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SBE 37-IM MicroCAT User`s Manual

1. FUNCTION CATEGORY COMMAND DESCRIPTION Display calibration coefficients all coefficients and dates listed below are fiiDC included in display Use individual commands below to modify a particular coefficient or date TiiTCALDATE S S Temperature calibration date Coefficients iiTA0 F F Temperature AO F floating TiiTA1 F F Temperature A1 point number iiTA2 F F Temperature A2 S string with no iiT A3 F F Temperature A3 spaces iiCCALDATE S S Conductivity calibration date iiCG F F Conductivity G iiCH F F Conductivity H Continued iiCI F F Conductivity I iiC J F F Conductivity J Acquisition Dates shown iiWBOTC F F Conductivity wbotc Microcontroller are when iiCTCOR F F Conductivity ctcor Commands calibrations iiCPCOR F F Conductivity cpcor ii MicroCAT WELG performed iPCALDATE S S Pressure calibration date ID Calibr anon iiPA0 F F Pressure AO coefficients are iiPA1 F F Pressure Al initially factory iiPA2 F F Pressure A2 set and shouid iiPTCA0 F F Pressure ptca0 agree with 3 Calibration iiPTCA1 F F Pressure ptcal Certificates iiPTCA2 F F Pressure ptca2 shipped with iiPTCBO F F Pressure ptcb0 MicroCATs iiPTCB1 F F Pressure ptcbl iiPT CB2 F F Pressure ptcb2 iiPOFFSET F F Pressure offset iiRCALDATE S S Real time clock calibration date iiRTCA0 F F Real time clock AO iiRTCA1 F F Real time clock A1 TiiRTCA2 F F Real time clock A2 56 Appendix IV SIM Hooku
2. 12 Section 2 Description of MicroCAT Surface Inductive Modem SIM A Surface Inductive Modem SIM PCB is required for communication with the MicroCAT The SIM must be supplied with 7 to 25 volts DC power The operating current is approximately 60 milliamps when the modem is active The user s computer or buoy controller is interfaced via RS 232 optional RS 485 serial port to the SIM The standard interface protocol between the computer controller and SIM is 1200 2400 4800 or 9600 baud user selectable 8 data bits no parity RS 232C with echoing of characters The SIM impresses modulates the mooring cable with a DPSK signal that is encoded with commands received from the computer controller The encoded signals are demodulated by MicroCATs coupled to the cable Replies from MicroCATSs are similarly coupled to the cable and demodulated by the SIM The DPSK communication link between the SIM and MicroCAT s is half duplex so talking and listening is sequential only Although the data link between the SIM and the user s computer controller is established at 1200 2400 4800 or 9600 baud the DPSK modem communication between SIM and MicroCATs always operates at 1200 baud 13 Section 2 Description of MicroCAT Mooring Cable and Wiring Requirements Note The MicroCAT can mechanically accommodate mooring cables up to 16 mm See Appendix IV SIM Hookup 0 63 inches in diameter Clamps for specific diameters are availabl
3. Appendix V AF24173 Anti Foulant Device AF24173 Anti Foulant Devices supplied for user replacement are supplied in polyethylene bags displaying the following label AF24173 ANTIFOULANT 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 eee 47 096 100 096 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 antifoulant devices 7 14 g Sea Bird Electronics Inc EPA Registration No 74489 1 1808 136 Place NE EPA Establishment No 74489 W A 1 Bellevue WA 98005 59 Appendix V AF24173 Anti Foulant Device AF24173 Anti Foulant Device FOR USE ONLY IN SEA BIRD ELECTRONICS CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS ACTIVE INGREDIENT Bis tributyltin oxide sss 53 096 OTHER INGREDIENTS eeeeee eene 47 096 Total eis d bete uA ip baa aaa see eei 100 096 DANGER See Precautionary Statements for additional information FIRST AID Take off contaminated clothing If on skin OF Rinse skin immediately with plenty of water for15 20 minutes clothing Call a poison control center or doctor for treatment advice Ca
4. Automatically get I D Click OK to overwrite an existing configuration file or click Save As to save the configuration as a new filename Note When deploying on a mooring cable with multiple MicroCATs change Modem RS485 ID to Prompt ID after testing is complete 4 Turn on the SIM power supply if already on turn it off and then on again The display looks like this SBE 37 SURFACE MODEM V 2 3 S gt Sending wake up tone wait 4 seconds S gt This shows that correct communications between the computer and SIM has been established and the SIM has sent the wake up signal to the MicroCAT If the system does not respond as shown above e Click the Connect button on the Toolbar e Verify the correct instrument was selected in the Configure menu and the settings were entered correctly in the Configuration Options dialog box Note that the baud rate is documented on the Configuration Sheet e Check cabling between the computer SIM and MicroCAT 5 Click the Connect button on the Toolbar This allows the system to use the Automatically get I D feature when using the Toolbar keys or menus 20 Section 3 Preparing MicroCAT for Deployment 6 Confirm the MicroCAT has responded to the wake up signal by typing ID and pressing the Enter key The display looks like this id 01 where 01 is the number set at the factory or by the previous user See the Configuration Sheet for the factory set identification I
5. See Appendix IV SIM Hookup and Configuration On the SIM remove the jumper on J5 see Appendix IV This inserts a 1K resistor in series with the inductive loop and reduce signal amplitude preventing MicroCATs that are near but not attached to the inductive loop from responding to commands especially important when sending the ID command Connect the SIM to a 7 25 VDC power supply Approximately 60 milliamperes are required Do not turn on the power supply yet Connect the SIM to your computer s serial port using the 9 25 pin cable supplied with the SIM A 25 to 9 pin adapter is supplied for use if your computer has a 9 pin serial port MicroCAT Test wire to JP4 Modem SIM PCB SMODEM 1 or SMODEM 2 17 Section 3 Preparing MicroCAT for Deployment Test and Set MicroCAT ID Note e ATERM s help files for 1 Double click on SeaTerm exe If this is the first time the program is used detailed information on the use the setup dialog box appears of the program QC nal enm Sebop The canliguralinn fie 5eaTem chg wee rent found in the applcalinn path Pleane enter the folloeing metup and nrmnalicn setis sce To bape qiue thit ECHO instunent Type EEN cea ff i Select the instrument type SBE 37 and the computer COM port for communication with the MicroCAT Click OK 2 The main screen looks like this Toolbar Command Data Echo Area Capture Status bar to file
6. Use a fitting that has an O ring tapered seal such as Swagelok 200 1 4ST which conforms to MS16142 boss 49 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 ICC Inductive Cable Coupler which clamps to the insulated mooring cable and transfers the inductive signal on the wire to the SIM PCB installed inside the buoy or elsewhere MicroCAT High accuracy conductivity temperature and optional pressure recorder Three models are available SBE 37 IM Inductive Modem with internal battery and memory SBE 37 SM Serial interface with internal battery and Memory and SBE 37 SI Serial Interface only The SBE 37 SM and 37 SI are available with RS 232 or RS 485 interface PCB Printed Circuit Board SBE Data Processing Sea Bird s Win 95 98 NT 2000 XP data processing software which calculates and plots temperature conductivity and optional pressure and derives variables such as salinity and sound velocity Scan One data sample containing temperature conductivity optional press
7. sample n Data Output after Sending Operating Commands iiTS iiSL iiSLT iiTSSTX Date and time are always sent regardless of the setting for iiSTORETIME The six digit sample number is the number of samples in FLASH memory at the time the command to take a sample was sent e HiiFORMAT 1 default Conductivity S m SSSSS ttt tttt cc ccccc pppp ppp dd mmm yyyy hh mm ss sample e fiiFORMATz2 Conductivity mS cm SSSSS CCC CCCC ttt tttt pppp ppp hh mm ss mm dd yyyy sample Data Output after Sending Data Upload Command iiDDb e iiDNx Upload button on Toolbar or Upload Data in Data menu Date and time are sent only if iiSTORETIME Y e HiiFORMAT 1 default Conductivity S m ttt tttt cc ccccc pppp ppp dd mmm yyyy hh mm ss e 6 iiFORMAT 2 Conductivity mS cm ccc ccce ttt tttt pppp ppp hh mm ss mm dd yyyy 37 Section 4 Deploying and Operating MicroCAT Setup for Deployment 1 Install new batteries or ensure the existing battery pack has enough capacity to cover the intended deployment See Section 5 Routine Maintenance and Calibration for details on installing new batteries 2 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 iiSAMPLENUM 0 to make the entire memory available for
8. 00 Sample at iINTERVAL 2 from when GDATA received 00 28 00 Sample 00 38 00 Sample STAYON Command all MicroCATs to reset counting for 2 minute timeout preventing individual MicroCATs from going to sleep while you are communicating with another MicroCAT on the mooring RESUMELOGGING Simultaneously command all MicroCATs to start logging Get Data Command DATAii Get averaged data obtained with GDATA from MicroCAT with ID ii MicroCAT ID Command Only one MicroCAT can be on line when sending these commands ID ID ii Display MicroCAT ID 0 99 Set MicroCAT ID to ii where ii 0 99 Command must be sent twice because computer requests verification If more than 1 MicroCAT is on line all MicroCATs are set to same ID MicroCAT Communication Microcontroller Firmware Version Command iiDS 29 Display communication microcontroller firmware version for MicroCAT with IDzii Section 4 Deploying and Operating MicroCAT MicroCAT Acquisition Microcontroller Commands All MicroCAT Acquisition Microcontroller commands are preceded by ii i MicroCAT ID Status Command iiDS Display operating status and setup parameters Equivalent to Status button on Toolbar Note If the battery voltage is below 6 15 volts the following displays in response to the status command WARNING LOW BATTERY List below includes where applicable VOLTAGE Replace the batteries command used to modify parameter
9. 2 Description of MicroCAT e Appendix IV SIM Hookup and Configuration Wiring to SIM PCB Installing Optional Inductive Cable Coupler ICC 1 Loosen the two titanium hex head bolts connecting the two halves of the ICC Pull the halves apart 2 Place the two halves of the ICC around the insulated mooring cable with the cable inside the groove 3 Re tighten the hex bolts securing the insulated mooring cable in the ICC Groove for insulated mooring cable 39 Section 4 Deploying and Operating MicroCAT Recovery WARNING Pressure housings may flood under pressure due to dirty or damaged o rings or other failed seals causing highly compressed air to be trapped inside If this happens a potentially life threatening explosion can occur when the instrument is brought to the surface If the MicroCAT is unresponsive to commands or shows other signs of flooding or damage carefully secure the instrument in a location away from people until it has been determined that abnormal internal pressure does not exist Contact Sea Bird for assistance with procedures for safely relieving internal pressure Physical Handling 1 Rinse the instrument and 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
10. DATAO1 S DATAO2 S DATAO3 S gt PWROFF When ready to upload all data to computer wake up all MicroCATs stop sampling and upload data Click Connect on Toolbar to wake up all MicroCATs S gt 01STOP Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it repeat commands for MicroCATs 02 and03 S gt PWROFF 26 Section 4 Deploying and Operating MicroCAT 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 prompt after executing a command press the Enter key to get the S prompt e Ifanew command is not received within two minutes after the completion of a command the MicroCAT returns to the quiescent sleep state e Ifin quiescent state re establish communications by clicking the Connect button on the Toolbar or entering the PWRON command to get an S gt prompt 27 Section 4 Deploying and Operating MicroCAT SIM Commands SIM commands are directed to the Surface Inductive Modem to set it up for operation with the MicroCAT PWRON Send wakeup tone to all MicroCATs Equivalent to Connect button on
11. Inthe Configure menu select Header Form to customize the header The dialog box looks like this default prompts are shown ij Edit Header Prompts Lx m J The entries are free form 0 to 12 lines long This dialog box establishes e the 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 the 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 42 Section 4 Deploying and Operating MicroCAT 5 Click Connect on the Toolbar to begin communications with the MicroCAT The display looks like this SBE 37 SURFACE MODEM V 2 3 S Sending wake up tone wait 4 seconds S This shows that correct communications between the computer and the SIM has been established and the SIM has sent the wake up signal to the MicroCAT s If the system does not respond as shown above e Click Connect again e Check cabling between the computer SIM and MicroCAT s e Verify the correct instrument was selected and the COM settings were entered correctly in the Configure menu 6 If you have not already done so command the MicroCAT to stop data logging by typing iiSTOP ii MicroCAT ID and pressing the Enter key 7 Display MicroCAT status informati
12. MicroCAT to computer For the MicroCAT this is the same as the baud rate for general communication which was set on the COM Settings tab 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 e By scan number range SEATERM prompts for beginning and ending scan sample numbers and uploads all data within range into one file Note Set up Upload Settings Header Information and or Header Form Steps 2 through 4 e The first time you upload data and Make the selection for Upload Settings e f you want to change upload or header parameters 41 Section 4 Deploying and Operating MicroCAT 3 Click on the Header Information tab The dialog box looks like this SBE 37 Configuration Options Defines header information included with uploaded data e Prompt for header information Each time data is uploaded user is prompted to fill out user defined header form Include default header form in upload file User defined default header form included in upload file User is not prompted to add any information when data is uploaded Don t include default header form in upload file Header information not included in upload file Select the desired header information option Click OK to overwrite an existing configuration file or click Save As to save the configuration as a new filename 4
13. date and time with each sample x N do not store date and time iSTARTNOW Start logging now as defined by TiilNTERVAL iiSTARTMMDDYY mmddyy Delayed logging start month day year Must follow with iiSTARTHHMMSS iiSTARTDDMMYY ddmmyy Delayed logging start day month year Must follow with iiSTARTHHMMSS iiSTARTHHMMSS hhmmss Delayed logging start hour minute second iiSTARTLATER Start logging at delayed logging start time as defined by iiINTERVAL iiSTOP Stop logging or stop waiting to start logging Press Connect on Toolbar to get S gt prompt before entering this command Must send iiSTOP before uploading data 54 Note Use the Upload button on the Toolbar or Upload Data in the Data menu to upload data that will be processed by SBE Data Processing Manually entering the data upload command does not produce data with the required header information for processing by SBE Data Processing Appendix Ill Command Summary FUNCTION CATEGORY COMMAND DESCRIPTION HiiGA Start logging take first sample after m delay of iINTERVAL 2 iiSACG es averaged converted data tart new average Continued Oui 1 dm HiSARG utput averaged raw data L in Start new average oggmg T Output averaged converted data TiSAC Continue averaging HSAR RAUS averaged raw data ontin
14. 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 20 100 350 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 Initi
15. not comply with DOT and IATA regulations requiring battery packaging test documentation and therefore MUST NOT BE SHIPPED VIA COMMERCIAL AIRCRAFT those governed by DOT or IATA INCLUDING PASSENGER AIRLINES OR CARGO CARRIERS SUCH AS FEDEX DHL UPS ETC 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 to prevent accidental shorting of the battery contacts Section 2 Description of MicroCAT Section 2 Description of MicroCAT This section describes the functions and features of the SBE 37 IM MicroCAT including specifications dimensions and mooring requirements System Description Note For detailed information on inductive modem systems see Real Time Oceanography with Inductive Moorings at www seabird com under Technical Papers Note Half duplex communication is one direction at a time i e you cannot send commands and receive data at the same time For example if the SIM commands a MicroCAT to upload data nothing else can be done while the data is being sent the data upload cannot be stopped and commands cannot be sent to other MicroCATs on the line The SBE 37 IM MicroCAT is a high accuracy conductivity and temperature recorder pressure optional with internal battery and non vol
16. pr e nere eR EYE E ere PCR GM 47 Replacing Anti Foulant Devices SBE 37 SI SM IM ese 48 Sensor Calibrati n rue pedi eer ee a e Ree eo Eck 49 Table of Contents enr pin 50 Appendix I Functional Description ceci eee eerte entente tatnen 51 NOCHE 51 Sensor Interface uu aee reote etm e Rete Ree Leber ER eg eR AUR 51 Real Time Clock ein aee etre ib re e hee t e Re ee 51 Appendix II Electronics Disassembly Reassembly eere 52 Appendix III Command Summary eere eee eese estes ente seen enano 53 Appendix IV SIM Hookup and Configuration erect 57 Power Connection r Ero ener tnr 57 Interface Option Connection J1 J2 and J4 sss 58 VO Connector Wiring JP2 ccecceescesseessceseceseceseceecaeeeseeeeecaeeeaeeeeeeeseeereeeeeesees 58 Inductive Mooring Cable Connection JP4 sss 58 Normal Deployed Operation J5 eese 58 Appendix V AF24173 Anti Foulant Device eere esee eee 59 Appendix VI Replacement Parts eere cesse eese ee eren eren een enses seen ned 63 liii e M 64 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 Manu
17. start logging at the specified date and time taking a sample every iiINTERVAL seconds 38 Section 4 Deploying and Operating MicroCAT Attaching MicroCAT to Mooring Cable 1 New MicroCATs are shipped with AF24173 Anti Foulant Devices and Remove protective plugs pre installed plugs 2 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 2 Attach the mounting brackets to the insulated mooring cable A Open each mounting bracket by unthreading the two large titantum hex bolts Mounting brackets B Place the insulated mooring cable inside the brackets grooves loosen hardware to C Reinstall each bracket half with the hex bolts separate bracket D Verify that the two halves of the modem coupling toroid have come halves and mount on mooring cable together evenly 3 Verify that the hardware and external fittings are secure Modem coupling toroid System Installation and Wiring For system installation and wiring details refer to e Mooring Cable and Wiring Requirements in Section
18. 0 S gt 01STORETIME Y S gt 01STARTMMDDYY 011001 S gt 01LSTARTHHMMSS 120000 S gt 01STARTLATER repeat iiSAMPLENUM through iiSTARTLATER commands for MicroCATs 02 and 03 S gt PWROFF When ready to upload all data to computer wake up all MicroCATs stop sampling and upload data Click Connect on Toolbar to wake up all MicroCATs S gt 01STOP Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it repeat commands for MicroCATs 02 and03 S PWROFF 24 Section 4 Deploying and Operating MicroCAT Combo Sampling Combo Sampling combines Autonomous Sampling with the ability to retrieve the last stored data sample from each MicroCAT to allow the user to look at some data without stopping the sampling As in Autonomous Sampling the MicroCAT wakes up samples data at pre programmed intervals stores the data in its FLASH memory and powers off enters quiescent state When desired the user can request the last stored data sample from a particular MicroCAT Example Combo Sampling user input in bold Send wakeup tone to all MicroCATs Set the time and date using the global command For each MicroCAT set sample number to 0 to overwrite previous data in FLASH memory take samples every 10 seconds store data in FLASH memory store time and date with samples and start on 10 January 2001 at 12 00 00 Click Connect on Toolbar to wake up all MicroCATs
19. Appendix IV SIM Hookup and Configuration Interface Option Connection J1 J2 and J4 The SIM can be configured to accept RS 232 or RS 485 3 2 1 e RS 222 factory setting J2 1 Verify jumper is on J1 pins 2 and 3 e e Ei 2 Verify jumper is on J2 pins 2 and 3 3 Remove jumper on J4 een oons 1 Install jumper on J1 pins 1 and 2 2 Install jumper on J2 pins 1 and 2 3 Install jumper on J4 l O Connector Wiring JP2 Connect wires to JP2 as follows e RS232 1 Pin2 RS 232 transmit from SIM to computer 2 Pin3 RS222 transmit from computer to SIM 3 Pin5 Power Common e RS 485 1 Pin4 RS 485 A 2 Pin 5 Power Common 3 Pin6 RS 485 B ARE moooeo Inductive Mooring Cable Connection JP4 e MicroCAT installed with Inductive Cable Coupler ICC Connect wires from the ICC to JP4 e MicroCAT installed without Inductive Cable Coupler Connect wires from the mooring cable and seawater ground to JP4 Normal Deployed Operation J5 e Normal Deployed Operation Ensure jumper on J5 is installed e Instrument Setup and Lab Testing Remove jumper on J5 Removing the jumper on J5 inserts a 1K resistor in series with the inductive loop reducing the signal amplitude This prevents the MicroCATs in close proximity from responding to commands which is especially important when sending the ID command 58 Appendix V AF24173 Anti Foulant Device
20. Combo sampling Autonomous sampling is in progress and the SIM can request the transmission of the last stored data e Averaging sampling Autonomous sampling is in progress and the SIM can request the transmission of the average of the individual data samples acquired since its last request 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 The MicroCAT s internal field conductivity cell is immune to proximity errors and unaffected by external fouling A plastic cup with threaded cover at each end of the cell retains the expendable AF24173 Anti Foulant Device Section 2 Description of MicroCAT 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 cry
21. D number Note that the ID is stored in the MicroCAT s EEPROM and can be changed so that multiple MicroCATs on a single mooring each have a unique ID Press the Enter key to get the S prompt Note The SIM and MicroCAT have 7 Display MicroCAT status information by typing iiDS ii MicroCAT ID timeout algorithms designed to number and pressing the Enter key The display looks like this restore control to the computer if an illegal command is sent conserve battery energy if too SBE 37 IM V 2 1 SERIAL NO 0069 07 20 2000 11 55 19 logging not started much time elapses between sample interval 20 seconds commands samplenumber 52 free 127948 If the system does not appear to store time with each sample respond see Timeout Descriptions transmit sample number in Section 4 Deploying and A D cycles to average 4 temperature 19 48 deg C 8 Command the MicroCAT to take a sample by typing ftii TS ii MicroCAT ID number and pressing the Enter key The display looks like this 00069 23 7658 0 00019 0 062 20 Jul 2000 11 55 45 where 00069 MicroCAT serial number 69 371M15956 0069 23 7658 temperature in degrees Celsius 0 00019 z conductivity in S m 0 062 pressure in decibars 20 Jul 2000 date 11 55 45 z time These numbers should be reasonable i e room temperature zero conductivity barometric pressure gauge pressure current date and time Pacific Daylight or Standard Time Press the
22. Direct Connection Connection with Inductive Cable Coupler ICC Seawater ground Anchor 14 ection 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 testing power and communications and setting the MicroCAT ID are discussed Battery Installation WARNING Do not air ship the MicroCAT with batteries installed See Shipping Precautions in Section 1 Introduction Screws securing modem end cap screws shown partially removed Cable mounting bracket Molex connector Description of Batteries and Battery Pack Sea Bird supplies six 9 volt nominal 1 2 amp hour batteries shipped with the MicroCAT in a separate bag Since they use solid cathode cells and contain a total of less than 2 grams lithium metal these batteries are not hazardous material as defined by IATA or the US DOT They are free of shipping restrictions but shipment of the assembled battery pack is governed by the Hazardous Material Regulations 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 banana jacks e upper PCB containing banana plugs No soldering is required when assembling the battery pack because the batteries use the banana plugs and jacks as and ter
23. Enter key to get the S prompt 9 Each MicroCAT on a mooring must have a unique ID for communicating with the SIM and computer A Set the MicroCAT ID by typing ID ii 1i user assigned ID number and pressing the Enter key B The computer responds by requesting verification requiring you to again type ID ii and press the Enter key C Record the ID for future reference D Press the Enter key to get the S gt prompt E Click the Connect button on the Toolbar This allows the system to use the Automatically get I D feature when using the Toolbar keys or menus 10 Command the MicroCAT to go to sleep quiescent state by typing iiQS ii MicroCAT ID number and pressing the Enter key incen When testing and The MicroCAT is ready for programming and deployment ID setting is complete for all the MicroCATs reinstall the J5 jumper on the SIM PCB The jumper must be installed for Normal Deployed operation 21 Section 4 Deploying and Operating MicroCAT Section 4 Deploying and Operating MicroCAT This section includes a discussion of system operation example sets of operation commands and detailed command descriptions It also provides instructions for deploying and recovering the MicroCAT and uploading and processing data from the MicroCAT s memory Operation Description The MicroCAT s internal functions are supervised by two internal microcontrollers The acquisition microcontroller supervises m
24. ISPOSAL 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 10 5 02 62 A endix VI Replacement Parts Appendix VI Replacement Parts Part i E US Quantity in Numb r Part Application Description MicroCAT AF24173 Bis tributyltin oxide device 801347 inserted into anti foulant 2 Anti Foulant Device device cup 231459 Anti foulant device cup Holds APT ai 2 Foulant Device 231505 Anti foulant device cap pecs DS An 2 Foulant Device in cup Seals end of anti foulant cap when not deployed keeping 30984 Plug dust and aerosols out of 2 conductivity cell during storage O ring between end of 30507 Parker APO HM conductivity cell and anti 2 O ring foulant device cup Machine screw 4 20 x 30900 2 hex head
25. S gt MMDDYY 010501 S gt HHMMSS 120000 S gt 01SAMPLENUM 0 S gt 01LINTERVAL 10 S gt 01STORETIME Y S gt 01STARTMMDDYY 011001 S gt 01LSTARTHHMMSS 120000 S gt 01STARTLATER repeat iiSAMPLENUM through iiSTARTLATER commands for MicroCATs 02 and03 S gt PWROFF After logging begins look at data from last sample to check results Click Connect on Toolbar to wake up all MicroCATs S gt 01SL S gt 02SL S gt 03SL S gt PWROFF When ready to upload all data to computer wake up all MicroCATs stop sampling and upload data Click Connect on Toolbar to wake up all MicroCATs S gt 01STOP Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it repeat commands for MicroCATs 02 and03 S gt PWROFF 25 Section 4 Deploying and Operating MicroCAT Averaging Sampling Averaging Sampling combines Autonomous Sampling with the ability to retrieve averaged data from each MicroCAT to allow the user to look at averaged data without stopping sampling As in Autonomous Sampling the MicroCAT wakes up samples data at pre programmed intervals stores the data in its FLASH memory and powers off enters quiescent state As the MicroCAT is sampling it automatically adds the data values C T and optional P for each sample to an averaging section in the FLASH memory and keeps track of the number of samples since the last averaging request When desired the user c
26. SACG iSARG iiSAC iiSAR Stop data logging or stop waiting to start logging if iiSTARTLATER was sent but logging has not begun Press Connect button on Toolbar to get an S gt prompt before entering this command This command must be sent before uploading data Start data logging now First sample will be taken after delay of GHIINTERVAL 2 Data is stored in FLASH memory Output averaged data converted Start new average Output averaged data raw Start new average Output averaged data converted Continue averaging Output averaged data raw Continue averaging Operating Commands These commands are used by an external controller to request a sample from the MicroCAT Tii TS Ti TSR iiSLT iiSLTR iiTSSTX iiSL 33 Take sample and output converted data Data is not stored in FLASH memory Take sample and output raw data Data is not stored in FLASH memory Output converted data from last sample and then take new sample Data is not stored in FLASH memory Output raw data from last sample and then take new sample Data is not stored in FLASH memory Take sample store in FLASH memory and transmit converted data If MicroCAT is logging or waiting to log when this command is sent MicroCAT executes iiTS command instead Output converted data from last sample taken with either Operating Command or data logging see Logging Commands Section 4 Deploying and Op
27. SBE 37 IM MicroCAT Conductivity and Temperature Recorder with Inductive Modem jum n 3 Ij p F 3 i k r4 x x a User s Manual Sea Bird Electronics Inc 1808 136 Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Manual Version 011 01 06 03 Fax 425 643 9954 37 IM Digital Firmware Version 2 2 amp later E mail seabird seabird com 37 IM Modem Firmware Version 1 2 amp later Website www seabird com SIM Firmware Version 2 5 amp later Limited Liability Statement Extreme care should be exercised when using or servicing this equipment It should be used or serviced only by personnel with knowledge of and training in the use and maintenance of oceanographic electronic equipment SEA BIRD ELECTRONICS INC disclaims all product liability risks arising from the use or servicing of this system SEA BIRD ELECTRONICS INC has no way of controlling the use of this equipment or of choosing the personnel to operate it and therefore cannot take steps to comply with laws pertaining to product liability including laws which impose a duty to warn the user of any dangers involved in operating this equipment Therefore acceptance of this system by the customer shall be conclusively deemed to include a covenant by the customer to defend indemnify and hold SEA BIRD ELECTRONICS INC harmless from all product liability claims arising from the use or servicing of this system Table of Contents Table
28. Toolbar PWROFF Send power off command to all MicroCATs Main power turned off and MicroCATs placed in quiescent sleep state Data logging and memory retention not affected DS Display SIM firmware version and status Example user input in bold S gt DS SBE 37 SURFACE MODEM V 2 3 wait time for dataNN response 1000 msec wait time for relay command response 20 seconds wae CN baud rate set with BAUD x x baud rate between SIM and BAUD must be the same as computer controller 1200 2400 4800 or SEATERM s baud rate set in the 9600 Default 9600 Configure menu DATANNMAX x x timeout milliseconds that applies to DATAii command only If no reply is Note received within x 0 65535 control is DATANNMAX and RELAYMAX returned to computer and other commands reset to their default values if power can be sent Default 1000 milliseconds is removed from the SIM RELAYMAX x x timeout seconds that applies to all other commands If no reply is received within x 0 3276 control is returned to computer and other commands can be sent Default 20 seconds ECHOON Echo characters received from computer default computer monitor will show entered commands as you type ECHOOFF Do not echo characters received from computer computer monitor will not show entered commands as you type 28 Section 4 Deploying and Operating MicroCAT MicroCAT Communication Microcontroller Commands G
29. a particular coefficient or date iiTCALDATE S S Temperature calibration date cee Ti TAO F F Temperature AO S string SR no spaces iiTA1 F F Temperature Al iiTA2 F F Temperature A2 iiTA3 F F Temperature A3 iiCALDATE S S Conductivity calibration date iiCG F F Conductivity G iiCH F F Conductivity H iiCI F F Conductivity I iiCJ F F Conductivity J iiWBOTC F F Conductivity wbotc iiCTCOR F F Conductivity ctcor iiCPCOR F F Conductivity cpcor iiPCALDATE S S Pressure calibration date iiPAO F F Pressure AO iiPA1 F F Pressure Al iiPA2 F F Pressure A2 iiPTCA0 F F Pressure ptca0 iiPTCA1 F F Pressure ptcal iiPTCA2 F F Pressure ptca2 iiPTCB0 F F Pressure ptcbO iiPTCB1 F F Pressure ptcb1 iiPTCB2 F F Pressure ptcb2 TiiPOFFSET F F Pressure offset TiiRCALDATE S S Real time clock calibration date TiiRTCAO F F Real time clock A0 TiiRTCA1 F F Real time clock A1 TiiRTCA2 F F Real time clock A2 36 Section 4 Deploying and Operating MicroCAT Data Output Formats Notes for FORMAT 1 or 2 i MicroCAT ID s MicroCAT serial number t temperature C ITS 90 c conductivity p pressure decibars sent only if optional pressure sensor installed hh mm ss hour minute second dd mmm yyyy day month Jan Feb Mar etc year mm dd yyyy month day year n number of data samples contained in average sample six digit sample number sent only if ii TXSAMPLENUM Y e Leading zer
30. al This manual is to be used with the SBE 37 IM MicroCAT Conductivity and Temperature Recorder pressure optional with Inductive Modem 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 Perform pre check Section 3 Preparing MicroCAT for Deployment A Install batteries B Test power and communications and set MicroCAT ID 2 Deploy MicroCAT Section 4 Deploying and Operating MicroCAT A Install new batteries if necessary B Ensure all data has been uploaded and then set iiSAMPLENUM 0 to make entire memory available for recor
31. al 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 51 A endix Il Electronics Disassembly Reassembl Appendix Il Electronics Disassembly Reassembly Disassembly Remove the modem end cap and battery pack following instructions in Installing Batteries in Section 3 Preparing MicroCAT for Deployment Do not remove the titanium guard 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 198mm 7 8 inch threaded rod with Phillips head B Pull out the PCB assembly using the PVC pylon post post with 3 pin Molex connector The assembly will pull away from the 10 position edge connector used to connect to the sensors Reassembly Note If the rod will not tighten the PCBs have not fully mated or are mated in reverse Note Before delivery a desiccant package is inserted in the housing and the electronics chamber is filled with dry Argon gas These measures help prevent condensation To
32. an globally request the average of the data sampled since the last request Each MicroCAT gets the data from the averaging section in FLASH divides the sums by the number of samples holds the averaged data C T and optional P in a buffer and resets the averaging section to begin a new average The user can then request the averaged data from a particular MicroCAT Example Averaging Sampling user input in bold Send wakeup tone to all MicroCATs Set the time and date using the global command For each MicroCAT set sample number to 0 to overwrite previous data in FLASH memory take samples every 10 seconds store data in FLASH memory store time and date with samples and start on 10 January 2001 at 12 00 00 Click Connect on Toolbar to wake up all MicroCATs S gt MMDDYY 010501 S gt HHMMSS 120000 S gt 01SAMPLENUM 0 S gt 01LINTERVAL 10 S gt 01STORETIME Y S gt 01STARTMMDDYY 011001 S gt 01LSTARTHHMMSS 120000 S gt 01STARTLATER repeat iiSAMPLENUM through iiSTARTLATER commands for MicroCATs 02 and03 S gt PWROFF After logging begins send the global command to calculate Note converted average data and start a new average for each Sending GDATA resets the MicroCAT Then send the command to each MicroCAT to logging time base The next transmit the averaged data sample is taken at iiINTERVAL 2 after the MicroCAT receives the GDATA command Click Connect on Toolbar to wake up all MicroCATs S gt GDATA S
33. atile memory It uses an Inductive Modem IM to transmit data and receive commands over a plastic jacketed steel mooring cable or other insulated conductor using differential phase shift keyed DPSK telemetry No electrical cables or connectors are required The MicroCAT s built in inductive coupler split toroid and cable clamp provide easy and secure attachment to the mooring cable 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 Communicating with one or more MicroCATs requires the use of a Sea Bird Surface Inductive Modem SIM The SIM provides a standard serial interface between the user s computer or other controlling device and up to 100 MicroCATs or other IM compatible sensors coupled to a single cable The user can communicate with the SIM via full duplex RS 232C or half duplex RS 485 Commands and data are transmitted half duplex between the SIM and the MicroCAT 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 Polled sampling On command the MicroCAT takes one sample and transmits data e Autonomous sampling At pre programmed intervals the MicroCAT wakes up samples stores data in its FLASH memory and powers off e
34. ation Section 5 Routine Maintenance and Calibration This section reviews corrosion precautions conductivity cell storage and cleaning pressure sensor maintenance 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 avoid direct electrical connection of the MicroCAT housing to mooring or other dissimilar metal hardware Conductivity Cell Maintenance CAUTION Do not store the MicroCAT with water in the conductivity cell Freezing temperatures for example in Arctic environments or during air shipment can break the conductivity cell if it is full of water CAUTION Do not put a brush or any object inside the conductivity cell to clean it Putting an object inside the cell can damage and break the cell The MicroCAT s conductivity cell is shipped dry to prevent freezing in shipping Routine Rinsing after Recovery After each recovery rinse the cell with clean de ionized water drain and gently blow through the cell to remove larger water droplets Do not use compressed air which typically contains oil vapor Re insert the protective
35. before continuing e firmware version serial number date and time HiiMMDDYY or TiiDDMMYY Z and fti HHMMSS e logging status e sample interval time fiiINTERVAL x e number of samples in memory and available sample space in memory e whether time is stored with each sample iiSTORETIME e whether sample number is transmitted when operating command is sent HiTXSAMPLENUM e A D cycles to average per sample e reference pressure iiREFPRESS e current temperature 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 01 user input in bold S gt 01DS SBE37 IM V 2 1 SERIAL NO 001 0069 07 20 2000 11 55 19 logging data sample interval 30 seconds samplenumber 52 free 127948 store time with each sample transmit sample number A D cycles to average 4 reference pressure 0 0 db temperature 7 54 deg C 30 Section 4 Deploying and Operating MicroCAT Notes e iiDDMMYY and iiMMDDYY commands are equivalent Either can be used to set the date e If the MicroCAT battery pack has been removed the date and time must be reset e Always set both 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 t
36. cessing 9 17 44 SEASOFT DOS 9 SEASOFT Win22 9 17 SEATERM 9 17 18 41 main screen 18 toolbar buttons 19 Sensors 10 Shipping precautions 7 SIM See Surface Inductive Modem Software 9 Software installation 17 Specifications 10 Storage 45 Surface Inductive Modem description 13 wiring 57 System description 8 Index 65 T Terminal program 9 18 41 installation 17 Testing 17 Timeout descriptions 22 U Unpacking MicroCAT 6 Uploading data 41 W Wiring 39
37. d 4 first Ensure each battery is fully inserted 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 Re fasten the upper PCB to the battery pack assembly with the two small screws and lock washers 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 PCB to prevent improper alignment 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 modem end cap A C D Remove any water from the O rings and mating surfaces in the housing with a lint free cloth or tissue Inspect the O rings and mating surfaces for dirt nicks and cuts Clean as necessary Apply a light coat of O ring lubricant Parker Super O Lube to O ring and mating surfaces Plug the female end of the 3 pin 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 ali
38. d to retrieve data periodically from MicroCAT while it is on mooring Maximum of 250 samples can be uploaded at one time with this command Example For a system with MicroCATs 01 02 and 03 which is sampling every 10 minutes 144 times day stop sampling and upload latest data once per day and then resume sampling user input in bold Click Capture on Toolbar and enter desired filename in dialog box S gt 01STOP stop logging for MicroCAT 01 S gt 02STOP stop logging for MicroCAT 02 S gt 03STOP stop logging for MicroCAT 03 S gt 01DN144 upload last 144 samples from MicroCAT 01 S gt STAYON reset time out timer on all MicroCATs so 02 and 03 do not go to sleep while uploading data from 01 S gt 02DN144 upload last 144 samples from MicroCAT 02 S gt STAYON reset time out timer on all MicroCATs so 01 and 03 do not go to sleep while uploading data from 02 S gt 03DN144 upload last 144 samples from MicroCAT 03 S gt STAYON reset time out timer on all MicroCATs so 01 and 02 do not go to sleep while uploading data from 03 S gt RESUMELOGGING simultaneously restart logging for all MicroCATs S gt PWROFF send power off command to all MicroCATs logging not affected 34 Section 4 Deploying and Operating MicroCAT Testing Commands Data obtained with these commands is not stored in FLASH memory iiSS Output averaged raw data average maximum minimum and number of samples FTT Measure temperatur
39. ding if desired Set date and then time Establish setup and logging parameters Deploying multiple MicroCATs verify MicroCAT set to Prompt ID 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 MicroCAT on mooring cable Install Inductive Cable Coupler optional on mooring cable Wire system 5 Ammon r Unpacking MicroCAT Section 1 Introduction Shown below is a typical MicroCAT shipment SBE 37 IM MicroCAT Batteries MicroCAT Software and Electronics Copies of User Manual Software Manuals and User Manual Cell cleaning solution Spare parts kit Triton X Surface Inductive Modem SIM PCB one per mooring optional Inductive Cable Coupler ICC optional with SIM one per mooring I O Cable 9 pin adapter only included with SIM only included with SIM 6 Shipping Precautions gt Assembled battery pack WARNING Do not ship assembled battery pack by commercial aircraft Batteries packed for shipment by commercial aircraft Note All data and setup information is preserved when the batteries are removed However the real time clock does not run Accordingly time and date must be reset after final assembly and before deployment See Section 4 Deploying and Operating MicroCAT Note Bat
40. e or can and Configuration for wiring be supplied on a custom basis Suitable mooring cables use steel wire rope with a polypropylene or polyethylene insulating jacket The SIM operates without data errors using up to 7000 meters 23 000 feet of 3 mm 0 12 inches or larger cable The mooring cable must provide connection to seawater ground below the deepest MicroCAT Terminating the wire with a metallic eye or clevis readily provides this connection The mooring cable must also provide for connection to the SIM e Ina direct connection typical cable to shore applications the bottom end of the wire is grounded to seawater and the top end remains insulated to the connection to the SIM A second wire from the SIM connects to seawater ground completing the circuit e Jn typical surface buoys it is often preferable to connect the jacketed mooring wire to the buoy with a length of chain grounding the jacketed wire to seawater at each end An Inductive Cable Coupler ICC connects the SIM to the jacketed wire above the uppermost MicroCAT and below the point where the wire is grounded SMODEM 2 Surface Inductive SMODEM 1 Modem SIM PCB Surface Inductive Modem SIM PCB bulkhead connector Seawater ground Inductive Cable Seawater Coupler ICC ground SBE 37 IM MicroCAT SBE 37 IM MicroCAT Insulated mooring Insulated mooring 3 cable cable Anchor Seawater ground
41. e MicroCATs 2 Setthe sampling interval for each MicroCAT to the same value 3 Setthe logging start date and time for each MicroCAT to the same value or start logging now using the global RESUMELOGGING command The MicroCAT has a lockout feature to prevent unintended interference with sampling If the MicroCAT is logging or is waiting to start logging the Note iiSTARTLATER command has been sent but logging hasn t started yet Use the fHiSTOP command to only the following commands will be accepted s stop logging e AIL SIM commands e stop waiting to start logging after iiSTARTLATER command e These MicroCAT Communication Microcontroller commands GDATA has been sent DATA ii ID iiDS Once iiSTOP is sent the MicroCAT e These MicroCAT Acquisition Microcontroller commands will accept all commands again iiDS iiDC iiTS iiTSR iiSL iiSLT iiSLTR iiGA iiSACG iiSARG iiSAC iiSAR iiSS iiQS and iiSTOP Example Autonomous Sampling user input in bold Send wakeup tone to all MicroCATs Set the time and date using the global command For each MicroCAT set sample number to 0 to overwrite previous data in FLASH memory take samples every 10 seconds store data in FLASH memory store time and date with samples and start on 10 January 2001 at 12 00 00 Click Connect on Toolbar to wake up all MicroCATs S gt MMDDYY 010501 S gt HHMMSS 120000 S gt 01SAMPLENUM 0 S gt 01INTERVAL 1
42. e and time with each sample This adds 4 bytes per scan x N Do not HiSTARTNOW Start data logging now at rate defined by TiiINTERVAL Data is stored in FLASH memory TiiSTARTMMDDYYzmmddyy Set delayed logging start month day and year This command must be followed by iiSTARTHHMMSS command to set delayed start time iiSTARTDDMMYY ddmmyy Set delayed logging start day month and year This command must be followed by iiSTARTHHMMSS command to set delayed start time iiSTARTHHMMSS hhmmss Set delayed logging start hour minute and second TiiSTARTLATER Start data logging at time set with delayed start date and time commands at rate defined by ftiINTERV AL Data is stored in FLASH memory Example Program MicroCAT 01 to start logging on 20 January 2001 12 00 00 user input in bold S gt 01STARTMMDDYY 012001 S gt 01STARTHHMMSS 120000 S gt 01STARTLATER or S gt 01STARTDDMMYY 200101 S gt 01STARTHHMMSS 120000 S gt 01STARTLATER 32 Section 4 Deploying and Operating MicroCAT Logging Commands continued Notes e Averaged data obtained with iiSACG iiSARG iiSAC or iiSAR commands is not stored in FLASH memory Logging commands related to averaging are typically used only for customized acquisition GDATA and DATAii commands more easily start averaging and get averaged data See MicroCAT Communication Microcontroller Commands for details iiSTOP iiGA i
43. e for 30 samples output converted data Ti TC Measure conductivity for 30 samples output converted data Tii TP Measure pressure for 30 samples output converted data Ti TTR Measure temperature for 30 samples output raw data TiiTCR Measure conductivity for 30 samples output raw data TiiTPR Measure pressure for 30 samples output raw data Tii TR Measure real time clock frequency for 30 samples output data 35 Section 4 Deploying and Operating MicroCAT Calibration Coefficients Commands Notes iiDC Display calibration coefficients Equivalent to Coefficients button e Dates shown are when on Toolbar calibrations were performed Calibration eoe entre Example Display coefficients for MicroCAT 01 which does not initially factory set and x should agree with Calibration have a pressure sensor user input in bold Certificates shipped S gt 01DC with MicroCAT SBE37 IM V 2 1 0011 e See individual Coefficient temperature 08apr 00 Commands below for definitions TAO 9 420702e 05 of the data in the example TA1 2 937924e 04 TA2 3 739471e 06 TA3 1 909551e 07 conductivity 09 apr 00 G 1 036689e 00 H 1 444342e 01 I 3 112137e 04 J 3 005941e 05 CPCOR 9 570001e 08 CTCOR 3 250000e 06 WBOTC 1 968100e 05 PEC 11 apr 00 RTCAO 9 999782e 01 RTCA1 1 749351e 06 RTCA2 3 497835e 08 The individual Coefficient Commands listed below are used to modify
44. easurement acquisition and setup and sampling functions The communication microcontroller supervises communication between the MicroCAT and SIM These two microcontrollers allows for independent control of power usage by the communication and acquisition circuits Acquisition consumes more power but for shorter duration Communication protocols take proportionately more time but can be controlled separately and operate at lower power thus maximizing battery life This also prevents communication protocols from interfering with measurement acquisition timing Commands sent to the SIM can be directed to the SIM the MicroCAT communication microcontroller or the MicroCAT acquisition microcontroller A command prefix ID is used to direct commands to a MicroCAT with the same ID Global commands do not require a prefix and are recognized by all MicroCATSs attached to the same inductive cable Surface Inductive Modem MicroCAT Communication MicroCAT Acquisition SIM Microcontroller Microcontroller Power on Power off Get Data Status Display SIM Set MicroCAT ID Setup Firmware Version Display Firmware version Logging Set Baud SIM to computer Global commands to start logging Operating Set Timeouts get data set clock and reset timeout Data Upload Set Echo parameter counting Testing Calibration Coefficients Timeout Descriptions Both the SIM and the MicroCAT have timeout algorithms SIM timeouts restore control to the computer if no repl
45. ensure proper functioning 1 Install a new desiccant bag each time you open the electronics chamber If a new bag is not available see Application Note 71 Desiccant Use and Regeneration drying If possible dry gas backfill each time you open the housing If you cannot 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 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 Guide the PCB assembly into the housing and push the assembly until the edge connector is fully inserted A gentle resistance can be felt during the last 3 mm 1 s inch of insertion as the PCB assembly mates to the edge connector Drop the Phillips head screw into the hole and tighten gently If it is difficult to align the cards obtain a 305mm 12 in length of 6 32 threaded rod A Thread the end of this rod into the hole at the bottom of the housing next to the edge connector B Slide the PCB assembly s small diameter brass sleeve down the rod The rod will help guide the assembly into the proper position C Push the assembly until the edge connector is fully in
46. erating MicroCAT Data Upload Command Notes To save data to a file click the Send the iiSTOP command before uploading data Capture button on the Toolbar before entering the iiDDb e or iiDNx command e See Data Output Formats after these Command Descriptions e Use the Upload button on the Toolbar or Upload Data in the Data menu to upload data that will be processed by SBE Data Processing Manually entering a data upload command does not produce data with the required header information and required format for processing by our software These commands are included here for reference for users who are writing their own software iiDDb e Upload data from memory scan b to e First sample is number 1 Maximum of 250 samples can be uploaded at one time with this command When Upload button on Toolbar or Upload Data in Data menu are used samples numbering more than 250 are automatically received As the data is uploaded the screen first displays start time sample interval and start sample number These are the start time sample interval and starting sample number for the last set of logged data This information can be useful in determining what data to review Example Upload samples 1 through 200 for MicroCAT 01 user input in bold Click Capture on Toolbar and enter desired filename in dialog box S gt 01DD1 200 iiDNx Upload last x scans from memory Most often use
47. erted data date format dd mmm yyyy conductivity S m temperature precedes conductivity x 2 Output converted data date format mm dd yyyy conductivity mS cm conductivity precedes temperature x Y Output six character sample number number of samples in memory at time sample was taken with data from DATAii iiTS iiSLT iiTSSTX iiSL iiSACG and iSAC x N Do not output sample number x reference pressure gauge in decibars MicroCAT without installed pressure sensor uses this reference pressure in conductivity calculation Entry ignored if MicroCAT includes pressure sensor Quit session and place MicroCAT in quiescent sleep state Main power is turned off Data logging and memory retention are not affected Equivalent to PWROFF command but applies to only the specified MicroCAT Section 4 Deploying and Operating MicroCAT Logging Commands Note 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 Note Do not send iiSAMPLENUM 0 until all data has been uploaded ftiiSAMPLENUM O 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 iiSAMPLENUMc x where x is your estimate of number of samples in memory estimate based on length of deployment and inte
48. from the pressure port The fitting may contain silicon oil from the factory so there may be some spillage 2 Rinsethe pressure port with warm de ionized water to remove any CAUTION M particles debris etc 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 pressure sensor Replacing Batteries See Installing Batteries in Section 3 Preparing MicroCAT for Deployment 1 Remove the modem end cap and battery pack assembly 2 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 3 Remove the existing batteries and replace with new batteries banana plug end 4 first Ensure each battery is fully inserted 4 Reinstall the upper PCB replace the battery pack assembly and reinstall the end cap 47 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 Dev
49. gned a backward connection will prevent communication with the computer Carefully fit the end cap into the housing until the O rings are fully seated Reinstall the flat Phillips head titanium screws to secure the end cap 16 Section 3 Preparing MicroCAT for Deployment Power and Communications Test and Setting MicroCAT IDs 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 Note For testing and setup an ICC is not required even if using the SMODEM 1 SIM Note Important For Normal Deployed operation reinstall the jumper across J5 To Computer Serial Port To Power Supply The power and communications test will verify that the system works prior to deployment Test Setup 1 Surface Inductive If not already installed install SEATERM and other Sea Bird software programs on your computer using the supplied software CD A Insert the CD in your CD drive B Double click on Seasoft Win32 exe C 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 Loop insulated wire through the MicroCAT s modem coupling core to simulate a mooring cable Connect the test wire ends to the SIM s mooring cable terminals JP4 Connection polarity when testing is not important
50. h of Tygon tubing 4 Reinstall the anti foulant device cup and the guard A B C D Carefully reinstall the small section of Tygon tubing and anti foulant device cup on the end of the glass cell Carefully place the guard over the housing aligning all holes Reinstall the two screws attaching each anti foulant device cup to the guard Reinstall the four Phillips head screws attaching the guard to the housing and sensor end cap 5 Prepare for deployment or If being stored gently blow through the cell to remove larger water droplets Do not use compressed air which typically contains oil vapor Replace the protective plugs in the anti foulant device cups 46 Section 5 Routine Maintenance and Calibration Pressure Sensor optional Maintenance lt a At the factory the pressure sensor and pressure port were filled with a silicon oil and a pressure port plug was used to retain the oil The oil transmits hydrostatic pressure to the pressure sensor inside the instrument Because of the viscosity of the silicone oil the oil does not run out of the pressure sensor port plug However due to temperature and pressure cycling over long periods it is normal for some oil to slowly leak out of the plug It is not necessary to refill the oil P Periodically approximately once a year inspect the pressure port to remove any particles debris etc Pressure sensor port plug 1 Unscrew the pressure port plug
51. he date will reset to the last date it was set for with iiIMMDDYY or iiDDMMYY Note See Data Output Formats after these Command Descriptions Setup Commands Note iiTXSAMPLENUMEY could be used to verify that logging is occurring at the correct rate For example while logging 1 Send iiSL command 2 After some interval send iiSL command again Compare change in output sample numbers to expected change based on iiINTERVAL Note When communicating with multiple instruments use the SIM command PWROFF to send a power off command to all MicroCATs simultaneously If the iiQS command is sent sequentially to each MicroCAT activity on the modem link may wake up a quiescent MicroCAT TiiMMDDYY mmddyy iiDDMMYY ddmmyy iiHHMMSS hhmmss Set real time clock month day and year This command must be followed by ii HHMMSS command to set time Set real time clock day month and year This command must be followed by ii HHMMSS command to set time Set real time clock hour minute and second or Example Set current date and time for MicroCAT 01 to 10 January 2001 12 00 00 user input in bold S gt 01MMDDYY 011001 S gt 01HHMMSS 120000 S 401DDMMYY 100101 S gt 01HHMMSS 120000 iiFORMAT x ii TXSAMPLENUM x TiiREFPRESS x iiQS 31 x 0 Output raw hex data for diagnostic use at Sea Bird x 1 default Output conv
52. ices 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 V before proceeding e Use needle nose pliers and carefully break up material It is a violation of US Federal Law e If necessary remove the guard to provide easier access to use this product in a manner inconsistent with its labeling Place the new Anti Foulant Device in the cup 4 Rethread the cap onto the cup Do not over tighten 5 Ifthe 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 Cap 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 g
53. ling 15 replacing 47 shipping precautions 7 C Calibration 49 Cleaning 45 Clock 10 Command summary 53 Commands calibration coefficients 36 data upload 34 descriptions 27 echo 28 get data 29 global 29 logging 32 MicroCAT acquisition microcontroller 30 MicroCAT communication microcontroller 29 MicroCAT ID 29 operating 33 output format 31 power on off 28 setup 31 SIM firmware version 28 status 30 Surface Inductive Modem 28 testing 35 timeout 28 Communication defaults 20 Convert asc to cnv 44 Corrosion precautions 45 D Data output format 31 37 Data processing 9 44 installation 17 Deployment 39 preparing for 15 setup 38 Description 8 Dimensions 11 E Electronics disassembly reassembly 52 F Format data output 37 Functional description 51 G Glossary 50 Guard removal 48 I ICC See Inductive Cable Coupler ID setting 17 Inductive Cable Coupler 14 39 L Limited liability statement 2 M Maintenance 45 Memory 10 Modes See Sampling modes Mooring cable 14 O Operation description 22 P Parts replacement 63 Plugs 39 Pressure sensor maintenance 47 Q Quick start 5 R Recovery physical handling 40 uploading data 41 Replacement parts 63 64 S Sample timing 12 Sampling modes 23 autonomous 24 averaging 26 combo 25 polled 23 SBE Data Pro
54. ll poison control center or doctor immediately for treatment advice If swallowed Have person drink several glasses of water Do not induce vomiting Do not give anything by mouth to an unconscious person Hold eye open and rinse slowly and gently with water for 15 20 If in eyes 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 7 14 g Sea Bird Electronics Inc EPA Registration No 74489 1 1808 136 Place Northeast EPA Establishment No 74489 WA 1 Bellevue WA 98005 60 Appendix V AF24173 Anti Foulant Device PRECAUTIONARY STATEMENTS HAZARD TO HUMANS AND DOMESTIC ANIMALS DANGER Corrosive Causes irreversible eye damage and skin burns Harmful if swallowed Harmful if absorbed through the skin or inhaled Prolonged or frequently repeated contact may cause allergic reactions in some individuals Wash thoroughly with soap and water after handling PERSONAL PROTECTIVE EQUIPMENT USER SAFETY RECOMMENDATIONS Users should Remove clothing immediately if pesticide gets inside Then wash thoroughly and put on clean clothing Wear protective gloves
55. lobal Commands Notes e DDMMYY and MMDDYY commands are equivalent Either can be used to set the date e If the MicroCAT battery pack has been removed the date and then time must be reset e Always set both 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 Note If the MicroCAT is logging taking a sample every iiINTERVAL seconds sending GDATA resets the logging time base The next sample is taken at the current time plus iiINTERVAL 2 This reset occurs each time that GDATA is sent See the example MMDDYY mmddyy DDMMYY ddmmyy HHMMSS hhmmss GDATA Set real time clock month day and year for all MicroCATs This command must be followed by HHMMSS to set time Set real time clock day month and year for all MicroCATs This command must be followed by HHMMSS to set time Set real time clock hour minute and second for all MicroCATs Command all communication microcontrollers to get average data from acquisition units and start next averaging cycle Communication microcontrollers hold averaged data in a buffer until receiving DATAii Example iiINTERVAL 600 10 minutes Hr min sec 00 00 00 iSTARTNOW received sample 00 10 00 Sample 00 13 00 GDATA received average 2 data sets 00 18
56. lugs in the anti foulant device cups Acid Cleaning visible deposits or marine growth on inside of cell Do not clean with acid more than once per week 1 Remove the MicroCAT guard A B G Remove the two screws attaching each anti foulant device cup to the guard Remove the four Phillips head screws attaching the guard to the housing and sensor end cap Gently lift the guard away 2 Prepare for cleaning A B C D Remove the small section of Tygon tubing and anti foulant device cup from one end of the cell Place a 0 6 m 2 ft length of 7 16 inch ID 9 16 inch OD Tygon tubing over the end of the cell Clamp the MicroCAT so that the cell is vertical with the 0 6 m 2 ft Tygon tubing at the bottom end Loop the Tygon tubing into a U shape and tape the open end of the tubing in place at the same height as the top of the glass cell 3 Clean the cell A w 2 n T m Pour muriatic acid 37 HCl into the open end of the tubing until the cell is nearly filled Let it soak for 1 to 2 minutes only Drain the acid from the cell and flush for 5 minutes with warm not hot clean de ionized water Rinse the exterior of the instrument to remove any spilled acid from the surface Fill the cell with a 1 solution of Triton X 100 included with shipment and let it stand for 5 minutes Drain and flush with warm clean de ionized water for 1 minute Carefully remove the 0 6 m 2 ft lengt
57. m Descriptions and examples of the sampling modes follow for a system with three MicroCATs IDs 01 02 and 03 on a mooring cable Note that the MicroCAT s response to each command is not shown in the examples Polled Sampling Operating commands The MicroCAT takes one sample of data and sends the data to the SIM Storing of data in the MicroCAT s FLASH memory is dependent on the particular command used Note that it is not possible to synchronize the data samples from each MicroCAT in polled sampling Example Polled Sampling user input in bold Send wakeup tone to all MicroCATs Command each MicroCAT to take a sample and send converted data to SIM Send power off command to all MicroCATs Click Connect on Toolbar to wake up all MicroCATs S gt 01TS S gt 02TS S gt 03TS S gt PWROFF 23 Section 4 Deploying and Operating MicroCAT Autonomous Sampling Logging commands The MicroCAT wakes up samples data at pre programmed intervals stores the data in its FLASH memory and powers off enters quiescent state The MicroCAT does not transmit data to the SIM Logging is started with RESUMELOGGING iSTARTNOW or iiSTARTLATER and is stopped with iSTOP To synchronize the data samples for each MicroCAT in Autonomous Sampling see SBE 37 IM MicroCAT Specifications in Section 2 Description of MicroCAT for the real time clock specifications 1 Senda global command to set the date and then time for all th
58. minals Installing Batteries 1 Remove the modem end cap A Wipe the outside of the modem end cap and housing dry being careful to remove any water at the seam between them B Remove the two flat Phillips head titanium machine screws Do not remove any other screws from the housing C Remove the end cap by pulling firmly and steadily on the plastic cable mounting bracket inductive coupler 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 loosen it D The end cap is electrically connected to the electronics with a 3 pin Molex connector Holding the wire cluster near the connector pull gently to detach the female end of the connector from the pins E Remove any water from the O ring mating surfaces inside the housing with a lint free cloth or tissue F Put the end cap aside being careful to protect the O rings from damage or contamination 15 Section 3 Preparing MicroCAT for Deployment 2 Remove the battery pack assembly from the housing Small screws Battery pack assembly Battery Remove the large Phillips head screw and lock washer from the upper PCB 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 4 Insert each 9 volt battery onto the lower PCB one at a time banana plug en
59. month day year Must follow with iiHHMMSS TiiDDMMYY ddmmyy Set real time clock day month year Must follow with iiHHMMSS TiiHHMMSS hhmmss Set real time clock hour minute second iiFORMAT x x 0 output raw hex data intended for diagnostic use at Sea Bird x 1 output converted data date dd mmm yyyy conductivity S m temperature precedes conductivity x 2 output converted data date mm dd yyyy conductivity mS cm conductivity precedes temperature iiT XSAMPLENUM x x Y Output six character sample number with data from DATAii iiTS iiSLT iTSSTX iSL iSACG and iiSAC x N Do not output sample number TiiREFPRESS x x reference pressure gauge in decibars used for conductivity computation for MicroCAT without pressure sensor iiQS Enter quiescent sleep state Main power turned off but data logging and memory retention unaffected Logging iiINTERVAL x x interval seconds between samples 10 32767 When commanded to start sampling with iSTARTNOW or iiSTARTLATER MicroCAT takes sample stores data in FLASH memory and powers down at x second intervals iiSAMPLENUM x x sample number for first sample when logging begins After all previous data has been uploaded set to 0 before starting to log to make entire memory available for recording If not reset to 0 data stored after last sample iiSTORETIME x x Y store
60. n in ote me etd pe ER ehe E PH b d 22 Timeout Descriptions nerea eE ener nnne 22 Sampling Modes 5 eri beet e n OR EROR 23 Polled Sampling Operating commands eee 23 Autonomous Sampling Logging commands eee 24 Combo Sampling 2 oh ned orc UP ERR EE OP iz E 25 Averaging Sampling sh beastie CREDEREM Ric had 25 Command Descrptions iue p ri p OR ERE ERIT 27 SIM Commands se nepote rette Pt erret e cip 28 MicroCAT Communication Microcontroller Commands 29 MicroCAT Acquisition Microcontroller Commands 30 Data Output Formats nd Recte ete p er noes 37 Setup for Deployment nter cte tec irte ER ee tet doce veat 38 Attaching MicroCAT to Mooring Cable eese 39 System Installation and Wiring eene 39 Installing Optional Inductive Cable Coupler ICC 39 RECOVELY iie seo ty eni eU ea oe ere 40 Physical Handling iren eG edente eee a eain 40 Uploading D t ont ete E anon eroe reg 41 Section 5 Routine Maintenance and Calibration ees 45 COLTOSION Precautions snider eee erorri ie ee E POT ERE ere ERR et 45 Conductivity Cell Maintenance esee 45 Routine Rinsing after Recovery esee 45 Gle mng titus BR eee tee me Rope E 45 Pressure Sensor optional Maintenance essen 47 Replacing Batteries ini enp ep
61. n drift in conductivity sensors is the fouling of the cell by chemical or biological deposits Fouling changes the cell geometry resulting in a shift in cell constant Accordingly the most important determinant of long term sensor accuracy is the cleanliness of the cell We recommend that the conductivity sensors be calibrated before and after deployment but particularly when the cell has been exposed to contamination by oil slicks or biological material Temperature Sensor Calibration The primary source of temperature sensor calibration drift is the aging of the thermistor element Sensor drift will usually be a few thousandths of a degree during the first year and less in subsequent intervals Sensor drift is not substantially dependent upon the environmental conditions of use and unlike platinum or copper elements the thermistor is insensitive to shock Pressure Sensor optional Calibration The optional strain gauge pressure sensor is a mechanical diaphragm type with an initial static error band of 0 05 Consequently the sensor is capable of meeting MicroCAT s 0 10 error specification with some allowance for aging and ambient temperature induced drift 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
62. o not echo characters received MMDDYY mmddyy from computer Set real time clock month day year for all MicroCATs Follow with HHMMSS or it will not set date DDMMYY ddmmyy Set real time clock day month year for all MicroCATs Follow with HHMMSS or it will not set date HHMMSS hhmmss Set real time clock hour minute second for all MicroCATs Command all MicroCAT Global communication microcontrollers to get average data from acquisition units and GDATA start next averaging cycle MicroCAT communication microcontrollers hold averaged data in a buffer until receiving DATAii command STAYON Command all MicroCATS to reset counting for 2 minute timeout Simultaneously command all RESUMELOGGING MicroCATS to start logging Get averaged data obtained with Get data DATAii GDATA command from MicroCAT with ID ii ID Get MicroCAT ID 0 99 IDzii Set MicroCAT ID to ii 0 99 MicroCAT ID only 1 MicroCAT can be Command must be sent twice on line or all MicroCATs because computer responds by will have same ID requesting verification Firmware tiiDS Display MicroCAT communication version microcontroller firmware version 53 Appendix Ill Command Summary FUNCTION CATEGORY COMMAND DESCRIPTION MicroCAT Acquisition Microcontroller Commands ii MicroCAT ID Status iiDS Display status Setup TiiMMDDYY mmddyy Set real time clock
63. of Contents Section 1 INntroduction scccssssersessssersessrsessessssessessssessessesessessssessssessesees 5 About tins Manual serasi moiit o onne isos esa a e ec ete 5 How to Contact Sea Bird onsen Sina i onse rennen nennen nenne 5 QUICK Stattzs cue tta ee SCAG ac ates detis m Rie Ass TEESE 5 Unpacking MicroC A P see rtc entere R E E EA BEER h 6 Shipping Precautions so et ite pere ete e t es E ES 7 Section 2 Description of MicroCAT 4 eese esee reete eee eene enne en aetas tn aetas 8 System Description 3 RIO Ho gU AME 8 SpecifiCatiOns dp Ue leap det e PAM Tec A a fe Re P edet 10 Dimensions 3 oni erect dere rfe teaser te ette eere ee ey ee eae dede en 11 Sample Timing hot rete ete Rete ree aes 12 Battery Endurance d ere eerte ee idee aeree ue ch eee ue E SA 12 Surface Inductive Modem SIM sess 13 Mooring Cable and Wiring Requirements eere 14 Section 3 Preparing MicroCAT for Deployment eee 15 Battery Installation rere donent Fer Pate et EH 15 Description of Batteries and Battery Pack see 15 Installing Batteries need Bp e ted te eeepc 15 Power and Communications Test and Setting MicroCAT IDs 17 Test SetUp St n ara euge tei dae eene eins 17 Test and Set MicroCAT ID sse nenne 18 Section 4 Deploying and Operating MicroCAT eere 22 Operation Descriptio
64. on by clicking Status on the Toolbar The display looks like this SBE 37 IM V 2 1 SERIAL NO 0069 07 20 2000 11 55 19 not logging received stop command sample interval 20 seconds samplenumber 52 free 127948 store time with each sample transmit sample number A D cycles to average 4 reference pressure 0 0 db temperature 19 48 deg C 8 Click the Upload button on the Toolbar to upload stored data SEATERM responds as follows A SEATERM sends the status iiDS command displays the response and writes the command and response to the upload file This command 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 iiDC command displays the response and writes the command and response to the upload file This command displays the MicroCAT s 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 Inthe Open dialog box enter the desired upload file name and click OK The upload file has a asc extension F SEATERM sends the data upload command iiDDb e G When the data has been uploaded SEATERM sh
65. os are suppressed except for one zero to the left of the decimal point The MicroCAT s pressure sensor is an absolute sensor so its raw output includes the effect of atmospheric pressure 14 7 psi As shown on the Calibration Sheet Sea Bird s calibration and resulting calibration coefficients is in terms of psia However when outputting pressure in decibars the MicroCAT outputs pressure relative to the ocean surface i e at the surface the output pressure is 0 decibars The MicroCAT uses the following equation to convert psia to decibars pressure db pressure psia 14 7 0 689476 Each scan ends with a carriage return lt CR gt and line feed lt LF gt The exact format of the output varies depending on the command sent the user s selection for the ii1FORMAT command and whether pressure and date and time are stored with the data e iiFORMAT 0 raw hexadecimal data intended only for diagnostic use at Sea Bird e fiiFORMAT 1 or 2 see below Data Output after Sending Get Data DATAii Command Date and time are sent only if iiSTORETIME Y The six digit sample number is the number of samples in FLASH memory at the time the command to take a sample the GDATA command was sent e HiiFORMAT 1 default Conductivity S m li SSSSS ttt tttt cc ccccc pppp ppp dd mmm yyyy hh mm ss sample n e iiFORMAT 2 Conductivity mS cm ii SSSSS CCC CCCC ttt tttt pppp ppp hh mm ss mm dd yyyy
66. ows the S prompt 43 Section 4 Deploying and Operating MicroCAT 9 Ensure all data has been uploaded from the MicroCAT by reviewing Notes e The entered deployment pressure can differ from the reference pressure entered prior to deployment using the iiREFPRESS command 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 for the salinity calculation than may have been available prior to deployment e f 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 Notes To prepare for re deployment 1 After all data has been uploaded send the iiSAMPLENUM 0 command If this command is not sent new data will be stored after the last recorded sample preventing use of the entire memory capacity 2 Dooneofthe following e Send the iiQS command 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 The quiescent current is only 10 microamps so the ba
67. p and Configuration Appendix IV SIM Hookup and Configuration TRI 13 PERF 80a fe pERGRSHIID a PEE e EE oe zen Pins E 1 JEU orp xs Ham JP4 LEER CAA am ss da we 2 ower 7 25 voc L S KJ m LIAE EB CB Ee E u Piae PREFERIR a eee 333 Pu i 8 i IE ni 17 A WHER SS le zm ds AUR b agile nq ms Lamm La a e as mni J4 Photo shows SIM SMODEM 2 for use without Inductive Cable Coupler Standard SIM SMODEM 1 for use with Inductive Cable Coupler is similar but does not include TR1 Dimensions PCB 109 mm x 147 5 mm 4 4 x 5 3 4 inches Mounting holes 90 5 mm x 138 1 mm 3 16 x 5 7 16 inches H 10150 Power Connection The SIM can be configured to power up in either of the following two modes e Normal Power Switching factory setting The SIM runs when power is applied Set up the SIM as follows 1 Connect Power Common to JP1 pin 1 2 Connect 7 25 VDC to JP1 pin 2 3 Verify there is no connection to JP1 pin 3 4 Verify jumper is across J3 e Logic Level Controlled Power Switching Power is always applied to JP1 pins 1 and 2 Voltage applied to JP1 pin 3 VCNTL switches power to the SIM Set up the SIM as follows 1 Connect Power Common to JP1 pin 1 Note If VCNTL 1 volt SIM is Off consuming 100 microamps If VCNTL gt 2 volts SIM is On 2 Connect 7 25 VDC to JP1 pin 2 3 Remove jumper on J3 57
68. plugs in the anti foulant device cups If the cell is not rinsed between uses salt crystals may form on the platinized electrode surfaces When the instrument is used next sensor accuracy may be temporarily affected until these crystals dissolve Cleaning Cell cleaning removes foreign material coating the inside of the cell partially restoring the cell to the original factory calibration Decide whether to clean the cell after a deployment based on the following e Do not clean the cell if you will be sending the MicroCAT to Sea Bird for a post cruise calibration to establish the drift during the cruise e Clean the cell if you will not be performing a post cruise calibration to establish the drift 45 Section 5 Routine Maintenance and Calibration 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 WARNING Avoid breathing the acid fumes Routine Cleaning inside of cell not visibly dirty 1 Fill the cell with a 1 solution of Triton X 100 included with shipment and let it soak for 30 minutes 2 Drain and flush with warm clean de ionized water for 1 minute Then Prepare for deployment or If being stored drain and gently blow through the cell to remove larger water droplets Do not use compressed air which typically contains oil vapor Replace the protective p
69. recording If iiSAMPLENUM is not reset to 0 data will be stored after the last recorded sample B Set the date and then time Note that the date and time can be set Notes globally for all MicroCATs online MMDDYY or DDMMYY to Ae bs re set date HHMMSS to set time or individually for each MicroCAT m stbe i eset iIMMDDYY or iDDMMYY to set date TiHHMMSS to e Always set both date and set time To synchronize autonomous sampling for a system with then time If a new date is multiple MicroCATs on a mooring cable set the date and time entered but not a new time the globally with all the MicroCATs online see Autonomous Sampling new date will not be saved If a in this section for details on synchronization new time is entered without first entering a new date the date C Establish the setup and logging parameters will reset to the last date it was set for win MMDD ONS D If the system will have multiple MicroCATs or other inductive DDMMYY ZiiMMDDYY or A a n 2 siiDDMMYY instruments on the mooring cable verify the MicroCAT is set to Prompt ID to allow use of the Toolbar buttons and Menus 1 Inthe Configure menu select SBE 37 2 Click on the COM Settings tab 3 For Modem RS485 ID click on Prompt ID 4 Click OK or Save As E Use one of the following sequences to initiate logging e iSTARTNOW to start logging now taking a sample every TiINTERVAL seconds e iSTARTMMDDYY ttiiSTARTHHMMSS and TiiSTARTLATER to
70. rrent is drawn for approximately 0 5 seconds per MicroCAT on the mooring Each MicroCAT on the mooring draws this current while any of the MicroCATS are being queried to transmit data Other interrogation schemes require more time e Quiescent current is less than 100 microamps 0 9 AH per year So battery endurance is highly dependent on the user programmed sampling scheme An example is shown below for 1 sampling scheme Example 10 MicroCATs will be deployed on a mooring They will be set up to sample autonomously every 10 minutes 6 times hour and the average of the samples will be requested by the computer every hour How long can the instruments be deployed given a conservative assumption of 5 AH battery capacity Sampling current consumption 30 mA 3 seconds sampling time 0 090 amp sec sample In 1 hour sampling consumption 6 samples 0 090 amp sec sample 0 54 amp seconds hour Communication current consumption query 5 mA 0 5 seconds MicroCAT to be queried 10 MicroCATs on mooring 0 025 amp seconds hour Quiescent current 100 microamps 0 1 mA In 1 hour quiescent current consumption 0 1 mA 3600 seconds hour 0 36 amp seconds hour In 1 hour the MicroCAT will take 6 samples and transmit average to computer Current consumption hour 0 54 amp sec 0 025 amp seconds 0 36 mA 0 925 amp sec Capacity 5 amp hours 3600 seconds hr 0 925 amp sec hour 19459 hours 810 days 2 2 years
71. rrupt and end current activity such as Stop logging 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 Section 3 Preparing MicroCAT for Deployment 3 Inthe Configure menu select SBE 37 The dialog box looks like this Computer COM y Interface for communication port baud rate between SIM and MicroCAT data bits and parity for communication cM computer COMM Porl Baud Rate Mode e a ID ah multiple an S s inductive modem 2600 C RS 232 Full Duplex instruments are on line C RS 485 Half Duplex for example when Yr a ce ME deployed If set to 2 Inductive Modem Prompt ID the system requests the user to input the instrument ID every r Modem RS4851D time a command is sent via a Toolbar button f Prompt Ib or menu Automatically get ID Automatically get ID when only one inductive modem iinstrument is on line for example when testing an instrument Parity lr Even Odi V None Cael Save As Desa Help Lx Make the selections in the Configuration Options dialog box COMM Port COM 1 through COM 10 as applicable Baud Rate 1200 2400 4800 or 9600 as applicable Data Bits 8 Parity None Mode Inductive Modem Modem RS485 ID
72. 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 Wash hands with soap and water before eating drinking chewing gum using tobacco or using the toilet ENVIRONMENTAL HAZARDS Do not discharge effluent containing this product into lakes streams ponds estuaries oceans or other waters unless in accordance with the requirements of a National Pollutant Discharge Elimination System NPDES permit and the permitting authority has been notified in writing prior to discharge Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority For guidance contact your State Water Board or Regional Office of EPA This material is toxic to fish Do not contaminate water when cleaning equipment or disposing of equipment washwaters PHYSICAL OR CHEMICAL HAZARDS Do not use or store near heat or open flame Avoid contact with acids and oxidizers DIRECTIONS FOR USE It is a violation of Federal Law to use this product in a manner inconsistent with its labeling For use only in Sea Bird Electronics conductivity sensors Read installation instructions in the applicable Conductivity Instrument Manual 61 Appendix V AF24173 Anti Foulant Device STORAGE AND D
73. rval between samples 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 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 iiSTARTDDMMYY and iiSTARTMMDDYY commands are equivalent Either can be used to set the delayed start date Notes e After receiving iiSTARTLATER the MicroCAT displays not logging waiting to start in reply to the Display Status iiDS command Once logging has started the iiDS reply indicates logging data If the delayed start time has already passed when iiSTARTLATER is received the MicroCAT executes iiSTARTNOW Logging commands direct the MicroCAT to sample data at pre programmed intervals and store the data in its FLASH memory iiINTERVAL x x interval seconds between samples 10 32767 When commanded to start sampling with iiSTARTNOW or TiiSTARTLATER MicroCAT takes a sample stores data in FLASH memory and powers down at x second intervals iiSAMPLENUM x x sample number for first sample when logging After all previous data has been uploaded from MicroCAT set sample number to 0 before starting to log to make entire memory available for recording If iiSAMPLENUM is not reset to 0 data will be stored after last recorded sample iiSTORETIME x x Y Store dat
74. serted After the PCB assembly has been fully inserted remove the rod D Drop the Phillips head screw into the hole and tighten gently Reinstall the battery pack and modem end cap following instructions in Installing Batteries in Section 3 Preparing MicroCAT for Deployment 52 Appendix Ill Command Summa Appendix Ill Command Summary Note See Command Descriptions in Section 4 Deploying and Operating MicroCAT for detailed information and examples FUNCTION CATEGORY COMMAND DESCRIPTION SIM Commands MicroCAT Communication Microcontroller Commands PWRON Send wakeup tone to all MicroCATs PWROFF Send power off command to all MicroCATs MicroCATs enter quiescent sleep state Main power turned off but data logging and memory retention unaffected DS Display SIM firmware version and status BAUD x x baud rate between SIM and computer controller 1200 2400 4800 or 9600 Default 9600 DATANNMAX x x timeout milliseconds that applies to DATA ii only If no reply received within x 0 65535 control returned to computer and other commands can be sent Default 1000 milliseconds x timeout seconds that applies to all other commands If no reply received RELAYMAX x within x 0 3276 control returned to computer and other commands can be sent Default 20 seconds ECHOON Echo characters received from computer default ECHOOFF D
75. stal 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 95 98 NT 2000 XP software Notes package SEASOFT Win32 which includes E Boc are ies e PR MU EM program for easy communication and SEASOFT DOS which can be used with the MicroCAT e SBE Data Processing program for calculation and plotting of However this manual details conductivity temperature optional pressure and derived variables such as only the use of the Windows salinity and sound velocity software with the MicroCAT Help files provide detailed information on the use of SEATERM and SBE Data Processing Separate software manuals on CD ROM contain detailed information on the setup and use of SBE Data Processing and SEASOFT DOS Section 2 Description of MicroCAT Specifications Note Pressure ranges are expressed in meters of deployment depth capability Temperature Conductivity Optional C S m Pressure 0 to full scale range Measurement 5 to 35 0 to 7 20 100 350 Range 0 to 70 mS cm 1000 2000 3500 7000 meters T 0 0003 0 1 of full scale Initial Accuracy 0 002 0 003 mS cm range Typical Stability 0 0002 0 0003 0 004 of full scale per month i 0 003 mS cm range 0 00001 0 002 of full scale Resol
76. status grayed Upload out if not 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 Note Toolbar select View Toolbar in the View menu Grayed out Toolbar Once the system is configured and buttons are not applicable connected Steps 3 through 5 e Command Data Echo Area Echoes a command executed using a below to update the Status bar Menu or Toolbar button as well as the instrument s response e on the Toolbar click Status or Additionally a command can be manually typed in this area from the e from the Utilities menu select available commands for the instrument Note that the instrument must P satus be awake for it to respond to a command use the Connect button on command which displays in the the Toolbar to wake up the instrument Command Data Echo Area and e Status bar Provides status information To display or hide the Status updates the Status bar bar select View Status bar in the View menu 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 genera
77. te a command 18 Following are the Toolbar buttons applicable to the MicroCAT Section 3 Preparing MicroCAT for Deployment Toolbar Description Equivalent Buttons Command Re establish communications by sending wakeup tone to all MicroCATs Computer responds with Connect S gt prompt MicroCATs go to sleep after PWRON 2 minutes without communication from computer have elapsed ae Display instrument setup and status logging iiDS number of samples in memory etc Coefficients Display calibration coefficients iiDC 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 iiDDb e utility can use to allow for post processing by use Upload SBE Data Processing Uploaded data has asc key if you will Upload extension Before using Upload be processing e Configure upload and header parameters in data with SBE Configure menu Data e Send iiSTOP command to stop logging Processing oo Convert uploaded asc data file to cnv data file which can be processed by SBE Data Processing Perform one or more diagnostic tests on MicroCAT Diagnostic eso accessed in this DS Zu Diagnostics Tii TS and manner are non destructive they do not write iTSR over any existing instrument settings Inte
78. teries must be removed before returning the instrument to Sea Bird Do not return used batteries to Sea Bird when shipping the MicroCAT for recalibration or repair Section 1 Introduction The MicroCAT was shipped from the factory with the batteries packaged separately within the shipping box not inside the MicroCAT Before attempting to communicate with the MicroCAT the batteries must be installed following the instructions in Section 3 Preparing MicroCAT for Deployment IMPORTANT NOTE Depending on their classification the shipment of lithium batteries is subject to safety regulation concerning Dangerous Goods or Hazardous Material imposed by the U S Department of Transportation DOT and the International Air Transportation Association IATA Other countries may also have their own regulations The MicroCAT uses a lithium battery pack comprised of six parallel 9 volt batteries Each of the three cells in the 9 volt battery contains less than 2 grams of lithium In this form the batteries are not considered Dangerous Hazardous Goods and may be shipped without restriction if they are NOT connected together and they are packaged to prevent accidental shorting of the battery contacts When two or more 9 volt battery sticks are assembled into the instrument s battery pack either inside or outside the instrument housing they are connected in parallel and ARE classified as Dangerous Hazardous Goods The assembled battery pack does
79. the data can be uploaded 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 with batteries in place and in a quiescent state iiQS or PWROFF so that date and time are retained Because the quiescent current required is less than 100 microamps the batteries can be left in place without significant loss of capacity less than 20 loss per year 40 Section 4 Deploying and Operating MicroCAT Uploading Data bn may be uploaded during 1 Double click on SeaTerm exe The display shows the main screen deployment or after recovery If uploading after recovery 1 Wire the MicroCAT and SIM as described in Power and Communications Test and Setting MicroCAT IDs in Section 3 Preparing MicroCAT for Deployment 2 Set Modem RS485 ID on COM Settings tab of SBE 37 Configuration Options dialog box to Automatically get ID If uploading during deployment Leave Modem RS485 ID on Prompt ID SEATERM will prompt you for the MicroCAT ID when you use Toolbar or 2 Inthe Configure menu select SBE 37 Click on the Upload Settings tab menu shortcuts for commands The dialog box looks like this SBE 37 Configuration Options Baud rate for uploading data from
80. titanium Secures mounting clamp 4 Washer 4 split ring For screw 30900 secures 30633 eae E 4 lock titanium mounting clamp 1 LE 30634 Washer 4 flat For screw 30900 secures 4 titanium mounting clamp 31019 O ring 2 008 N674 70 For Screw 30900 retains 4 mounting clamp hardware 30859 Machine screw 8 32 x Secures housing to modem 2 3 3 FH PH titanium end cap Parker 2 033E515 80 Modem end cap and sensor 30857 4 O ring end cap O ring 30149 Machine screw 6 32 x Secures battery pack 1 5 s PH stainless steel assembly to battery pylon Washer 6 split ring Forse 017 30243 secures battery pack 1 lock stainless steel assembly to battery pylon 30357 Machine screw 2 56 x Secures battery pack s upper 2 1 4 PH stainless steel PCB to brass sleeve Washer 2 split ring Forse 30986 lock stainl teel secures battery pack s upper 2 a AESA SES PCB to brass sleeve 50243 Lithium battery set power MicroCAT 1 6 sticks 50091 Triton X 100 Conductivity cell cleaning 1 solution 9 pin to 25 pin I O 80677 Gable 1 8m 6t dong From SIM to computer 1 x Connects 80677 I O cable to 17130 25 pin to 9 pin adapter 9 pin COM port on computer 1 Spare hardware Assorted hardware and 60033 O ring kit O rings 63 Index Index A About Sea Bird 5 Anti Foulant Device 39 59 removal before shipping to Sea Bird 49 replacing 48 B Batteries 10 38 description 15 endurance 12 instal
81. tteries can be left in place without significant loss of capacity e Use the iiSTARTNOW command to begin logging immediately e Set a date and time for logging to start using the iiSTARTMMDDYY or iiSTARTDDMMYY iiSTARTHHMMSS and iiSTARTLATER commands the data A 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 the Convert button on the Toolbar The Convert dialog box appears In the dialog box enter the input asc file name and the desired output cnv file name file names must include the path If desired click Start new year at Julian time 0 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 If clicked a field for the deployment pressure appears in the dialog box enter the pressure in decibars at which the MicroCAT was deployed Convert will add a pressure column to the data the entered deployment pressure will be inserted in every row of the pressure column in the output cnv file B Use SBE Data Processing to process the cnv data See the software manual on CD ROM or Help files for details 44 Section 5 Routine Maintenance and Calibr
82. uard to the housing and sensor end cap 3 Gently lift the guard away 48 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 Routine Maintenance and Calibration Sea Bird sensors are calibrated by subjecting them to known physical conditions and measuring the sensor responses Coefficients are then computed which may be used with appropriate algorithms to obtain engineering units The 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 calibratio
83. ue averaging iiTS Take sample and output converted data Data not stored in FLASH memory Take sample and output raw data Data ITSR not stored in FLASH memory Output converted data from last sample iiSLT and then take a new sample Data not Overatin stored in FLASH memory p 8 Output raw data from last sample and iSLTR then take new sample Data not stored in Continued FLASH memory FLASH iiTSSTX ake sample store data in iS memory and output converted data Acquisition Microcontroller Output converted data from last sample iiSL taken with either Operating Command Commands or Logging Commands ii MicroCAT Upload data beginning with iiDDb e scan b ending with scan e Send iiSTOP before sending Data Upload this command Upload last x scans from memory Send FIIDNx iiSTOP before sending this command iiSS Send averaged raw data B Measure temperature for add 30 samples output converted data Measure conductivity for TC 30 samples output converted data HiTP Measure pressure for 30 samples output converted data Testin g HiTTR Measure temperature for 30 samples output raw data iiTCR Measure conductivity for 30 samples output raw data iiTPR Measure pressure for 30 samples output raw data iiTR Measure real time clock frequency for 30 samples output data 55 Appendix Ill Command Summary
84. ure and optional date and time SEASOFT DOS Sea Bird s complete DOS software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 Sea Bird s complete Win 95 98 NT 2000 XP software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 includes SEATERM SeatermAF SEASAVE SBE Data Processing and Plot39 SEATERM Sea Bird s Win 95 98 NT 2000 XP software used to communicate with the MicroCAT SIM Surface Inductive Modem PCB used to interface between the computer serial port and SBE 37 IM MicroCATs or other compatible sensors TCXO Temperature Compensated Crystal Oscillator Triton X 100 Concentrated liquid non ionic detergent used for cleaning the conductivity cell 50 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 used in the 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
85. ution 0 0001 0 0001 mS cm range 0 to 6 physical Sensor calibration over Ambient pressure to 1 to 32 the range 2 6 to full scale range in Calibration 6 S m plus zero 5 steps conductivity air 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 Memory Space Parameters Total Number of Samples C and T 410 000 C T and P 290 000 C T and time 225 000 C T P and time 185 000 Real Time Clock Watch crystal type 32 768 Hz corrected for drift and aging by comparison to MicroCAT counter time base to produce overall 5 ppm accuracy 2 6 minutes year Nominal 7 2 Ampere hour pack consisting of six 9 volt lithium batteries providing sufficient capacity for more Standard than 100 000 samples When removed from MicroCAT Internal Batteries and battery pack and batteries packed separately batteries can be shipped without hazardous material restrictions Quiescent Current 100 microamps Communications Current 5 0 milliamps Power Requirements Acquisition Current 30 milliamps Acquisition Time 3 seconds per sample Communications Time 0 5 seconds per sample Housing Titanium pressure case rated at 7000 meters 23 000 feet Weight
86. without pressure sensor In water 2 4 kg 5 3 Ibs In air 4 0 kg 8 8 Ibs 10 Section 2 Description of MicroCAT Dimensions Dimensions in millimeters inches Pressure port 62 2 2 45 Diameter 526 5 20 73 11 Section 2 Description of MicroCAT Sample Timing e Power On Time for each sample while logging With Pressure 2 7 seconds Without Pressure 2 2 seconds e Take Sample Timing which is the end of the Take Sample command iiTS or iiTSR to the beginning of the reply With Pressure 1 6 seconds Without Pressure 1 2 seconds e Communications Timing which is the time to request and transmit data from each MicroCAT to the computer controller 0 5 seconds Battery Endurance Notes The battery pack has a nominal capacity of 7 2 AH However for planning e If the MicroCAT is logging purposes Sea Bird recommends using a conservative value of 5 AH data and the battery voltage is less than 6 15 volts for Current consumption is as follows ten consecutive scans the MicroCAT halts logging and Sampling acquisition current is 30 mA for 3 seconds per sample displays a low battery Communications current is 5 mA Assuming the fastest practical indication in the data interrogation scheme wake all MicroCATS on mooring send GDATA See Specifications above command send DATAii command to each MicroCAT and power off all for data storage limitations MicroCATS the communications cu
87. y is received from the MicroCAT for example upon sending an illegal command within a specified length of time This allows new commands to be sent There are two user programmable SIM timeouts e DATANNMAX timeout for the DATAii command only Default is 1000 milliseconds Note e RELAYMAX timeout for all other commands Default is 20 seconds lf power i removed frorm the SIM When using RS 232 between the SIM and computer control of the SIM can be re established sooner than the timeout by pressing the Esc key and then the Enter key When the S gt prompt is displayed new commands can be sent the SIM timeouts reset to their default values The MicroCAT timeout powers down the MicroCAT communication circuits if the MicroCAT does not receive a command for two minutes to prevent battery exhaustion To re establish control send the PWRON command or click the Connect button on the Toolbar 22 Section 4 Deploying and Operating MicroCAT Sampling Modes The MicroCAT has four basic sampling modes for obtaining data on temperature conductivity and optional pressure e Polled Sampling e Autonomous Sampling e Combo Sampling e Averaging Sampling Sampling and logging commands can be used in various combinations and in one or more sampling modes to provide a high degree of operating flexibility Review the operation of the four basic sampling modes and the commands described in Command Descriptions before setting up your syste

SBE 37-IM MicroCAT User`s Manual

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