Home

SBE 37-SM RS

1. 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 Cancel Default Help x Make the selection for Upload Settings 3 Click on the Header Information tab The dialog box looks like this SBE 37 Configuration Options x COM Settings Upload Settings H Defines header information included with uploaded data e Prompt for header information Each Header Information 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 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 desired header information option Click OK to save the settings Default Help OK 38 Section 4 Deploying and Operating MicroCAT 4 Inthe Configure menu select Header Form to customize the header The dialog box looks like this default prompts are shown SS 1 x Promptioriine 1 Si SS Prompt far line 2 Cruise Promptiorline3 Staion Pro
2. Install the dummy plug or cable connector aligning the raised bump on the side of the plug connector with the large pin pin 1 ground on the MicroCAT Dummy plug or I O cable connector Remove any trapped air by burping or gently squeezing the as applicable plug connector near the top and moving your fingers toward the endcap OR MCBH Connector Install the plug cable connector aligning the pins C Place the locking sleeve over the plug connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Locking sleeve 3 Attach the mounting clamp and guide to the mooring cable Standard mounting clamp and guide loosen hardware to separate clamp guide halves and mount on mooring cable 4 Verify that the hardware and external fittings are secure 5 Deploy the MicroCAT 36 Section 4 Deploying and Operating MicroCAT Recovery WARNING If the MicroCAT stops working while underwater is unresponsive to commands or shows other signs of flooding or damage carefully secure it away from people until you have determined that abnormal internal pressure does not exist or has been relieved Pressure housings may flood under pressure due to dirty or damaged o rings or other failed seals When a sealed pressure housing floods at great depths and is subsequently raised to the surface water may be trapped at the pressure at which it
3. 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 A high stability TCXO reference crystal with a drift rate of less than 2 ppm year is used to count the frequency from the oscillator Real Time Clock To minimize battery current drain a low power watch crystal is used as the real time clock frequency source Initial error and ambient temperature induced drift are compensated by measuring its actual frequency against the TCXO each time a reading of temperature and conductivity is made during calibration The measured discrepancy if any is used to arithmetically correct the low power clock during normal operation 52 Appendix Il Electronics Disassembly Reassembl Appendix Il Electronics Disassembly Reassembly available see Application Note 71 Desiccant Use and Regeneration
4. PRECAUTIONARY STATEMENTS HAZARD TO HUMANS AND DOMESTIC ANIMALS DANGER Corrosive Causes irreversible eye damage and skin burns Harmful if swallowed Harmful if absorbed through the skin or inhaled Prolonged or frequently repeated contact may cause allergic reactions in some individuals Wash thoroughly with soap and water after handling PERSONAL PROTECTIVE EQUIPMENT USER SAFETY RECOMMENDATIONS Users should Remove clothing immediately if pesticide gets inside Then wash thoroughly and put on clean clothing Wear protective gloves rubber or latex goggles or other eye protection and clothing to minimize contact Follow manufacturer s instructions for cleaning and maintaining PPE If no such instructions for washables use detergent and hot water Keep and wash PPE 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 T
5. connected Steps 3 through 5 below to update the Status bar e on the 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 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 the configuration setting for your instrument by selecting your instrument type from the Configure menu list Instrument Type Ei Mj COM Port fi x Select the instrument type SBE 37 and the computer COM port for communication with the MicroCAT Click OK The main screen looks like this Toolbar Command Data Echo Area Capture Status bar to file status grayed out if not capturing Upload parameter seez y cont seoggan loy scanrange casting Instrument Baud rate data bits EPROM version stop bits and parity e Menus Contains tasks and frequently executed instrument commands e Toolbar Contains buttons for frequently executed tasks and instrument commands All tasks and commands accessed through the Toolbar are also available in the Menus To display or hide the Toolbar select View Toolbar in the Vie
6. there is still absolute sensor so its raw output some residual effect allowing the MicroCAT to equilibrate before starting will Format 0 includes the effect of provide the most accurate calibration correction 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 Send TP to measure the MicroCAT pressure 100 times and transmit the ocean surface i e at the surface converted data decibars the output pressure is 0 decibars The MicroCAT uses the following equation 3 Compare the MicroCAT output to the reading from a good barometer at the to convert psia to decibars 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 db
7. Click Connect again or press the Enter key twice 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 rate is documented on the Configuration Sheet in this manual Check cabling between the computer and MicroCAT 20 Section 3 Preparing MicroCAT for Deployment 6 Display MicroCAT status information by clicking Status on the Toolbar The display looks like this SBE37 SM V 2 6 SERIAL NO 2165 20 Nov 2004 08 49 08 logging not started sample interval 30 seconds e restore control to the computer if samplenumber 52 free 190598 an illegal command is sent do not transmit real time data conserve battery energy if do not output salinity with each sample too much time elapses do not output sound velocity with each sample between commands store time with each sample If the system does not appear to number of samples to average 1 respond click Connect on the serial sync mode disabled Toolbar to reestablish wait time after serial sync sampling 120 seconds communications internal pump not installed temperature 7 54 deg C Note The MicroCAT has a 2 minute timeout algorithm designed to 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 Format 1 and not outputting salinity or sound velocity 23 7658 0 00019
8. and StartLater or Help files for complete details 1 2 3 4 Derive will require 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 9B1 Select the cnv file you created in Step 9A 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 which includes all the data in the input cnv file as well as the desired derived variables Use SBE Data Processing s SeaPlot module to plot the data 41 Section 5 Routine Maintenance and Calibration Section 5 Routine Maintenance and Calibration This section reviews corrosion precautions connector matin
9. banana plugs No soldering is required when assembling the battery pack because the batteries use the banana plugs and jacks as and terminals Installing Batteries CAUTION See Section 5 Routine Maintenance and Calibration for 1 Remove the I O connector end cap A Wipe the outside of the I O end cap and housing dry being careful to handling instructions for the remove any water at the seam between them plastic ShallowCAT housing B Remove the two flat Phillips head titanium machine screws Do not remove any other screws from the housing C Remove the I O end cap by pulling firmly and steadily on the plastic cable mounting guide It may be necessary to twist or rock the end cap back and forth or use a non marring tool on the edge of the cap to Screws securing connector loosen it f i end cap screws D The end cap is electrically connected to the electronics with a Molex shown PA connector Holding the wire cluster near the connector pull gently to remove 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 Cable mounting guide Molex connector O rings 15 Section 3 Preparing MicroCAT for Deployment 2 Remove the battery pack assembly from the housing A Remove the large Phillips head screw a
10. drying If possible dry gas backfill each time you open the housing If you cannot wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the housing Note that opening the battery compartment does not affect desiccation of the electronics Disassembly CAUTION 1 Remove the end cap and battery pack following instructions in Gas SopHon Bounne Mantendne a 3 ARE MicroCAT for Deployment Do not remove the and Calibration for handling eee instructions for the plastic ShallowCAT housing 2 The electronics are on a sandwich of three rectangular PCBs These PCBs are assembled to a bulkhead that can be seen at the bottom of the battery compartment To remove the PCB assembly A Use a long screwdriver 1 screwdriver to remove the Phillips head screw at the bottom of the battery compartment The Phillips head screw is a 198 mm 7 8 inch threaded rod with Phillips head B Pull out the PCB assembly using the PVC pylon post with Molex connector The assembly will pull away from the 10 position edge connector used to connect to the sensors Reassembly 1 Sight down into the MicroCAT housing to find the hole into which the Phillips head screw threads The hole is at the bottom of the housing next to the edge connector The small diameter brass sleeve between two of the PCBs guides the screw into the hole Align this sleeve with the hole 2 Guide the PCB assembly into the housing and
11. entered the housing presenting a danger if the housing is opened before relieving the internal pressure Instances of such flooding are rare However a housing that floods at 5000 meters depth holds an internal pressure of more than 7000 psia and has the potential to eject the end cap with lethal force A housing that floods at 50 meters holds an internal pressure of more then 85 psia this force could still cause injury If you suspect the 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 Physical Handling 1 Rinse the conductivity cell with fresh water See Section 5 Routine Maintenance and Calibration for cell cleaning and storage Reinsert the protective plugs in the anti foulant device cups If the batteries are exhausted new batteries must be installed before the data can be extracted Stored data will not be lost as a result of exhaustion or removal of batteries but the current date and time will have to be re entered upon redeployment See Section 5 Routine Maintenance and Calibration for replacement of batteries If immediate redeployment is not required it is best to leave the MicroCAT
12. is entering DDb e does not pressed output converted data roduce data with the x Measure temperature 100 times or until Esc key is adie header Testing TIR pressed output raw data information for processing TCR Measure conductivity 100 times or until Esc key is by SBE Data Processing pressed output raw data TPR Measure pressure 100 times or until Esc key is pressed output raw data TR Measure real time clock frequency 30 times or until Esc key is pressed output data 55 Appendix Ill Command Summary CATEGORY COMMAND DESCRIPTION Display calibration coefficients all coefficients and DC dates listed below are included in display Use individual commands below to modify a particular coefficient or date TCalDate S S Temperature calibration date Coefficients TA0 F F Temperature AO Ffloating TAI1 F F Temperature Al 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 CI F F Conductivity I Dates shown CJ F F Conductivity J ate when WBOTC F F Conductivity wbotc calibrations CTCOR F F Conductivity ctcor were CPCOR F F Conductivity cpcor performed PCalDate S S Pressure calibration date Calibration PAO0 F F Pressure AO coefficients PA1 F F Pressure A1 are initially PA2 F F Pressure A2 factory set PTCA0 F F Pressure ptca0 and should PTCA1 F F Pressure ptcal agree with PTCA2 F F Pr
13. its FLASH memory and goes to sleep enters quiescent state Logging is started with StartNow or StartLater and is stopped with Stop Transmission of real time averaged data to the computer is dependent on TxRealTime The MicroCAT has a lockout feature to prevent unintended interference with sampling If the MicroCAT is logging or waiting to start logging StartLater has been sent but logging has not started yet the MicroCAT will only accept the following commands DS DC TS TSR SL SLT SLTR QS and Stop Additionally if the MicroCAT is logging it cannot be interrupted during measurements to accept any commands If the MicroCAT is logging and appears unresponsive it may be in the middle of taking measurements continue to try to establish communications Note that if NAvg is large in comparison to Interval there will only be a very short period of time between samples when the MicroCAT can be interrupted this may make it difficult to interrupt or stop sampling Example Autonomous Sampling user input in bold Wake up MicroCAT Set sample number to 0 to overwrite previous data in memory Set up to sample every 60 seconds with 1 measurement averaged per sample Store time and date with samples and do not transmit real time data to computer Set up to automatically start logging on 10 January 2005 at 12 00 00 Send power off command after all parameters are entered system will automatically wake up and go to sleep for each sa
14. new data you can correct the coefficients and then upload the data again 49 Section 6 Troubleshooting 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 SM if OutputSal Y Alternatively salinity can be calculated in SBE Data Processing s Derive module from the data uploaded from memory cnv file 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 are known In moored free flushing instruments such as the 37 SM 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 SM include Cause Solution 1 Severe external bio fouling can restrict flow through the conductivity cell to such an extent that the conductivity measurem
15. 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 density and other parameters See the software manual on CD ROM Notes To prepare for re deployment 1 After all data has been uploaded send SampleNum 0 If this is not sent new data will be stored after the last recorded sample preventing use of the entire memory capacity Do one of the following e Send QS to put the MicroCAT in quiescent sleep state until ready to redeploy Leaving the MicroCAT with the batteries in place and in quiescent state retains the date and time Quiescent current is only 10 microamps so the batteries can be left in place without significant loss of capacity e Use StartNow to begin logging immediately e Set a date and time for logging to start using StartMMDDYY or StartDDMMYY StartHHMMSS
16. push the assembly until the edge connector is fully inserted A gentle resistance can be felt during the last 3 mm 8 inch of insertion as the PCB assembly mates to the Note edge connector If the rod will not tighten the PCBs nave n t fully mated orare mated 3 Drop the Phillips head screw into the hole and tighten gently in reverse 4 If it is difficult to align the cards obtain a 305mm 12 inch length of Note 6 32 threaded rod Before delivery a desiccant package is A Thread the end of this rod into the hole at the bottom of the housing inserted in the housing and the next to the edge connector electronics chamber is filled with dry B Slide the PCB assembly s small diameter brass sleeve down the rod Argon gas These measures help The rod will help guide the assembly into the proper position prevent condensation To ensure C Push the assembly until the edge connector is fully inserted proper functioning _ After the PCB assembly has been fully inserted remove the rod ts Install anew desiccant bag each D Drop the Phillips head screw into the hole and tighten gently time you open the electronics Sea ae wpe ener 5 Reinstall the battery pack and end cap following instructions in Section 3 Preparing MicroCAT for Deployment 53 A endix Ill Command Summa Appendix Ill Command Summary Note See Command Descriptions in Section 4 Deploying and Operating MicroCAT for detailed information and
17. ring I O connector end cap and sensor end cap O ring e 30149 Screw 6 32 x 5 8 PH stainless steel secures battery pack assembly to battery pylon e 30243 Washer 6 split ring lock stainless steel for screw 30149 e 30357 Screw 2 56 x 1 4 PH stainless steel secures battery pack s upper PCB to brass sleeve e 30986 Washer 2 split ring lock stainless steel for screw 30357 62 Index A About Sea Bird 5 Anti Foulant Device 57 removal before shipping to Sea Bird 47 replacing 46 B Batteries 10 35 description 15 endurance 13 installing 15 replacing 45 shipping precautions 7 Baud rate 25 28 C Cable length 14 25 Calibration 47 Cleaning 43 Clock 10 Command summary 54 Commands autonomous sampling 29 calibration coefficients 33 data upload 32 descriptions 26 logging 29 output format 28 polled sampling 31 serial line sync 31 setup 28 status 27 testing 32 Communication defaults 20 Conductivity cell cleaning 43 Connector 11 42 Convert asc to cnv 41 Corrosion precautions 42 D Data output format 28 34 Data processing 9 41 installation 17 Deployment installation 36 preparing for 15 setup 35 Derive 41 Description 8 Dimensions 11 Index 63 E Electronics disassembly reassembly 53 End cap 11 42 External power See Power external F Format data output 34 Func
18. useful for integrating the MicroCAT with satellite radio or wire telemetry equipment e Serial line sync In response to a pulse on the serial line the MicroCAT wakes up samples transmits real time data and goes to sleep This provides an easy method for synchronizing MicroCAT sampling with other instruments such as Acoustic Doppler Current Profilers ADCPs or current meters without drawing on their battery or memory resources The MicroCAT can be deployed in two ways e Cable installed The MicroCAT can be remotely controlled allowing for polled sampling or serial line sync or for periodic requests of data from the MicroCAT memory If desired data can be periodically uploaded while the MicroCAT remains deployed e Dummy plug installed The MicroCAT cannot be remotely controlled Autonomous sampling is programmed before deployment and data is uploaded after recovery 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 SBE 16 SEACAT C T Recorder but has improved acquisition electronics that increase accuracy and resolution and lower power consumption 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 loo
19. with batteries in place and in a quiescent state QS so that date and time are retained Because the quiescent current required is only 10 microamps the batteries can be left in place without significant loss of capacity less than 2 loss per year 37 Section 4 Deploying and Operating MicroCAT Uploading Data Note Data may be uploaded during 1 Double click on SeaTerm exe The display shows the main screen deployment or after recovery If uploading after recovery connect 2 Inthe Configure menu select SBE 37 Click on the Upload Settings tab The dialog box looks like this SBE 37 Configuration Options x COM Settings 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 the I O cable as described in Power and Communications Test in Section 3 Preparing MicroCAT for Deployment Upload Settings Upload Baud rate Upload data goeooseossossoossossoosesssosssossoossoss All as a single file C All separated by cast C By scan number range From a single cast C By cast number range Defines data upload type when using Upload button on Toolbar or Upload Data in Data menu e All as single file All data uploaded into one file By scan number range SEATERM prompts for beginning and ending scan sample numbers and uploads all data within range into one file
20. you have before calculating battery endurance A MicroCAT with the external The time required for each sample is dependent on the user programmed See Specifications above for sampling mode number of measurements per sample and inclusion of a data storage limitations pressure sensor in the MicroCAT see Sample Timing above So battery endurance is highly dependent on the application Two examples follow Example 1 A standard MicroCAT no external power option with no pressure sensor is set up to sample autonomously every 10 minutes 6 samples hour taking 1 measurement per sample NAvg 1 How long can it be deployed Sampling time 2 33 seconds 0 87 seconds NAvg 1 2 33 0 87 1 1 2 33 seconds Sampling current consumption 0 020 amps 2 33 seconds 0 047 amp seconds sample In 1 hour sampling current consumption 6 0 047 amp seconds sample 0 28 amp seconds hour Quiescent current 10 microamps 0 01 mA In 1 hour quiescent current consumption 0 01 mA 3600 seconds hour 0 036 amp seconds hour Total current consumption hour 0 28 0 036 0 32 amp seconds hour Capacity 5 amp hours 3600 seconds hr 0 32 amp seconds hour 56250 hours 2343 days 6 4 years However Sea Bird recommends that batteries should not be expected to last longer than 2 years in the field Number of samples 56250 hours 6 samples hour 337 000 samples Example 2 Same as above but taking 20 measurements per s
21. 0 062 20 Nov 2004 08 49 10 where 23 7658 temperature in degrees Celsius 0 00019 conductivity in S m 0 062 pressure in decibars 20 Nov 2004 date 08 49 10 time These numbers should be reasonable i e room temperature zero conductivity barometric pressure gauge pressure current date and time shipped from the factory set to Pacific Daylight or Standard Time 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 21 Section 4 Deploying and Operating MicroCAT Section 4 Deploying and Operating MicroCAT This section includes system operation with example sets of operation commands baud rate and cable length considerations detailed command descriptions data output formats deploying and recovering the MicroCAT e e e e e e uploading and processing data from the MicroCAT s memory Sampling Modes The MicroCAT has three basic sampling modes for obtaining data e Polled Sampling On command the MicroCAT takes one sample e Autonomous Sampling At pre programmed intervals the MicroCAT wakes up samples stores data in memory and goes to sleep e Serial Line Synchronization In response to a pulse on the serial line the MicroCAT wakes up samples stores data in memory and goes to sleep Commands can be used in various combinations to provide a high degree of operating flexibility D
22. 12 00 00 user input in bold S gt MMDDYY 071004 S gt HHMMSS 120000 S gt DDMMYY 100704 S gt HHMMSS 120000 or Baud x x baud rate 600 1200 2400 4800 9600 19200 or 38400 Default 9600 Length of cable that MicroCAT can drive for real time data is dependent on baud Maximum Cable Length meters Maximum Baud Rate 1600 600 800 1200 400 2400 200 4800 100 9600 50 19200 25 38400 OutputSal x OutputSV x Format x RefPress x 28 x Y Calculate and output salinity psu with each sample x N Do not x Y Calculate and output sound velocity m sec with each sample using Chen and Millero formula UNESCO Technical Papers in Marine Science 44 x N Do not x 0 output raw hex data for diagnostic use at Sea Bird x 1 default output converted data ttt tttt cc ccccc pppp ppp SSs ssss vvvv vvv dd mmm yyyy hh mm ss x 2 output converted data ttt tttt cc ccccc pppp PpP SSs ssss vvvv vvv mm dd yyyy hh mm ss x reference pressure gauge in decibars MicroCAT without installed pressure sensor uses this reference pressure in conductivity and optional salinity and sound velocity calculations Entry ignored if MicroCAT includes pressure sensor Section 4 Deploying and Operating MicroCAT Note Setting NAvg gt 1 has a large effect on battery endurance See Sample Timing and Battery Endurance in Section 2 Description of MicroCAT The
23. Bird OutputSal Y e Format 1 default v sound velocity m sec sent only if ttt tttt cc ccccc pppp ppp Sss ssss vvvv vvv dd mmm yyyy hh mm ss OutputSV Y Leading zeros are suppressed except for one zero to the left of the dd mmm yyyy day month Jan Feb decimal point Mar etc year mm dd yyyy month day year f e Format 2 hh mm ss hour minute second i Note that time is the time at the ttt tttt cc ccccc pppp ppp Sss ssss vvvv vvv mm dd yyyy hh mm ss start of the sample Leading zeros are suppressed except for one zero to the left of the decimal point e There is a comma but no space between temperature and conductivity All other data is Example Sample data output when pressure sensor is installed separated with aicomma and space StoreTime Y OutputSal Y OutputSV Y and Format 1 e Date and time are included with autonomous sampling data only if 4 1960 aa 2184 494 JOVIS 1506 185 StoreTime Y 07 Nov 2004 a eoe 2i e When TxRealTime Y real time temperature conductivity pressure salinity sound velocity date time autonomous data transmitted to the computer is preceded by a sign and a space e 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 out
24. C ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS ACTIVE INGREDIENT Bis tributyltin Oxide 0 cece cee ceee cece eee ce cena ee eeaenenees 53 0 OTHER INGREDIENTS cccecc cece ee ee teense n eases 47 0 DOUALA So et Seale soca s wads EEE hed pei oA oe baa aaa eS 100 0 DANGER See Precautionary Statements for additional information FIRST AID If on skin or Take off contaminated clothing clothing Rinse skin immediately with plenty of water for15 20 minutes Call a poison control center or doctor for treatment advice If swallowed Call poison control center or doctor immediately for treatment advice Have person drink several glasses of water Do not induce vomiting Do not give anything by mouth to an unconscious person If in eyes Hold eye open and 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
25. CTCOR 3 250000e 06 WBOTC 1 968100e 05 FECE 11 apr 03 RTCAO 9 999782e 01 RTCA1 1 749351le 06 RTCA2 3 497835e 08 The individual Coefficient Commands listed below are used to modify a particular coefficient or date TCalDate S S Temperature calibration date Pa point number TI Ea S string with no spaces TAIE F Temperature Al TA2 F F Temperature A2 TA3 F F Temperature A3 CalDate 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 PCalDate S S Pressure calibration date PAO0 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 ptcbO PTCB1 F F Pressure ptcb1 PTCB2 F F Pressure ptcb2 POffset F F Pressure offset RCalDate S S Real time clock calibration date RTCA0 F F Real time clock AO RTCA1 F F Real time clock Al RTCA2 F F Real time clock A2 33 Section 4 Deploying and Operating MicroCAT Data Output Formats Notes for Format 1 or 2 Each scan ends with a carriage return lt CR gt and line feed lt LF gt t temperature C ITS 90 c conductivity S m p pressure decibars included only if optional pressure sensor installed s salinity psu sent only if e Format 0 Raw hex data intended only for diagnostic use at Sea
26. FLASH memory output All samples converted data and turn power off consist of NAvg TSSOn Take sample store in FLASH memory output measurements converted data and leave power on averaged data is Output converted data from last sample then take new stored and or SLT sample and leave power on Data not stored in output as FLASH memory applicable Output raw data from last sample then take new SLTR sample and leave power on Data not stored in FLASH memory SL Output converted data from last sample taken with either Polled Sampling or Logging Commands x Y enable serial line sync mode When RS 232 RX line is high 3 10 VDC for 1 1000 milliseconds MicroCAT takes a sample consisting of NAvg Serial Line SyncMode x measurements stores averaged data in FLASH memory and transmits real time averaged data Sync x N disable serial line sync mode x time seconds MicroCAT monitors RS 232 line SyncWait x for commands after executing take sample command Range 0 120 seconds default 0 seconds i Upload data beginning with scan b ending with Hee oad on the Data Upload DDb e scan e Send Stop before sending DDb e Toolbar or Upload Data TT Measure temperature 100 times or until Esc key is in the Data menu to pressed output converted data upload data that will be TC Measure conductivity 100 times or until Esc key is processed by SBE Data pressed output converted data Processing Manually TP Measure pressure 100 times or until Esc key
27. 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 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 Notes e Batteries must be removed before returning the MicroCAT to Sea Bird Do not return used batteries to Sea Bird when shipping the MicroCAT for recalibration or repair e 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 R
28. MicroCAT s A D converter is factory configured to take 4 measurements of the thermistor and optional pressure sensor in rapid succession and record the average values during this time the conductivity measurement is also integrated and the average is recorded This factory setting provides the optimum trade off between low RMS noise and battery endurance additional averaging with NAvg is usually unnecessary Note Do not send SampleNum 0 uniil all data has been uploaded SampleNum lt 0 does not delete the data it just resets the data pointer If you accidentally send this command before uploading recover the data as follows 1 Set SampleNum x where x is your estimate of number of samples 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 Note e If the MicroCAT is logging data and the battery voltage is less than 6 15 volts for ten consecutive scans the MicroCAT halts logging and sets the logging status to low battery e 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 Setup Commands continued NAvg x PumpInstalled x Samp
29. NO A E E A E TAE sosseceseaseee 63 Section 1 Introduction Section 1 Introduction This section includes contact information Quick Start procedure photos of a standard MicroCAT shipment and shipping precautions About this Manual This manual is to be used with the SBE 37 SM 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 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 Install batteries and test power and communications Section 3 Preparing MicroCAT for Deployment 2 Deplo
30. Of primary concern are scratches on O ring mating and sealing surfaces Take extra precaution to avoid a scraping contact with these surfaces when replacing batteries and or re seating the end cap gt 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 gt 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 Detail Battery connector end cap e If you remove the screws securing the conductivity cell guard to the housing not typically done by the customer follow the same precautions as described above for removing and replacing the battery end cap See Battery Installation in Section 3 Preparing MicroCAT for Deployment and Appendix II Electronics Disassembly Reassembly for detailed step by step procedures for removing the MicroCAT s end cap 44 Section 5 Routine Maintenance and Calibration Replacing Batteries See Installing Batteries in Section 3 Preparing MicroCAT for Deployment 1 2 Remove the I O connector end cap and battery pack assembly
31. Remove the upper PCB from the assembly as follows A Remove the two small Phillips head screws and lock washers from the upper PCB B Carefully pry the upper PCB away from the batteries gently going around the circle of batteries to avoid bending the banana plugs Remove the existing batteries and replace with new batteries banana plug end first Ensure each battery is fully inserted Reinstall the upper PCB replace the battery pack assembly and reinstall the end cap 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 end 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
32. SBE 37 SM MicroCAT Conductivity and Temperature Recorder with RS 232 Interface aas amp A N 4 A A A N A A Roa ate AJ A A N 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 026 06 14 07 Website www seabird com Firmware Version 2 6b 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 Conten
33. ample NAvg 20 How long can it be deployed Sampling time 2 33 seconds 0 87 seconds NAvg 1 2 33 0 87 20 1 18 86 seconds Sampling current consumption 0 02 amps 18 86 seconds 0 38 amp seconds sample In 1 hour sampling current consumption 6 0 38 amp seconds sample 2 28 amp seconds hour Quiescent current 10 microamps 0 01 mA In 1 hour quiescent current consumption 0 01 mA 3600 seconds hour 0 036 amp seconds hour Total current consumption hour 2 28 0 036 2 32 amp seconds hour Capacity 5 amp hours 3600 seconds hr 2 32 amp seconds hour 7758 hours 323 days 0 9 years Number of samples 7758 hours 6 samples hour 46 500 samples External Power optional The MicroCAT can be ordered with an optional ability to be powered from an external source which supplies 5 Amps at 9 24 VDC The internal lithium pack is diode OR d with the external source so power is drawn from whichever voltage source is higher The MicroCAT can also be operated from the external supply without having the lithium batteries installed Electrical isolation of conductivity is retained in units with the external power option preventing ground loop noise contamination in the conductivity measurement 13 Section 2 Description of MicroCAT Cable Length and Optional External Power Note See Real Time Data Acquisition There are two issues to consider if powering the MicroCAT externally in Secti
34. and 37 SMP use the e current temperature same firmware The internal pump is applicable to the 37 SMP only Logging status can be logging not started logging data not logging waiting to start at not logging received stop command not logging low battery unknown status Example Display status for MicroCAT user input in bold command used to modify parameter in parentheses S gt DS SBE37 SM V 2 6 SERIAL NO 2165 20 Nov 2004 08 49 08 MMDDYY HHMMSS logging data sample interval 30 seconds Interval samplenumber 52 free 190598 SampleNum do not transmit real time data TxRealTime do not output salinity with each sample OutputSal do not output sound velocity with each sample OutputS V store time with each sample StoreTime number of samples to average 1 NAvg reference pressure 0 0 db RefPress serial sync mode disabled SyncMode wait time after serial sync sampling 120 seconds SyncWait internal pump not installed PumpInstalled N only valid setting for 37 SM temperature 7 54 deg C 27 Notes e DDMMYY and MMDDYY are equivalent Either can be used to set the date e If the battery pack has been removed date and then time must be reset e Always set date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set
35. ar 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 Section 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 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 the Enter key several times 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 c
36. asurements which are averaged and stored in the buffer To interrupt taking a sample press the Esc key TS TSR TSS TSSOn SLT SLTR SL Take sample output converted averaged data and leave power on Data is not stored in FLASH memory Take sample output averaged raw data and leave power on Data is not stored in FLASH memory Take sample store averaged data in FLASH memory output converted averaged data and turn power off If MicroCAT is logging or waiting to log when TSS is sent MicroCAT executes TS instead Take sample store averaged data in FLASH memory output converted averaged data and leave power on If MicroCAT is logging or waiting to log when TSSOn is sent MicroCAT executes TS instead Output converted averaged data from last sample then take new sample and leave power on Data is not stored in FLASH memory Output raw averaged data from last sample then take new sample and leave power on Data is not stored in FLASH memory Output converted averaged data from last sample taken with polled or autonomous sampling and leave power on Serial Line Sync Commands Note See Sampling Modes above for complete details on the operation of serial line synchronization SyncMode x SyncWait x 31 x Y Enable serial line synchronization When RS 232 RX line is high 3 10 VDC for 1 to 1000 milliseconds MicroCAT takes a sample consisting of NAvg measurements s
37. batteries to Sea Bird when shipping the MicroCAT for repair Section 1 Introduction The MicroCAT was shipped from the factory with the batteries packaged separately within the shipping box not inside the MicroCAT When packaged in the manner shown and described at left the batteries are not considered Dangerous Hazardous Goods and may be shipped via commercial aircraft those governed by DOT or IATA including passenger airlines or cargo carriers such as FedEx DHL UPS etc if no more than the number of batteries required to operate the instrument are included in the shipment i e no spares are included IMPORTANT NOTE Do not ship the assembled battery pack by commercial aircraft Refer to Lithium Battery Shipping Guidelines for background information on the applicable regulations as well as Sea Bird s interpretation of those regulations how they apply to the batteries in our equipment and how we package and label our equipment Before attempting to communicate with the MicroCAT the batteries must be installed following the instructions in Section 3 Preparing MicroCAT for Deployment If you will re ship the MicroCAT by commercial aircraft after you have finished testing 1 Remove the battery pack assembly from the MicroCAT 2 Remove the batteries from the battery pack assembly 3 Pack the batteries separately as described in Lithium Battery Shipping Guidelines Section 2 Description of MicroCAT Sectio
38. c mode Send power off command Click Connect on Toolbar to wake up S gt SAMPLENUM 0 S gt NAVG 1 S gt SYNCWAIT 25 S gt SYNCMODE Y S gt DS to verify setup S gt QS When ready to take a sample repeat as desired Set RS 232 RX line high 3 10 VDC for 1 1000 milliseconds space state MicroCAT takes 4 measurements stores averaged data in memory and outputs converted averaged data Set RS 232 RX line low lt 0 5 VDC mark state MicroCAT goes to sleep Repeat this process at periodic intervals as desired When ready to upload all data to computer disable serial line sync mode and then upload data and go to sleep Set RS 232 RX line high 3 10 VDC for 5 seconds space state MicroCAT disables serial line sync mode sets SyncMode N Set RS 232 RX line low lt 0 5 VDC mark state Press Enter key to get S gt prompt S gt DS to verify MicroCAT is communicating Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it S gt QS Real Time Data Acquisition The length of cable that the MicroCAT can drive is dependent on the baud Notes rate The allowable combinations are e Baud rate is set with Baud ee Set TxRealTime Y to output Maximum Cable Length meters Maximum Baud Rate real time data See Command 1600 600 Descriptions in this section for 800 1200 command details 400 2400 If using external power see 200 4800 E
39. cted the time out clock is reset to 2 minutes Within that time period you can communicate with the MicroCAT using the full range of commands polled sampling logging upload etc While the MicroCAT is monitoring gt If more than 25 break characters are received MicroCAT disables serial line sync mode sets SyncMode N Once serial line sync mode is disabled you can communicate with the MicroCAT using the full range of commands polled sampling logging upload etc gt If less than 25 break characters are received MicroCAT goes to sleep when the time out clock runs down Serial line sync mode remains enabled SyncMode Y In summary to disable serial line sync mode after executing the sampling sequence e If SyneWait 0 Put RS 232 line in space state greater then 3 volts for time equivalent to 25 characters e If SyncWait gt 0 gt Put RS 232 line in space state greater then 3 volts for time equivalent to 25 characters or gt If SynceWait is greater than 5 seconds put the MicroCAT in mark state within 3 seconds of executing the sampling sequence then send SyncMode N after waiting at least 3 seconds after executing the sampling sequence 24 Section 4 Deploying and Operating MicroCAT Example Serial Line Sync user input in bold Wake up MicroCAT Set sample number to 0 to overwrite previous data in memory Set NAvg 1 to take 1 measurement per sample Set SyncWait to 0 seconds and enable serial line syn
40. d Memory integral Pump e SBE 37 SI Serial Interface only no internal battery or memory e SBE 37 SIP Serial Interface only no internal battery or memory integral Pump The SM SMP SI and SIP are available with RS 232 standard or RS 485 optional interface 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 consisting of NAvg averaged measurements containing temperature conductivity optional pressure and optional date and time as well as optional derived variables salinity and sound velocity 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 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 X 100 Reagent grade non ionic su
41. e 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 the 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 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
42. ent 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 Glossa Glossary Battery pack Six 9 volt nominal 1 2 amp hour batteries each containing lithium cells of the type commonly used in cameras The battery pack also includes two small PCBs and a brass sleeve 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 deployment MicroCAT High accuracy conductivity temperature and optional pressure recorder A number of models are available e SBE 37 IM Inductive Modem internal battery and memory e SBE 37 IMP Inductive Modem internal battery and memory integral Pump e SBE 37 SM Serial interface internal battery and Memory e SBE 37 SMP Serial interface internal battery an
43. escriptions and examples of the sampling 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 NAvg measurements averages the measurements and sends the averaged 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 the number of measurements per sample to 1 Command MicroCAT to take a sample and send converted data to computer do not store data in MicroCAT s memory Send power off command Click Connect on Toolbar to wake up S gt NAVG 1 S gt Ts S gt QS 22 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 Use Stop to e stop logging e stop waiting to start logging after StartLater has been sent Once Stop is sent the MicroCAT will accept all commands again Autonomous Sampling Logging commands At pre programmed intervals Interval the MicroCAT wakes up samples data taking NAvg measurements for each sample and averaging the measurements stores the averaged data in
44. essure ptca2 Calibration PTCBO F F Pressure ptcb0 Certificates PTCB1 F F Pressure ptcb1 shipped with PTCB2 F F Pressure ptcb2 MicroCAT POffset F F Pressure offset RCalDate S S Real time clock calibration date RTCAO0 F F Real time clock AO RTCAI1 F F Real time clock A1 RTCA2 F F Real time clock A2 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 AQUATI
45. examples Note Do not set Interval to less than 10 seconds if transmitting real time data TxRealTime Y CATEGORY COMMAND DESCRIPTION Status DS Display status ne Set real time clock month day year MMDDYY mmddyy Follow with HHMMSS or it will not set date Set real time clock day month year DDMMYY ddmmyy Follow with HHMMSS or it will not set date HHMMSS hhmmss Set real time clock hour minute second Baud x x baud rate 600 1200 2400 4800 9600 19200 or 38400 Default 9600 x Y calculate and output salinity psu with each OutputSal x sample x N do not x Y calculate and output sound velocity m sec with OutputSV x each sample x N do not x 0 output raw hex data for diagnostic use Format x x 1 output converted data date dd mmm yyyy Setup x 2 output converted data date mm dd yyyy x reference pressure gauge in decibars used for RefPress x conductivity computation when MicroCAT does not have pressure sensor x number of measurements 1 1000 to take and NAvg x average per sample Default 1 larger values have a large impact on battery endurance x N Internal pump is not installed PumplInstalled x only valid setting for 37 SM x sample number for first sample when sampling begins After all previous data has been uploaded set SampleNum x to 0 before starting to sample to make entire memory available for recordin
46. for with MMDDYY or DDMMYY Notes The MicroCAT s baud rate set with Baud must be the same as SEATERM s baud rate set in the Configure menu Section 4 Deploying and Operating MicroCAT Notes e The MicroCAT does not store salinity and sound velocity in memory if OutputSal Y and OutputSV YV 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 e Salinity and sound velocity can also be calculated in SBE Data Processing from data uploaded from the MicroCAT s memory Notes e See Data Output Formats below e Date and time are included in autonomous sampling data only if StoreTime Y e Legend t temperature C ITS 90 c conductivity Siemens meter p pressure decibars sent only if optional pressure sensor installed s salinity psu sent only if OutputSal Y v sound velocity m sec sent only if OutputSV Y dd mmm yyyy day month year mm dd yyyy month day year hh mm ss hour minute second Setup Commands MMDDYY mmddyy DDMMYY ddmmyy HHMMSS hhmmss Set real time clock month day and year Must be followed by HHMMSS to set time Set real time clock day month and year Must be followed by HHMMSS to set time Set real time clock hour minute second Example Set current date and time to 10 July 2004
47. g If not reset to 0 data stored after last sample Qs Enter quiescent sleep state Main power turned off but data logging and memory retention unaffected x interval seconds between samples 5 32767 When commanded to start sampling with StartNow or StartLater at x second intervals MicroCAT takes Interval x ae sample consisting of NAvg measurements stores averaged data in FLASH memory transmits real time averaged data if TxRealTime Y and goes to sleep x Y store date and time with each sample StoreTime x es x N do not TxRealTime x ee oa real time averaged data Autonomous XEN CO Ot Sampling StartNow Start logging now Logging StartMMDDYY _ Delayed logging start month day year mmddyy Must follow with StartHHMMSS StartDDMMYY _ Delayed logging start day month year ddmmyy Must follow with StartHHMMSS pcg aaa Delayed logging start hour minute second StartLater Start logging at delayed logging start time Stop logging or stop waiting to start logging Press Stop Enter key to get S gt prompt before entering Stop Must send Stop before uploading data 54 Appendix Ill Command Summary CATEGORY COMMAND DESCRIPTION TS Take sample output converted data and leave power on Data not stored in FLASH memory TSR Take sample output raw data and leave power on Data not stored in FLASH memory Polled TSS Take sample store in
48. g and maintenance conductivity cell cleaning and storage pressure sensor maintenance plastic housing handling instructions replacement of batteries 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 CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors A mated connector does not require periodic disassembly or other attention Inspect a connector that is unmated for signs of corrosion product around the pins When remating 1 Lightly lubricate the inside of the dummy plug cable connector with silicone grease DC 4 or equivalent 2 Standard Connector Install the plug cable connector aligning the raised bump on the side of the plug cable connector with the large pin pin 1 ground on the 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 aligni
49. his material is toxic to fish Do not contaminate water when cleaning equipment or disposing of equipment washwaters PHYSICAL OR CHEMICAL HAZARDS Do not use or store near heat or open flame Avoid contact with acids and oxidizers DIRECTIONS FOR USE It is a violation of Federal Law to use this product in a manner inconsistent with its labeling For use only in Sea Bird Electronics conductivity sensors Read installation instructions in the applicable Conductivity Instrument Manual 59 Appendix IV AF24173 Anti Foulant Device STORAGE AND DISPOSAL PESTICIDE STORAGE Store in original container in a cool dry place Prevent exposure to heat or flame Do not store near acids or oxidizers Keep container tightly closed PESTICIDE SPILL PROCEDURE In case of a spill absorb 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 Continued on next page 61 Part gee bck Quanti
50. hows the last saved settings for that instrument S ection 3 Preparing MicroCAT for Deployment 3 In the Configure menu select SBE 37 The dialog box looks like this SBE 37 Configuration Options Upload Settings Header Information Interface for communication between computer and MicroCAT COM Settings Firmware Version COMM Port Baud Rate il 3600 Data Bits e 7 Ge Parity Mode AS 232 Full Duplex C AS 485 Half Duplex C Inductive Modem Modem AS485 ID Prompt iD C Automatically getID C Even C Odd None Cancel Default Help Lo Make the selections in the Configuration Options dialog box COMM Port COM 1 through COM 10 as applicable Baud Rate 9600 documented on Configuration Sheet in manual Data Bits 8 Parity None Mode RS 232 Full Duplex Click OK to save the settings In the Communications menu select Options Cycle baud when connecting Click Connect on the Toolbar 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 Established Communication gt This shows that correct communications between the computer and the MicroCAT has been established If the system does not respond with the S gt prompt e
51. ions for Plastic ShallowCAT Option n se 44 Replacing Batteriesiie ees seseevven thie utes exsent tet sate com AEA E E T R i 45 Replacing Anti Foulant Devices SBE 37 SI SM IM 46 Sensor Calibration s s cccscteccteiteccvecesescusdiccvkcccetaentvchdavndaeedertecaveetdorreeuveninancdevstedd 47 Section 6 Troubleshooting ccsccsssccsssscssssccssssccsssscssscsssseccssssees 49 Problem 1 Unable to Communicate with MicroCAT cecccessesseeseeeeeeees 49 Problem 2 No Data Recorded 200 00 cceeccesssceenceceseeeeseeceeeeeeneeceeeeeaeeceeresenaeeeee 49 Problem 3 Unreasonable T C or P Data ccc cccccccccccccessssseceeecesesseaeeeeeens 49 Problem 4 Salinity Spikes ees eeesesecsseseeeseceesecneseecaseeeesecaeesesneseeaeeees 50 AGIOSSAL Y sscvcsessscosssasecssscsesconsesseosssssedeonesesuavessoaccsosessedecsesesosiues sotncesonsesse 51 Table of Contents Appendix I Functional Description scsssssscsssessssscsseescoeees 52 SOTS OLS E E Popec ete E etude teeta i dlaheeemeh deen enon tee 52 Sensor Interface an e a a dc canech E aa a ae ae Ee inan 52 Reale Time Clock hre eee e E NA Aea A T EA 52 Appendix IT Electronics Disassembly Reassembly sseeeees 53 Appendix IIT Command Summary cscsssssssscssesssscesseesceees 54 Appendix IV AF24173 Anti Foulant Device ccscccsscesseeeees 57 Appendix V Replacement Parts scsscsssssssssssscssscscssscesseesseeees 61 I
52. leNum x Qs x number of conductivity temperature and optional pressure measurements 1 1000 to take and average for each sample Default 1 Sea Bird recommends keeping NAvg 1 x N Internal pump is not installed only valid setting for 37 SM x Y Not applicable to 37 SM x sample number for first sample when sampling begins After all previous data has been uploaded from MicroCAT set sample number to 0 before starting to sample to make entire memory available for recording If not reset to 0 data will be stored after last recorded sample Quit session and place MicroCAT in quiescent sleep state Main power is turned off Data logging and memory retention are not affected Autonomous Sampling Logging Commands Note StoreTime applies to autonomous sampling only Logging commands direct the MicroCAT to sample data at pre programmed intervals and store the data in its FLASH memory Interval x StoreTime x 29 x interval seconds between samples 5 32767 When commanded to start sampling with StartNow or StartLater at x second intervals MicroCAT takes NAvg measurements stores averaged data in FLASH memory transmits real time averaged data if TxRealTime Y and goes to sleep x Y Store date and time with each sample This adds 4 bytes per scan x N Do not Section 4 Deploying and Operating MicroCAT Notes e TxRealTime applies to autonomous samp
53. ling only e TxRealTime does not affect storing data to memory but slightly increases current consumption and time needed to sample and then transmit data e To capture real time data to a file do the following before starting logging 1 Click Capture on the Toolbar 2 Enter the desired file name in the dialog box The capture status displays in the status bar at the bottom of the screen Notes e StartDDMMYY and StartMMDDYY are equivalent Either can be used to set the delayed start date e After receiving StartLater the MicroCAT displays not logging waiting to start inreply to the Display Status DS command Once logging has started the DS reply displays logging data e If the delayed start date and time has already passed when StartLater is received the MicroCAT executes StartNow Autonomous Sampling Logging Commands continued TxRealTime x StartNow StartMMDDYY mmddyy StartDDMMYY ddmmyy StartHHMMSS hhmmss StartLater x Y Output real time data Averaged data is transmitted immediately after it is sampled If outputting real time data do not set Interval lt 10 seconds if NAvg 1 for larger values of NAvg increase Interval see Sample Timing in Section 2 Description of MicroCAT x N Do not Start logging now at rate defined by Interval Data is stored in FLASH memory Data is transmitted real time if TxRealTime Y Set delayed logging start month day year Mus
54. mparison to MicroCAT counter time base to produce overall 5 ppm accuracy 2 6 minutes year Standard Internal Batteries Nominal 7 2 Ampere hour pack consisting of six 9 volt lithium batteries Capacity for more than 300 000 samples for a typical sampling scheme see Battery Endurance for example calculation See Shipping Precautions in Section 1 Introduction External Input Power optional 0 5 Amps at 9 24 VDC To avoid draining the internal batteries use an external voltage greater than 10 VDC See External Power Optional Power Requirements Quiescent current 10 microamps Acquisition time 1 3 seconds per sample depending on sampling mode and inclusion of pressure sensor for 1 measurement per sample NAvg 1 Standard 37 SM without external power option Communication current 38 milliamps Sampling current 20 milliamps for autonomous or serial line sync sampling 39 milliamps for polled sampling 37 SM with external power option Communication current 35 milliamps Sampling current 35 milliamps Housing and Depth Rating Standard Titanium housing 7000 m 23 000 ft Optional Plastic ShallowCAT housing 250 m 820 ft Weight without pressure sensor Standard titanium housing In air 3 8 kg 8 3 Ibs Optional plastic ShallowCAT housing In air 2 7 kg 6 0 Ibs In water 2 3 kg 5 1 Ibs In water 1 2 kg 2 7 lbs 10 Section 2 Descri
55. mple Click Connect on Toolbar to wake up S gt SAMPLENUM 0 S gt INTERVAL 60 S gt NAVG 1 S gt STORETIME Y S gt TXREALTIME N S gt STARTMMDDYY 011005 S gt STARTHHMMSS 120000 S gt STARTLATER S gt DS to verify setup S gt QS After logging begins look at data from last sample to check results and then go to sleep Click Connect on Toolbar to wake up S gt SL S gt QS When ready to upload all data to computer wake up MicroCAT stop sampling upload data and then go to sleep Click Connect on Toolbar to wake up S gt STOP Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it S gt QS 23 Section 4 Deploying and Operating MicroCAT Note Use DS to view Serial Line Sync enable disable status Note If running SEATERM select Send 5 second break in the Communications menu to hold the RS 232 RX line in space state for 5 seconds This will always be more than 25 break characters and will cause the MicroCAT to exit serial line sync mode Serial Line Synchronization Serial Line Sync Serial Line Sync allows a simple pulse on the RS 232 line to initiate a sample This mode provides easy integration with ADCPs or current meters which can synchronize MicroCAT sampling with their own without drawing on their battery or memory resources If this mode is enabled SyncMode Y and the MicroCAT is powered down setti
56. mpt for line 4 Latitude Prompt for line 5 longitude Prompt for line 6 Prornpttor line 7 Co Promptf rline8 Prompto SsSs S ssSsSSSCSsi S Prompt for line 10 Prompto i S 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 5 Click Connect on the Toolbar to begin communications with the MicroCAT The display looks like this Communication Established S gt This shows that correct communications between the computer and the MicroCAT has been established If the system does not respond as shown above e Click Connect again 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 Note You may need to send Stop 6 If sampling autonomously command the MicroCAT to stop logging by several times to get the MicroCAT pressing the Enter key and sending Stop to respond 39 Section 4 Deploying and Operating MicroCAT 7 Display MicroCAT status information by clicking Sta
57. n 2 Description of MicroCAT This section describes the functions and features of the SBE 37 SM MicroCAT including specifications dimensions end cap connectors sample timing battery endurance and optional external power System Description 3gs 0 A A A A A A A A A A A A A A A Standard titanium housing ags FPVIII3997977979779779 Optional plastic ShalowCAT housing The SBE 37 SM MicroCAT is a high accuracy conductivity and temperature recorder pressure optional with internal battery and non volatile memory and a standard RS 232 serial interface Designed for moorings and other long duration fixed site deployments 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 feet 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 At pre programmed intervals the MicroCAT wakes up samples stores data in its FLASH memory and goes to sleep If desired real time data can also be transmitted e Polled sampling On command the MicroCAT takes one sample and transmits the data Polled sampling is
58. nd lock washer from the upper PCB B Lift the battery pack assembly straight out of the housing using the handle 3 Remove the two small Phillips head screws and lock washers from the upper PCB and lift the upper PCB off the brass sleeve Battery pack assembly 4 Insert each 9 volt battery onto the lower PCB one at a time banana plug Brass end first Ensure each battery is fully inserted sleeve 5 Reinstall the upper PCB A Press the upper PCB onto the battery pack assembly aligning the screw holes and mating banana plugs to the batteries Ensure the banana plugs are fully inserted into the batteries B Re fasten the upper PCB to the battery pack assembly with the two small screws and lock washers 6 Replace the battery pack assembly in the housing A Align the D shaped opening in the upper PCB with the D shaped notch on the shaft Lower the assembly slowly into the housing and once aligned push gently to mate the banana plugs on the battery compartment bulkhead with the lower PCB A post at the bottom of the battery compartment mates with a hole in the battery pack s lower D shaped PCB to prevent improper alignment notch B Secure the assembly to the shaft using the large Phillips head screw and lock washer Ensure the screw is tight to provide a reliable electrical contact 7 Reinstall the I O connector end cap A Remove any water from the O rings and mating surfaces in the housing with a lin
59. nds 0 87 seconds NAvg 1 Minimum time approximate required from beginning of one sample to beginning of next sample if NAvg 1 e After TS command 2 seconds e After TSSOn command 3 seconds e After TSS command 5 seconds Serial Line Sync Sampling Power on time for each sample e With pressure 2 83 seconds 1 27 seconds NAvg 1 e Without pressure 2 33 seconds 0 87 seconds NAvg 1 12 Section 2 Description of MicroCAT Battery Endurance Notes The battery pack has a nominal capacity of 7 2 amp hours For planning e f the MicroCAT is logging data purposes Sea Bird recommends using a conservative value of 5 amp hours and the battery voltage is less than 6 15 volts for ten consecutive Current consumption is as follows scans the MicroCAT halts logging e Acquisition time is shown above in Sample Timing Acquisition current and displays a low battery i indication inthe data varies depending on the type of MicroCAT i Standard MicroCAT without external power option Sampling power option has different power acquisition current is 20 milliamps for autonomous or serial line sync draw characteristics than the sampling 39 milliamps for polled sampling standard MicroCAT even when MicroCAT with external power option Sampling acquisition current used with internal batteries is 35 milliamps Verify which type of MicroCAT e Quiescent current is less than 10 microamps 0 09 AH per year
60. ng the RS 232 RX line high space state 3 10 VDC for 1 to 1000 milliseconds initiates the following sampling sequence e Wake up e Take sample consisting of NAvg measurements e Store averaged data in FLASH memory e Output real time converted averaged data After executing the above sequence the MicroCAT checks the RS 232 line and SyneWait These determine whether to power down immediately or accept commands from the computer and whether to leave the serial line sync mode enabled or disable it e SyncWait 0 and Mark State RS 232 RX line less than 0 5 volts MicroCAT immediately goes to sleep Serial line sync mode remains enabled SyncMode Y e SyncWait 0 and Space State RS 232 RX line greater than 3 volts MicroCAT monitors the RS 232 line for a time equivalent to 25 characters actual length of time is dependent on the baud rate gt Line remains in space state MicroCAT disables serial line sync mode sets SyncMode N at end of time Once serial line sync mode is disabled place the MicroCAT in mark state you can then communicate with the MicroCAT using the full range of commands polled sampling logging upload etc gt Line returns to mark state MicroCAT immediately goes to sleep Serial line sync mode remains enabled SyncMode Y e SyncWait gt 0 MicroCAT monitors the RS 232 line for SyncWait seconds During this time place the MicroCAT in mark state Each time a carriage return Enter key is dete
61. ng 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 or dummy plug is installed on the MicroCAT before deployment 42 Section 5 Routine Maintenance and Calibration Conductivity Cell Maintenance CAUTIONS e Do not put a brush or any object The MicroCAT s conductivity cell is shipped dry to prevent freezing in inside the conductivity cell to shipping Refer to Application Note 2D Instructions for Care and Cleaning clean it Touching and bending of Conductivity Cells for conductivity cell cleaning procedures and the electrodes can change the cleaning materials calibration Large bends and movement of the electrodes can damage the cell Do not store the MicroCAT with moored instrument water in the conductivity cell Freezing temperatures for example in Arctic environments or during air shipment can break the A conductivity cell filling and storage kit is available from Sea Bird The kit conductivity cell if it is full of water 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 e The Active Use after each cast section of the application note is not applicable to the MicroCAT which is intended for use as a Cleaning and storage i
62. nstall the desired components Install all the components or just install SEATERM terminal program and SBE Data Processing Power and Communications Test Locking sleeve Dummy plug PN ms Standard MicroCAT _ Ground Pin 1 large align with raised bump on connector The power and communications test will verify that the system works prior to deployment Test Setup 1 Remove dummy plug if applicable A By hand unscrew the locking sleeve from the MicroCAT s bulkhead 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 2 Standard Connector Install the I O cable connector aligning the raised bump on the side of the connector with the large pin pin 1 ground on the MicroCAT OR MCBH Connector Install the I O cable connector aligning the pins 3 Connect the I O cable to your computer s serial port 17 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
63. nstructions 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 e aa a MicroCAT with barbed anti foulant device cap s in place of the cap for cleaning l installed caps is likely to produce undesirable results in your data See and storage Replacing Anti Foulant Devices for safety precautions when handling the a AF24173 Anti Foulant Devices Remove plug Pressure Sensor optional Maintenance 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 keeping 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 Pressure sensor port plug 2 Rinse the pressure port with warm de ionized water to remove any particles debris etc CAUTION Do not put a brush or any object in 3 Replace the pressure port plug the pressure port Doing so may damage or break the pre
64. o minutes after the completion of a command the MicroCAT returns to the quiescent sleep state e Ifin quiescent state re establish communications by clicking Connect on the Toolbar or pressing the Enter key to get an S gt prompt 26 Section 4 Deploying and Operating MicroCAT Status Command DS Display operating status and setup Note Pak p If the battery voltage is below Equivalent to Status on Toolbar 6 15 volts the following displays in response to DS List below includes where applicable WARNING LOW BATTERY command used to modify parameter VOLTAGE Replace the e firmware version serial number date batteries before continuing and time MMDDYY or DDMMYY and HHMMSS e logging status e sample interval time Interval e number of samples in memory SampleNum and available sample space in memory e data acquired with autonomous sampling to be transmitted real time TxRealTime e output salinity with each sample OutputSal e output sound velocity with each sample OutputSV e store date and time with each sample acquired with autonomous sampling StoreTime e number of measurements to average for each sample NAvg e reference pressure RefPress only displays if no pressure sensor installed e serial sync mode state SyncMode e serial sync mode wait time SyneWait e internal pump installed never installed in 37 SM Note PumpInstalled N The 37 SM
65. ommunication 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 will be recorded Verify that the memory is not full using 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 SampleNum 6 to reset the memory After the memory is reset DS will show samplenumber 0 Problem 3 Unreasonable T C or P Data The symptom of this problem is a data file that contains unreasonable values for example values that are outside the expected range of the data Cause Solution 1 A data file 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 DC 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
66. on 4 Deploying and e Limiting the communication IR loss to volt if transmitting real time Operating MicroCAT for baud rate limitations on cable length if transmitting real time data data 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 7 Limiting Communication IR Loss to 1 Volt if Transmitting Real Time Data ote Common wire resistances eh as Resistance ohms 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 0 0025 1 volt because the difference in ground potential of the MicroCAT and ground 0 0040 controller prevents the MicroCAT from transmitting real time data 0 0064 Vv 1volt IR 0 0081 limit VOL UN limit f 0 0107 Maximum cable length R jimit wire resistance per foot 0 0162 where I communication current required by MicroCAT 35 milliamps for eae MicroCAT with external power option see Specifications 0 0653 Example 1 For 20 gauge wire what is maximum distance to transmit power to MicroCAT if transmitting real time data For 35 milliamp communications current R imit V imi 1 volt 0 035 Amps 28 5 ohms For 20 gauge wire resistance is 0 0107 ohms foot Ma
67. outine 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 frequency is recorded on the Calibration Certificate and should remain stable within 1 Hz over time The primary mechanism for calibration drift in conductivity sensors is the fouling of the cell by chemical or biological deposits Fouling changes the cell geometry resulting in a shift in cell constant Accordingly the most important determinant of long term sensor accuracy is the cleanliness of the cell We recommend that the conductivity sensor be calibrated before and after deployment but particularly when the cell has been exposed to contamination by oil slicks or biological material Temperature Sensor Calibration Th
68. p noise 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 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 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 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 The MicroCAT is supplied with a powerful Win 2000 XP software package SEASOFT Win32 which includes e SEATERM 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 a
69. ple For example if the MicroCAT is programmed to wake A nom mplin up and sample at 12 00 00 the utonomous Sa ping stored time will indicate 12 00 01 ae or 12 00 02 Power on time for each sample while logging e With pressure 2 83 seconds 1 27 seconds NAvg 1 e Without pressure 2 33 seconds 0 87 seconds NAvg 1 The MicroCAT goes into quiescent sleep state for at least 2 seconds between each sample If NAvg is large the time required to sample plus the quiescent time may be more than the interval between samples Interval the MicroCAT will then internally set the sampling rate to Interval plus the actual required sampling time Example 1 Interval 10 NAvg 1 no pressure sensor Sampling time 2 33 seconds 0 87 seconds NAvg 1 2 33 0 87 1 1 2 33 seconds 2 33 seconds 2 seconds for quiescent state 4 33 seconds lt 10 second sample interval OK Example 2 Interval 10 NAvg 8 no pressure sensor Sampling time 2 33 seconds 0 87 seconds NAvg 1 2 33 0 87 8 1 8 4 seconds 8 4 seconds 2 seconds for quiescent state 10 4 seconds gt 10 second sample interval Therefore MicroCAT internally sets sampling rate to Interval actual required sampling time 10 seconds 8 4 seconds 18 4 seconds Polled Sampling Time from receipt of take sample command to beginning of reply e With pressure 1 72 seconds 1 27 seconds NAvg 1 e Without pressure 1 22 seco
70. pload extension Before using Upload be processing e Configure upload and header parameters in data with SBE Configure menu Data e Send Stop to stop logging Processing Convert Convert uploaded asc data file to cnv data file which can be processed by SBE Data Processing Perform one or more diagnostic tests on Dissnostie MicroCAT Diagnostic test s accessed in this DS DC TS manner are non destructive they do not write and TSR over any existing instrument settings Interrupt and end current activity such as Stop uploading or diagnostic test Free computer COM port used to communicate Disconnect with MicroCAT COM port can then be used by another program See Command Descriptions in Section 4 Deploying and Operating MicroCAT 19 Computer COM port baud rate data bits and parity for communication between computer and MicroCAT Notes e SEATERM s baud rate must be the same as the MicroCAT baud rate set with Baud 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 your Windows directory SeaTerm ini contains the last saved settings for each instrument SBE 37 39 etc When you open SEATERM and select the desired instrument in the Configure menu the Configuration Options dialog box s
71. pload file has a asc extension F SEATERM sends the data upload DDb e command G When the data has been uploaded SEATERM shows the S gt prompt 40 Section 4 Deploying and Operating MicroCAT 9 Ensure all data has been uploaded from the MicroCAT by reviewing the data A Notes The entered deployment pressure can differ from the reference pressure entered prior to deployment using RefPress 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 pressure 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 pressure SEATERM contains a utility to convert the asc file to a cnv file that can be used by SBE Data Processing To convert the data 1 2 3 4 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
72. ption of MicroCAT Dimensions and End Cap Connector 139 7 5 50 port 67 3 2 65 4 05 62 2 2 45 Diameter O00000 Guide Connector ai Standard Wire Mounting Clamp and Guide Optional Wet Pluggable MCBH 3MP WB TI Standard 3 8 length base XSG 3 BCL HP SS 1 2 20 thread pee a s aod i e 3 pin Connector Pin Signal 1 Common 2 RS 232 data receive 3 RS 232 data transmit ertr 11 Pressure Dimensions in millimeters inches 27 9 1 10 6 63 0 261 Bare 4 places 419 1 16 50 e 108 0 4 25 Alternate Flat Surface Mounting Brackets Optional Wet Pluggable MCBH 4MP WB TI Optional 3 8 length base XSG 4 BCL HP SS 1 220 thread A 4 e ee 2 e Optional 4 pin Connector Pin Signal 1 Common 2 RS 232 data receive 3 RS 232 data transmit 4 9 24 VDC optional external power Section 2 Description of MicroCAT Sample Timing Notes Sample timing is dependent on several factors including e Acquisition time shown does not e Sampling mode autonomous polled or serial line sync include time to transmit real time e Inclusion of optional pressure sensor in MicroCAT Se eed Isdependent el e Number of measurements taken per sample NAvg If date and time are stored with the data time is the time at the start of the sample after a small amount of time for the MicroCAT to wake up and prepare to sam
73. putting 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 34 Section 4 Deploying and Operating MicroCAT Setup for Deployment Notes e If the battery pack has been removed the date and time must be reset e Always set date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set for with MMDDYY or DDMMYY Install new batteries see Section 5 Routine Maintenance and Calibration or ensure the existing battery pack has enough capacity to cover the intended deployment Program the MicroCAT for the intended deployment see Section 3 Preparing MicroCAT for Deployment for connection information see information in this section on commands and sampling modes A Ensure all data has been uploaded and then set SampleNum 0 to make the entire memory available for recording If SampleNum is not reset to 0 data will be stored after the last recorded sample B Set the date and then time C Establish the setup and logging parameters D Use one of the following command sequences to initiate sampling e StartNow to start logging now taking a sample con
74. rfactant 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 Sea Bird s modular SBE 3 and SBE 4 sensors and in Sea Bird s SEACAT 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 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 MicroCAT s CPU The pressure sensor is available in the following pressure ranges 20 100
75. s 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 a Optional C Conductivity S m Pressure 0 to full scale range Measurement 5 to 35 O0to7 20 100 350 600 Range 0 to 70 mS cm 1000 2000 3500 7000 meters a 0 0003 0 1 of initial Accuracy 0 002 0 003 mS cm full scale range Typical Stability 0 0002 0 0003 0 004 of per month i 0 003 mS cm full scale range 0 00001 0 002 of Resolution 9 0001 0 0001 mS cm full scale range Sensor 0 to 6 physical calibration Ambient pressure to f 1 to 32 over range 2 6 to 6 S m full scale range in Calibration vs plus zero conductivity air 5 steps Counter Quartz TCXO 2 ppm per year aging Time Base 5 ppm vs temperature 5 to 30 C Memory 2048K byte non volatile FLASH memory Data Storage Converted temperature and conductivity 5 bytes per sample 2 5 bytes each Time 4 bytes per sample Pressure optional 2 bytes per sample Recorded Parameters C and T C T and P C T and time C T P and time Memory Space number of samples 410 000 290 000 225 000 185 000 Real Time Clock Watch crystal type 32 768 Hz corrected for drift and aging by co
76. seceeeceeecaeeesecaeeeaeeeseeeeeeeeees 17 Test Setup sicsicecchssiecseh ea e a EE E E E EEEE EEE E 17 Testeri EE N E ce ENE EE A E A S EE 18 Section 4 Deploying and Operating MicroCAT sscssssccssssees 22 Sampling Modes sanina n e a a E E aa 22 Polled Sampling oiiaee ara N EEE EE E E 22 Autonomous Sampling Logging commands seseseseeeseeeeereerersrreeeress 23 Serial Line Synchronization Serial Line Sync 24 Real Time Data Acquisition 0 cc ecescececcsseeceeseceesecsersecsaeeeesaecaeesecnerseenaeeees 25 Timeout Description yestai n E hee duaabiiis guesses 26 Command Descriptions ispre eea aE E T ea 26 Data Output Formats 52 scssssscstetnhseses teased esise a EEE Ea E aee 34 Setup for Deployment oss sss0sid eare e a 35 Deploy Met seese r r aa E EEE S EAE EE Te 36 RECOVELY AAEE sass fetes Seed eb bye ptarsen ete 37 Physical Handling ienie ari a e R E evens Soba ctea eines 37 Wploadins Datay s cce ee a cde ang ha dia Rees 38 Section 5 Routine Maintenance and Calibration ssssssesees 42 Corrosion Precautions cecccsseesseesceesceesceecesecesecaecssecseecaeeeaeeseeeaeeeneeeeeeeees 42 Connector Mating and Maintenance 0 ees eeesecseeeecneeeeceseeeesseceeesecneeeesaeeees 42 Conductivity Cell Maintenance 00 0 eeeeeseeecsecseeeecneeeecaeeeesaecaeesesneeseesaeeees 43 Pressure Sensor optional Maintenance cceesceseceseeceenceceseeeeneeceereeeneeeeee 43 Handling Instruct
77. sisting of NAvg measurements every Interval seconds e StartMMDDYY2 Start HHMMSS and StartLater to start logging at the specified date and time taking a sample consisting of NAvg measurements every Interval seconds e SyncMode Y to place the MicroCAT in serial line sync mode so that a simple pulse on the RS 232 line will initiate a sample consisting of NAvg measurements 35 Section 4 Deploying and Operating MicroCAT Deployment The MicroCAT comes standard with a pre installed Sea Bird wire mounting clamp and guide 1 New MicroCATs are shipped with AF24173 Anti Foulant Devices and protective plugs pre installed Anti A Remove the protective plugs if installed from the anti foulant device foulant cups The protective plugs must be removed prior to deployment device or pressurization If the plugs are left in place during deployment cups 2 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 Remove plugs 2 2 Install the dummy plug or I O cable for optional external power and or serial communication during deployment CAUTION A Lightly lubricate the inside of the dummy plug or cable connector nc ase eas a with silicone grease DC 4 or equivalent they will damage the conn actors B Standard Connector shown in photos
78. ssure sensor 43 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 e The MicroCAT s battery end cap is retained by two 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 See detail precautions below gt When removing the end cap to replace the batteries and or to access the electronics be careful to avoid any impact in this area of the housing gt When reinstalling the end cap 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 Screw securing battery connector end cap one each side e A plastic housing is more susceptible to scratches than a titanium housing Do not use screwdrivers or other metal tools to pry off the end cap gt
79. t 2 cable length Cable length lt 467 ft 142 meters Note that 142 meters lt 814 meters maximum distance if MicroCAT is transmitting real time data so IR drop in 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 7 volts 12 volts 0 50 Amps 4 MicroCATs 0 0107 ohms foot 2 cable length gt 7 volts 5 volts gt 0 50 Amps 4 MicroCATs 0 0107 ohms foot 2 cable length Cable length lt 116 ft 35 meters to MicroCAT furthest from power source 14 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 Installation of the battery pack installation of Sea Bird software and testing power and communications are discussed Battery Installation WARNING Do not air ship the MicroCAT Description of Batteries and Battery Pack with batteries installed See Shipping Precautions in Sea Bird supplies six 9 volt batteries shipped with the MicroCAT in a Section 1 Introduction separate bag In addition to the six 9 volt batteries the assembled battery pack consists of e a brass sleeve with lower printed circuit board PCB containing a banana jacks e upper PCB containing
80. t be followed by StartHHMMSS to set delayed start time Set delayed logging start day month year Must be followed by StartHHMMSS to set delayed start time Set delayed logging start hour minute second Start logging at time set with delayed start date and time commands at rate defined by Interval Data is stored in FLASH memory Data is transmitted real time if TxRealTime Y or S gt STARTDDMMYY 200704 S gt STARTHHMMSS 120000 S gt STARTLATER Example Program MicroCAT to start logging on 20 July 2004 12 00 00 user input in bold S gt STARTMMDDYY 072004 S gt STARTHHMMSS 120000 S gt STARTLATER Note You may need to send Stop several times to get the MicroCAT to respond This is most likely to occur if sampling with a small Interval and transmitting real time data TxRealTime Y Stop 30 Stop logging that was started with StartNow or StartLater or stop waiting to start logging if StartLater was sent but logging has not begun yet Press Enter key to get S gt prompt before entering Stop Stop must be sent before uploading data using Upload on Toolbar Upload Data in Data menu or DDb e Section 4 Deploying and Operating MicroCAT Note The MicroCAT has a buffer that stores the most recent data sample Unlike data in the FLASH memory data in the buffer is erased upon removal or failure of power Polled Sampling Commands On command the MicroCAT takes NAvg me
81. t 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 B Plug the female end of the Molex connector onto the pins with the flat portion of the female end against the flat portion of the D cutout Verify the connector is properly aligned a backward connection will prevent communication with the computer C Carefully fit the end cap into the housing until the O rings are fully seated D Reinstall the flat Phillips head titanium screws to secure the end cap 16 Section 3 Preparing MicroCAT for Deployment Software Installation Note It is possible to use the MicroCAT without SEATERM by sending direct commands from a dumb terminal or terminal emulator such as Windows HyperTerminal Recommended minimum system requirements for software 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 programs on your computer using the supplied software CD 1 Insert the CD in your CD drive 2 Double click on Seasoft Win32 exe 3 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 i
82. tional description 52 G Glossary 51 Guard removal 46 L Limited liability statement 2 M Maintenance 42 Memory 10 Modes See Sampling modes P Parker Super O Lube 51 Parts replacement 61 Plastic housing handling 44 Power 14 external 10 13 Pressure sensor maintenance 43 Q Quick start 5 R Real time setup baud rate 25 cable length 25 Recovery physical handling 37 uploading data 38 Replacement parts 61 S Sample timing 12 Sampling modes 22 autonomous 23 polled 22 serial line sync 24 SBE Data Processing 9 17 41 SeaPlot 41 SEASOFT Win32 9 17 SEATERM 9 17 18 38 main screen 18 toolbar buttons 19 Sensors 10 ShallowCAT handling 44 Shipping precautions 7 Software 9 Software installation 17 Specifications 10 Storage 43 Super O Lube 51 System description 8 Index 64 T Terminal program 9 installation 17 Testing 17 Timeout description 26 Transient current 13 Triton 51 Troubleshooting 49 U Unpacking MicroCAT 6 Uploading data 38 W Wiring 17
83. tores averaged data in FLASH memory transmits real time averaged data and goes to sleep x N Disable serial line synchronization x time seconds MicroCAT monitors RS 232 line for commands after taking sample in serial line sync mode Range 0 120 seconds default 0 Section 4 Deploying and Operating MicroCAT Notes e To save data to a file click Capture on the Toolbar before entering DDb e e See Data Output Formats after these Command Descriptions e Use Upload on the Toolbar or Upload Data in the Data menu to upload data that will be processed by SBE Data Processing Manually entering DDb e does not produce data with the required header information and required format for processing by our software This command is included here for reference for users who are writing their own software Data Upload Command Send Stop before uploading data DDb e Upload data from scan b to scan e First sample is number 1 As data is uploaded screen first displays start time sample interval and start sample number These are start time sample interval and starting sample number for last set of logged data This information can be useful in determining what data to review input in bold S gt DD1 200 Example Upload samples through 200 for MicroCAT to a file user Click Capture on Toolbar and enter desired filename in dialog box Testing Commands Data obtained
84. ts Table of Contents Section 1 Introduction sesccscinesscssievesecuvennstcsuesecotevsseevsesaorancesstesvesusverece 5 About this Mamtal i ccscccsccssvecstcscdeceaceececttsecancacensaestedeceudeesdevsdadencnucesea cuedaccecaacees 5 How to Contact Sea Bird 0 0 ceeeesseceseceeseeceseeeeseecereseneeceseeseaeecseeseaeecseeesaeens 5 QUICK Stati e r e E EE cd on ede NE cab ed NEE E dn haa Cees 5 Unpacking MicroC AT ienee eea r ta arie E EA E E a 6 Shipping Precautions cc ceescssesecsesseceseeecesecseesccsevsecsaeeecsaeeeceecsaseeessecaeeeeenees 7 Section 2 Description of MicroCAT ccsscsssscssssccsssscssssssssescsses 8 System Desci pi ON 4 ceded sepecsss aE E n rE E vogue Ee ETE OE Ee TEREE ENE EESTE 8 Specifications a ete e e taea eare eae eaa e E ER E Ee ce mere 10 Dimensions and End Cap Connector sssseeseseeseeeeeeereesrstserreeresersesrerrerereee 11 Sample TMINE rr e e a a a e S rated A Aa E EEEE ANES 12 Battery Endurance sniene erates ire E arar e EENE EER EEEk 13 External Power optional cccccescessscesecesecesececeeaeceeeceeecaeesaeeeeeeeeeeereeerensees 13 Cable Length and Optional External Power 00 0 ceeeeeeceseeseeeeeneeereneeeees 14 Section 3 Preparing MicroCAT for Deployment sccssssees 15 Battery Installation srn o a R EEE tiara eens 15 Software Installation iseenesesse is e erorri eriei ani ced ie ea e Sras 17 Power and Communications Test cccccesscesccesece
85. tus on the Toolbar The display looks like this SBE37 SM V 2 6 SERIAL NO 2165 20 Nov 2004 08 49 08 not logging received stop command sample interval 30 seconds samplenumber 52 free 190598 do not transmit real time data do not output salinity with each sample do not output sound velocity with each sample store time with each sample number of samples to average 1 serial sync mode disabled wait time after serial sync sampling 120 seconds internal pump not installed temperature 7 54 deg C 8 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 the 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 u
86. ty in Number Part Application Description MicroCAT 50243 Lithium battery set 50243 1 6 sticks Power MicroCAT 1 Bis tributyltin oxide device 801542 APIR Piao koulant inserted into anti foulant 1 set of 2 Device device cup 231459 Anti foulant device cup Holds APAS na Roulant 2 Device 231505 Anti foulant device cap pecure ARZALJ3 Ant F lant 2 Device in cup Seals end of anti foulant cap when not deployed keeping dust 30284 PME and aerosols out of conductivity g cell during storage Octyl Phenol Ethoxylate Reagent grade non ionic cleaning 30411 Triton X 100 solution for conductivity cell supplied in 100 strength dilute as directed Conductivity cell filling amp 50087 1 storage device with hose Eor clean ms and storing conductivity cell barb caps 3 pin RMG 3FS to 9 pin 801412 DB 9S I O cable From MicroCAT to computer 1 2 4 m 8 ft 4 pin RMG 4FS to 9 pin s 801385 DB 9S T O cable with Sierra a ees nka 1 power leads 2 4 m 8 ft P P 17043 Locking sleeve for RMG Locks cable plug in place 1 3 pin RMG 3FSD LP 17045 1 dummy plug with For when cable not used 1 locking sleeve 4 pin RMG 4FSD LP 17046 1 dummy plug with locking For when cable not used 1 sleeve 3 pin MCIL 3FS wet pluggable connector i 801366 to 9 pin DB 9S T O cable From MicroCAT to computer 1 2 4 m 8 ft 4 pin MCIL 4FS wet 801206 pluggable connector to 9 From MicroCAT with optional 1 pin DB 9S I O cable with external po
87. w menu Grayed out Toolbar buttons are not applicable e 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 e Status bar Provides status information To display or hide the Status bar select View Status bar in the View menu ZA 18 Following are the Toolbar buttons applicable to the MicroCAT Section 3 Preparing MicroCAT for Deployment Toolbar Description Equivalent Buttons Command Re establish communications with MicroCAT Connect Computer responds with S gt prompt MicroCAT press Enter goes to sleep after 2 minutes without key communication from computer have elapsed Sius Display instrument setup and status logging DS number of samples in memory etc Coefficients Display calibration coefficients DC Capture instrument responses on screen to file may be useful for diagnostics File has cap Capture extension Press Capture again to turn off capture Capture status displays in Status bar Upload data stored in memory in format Convert DDb e utility can use to allow for post processing by use Upload SBE Data Processing Uploaded data has asc key if you will U
88. wer to computer power leads 2 4 m 8 ft Locking sleeve wet 171192 pluggable connector Locks cable plug in place 1 3 pin MCDC 3 F dummy 171500 1 plug with locking sleeve For when cable not used wet pluggable connector 4 pin MCDC 4 F dummy 171398 1 plug with locking sleeve For when cable not used 1 wet pluggable connector 171888 25 pin DB 25S to For use with computer with 1 9 pin DB 9P cable adapter DB 25 connector Appendix V Replacement Parts Continued from previous page Part bogs ott Quantity in N mb r Part Application Description MicroCAT O ring between end of 30507 Far kek 2 20ONS TSIN conductivity cell and 2 rin O ring anti foulant device cup Assorted hardware and O rings including 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 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 e 30860 Screw 6 32 x 1 2 FH TI secures cable clamp half to flat area of sensor end cap 37 SM SMP e 30544 Screw 8 32 x FH 60035 spare hardware titanium secures cell guard to O ring kit housing e 30859 Screw 8 32 x 3 8 FH PH titanium secures housing to I O connector end cap e 30857 Parker 2 033E5 15 80 O
89. with these commands is not stored in FLASH memory TT TC TP TTR TCR TPR TR 32 Measure temperature 100 times or until Esc key is pressed output converted data Measure conductivity 100 times or until Esc key is pressed output converted data Measure pressure 100 times or until Esc key is pressed output converted data Measure temperature 100 times or until Esc key is pressed output raw data Measure conductivity 100 times or until Esc key is pressed output raw data Measure pressure 100 times or until Esc key is pressed output raw data Measure real time clock frequency 30 times or until Esc key is pressed output data Section 4 Deploying and Operating MicroCAT Calibration Coefficients Commands DC Display calibration coefficients Roles Equivalent to Coefficients on Toolbar e Dates shown are when calibrations were performed Calibration coefficients are Example Display coefficients for MicroCAT that does not have a initially factory set and should pressure sensor user input in bold agree with Calibration S gt DC Certificates shipped e See individual Coefficient temperature 19 may 03 Commands below for definitions TAO 9 420702e 05 of the data in the example TAL 2 937924e 04 TA2 3 739471e 06 TA3 1 909551le 07 conductivity 19 may 03 G 1 036689e 00 H 1 444342e 01 I 3 112137e 04 3 005941e 05 CPCOR 9 570001e 08
90. ximum cable length 28 5 ohms 0 0107 ohms foot 2670 feet 814 meters Example 2 Same as above but there are 4 MicroCATs powered from the same power supply For 35 milliamp communications current R jimit V iimit 1 volt 0 035 Amps 4 MicroCATs 7 1 ohms Maximum cable length 7 1 ohms 0 0107 ohms foot 667 feet 203 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 after IR loss in the cable from the 0 5 Amp turn on transient two way resistance to power the MicroCAT The power requirement varies depending on whether any power is drawn from the batteries e Provide at least 10 volts after IR loss to prevent the MicroCAT from drawing any power from the batteries if you do not want to draw down the batteries V IR gt 10 volts e Provide at least 7 volts after IR loss if allowing the MicroCAT to draw down the batteries or if no batteries are installed V IR gt 7 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 and deploying MicroCAT with no batteries V IR gt 7 volts 12 volts 0 50 Amps 0 0107 ohms foot 2 cable length gt 7 volts 5 volts gt 0 50 Amps 0 0107 ohms foo
91. xternal Power optional in 100 9600 Section 2 Description of MicroCAT for power limitations a0 19200 on cable length 25 38400 If acquiring real time data click Capture on SEATERM s Toolbar before you begin logging The data displayed in SEATERM will be saved to the designated file Process the data as desired Note that this real time data file cannot be processed by SBE Data Processing as it does not have the required headers and format To process data with SBE Data Processing upload the data from the MicroCAT s memory 25 Section 4 Deploying and Operating MicroCAT Timeout Description The MicroCAT has a timeout algorithm If the MicroCAT does not receive a command for two minutes it powers down its communication circuits to prevent exhaustion of the batteries To re establish control wale up click Connect on the Toolbar or press the Enter key The system responds with the S gt prompt Command Descriptions This section describes commands and provides sample outputs See Appendix III Command Summary for a summarized command list When entering commands e Input commands to the MicroCAT in upper or lower case letters and register commands by pressing the Enter key e The MicroCAT sends CMD if an invalid command is entered e Ifthe system does not return an S gt prompt after executing a command press the Enter key to get the S gt prompt e If anew command is not received within tw
92. y the MicroCAT Section 4 Deploying and Operating MicroCAT A Install new batteries if necessary B Ensure all data has been uploaded and then set SampleNum 0 to make entire memory available for recording if desired Set date and then time Establish setup and logging parameters Set MicroCAT to start logging now or in the future Remove protective plugs from anti foulant device cups and verify AF24173 Anti Foulant Devices are installed Leave protective plugs off for deployment Install dummy plug or cable connector and locking sleeve Deploy MicroCAT using Sea Bird or customer supplied hardware 7A TO 5 Unpacking MicroCAT Section 1 Introduction Shown below is a typical MicroCAT shipment SBE 37 SM MicroCAT Batteries 25 pin to 9 pin adapter for use with computer with DB 25 connector I O Cable Eo ae Cell cleaning solution eee Triton X MicroCAT User Manual Software and Electronic Copies of Software Manuals and User Manual Shipping Precautions Assembled battery pack Note Note Batteries packed in heat sealed plastic Sea Bird then places batteries in bubble wrap outer sleeve and strong packaging for shipment WARNING Do not ship assembled battery pack by commercial aircraft All setup information is preserved in EEPROM when the batteries are removed Batteries must be removed before returning the instrument to Sea Bird Do not return used

SBE 37-SM RS

Contents

Download Pdf Manuals

Related Search

Related Contents