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SBE 37-SIP MicroCAT User Manual

1. SEATERM Sea Bird s Win 95 98 NT 2000 XP software used to communicate with the MicroCAT Super O Lube Silicone lubricant used to lubricate O rings and O ring mating surfaces Super O Lube can be ordered from Sea Bird but should also be available locally from distributors Super O Lube is manufactured by Parker Hannifin see http www parker com ead cm2 asp cmid 3956 for details TCXO Temperature Compensated Crystal Oscillator Triton X100 Reagent grade non ionic surfactant detergent used for cleaning the conductivity cell Triton can be ordered from Sea Bird but should also be available locally from chemical supply or laboratory products companies Triton is manufactured by Mallinckrodt Baker see http www mallbaker com changecountry asp back Default asp for local distributors 42 Appendix Functional Description Appendix l Functional Description Sensors Note Pressure ranges are expressed in meters of deployment depth capability The MicroCAT embodies the same sensor elements 3 electrode 2 terminal borosilicate glass cell and pressure protected thermistor previously employed in Sea Bird s modular SBE 3 and SBE 4 sensors and in Sea Bird s SEACAT family The MicroCAT s optional pressure sensor developed by Druck Inc has a superior new design that is entirely different from conventional silicon types in which the deflection of a metallic diaphragm is detected by epoxy bonded
2. loosen hardware to separate clamp guide halves and mount on mooring cable applications deploy 5 connector at bottom 6 n The MicroCAT can be mounted with customer supplied hardware or can be ordered with pre installed Sea Bird mounting brackets Install customer supplied mounting equipment if Sea Bird mounting clamp and guide or brackets are not pre installed Install a mounting bracket that attaches to the tapped holes in the MicroCAT Use titanium hardware to attach the mounting bracket to the MicroCAT and place non metallic material between the titanium housing and any dissimilar metal in the bracket Do not drill any holes in the MicroCAT B Ensure the mounting scheme does not transfer mooring through tension to the end cap which could pull off the end cap New MicroCATs are shipped with AF24173 Anti Foulant Devices and protective plugs pre installed A Remove the protective plugs if installed from the anti foulant device cup The protective plugs must be removed prior to deployment or pressurization If the plugs are left in place during deployment the sensor will not register conductivity If left in place during pressurization the cell may be destroyed B Verify that the anti foulant device cup contains AF24173 Anti Foulant Devices see Section 5 Routine Maintenance and Calibration Install the I O cable on the MicroCAT A Lightly lubricate the inside of the cable connector with silicone grease
3. MicroCAT Diagnostic test s accessed in this M Diagnostics iiTS and manner are non destructive they do not write iiTSR over any existing instrument settings Not applicable to Stop MicroCAT with RS 485 interface Free computer COM port used to communicate Disconnect with MicroCAT COM port can then be used by u another program Note that MicroCAT must be connected to COM port for data to be obtained See Command Descriptions in Section 4 Deploying and Operating MicroCAT 14 Section 3 Preparing MicroCAT for Deployment 3 SBE 37 Configuration Options COM Settings Computer COM port baud rate data bits and In the Configure menu select SBE 37 The dialog box looks like this Firmware Version X Header Information Interface for communication between computer and MicroCAT Upload Settings parity for communication between computer and MicroCAT COMM Port Baud Rate Mode fi 9600 C RS 232 Full Duplex 95 485 Half Duplex m Data Bits C Inductive Modem Automatically get ID bu gis when only one MicroCAT is connected m Modem R5485 ID Prompt ID if multiple Parity C Prompt ID MicroCATs are online C Even C Odd None Automatically get ID Note e SEATERM s baud rate must be the same as the MicroCAT baud rate set with liiBaud Baud is factory set to 9600 but can b
4. Problem 2 Unreasonable T C or P Data The symptom of this problem is data that contains unreasonable values for example values that are outside the expected range of the data Cause Solution 1 Data with unreasonable 1 e out of the expected range values for temperature conductivity or pressure may be caused by incorrect calibration coefficients in the MicroCAT Send iiDC to verify the calibration coefficients in the MicroCAT match the instrument Calibration Certificates Cause Solution 2 Minimal changes in conductivity are an indication that the pump flow is not correct Poor flushing can have several causes e Air in the plumbing may be preventing the pump from priming This can result from A clogged air bleed hole clean the air bleed hole see Plumbing Maintenance in Section 5 Routine Maintenance and Calibration Incorrect orientation for a shallow deployment in a location with breaking waves see Optimizing Data Quality Deployment Orientation in Section 4 Deploying and Operating MicroCAT e The pump may be clogged by sediment Using a wash bottle flush the plumbing to attempt to dislodge the sediment If the sediment is impacted and you cannot flush it return the MicroCAT to Sea Bird for servicing To minimize ingestion of sediment for future deployments see Optimizing Data Quality Deployment Orientation in Section 4 Deploying and Operating MicroCAT 40 Section 6 Troubleshootin Problem 3 Salinity S
5. Set clock day month and year Follow with HHMMSS or it will not set date HHMMSS hhmmss Set clock hour minute and second PwrOff Enter quiescent sleep state Main power turned off Get Data Command MicroCAT ID Commands Dataii ID Get data obtained with GData AData StartSample or GSample from MicroCAT with ID ii Get MicroCAT ID ID ii where ii 0 99 ID ii Set MicroCAT ID to ii where ii 0 99 Must be sent twice because computer responds by requesting verification Miscellaneous Commands ii MicroCAT ID iiDS iiRxDelay x Display communication microcontroller firmware version for MicroCAT with ID ii x delay after MicroCAT receives command until transmitter is enabled 1 500 msec Default 25 msec liiTxDelay x iiSyncMode x x delay after MicroCAT transmits reply until transmitter is disabled 1 500 msec Default 25 msec x N Disable serial line sync mode only valid setting for RS 485 37 SIP iiBaud x X baud rate 1200 2400 4800 or 9600 Test EEPROM Erases all calibration ii EETest coefficients and user programmed 46 parameters Appendix Ill Command Summary FUNCTION _ CATEGORY COMMAND DESCRIPTION Status iiDS Display status TiiMMDDYY Set clock month day year Follow with mmddyy ii HHMMSS or it will not set date ii
6. inconsistent with its labeling Place the new Anti Foulant Device in the cup 4 Rethread the cap onto the cup Do not over tighten 5 If the MicroCAT is to be stored reinstall the protective plug Note that the plugs must be removed prior to deployment or pressurization If the plugs are left in place during deployment the cell will not register conductivity If left in place during pressurization the cell may be destroyed Cup CAUTION Anti foulant device cups are attached to the guard and connected with tubing to the cell Removing the guard without disconnecting the cups from the guard will break the cell If the guard must be Cup removed Plug Cap 1 Remove the two screws connecting each anti foulant device cup to the guard 2 Remove the four Phillips head screws connecting the guard to the housing and sensor end cap 3 Gently lift the guard away 37 Section 5 Routine Maintenance and Calibration Sensor Calibration Sea Bird sensors are calibrated by subjecting them to known physical conditions and measuring the sensor responses Coefficients are then Note computed which may be used with appropriate algorithms to obtain Please remove AF24173 engineering units The conductivity temperature and optional pressure DUET ie sensors on the MicroCAT are supplied fully calibrated with coefficients returning the MicroCAT to Sea Bird printed on their respective Calibration Certific
7. 37 B Baud rate 19 Bleed hole 29 34 C Cable length 19 Cable termination 20 Calibration 38 Cleaning 34 Clock 9 Command summary 46 Commands acquisition microcontroller 23 averaging 26 coefficients 27 communication microcontroller 21 communication microcontroller miscellaneous 22 descriptions 20 get data 22 global 21 MicroCAT ID 22 output format 24 polled sampling 25 setup 24 status 23 testing 26 Communication defaults 15 Conductivity cell cleaning 34 Connector 10 33 Corrosion precautions 33 D Data output format 24 28 Data transmission rate 19 Deployment 29 installation 31 preparing for 12 setup 30 Deployment orientation 8 10 31 Description 7 Dimensions 10 Index 55 E Electronics disassembly reassembly 44 End cap 10 33 Example setup and sampling 18 F Format data output 28 Functional description 43 G Glossary 42 Guard removal 36 37 ID 13 L Limited liability statement 2 M Maintenance 33 Mounting 29 O Operation description 17 Orientation 29 P Parker Super O Lube 42 Parts replacement 53 Plastic housing handling 35 Plumbing maintenance 34 Power 9 19 Pressure sensor maintenance 36 Pump 8 9 10 17 25 26 29 31 Q Quick start 5 R Recovery 32 Replacement parts 53 S Sample timing 11 Sampling example 18 SEASOFT W
8. DC 4 or equivalent B Standard Connector shown in photos Install the cable connector aligning the raised bump on the side of the connector with the large pin pin 1 ground on the MicroCAT Remove any trapped air by burping or gently squeezing the connector near the top and moving your fingers toward the end cap OR MCBH Connector Install the cable connector aligning the pins C Place the locking sleeve over the connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Attach the mounting equipment to the mooring cable or support See Optimizing Data Quality Deployment Orientation for deployment recommendations Verify that the hardware and external fittings are secure Connect the MicroCAT to the computer and power supply See Test Setup in Section 3 Preparing MicroCAT for Deployment Click Capture on SEATERM s Toolbar before you begin sampling The data displayed in SEATERM will be saved to the designated cap file Process the data as desired Note that the cap file cannot be processed by Sea Bird software as it does not have the required headers and format 31 Section 4 Deploying and Operating MicroCAT Recovery WARNING f 1 Rinse the conductivity cell with fresh water See Section 5 Routine If the MicroCAT stops working while Maintenance and Calibration for cell cleaning and storage underwater is unresponsive to commands
9. Section 4 Deploying and Operating MicroCAT Cable Length Baud Rate Data Transmission Rate and Power Cable Length Baud Rate and Data Transmission Rate The MicroCAT can transmit data over up to 1200 meters of twisted pair wire cable 26 AWG or smaller gauge larger diameter Notes e Baud rate is set with liiBaud The rate that data can be transmitted from the MicroCAT is dependent on the Output format is set with amount of data to be transmitted per scan and the serial data baud rate iiFormat See Command Descriptions p Time to transmit data number of characters 10 bits character baud rate where number of characters is dependent on the included data and output format see Data Output Formats Add 2 to the number of characters shown in the output format to account for the carriage return and line feed at the end of each scan For decimal output iiFormat 1 or 2 include decimal points commas and spaces when counting characters See Sample Timing in Section 2 Description of MicroCAT for information on sampling time Example How long does it take to transmit data with Dataii with a baud rate of 1200 for a MicroCAT with optional pressure sensor iiFormat 1 iiOutputDepthzY iiOutputSal Y iiOutputSV Y and iiOutputDensity Y output depth salinity sound velocity and density as well as C T P and date and time Number of characters see Data Output Formats 2 ID 2 comma amp sp
10. 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 20 100 350 600 1000 2000 3500 and 7000 meters Sensor Interface Temperature is acquired by applying an AC excitation to a hermetically sealed VISHAY reference resistor and an ultra stable aged thermistor with a drift rate of less than 0 002 C per year A 24 bit A D converter digitizes the outputs of the reference resistor and thermistor and optional pressure sensor AC excitation and ratiometric comparison using a common processing channel avoids errors caused by parasitic thermocouples offset voltages leakage currents and reference errors Conductivity is acquired using an ultra precision Wien Bridge oscillator to generate a frequency output in response to changes in conductivity A high stability TCXO reference crystal with a drift rate of less than 2 ppm year is used to count the frequency from the oscillator 43 Appendix Il Electronics Disassembly Reassembl Appendix II Electronics Disassembly Reassembly Disassembly CAUTION 1 Remove
11. 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 Instrument Status be awake for it to respond to a command use Connect on the Toolbar SEATERM sends the status to wake up the instrument command which displays in the e Status bar Provides status information To display or hide the Status Command Data Echo Area and bar select View Status bar in the View menu updates the Status bar 13 Note Following are the Toolbar buttons applicable to the MicroCAT Section 3 Preparing MicroCAT for Deployment Toolbar Description Equivalent Button Command Re establish communications with MicroCAT Connect Computer responds with S prompt MicroCAT uu goes to sleep after 2 minutes without communication from computer have elapsed Status Display instrument setup and status iiDS Coefficients Display calibration coefficients iiDC Capture instrument responses on screen to file As MicroCAT has no internal memory you Capture must capture before sampling begins to save _ data for future processing File has cap extension Press Capture again to turn off capture Capture status displays in Status bar Perform one or more diagnostic testson iiDS iiDC
12. a sample can be sent globally to all MicroCATs on the RS 485 line or to an individual MicroCAT Each MicroCAT then holds the data in a buffer until it receives a command to transmit the data Calibration coefficients stored in EEPROM allow the MicroCAT to transmit data in engineering units The MicroCAT retains the temperature and conductivity sensors used in the SBE 16 SEACAT C T Recorder but has improved acquisition electronics that increase accuracy and resolution and lower power consumption The MicroCAT s aged and pressure protected thermistor has a long history of exceptional accuracy and stability typical drift is less than 0 002 C per year Electrical isolation of the conductivity electronics eliminates any possibility of ground loop noise The MicroCAT s internal field conductivity cell is immune to proximity errors and unaffected by external fouling A plastic cup with threaded cover at each end of the cell retains the expendable AF24173 Anti Foulant Device Section 2 Description of MicroCAT Air bleed hole in top of duct Shown with conductivity cell guard removed Exhaust Intake CAUTION Do not run the pump dry The pump is water lubricated running it without water will damage it If briefly testing your system in dry conditions orient the MicroCAT to provide an upright U shape for the plumbing Then fill the inside of the pump head with water via the pump exhaust tubing This will provide enough lubric
13. and Dataii more easily start averaging and get averaged data iiSACG Output averaged data converted See MicroCAT Communication Start new average Microcontroller Commands above TiiSARG Output averaged data raw Start new average TiiSAC Output averaged data converted Continue averaging TiiSAR Output averaged data raw Continue averaging Testing Commands iiTT Measure temperature 30 times output converted data Note iiTC Measure conductivity 30 times output iiTC and iiTCR report conductivity converted data from essentially the same sample of water for all 30 measurements iiTP Measure pressure 30 times output because the pump does not run converted data between measurements and water does not freely flow through the iiTTR Measure temperature 30 times output raw conductivity cell data iiTCR Measure conductivity 30 times output raw data iiTPR Measure pressure 30 times output raw data iiTR Measure real time clock frequency 30 times output data iiSS Send averaged data statistics iiPumpOn Run pump for 5 seconds iiPumpOn can be used to test pump or to run it to remove sediment from inside conductivity cell CAUTION Do not run the pump dry The pump is water lubricated running it without water will damage it If briefly testing your system in dry conditions orient the MicroCAT to provide an upright U shape for the plumbing Then fill the inside of the pump head with water via
14. ccccc pppp ppp dddd ddd sss ssss vvvv vvv c conductivity S m Irr rrir dd mmm yyyy hh mm ss n p pressure decibars sent only if optional pressure sensor installed e 6 iiFormat 2 d depth meters sent only if iiOutputDepth Y S salinity psu data sent only if iiOutputSal Y ii MMmMmm ttt tttt cc ccccc pppp ppp dddd ddd sss ssss vvvv vvv rrr rrrr mm dd yyyy hh mm ss n v sound velocity meters second Example Sample output from Data02 when pressure sensor not sent only if iiOutputSV Y installed 02Format 1 02OutputDepth N r density sigma kg m data sent 02OutputDensity N 02OutputSal N and 02OutputSV N only if iiOutputDensity Y 02 12345 23 7658 0 00019 07 Aug 2004 16 30 43 dd mmm yyyy day month Jan Feb Mar etc year mm dd yyyy month day year hh mm ss hour minute second n number of samples in average sent only if average data was ID serial number temperature conductivity date time requested Data Output after sending Polled Sampling Command e There is a comma but no space iiTS iiTSR iiTSS iiSL iiSLT between serial number temperature and conductivity All other data is e iiFormat 1 default separated with a comma and space Leading zeros are suppressed except for one zero to the left of the decimal point mmmmm ttt tttt cc ccccc pppp ppp dddd ddd sss ssss VVVV VVV rrr rrrr dd mmm yyyy hh mm ss e The MicroCAT s pr
15. mainly with daytime measurements during sunny conditions may be caused by this phenomenon Cause Solution 3 For a MicroCAT moored at shallow depth air bubbles from breaking waves or spontaneous formation in supersaturated conditions can cause the conductivity cell to read low of correct 41 Glossar Glossary Fouling Biological growth in the conductivity cell during deployment MicroCAT High accuracy conductivity temperature and optional pressure Recorder Monitor A number of models are available e SBE 37 IM Inductive Modem internal battery and memory e SBE 37 IMP Inductive Modem internal battery and memory integral Pump e SBE 37 SM Serial interface internal battery and Memory e SBE37 SMP Serial interface internal battery and Memory integral Pump e SBE 37 SI Serial Interface only no internal battery or memory e SBE 37 SIP Serial Interface only no internal battery or memory integral Pump The SM SMP SI and SIP are available with RS 232 standard or RS 485 optional interface PCB Printed Circuit Board Scan One data sample containing temperature conductivity optional pressure and date and time as well as optional derived variables depth salinity sound velocity and density SEASOFT Win32 Sea Bird s complete Win 2000 XP software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 includes SEATERM
16. most applications deploy in the orientation shown connector end down for proper operation 19 0 0 75 4 150 6 5 93 1 Thermistor device cup Optional pressure port 241 3 9 50 O Conductivity O 6 63 cell 0 261 O Diameter 4 places 528 6 20 81 Pump Conductivity exhaust cell intake Standard Without Mounting Hardware End Cap Connector i 4 1 9 1 B e 20 H Pin Signal 1 Common 2 RS 485 A 3 RS 485 B 4 External power 7 24 VDC Optional Wire Mounting Clamp and Guide Optional Flat Surface Mounting Brackets The MicroCAT comes standard with a 4 pin XSG connector An optional MCBH wet pluggable connector is available O standard XSG 4 BCL HP SS connector t optional MCBH 4MP WB TI 3 8 length base 12 20 thread connector 10 Section 2 Description of MicroCAT Sample Timing Notes e The pump runs for 0 5 seconds before each sample measurement Acquisition power on Time for iiTS or iiTSR command Acquisition time shown does not Pressure Sensor iiNCycles Time seconds include time to transmit data which 1 2 1 is dependent on baud rate See 2 2 2 Cable Length Baud Rate and Data With Pressure Sensor 4 26 Transmission Rate in Section 4 8 3 3 Deploying and Operating MicroCAT 1 18 For the date and time output with the data time is the time at the start of Without Pr
17. pin adapter for use with computer with DB 25 connector SBE 37 SIP MicroCAT Spare hardware and o ring kit Conductivity cell cleaning solution Triton X SBE 37 SIP MicroCAT Software and Electronic Copies of MicroCAT User Manual Software Manuals and User Manual Section 2 Description of MicroCAT Section 2 Description of MicroCAT This section describes the functions and features of the SBE 37 SIP MicroCAT including specifications dimensions end cap connector and sample timing System Description Standard titanium yy ShallowCAT t l housing housing For most applications deploy in orientation shown connector end down for proper operation see Optimizing Data Quality Deployment Orientation in Section 4 Deploying and Operating MicroCAT The SBE 37 SIP MicroCAT is a high accuracy externally powered conductivity and temperature pressure optional monitor which includes an RS 485 serial interface and integral pump Designed to be incorporated into oceanographic sensing systems MicroCATs have non corroding titanium housings rated for operation to 7000 meters 23 000 feet or pressure sensor full scale range An optional plastic ShallowCAT housing rated for 250 meters 820 feet is also available Communication with the MicroCAT is over a 2 wire RS 485 link Commands can be sent to the MicroCAT to provide status display data acquisition setup and diagnostic tests A command to take
18. the I O connector end cap and disconnect the electronics from the See Section 5 Routine Maintenance end cap and Calibration for handling A Wipe the outside of the I O connector end cap and housing dry being instructions for the plastic careful to remove any water at the seam between them ShallowCAT housing B Remove the two flat Phillips head titanium machine screws Do not SEIS remove any other screws from the housing securing C Remove the I O connector end cap by pulling on it firmly and connector steadily It may be necessary to rock or twist the end cap back and end cap forth or use a non marring tool on the edge of the cap to loosen it E D Theend capis electrically connected to the electronics with a 4 pin partially Molex connector Holding the wire cluster near the connector pull removed 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 Putthe end cap aside being careful to protect the O rings from damage or contamination Molex connector 2 Remove the housing from the electronics A Wipe the outside of the sensor end cap and housing dry being careful to remove any water at the seam between them B Remove the two flat Phillips head titanium machine screws connecting the guard to the housing and sensor end cap Do not remove any other screws from the guard C Remove the flat Phillip
19. the pump exhaust tubing This will provide enough lubrication to prevent pump damage during brief testing 26 Section 4 Deploying and Operating MicroCAT Notes Dates shown are when calibrations were performed Calibration coefficients are initially factory set and should agree with Calibration Certificates shipped with MicroCAT See individual Coefficient Commands below for definitions of the data in the example The calibration display indicates SBE37 SI because the 37 SIP uses the same firmware as the 37 Sl Note F floating point number S string with no spaces Calibration Coefficients Commands iiDC Display calibration coefficients Equivalent to Coefficients on Toolbar Example Display coefficients for MicroCAT with ID 03 which does not have a pressure sensor user input in bold S gt 03DC SBE37 SI 485 V 2 3 0011 temperature 08 apr 96 TAO 9 420702e 05 TAL 2 937924e 04 TA2 3 739471e 06 TA3 1 909551e 07 conductivity 09 apr 96 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 ECS 11 apr 96 RTCAO 9 999782e 01 RTCAl 1 749351e 06 RTCA2 3 497835e 08 The individual Coefficient Commands listed below are used to modify a particular coefficient or date iiTCalDate S TiiTAO F iiTA1 F iiTA2 F iiTA3 F iiCalDate S iiCG F iiCH F iiCI F
20. to 01 Jan 1980 when power is first applied If you wish to use the built in real time clock set the date and time e DDMMYY and MMDDYY are equivalent Either can be used to set the date e Always set date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set for with MMDDYY DDMMYY ZiiMMDDYYz or iiDDMMYY AData GData StartSample GSample MMDDYY mmddyy DDMMYY ddmmyy HHMMSS hhmmss PwrOff 21 Command all MicroCATs to get average data from acquisition units and start next averaging cycle Communication microcontrollers send iiSACG send averaged converted data and start new average to acquisition microcontrollers Averaged data is held in communication microcontroller buffers until receiving Dataii Command all MicroCATs to get one sample Communication microcontrollers send iiTS to acquisition microcontrollers to take sample Data is held in communication microcontroller buffers until receiving Dataii Command all MicroCATs to get 1 sample Communication microcontrollers send iiTS to acquisition microcontrollers to take sample and leave power on Data is held in communication microcontroller buffers until receiving Dataii Send this command once before using GSample Command all MicroCATs to get last sample and then take new sample Communi
21. 0 1050 7 635 2 47 dbars Enter offset in MicroCAT For demanding applications or where the sensor s air ambient pressure response has changed significantly calibration using a dead weight generator is recommended The pressure sensor port uses a 7 16 20 straight thread for mechanical connection to the pressure source Use a fitting that has an O ring tapered seal such as Swagelok 200 1 4ST which conforms to MS16142 boss 39 Section 6 Troubleshootin Section 6 Troubleshooting This section reviews common problems in operating the MicroCAT and provides the most common causes and solutions Problem 1 Unable to Communicate with MicroCAT The S gt prompt indicates that communications between the MicroCAT and computer have been established Before proceeding with troubleshooting attempt to establish communications again by clicking Connect on SEATERM s toolbar or pressing the Enter key several times Cause Solution 1 The I O cable connection may be loose Check the cabling between the MicroCAT and computer for a loose connection Cause Solution 2 The instrument type and or its communication settings may not have been entered correctly in SEATERM Select the SBE 37 in the Configure menu and verify the settings in the Configuration Options dialog box The settings should match those on the instrument Configuration Sheet Cause Solution 3 The I O cable between the MicroCAT and computer may not be the correct one
22. 6 Place Northeast EPA Establishment No 74489 W A 1 Bellevue WA 98005 49 Appendix IV AF24173 Anti Foulant Device AF24173 Anti Foulant Device FOR USE ONLY IN SEA BIRD ELECTRONICS CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS ACTIVE INGREDIENT Bis tributyltin oxide 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 If on skin or Take off contaminated clothing clothing Rinse skin immediately with plenty of water for15 20 minutes Call a poison control center or doctor for treatment advice If swallowed Call poison control center or doctor immediately for treatment advice Have person drink several glasses of water Do not induce vomiting Do not give anything by mouth to an unconscious person If in eyes Hold eye open and rinse slowly and gently with water for 15 20 minutes Remove contact lenses if present after the first 5 minutes then continue rinsing eye Call a poison control center or doctor for treatment advice HOT LINE NUMBER Have the product container or label with you when calling a poison control center or doctor or going for treatment For further information call National Pesticide Telecommunications Network NPTN at 1 800 858 7378 Net Contents Two anti foulant devices Sea Bird E
23. DDMMY Y Set clock day month year Follow with ddmmyy ii HHMMSS or it will not set date FHEHMMSS Set clock hour minute second hhmmss X 0 Output raw hex data for diagnostic use at Sea Bird iiFormat x x 1 Output converted data date dd mmm yyyy x 2 Output converted data date mm dd yyyy iiOutputSal x x Y Calculate and output salinity psu x N Do not x Y Calculate and output sound velocity iiOutputS V x m sec Setup x N Do not iiOutputDepth x Y Calculate and output depth meters x x N Do not fliiOutputDensity pu ME and output density sigma Acquisition x 8 x N Do not Microcontroller 7 TN x latitude degrees to use in Commands iiLatitude x i 3 depth calculation ii MicroCAT ID x reference pressure gauge in decibars used iiRefPress for conductivity salinity and sound velocity nee A calculation when MicroCAT does not have pressure sensor m E x number of A D cycles to average 1 127 iiNCycles x Default 4 P d x Y Internal pump is installed peeled only valid setting for 37 SIP iiTS Take sample output converted data iiTSR Take sample output raw data Polled iiTSS Take sample output converted data Sampling iiSL Output converted data from last sample iSLT Output converted data from last sample then take new sample iiGA Start averaging data iiSACG Output averaged data converted Start new average iiSARG Output averaged data raw Start new average Ave
24. SBE 37 SIP MicroCAT Conductivity and Temperature Monitor with RS 485 Interface and Integral Pump For most applications deploy in orientation shown connector end down for proper operation Shown with standard titanium housing optional ShallowCAT plastic housing available User s Manual Sea Bird Electronics Inc 1808 136 Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Fax 425 643 9954 Manual Version 005 06 14 07 E mail seabird seabird com Acquisition Firmware Version 2 3b and later Website www seabird com Communication Firmware Version 1 2 and later Limited Liability Statement Extreme care should be exercised when using or servicing this equipment It should be used or serviced only by personnel with knowledge of and training in the use and maintenance of oceanographic electronic equipment SEA BIRD ELECTRONICS INC disclaims all product liability risks arising from the use or servicing of this system SEA BIRD ELECTRONICS INC has no way of controlling the use of this equipment or of choosing the personnel to operate it and therefore cannot take steps to comply with laws pertaining to product liability including laws which impose a duty to warn the user of any dangers involved in operating this equipment Therefore acceptance of this system by the customer shall be conclusively deemed to include a covenant by the customer to defend indemnify and hold SEA BIRD ELECTRONICS INC harmless from a
25. able Termin tion np retenti be arr renta 20 Timeout Descrptlion uh eth eben dpa eras 20 Command Descriptions 3 n tree He DR rta 20 MicroCAT Communication Microcontroller Commands 21 MicroCAT Acquisition Microcontroller Commands 23 Data Output Forma ts 5 tete ete HO o reto ets 28 Optimizing Data Quality Deployment Orientation eee 29 Background Information esee enne 29 Deployment Recommendations eese 29 Setup for Deployment 5 1 rod nee aee ODER 30 Deployment nene ee t tO erre 31 RECOVELY ien eh a Re avere es 32 Section 5 Routine Maintenance and Calibration 33 Corrosion Precautions essere ener nnne nnne 33 Connector Mating and Maintenance eene 33 Conductivity Cell Maintenance seen 34 Plumbing Martenance entree deeper t teen fo dee rebote e 34 Handling Instructions for Plastic ShallowCAT Option sss 35 Pressure Sensor optional Maintenance eese 36 Replacing Anti Foulant Devices Mechanical Design Change 36 Replacing Anti Foulant Devices SBE 37 SI SM IM see 37 Sensor Calibration ce terere ecee tete pe ete o e re eb ge teen 38 Section 6 Troubleshooting eere eee eterne eese tn tn non tnun 40 Problem 1 Unable t
26. ace 5 serial number 1 comma 8 T 1 comma 8 C 2 comma amp space 8 P 2 comma amp space 8 depth 2 comma amp space 8 salinity 2 comma amp space 8 sound velocity 2 comma amp space 8 density 2 comma amp space 11 date 2 comma amp space 8 time 2 carriage return amp line feed 102 Time required to transmit data 102 characters 10 bits character 1200 0 85 seconds Power and Cable Length Note Common wire resistances A consideration in determining maximum cable length is supplying enough Resistance ohms foot power at the power source so that sufficient voltage is available after IR loss 0 0016 5 0 0025 in the cable from the 0 5 Amp turn on transient two way resistance to 0 0040 power the MicroCAT Provide at least 7 volts after IR loss 0 0064 V IR gt 7 volts 0 0081 where I MicroCAT turn on transient 0 5 Amps see Specifications 0 0107 0 0162 0 0257 0 0410 0 0653 Example 1 For 20 gauge wire what is maximum distance to transmit power to MicroCAT if using 12 volt power source V IR gt 7 volts 12 volts 0 50 Amps 0 0107 ohms foot 2 cable length gt 7 volts 5 volts gt 0 50 Amps 0 0107 ohms foot 2 cable length Cable length lt 467 ft 142 meters Using a higher voltage power supply or a different wire gauge would increase allowable cable length Example 2 Same as above but there are 4 MicroCATs powered from
27. ail 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 Test power and communications Section 3 Preparing MicroCAT for Deployment 2 Deploy the MicroCAT Section 4 Deploying and Operating MicroCAT A Set date and then time B Establish setup and operating parameters C Remove protective plugs from anti foulant device cup and verify AF24173 Anti Foulant Devices are installed Leave protective plugs off for deployment D Install I O cable connector and locking sleeve E Deploy MicroCAT using optional Sea Bird mounting hardware or customer supplied hardware For most applications mount the MicroCAT with the connector at the bottom for proper operation F Save real time data to a file using Capture on SEATERM s Toolbar or your own software 5 Section 1 Introduction Unpacking MicroCAT Shown below is a typical MicroCAT shipment I O cable 25 pin to 9
28. ates see back of manual These Store them for future use See coefficients have been stored in the MicroCAT s EEPROM Replacing Anti Foulant Devices for removal procedure We recommend that MicroCATs be returned to Sea Bird for calibration Conductivity Sensor Calibration The conductivity sensor incorporates a fixed precision resistor in parallel with the cell When the cell is dry and in air the sensor s electrical circuitry outputs a frequency representative of the fixed resistor This frequency is recorded on the Calibration Certificate and should remain stable within 1 Hz over time The primary mechanism for calibration drift in conductivity sensors is the fouling of the cell by chemical or biological deposits Fouling changes the cell geometry resulting in a shift in cell constant Accordingly the most important determinant of long term sensor accuracy is the cleanliness of the cell We recommend that the conductivity 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 pla
29. ation to prevent pump damage during brief testing Note See SEATERM s Help files for detailed information on the use of the program The MicroCAT s integral pump runs for 0 5 seconds each time the MicroCAT takes a sample providing the following advantages over a non pumped system e Improved conductivity response The pump flushes the previously sampled water from the conductivity cell and brings a new water sample quickly into the cell e Reduced fouling Water does not freely flow through the conductivity cell between samples minimizing fouling Note that the MicroCAT was designed to be deployed as shown with the intake exhaust in an inverted U shape This orientation prevents sediment from being trapped in the pump impeller housing n air bleed hole in the top of the duct allows air to escape from the plumbing so the pump will prime See Optimizing Data Quality Deployment Orientation in Section4 Deploying and Operating 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 crystal structure is perfectly elastic so the se
30. cation microcontrollers send iiSL to acquisition microcontrollers send Tii TS to acquisition microcontrollers once iiSL reply is received and leave power on Data from last sample is held in communication microcontroller buffers until receiving Dataii data from new sample is held in acquisition microcontroller buffers Set real time clock month day and year for all MicroCATs Must be followed by HHMMSS to set time Set real time clock day month and year for all MicroCATs Must be followed by HHMMSS to set time Set real time clock hour minute and second for all MicroCATs Quit session and place all MicroCATs in quiescent sleep state Main power is turned off Section 4 Deploying and Operating MicroCAT Get Data Command Note Dataii Get data obtained with GData AData In SEATERM to save data to a file StartSample or GSample from click Capture on the Toolbar before MicroCAT with ID ii getting data MicroCAT ID Commands Only one MicroCAT can be online when sending these commands ID Get MicroCAT ID ID ii where ii 0 99 D ii Set MicroCAT ID to ii where ii 0 99 D ii must be sent twice because the computer requests verification If more than one MicroCAT is online when sending this command all MicroCATs online will be set to same ID Miscellaneous Commands Note The status display indicates tii ii Mi B SBE37 SM because the 37 SIP All these commands ar
31. ck around the screw hole s is greater for the plastic housing than for the titanium housing Observe the following precautions gt gt When removing end caps to access the electronics be careful to avoid any impact in this area of the housing When reinstalling end caps do not use excess torque on the screws Sea Bird recommends tightening the screws to 15 inch Ibs Alternatively tighten the screws finger tight and then turn each screw an additional 45 degrees e Aplastic housing is more susceptible to scratches than a titanium housing Do not use screwdrivers or other metal tools to pry off the end caps Of primary concern are scratches on O ring mating and sealing surfaces Take extra precaution to avoid a scraping contact with these surfaces when re seating the end cap Also take care to keep the O ring lubricated surfaces clean avoid trapping any sand or fine grit that can scratch the critical sealing surfaces If the O ring lubricant does accumulate any material or grit that can cause a leak or make a scratch it must be carefully cleaned and replaced with fresh clean lubricant Parker Super O Lube Shallow external scratches are cosmetic only and will not affect the performance of the MicroCAT However deep external scratches can become points of weakness for deep deployments or fracture from impact during very cold weather See Appendix II Electronics Disassembly Reassembly for detailed step by st
32. crystal type 32 768 Hz corrected for drift and aging by comparison to MicroCAT counter time base to produce Clock overall 5 ppm accuracy 2 6 minutes year 0 5 Amps at 7 24 VDC See Power and Cable Length in Section 4 Deploying and Operating MicroCAT Quiescent Current 30 microamps Sampling Current 35 milliamps nominal excluding pump External e 34 3 milliamps at 9 V Input Power e 32 8 milliamps at 11 V e 31 9 milliamps at 13 V e 31 4 milliamps at 15 V Communication Current 1 1 milliamps Pump current sample 0 13 amp second Housing and Standard Titanium housing rated at 7000 m 23 000 ft Depth Rating Optional Plastic housing rated at 250 m 820 ft red Weight Standard titanium housing handling instructions for the without In air 4 2 kg 9 2 Ibs In water 2 8 kg 6 2 Ibs plastic ShallowCAT housing pressure Sensor Optional plastic housing or clamps In air 3 1 kg 6 9 lbs In water 1 7 kg 3 8 Ibs Resolution Typical RMS noise with fixed resistors on the temperature and conductivity inputs Tnom 9 6 Cnom 3 4 iiNCycles Temperature C Conductivity S m 2 0 000193 0 000042 4 0 000124 0 000023 8 0 000095 0 000018 16 0 000078 0 000015 See Section 4 Deploying and Operating MicroCAT for a description of iiNCycles Dimensions 113 5 4 47 7 67 3 2 65 a e 2 45 Diameter Section 2 Description of MicroCAT Notes e Dimensions in millimeters inches e For
33. default location for the software is c Program Files Sea Bird Within that folder is a sub directory for each program The installation program allows you to install the desired components Install all the components or just install SEATERM terminal program Test Setup 1 Remove the dummy plug A By hand unscrew the locking sleeve from the MicroCAT s bulkhead connector If you must use a wrench or pliers be careful not to loosen the bulkhead connector instead of the locking sleeve B Remove the dummy plug from the MicroCAT s I O bulkhead connector by pulling the plug firmly away from the connector Locking sleeve 4 Dummy plu i 2 Install the Sea Bird I O cable connector Standard Connector Install the Sea Bird I O cable connector aligning the raised bump on the side of the connector with the large pin pin 1 ground on the MicroCAT XSG connector shown below OR MCBH Connector Install the I O cable connector aligning the pins 3 Connect the I O cable connector to your computer s serial port 4 Connect the I O cable connector s red and black wires to a power supply 7 24 VDC 12 Section 3 Preparing MicroCAT for Deployment Test and Setting ID Note 1 Double click on SeaTerm exe If this is the first time the program is used See SEATERM s Help files the setup dialog box may appear SeaTerm Setup x The initialization file SeaT erm ini was not found in the Windows directory Plea
34. e changed by the user see Command Descriptions in Section 4 Deploying and Operating MicroCAT When you click OK SEATERM 4 saves the Configuration Options f settings to the SeaTerm ini file in your Windows directory SeaTerm ini contains the last saved 5 settings for each instrument When you open SEATERM and select the desired instrument SBE 37 39 etc in the Configure menu the Configuration Options dialog box shows the last saved settings for that instrument Cancel Default Help Lx Make the selections in the Configuration Options dialog box COMM Port 1 through 10 as applicable Baud Rate 9600 documented on Configuration Sheet in manual Data Bits 8 Parity None Mode RS 485 Half Duplex Modem RS 485 ID Automatically get ID Click OK to save the settings In the Communications menu select Options Cycle baud when connecting Click Connect on the Toolbar SEATERM tries to connect to the MicroCAT at the baud set in Step 3 If it cannot it cycles through all other possible baud rates to try to connect When it connects If Configuration Options dialog box was set to Automatically get ID SEATERM automatically sends ID to get the MicroCAT s ID number If Configuration Options dialog box was set to Prompt ID SEATERM asks the user to input the MicroCAT s ID number When the MicroCAT is ready the display looks like this S This shows that correct communications betw
35. e displayed in response to the status command 12345 23 7658 0 00019 0 062 01 Jan 1980 12345 z MicroCAT serial number 23 7658 temperature in degrees Celsius 0 00019 z conductivity in S m 0 062 pressure in decibars 01 Jan 1980 date default upon power up is 01 Jan 1980 00 30 43 z time default upon power up is 00 00 00 00 30 43 where These numbers should be reasonable i e room temperature zero conductivity barometric pressure gauge pressure Each MicroCAT on an RS 485 line must have a unique ID for communicating with the computer Set the ID as described below first verifying that only one MicroCAT is on line before you set the ID A Set the MicroCAT ID by typing ID ii ii 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 prompt E Click Connect on the Toolbar This allows the system to use the Automatically get I D feature when using Toolbar buttons or menus Command the MicroCAT to go to sleep quiescent state by typing PwrOff and pressing the Enter key The MicroCAT is ready for programming and deployment 16 ection 4 Deploying and Operating MicroCAT Section 4 Deploying and Operating MicroCAT This section includes System operation Example sets of operation command Baud rate cable l
36. e during brief testing Note If more than one MicroCAT is on line when you set the ID all MicroCATs will be set to the same ID 6 10 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 ID number Note that the ID is stored in the MicroCAT s EEPROM and can be changed so that multiple MicroCATs on a single RS 485 line each have a unique ID Press the Enter key to get the S gt prompt Display MicroCAT status information by clicking Status on the Toolbar The display looks like this S gt iiDs where ii MicroCAT ID SBE37 SI 485 V 2 3 SERIAL NO 0011 01 Jan 1980 00 19 08 sample interval 30 seconds not applicable to SBE 37 SIP RS 485 do not output salinity with each sample do not output sound velocity with each sample do not output density with each sample do not output depth with each sample latitude to use for depth calculation 0 00 deg A D cycles to average 4 internal pump is installed temperature 7 54 deg C S Command the MicroCAT to take a sample by typing ftii TS ii MicroCAT ID and pressing the Enter key The display looks like this if optional pressure sensor installed iiFormat 1 and do not output salinity sound velocity density or depth with each sampl
37. e locking sleeve over the cable connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Verify that a cable is installed on the MicroCAT before deployment 33 Section 5 Routine Maintenance and Calibration Conductivity Cell Maintenance CAUTIONS e Do not put a brush or any The MicroCAT s conductivity cell is shipped dry to prevent freezing in object inside the conductivity shipping Refer to Application Note 2D Instructions for Care and Cleaning cell to clean it Touching and of Conductivity Cells for conductivity cell cleaning procedures and bending the electrodes can cleaning materials change the calibration Large bends and movement of the electrodes can damage the cell 1 Do not store the MicroCAT with moored instrument water in the conductivity cell Freezing temperatures for example in Arctic environments e The Active Use after each cast section of the application note is not applicable to the MicroCAT which is intended for use as a or during air shipment can break To rinse or fill the conductivity cell and pump exhaust plumbing Bs conductivity cell if it is full e Place Tygon tubing in the end of the anti foulant device cap on the of water conductivity cell e Hold or clamp the MicroCAT with the intake and exhaust up so that the plumbing is in a U shape e Pour the water or solution through the Tygon conductivity cell and pump ex
38. e main concern and sediment is not an issue Case A You need accurate data immediately upon deployment Plug the bleed hole Deploy the MicroCAT with the plumbing in an upright U shape providing maximum bio foul protection but leaving the MicroCAT vulnerable to ingestion of sediment Case B You can skip some initial data allowing time for trapped air to dissolve into the water and the pump to prime properly Plug the bleed hole Deploy the MicroCAT with the plumbing in an inverted U shape providing maximum bio foul protection as well as protection from the ingestion of sediment This deployment method will provide good data within a day if the deployment is deeper than 30 meters Eliminate scans associated with the initial deployment by evaluating the conductivity data minimal changes in conductivity are an indication that the pump flow is not correct because air in the plumbing has prevented the pump from priming e Deployments where air bubbles are the main concern and sediment is not an issue Plug the bleed hole Deploy the MicroCAT with the plumbing in an upright U shape This orientation provides better bleeding of air from the plumbing than can be achieved with the small bleed hole but leaves the MicroCAT vulnerable to ingestion of sediment 29 Section 4 Deploying and Operating MicroCAT Setup for Deployment Notes Date and time are reset to 01 Jan 1980 when power is applied If you wish to use the built
39. e preceded by tii where ti MicroCAT ID 0 99 uses the same communication s d ada microcontroller firmware as DS Display MicroCAT communication the 37 SM microcontroller firmware version and timeouts Example user input in bold command used to modify parameter shown in parentheses S 01DS SBE37 SM 485 COMM V 1 2 rxdelay 25 msec iiRxDelay txdelay 25 msec iiTxDelay serial line sync mode disabled iiSyncModezN only valid setting for RS 485 37 SIP iiRxDelay x x delay after MicroCAT receives a command until transmitter is enabled 1 500 msec Default 25 msec iiTxDelay x x delay after MicroCAT transmits a reply until transmitter is disabled 1 500 msec Default 25 msec iiSyncMode x x N Disable serial line sync mode only valid setting for RS 485 37 SIP iiBaud x x baud rate 1200 2400 4800 or 9600 Notes The MicroCAT s baud rate set with liiBaudz must be the same as SEATERWM s baud rate set in the Configure menu ii EETest Test EEPROM This test erases all calibration coefficients and user programmed parameters 22 Section 4 Deploying and Operating MicroCAT MicroCAT Acquisition Microcontroller Commands All Acquisition Microcontroller Commands are preceded by ii where ii MicroCAT ID 0 99 Status Command iiDS Display operating status and setup Notes Equivalent to Status on Toolbar e The status display indicat
40. each sample iiOutputS V output density with each sample iiOutputDensity output depth with each sample iiOutputDepth latitude to use for depth calculation 0 00 deg iiLatitude reference pressure 0 0 db iiRefPress A D cycles to average 4 iiNCycles internal pump is installed iiPumpInstalled Y only valid setting for 37 SIP temperature 7 54 deg C 23 Section 4 Deploying and Operating MicroCAT Setup Commands Notes TiiMMDDYY mmddyy Set real time clock month day and year e Date is reset to 01 Jan 1980 Must be followed by iiHHMMSS to when power is first applied If you set time wish to use the built in real time Goals set the date and time TiiDDMMYY ddmmyy Set real time clock day month and year e iiIDDMMYY and iiMMDDYY Must be followed by ii HHMMSS are equivalent Either can be ust ae ce ian o used to set the date set time e Always set date and then time If a new date is entered but not a ii HHMMSS hhmmss Set real time clock hour minute new time the new date will not and second be saved If a new time is entered without first entering a new date the date will ae Example Set current date and time for MicroCAT with ID 01 to the last date it was set for with 10 January 2005 12 00 00 user input in bold iiMMDDYY or iiDDMMYY S gt 01MMDDYY 011005 S gt 01HHMMSS 120000 or S gt 01DDMMYY 100105 S gt 01HHMMSS 120000 Note See Data Out
41. ed to be preceded with two 9 characters to clear the communication microcontroller receive buffers Example status command for MicroCAT 01 S gt 01DS This section describes commands and provides sample outputs See Appendix III Command Summary Table for a summarized command list When entering commands 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 If the system does not return an S gt prompt after executing a command press the Enter key to get the S gt prompt If a new command is not received within 2 minutes after the completion of a command the MicroCAT returns to the quiescent sleep state If in quiescent state re establish communications by clicking Connect on the Toolbar to get an S prompt 20 Note Global sampling commands AData GData StartSample and GSample cause all MicroCATs to sample at the same time Because of the large sampling turn on transient 0 5 Amps if you use these commands while powering more than one MicroCAT from the same power source the power source must be able to supply 0 5 Amps for each MicroCAT simultaneously See Power and Cable Length above for power calculations Section 4 Deploying and Operating MicroCAT MicroCAT Communication Microcontroller Commands Global Commands Notes e Date and time are reset
42. een the computer and MicroCAT has been established If the system does not respond as shown Click Connect again Verify the correct instrument was selected in the Configure menu and the settings were entered correctly in the Configuration Options dialog box Note that the baud rate is documented on the Configuration Sheet in this manual Check cabling between the computer and MicroCAT 15 Section 3 Preparing MicroCAT for Deployment Notes e The status display indicates SBE37 SI because the 37 SIP uses the same firmware as the 37 Sl The MicroCAT has a timeout algorithm If it does not receive a command or sample data for 2 minutes it powers down its communication circuits placing it in quiescent sleep state and drawing minimal current If the system does not appear to respond click Connect on the Toolbar to reestablish communications For reliable operation all commands may need to be preceded with two 9 characters in order to clear the communication microcontroller receive buffers Example take sample command for MicroCAT with ID 01 S gt 01TS CAUTION Do not run the pump dry The pump is water lubricated running it without water will damage it If briefly testing your system in dry conditions orient the MicroCAT to provide an upright U shape for the plumbing Then fill the inside of the pump head with water via the pump exhaust tubing This will provide enough lubrication to prevent pump damag
43. elow before setting up your system Example user input in bold Wake up all MicroCATs Globally set date and time to November 7 2004 09 43 00 Set up all MicroCATs to output salinity and then put all MicroCATs in quiescent sleep state Click Connect on Toolbar to wake up all MicroCAT communication microcontrollers S gt MMDDYY 110704 S gt HHMMSS 0 94300 S 4010UTPUTSAL Y S gt 01DS to verify setup S gt 020UTPUTSAL Y S gt 02DS to verify setup S gt 030UTPUTSAL Y S gt 03DS to verify setup S PWROFF When ready to take a sample wake up all MicroCATs Command all MicroCATs to take a sample and hold data in buffer and then command each MicroCAT to transmit data from buffer Put all MicroCATs in quiescent sleep state Repeat as desired Click Connect on Toolbar to wake up all MicroCAT communication microcontrollers S gt STARTSAMPLE All pumps run for 2 second and all MicroCATs take a sample S DATAO1 S DATAO2 S DATAO3 S PWROFF Repeat Connect through PWROFF sequence as desired When ready to get the average wake up all MicroCATs Request all MicroCATs to get average data and hold average in buffer and start next averaging cycle and then command each MicroCAT to transmit average data from buffer Put all MicroCATs in quiescent sleep state Click Connect on Toolbar to wake up all MicroCAT communication microcontrollers S gt ADATA S DATAO1 S DATAO2 S DATAO3 S PWROFF 18
44. ength power and data transmission rate limitations Cable termination information Timeout description Detailed command descriptions Data output formats Optimizing data quality deployment orientation Deploying and recovering the MicroCAT Operation Description Notes The MicroCAT remains awake following response to the following commands StartSample GSample MMDDYYz and DDMMYYz The MicroCAT goes to sleep after responding to any other command minimizing power consumption CAUTION Do not run the pump dry The pump is water lubricated running it without water will damage it If briefly testing your system in dry conditions orient the MicroCAT to provide an upright the pump exhaust tubing This will provide enough lubrication to prevent pump damage during brief testing U shape for the plumbing Then fill the inside of the pump head with water via The MicroCAT s internal functions are supervised by two internal microcontrollers The acquisition microcontroller supervises measurement acquisition and setup and sampling functions The communication microcontroller supervises communication between the MicroCAT and computer These two microcontrollers allow for independent control of power usage by the communications and acquisition circuits Acquisition consumes more power but for shorter duration Communications protocols take proportionately more time but can be controlled separately and are ope
45. ep procedures for removing the MicroCAT s end caps 35 Section 5 Routine Maintenance and Calibration Pressure Sensor optional Maintenance Pressure sensor port plug guard removed CAUTION Do not put a brush or any object in the pressure port Doing so may damage or break the pressure sensor The pressure port plug has a small vent hole to allow hydrostatic pressure to be transmitted to the pressure sensor inside the instrument while providing protection for the pressure sensor keeping most particles and debris out of the pressure port Periodically approximately once a year inspect the pressure port to remove any particles debris etc 1 Unscrew the pressure port plug from the pressure port 2 Rinse the pressure port with warm de ionized water to remove any particles debris etc 3 Replace the pressure port plug Replacing Anti Foulant Devices Mechanical Design Change The AF24173 Anti Foulant Devices are installed in an anti foulant device cup that attaches to the conductivity cell intake and the pump exhaust Details are provided below on replacing the AF24173 Anti Foulant Devices This page provides the mechanical details for the SBE 37 SIP MicroCAT The following page which was developed for a MicroCAT that does not include an integral pump provides the precautions and handling details Anti foulant device caps CAUTION The anti foulant device cup is attached to the guard a
46. es SBE37 SI because the 37 SIP ses th came firmware as List below includes where applicable the 37 Sl command used to modify parameter e If the external voltage is below e firmware version serial number date 6 15 volts the following displays and time MMDDYY or in response to the status DDMMY Y and HHMMSS z or command WARNING 7iiMMDDYY or iiDDMMYY LOW BATTERY VOLTAGE and ii HHMMSS e sample interval time not applicable to SBE 37 SIP with RS 485 interface e output salinity with each sample iiOutputSal e output sound velocity with each sample iiOutputSV e output density with each sample iiOutputDensity e output depth with each sample iiOutputDepth e latitude for depth calculation iiLatitude e reference pressure iiRefPress only displays if no pressure sensor installed Note e A D cycles to average per sample The 37 SI and 37 SIP use the iiNCycles same firmware The internal pump e whether internal pump is installed is applicable to the 37 SIP only always installed in 37 SIP iiPumpInstalled Y e current temperature Example Display status for MicroCAT with ID 01 user input in bold S gt 01DS SBE37 SI 485 V 2 3 SERIAL NO 0011 07 Aug 2004 08 49 08 Zii MMDDYY ii HHMMSS sample interval 30 seconds not applicable to SBE 37 SI RS 485 output salinity with each sample iiOutputSal output sound velocity with
47. essure Sensor 2 1 9 the sample after a small amount of 4 2 2 time for the MicroCAT to wake up 8 2 7 run the pump and prepare to sample For example if the MicroCAT is programmed to wake up and sample at 12 00 00 the il cas ee oe i displayed time will indicate 12 00 01 Communications Timing which is the time to request and transmit data from or 12 00 02 each MicroCAT to the computer controller 0 5 seconds See Specifications above for the effect of iiNCycles on RMS noise See Section 4 Deploying and Operating MicroCAT for a description of iiNCycles 11 Section 3 Preparing MicroCAT for Deployment Section 3 Preparing MicroCAT for Deployment This section describes e installing software e testing power and communications for the MicroCAT and setting the MicroCAT ID Software Installation Recommended minimum system requirements for running SEASOFT Win32 Windows 2000 or later 500 MHz processor 256 MB RAM and 90 MB free disk space for installation If not already installed install SEATERM and other Sea Bird software Note programs on your computer using the supplied software CD It is possible to use the MicroCAT without SEATERM by sending l Insert the CD in your CD drive direct commands from a dumb termina or Ie ala emu ator Suen 2 Double click on Seasoft Win32 exe as Windows HyperTerminal 3 Follow the dialog box directions to install the software The
48. essure sensor is e iiFormat 2 an absolute sensor so its raw output mmmmm ttt tttt cc ccccc pppp ppp dddd ddd sss ssss VVVV VVV rrr rrrr includes the effect of atmospheric mm dd yyyy hh mm ss 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 28 Section 4 Deploying and Operating MicroCAT Optimizing Data Quality Deployment Orientation Note A pump clogged with sediment results in poor flushing causing poor quality data Shown with conductivity cell guard removed Bleed hole kc in duct Section A A Looking down on duct Background Information Sea Bird s general recommendation is to deploy the MicroCAT with the plumbing in an inverted U shape to reduce the ingestion of sediment A small bleed hole in the duct provides a way for air to exit the plumbing so that the pump will prime and operate In considering the effect of air on the pump it can be instructive to look at the amount of air in the water column e Case 1 The top 2 meters of the water column may contain a continuous supply of bubble
49. haust plumbing with a syringe or wash bottle Anti foulant device cap for pump exhaust plumbing Anti foulant device cap for conductivity cell intake Plumbing Maintenance Before each deployment clean the bleed hole with 0 4 mm diameter wire 13 mm long 0 016 inch diameter wire 0 5 inches long you can use 26 AWG wire and blow through it to ensure it is open A clogged bleed hole can trap air preventing the pump from functioning properly this will affect the data quality Bleed hole in duct Section A A Looking down on duct 34 Section 5 Routine Maintenance and Calibration Handling Instructions for Plastic ShallowCAT Option The MicroCAT s standard 7000 meter titanium housing offers the best durability with a modest amount of care The ShallowCAT option substitution of a 250 meter plastic housing saves money and weight However more care and caution in handling is required To get the same excellent performance and longevity for the plastic housing version and if you need to access the electronics and or remove the screws securing the conductivity cell guard to the housing not typically done by the customer observe the following precautions e The MicroCAT s end caps are retained by screws through the side of the housing The screw holes are close to the end of the housing Particularly in a cold environment where plastic is more brittle the potential for developing a cra
50. he housing 45 Appendix IIl Command Summar Appendix Ill Command Summary Note See Command Descriptions in Section 4 Deploying and Operating MicroCAT for detailed information and examples FUNCTION CATEGORY COMMAND DESCRIPTION Communication Microcontroller Commands Global Commands AData Command all MicroCATs to get average data from acquisition units and start next averaging cycle Communication microcontrollers hold averaged data in buffer until receiving Dataii GData Command all MicroCATs to get 1 sample Communication microcontrollers send command to acquisition microcontrollers to take sample Communication microcontrollers hold data in buffer until receiving Dataii StartSample Command all MicroCATs to get 1 sample Communication microcontrollers send command to acquisition microcontrollers to take sample and leave power on Communication microcontrollers hold data in buffer until receiving Dataii Send command once before using GSample GSample Command all MicroCATs to get last sample and then take new sample Communication microcontrollers send command to acquisition microcontrollers to send last sample and then take new sample and leave power on Communication microcontrollers hold last sample data in buffer until receiving Dataii MMDDYY mmddyy Set clock month day and year Follow with HHMMSS or it will not set date DDMMYY ddmmyy
51. iiCJ F iiWBOTC F iiCTCOR F iiCPCOR F iiP CalDate S iiPAO F iiPA1 F iiPA2 F iiPT CA0 F iiPTCA1 F iiPT CA2 F iiPT CBO F iiPTCB1 F iiPT CB2 F iiPOffset F iiRCalDate S iiRTCA0 F iiRTCA1 F iiRTCA2 F 27 S Temperature calibration date F Temperature AO F Temperature Al F Temperature A2 F Temperature A3 S Conductivity calibration date F Conductivity G F Conductivity H F Conductivity I F Conductivity J F Conductivity wbotc F Conductivity ctcor F Conductivity cpcor S Pressure calibration date F Pressure AO F Pressure Al F Pressure A2 F Pressure ptca0 F Pressure ptcal F Pressure ptca2 F Pressure ptcbO F Pressure ptcb1 F Pressure ptcb2 F Pressure offset S Real time clock calibration date F Real time clock AO F Real time clock Al F Real time clock A2 Section 4 Deploying and Operating MicroCAT Data Output Formats Each scan ends with a carriage return lt CR gt and line feed lt LF gt The exact format of the output varies depending on the command sent the user s selection for iiFormat and whether additional parameters salinity sound velocity etc are calculated with the data e iiFormat 0 raw hexadecimal data intended only for diagnostic use at Sea Bird e iiFormat 1 or 2 see below Notes for iiFormat 1 or 2 Data Output after sending Dataii ii MicroCAT ID m m MicroCAT serial number e f iFormat 1 default t temperature C ITS 90 ii mmmmm ttt tttt cc
52. in real time clock set the date and time Always set date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set for with MMDDYYz DDMMYY iiMMDDYY or iiDDMMYY Program the MicroCAT for the intended deployment see Section 3 Preparing MicroCAT for Deployment for connection information see information in this section on commands 1 Set the date and time Note that the date and time can be set globally for all MicroCATs online MMDDYY or DDMMYY to set date HHMMSS to set time or individually for each MicroCAT HiMMDDYY or iiDDMMYY to set date ii HHMMSS to set time 2 Establish the setup parameters 3 If the system will have multiple MicroCATs online verify the MicroCAT is set to Prompt ID to allow use of the Toolbar buttons and Menus A In the Configure menu select SBE 37 B Click on the COM Settings tab C For Modem RS485 ID click on Prompt ID D Click OK 30 Section 4 Deploying and Operating MicroCAT Deployment Tapped holes for mounting guide Anti foulant device cup Remove plugs CAUTION Do not use WD 40 or other petroleum based lubricants as 3 they will damage the connectors I O cable connector Locking sleeve For most in orientation shown Optional Sea Bird mounting clamp and guide
53. in22 8 12 SEATERM 8 12 13 main screen 13 toolbar buttons 14 Sensors 9 Setup example 18 ShallowCAT handling 35 Software 8 Software installation 12 Specifications 9 Storage 34 Super O Lube 42 System description 7 Index 56 T Terminal program 8 13 installation 12 Termination 20 Testing 12 Timeout description 20 Triton 42 Troubleshooting 40 U Unpacking MicroCAT 6 W Wiring 12
54. ions connector mating and maintenance conductivity cell cleaning and storage plumbing maintenance plastic housing handling instructions pressure sensor maintenance 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 Connector Mating and Maintenance CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors A mated connector does not require periodic disassembly or other attention Inspect a connector that is unmated for signs of corrosion product around the pins When remating 1 Lightly lubricate the inside of the cable connector with silicone grease DC 4 or equivalent 2 Standard Connector Install the cable connector aligning the raised bump on the side of the cable connector with the large pin pin 1 ground on the MicroCAT Remove any trapped air by burping or gently squeezing the connector near the top and moving your fingers toward the endcap OR MCBH Connector Install the cable connector aligning the pins 3 Place th
55. ivity ctcor ii y MU d fii CPCOR F F Conductivity cpcor ain iiPCalDate S S Pressure calibration date iiPA0 F F Pressure AO coefficients are initially iPAI F F Pressure Al factory set and TiiPA2 F FzPressure A2 should agree iiPTCA0 F F Pressure ptca0 with iiPTCA1 F F Pressure ptcal Calibration iiPTCA2 F F Pressure ptca2 Certificates TiiPTCB0 F F Pressure ptcb0 shipped with iPTCB1 F F Pressure ptcbl MicroCATs iiPTCB2 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 iiRTCA2 F F Real time clock A2 48 Appendix IV AF24173 Anti Foulant Device Appendix IV AF24173 Anti Foulant Device AF24173 Anti Foulant Devices supplied for user replacement are supplied in polyethylene bags displaying the following label AF24173 ANTI FOULANT DEVICE FOR USE ONLY IN SEA BIRD ELECTRONICS CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS ACTIVE INGREDIENT Bis tributyltin oxide OTHER INGREDIENTS 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 anti foulant devices Sea Bird Electronics Inc EPA Registration No 74489 1 1808 13
56. ix V Replacement Parts Appendix V Replacement Parts Part Number 801542 Part AF24173 Anti Foulant Device Application Description Bis tributyltin oxide device inserted into anti foulant device cup Quantity in MicroCAT 1 set of 2 232126 Anti foulant device cup Holds 2 AF24173 Anti Foulant Devices 231505 Anti foulant device cap Secures AF24173 Anti Foulant Device in cup 30984 Plug Seals end of anti foulant cap when not deployed keeping dust and aerosols out of conductivity cell during storage 30411 Triton X 100 Octyl Phenol Ethoxylate Reagent grade non ionic cleaning solution for conductivity cell supplied in 100 strength dilute as directed 30507 Parker 2 206N674 70 O ring O ring between end of conductivity cell and anti foulant device cup 60034 37 SI SIP spare hardware O ring kit Assorted hardware and O rings including e 30859 Machine screw 8 32 x 3 8 FH PH titanium secures housing to I O connector end cap housing to sensor end cap and guard to sensor end cap 30857 Parker 2 033E515 80 O ring I O connector end cap and sensor end cap O ring 30544 Machine screw 8 32 x 1 2 FH PH titanium secures guard to sensor end cap through holes that also secure housing to end cap e 30860 Machine screw 6 32 x 1 FH TI secures cable clamp half to flat area of sensor end cap e 30900 Machine
57. lectronics Inc EPA Registration No 74489 1 1808 136 Place Northeast EPA Establishment No 74489 W A 1 Bellevue WA 98005 50 Appendix IV AF24173 Anti Foulant Device PRECAUTIONARY STATEMENTS HAZARD TO HUMANS AND DOMESTIC ANIMALS DANGER Corrosive Causes irreversible eye damage and skin burns Harmful if swallowed Harmful if absorbed through the skin or inhaled Prolonged or frequently repeated contact may cause allergic reactions in some individuals Wash thoroughly with soap and water after handling PERSONAL PROTECTIVE EQUIPMENT USER SAFETY RECOMMENDATIONS Users should Remove clothing immediately if pesticide gets inside Then wash thoroughly and put on clean clothing Wear protective gloves rubber or latex goggles or other eye protection and clothing to minimize contact Follow manufacturer s instructions for cleaning and maintaining PPE If no such instructions for washables use detergent and hot water Keep and wash PPE separately from other laundry e Wash hands with soap and water before eating drinking chewing gum using tobacco or using the toilet ENVIRONMENTAL HAZARDS Do not discharge effluent containing this product into lakes streams ponds estuaries oceans or other waters unless in accordance with the requirements of a National Pollutant Discharge Elimination System NPDES permit and the permitting authority has been notified in writing prior to discharge Do not discharge effluent containi
58. ll product liability claims arising from the use or servicing of this system Table of Contents Table of Contents Section I Introduction sesccccinesscssievesedatsnnstcsuesecotecsseavsessoreecenesesveessvereos 5 About this Manual 5 cette ter ete rented ded 5 How to Contact Sea Bird 0 0 ceeeesscceseceeseeceseeeesceceeeeeneeceaeeesaeeceeeeeaeeceeeeseeens 5 QUICK Start eut eere eae col edb pene on vee hu cave o Rr HS 5 Unpacking MicroCAT nine needle Her eiaeia i oia 6 Section 2 Description of MicroCAT ecce esee eere eren ee eenee 7 System DesCEIDLOD ir eee eit rep He eco Perdre Pee ree RS 7 Specification iecit EP eet ede eere etd ttt 9 DimerisiOns id deett leet dive rt ed tetee cete eee ees 10 End Cap Connector eee Pee Ine tein est 10 Sample TMS eiecti eee pe aah ae 11 Section 3 Preparing MicroCAT for Deployment 12 Software Installation nee reete tertie o ii e onde dean 12 HE UNIES 12 Test and Setting ID coiere iro ez ete 13 Section 4 Deploying and Operating MicroCAT 17 Operation DesctIptlOn etri t eterne e n rte rece terere He 17 Setup and Sampling Example sees 18 Cable Length Baud Rate Data Transmission Rate and Power 19 Cable Length Baud Rate and Data Transmission Rate 19 Power and Cable Length e te ettet hes 19 C
59. n the housing If you cannot wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the housing 1 Reinstall the electronics A B Align the brass sleeve with the hole for the Phillips head screw and push the PCB assembly into the 10 position edge connector Drop the Phillips head screw into the hole and tighten gently 2 Reinstall the housing on the sensor end cap A Remove any water from the sensor end cap s O rings and mating surfaces in the housing with a lint free cloth or tissue Inspect the O rings and mating surfaces for dirt nicks and cuts Clean as necessary Apply a light coat of O ring lubricant Parker Super O Lube to the O rings and mating surfaces Carefully fit the housing onto the sensor end cap until the O rings have fully seated Reinstall the three flat Phillips head screws that connect the housing to the sensor end cap and the guard 3 Reinstall the I O connector end cap on the housing A Remove any water from the I O connector end cap s O rings and mating surfaces in the housing with a lint free cloth or tissue Inspect the O rings and mating surfaces for dirt nicks and cuts Clean as necessary Apply a light coat of O ring lubricant Parker Super O Lube to the O rings and mating surfaces Carefully fit the end cap into the housing until the O rings have fully seated Reinstall the two flat Phillips head screws that connect the end cap to t
60. nd connected with tubing to the cell Removing the guard without disconnecting the cup from the guard will break the cell If the guard must be removed 1 2 plugs removed Remove the two screws connecting the anti foulant device cup to the guard Remove the four Phillips head screws connecting the guard to the housing and sensor end cap Gently lift the guard away 36 Section 5 Routine Maintenance and Calibration Replacing Anti Foulant Devices SBE 37 SI SM IM The MicroCAT has an anti foulant device cup and cap on each end of the cell New MicroCATs are shipped with an Anti Foulant Device and a protective AF24173 plug pre installed in each cup Anti Foulant Device WARNING Wearing rubber or latex gloves follow this procedure to replace each Anti Foulant Device two AF24173 Anti Foulant Devices contain bis tributyltin oxide 1 Remove the protective plug from the anti foulant device cup Handle the devices only with rubber or latex gloves Wear eye 2 Unscrew the cap with a 5 s inch socket wrench protection Wash with soap and water after handling 3 Remove the old Anti Foulant Device If the old device is difficult to remove Read precautionary information on product label see Appendix IV before proceeding e Use needle nose pliers and carefully break up material It is a violation of US Federal Law e If necessary remove the guard to provide easier access to use this product in a manner
61. nd resulting calibration coefficients is in terms of 1 Place the MicroCAT in the orientation it will have when deployed psia However when outputting 2 In SEATERM pressure in engineering units the A Set the pressure offset to 0 0 tiiPOffset 0 MicroCAT outputs pressure relative to B Send iiTP to measure the MicroCAT pressure 30 times and transmit the ocean surface i e at the surface converted data decibars the output pressure is 0 decibars The MicroCAT uses the following equation 3 Compare the MicroCAT output to the reading from a good barometer at the to convert psia to decibars Pressure db pressure psia 14 7 0 689476 same elevation as the MicroCAT s pressure sensor Calculate offset barometer reading MicroCAT reading 4 Enter the calculated offset positive or negative in the MicroCAT s EEPROM using iiPOffset in SEATERM Offset Correction Example Absolute pressure measured by a barometer is 1010 50 mbar Pressure displayed from MicroCAT is 2 5 dbars Convert barometer reading to dbars using the relationship mbar 0 01 dbar Barometer reading 1010 50 mbar 0 01 10 1050 dbar The MicroCAT s internal calculations output gage pressure using an assumed value of 14 7 psi for atmospheric pressure Convert MicroCAT reading from gage to absolute by adding 14 7 psia to the MicroCAT s output 2 5 dbars 14 7 psi 0 689476 dbar psia 2 5 10 13 7 635 dbars Offset 1
62. ng 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 51 Appendix IV AF24173 Anti Foulant Device STORAGE AND DISPOSAL PESTICIDE STORAGE Store in original container in a cool dry place Prevent exposure to heat or flame Do not store near acids or oxidizers Keep container tightly closed PESTICIDE SPILL PROCEDURE In case of a spill absorb spills with absorbent material Put saturated absorbent material to a labeled container for treatment or disposal PESTICIDE DISPOSAL Pesticide that cannot be used according to label instructions must be disposed of according to Federal or approved State procedures under Subtitle C of the Resource Conservation and Recovery Act CONTAINER DISPOSAL Dispose of in a sanitary landfill or by other approved State and Local procedures Sea Bird Electronics label revised 01 31 05 52 Append
63. nsor is essentially free of pressure hysteresis Compensation of the temperature influence on pressure offset and scale is performed by the MicroCAT s CPU The MicroCAT is supplied with a powerful Win 2000 XP software package SEASOFT Win32 SEASOFT Win32 includes SEATERM a terminal program for easy communication and data retrieval SEATERM can send commands to the MicroCAT to provide status display data acquisition setup data display and capture and diagnostic tests Note that SEATERM does not process the data Section 2 Description of MicroCAT Specifications Note Pressure ranges are expressed in meters of deployment depth capability CAUTION See Section 5 Routine Maintenance and Calibration for Temperature Conductivity C S m Optional Pressure 0 to full scale range Measurement 5 to 435 0 to 7 Range 0 to 70 mS cm 20 100 350 600 1000 2000 3500 7000 meters Initial 0 002 0 0003 0 1 of Accuracy i 0 003 mS cm full scale range Typical 0 0003 0 004 of Stability 0 0003 0 003 mS cm full scale range per month i A 0 00001 0 002 of full Resolution 0 0001 0 0001 mS cm scale range 0 to 6 physical Sensor calibration over Ambient pressure 1 to 32 the range 2 6 to to full scale range Calibration 6 S m plus zero in 5 steps conductivity air Counter Quartz TCXO 2 ppm per year aging Time Base 5 ppm vs temperature 5 to 30 C Real Time Watch
64. o Communicate with MicroCAT sss 40 Problem 2 Unreasonable T C or P Data 40 Problem 3 Salinity Spikes seen 41 E ET i mh TSE M 42 Table of Contents Appendix I Functional Description crece ecce ee eee eren 43 SensOELs s ead ete epe tete ee pre ed ee rece e Popes ied ec dE eO 43 Sensor Interface aide eem oreet edere RES 43 Appendix II Electronics Disassembly Reassembly 44 Appendix III Command Summary eee eee eee eee eene nutn 46 Appendix IV AF24173 Anti Foulant Device eee 49 Appendix V Replacement Parts eee eee e eee eee ette etn en natn 53 In 55 Section 1 Introduction Section 1 Introduction This section includes contact information Quick Start procedure and photos of a standard MicroCAT shipment About this Manual This manual is to be used with the SBE 37 SIP MicroCAT Conductivity and Temperature Monitor pressure optional with RS 485 Serial Interface and integral Pump 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 m
65. or shows other signs of flooding or damage carefully secure it away from people until you have determined that abnormal internal pressure does not exist or has been relieved Pressure housings may flood under pressure due to dirty or damaged o rings or other failed seals When a sealed pressure housing floods at great depths and is subsequently raised to the surface water may be trapped at the pressure at which it entered the housing presenting a danger if the housing is opened before relieving the internal pressure Instances of such flooding are rare However a housing that floods at 5000 meters depth holds an internal pressure of more than 7000 psia and has the potential to eject the end cap with lethal force A housing that floods at 50 meters holds an internal pressure of more then 85 psia this force could still cause injury If you suspect the MicroCAT is flooded point it in a safe direction away from people and loosen the bulkhead connector very slowly at least 1 turn This opens an o ring seal under the connector Look for signs of internal pressure hissing or water leak If internal pressure is detected let it bleed off slowly past the connector o ring Then you can safely remove the end cap 2 Reinsert the protective plugs in the anti foulant device cup 32 Section 5 Routine Maintenance and Calibration Section 5 Routine Maintenance and Calibration This section reviews corrosion precaut
66. pikes Salinity is a function of conductivity temperature and pressure and must be calculated from C T and P measurements made on the same parcel of water Salinity is calculated and output by the 37 SIP if iiOutputSal Y Background information Salinity spikes in profiling i e moving fast sampling instruments typically result from misalignment of the temperature and conductivity measurements in conditions with sharp gradients This misalignment is often caused by differences in response times for the temperature and conductivity sensors and can be corrected for in post processing if the T and C response times are known In moored pumped instruments such as the 37 SIP MicroCAT the pump flushes the conductivity cell at a faster rate than the environment changes so the T and C measurements stay closely synchronized with the environment i e even slow or varying response times are not significant factors in the salinity calculation More typical causes of salinity spikes in a moored 37 SIP include Cause Solution 1 Severe external bio fouling can restrict flow through the conductivity cell to such an extent that the conductivity measurement is significantly delayed from the temperature measurement Cause Solution 2 For a MicroCAT moored at shallow depth differential solar heating can cause the actual temperature inside the conductivity cell to differ from the temperature measured by the thermistor Salinity spikes associated
67. put Formats iiFormat x x 0 output raw hex data for diagnostic use at Sea Bird x 1 default output converted data date format dd mmm yyyy hh mm ss x 2 output converted data date format mm dd yyyy hh mm ss iiOutputSal x x Y Calculate and output salinity psu with each sample x N default Do not iiOutputS V x x Y Calculate and output sound velocity m sec with each sample using Chen and Millero formula UNESCO Technical Papers in Marine Science 44 x N default Do not iiOutputDepth x x Y Calculate and output depth meters with each sample x N default Do not iiOutputDensity x x Y Calculate and output local density sigma kg m with each sample based on salinity temperature and pressure Sigma s t p density 1000 kg m x N default Do not iiLatitude x x latitude degrees to use in depth calculation Applicable only if iiOutputDepth Y 24 Section 4 Deploying and Operating MicroCAT Setup Commands continued iiRefPress x iiNCycles x iiPumpInstalled x x reference pressure gauge in decibars MicroCAT without installed pressure sensor uses this reference pressure in conductivity salinity sound velocity depth and density calculations Entry ignored if MicroCAT has pressure sensor x number of A D cycles to average range 127 default 4 For each measurement thermistor and optional pressure sensor sample iiNCycles time
68. raging T Output averaged data converted iiSAC 2 Continue averaging iiSAR Output averaged data raw Continue averaging 47 Appendix Ill Command Summary FUNCTION _ CATEGORY COMMAND DESCRIPTION A TT Measure temperature 30 times output converted data iTC Measure conductivity 30 times output converted data HiTP Measure pressure 30 times output converted data 2 T TTR Measure temperature 30 times output raw data Testing Measure conductivity 30 times output iiTCR raw data iiTPR Measure pressure 30 times output raw data iTR Measure real time clock frequency 30 times output data iiSS Output averaged data statistics iiPumpOn Run pump for 5 seconds Display calibration coefficients all coefficients iDC and dates listed below are included Use individual commands to modify a particular coefficient or date iiT CalDate S S Temperature calibration date Calibration iiTAO F F Temperature AQ Continued Coefficients iiTA1 F F Temperature Al A F floating iiTA2 F F Temperature A2 Acquisition point number iiTA3 F F Temperature A3 n S string with iiCCalDate S S Conductivity calibration date e m no spaces iiCG F F Conductivity G i Micro iiCH F F Conductivity H ID iiCI F F Conductivity I Dates shown iiCJ F F Conductivity J are when iiWBOTC F F Conductivity wbotc calms iiCTCOR F F Conduct
69. rated at lower power This also prevents communications protocols from interfering with measurement acquisition timing Commands can be directed to the MicroCAT communication microcontroller or its acquisition microcontroller A command prefix tii or ii is used to direct commands to a MicroCAT with the same ID ii ID e tii directs command to Communication Microcontroller e ii directs command to Acquisition Microcontroller Global commands do not require a prefix and are recognized by all MicroCATs attached to the RS 485 interface MicroCAT Communication Microcontroller Get Data Set and get MicroCAT ID MicroCAT Acquisition Microcontroller Status Setup Polled sampling Averaging Testing Calibration coefficients Status Global commands to get data set clock and power off Set baud rate Set timeouts Each time the MicroCAT takes a sample its integral pump runs for 0 5 seconds before sampling The pump flushes the previously sampled water from the conductivity cell and brings a new water sample quickly into the cell Water does not freely flow through the conductivity cell between samples minimizing fouling 17 Section 4 Deploying and Operating MicroCAT Setup and Sampling Example An example follows for a system with three MicroCATs IDs 01 02 and 03 online Note that the MicroCATs response to each command is not shown in the example Review the commands described in Command Descriptions and the example b
70. s in rapid succession and average values are recorded during this time conductivity measurement is also integrated and average is recorded Increasing iiNCycles increases measurement resolution and time and power required for measurement Sea Bird recommends keeping iiNCycles at default of 4 providing optimum trade off between low RMS noise and power requirements See Specifications and Sample Timing in Section 2 Description of MicroCAT x Y Internal pump is installed only valid setting for 37 SIP x N Not applicable to 37 SIP Polled Sampling Commands Note The MicroCAT has a buffer that stores the most recent data sample Data in the buffer is erased upon removal or failure of power These commands are used by an external controller to request a sample from the MicroCAT Tii TS Ti TSR iiTSS iiSL iiSLT 25 Run pump take sample and output converted data Run pump take sample and output raw data Run pump take sample and output converted data Output converted data from last sample Output converted data from last sample then run pump and take new sample Section 4 Deploying and Operating MicroCAT Averaging Commands These commands are used by an external controller to request a sample from Solo the MicroCAT These commands related to averaging are typically used only A for customized acquisition AData iiGA Start averaging data
71. s head titanium machine screw connecting the housing to the sensor end cap D Remove the housing by pulling it out firmly and steadily It may be necessary to twist or rock the housing back and forth to loosen it sensor end cap Screws securing sensor end cap shown partially removed 3 The electronics are on a sandwich of three rectangular PCBs These PCBs are assembled to a bulkhead To remove the PCB assembly A Remove the Phillips head screw on the bulkhead that fits inside the small diameter brass sleeve The Phillips head screw is a 198 mm 7 8 inch threaded rod with Phillips head B Pullout the PCB assembly by carefully grasping the bulkhead and pulling The assembly will pull away from the 10 position edge connector used to connect to the cells Brass sleeve Screw securing lectronics 44 A endix Il Electronics Disassembly Reassembl Reassembly Align brass sleeve with hole Note If the rod will not tighten the PCBs have not fully mated or are mated in reverse Note Before delivery a desiccant package is inserted in the housing and the electronics chamber is filled with dry Argon gas These measures help prevent condensation To ensure proper functioning 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 ope
72. s injected into the system by breaking waves In this area the ability to continuously eliminate air from the system throughout the deployment is of prime concern e Case 2 The next 30 meters of the water column is not typically affected by bubbles from breaking waves Without a bleed hole it could take a few days to weeks after deployment for the air to clear out of the system in an inverted U shape However once the air was bled no more air would be injected into the plumbing e Case 3 Below 30 meters without a bleed hole it could take only a few hours to a day for the air to clear out of the system in an inverted U shape As in Case 2 once the air was bled no more air would be injected into the plumbing Note that the bleed hole while providing a way for air to exit the plumbing also provides a little more ventilation of the system this ventilation will cause a slight decrease in the concentration of anti foulant in the water held in the plumbing between samples In our judgment and the experience of customers the risk of poor data due to sediment accumulation is usually greater than the risk of slightly reduced effectiveness of the anti foulant or is at least a reasonable trade off Deployment Recommendations e Most deployments Deploy the MicroCAT with the plumbing in an inverted U shape as shown in the photos allowing air to exit the plumbing through the bleed hole e Deployments where severe bio fouling is th
73. same power supply V IR gt 7 volts 12 volts 0 50 Amps 4 MicroCATs 0 0107 ohms foot 2 cable length gt 7 volts 5 volts gt 0 50 Amps 4 MicroCATs 0 0107 ohms foot 2 cable length Cable length 116 ft 35 meters to MicroCAT furthest from power source 19 Section 4 Deploying and Operating MicroCAT Optional RS 485 terminating resistor solder points NN rus OF oP Bu bot on st Cable Termination The MAX1483 transceivers used in the MicroCAT are designed for bi directional data communications on multi point bus transmission lines To minimize reflections terminate the line at both ends in its characteristic impedance Also keep stub lengths off the main line as short as possible although the slew rate limited MAX 1483 is more tolerant of imperfect termination than standard RS 485 ICs Hit ttt mum Ina Hu ug ion coe es 101988 nip gna mn eeo00d eooo000a00 oo eo oo oo PUTTY Lut Wi vn 800 eo B o f eo oo 60000000 E Gres 15 ME Timeout Description The MicroCAT has a timeout algorithm If the MicroCAT does not receive a command for 2 minutes it powers down its communication circuits This places the MicroCAT in quiescent state drawing minimal current To re establish control click Connect on the Toolbar The system responds with the S prompt Command Descriptions Note For reliable operation all commands may ne
74. screw 4 20 x 2 hex head titanium secures mounting clamp e 30633 Washer 1 4 split ring lock titanium for screw 30900 e 30634 Washer 1 4 flat titanium for screw 30900 e 31019 O ring 2 008 N674 70 for screw 30900 retains mounting clamp hardware e 31040 Screw 8 32 x 1 FH TI secures cable guide base to I O connector end cap Continued on next page 53 Appendix V Replacement Parts Continued from previous page Part Number Part Application Description Quantity in MicroCAT 801385 4 pin RMG 4FS standard connector to 9 pin DB 9S I O cable with power leads 2 4 m 8 ft From MicroCAT to computer 801206 4 pin MCIL 4FS wet pluggable connector to 9 pin DB 9S I O cable with power leads 2 4 m 8 ft From MicroCAT to computer 171888 25 pin DB 25S to 9 pin DB 9P cable adapter For use with computer with DB 25 connector 17046 1 4 pin RMG 4FS standard connector dummy plug with locking sleeve For when cable not being used 171398 1 17043 171192 4 pin MCDC 4FS wet pluggable connector dummy plug with locking sleeve Locking sleeve for RMG cable Locking sleeve for MCIL cable For when cable not used Locks cable plug in place Locks cable plug in place 54 Index A About Sea Bird 5 Air bleed hole 29 34 Anti Foulant Device 49 removal before shipping to Sea Bird 38 replacing 36
75. se enter the following setup information IMPORTANT To complete setup review the configuration setting for your instrument by selecting your instrument type from the Configure menu list Instrument Type s2137 Mj COM Port f x 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 di SeaTerm Version 1 06 SeaTerm _ oy x ty File Configure Communications Utilities Data View Help Menus laj xl Command Data Echo Area Capture Status bar to file status grayed out if not capturing Upload parameter Note There is at least one way and as many as three ways to enter a command osx ve comi semp bby scan tange coming ru Baud rate data bits Instrument e Manually type a command in EPROM version stop bits and parity Command Data Echo Area e Use a menu to automatically generate a command e Menus Contains tasks and frequently executed instrument e Use a Toolbar button to commands automatically generate e Toolbar Contains buttons for frequently executed tasks and a command instrument commands All tasks and commands accessed through the Toolbar are also available in the Menus To display or hide the Toolbar select View Toolbar in the View menu Grayed out Toolbar buttons are not applicable Eds EOS ENDS ane e Command Data Echo Area Echoes a command executed using
76. tinum or copper elements the thermistor is insensitive to shock 38 Section 5 Routine Maintenance and Calibration Pressure Sensor optional Calibration The optional strain gauge pressure sensor is a mechanical diaphragm type with an initial static error band of 0 05 Consequently the sensor is capable of meeting MicroCAT s 0 10 error specification with some allowance for aging and ambient temperature induced drift Pressure sensors show most of their error as a linear offset from zero A technique is provided below for making small corrections to the pressure sensor calibration using the offset iiPOffset calibration coefficient term by comparing MicroCAT pressure output to readings from a barometer Allow the MicroCAT to equilibrate in a reasonably constant temperature environment for at least 5 hours before starting Pressure sensors exhibit a transient change in their output in response to changes in their environmental Note temperature Sea Bird instruments are constructed to minimize this by thermally The MicroCAT s pressure sensor is an decoupling the sensor from the body of the instrument However there is still absolute sensor so its raw output some residual effect allowing the MicroCAT to equilibrate before starting will iiFormat 0 includes the effect of provide the most accurate calibration correction atmospheric pressure 14 7 psi As shown on the Calibration Sheet Sea Bird s calibration a

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