which can synchronize MicroCAT sampling with their own When sampling in this mode keep the signal line open circuit or within 0 3 V relative to ground to minimize power consumption when not trying to send a pulse to take a sample Examples Serial Line Sync Example 1 AutoRun N user input in bold Set up to take 1 sample when prompted store data in memory and send date and time with data Send power off command Click Connect on Toolbar or press any key to wake up SAMP LEMODE 1 STOREDATA Y OUTPUTTIME Y AUTORUN N GETCD to verify setup Qs Remove
29. achined silicon diaphragm into which the strain elements are implanted using semiconductor fabrication techniques Unlike metal diaphragms silicon s crystal structure is perfectly elastic so the sensor is essentially free of pressure hysteresis Compensation of the temperature influence on pressure offset and scale is performed by the MicroCAT s CPU The pressure sensor is available in the following pressure ranges 20 100 350 600 1000 2000 3500 and 7000 meters Sensor Interface Temperature is acquired by applying an AC excitation to a hermetically sealed VISHAY reference resistor and an ultra stable aged thermistor with a drift rate of less than 0 002 C per year A 24 bit A D converter digitizes the outputs of the reference resistor and thermistor and optional pressure sensor AC excitation and ratiometric comparison using a common processing channel 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 Real Time Clock To minimize power and improve clock accuracy a temperature compensated crystal oscillator TCXO is used as the real time clock frequency source The TCXO is accurate to 1 minute per year 0 C to 40 C 52 Appendix Il Electronics Disassembly Reassembl Appendix Il Electronics Disassembly Reass
30. ample is obtained each time a pulse is received until Stop is sent Sample timing is dependent on several factors including e Sampling mode autonomous interval or continuous sampling polled or serial line sync e Inclusion of optional pressure sensor in MicroCAT e Number of characters of data transmitted The MicroCAT transmits data after it completes the previous sample and before it starts the next sample Add transmission time to sampling time to determine the minimum time between samples see Baud Rate Cable Length Power and Data Transmission Rate in Section 4 Deploying and Operating MicroCAT Autonomous Sampling Interval Sampling SampleMode 2 taking a sample every SampleInterval seconds e Without pressure sampling time 1 8 seconds time between samples seconds SampleInterval e With pressure sampling time 2 4 seconds time between samples seconds SampleInterval Continuous Sampling SampleMode 3 e Without pressure sampling time 1 0 seconds e With pressure sampling time 1 5 seconds Polled Sampling or Serial Line Sync Time from end of take sample command to beginning of reply e Without pressure time 2 0 seconds e With pressure time 2 6 seconds 11 Section 3 Preparing MicroCAT for Deployment Section 3 Preparing MicroCAT for Deployment This section describes the pre check procedure for preparing the MicroCAT for deployment including installing software and testing
31. and Operating MicroCAT Notes e The MicroCAT s baud rate set with BaudRate must be the same as SEATERM s baud rate set in the Configure menu e BaudRate must be sent twice After the first entry the MicroCAT changes to the new baud and then waits for the command to be sent again at the new baud In the Communications menu select Baud Rate and select the new baud rate Then retype the command This prevents you from accidentally changing to a baud that is not supported by your computer If it does not receive the command again at the new baud it reverts to the previous baud rate Note The MicroCAT automatically enters quiescent state after 2 minutes without receiving a command This timeout algorithm is designed to conserve power if the user does not send QS to put the MicroCAT to sleep General Setup Commands DateTime mmddyyyyhhmmss Set real time clock month day year hour minute second Example Set current date and time to 10 July 2008 12 00 00 user input in bold datetime 07102008120000 Baud Rate x OutputExecutedTag x x baud rate 600 1200 2400 4800 9600 19200 38400 57600 or 115200 Default 9600 Check capability of your computer and terminal program before increasing baud rate Command must be sent twice to change rate Length of cable that MicroCAT can drive is dependent on baud See Baud Rate Cable Length Power and Data Transmission Rate
32. ate is documented on the Configuration Sheet in this manual e Check cabling between the computer and MicroCAT 15 Section 3 Preparing MicroCAT for Deployment 6 Display MicroCAT status information by typing DS and pressing the Enter key The display looks like this SBE37SI RS232 3 0 SERIAL NO 6017 03 Apr 2008 00 48 50 vMain 7 41 vLith 3 16 samplenumber 0 fr 559240 status not logging sample interval 15 seconds data format converted engineering output time sample mode interval sample auto run no store data yes 7 Command the MicroCAT to take a sample by typing TS and pressing the Enter key The display looks like this if optional pressure sensor installed OutputFormat 1 OutputTime Y and you are not outputting salinity sound velocity density or depth 23 7658 0 00019 0 062 03 Apr 2008 00 51 30 where 23 7658 temperature in degrees Celsius 0 00019 conductivity in S m 0 062 pressure in decibars 03 Apr 2008 date 00 51 30 time These numbers should be reasonable i e room temperature zero conductivity barometric pressure gauge pressure 8 Command the MicroCAT to go to sleep quiescent state by typing QS and pressing the Enter key The MicroCAT is ready for programming and deployment 16 Section 4 Deploying and Operating MicroCAT Section 4 Deploying and Operating MicroCAT This section includes e System operation with example sets
33. auses 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 separately 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 dispos
34. d header information option Click OK to save the settings Default Help OK 39 Section 4 Deploying and Operating MicroCAT Note You may need to send Stop several times to get the MicroCAT to respond In the Configure menu select Header Form to customize the header The dialog box looks like this default prompts are shown Prompt for line 1 Shi Prompt for line 2 Cruise Prompt for line 3 Staion ss Ss Prompt for line 4 Latitude Prompt for line 5 longitude Prompt for line 6 Prornpttor line 7 Co Prompt for line 8 es Promptiorline3 SsSs S ssSsSSSCSsi S Prompt for line 10 Prompttorline 11 o Prompttor line 12 o The entries are free form 0 to 12 lines long This dialog box establishes e header prompts that appear for the user to fill in when uploading data if Prompt for header information was selected in the Configuration Options dialog box Step 3 e header included with the uploaded data if Include default header form in upload file was selected in the Configuration Options dialog box Step 3 Enter the desired header header prompts Click OK Click Connect on the Toolbar or press any key to begin communications with the MicroCAT The display looks like this s gt if OutputExecutedTag N or lt Executed gt if OutputExecutedTag Y This shows that correct communications between the computer and the MicroCAT has been established If the system do
35. d if sampling data Start has been sent SL Output last sample stored in buffer SLT Output last sample stored in buffer Then take new sample and store data in buffer do not output data from new sample Notes Data Upload Commands e Use Upload on the Toolbar or Upload Data in the Data menu to Stop sampling send Stop command before uploading data upload data that will be processed by SBE Data Processing Manually DDb e Upload data from scan b to scan e in entering a data upload command does not produce data with the required header information for OutputFormat processing by our software These First sample is number 1 td commands are included here for As data is uploaded screen first displays reference for users who are writing start time their own software start sample number converted decimal form regardless of Before using Upload on the These are start time and starting sample Toolbar or Upload Data in the Data number for last set of logged data can be menu set OutputExecutedTag N useful in determining what data to review OutputDensity N and OutputDepth N GetSamples b e Upload data from scan b to scan e in format e If not using Upload on the Toolbar defined by OutputFormat or Upload Data in the Data menu First sample is number 1 To save data to a file click Capture i on the Toolbar before entering a ee fea Se CUTiTS uSpIays data upload command start sample number e See Data O
36. d of the cell New MicroCATs are shipped with an Anti Foulant Device and a protective AF24173 plug pre installed in each cup Anti Foulant Device WARNING Wearing rubber or latex gloves follow this procedure to replace each Anti Foulant Device two AF24173 Anti Foulant Devices contain bis tributyltin oxide 1 Remove the protective plug from the anti foulant device cup Handle the devices only with rubber or latex gloves Wear eye 2 Unscrew the cap with a 5 s inch socket wrench protection Wash with soap and water after handling 3 Remove the old Anti Foulant Device If the old device is difficult to remove Read precautionary information on product label see Appendix IV before proceeding e Use needle nose pliers and carefully break up material It is a violation of US Federal Law e If necessary remove the guard to provide easier access to use this product in a manner inconsistent with its labeling Place the new Anti Foulant Device in the cup 4 Rethread the cap onto the cup Do not over tighten 5 If the MicroCAT is to be stored reinstall the protective plug Note that the plugs must be removed prior to deployment or pressurization If the plugs are left in place during deployment the cell will not register conductivity If left in place during pressurization the cell may be destroyed Cup CAUTION Anti foulant device cups are attached to the guard and connected with tubing to the cell
37. deployment MicroCAT SBE 37 High accuracy conductivity temperature and optional pressure Recorder Monitor A number of models are available e 37 IM Inductive Modem internal battery and memory e 37 IMP Inductive Modem internal battery and memory integral Pump e 37 SM Serial interface internal battery and Memory e 37 SMP Serial interface internal battery and Memory integral Pump e 37 SI Serial Interface memory no internal battery e 37 SIP Serial Interface integral Pump memory no internal battery The SM SMP SI and SIP are available with RS 232 standard or RS 485 optional interface Note Version 3 0 and later of the 37 SI and 37 SIP include memory earlier versions did not include memory PCB Printed Circuit Board SBE Data Processing Sea Bird s Win 2000 XP data processing software which calculates and plots temperature conductivity and optional pressure and derives variables such as salinity and sound velocity Scan One data sample containing temperature conductivity optional pressure and optional date and time as well as derived variables depth salinity sound velocity and density SEASOFT Win32 Sea Bird s complete Win 2000 XP software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 includes SEATERM and SBE Data Processing SEATERM Sea Bird s WIN 95 98 NT 2000 XP software used
38. e 30634 Washer 1 4 flat titanium for screw 30900 e 31019 O ring 2 008 N674 70 for screw 30900 retains mounting clamp hardware e 31040 Screw 8 32 x 1 FH TI secures cable guide base to I O connector end cap Continued on next page 61 Appendix V Replacement Parts Continued from previous page Part wens oars Quantity in Number Part Application Description MicroCAT 4 pin RMG 4FS standard connector to 801385 9 pin DB 9S I O cable From MicroCAT to computer 1 with power leads 2 4 m 8 ft 4 pin MCIL 4FS wet pluggable connector 801206 to 9 pin DB 9S I O cable From MicroCAT to computer 1 with power leads 2 4 m 8 ft 171888 25 pin DB 25S to 9 pin For use with computer with 1 DB 9P cable adapter DB 25 connector 4 pin RMG 4FS standard 17046 1 connector dummy plug For when I O cable not used 1 with locking sleeve 4 pin MCDC 4F 171398 1 VeHPluggable connector ts when T O cable not used 1 dummy plug with locking sleeve 17043 Locking sleeve for Locks I O cable or dummy plug 1 RMG cable in place 171192 Locking sleeve for Locks I O cable or dummy plug 1 MCIL cable in place 62 Index A About Sea Bird 5 Anti Foulant Device 57 removal before shipping to Sea Bird 47 replacing 46 Autonomous sampling 18 32 B Baud rate 20 30 C Cable length 20 21 Calibration 47 calibration coefficients 34 Cleaning 44 Clock 9 52 Comma
39. e data to the computer Storing of data in the MicroCAT s FLASH memory is dependent on the particular command used Example Polled Sampling user input in bold Wake up MicroCAT Set up to wait for command each time it wakes up send data in converted decimal format send date and time and salinity with data Send power off command Assuming that power is always applied Click Connect on Toolbar or press any key to wake up AUTORUN N OUTPUTFORMAT 1 OUTPUTTIME Y OUTPUTSAL Y GETCD to verify setup Qs When ready to take a sample repeat as desired wake up MicroCAT command it to take a sample and output data and send power off command Before first sample click Capture on Toolbar to capture data to a file program requests file name for data to be stored Click Connect on Toolbar or press any key to wake up TS Qs 17 Section 4 Deploying and Operating MicroCAT Autonomous Sampling Autonomous Sampling includes both Interval and Continuous Sampling e For Interval sampling SampleMode 2 the MicroCAT samples at the programmed interval SampleInterval and sends data and goes to sleep between samples e For Continuous sampling SampleMode 3 the MicroCAT samples at the fastest rate possible for the selected parameters see Sample Timing in Section 2 Description of MicroCAT The MicroCAT continuously samples and sends data and does not go to sleep between samples During autonomous sampling keep
40. embly Disassembly CAUTION See Section 5 Routine Maintenance 1 Remove the I O connector end cap and disconnect the electronics from the and Calibration for handling end cap instructions for the plastic A Wipe the outside of the I O connector end cap and housing dry being ShallowCAT housing careful to remove any water at the seam between them B Remove the two flat Phillips head titanium machine screws Do not Screws 3 securing remove any other screws from the housing connector C Remove the I O connector end cap by pulling on it firmly and end cap steadily It may be necessary to rock or twist the end cap back and screws forth or use a non marring tool on the edge of the cap to loosen it shown partially D The end cap is electrically connected to the electronics with a 4 pin removed Molex connector Holding the wire cluster near the connector pull gently to detach the female end of the connector from the pins E Remove any water from the O ring mating surfaces inside the housing with a lint free cloth or tissue F Put the end cap aside being careful to protect the O rings from damage or contamination Remove the housing from the electronics A Wipe the outside of the sensor end cap and housing dry being careful to remove any water at the seam between them B Remove the two flat Phillips head titanium machine screws connecting the guard to the housing and sensor end cap Do not remove any other screws
41. eping most particles and debris out of the pressure port 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 2 Rinse the pressure port with warm de ionized water to remove any particles debris etc 3 Replace the pressure port plug 44 Section 5 Routine Maintenance and Calibration Handling Instructions for Plastic ShallowCAT Option The MicroCAT s standard 7000 meter titanium housing offers the best durability with a modest amount of care The ShallowCAT option substitution of a 250 meter plastic housing saves money and weight However more care and caution in handling is required To get the same excellent performance and longevity for the plastic housing version and if you need to access the electronics and or remove the screws securing the conductivity cell guard to the housing not typically done by the customer observe the following precautions e The MicroCAT s end caps are retained by screws through the side of the housing The screw holes are close to the end of the housing Particularly in a cold environment where plastic is more brittle the potential for developing a crack around the screw hole s is greater for the plastic housing than for the titanium housing Observe the following precautions gt gt When removing end caps to access the electronics be careful to avoid any
42. equency 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 sensors 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 47 Section 5 Routine Maintenance and Calibration Pressure Sensor optional Calibration The optional strain gauge pressure sensor is a mechanical diaphragm type with an initial static error band of 0 05 Consequently the sensor is capable of meeting MicroCAT s 0 10 error specification with some allowance for aging and ambient temperature induced drift Pressure sensors show most of their error as a linear offset from zero A
43. es not respond as shown above e Click Connect again or press any key e Check cabling between the computer and MicroCAT e Verify the correct instrument was selected and the COM settings were entered correctly in the Configure menu If sampling autonomously command the MicroCAT to stop logging by sending Stop 40 Section 4 Deploying and Operating MicroCAT 7 Display MicroCAT status information by typing DS and pressing the Enter key The display looks like this SBE37SI RS232 3 0 SERIAL NO 6017 03 Apr 2008 00 48 50 vMain 7 41 vLith 3 16 samplenumber 276 free 558964 status not logging sample interval 15 seconds data format converted engineering output time sample mode interval sample auto run no store data yes Send the following type each command and press the Enter key OutputExecutedTag N OutputDensity N OutputDepth N These settings are required before using the Upload button on SEATERM s Toolbar Click Upload on the Toolbar to upload stored data SEATERM responds as follows A SEATERM sends the status command DS displays the response and writes the command and response to the upload file This provides you with information regarding the number of samples in memory B If you selected By scan number range in the Configuration Options dialog box Configure menu a dialog box requests the range Enter the desired value s and click OK C SEATERM sends t
44. es while deployed List below includes where applicable command used to modify parameter Device type Serial number Date and time DateTime in ISO8601 2000 extended format yyyy mm ddThh mm ss Number of recorded events in event counter reset with ResetEC Voltages external power supply voltage and back up lithium battery voltage Memory reset with InitLogging Number of bytes in memory Number of samples in memory Number of additional samples that can be placed in memory Length number of bytes of each sample Logging status yes or no to indicate whether it is currently logging data 03706017 gt DateTime can clear with ResetEC external power supply voltage back up lithium battery power supply voltage can clear with InitLogging can clear with InitLogging 24 Section 4 Deploying and Operating MicroCAT Status Commands continued ae h h librati GetCC Get and display calibration coefficients eaS SONT A RAS CA TOVARO which are initially factory set and should were performed SE p e ifthe MGsCAT does hol ineludezan agree with Calibration Certificates shipped with MicroCAT optional pressure sensor the user input reference pressure ReferencePressure appears at the end of the conductivity calibration coefficients Example MicroCAT with a pressure sensor user input in bold command used to modify coefficient in parentheses getcc
45. g and Operating MicroCAT Baud Rate Cable Length Power and Data Transmission Rate Baud Rate Cable Length and Data Transmission Rate Notes The rate that data can be transmitted from the MicroCAT is dependent on the e Baud rate is set with amount of data to be transmitted per scan and the serial data baud rate BaudRate e Output format is set with Time to transmit data number of characters 10 bits character baud rate OutputFormat See Command Descriptions where number of characters is dependent on the included data and output format see Data Output Formats Add 2 to the number of characters shown in the output format to account for the carriage return and line feed at the end of each scan Include decimal points commas and spaces when counting characters Note that the MicroCAT transmits data after it has completed the previous sample and before it starts the next sample see Sample Timing in Section 2 Description of MicroCAT The length of cable that the MicroCAT can drive to transmit real time data is also dependent on baud rate The allowable combinations are Maximum Cable Length meters Maximum Baud Rate 1600 600 800 1200 400 2400 200 4800 100 9600 50 19200 25 38400 16 57600 8 115200 Example How long does it take to transmit data over 800 m for a MicroCAT with optional pressure sensor OutputFormat 1 OutputDepth Y OutputSal Y OutputSV Y OutputDensity
46. he calibration coefficients command DC displays the response and writes the command and response to the upload file This displays the calibration coefficients D If you selected Prompt for header information in the Configuration Options dialog box Configure menu a dialog box with the header form appears Enter the desired header information and click OK E In the Open dialog box enter the desired upload file name and click OK The upload file has a asc extension F SEATERM sends the data upload DDb e command which automatically uploads data in converted decimal format regardless of the user input for OutputFormat 41 Section 4 Deploying and Operating MicroCAT 10 Ensure all data has been uploaded from the MicroCAT by reviewing the data A that 1 2 3 Notes e The entered deployment pressure can differ from the reference pressure entered prior to deployment using ReferencePressure Pressure used internally by the MicroCAT to calculate conductivity has only a small effect on conductivity However pressure has a larger effect on the salinity calculation performed in SBE Data Processing s Derive module Entering the deployment pressure when converting the data allows you to provide more accurate pressure information than may have been available prior to deployment for calculation of salinity and other parameters in SBE Data Processing If your MicroCAT includes an optional pressu
47. he configuration setting for your instrument by selecting your instrument type from the Configure menu list Instrument Type SBE 37 fi x COM Port Select the instrument type SBE 37 and the computer COM port for communication with the MicroCAT Click OK 2 The main screen looks like this Toolbar Command Data Echo Area Capture Status bar to file status grayed out if not capturing Upload parameter Captuting a Baud rate data bits stop bits and parity Menus Contains tasks and frequently executed instrument commands 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 Command Data Echo Area Echoes a command executed using a Menu or Toolbar button as well as the instrument s response Additionally a command can be manually typed in this area from the available commands for the instrument Note that the instrument must be awake for it to respond to a command use Connect on the Toolbar to wake up the instrument Status bar Provides status information To display or hide the Status bar select View Status bar in the View menu SBE ye comi ssop p ru Instrument EPROM version 13 Following are the Toolbar buttons appl
48. hms foot The limit to cable length is typically reached when the maximum 0 0016 communication current times the power common wire resistance is more than ae 1 volt because the difference in ground potential of the MicroCAT and ground 0 0064 controller prevents the MicroCAT from transmitting real time data 0 0081 V limit 1 volt IR limit 0 0107 Maximum cable length R jimi wire resistance per foot ee where I communication current required by MicroCAT 4 3 milliamps 0 0410 see Specifications in Section 2 Description of MicroCAT 0 0653 Example 1 For 20 gauge wire what is maximum distance to transmit power to MicroCAT when considering communication IR loss For 4 3 milliamp communications current R iimit V iim 1 volt 0 0043 Amps 232 ohms For 20 gauge wire resistance is 0 0107 ohms foot Maximum cable length 232 6 ohms 0 0107 ohms foot 21734 feet 6626 meters Example 2 Same as above but there are 4 MicroCATs powered from the same power supply For 35 milliamp communications current R imit V iim 1 volt 0 0043 Amps 4 MicroCATs 58 ohms For 20 gauge wire resistance is 0 0107 ohms foot Maximum cable length 58 ohms 0 0107 ohms foot 5433 feet 1656 meters to MicroCAT furthest from power source Supplying Enough Power to MicroCAT Another consideration in determining maximum cable length is supplying enough power at the power source so that sufficient voltage is available af
49. icable to the MicroCAT Section 3 Preparing MicroCAT for Deployment Toolbar Buttons Description Equivalent Command Connect Re establish communications with MicroCAT MicroCAT goes to sleep after 2 minutes without communication from computer have elapsed press any key Status Display instrument setup and logging status DS Coefficients Display calibration coefficients DC Capture Capture instrument responses on screen to file may be useful for diagnostics File has cap extension Press Capture again to turn off capture Capture status displays in Status bar Upload Upload data stored in memory in format Convert utility can use to allow for post processing by SBE Data Processing Uploaded data has asc extension Before using Upload 1 Configure upload and header parameters in Configure menu Send Stop to stop logging Send OutputExecutedTag N Executed and Executing tags will prevent Upload button from working properly Send OutputDensity N and OutputDepth N you will be able to calculate density and depth in post processing if desired their inclusion in uploaded data will prevent Upload button from working properly 2 DDb e use Upload button if you will be processing data with SBE Data Processing Convert Convert uploaded asc data file to cnv data file which can be processed by SBE Data Processing Diagnostics Stop Disconnect
50. impact in this area of the housing When reinstalling end caps do not use excess torque on the screws Sea Bird recommends tightening the screws to 15 inch lbs Alternatively tighten the screws finger tight and then turn each screw an additional 45 degrees e Aplastic housing is more susceptible to scratches than a titanium housing Do not use screwdrivers or other metal tools to pry off the end caps gt Of primary concern are scratches on O ring mating and sealing surfaces Take extra precaution to avoid a scraping contact with these surfaces when re seating the end cap Also take care to keep the O ring lubricated surfaces clean avoid trapping any sand or fine grit that can scratch the critical sealing surfaces If the O ring lubricant does accumulate any material or grit that can cause a leak or make a scratch it must be carefully cleaned and replaced with fresh clean lubricant Parker Super O Lube Shallow external scratches are cosmetic only and will not affect the performance of the MicroCAT However deep external scratches can become points of weakness for deep deployments or fracture from impact during very cold weather See Appendix II Electronics Disassembly Reassembly for detailed step by step procedures for removing the MicroCAT s end caps 45 Section 5 Routine Maintenance and Calibration Replacing Anti Foulant Devices SBE 37 SI SM IM The MicroCAT has an anti foulant device cup and cap on each en
51. in 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 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 C
52. ing 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 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 Appendix V Replacement Parts Appendix V Replacement Parts Part Number Part Application Description Quantity in MicroCAT 801542 AF24173 Anti Foulant Device Bis tributyltin oxide device inserted into anti foulant device cup 1 set of
53. ing 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 MicroCAT is flooded point it in a safe direction away from people and loosen the bulkhead connector very slowly at least 1 turn This opens 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 end cap 2 Reinsert the protective plugs in the anti foulant device cups 38 S ection 4 Deploying and Operating MicroCAT Uploading Data Note Data may be uploaded during deployment or after recovery If uploading after recovery connect the I O cable as described in Power and Communications Test in Section 3 Preparing MicroCAT for Deployment 1 2 Double click on SeaTerm exe The display shows the main screen In the Configure menu select SBE 37 Click on the Upload Settings tab The dialog box looks like this SBE 37 Configuration Options x Header Information Baud rate for uploading data from MicroCAT to computer is same as baud rate for general communication which was set on COM Settings tab Defines data upload type when using Upl
54. ion 6 Troubleshootin Section 6 Troubleshooting This section reviews common problems in operating the MicroCAT and provides the most common causes and solutions Problem 1 Unable to Communicate with MicroCAT Problem 2 No Data Recorded If OutputExecutedTag N the S gt prompt indicates that communications between the MicroCAT and computer have been established Before proceeding with troubleshooting attempt to establish communications again by clicking Connect on SEATERM s toolbar or pressing any key Cause Solution 1 The I O cable connection may be loose Check the cabling between the MicroCAT 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 the SBE 37 in the Configure menu and verify the settings in the Configuration Options dialog box The settings should match those on the instrument Configuration Sheet Cause Solution 3 The I O cable between the MicroCAT and computer may not be the correct one The I O cable supplied with the MicroCAT permits connection to standard 9 pin RS 232 interfaces Cause Solution 1 The memory may be full once the memory is full no further data is recorded Verify that the memory is not full using GetSD or DS free 0 or 1 if memory is full Sea Bird recommends that you upload all previous data before beginning another deployment Once the data is uploaded send InitLogging t
55. l Time Clock Conductivity amp temperature 6 bytes sample 3 bytes each Time 4 bytes sample Pressure optional 5 bytes sample Memory Space of samples 800 000 533 000 Recorded Parameters C T and time C T P and time 32 768 Hz TCXO accurate to 1 minute year External Input Power Housing and Depth Rating 0 5 Amps at 8 5 24 VDC See Power and Cable Length in Section 4 Deploying and Operating MicroCAT e Quiescent current 30 microamps e Communication current 4 3 milliamps e Acquisition current 15 milliamps e Minimum acquisition time continuous sampling 1 0 seconds sample without pressure 1 5 seconds sample with pressure Standard Titanium housing 7000 m 23 000 ft Optional Plastic ShallowCAT housing 250 m 820 ft Weight without pressure sensor or clamps Standard titanium housing In air 2 9 kg 6 5 Ibs In water 1 9 kg 4 3 Ibs Optional plastic ShallowCAT housing In air 2 2 kg 4 9 Ibs In water 1 2 kg 2 7 Ibs Resolution Typical RMS noise with fixed resistors on temperature and conductivity inputs is 0 000127 C and 0 000008 S m Section 2 Description of MicroCAT Dimensions and End Cap Connector Dimensions in millimeters inches 19 0 Had Hem T 67 3 87 6 108 0 2 65 3 45 4 25 a ae 4 05 Diameter 1 10 47 5 O 1 87 241 3 O O 9 50 6 63 O OJ omi 4pl a O O places 292 1 11 50
56. led in the field through a computer serial port and the bulkhead connector on the MicroCAT without the need to return the MicroCAT to Sea Bird The MicroCAT is supplied with a powerful Win 2000 XP software package SEASOFT Win32 which includes e SEATERM powerful terminal program for easy communication and data retrieval e SBE Data Processing program for calculation and plotting of conductivity temperature pressure optional and derived variables such as salinity and sound velocity Section 2 Description of MicroCAT Specifications Note Pressure ranges are expressed in meters of deployment depth capability CAUTION See Section 5 Routine Maintenance and Calibration for handling instructions for the plastic ShallowCAT housing Temperature al Optional C Conductivity S m Pressure 0 to full scale range Measurement 5 to 35 Oto 7 20 100 350 600 Range 0 to 70 mS cm 1000 2000 3500 7000 meters Initial 0 002 0 0003 0 1 of full scale Accuracy i 0 003 mS cm range Typical 0 0002 0 0003 0 003 mS cm 0 05 of full scale Stability per month per month range per year x 0 00001 0 002 of full scale Resolution 0 0001 0 0001 mS cm range 0 to 6 physical Sensor calibration over the Ambient pressure to 1 to 32 range 2 6 to 6 S m full scale range in Calibration Z plus zero conductivity 5 steps air Memory 8 Mbyte non volatile FLASH memory Data Storage Rea
57. lied and sample at rate specified by SampleInterval until power is removed MicroCAT goes to sleep between samples To stop sampling press any key and then type Stop and press Enter key Note If power is removed before Stop is sent sampling restarts when power is reapplied Wake up when power is applied and sample continuously at fastest possible rate until power is removed MicroCAT does not go to sleep between samples To stop sampling press any key and then type Stop and press Enter key Note If power is removed before Stop is sent sampling restarts when power is reapplied 32 Section 4 Deploying and Operating MicroCAT Polled Sampling Commands Note These commands are used to request 1 or more samples from the MicroCAT The MicroCAT has a buffer that stores The MicroCAT stores data for the most recent sample in its buffer Unless the most recent data samples Unlike noted otherwise the MicroCAT does not store the data in FLASH memory data in the FLASH memory data in the buffer is erased upon removal of TS Take sample store data in buffer output data power TSH Take sample store data in buffer do not output data TSS Take new sample store data in buffer and in FLASH memory and output data Note MicroCAT ignores this command if sampling data Start has been sent TSn x Take x samples and output data To interrupt this sampling press Esc key Note MicroCAT ignores this comman
58. ly displays if set to yes e Output local density with each sample OutputDensity Only displays if set to yes e Output depth with each sample OutputDepth Latitude for depth calculation Latitude Only displays if OutputDepth set to yes e Output time with each sample OutputTime Only displays if set to yes e Sampling mode SampleMode e Start sampling when power turned on Note AutoRun The 37 SI and 37 SIP use the same e Store data in memory StoreData firmware The internal pump is LNI applicable to the 37 SIP only eke ET Mp Stet Example user input in bold command used to modify parameter in parentheses DS SBE37SI RS232 3 0 SERIAL NO 6017 03 Apr 2008 00 48 50 DateTime vMain 7 41 vLith 3 16 samplenumber 0 fr 559240 can clear with InitLogging status not logging sample interval 15 seconds SampleInterval data format converted engineering OutputFormat output salinity OutputSal output sound velocity OutputSV output density OutputDensity output depth latitude 30 0 OutputDepth Latitude output time OutputTime sample mode interval sample SampleMode auto run no AutoRun store data yes StoreData pump installed no SetPumpInstalled N only valid setting for 37 SI 28 Section 4 Deploying and Operating MicroCAT Status Commands continued Notes DC e The DC and GetCC responses contain the
59. mples in memory 2 Upload data If x is more than actual number of samples in memory data for non existent samples will be bad random data Review uploaded data file carefully and delete any bad data 3 If desired increase x and upload data again to see if there is additional valid data in memory Memory Setup Commands StoreData x InitLogging SampleNumber x Y default Store data to FLASH memory when sampling x N Do not Initialize logging after all previous data has been uploaded initialize logging before starting to sample again to make entire memory available for recording InitLogging sets sample number SampleNumber to 0 sampling will start with sample 1 If not set to 0 data will be stored after last recorded sample Do not send InitLogging until all existing data has been uploaded x sample number for last sample in memory SampleNumber 0 is equivalent to InitLogging Do not send SampleNumber 0 until all existing data has been uploaded Output Format Setup Commands Notes e See Data Output Formats after the command descriptions for complete details e Binary data does not output on the screen Use Capture on the Toolbar to capture the data to a file before beginning sampling and then process the data with a utility e The MicroCAT always stores the sample time in memory regardless of the setting for OutputTime e The MicroCAT does not store salinity sound velocity densit
60. mwareLoader V 1 0 lt FirmwareLoader gt lt InternalSensors gt lt Sensor id Temperature gt lt type gt temperature 1 lt type gt lt SerialNumber gt 03706017 lt SerialNumber gt lt Sensor gt lt Sensor id Conductivity gt lt type gt conductivity 1 lt type gt lt SerialNumber gt 03706017 lt SerialNumber gt lt Sensor gt lt Sensor id Pressure gt SetPressurelInstalled lt type gt strain 0 lt type gt lt SerialNumber gt 2478619 lt SerialNumber gt lt Sensor gt lt InternalSensors gt lt HardwareData gt 27 Section 4 Deploying and Operating MicroCAT Status Commands continued DS Display operating status and setup parameters pote Equivalent to Status on Toolbar The DS response contains similar information as the combined responses from GetSD and GetCD List below includes where applicable but in a different format command used to modify parameter e Firmware version serial number date and time DateTime e External power voltage and back up internal lithium battery voltage e Number of samples and available sample space in memory e Logging status logging not started logging data not logging or unknown e Interval between samples for continuous sampling SampleInterval e Output format OutputFormat e Output salinity with each sample OutputSal Only displays if set to yes e Output sound velocity with each sample OutputS V On
61. nd summary 55 Commands autonomous sampling 32 baud rate 30 calibration coefficients 34 data upload 33 date and time 30 descriptions 22 general setup 30 hardware configuration 34 memory setup 31 operating 32 output format 31 polled sampling 33 pressure sensor 34 pump setup 34 serial line sync 32 status 23 Communication defaults 15 Conductivity cell 52 Conductivity cell cleaning 44 Connector 10 43 Continuous sampling 18 32 Convert asc to cnv 42 Corrosion precautions 43 D Data output format 31 35 Data processing 42 Data transmission rate 20 Data upload 33 Date and time 30 Deployment installation 37 preparing for 12 setup 37 Derive 42 Description 7 Dimensions 10 Index 63 E Electronics disassembly reassembly 53 End cap 10 43 F Format data output 35 Functional description 52 G Glossary 51 Guard removal 46 H hardware configuration 34 I Initializing memory 31 Interval sampling 18 32 M Maintenance 43 Memory 9 Memory setup 31 Modes See Sampling modes Mounting 37 O Output format 31 35 P Parker Super O Lube 51 Parts replacement 61 Plastic housing handling 45 Polled sampling 17 33 Power 9 21 Pressure sensor 52 maintenance 44 Pressure sensor setup 34 Pump setup 34 Q Quick start 5 R Recovery 38 physical handling 38 uploading data
62. nd transmit data MicroCAT uses the following equation to convert psia to decibars 3 Compare the MicroCAT output to the reading from a good barometer at the Pressure db pressure psia 14 7 0 689476 same elevation as the MicroCAT s pressure sensor Calculate offset barometer reading MicroCAT reading 4 Enter the calculated offset positive or negative in the MicroCAT s EEPROM using POffset in SEATERM Offset Correction Example Absolute pressure measured by a barometer is 1010 50 mbar Pressure displayed from MicroCAT is 2 5 dbars Convert barometer reading to dbars using the relationship mbar 0 01 dbar Barometer reading 1010 50 mbar 0 01 10 1050 dbar The MicroCAT s internal calculations output gage pressure using an assumed value of 14 7 psi for atmospheric pressure Convert MicroCAT reading from gage to absolute by adding 14 7 psia to the MicroCAT s output 2 5 dbars 14 7 psi 0 689476 dbar psia 2 5 10 13 7 635 dbars Offset 10 1050 7 635 2 47 dbars Enter offset in MicroCAT For demanding applications or where the sensor s air ambient pressure response has changed significantly calibration using a dead weight generator is recommended The pressure sensor port uses a 7 16 20 straight thread for 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 48 Sect
63. nnect the end cap to the housing 54 A endix Ill Command Summar Appendix Ill Command Summary Note See Command Descriptions in Section 4 Deploying and Operating MicroCAT for detailed information and examples CATEGORY COMMAND DESCRIPTION GetCD Get and display configuration data GetSD Get and display status data GetCC Get and display calibration coefficients Stat GetEC Get and display event counter data SES ResetEC Reset event counter GetHD Get and display hardware data DS Get and display status DC Get and display calibration coefficients DateTime Set real time clock month day year hour minute mmddyyyyhhmmss second BaudRate x x baud rate 600 1200 2400 4800 9600 19200 38400 57600 or 115200 Default 9600 General OutputExecutedTag x ee oe XML Executing and Executed tags Setup x reference pressure gauge in decibars ReferencePressurezx used for conductivity salinity and sound velocity computation when MicroCAT does not have pressure sensor QS Quit session and place MicroCAT in quiescent sleep state StoreData x ae SE to FLASH memory when sampling r InitLogging Initialize logging to make entire memory available etup for recording x sample number for last sample in memory SampleNumber x SampleNumber 0 equivalent 16 InitLozeing x 0 output raw decimal data x 1 output converted decimal data OutputFormat x x 2 A
64. o reset the memory After the memory is reset GetSD or DS will show samples 0 Problem 3 Unreasonable T C or P Data 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 Data with unreasonable i e out of the expected range values for temperature conductivity or pressure may be caused by incorrect calibration coefficients in the MicroCAT Send GetCC to verify the calibration coefficients in the MicroCAT match the instrument Calibration Certificates Note that calibration coefficients do not affect the raw data stored in MicroCAT memory If you have not yet overwritten the memory with new data you can correct the coefficients and then upload the data again 49 Section 6 Troubleshootin Problem 4 Salinity Spikes Salinity is a function of conductivity temperature and pressure and must be calculated from C T and P measurements made on the same parcel of water Salinity is calculated and output by the 37 SI if OutputSal Y Background information Salinity spikes in profiling i e moving fast sampling instruments typically result from misalignment of the temperature and conductivity measurements in conditions with sharp gradients This misalignment is often caused by differences in response times for the temperature and conductivity sensors and can be corrected for in post processing if the T and C response times
65. oad button on Toolbar or Upload Data in Data menu e All as single file All data uploaded into one file e By scan number range Upload data one C By scan number range From a single cast C By cast number range SEATERM prompts for beginning and ending scan sample numbers and uploads all data within range into one file Note Set up Upload Settings Header Information and or Header Form Steps 2 through 4 e The first time you upload data and e If you want to change upload or header parameters 3 Defines header information included with uploaded data e Prompt for header information Each time data is uploaded user is prompted to fill out user defined header form Include default header form in upload file User defined default header form included in upload file User is not prompted to add any information when data is uploaded Do not include default header form in upload file Header information not included in upload file Cancel Default Help x Make the selection for Upload Settings Click on the Header Information tab The dialog box looks like this SBE 37 Configuration Options COM Settings x ge Upload Settings i Header Information Prompt for header information C Include default header form in the upload file C Don t include default header form in the upload file Cancel Select the desire
66. of operation commands e Baud rate cable length power and data transmission rate limitations e Timeout description e Command descriptions e Data output formats Note e Deployment Separate software manuals and e Recovery physical handling and uploading data Help files contain detailed e Processing data information on installation setup and use of Sea Bird s software Sampling Modes Note The MicroCAT has several basic sampling modes for obtaining data After waking the MicroCAT you may need to send the Stop command type Stop and press the Enter key i f to interrupt sampling depending on e Serijal Line Sync Sampling how the instrument was set up the Data is transmitted real time For Autonomous sampling or Serial Line Sync last time it was used You may need sampling data can also be saved to the MicroCAT s FLASH memory for to send Stop several times to get the later upload by setting StoreData Y Commands can be used in various MicroCAT to respond combinations to provide a high degree of operating flexibility e Polled Sampling e Autonomous Sampling Interval or Continuous Descriptions and examples of the modes follow Note that the MicroCAT s response to each command is not shown in the examples Review the operation of the basic sampling modes and the commands described in Command Descriptions before setting up your system Polled Sampling On command the MicroCAT takes one sample of data and sends th
67. oggingRestartNoAlarm no sample taken for 8 hours while logging restart logging Example user input in bold command used to modify coefficient in parentheses getec lt EventCounters DeviceType SBE37SI RS232 SerialNumber 03706017 gt lt EventSummary numEvents 0 gt can clear with ResetEC lt EventCounters gt ResetEC Delete all events in event counter number of events displays in GetSD response and event details display in GetEC response 26 Section 4 Deploying and Operating MicroCAT Status Commands continued GetHD Get and display hardware data which is fixed data describing MicroCAT e Device type Serial number e Manufacturer e Firmware version e Firmware date e PCB assembly number e Manufacture date e Sensor types and serial numbers Example user input in bold command used to modify parameter in parentheses gethd lt HardwareData DeviceType SBE37SI RS232 SerialNumber 03706017 gt lt Manufacturer gt Sea Bird Electronics Inc lt Manufacturer gt lt FirmwareVersion gt 3 0 lt FirmwareVersion gt lt FirmwareDate gt 2 April 2008 08 30 lt FirmwareDate gt lt PCBAssembly gt 41609A lt PCBAssembly gt SetPCBAssembly1 lt PCBAssembly gt 41610A lt PCBAssembly gt SetPCBAssembly2 lt PCBAssembly gt 41611B lt PCBAssembly gt SetPCBAssembly3 lt MfgDate gt 28 Feb 2008 lt MfgDate gt SetMfgDate lt FirmwareLoader gt SBE 37 Fir
68. oles in the MicroCAT B Ensure the mounting scheme does not transfer mooring through tension to the sensor end cap which could pull off the end cap New MicroCATs are shipped with AF24173 Anti Foulant Devices and protective plugs pre installed A Remove the protective plugs if installed from the anti foulant device cups The protective plugs must be removed prior to deployment or pressurization If the plugs are left in place during deployment the sensor will not register conductivity If left in place during pressurization the cell may be destroyed B Verify that the anti foulant device cups contain AF24173 Anti Foulant Devices see Section 5 Routine Maintenance and Calibration Install the I O cable on the MicroCAT A Lightly lubricate the inside of the cable connector with silicone grease DC 4 or equivalent B Standard Connector shown in photos Install the cable connector aligning the raised bump on the side of the connector with the large pin pin 1 ground on the MicroCAT Remove any trapped air by burping or gently squeezing the connector near the top and moving your fingers toward the end cap OR MCBH Connector Install the cable connector aligning the pins C Place the locking sleeve over the connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Attach the mounting equipment to the mooring cable or support Verify that the hardwa
69. ollowing e Send QS to put the MicroCAT in quiescent sleep state until ready to redeploy e Use Start to begin sampling immediately 2 3 4 C Use density and other parameters See the software manual on CD ROM or Help files for complete details Derive requires you to select an instrument configuration con file before it processes data A MicroCAT does not have a con file but you can use a con file from any other Sea Bird instrument the contents of the con file will not affect the results If you do not have a con file for another Sea Bird instrument create one by clicking SBE Data Processing s Configure menu and selecting any instrument In the Configuration dialog box click Save As and save the con file with the desired name and location for ease of use save the file with the same name and to the same directory as your cnv file for example save the con file for test cnv as test con In SBE Data Processing s Run menu select Derive In the Derive dialog box click on the File Setup tab Select the instrument configuration con file from Step 10B1 Select the cnv file you created in Step 10A Click on the Data Setup tab and click Select Derived Variables Select the desired output variables and click OK Then click Start Process Derive will output a cnv file that includes all the data in the input cnv file as well as the desired derived variables SBE Data Processing s SeaPlot module to plot the da
70. only if optional pressure sensor installed vvvv pressure sensor pressure temperature compensation A D counts sent only if optional pressure sensor installed dd mm yyyy day month year sent only if OutputTime Y hh mm ss hour minute second sent only if OutputTime Y Note that depth density salinity and sound velocity are not sent regardless of the setting for those parameters All data is separated with a comma and a space Example Sample data output when pressure sensor is installed OutputFormat 0 OutputDepth Y OutputSal Y OutputSV Y OutputDensity Y and OutputTime Y 524276 2886 656 785053 2706 02 Apr 2008 09 01 34 temperature conductivity pressure sensor pressure pressure sensor temperature compensation date time e OutputFormat 1 default converted decimal data ttt tttt cc ccccc pppp ppp dddd ddd sss ssss vvvv vvv rrr rrrr dd mmm yyyy hh mm ss where ttt tttt temperature C ITS 90 cc ccccc conductivity S m Pppp ppp pressure decibars sent only if optional pressure sensor installed dddd ddd depth meters sent only if OutputDepth Y Sss ssss salinity psu sent only if OutputSal Y vvvv vvv sound velocity meters second sent only if OutputSV Y rrr rrrr local density kg m sent only if OutputDensity Y dd mm yyyy day month year sent only if OutputTime Y hh mm ss hour minute second sent only if OutputTime Y Leading zeros are supp
71. ons dialog box your Windows directory e COMM Port COM 1 through COM 10 as applicable SeaTerm ini contains the last saved e Baud Rate 9600 documented on Configuration Sheet of manual settings for each instrument When e Data Bits 8 you open SEATERM and select the Parity N desired instrument SBE 37 39 ATY INODE etc in the Configure menu the e Mode RS 232 Full Duplex Configuration Options dialog box Click OK to save the settings shows the last saved settings for that instrument 4 In the Communications menu select Options Cycle baud when connecting 5 Click Connect on the Toolbar or press any key SEATERM tries to connect to the MicroCAT at the baud set in Step 3 If it cannot it cycles through all other possible baud rates to try to connect When it connects the display looks like this s gt if OutputExecutedTag N Note Or You may need to send the Stop command type Stop and press the lt Executed gt if OutputExecutedTag Y Enter key to interrupt sampling This shows that correct communications between the computer and the depending on how the instrument was MicroCAT has been established ine cs If the system does not respond as shown times to get the MicroCAT to respond e Click Connect again or press any key e Verify the correct instrument was selected in the Configure menu and the settings were entered correctly in the Configuration Options dialog box Note that the baud r
72. pling scessccscsie a E ates ions Siveesets N 17 Autonomous Sampling 00 0 cc ceeeecseeescssesecsseceeesecseeseceaeeeesaecaeesecneeeenaeeees 18 Serial Line Sync Sampling semeai ea ear S KI 19 Baud Rate Cable Length Power and Data Transmission Rate 5 20 Timeout Desciipt on isores iE E i sasha E EE E E E RE a S 22 Command Pescripti n Srei TE a AE EE ENEE S 22 Data Output Formats s 0 cssessecsisev paisssseassepseetaoasie EEES a S EEEE ARS 35 Setup for D pl y Ment ereitera h ae EE e E ERR E EE 37 Deployment snini ie a Ea E E EEEE EE A EEE ES 37 RecoVery arnee E E E E EEEE A E S 38 Physical Handlingens ennas ea aE E E E Ea 38 Uploading Data e es erni e E E ER EE E ones 39 Section 5 Routine Maintenance and Calibration esesesesesesesesesesesesesesesees 43 Corrosion Precautions cesccesecsceeseeeseeeseeeeceeeesecesecnsecesecsaecaeeeeeeaeenaeeneeaes 43 Connector Mating and Maintenance 0 cs eececsesecseeeeceseeeceseceeesecneeseenaeetere 43 Conductivity Cell Maintenance 000 eescesesecseeeeeseceeesccnersecsaeeeeaecaeeseeneeaes 44 Pressure Sensor optional Maintenance cceesceseceeseeeeneeceeeceeeecesneeeneeees 44 Handling Instructions for Plastic ShallowCAT Option n se 45 Replacing Anti Foulant Devices SBE 37 SI SM IM 46 Sensor Calibration ce cscs e e r r sates stuacsessasei asses a E RS 47 Section 6 Troubleshooting cscccscccsscssscscsssssscssscscssscsssscsssessse
73. power and communications Software Installation Recommended minimum system requirements for running SEASOFT Win32 Windows 2000 or later 500 MHz processor 256 MB RAM and 90 MB free disk space for installation If not already installed install SEATERM and other Sea Bird software Note programs on your computer using the supplied software CD It is possible to use the MicroCAT without SEATERM by sending 1 With the CD in your CD drive double click on Seasoft Win32 exe direct commands from a dumb terminal or terminal emulator such as Windows HyperTerminal 2 Follow the dialog box directions to install the software The default location for the software is c Program Files Sea Bird Within that folder is a sub directory for each program The installation program allows you to install the desired components Install all the components or just install SEATERM terminal program and SBE Data Processing Power and Communications Test The power and communications test will verify that the system works prior to deployment Test Setup 1 Remove the dummy plug A By hand unscrew the locking sleeve from the MicroCAT s bulkhead Locking sleeve connector If you must use a wrench or pliers be careful not to loosen the bulkhead connector instead of the locking sleeve B Remove the dummy plug from the MicroCAT s I O bulkhead connector by pulling the plug firmly away from the connector Dummy plug
74. re and external fittings are secure Connect the MicroCAT to the computer and power see Power and Communications Test in Section 3 Preparing MicroCAT for Deployment If you have not already done so send Start to start sampling If using SEATERM to view real time data click Capture on the Toolbar before you begin sampling Enter the desired capture file name in the dialog box and click Save Data displayed in SEATERM will be saved to the designated cap file The cap file cannot be processed by Sea Bird software as it does not have the required headers and format 37 Section 4 Deploying and Operating MicroCAT Recovery Physical Handling WARNING f i 1 Rinse the conductivity cell with fresh water See Section 5 Routine If the MicroCAT stops working while Maintenance and Calibration for cell cleaning and storage 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 hous
75. re sensor entering a deployment pressure has no effect on the data Convert does not overwrite the actual pressure data in the file with the entered deployment 4 SEATERM contains a utility to convert the asc file to a cnv file can be used by SBE Data Processing To convert the data In SEATERM click Convert on the Toolbar The Convert dialog box appears In the dialog box enter the input asc file name and the desired output cnv file name file names must include the path If desired click Start new year at Julian time O to reset the Julian Day to 0 on January 1 Date and time if present in the uploaded file is converted to Julian Day with five significant digits As the default Convert does not reset the Julian Day to 0 when rolling over from December 31 to January 1 If desired click Insert deployment pressure A field for the deployment pressure appears in the dialog box enter the pressure in decibars at which the MicroCAT was deployed Convert adds a pressure column to the data the entered deployment pressure is inserted in every row of the pressure column in the output cnv file B Use SBE Data Processing s Derive module to compute salinity pressure Notes To prepare for re deployment 1 1 After all data has been uploaded send InitLogging If this is not sent new data will be stored after the last recorded sample preventing use of the entire memory capacity 2 Do one of the f
76. ressed except for one zero to the left of the decimal point All data is separated with a comma and a space Example Sample data output when pressure sensor is installed OutputFormat 1 OutputDepth Y OutputSal Y OutputSV Y OutputDensity Y OutputTime Y 8 5796 0 15269 531 316 527 021 1 1348 1451 478 3 2486 02 Apr 2008 09 01 44 temperature conductivity pressure depth salinity sound velocity local density date time 35 Section 4 Deploying and Operating MicroCAT e OutputFormat 2 converted decimal data in XML lt xml version 1 0 gt Note lt datapacket gt For ease in reading the data lt hdr gt structure is shown with each XML tag lt mfg gt Sea Bird lt mfg gt on a separate line However there lt model gt 37si lt model gt are no carriage returns or line feeds shsnninhiniz sh between tags see example below Shes lt data gt lt tl gt ttt tttt lt tl gt lt cl gt cc ccccc lt cl gt lt p1 gt pppp ppp lt p1 gt lt dm gt dddd ddd lt dm gt lt sal gt sss ssss lt sal gt lt SV gt VVVV VVV lt sv gt lt sr gt rrr rrrr lt sr gt lt dt gt yyyy mm ddThh mm ss lt dt gt lt data gt lt datapacket gt where ttt tttt temperature C ITS 90 cc cccce conductivity S m Pppp ppp pressure decibars sent only if optional pressure sensor installed dddd ddd depth meters sent only if OutputDepth Y sss ssss salinity psu sent onl
77. same information but in Display calibration coefficients which are initially factory set and should agree with different formats Calibration Certificates shipped with e Dates shown are when calibrations MicroCAT were performed Equivalent to Coefficients on Toolbar e f the MicroCAT does not include an optional pressure sensor the user input reference pressure ReferencePressure appears at the end of the conductivity calibration coefficients Example MicroCAT with a pressure sensor user input in bold DC SBE37SI RS232 V 3 0 6017 temperature 04 apr 08 TCalDate TAO 6 947802e 05 TA0 TAL 2 615233e 04 TA1 TA2 1 265233 e 06 TA2 TA3 1 310479e 07 TA3 conductivity 04 apr 08 CCalDate G 1 036689e 00 CG H 1 444342e 01 CH I 3 112137e 04 CI J 3 005941e 05 CJ CPCOR 9 570001le 08 CPCor CTCOR 3 250000e 06 CTCor WBOTC 1 968100e 05 CWBOTC pressure S N 2478619 range 2901 psia 03 apr 08 PRange psi PCalDate PAO 0 000000e 00 PA0 PAl 0 000000e 00 PA1 PAZ 0 000000e 00 PA2 PTCAO 0 000000e 00 PTCA0 PTCA1 0 000000e 00 PTCA1 PTCA2 0 000000e 00 PTCA2 PTCBO 0 000000e 00 PTCB0 PTCB1 0 000000e 00 PTCB1 PTCB2 0 000000e 00 PTCB2 PTEMPAO 0 000000e 00 PTempA0 PTEMPA1 0 000000e 00 PTempA 1 PTEMPA2 0 000000e 00 PTempA2 POFFSET 0 000000e 00 POffset decibars 29 Section 4 Deploying
78. sessseesneees 49 Problem 1 Unable to Communicate with MicroCAT ceccesceeseeereeteeeees 49 Problem 2 No Data Recorded 200 0 ianen asena i estaire iei ea 49 Problem 3 Unreasonable T C or P Data ccccccesccccecessesseeeeeeceesessraeees 49 Problemi 4 Salinity Spikes sireturi aaar e 50 GIOSSALY E OEA E 51 Table of Contents Appendix I Functional Description sccsscessssscssscssscssscscssecssecsssesees 52 DETISOTS 5545 sas ceevershus cocbenc gee ttiat E esate ioeseaonteaieoee ts 52 Sensor Interfaces ses sich cots eacasisdiatewveraess E om GesersGaieen de R 52 Reale Lime ClocK etaa don seen Sadat E A A a esis 52 Appendix II Electronics Disassembly Reassembly sssssssscssesseeseeees 53 Appendix IIT Command Summary ccsscssssscsssesscsssesscsssscsessseeseceseees 55 Appendix IV AF24173 Anti Foulant Device scscssessssscesscessssseseeees 57 Appendix V Replacement Parts ccssscssssscsssssssecssenssesssscesssssesseses 61 WN OX AOE A E E EO EI TOA 63 Section 1 Introduction Section 1 Introduction This section includes contact information Quick Start procedure and photos of a standard MicroCAT shipment About this Manual This manual is to be used with the SBE 37 SI MicroCAT Conductivity and Temperature Recorder pressure optional with RS 232 interface It is organized to guide the user from installation through operation and data collection We
79. sssssersessesessessrsessessssessessssessessssessssesserees 5 About this Manuali eism a tovecs Aewtas ob bata R E ER 5 How to Contact Sea Bird isimse iei n a a se 5 Quick Starter eors eee oc a AE MA asic a eens A es Re eee TEES 5 Unpacking Micr CA T ee innar a aar a REA 6 Section 2 Description of MicroCAT sesessessescosseseosossessossesoessesessoesessossesossee 7 System Description se a E E ee E EER A 7 Specifications e rh ieee e a eaa aere ENER ce ENEE EARE EEE EE thee TA EAE 9 Dimensions and End Cap Connector cceecsseesesseceeeeeceeeeeceaeeeesaecaeeeeeneeees 10 Sample THINE nnee io dees E A A EE aTa oe ans eee 11 Autonomous Sampling ssesseeseseeseesesestsesreerererrsesteeerstesesesrerestsessesesreerees 11 Polled Sampling or Serial Line SYN cee sesceeceeeeeceeeeeeeeeneeeeeneeeees 11 Section 3 Preparing MicroCAT for Deployment scscssscssseeeeeeeees 12 Software Anstall ath onic A sass steasszasteacsteecaactanioescasvessscesnsantsavesssesvereecss 12 Power and Communications Test c cceccessceesceesceeeceeeceeeesecesceseenaeenseenaeenes 12 Test SetuP seiscessssssspseess sche sceud cdi oer raoa aE EErEE E Ep s EErEE EAE ES EEEIEE 12 GSE E EE E E ce Batata seeses Saaga oate clans cootevawdeavlen ta henea cen euisaeenbents 13 Section 4 Deploying and Operating MicroCA T cscsssssscssscssseseeeeeeee 17 Sampling Modes eierne cubtesdeoreis ieee a coils leek Wuuswpesm eh tevenseraes 17 Polled Sam
80. t is also available Communication with the MicroCAT is over an internal 3 wire RS 232C link Over 50 different commands can be sent to the MicroCAT to provide status display data acquisition setup data retrieval and diagnostic tests User selectable operating modes include e Autonomous sampling There are two types of Autonomous sampling Interval sampling At pre programmed intervals 6 21 600 seconds the MicroCAT samples stores data in its FLASH memory and transmits the data to the computer The MicroCAT goes to sleep between samples Continuous sampling The MicroCAT continuously samples stores data in its FLASH memory and sends the data to the computer The MicroCAT does not go to sleep between samples e Polled sampling On command the MicroCAT takes one sample and transmits the data Polled sampling is useful for integrating the MicroCAT with satellite radio or wire telemetry equipment e Serial line sync A pulse on the serial line causes a MicroCAT to wake up sample store data in its FLASH memory transmit the data and go to sleep automatically This mode provides easy integration with Acoustic Doppler Current Profilers ADCPs or current meters which can synchronize MicroCAT sampling with their own Calibration coefficients stored in EEPROM allow the MicroCAT to transmit data in engineering units The MicroCAT retains the temperature and conductivity sensors used in the SEACAT and SEACAT plus family
81. t section of the application note is not applicable to the MicroCAT which is intended for use as a moored instrument A conductivity cell filling and storage kit is available from Sea Bird The kit PN 50087 1 includes a syringe and tubing assembly and two anti foulant device caps with hose barbs The tubing cannot attach to an anti foulant device cap that is not barbed Cleaning and storage instructions require use of the syringe and tubing assembly at the intake end of the cell requiring one barbed cap and looping Tygon tubing from end to end of the cell requiring two barbed caps Remove the installed anti foulant device cap s and replace them with the anti foulant device cap s with hose barbs for cleaning and storage only Remember to reinstall the original anti foulant device cap s before deployment Deploying a MicroCAT with barbed anti foulant device cap s in place of the installed caps is likely to produce undesirable results in your data See Replacing Anti Foulant Devices for safety precautions when handling the AF24173 Anti Foulant Devices Pressure Sensor optional Maintenance Pressure sensor port plug CAUTION Do not put a brush or any object in the pressure port Doing so may damage or break the pressure sensor The pressure port plug has a small vent hole to allow hydrostatic pressure to be transmitted to the pressure sensor inside the instrument while providing protection for the pressure sensor ke
82. t likely to occur if sampling from memory continuously or with a small i Samplelnterval The table below summarizes the interaction of the operating commands SampleMode AutoRun Effect 1 N Wake up when power is applied and Connect on Toolbar is clicked or any key is pressed while asleep and wait for command When Start is sent take 1 sample and go to sleep Take another sample each time a pulse is received press any key or power is cycled Wake up when power is applied and Connect on Toolbar is clicked or any key is pressed while asleep and wait for command When Start is sent sample at intervals defined by SampleInterval MicroCAT goes to sleep between samples To stop sampling press any key and then type Stop and press Enter key Note If power is removed before Stop is sent sampling restarts when power is reapplied Wake up when power is applied and Connect on Toolbar is clicked or any key is pressed while asleep and wait for command When Start is sent sample continuously at fastest possible rate To stop sampling press any key and then type Stop and press Enter key Note If power is removed before Stop is sent sampling restarts when power is reapplied Wake up when power is applied take 1 sample and go to sleep Take another sample each time a pulse is received press any key or power is cycled To wake up press any key and then type Stop and press Enter key Wake up when power is app
83. ta 42 Section 5 Routine Maintenance and Calibration Section 5 Routine Maintenance and Calibration This section reviews corrosion precautions connector mating and maintenance conductivity cell storage and cleaning pressure sensor maintenance plastic housing handling instructions replacement of AF24173 Anti Foulant Devices and sensor calibration The accuracy of the MicroCAT is sustained by the care and calibration of the sensors and by establishing proper handling practices Corrosion Precautions Rinse the MicroCAT with fresh water after use and prior to storage All exposed metal is titanium other materials are plastic No corrosion precautions are required but direct electrical connection of the MicroCAT housing to mooring or other dissimilar metal hardware should be avoided Connector Mating and Maintenance Note See Application Note 57 Connector Care and Cable Installation CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors Clean and inspect the connectors cable and dummy plug before every deployment and as part of your yearly equipment maintenance Inspect connectors that are unmated for signs of corrosion product around the pins and for cuts nicks or other flaws that may compromise the seal When remating 1 Lightly lubricate the inside of the dummy plug cable connector with silicone grease DC 4 or equivalent 2 Standard Connector
84. technique is provided below for making small corrections to the pressure sensor calibration using the offset POffset calibration coefficient term by comparing MicroCAT pressure output to readings from a barometer Allow the MicroCAT to equilibrate 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 Note temperature Sea Bird instruments are constructed to minimize this by thermally The MicroCAT s pressure sensor is an decoupling the sensor from the body of the instrument However there is still absolute sensor so its raw output some residual effect allowing the MicroCAT to equilibrate before starting will OutputFormat 0 includes the effect provide the most accurate calibration correction of atmospheric pressure 14 7 psi As shown on the Calibration Sheet Sea Bird s calibration and resulting calibration coefficients is in terms of 1 Place the MicroCAT in the orientation it will have when deployed psia However when outputting 2 InSEATERM pressure in engineering units the A Set the pressure offset to 0 0 POffset 0 MicroCAT outputs pressure relative to B Set the output format to converted decimal OutputFormat 1 so the the ocean surface i e at the surface pressure output will be in decibars the output pressure is 0 decibars The C Send TSn 100 to take 100 samples a
85. ter IR loss in the cable from the 0 5 Amp turn on transient two way resistance to power the MicroCAT Provide at least 8 5 volts after IR loss V IR gt 8 5 volts where I MicroCAT turn on transient 0 5 Amps see Specifications Example 1 For 20 gauge wire what is maximum distance to transmit power to MicroCAT if using 12 volt power source V IR gt 8 5 volts 12 volts 0 50 Amps 0 0107 ohms foot 2 cable length gt 8 5 volts 3 5 volts gt 0 50 Amps 0 0107 ohms foot 2 cable length Cable length lt 327 ft 99 meters Note that 99 meters lt lt 6626 meters maximum distance when considering communication IR loss so supplying enough power is controlling factor for this example Using a higher voltage power supply or a different wire gauge would increase allowable cable length Example 2 Same as above but there are 4 MicroCATs powered from same power supply V IR gt 8 5 volts 12 volts 0 50 Amps 4 MicroCATs 0 0107 ohms foot 2 cable length gt 8 5 volts 3 5 volts gt 0 50 Amps 4 MicroCATs 0 0107 ohms foot 2 cable length Cable length lt 81 ft 25 meters to MicroCAT furthest from power source 21 Section 4 Deploying and Operating MicroCAT Timeout Description The MicroCAT has a timeout algorithm If the MicroCAT does not receive a command or sample data for 2 minutes it powers down its communication circuits This places the MicroCAT in quiescent sleep state
86. ters can be user calibration coefficients To display input modified List below includes where applicable command used to modify parameter e Device type Serial number e Optional pressure sensor installed e Pump installed SetPumpInstalled N Note Always no for 37 SI The 37 S and 37 S P use the same e Minimum conductivity frequency for firmware The internal pump is applicable to the 37 SIP only pump turn on not applicable for 37 SI e Sampling mode SampleMode e Output data format OutputFormat e Output salinity with each sample OutputSal e Output sound velocity with each sample OutputS V e Output depth with each sample OutputDepth e Latitude for depth calculation Latitude e Output local density with each sample OutputDensity e Output time with each sample OutputTime e Interval between samples for continuous sampling SampleInterval e Start sampling when power turned on AutoRun e Store data in memory StoreData calibration coefficients use the GetCC command Example user input in bold GETCD lt ConfigurationData DeviceType SBE37SI RS232 SerialNumber 037006017 gt lt PressurelInstalled gt yes lt PressureInstalled gt inclusion of optional pressure sensor set at factory lt PumpInstalled gt no lt PumpInstalled gt SetPumpInstalled N only valid setting for 37 SI lt MinCondFreq gt 3000 0 lt MinCondFreq gt only
87. utput Formats These are start time and starting sample number for last set of logged data can be useful in determining what data to review Example Upload samples 1 to 1000 to a file user input in bold Click Capture on Toolbar and enter desired filename in dialog box GETSAMPLES 1 1000 or DD1 1000 33 Section 4 Deploying and Operating MicroCAT Note F floating point number S string with no spaces Calibration Coefficients Commands Calibration coefficients are initially factory set and should agree with Calibration Certificates shipped with the MicroCAT Temperature 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 Conductivity CCalDate S S Conductivity calibration date CG F F Conductivity G CH F F Conductivity H CI F F Conductivity I CJ F F Conductivity J WBOTC F F Conductivity wbotc CTCor F F Conductivity ctcor CPCor F F Conductivity cpcor Pressure PCalDate S S Pressure calibration date PAO F F Pressure AO PA1 F F Pressure Al PA2 F F Pressure A2 PTCAO0 F F Pressure ptca0 PTCA1 F F Pressure ptcal PTCA2 F F Pressure ptca2 PTCBO F F Pressure ptcb0 PTCB1 F F Pressure ptcb1 PTCB2 F F Pressure ptcb2 POffset F F Pressure offset decibars Hardware Configuration Commands Note The 37 SI and 37 SIP use the same firmware The internal pump is applicable to the 37 SIP only
88. wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the housing endix Il Electronics Disassembly Reassembl 1 Reinstall the electronics A B Align the brass sleeve with the hole for the Phillips head screw and push the PCB assembly into the 10 position edge connector Drop the Phillips head screw into the hole and tighten gently 2 Reinstall the housing on the sensor end cap A Remove any water from the sensor end cap s 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 as necessary Apply a light coat of O ring lubricant Parker Super O Lube to the O rings and mating surfaces Carefully fit the housing onto the sensor end cap until the O rings have fully seated Reinstall the three flat Phillips head screws that connect the housing to the sensor end cap and the guard 3 Reinstall the I O connector end cap on the housing A Remove any water from the I O connector end cap s 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 as necessary Apply a light coat of O ring lubricant Parker Super O Lube to the O rings and mating surfaces Carefully fit the end cap into the housing until the O rings have fully seated Reinstall the two flat Phillips head screws that co
89. x Y Display XML Executing and Executed tags Executed tag displays at end of each command response Executing tag displays one or more times if MicroCAT response to command requires additional time x N Do not Example Set MicroCAT to output Executed and Executing tags user input in bold outputexecutedtag y lt lt Note lt Executed gt getcd GetCD response Executed gt Executed gt tag at end of command response takes place of S gt prompt ReferencePressure x Qs 30 x reference pressure gauge in decibars MicroCAT without installed pressure sensor uses this reference pressure in conductivity and optional salinity sound velocity depth and density calculations Entry ignored if MicroCAT includes pressure sensor Quit session and place MicroCAT in quiescent sleep state Data logging and memory retention are not affected Section 4 Deploying and Operating MicroCAT Note If the FLASH memory is filled to capacity sampling continues but excess data is not saved in memory i e the MicroCAT does not overwrite the data in memory Note Do not send InitLogging or SampleNumber 0 until all data has been uploaded These commands do not delete the data they just reset the data pointer If you accidentally send one of these commands before uploading recover the data as follows 1 Set SampleNumbers x where x is your estimate of number of sa
90. y and or depth in memory if the respective parameters are enabled for output It calculates and outputs the values real time or as data is uploaded therefore outputting these parameters has no effect on the number of samples that can be stored in memory These parameters can also be calculated in SBE Data Processing from data uploaded from the MicroCAT s memory OutputFormat x OutputTime x OutputSal x OutputS V x OutputDensity x OutputDepth x Latitude x 31 x 0 output raw decimal data x 1 default output converted decimal data x 2 output converted decimal data in XML x 3 output converted binary data x Y output date and time Only applies if OutputFormat 0 1 or 2 x N do not x Y calculate and output salinity psu Only applies if OutputFormat 1 or 2 x N do not x Y calculate and output sound velocity m sec using Chen and Millero formula UNESCO Technical Papers in Marine Science 44 Only applies if OutputFormat 1 or 2 x N do not x Y calculate and output local density kg m based on salinity temperature and pressure Only applies if OutputFormat 1 or 2 Note Local density Sigma s t p 1000 x N do not x Y calculate and output depth meters using Latitude in calculation Only applies if OutputFormat 1 or 2 x N do not x latitude degrees to use in depth calculation Only applicable if OutputDepth Y Section 4 Deploying and Operating
91. y if OutputSal Y vvvv vvv sound velocity meters second sent only if OutputSV Y rrr rrrr local density kg m sent only if OutputDensity Y yyyy mm ddThh mm ss year month day hour minute second sent only if OutputTime Y Leading zeros are suppressed except for one zero to the left of the decimal point Example Sample data output when pressure sensor is installed OutputFormat 2 OutputDepth Y OutputSal Y OutputSV Y OutputDensity Y and OutputTime Y lt xml version 1 0 gt lt datapacket gt lt hdr gt lt mfg gt Sea Bird lt mfg gt lt model gt 37SI lt model gt lt sn gt 03709999 lt sn gt lt hdr gt lt data gt lt t1l gt 8 5796 lt t1 gt lt cl gt 0 15269 lt cl gt lt p1 gt 531 316 lt p1 gt lt dm gt 527 021 lt dm gt lt sal gt 1 1348 lt sal gt lt sv gt 1451 478 lt sv gt lt sr gt 3 2486 lt sr gt lt dt gt 2008 04 02T09 01 44 lt dt gt lt data gt lt datapacket gt CRLF temperature conductivity pressure depth salinity sound velocity local density date and time e OutputFormat 3 converted data in binary ttttccccpppph where tttt temperature 100000 ccecce conductivity 100000 Pppp pressure 100000 sent only if optional pressure sensor installed h 1 byte checksum sum of all bytes including checksum modulo 256 is 0 tttt cccc and pppp are each a 4 byte long integer stored little endian 36 Section 4 Deploying and Operating MicroCAT Setup for Deployment

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