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SBE 37-SM MicroCAT

1. 15 20 25 Pressure PSIA 30 35 40 45 SBE 37 5 MicroCAT Conductivity and Temperature Recorder with RS 232 Interface Ad User s Manual Sea Bird Electronics Inc 1808 136 Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Fax 425 643 9954 E mail seabird seabird com Manual Version 020 11 17 03 Website www seabird com Firmware Version 2 5 and later 16 17 Limited Liability Statement Extreme care should be exercised when using or servicing this equipment It should be used or serviced only by personnel with knowledge of and training in the use and maintenance of oceanographic electronic equipment SEA BIRD ELECTRONICS INC disclaims all product liability risks arising from the use or servicing of this system SEA BIRD ELECTRONICS INC has no way of controlling the use of this equipment or of choosing the personnel to operate it and therefore cannot take steps to comply with laws pertaining to product liability including laws which impose a duty to warn the user of any dangers involved in operating this equipment Therefore acceptance of this system by the customer shall be conclusively deemed to include a covenant by the customer to defend indemnify and hold SEA BIRD ELECTRONICS INC harmless from all product liability claims arising from the use or
2. 14 Installing Batteries oet E pe 14 Software Installation e tt ee RHET EHI EH gne ehe aps 16 Power and Communications 16 Test Setup 16 M M 17 Section 4 Deploying and Operating MicroCAT 21 Sampling dta te 21 Polled Sampling 21 Autonomous Sampling Logging 22 Serial Line Synchronization Serial Line sss 23 Real Time Data Acquisition esee 24 Timeout Description eiit tet dee rH HERD S 25 Command Descriptions eren 25 Data Output terree rette etie ee Pee rine ee Penna 33 Setup for Deployment e eet eade ets 34 Deployment petente denesaveide ind 35 hoo mE 36 Physical Handling osc secs esee etel been 36 Uploading Data eae ese erede ie t ede eSI 37 Section 5 Routine Maintenance and Calibration 41 Corrosion Precautions 41 Connector Mating and 41 Conductivity Cell Maintenance 42 Routine Rinsing after sss 42 Cleanings uc eR Ree Bea x Rec tue dedere cd 42 Pressu
3. Depth salt water m 0 05 0 10 0 15 0 20 0 0 0 5 1 0 1 5 20 25 3 0 zd 40 46 6 0 Time Elapsed minutes Thermal Transient Pressure sensors exhibit a transient change in their output in response to changes in their environmental temperature so the thermal transient resulting from submersion in water must be considered when deploying the instrument During calibration the sensors are allowed to warm up before calibration points are recorded Similarly for best depth accuracy the user should allow the CTD to warm up for several minutes before beginning a profile this can be part of the soak time in the surface water Soaking also allows the CTD housing to approach thermal equilibrium minimizing the housing s effect on measured temperature and conductivity and permits Beckman or YSI type dissolved oxygen sensor if present to polarize Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 CELE Bellevue WA 98005 E mail seabird seabird com USA Web www seabird com APPLICATION NOTE NO 42 Revised September 2001 ITS 90 TEMPERATURE SCALE Beginning January 1995 Sea Bird temperature calibration certificates list a new set of coefficients labeled g h i j and FO These coefficients correspond to ITS90 T90 temperatures and should be entered by those researchers working with SEASOFT DOS Versions 4 208 and higher and all versions of SEASOFT Win32 For the convenience o
4. Battery D shaped notch Remove the battery pack assembly from the housing Remove the large Phillips head screw and lock washer from the upper PCB Lift the battery pack assembly straight out of the housing using the handle Remove the two small Phillips head screws and lock washers from the upper PCB and lift the upper PCB off the brass sleeve Insert each 9 volt battery onto the lower PCB one at a time banana plug end first Ensure each battery is fully inserted Reinstall the upper PCB A Press the upper PCB onto the battery pack assembly aligning the screw holes and mating banana plugs to the batteries Ensure the banana plugs are fully inserted into the batteries Re fasten the upper PCB to the battery pack assembly with the two small screws and lock washers Replace the battery pack assembly in the housing A Align the D shaped opening in the upper PCB with the D shaped notch on the shaft Lower the assembly slowly into the housing and once aligned push gently to mate the banana plugs on the battery compartment bulkhead with the lower PCB A post at the bottom of the battery compartment mates with a hole in the battery pack s lower PCB to prevent improper alignment Secure the assembly to the shaft using the large Phillips head screw and lock washer Ensure the screw is tight to provide a reliable electrical contact Reinstall the I O connector end cap A Remove any water
5. 9 616162 001 CPcor 9 5700e 008 h 1 300081 001 CTcor 3 2500e 006 1 1 322426e 004 1 3316 005 1 2 909852 005 BATH TEMP BATH SAL BATHCOND INSTFREO COND RESIDUAL ITS 90 PSU Siemens m Hz Siemens m Siemens m 22 0000 0 0000 0 00000 2721 58 0 00000 0 00000 1 0000 34 7561 2 97131 5496 96 2 917132 0 00001 4 5000 34 7355 3 27785 5706 42 3 277784 0 00001 15 0000 34 6909 4 25785 6328 95 4 25785 0 00000 18 5000 34 6813 4 60239 6533 45 4 60239 0 00000 24 0000 34 6707 5 15936 6850 83 2 15937 0 00001 29 0000 34 6644 5 68023 7134 52 5 68023 0 00001 f INST FREQ sqrt 1 0 WBOTC t 1000 0 Conductivity g hf if jf 1 8t Siemens meter t temperature C p pressure decibars 6 CTcor e CPcor Residual instrument conductivity bath conductivity Date Slope Correction 19 Mar 04 1 0000000 0 001 0 000 0 001 1 1 1 0 1 2 5 6 7 3 4 Conductivity Siemens m Residual PPM SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SENSOR SERIAL NUMBER 3341 CALIBRATION DATE 19 Mar 04 COEFFICIENTS 9 999822e 001 1 686132e 006 3 022745 008 rtca0 rtcal rtca2 BATH TEMP ITS 90 1 000 4 500 15 000 18 500 24 000 29 000 32 500 0 C Oro 3 RTC FREO Hz 9999840 999
6. Note Do not send 0 until all data has been uploaded SAMPLENUM O0 does not delete the data it just resets the data pointer If you accidentally send this command before uploading recover the data as follows 1 Set SAMPLENUM x where x is your estimate of number of samples in memory 2 Upload data If x is more than actual number of samples in memory data for non existent samples will be bad random data Review uploaded data file carefully and delete any bad data 3 If desired increase x and upload data again to see if there is additional valid data in memory REFPRESS x NAVG x SAMPLENUM x x reference pressure gauge in decibars MicroCAT without installed pressure sensor uses this reference pressure in conductivity and optional salinity and sound velocity calculations Entry ignored 1f MicroCAT includes pressure sensor x number of measurements 1 1000 to take and average for each sample Default 1 x sample number for first sample when sampling begins After all previous data has been uploaded from MicroCAT set sample number to 0 before starting to sample to make entire memory available for recording If not reset to 0 data will be stored after last recorded sample QS Quit session and place MicroCAT in quiescent sleep state Main power is turned off Data logging and memory retention are not affected Logging Commands Note If t
7. and close the cell with Tygon Also remember to keep the Tygon in a clean place so that it does not pick up contaminants while the instrument is in use Experience indicates that in normal intermittent use such as in CTD profiling operations drift rates of 0 0003 S m 0 003 mmho cm or less per month can be expected without any cleaning if the procedures described above are followed The conductivity cell is primarily made of glass and therefore is subject to breakage if mishandled It is especially important to use the right size Tygon tubing since if you use tubing with a too small ID it will be difficult to remove the tubing and the cell end may break if excessive force is used The correct size tubing for all instruments produced since 1980 is 7 16 ID 9 16 OD 1 16 wall Instruments shipped prior to 1980 had smaller retaining ridges at the ends of the cell and 3 8 ID Tygon is required for these older instruments It is better to use Tygon brand than other plastic tubing since it tends to remain flexible over a wide temperature range and with age Do not insert any sort of cleaning probe e g Q tip into the interior of the cell If the platinized black electrode surface is touched it may be damaged and require the electrodes to be replatinized If a cell is filled with water do not subject it to low temperatures that will freeze the water and break the cell Remove the water before shipment during the winter or to polar
8. Conductivity calibration certificates now show an equation containing the appropriate pressure dependent correction term which has been derived from mechanical principles and confirmed by field observations The new equation is Conductivity Siemens meter af bf dt 10 1 9 57 107 where a b c d and m are the calibration coefficients f is the instrument frequency kHz t is the water temperature C and p is the water pressure decibars The new equation should be used for all Sea Bird fine structure conductivity instruments including the SBE 4 Conductivity Sensor SBE 9plus CTD Underwater Unit which employs the SBE 4 sensor SBE 16 16 5 SEACAT SBE 19 19plus SEACAT Profiler and SBE 25 SEALOGGER Sea Bird CTD data acquisition display and post processing software SEASOFT beginning with Version 3 2 will automatically implement this equation DISCUSSION Conductivity cells do not measure the specific conductance the desired property but rather the conductance of a specific geometry of water the ratio of the cell s length to its cross sectional area cell constant is used to relate the measured conductance to specific conductance Under pressure the conductivity cell s length and diameter are reduced leading to a lower indicated conductivity The magnitude of the effect is not insignificant reaching 0 0028 S m 0 028 mS cm at 6800 dBars The compressibility of the borosilicate glass
9. Example 2 INTERVAL 10 NAVG 8 MicroCAT has no pressure sensor Sampling time 1 44 seconds NAVG 0 86 seconds 1 44 8 0 86 8 32 seconds 8 32 seconds 2 seconds for quiescent state 10 32 seconds gt 10 second sample interval Therefore the MicroCAT internally sets the sampling rate to INTERVAL actual required sampling time 10 seconds 8 32 seconds 18 32 seconds Polled Sampling Time from receipt of take sample command to beginning of reply e With pressure 0 45 seconds NAVG 1 26 seconds Without pressure 0 35 seconds 0 86 seconds Minimum time approximate required from beginning of one sample to beginning of next sample if NAVG 1 After TS command 2 seconds After TSSON command 3 seconds After TSS command 5 seconds Serial Line Sync Sampling Power on time for each sample e With pressure 1 55 seconds NAVG 1 26 seconds e Without pressure 1 44 seconds NAVG 0 86 seconds 12 28 Section 2 Description of MicroCAT Battery Endurance Notes The battery pack has a nominal capacity of 7 2 amp hours For planning e f the MicroCAT is logging purposes Sea Bird recommends using a conservative value of 5 amp hours data and the battery voltage is less than 6 15 volts for Current consumption is as follows ten consecutive scans the e Sampling acquisition current is 25 milliamps Mi AT halts loggi d e e Quiescent current is less th
10. If this procedure is not followed precisely any water vapor driven off during reactivation may be re adsorbed during cooling and or handling 5 After the bags of desiccant have been allowed to cool in an airtight desiccator they may be removed and placed in either an appropriate type polyliner tightly sealed to prevent moisture adsorption or a container that prevents moisture from coming into contact with the regenerated desiccant NOTE Use only a metal or glass container with a tight fitting metal or glass lid to store the regenerated desiccant Keep the container lid closed tightly to preserve adsorption properties of the desiccant Sud Chemie Performance Packaging SUD CHEMIE 101 Christine Dr Creating Performance Technology Belen New Mexico 87002 GEMS Phone 505 864 6691 Fax 505 864 9296 ISO 9002 CERTIFIED MATERIAL SAFETY DATA SHEET August 13 2002 SORB IT Packaged Desiccant SECTION I PRODUCT IDENTIFICATION Trade Name and Synonyms Silica Gel Synthetic Amorphous Silica Silicon Dioxide Chemical Family Synthetic Amorphous Silica Formula 102 H20 SECTION Il HAZARDOUS INGREDIENTS Components in the Solid Mixture COMPONENT CAS No ACGIH TLV PPM OSHA PEL Amorphous 63231 67 4 gt 99 PEL 20 RESPIRABLE LIMIT NONE Silica TLV 5 HAZARD IRRITANT Synthetic amorphous silica is not to be confused with crystalline si
11. MicroCAT will only accept the following commands DS DC TS TSR SL SLT SLTR QS and STOP Additionally if the MicroCAT is logging it cannot be interrupted during measurements to accept any commands If the MicroCAT is logging and appears unresponsive it may be in the middle of taking measurements continue to try to establish communications Note that if NAVG is large in comparison to INTERVAL there will only be a very short period of time between samples when the MicroCAT can be interrupted this may make it difficult to interrupt or stop sampling Example Autonomous Sampling user input in bold Wake up MicroCAT Set sample number to 0 to overwrite previous data in memory Set up to sample every 60 seconds with 4 measurements averaged per sample Store time and date with samples and do not transmit real time data to computer Set up to automatically start logging on 10 January 2004 at 12 00 00 Send power off command after all parameters are entered system will automatically wake up and power down for each sample click Connect on Toolbar to wake up S gt SAMPLENUM 0 S gt INTERVAL 60 S gt NAVG 4 S gt STORETIME Y S gt TXREALTIME N S gt STARTMMDDYY 011004 S gt STARTHHMMSS 120000 S gt STARTLATER 508 After logging begins look at data from last sample to check results and then power down click Connect on Toolbar to wake up S gt SL 5208 When ready to upload all data to computer wake up MicroCAT stop
12. Polled Sampling On command the MicroCAT takes NAVG measurements averages the measurements and sends the averaged data to the computer Storing of data in the MicroCAT s FLASH memory is dependent on the particular command used Example Polled Sampling user input in bold Wake up MicroCAT Set the number of measurements per sample to 4 Command MicroCAT to take a sample and send converted data to computer do not store data in MicroCAT s memory Send power off command to MicroCAT click Connect on Toolbar to wake up S gt NAVG 4 S gt TS 5085 21 37 Section 4 Deploying and Operating Note Use STOP to e stop logging e stop waiting to start logging after STARTLATER has been sent Once STOP is sent the MicroCAT will accept all commands again Autonomous Sampling Logging commands The MicroCAT wakes up samples data at pre programmed intervals taking NAVG measurements for each sample and averaging the measurements stores the averaged data in its FLASH memory and powers off enters quiescent state Logging is started with STARTNOW or STARTLATER and is stopped with STOP Transmission of real time averaged data to the computer is dependent on The MicroCAT has lockout feature to prevent unintended interference with sampling If the MicroCAT is logging or waiting to start logging STARTLATER has been sent but logging has not started yet the
13. dering eres 2 The SBE 37 5 MicroCAT is a high accuracy conductivity and temperature pressure optional recorder with internal battery and memory Designed for moorings or other long duration fixed site deployments the MicroCAT includes a standard serial interface and non volatile FLASH memory Construction is of titanium and other non corroding materials to ensure long life with minimum maintenance and depth capability is 7000 meters 23 000 feet Calibration coefficients are stored in EEPROM and uploaded data is presented in ASCII engineering units The data always includes Conductivity Temperature and Pressure if optional pressure sensor is installed If desired time can be added to each scan and the MicroCAT can calculate and output salinity and sound velocity Chen Millero The MicroCAT retains the temperature and conductivity sensors used in our time proven SEACAT products however new acquisition techniques provide increased accuracy and resolution while reducing power consumption Electrical isolation of the conductivity electronics eliminates any possibility of ground loop noise 2 The MicroCAT s unique internal field conductivity cell permits the use of expendable anti foulant devices The aged and pressure protected thermistor has a long history of exceptional accuracy and stability The MicroCAT s optional pressure sensor developed by Druck
14. e sample interval time INTERVAL e number of samples in memory and available sample space in memory e data acquired with autonomous sampling to be transmitted real time TXREALTIME e output salinity with each sample OUTPUTSAL e output sound velocity with each sample OUTPUTSV e store date and time with each sample acquired with autonomous sampling STORETIME e number of measurements to average for each sample NAVG e reference pressure REFPRESS only displays if no pressure sensor installed e serial sync mode state SYNCMODE e sync mode wait time SYNCWAIT e current temperature Logging status can be logging not started logging data not logging waiting to start at not logging received stop command not logging low battery unknown status Example Display status for MicroCAT user input in bold S DS SBE37 SM V 2 5 SERIAL NO 2165 20 Nov 2003 08 49 08 logging data sample interval 30 seconds samplenumber 52 free 190598 do not transmit real time data do not output salinity with each sample do not output sound velocity with each sample store time with each sample number of samples to average 4 reference pressure 0 0 db serial sync mode disabled wait time after serial sync sampling 120 seconds temperature 7 54 deg C 26 42 Section 4 Deploying and Operating MicroCAT Notes e DDMMYY and MMDDYY are
15. 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 open the housing If you cannot wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the housing Note that opening the battery compartment does not affect desiccation of the electronics Sight down into the MicroCAT housing to find the hole into which the Phillips head screw threads The hole is at the bottom of the housing next to the edge connector The small diameter brass sleeve between two of the PCBs guides the screw into the hole Align this sleeve with the hole Guide the PCB assembly into the housing and push the assembly until the edge connector is fully inserted A gentle resistance can be felt during the last 3 mm 1 8 inch of insertion as the PCB assembly mates to the edge connector Drop the Phillips head screw into the hole and tighten gently If it is difficult to align the cards obtain a 305mm 12 inch length of 6 32 threaded rod Thread the end of this rod into the hole at the bottom of the housing next to the edge connector B Slide the PCB assembly s small diameter brass sleeve
16. 0000 0000 0000 0000 0000 0000 0000 1 1 So OS OO C2 C3 Temperature ITS 90 1 a0 al n n 2 01 a3 In n 273 15 C Residual instrument temperature bath temperature Date Delta T mdeg C 0 02 19 Mar 04 0 00 0 01 0 00 e 0 01 0 02 1 1 5 1 41 5 0 5 10 25 30 35 Temperature Degrees C 13 Residual S m SEA BIRD ELECTRONICS INC SENSOR SERIAL NUMBER 3438 CALIBRATION DATE 19 Mar 04 COEFFICIENTS 9 h 3 1 039911 000 1 466293e 001 1 653317 004 3 583160 005 118 90 22 1 4 15 18 24 29 32 0000 000 500 000 500 000 000 500 OOO PSU 0 0000 34 7561 34 7355 34 6909 34 6813 34 6707 34 6644 34 6605 gt gt WD 00000 05189 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SBE 37 CONDUCTIVITY CALIBRATION DATA PSS 1978 C 35 15 0 4 2914 Siemens meter CPcor 9 5700 008 CTcor 3 2500 006 WBOTC 1 5160e 005 BATH SAL BATH COND INST FREQ INST COND RESIDUAL Siemens m 0 97131 27785 25785 60239 15936 68023 Hz Siemens m Siemens m 2665 24 0 00000 0 00000 5228 31 2 97131 0 00000 5423 81 3 277871 0 00002 6005 51 4 25783 0 00003 6196 82 4 60237 0 00002 6493 92 5 15937
17. 07 0 52 0 7000 7 0 0 14 1 05 The meaning of accuracy as it applies to these sensors is that the indicated pressure will conform to true pressure to within maximum error expressed as equivalent depth throughout the sensor s operating range Note that a 7000 meter sensor reading 7 meters at the water surface is operating within its specifications the same sensor would be expected to indicate 7000 meters 7 meters when at full depth Resolution 18 the magnitude of indicated increments of depth For example a 7000 meter sensor on an SBE 25 resolution 1 05 meters subjected to slowly increasing pressure will produce readings approximately following the sequence 0 1 00 2 00 3 00 meters Resolution is limited by the design configuration of the CTD s A D converter For the SBE 25 this restricts the possible number of discrete pressure values for a given sample to somewhat less than 8192 13 bits an approximation of the ratio 1 7000 is the source of the SBE 25 s 0 015 resolution specification Note SEASOFT and other CTD software presents temperature salinity and other variables as a function of depth or pressure so the CTD s pressure resolution limits the number of plotted data points in the profile For example an SBE 25 with a 7000 meter sensor might acquire several values of temperature and salinity during the time required to descend from 1 to 2 meters depth However all the temperature and salinity valu
18. Guard removal 45 L Limited liability statement 2 M Maintenance 41 Memory 10 Modes See Sampling modes P Parts replacement 58 Power 13 external 10 13 Pressure sensor maintenance 44 0 Quick start 5 R Real time setup baud rate 24 cable length 24 Recovery physical handling 36 uploading data 37 Replacement parts 58 5 Sample timing 12 Sampling modes 21 autonomous 22 polled 21 serial line sync 23 SBE Data Processing 9 16 40 SEASOFT DOS 9 SEASOFT Win32 9 16 SEATERM 9 16 17 37 main screen 17 toolbar buttons 18 Sensors 10 Shipping precautions 7 Software 9 Software installation 16 Specifications 10 Storage 42 System description 8 Index 61 T Terminal program 9 installation 16 Testing 16 Timeout description 25 U Unpacking MicroCAT 6 Uploading data 37 W Wiring 16 76 77 SBE 37 5 RS 232 MicroCAT Reference Sheet see SBE 37 SM MicroCAT User s Manual for complete details Sampling Modes Autonomous sampling At pre programmed intervals MicroCAT wakes up samples stores data in FLASH memory and powers off Polled sampling The MicroCAT takes one sample and sends data to computer Polled sampling is useful for integrating MicroCAT with satellite radio or wire telemetry equipment Serial line sync The MicroCAT wakes up samples stores data in FLAS
19. Inc has a superior new design that is entirely different from conventional silicon types in which the deflection of a metallic diaphragm is detected by epoxy bonded silicon strain gauges The Druck sensor employs a micro machined silicon diaphragm into which the strain elements are implanted using semiconductor fabrication techniques Unlike metal diaphragms silicon s crystal structure is perfectly elastic so the sensor is essentially free of pressure hysteresis Compensation of the temperature influence on pressure offset and scale is performed by the MicroCAT s CPU SENSOR INTERFACE ELECTRONICS Temperature is acquired by applying an AC excitation to a hermetically sealed VISHAY reference resistor and an ultra stable aged thermistor drift rate typically less than 0 002 C per year The ratio of thermistor resistance to reference resistance is determined by a 24 bit A D converter this A D also processes the pressure sensor signal Conductivity is acquired using an ultra precision Wien Bridge oscillator A high stability reference crystal with a drift rate of less than 2 ppm year is used to count the frequency from the oscillator COMMUNICATIONS AND INTERFACING The MicroCAT communicates directly with a computer via standard RS 232 interface Data can be uploaded at up to 38 4K baud Real time data can be transmitted at distances of up to 800 meters 2600 feet at 1200 baud simultaneously with recording An optional RS 485 interface a
20. SBE 16 l6plus IM 19plus and 49 can output raw or converted data RELATIONSHIP BETWEEN PRESSURE AND DEPTH Despite the common nomenclature CTD Conductivity Temperature Depth all CTDs measure pressure which is not quite the same thing as depth The relationship between pressure and depth is a complex one involving water density and compressibility as well as the strength of the local gravity field but it is convenient to think of a decibar as essentially equivalent to a meter an approximation which is correct within 396 for almost all combinations of salinity temperature depth and gravitational constant 1 89 SEASOFT offers two methods for estimating depth from pressure e For oceanic applications salinity is presumed to be 35 PSU temperature to be 0 C and the compressibility of the water with its accompanying density variation is taken into account This is the method recommended in UNESCO Technical Paper No 44 and is a logical approach in that by far the greatest part of the deep ocean water column approximates these values of salinity and temperature Since pressure is also proportional to gravity and the major variability in gravity depends on latitude the user s latitude entry is used to estimate the magnitude of the local gravity field gt SBE l6plus 16plus IM 19plus 25 and 49 User is prompted to enter latitude if Depth salt water is selected as a display variable in SEASAVE or as an output variabl
21. Stop logging or stop waiting to start logging Press Enter key to get 5 prompt before entering STOP Must send STOP before uploading data TS Take sample output converted data Data not stored in FLASH memory Polled TSR Take sample output raw data Data not stored in FLASH memory All samples consist TSS Take sample store in FLASH memory output converted data Turn power off of NAVG TSSON Take sample store in FLASH memory output converted data measurements Output converted data from last sample then take new sample Data not stored in averaged data is SLT FLASH memory stored and or output Output raw data from last sample then take new sample Data not stored in SLTR FLASH memory ry SL Output data from last sample taken with either Polled or Logging Command x Y enable serial line sync mode When RS 232 RX line is high 3 10 VDC for 1 1000 milliseconds MicroCAT takes sample consisting of NAVG measurements SYNCMODE x stores averaged data in FLASH memory transmits real time averaged data Serial Line Sync and powers down x N disable serial line sync mode x time in seconds MicroCAT monitors RS 232 line for commands after taking a SYNCWAIT x sample serial p sync mode Range 0 120 seconds default 0 seconds 5 Data Upload DDb e Upload data from scan b to e Send STOP before sending this command Coefficients DC Display calibration coefficients Reference Sheet Version 006 11 17 03 Firmware Version 2 5 79
22. Test Locking sleeve Dummy plug Standard MicroCAT Ground Pin bump on connector The power and communications test will verify that the system works prior to deployment Test Setup Remove dummy plug if applicable A By hand unscrew the locking sleeve from the MicroCAT s bulkhead connector If you must use a wrench or pliers be careful not to loosen the bulkhead connector instead of the locking sleeve B Remove the dummy plug from the MicroCAT s I O bulkhead connector by pulling the plug firmly away from the connector 2 Standard Connector Install the I O cable connector aligning the raised bump on the side of the connector with the large pin pin 1 ground on the MicroCAT MCBH Connector Install the I O cable connector aligning the pins 3 Connect the I O cable to your computer s serial port 16 32 Section 3 Preparing MicroCAT for Deployment Test Note See SEATERM s help files for detailed information on the use of the program Note There is at least one way and as many as three ways to enter a command e Manually type a command in Command Data Echo Area e Use a menu to automatically generate a command e Use a Toolbar button to automatically generate a command Note Once the system is configured and connected Steps 3 through 5 below to update the Status bar e on the Toolbar click Status or e from the Utilities menu select Instrument
23. XP data processing software which calculates and plots temperature conductivity and optional pressure and derives variables such as salinity and sound velocity Scan One data sample consisting of NAVG averaged measurements containing temperature conductivity optional pressure and optional date and time SEASOFT DOS Sea Bird s complete DOS software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 Sea Bird s complete Win 95 98 NT 2000 XP software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 includes SEATERM SeatermAF SEASAVE SBE Data Processing and Plot39 SEATERM Sea Bird s WIN 95 98 NT 2000 XP software used to communicate with the MicroCAT TCXO Temperature Compensated Crystal Oscillator Triton X 100 Concentrated liquid non ionic detergent used for cleaning the conductivity cell 48 64 Appendix Functional Description Appendix 1 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
24. are entered in the con file and you select temperature variable type as T90 SEASOFT computes T68 directly and divides by 1 00024 to display T90 Note The CTD configuration con file is edited using the Configure menu in SEASAVE or SBE Data Processing in our SEASOFT Win32 suite of programs SEACON in SEASOFT DOS Also beginning January 1995 Sea Bird s own temperature metrology laboratory based upon water triple point and gallium melt cell SPRT and ASL F18 Temperature Bridge converted to T90 These T90 standards are now employed in calibrating all Sea Bird temperature sensors and as the reference temperature used in conductivity calibrations Accordingly all calibration certificates show T90 g h i j coefficients that result directly from T90 standards and T68 coefficients a b c d computed using the Saunders linear approximation 92 93 Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 Bellevue WA 98005 E mail seabird seabird com CEE USA Web www seabird com APPLICATION NOTE NO 57 Revised May 2003 Connector Care and Installation This Application Note describes the proper care and installation of standard I O connectors for Sea Bird CTD instruments Once properly installed the connections require minimal care Unless access to the bulkhead is required the connections can be left in place indefinitely The Application Note is divided into three sections e Connect
25. c VI OO CO CO CO OO OO CO CO CO 14 24 29 34 39 44 44 39 34 29 24 14 63 74 74 74 74 74 FS 0 01 0 0 O 0 0 0 0 3 C3 0 05 C3 02121 C3 x 0 THERMAL CORRECTION TEMP INST TEMP SPAN ITS90 OUTPUT ITS90 MV 32 50 7402 44 5 00 25 01 29 00 7409 52 35 00 24 96 24 00 7423 86 18 50 7434 93 15 00 7440 94 4 50 7460 35 1 00 7470 10 y thermistor output t 1 y PTEMPA2 y pressure output PTCAI t PTCA2 PTCBI t PTCB2 pressure psia n PA2 n Date Avg Delta P FS 10 15 20 25 30 Pressure PSIA 35 40 45 13 Nov 03 0 00 SBE 37 5 MicroCAT Conductivity and Temperature Recorder with RS 232 Interface Instrument Configuration Serial Number 37SM34829 3438 Firmware Version 2 5 Memory 2048K bytes Conductivity Range 0 7 5 Pressure Sensor 30 dBar s n 3944 Interface type RS 232 Baud Rate 9600 External Power Option not installed Maximum Depth 20 meters CAUTION The maximum deployment depth will be limited by the measurement range of the optional pressure sensor if installed 10 11 S Sea Bird Electronics Inc 1808 136th Place NE Belle
26. deployment pressure A field for the deployment pressure appears in the dialog box enter the pressure in decibars at which the MicroCAT was deployed Convert adds a pressure column to the data the entered deployment pressure is inserted in every row of the pressure column in the output cnv file B Use SBE Data Processing to process the cnv data See the software manual on CD ROM or Help files for details 40 56 Section 5 Routine Maintenance and Calibration Section 5 Routine Maintenance and Calibration This section reviews corrosion precautions connector mating and maintenance conductivity cell cleaning and storage pressure sensor maintenance replacement of batteries replacement of AF24173 Anti Foulant Devices and sensor calibration The accuracy of the MicroCAT is sustained by the care and calibration of the sensors and by establishing proper handling practices Corrosion Precautions Rinse the MicroCAT with fresh water after use and prior to storage All exposed metal is titanium other materials are plastic No corrosion precautions are required but direct electrical connection of the MicroCAT housing to mooring or other dissimilar metal hardware should be avoided Connector Mating and Maintenance 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 CAUTION 5 Do
27. entering STOP Must send STOP before uploading data 51 67 Appendix Command Summary CATEGORY COMMAND DESCRIPTION TS Take sample output converted data and leave power on Data not stored in FLASH memory TSR Take sample output raw data and leave power on Data not stored in FLASH memory Nim TSS Take sample store in FLASH memory output converted data and an powa off e sample store in memory output ISSON converted data and leave power on averaged data is Output converted data from last sample then take new stored and or SLT sample and leave power on Data not stored in output as FLASH memory applicable Output raw data from last sample then take new SLTR sample and leave power on Data not stored in FLASH memory SL Output converted data from last sample taken with either Polled Sampling or Logging Commands enable serial line sync mode When RS 232 RX line is high 3 10 VDC for 1 1000 milliseconds MicroCAT takes a sample consisting of NAVG Serial Line SYNCMODE x measurements stores averaged data in FLASH memory and transmits real time averaged data Sync x N disable serial line sync mode x time seconds MicroCAT monitors RS 232 line SYNCWAIT x for commands after executing take sample command Range 0 120 seconds default 0 seconds Upload data beginning with scan b ending with eee of the Data Uplo
28. equivalent Standard Connector shown in photos Install the dummy plug or cable connector aligning the raised bump on the side of the plug connector with the large pin 1 ground on the MicroCAT Remove any trapped air by burping or gently squeezing the plug connector near the top and moving your fingers toward the endcap OR MCBH Connector Install the plug cable connector aligning the pins Place the locking sleeve over the plug connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Attach the mounting clamp and guide to the mooring cable 4 Verify that the hardware and external fittings are secure Deploy the MicroCAT 35 51 Section 4 Deploying and Operating MicroCAT Recovery WARNING Pressure housings may flood under pressure due to dirty or damaged o rings or other failed seals causing highly compressed air to be trapped inside If this happens a potentially life threatening explosion can occur when the instrument is brought to the surface If the MicroCAT is unresponsive to commands or shows other signs of flooding or damage carefully secure the instrument in a location away from people until it has been determined that abnormal internal pressure does not exist Contact Sea Bird for assistance with procedures for safely relieving internal pressure Physical Handling 1 Rinse the conductivit
29. equivalent Either can be used to set the date e If the battery pack has been removed date and then time must be reset Always set both date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set for with MMDDYY or DDMMYY Notes The MicroCAT s baud rate set with BAUD must be the same as SEATERM s baud rate set in the Configure menu Notes e The MicroCAT does not store salinity and sound velocity in memory if OUTPUTSAL Y and OUTPUTSV Y It calculates and outputs the values real time or as data is uploaded therefore outputting these parameters has no effect on the number of samples that can be stored in memory e Salinity and sound velocity can also be calculated from data uploaded from the MicroCAT s memory in SBE Data Processing Notes e See Data Output Formats below e Date and time are included in autonomous sampling data only if STORETIME Y e Legend t temperature C ITS 90 c conductivity Siemens meter p pressure decibars sent only if optional pressure sensor installed S salinity psu sent only if OUTPUTSAL Y sound velocity m sec sent only if OUTPUTSV Y dd mmm yyyy day month year mm dd yyyy month day year hh mm ss hour minute second Setup Commands MMDD
30. following the instructions in Section 3 Preparing MicroCAT for Deployment IMPORTANT NOTE Depending on their classification the shipment of lithium batteries is subject to safety regulation concerning Dangerous Goods or Hazardous Material imposed by the U S Department of Transportation DOT and the International Air Transportation Association IATA Other countries may also have their own regulations The MicroCAT uses a lithium battery pack comprised of six parallel 9 volt batteries The total lithium contained in each 9 volt battery is less than 2 grams In this form the batteries are not considered Dangerous Hazardous Goods and may be shipped without restriction if they are NOT connected together and they are packaged to prevent accidental shorting of the battery contacts When two or more 9 volt battery sticks are assembled into the instrument s battery pack either inside or outside the instrument housing they are connected in parallel and ARE classified as Dangerous Hazardous Goods The assembled battery pack does not comply with DOT and IATA regulations requiring battery packaging test documentation and therefore MUST NOT BE SHIPPED VIA COMMERCIAL AIRCRAFT those governed by DOT or IATA INCLUDING PASSENGER AIRLINES OR CARGO CARRIERS SUCH AS FEDEX DHL UPS ETC If you will re ship the MicroCAT by commercial aircraft after you have finished testing 1 Remove the battery pack assembly from the MicroCAT 2 Remove the ba
31. from the O rings and mating surfaces in the housing with a lint free cloth or tissue Inspect the O rings and mating surfaces for dirt nicks and cuts Clean as necessary Apply a light coat of O ring lubricant Parker Super O Lube to the O rings and mating surfaces Plug the female end of the Molex connector onto the pins with the flat portion of the female end against the flat portion of the D cutout Verify the connector 16 properly aligned a backward connection will prevent communication with the computer Carefully fit the end cap into the housing until the O rings are fully seated Reinstall the flat Phillips head titanium screws to secure the end cap 15 31 Section 3 Preparing MicroCAT for Deployment Software Installation Note It is possible to use the MicroCAT without SEATERM by sending direct commands from a dumb terminal or terminal emulator such as Windows HyperTerminal Recommended minimum system requirements for software Pentium 90 CPU 64 Mbyte RAM Windows 98 or later If not already installed install SEATERM and other Sea Bird software programs on your computer using the supplied software CD 1 Insert the CD in your CD drive 2 Double click on Seasoft Win32 exe 3 Follow the dialog box directions to install the software The default location for the software is c Program Files Sea Bird Within that folder is a sub directory for each program Power and Communications
32. instrument from the EU or China in a crate containing coniferous solid wood we will return the instrument in a new crate made with mahogany and plywood We will charge for the replacement crates based on the dimensions of the crate we receive The charge will be determined as follows 1 Multiply the crate length x width x height in centimeters overall volume in cm3 not internal volume 2 Determine the price based on your calculated overall volume and the following chart Overall Volume cm3 Example Instrument Price USD less than 52 000 37 SM MicroCAT 45 52 000 to less than 65 000 SEACAT no cage 70 65 000 to 240 000 CTD in cage 125 more than 240 000 consult factory These prices are valid only for crate replacement required in conjunction with the return of a customer s instrument after servicing and only when the instrument was shipped to Sea Bird in a crate originally supplied by Sea Bird
33. nozzles if this is impossible withdraw from area and let fire burn Withdraw immediately in case of rising sound from venting safety device or any discoloration of the tank due to fire SECTION V HEALTH HAZARD DATA Health hazards may arise from inhalation ingestion and or contact with the skin and or eyes Ingestion may result in damage to throat and esophagus and or gastrointestinal disorders Inhalation may cause burning to the upper respiratory tract and or temporary or permanent lung damage Prolonged or repeated contact with the skin in absence of proper hygiene may cause dryness irritation and or dermatitis Contact with eye tissue may result in irritation burns or conjunctivitis First Aid Inhalation Remove to fresh air immediately If breathing has stopped give artificial respiration Keep affected person warm and at rest Get medical attention immediately First Aid Ingestion If large amounts have been ingested give emetics to cause vomiting Stomach siphon may be applied as well Milk and fatty acids should be avoided Get medical attention immediately First Aid Eyes Wash eyes immediately and carefully for 30 minutes with running water lifting upper and lower eyelids occasionally Get prompt medical attention First Aid Skin Wash with soap and water 102 Sud Chemie Performance ee Packaging SUD CHEMIE P 101 Christine Dr Creating Performance Technology Belen New Mexico 87002
34. of oceanographic electronic equipment SEA BIRD ELECTRONICS INC disclaims all product liability risks arising from the use or servicing of this system SEA BIRD ELECTRONICS INC has no way of controlling the use of this equipment or of choosing the personnel to operate it and therefore cannot take steps to comply with laws pertaining to product liability including laws which impose a duty to warn the user of any dangers involved in operating this equipment Therefore acceptance of this system by the customer shall be conclusively deemed to include a covenant by the customer to defend indemnify and hold SEA BIRD ELECTRONICS INC harmless from all product liability claims arising from the use of servicing of this system CALIBRATION SHEETS SBE 37SM Configuration S N 3341 1 SBE 37SM Pressure Test Certificate S N 3341 2 SBE 37SM Temperature Calibration S N 3341 3 SBE 37SM Conductivity Calibration S N 3341 4 SBE 37SM Real Time Clock Calibration S N 3341 5 SBE 37SM Pressure Calibration S N 3341 6 SBE 37SM Configuration S N 3438 7 SBE 37SM Pressure Test Certificate S N 3438 8 SBE 37SM Temperature Calibration S N 3438 9 SBE 37SM Conductivity Calibration S N 3438 10 SBE 37SM Real Time Clock Calibration S N 3438 11 SBE 37S
35. s response Additionally a command can be manually typed in this area from the available commands for the instrument Note that the instrument must be awake for it to respond to a command use Connect on the Toolbar to wake up the instrument e Status bar Provides status information To display or hide the Status bar select View Status bar in the View menu 7 sean range 17 33 Following are the Toolbar buttons applicable to the MicroCAT Section 3 Preparing MicroCAT for Deployment Toolbar Description Equivalent Buttons Command Re establish communications with MicroCAT Computer responds with S gt prompt MicroCAT press Enter Connect goes to sleep after 2 minutes without key communication from computer have elapsed Status Display instrument setup and status logging DS number of samples in memory etc Coefficients Display calibration coefficients DC Capture instrument responses on screen to file Capture may be useful for diagnostics File has cap 2 extension Press Capture again to turn off capture Capture status displays in Status bar Upload data stored in memory in format Convert DDb e utility can use to allow for post processing by use Upload SBE Data Processing Uploaded data has asc key if you will Upload extension Before using Upload be processing e Configure upload and header parameters data with SBE Configure menu Data e Send STOP to
36. sampling upload data and then power down click Connect on Toolbar to wake up S gt STOP Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it 5208 22 38 Section 4 Deploying and Operating Note If running SEATERM select Send 5 second break in the Communications menu to hold the RS 232 RX line in space state for 5 seconds This will always be more than 25 break characters and will cause the MicroCAT to exit serial line sync mode Serial Line Synchronization Serial Line Sync Serial Line Sync allows a simple pulse on the RS 232 line to initiate a sample This mode provides easy integration with ADCPs or current meters which can synchronize MicroCAT sampling with their own without drawing on their battery or memory resources If this mode is enabled SYNCMODE Y and the MicroCAT is powered down setting the RS 232 RX line high 3 10 VDC for 1 to 1000 milliseconds wakes up the MicroCAT and executes a Take Sample command e Take sample consisting of NAVG measurements e Store averaged data in FLASH memory Output real time converted averaged data After executing the Take Sample command the MicroCAT checks the RS 232 line and SYNCWAIT These determine whether to power down immediately or accept commands from the computer and whether to leave the serial line sync mode enabled or disable it e SYNCWAIT 0 and Mar
37. servicing of this system Table of Contents Table of Contents Section 1 Introduction eiie eee esee enses seen atenta seta seta setae 5 About this Man al erret eee tetigere 5 How to Contact Sea Bird eene 5 5 Unpacking 20 6 Shipping 22000 7 Section 2 Description of MicroCAT 8 System Descriptions es aententia dE CR E ei d 8 Speerfications aie ot dto sienten iie 10 DIMENSIONS ss oot ansa ione esL eh Ah ficte ons 11 11 Sample Timing 5 5 poe edi np ede as 12 Autonomous Sampling 12 Polled Sampling een t ostiis 12 Serial Line Sync Sampling sse 12 Battery Endurance ee eec d tape tie Soins 13 External Power optional esses enne 13 External Power and Cable Length sse 13 Section 3 Preparing MicroCAT for Deployment 14 Battery Installation ode rH teen NER 14 Description of Batteries and Battery
38. set up by the user to internally calculate depth and to output depth along with the measured parameters Sea Bird uses the following algorithms for calculating depth Fresh Water Applications Because most fresh water applications are shallow and high precision in depth not too critical Sea Bird software uses a very simple approximation to calculate depth depth meters pressure decibars 1 019716 Seawater Applications Sea Bird uses the formula in UNESCO Technical Papers in Marine Science No 44 This is an empirical formula that takes compressibility that is density into account An ocean water column at 0 t 0 and 35 PSU s 35 is assumed The gravity variation with latitude and pressure is computed as g m sec 9 780318 1 0 5 2788 107 2 36 107 x x 1 092x10 p where x sin latitude 57 29578 p pressure decibars Then depth is calculated from pressure depth meters 1 82x10 P p 2 279x10 1 p 2 2512 10 p 9 72659 p g where p pressure decibars g gravity m sec 98 Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 lt Bellevue WA 98005 E mail seabird seabird com USA Web www seabird com APPLICATION NOTE NO 71 September 2003 Desiccant Use and Regeneration drying This application note applies to all Sea Bird instruments intended for underwater use The application note cove
39. stop logging Processing Conven Convert uploaded data file to cnv data file which can be processed by SBE Data Processing Perform one or more diagnostic tests on MicroCAT Diagnostic test s accessed in this DS DC TS manner are non destructive they do not write and TSR over any existing instrument settings Interrupt and end current activity such as Stop flogging uploading or diagnostic test ogging uploading or diagnostic test Free computer COM port used to communicate Disconnect with MicroCAT COM port can then be used by another program See Command Descriptions in Section 4 Deploying and Operating MicroCAT 18 34 Section 3 Preparing MicroCAT for Deployment 3 Inthe Configure menu select SBE 37 The dialog box looks Computer COM port baud rate data bits and parity for communication between computer and MicroCAT Notes e SEATERM s baud rate must be the same as the MicroCAT baud rate set with BAUD Baud is factory set to 9600 but can be changed by the user see Command Descriptions in Section 4 Deploying and Operating MicroCAT When you click OK SEATERM saves the Configuration Options settings to the SeaTerm ini file in your Windows directory SeaTerm ini contains the last saved settings for each instrument SBE 37 39 etc When you open SEATERM and select the desired instrument in the Configure menu the Configuration Options dialog box shows the
40. the fouling of the cell by chemical or biological deposits Fouling changes the cell geometry resulting in a shift in cell constant Accordingly the most important determinant of long term sensor accuracy is the cleanliness of the cell We recommend that the conductivity sensor be calibrated before and after deployment but particularly when the cell has been exposed to contamination by oil slicks or biological material Temperature Sensor Calibration The primary source of temperature sensor calibration drift is the aging of the thermistor element Sensor drift will usually be a few thousandths of a degree during the first year and less in subsequent intervals Sensor drift is not substantially dependent upon the environmental conditions of use and unlike platinum or copper elements the thermistor is insensitive to shock 46 62 Section 5 Routine Maintenance and Calibration Pressure Sensor optional Calibration The optional strain gauge pressure sensor is a mechanical diaphragm type with an initial static error band of 0 05 Consequently the sensor is capable of meeting the MicroCAT s 0 10 error specification with some allowance for aging and ambient temperature induced drift Pressure sensors show most of their error as zero offset A technique is provided below for making small corrections to the pressure sensor calibration using the offset POFFSET calibration coefficient term by comparing MicroCAT pressure
41. tubing to the cell Removing the B Remove the four Phillips head screws attaching the guard to the guard without disconnecting the housing and sensor end cap cups from the guard will break C Gently lift the guard away the cell 2 Prepare for cleaning A Remove the small section of Tygon tubing and anti foulant device cup from one end of the cell Place a 0 6 m 2 ft length of 7 16 inch ID 9 16 inch OD Tygon tubing over the end of the cell C Clamp the MicroCAT so that the cell is vertical with the 0 6 m 2 ft Tygon tubing at the bottom end D Loop the Tygon tubing into a U shape and tape the open end of the tubing in place at the same height as the top of the glass cell 3 Clean the cell WARNING A Poura 1096 to 38 solution of HCL into the open end of the tubing Observe all precautions for until the cell is nearly filled Let it soak for 1 minute only working with strong acid B Drain the acid from the cell and flush for 5 minutes with warm not Avoid breathing the acid fumes hot clean de ionized water Work In a well ventilated area C Rinse the exterior of the instrument to remove any spilled acid from the surface D Fill the cell with a 1 solution of Triton X 100 included with shipment and let it stand for 5 minutes E Drain and flush with warm clean de ionized water for 1 minute F Carefully remove the 0 6 m 2 ft length of Tygon tubing 43 59 Section 5 Routine Maintenance a
42. used in the conductivity cell and all other homogeneous noncrystalline materials can be characterized by E Young s modulus and o Poisson s ratio For the Sea Bird conductivity cell E 9 1 x 10 psi o 0 2 and the ratio of indicated conductivity divided by true conductivity will be 1 8 The compressibility of the borosilicate glass used in the conductivity cell and all other homogeneous noncrystalline materials be characterized by E Young s modulus and Poisson s ratio For the Sea Bird conductivity cell 9 1 X 10 psi o 0 2 and the ratio of indicated conductivity divided by true conductivity will be 1 5 where 5 6 60 pressure psi 10 or 9 57 pressure 4 107 84 MATHEMATICAL DERIVATION The rigorous derivation of the pressure term s is as follows For a cube under hydrostatic load Al l s p 1 20 E where p is the hydrostatic pressure E is Young s modulus 6 is Poisson s ratio and A s are strain change in length per unit length Since this relationship is linear in the forces and displacements the relationship for strain also applies for the length radius and wall thickness of a cylinder To compute the effect on conductivity note that Ro pl where is resistance of the material at 0 pressure is volume resistivity 1 is length and A is the cross sectional area For the conductivity cell A r where is the radius of the cell Under pre
43. warranty 2 Because pH and other dissolved oxygen DO electrodes have a limited life caused by the depletion of their chemical constituents during normal storage and use our warranty applies differently to such electrodes Electrodes in SBE 13 and 23 DO sensors SBE 18 pH sensors and SBE 27 pH ORP sensors are covered under warranty for the first 90 days only Other components of the sensor are covered for 5 years 3 Equipment manufactured by other companies e g fluorometers transmissometers PAR optical backscatter sensors altimeters etc are warranted only to the limit of the warranties provided by their original manufacturers 4 Batteries zinc anodes or other consumable expendable items are not covered under this warranty 5 This warranty is void if in our opinion the instrument has been damaged by accident mishandled altered or repaired by the customer where such treatment has affected its performance or reliability In the event of such abuse by the customer costs for repairs plus two way freight costs will be borne by the customer Instruments found defective should be returned to the factory carefully packed as the customer will be responsible for freight damage 6 Incidental or consequential damages or costs incurred as a result of product malfunction are not the responsibility of SEA BIRD ELECTRONICS INC 106 107 Warranty Administration Policy Sea Bird Electronics Inc and its authorized representatives o
44. with clean de ionized water drain and gently blow through the cell to remove larger water droplets Do not use compressed air which typically contains oil vapor Re insert the protective plugs in the anti foulant device cups If the cell is not rinsed between uses salt crystals may form on the platinized electrode surfaces When the instrument is used next sensor accuracy may be temporarily affected until these crystals dissolve Cleaning Cell cleaning removes foreign material coating the inside of the cell partially restoring the cell to the original factory calibration Decide whether to clean the cell after a deployment based on the following Do not clean the cell if you will be sending the MicroCAT to Sea Bird for a post cruise calibration to establish the drift during the cruise e Clean the cell if you will not be performing a post cruise calibration to establish the drift Routine Cleaning inside of cell not visibly dirty 1 Heat a 1 2 solution of Triton X 100 included with shipment to less than 60 C 2 Agitate the warm solution through the cell many times in a washing action This can be accomplished with Tygon tubing and a syringe kit 3 Fillthe cell with the solution and let it soak for 1 hour 4 Drain and flush with warm clean de ionized water for 1 minute Then e Prepare for deployment or e If being stored drain and gently blow through the cell to remove larger water droplets Do not use com
45. you please complete the following or enclose a copy of your Purchase Order Purchase Order Number Billing Address if different than shipping address Instructions for Returning Goods to Sea Bird You can ship any of the following ways 1 Domestic Shipments USA Ship prepaid via UPS FedEx DHL etc directly to Sea Bird Electronics Inc 1808 136th Place NE Bellevue WA 98005 USA Telephone 425 643 9866 Fax 425 643 9954 2 Foreign Shipments Ship via prepaid airfreight to Sea Bird Electronics Inc 1808 136th Place NE Bellevue WA 98005 USA Telephone 425 643 9866 Fax 425 643 9954 Notify MTI Worldwide Logistics for Customs Clearance Seattle WA USA Telephone 206 431 4366 Fax 206 431 4374 Please note Airport of Destination SEA for Seattle WA 3 Ship via EXPRESS COURIER directly to Sea Bird Electronics UPS FedEx or DHL do not ship via TNT SKYPACK Courier services will clear Customs and deliver the package to Sea Bird It is not necessary to notify our customs broker Include a commercial invoice showing the description of the instruments and value for Customs purposes only On the invoice include the statement that Goods are of USA Origin Failure to include this statement in your invoice will result in US Customs assessing duties on the shipment which we will in turn pass on to the customer shipper Note Due to changes in EU and Chinese regulations if Sea Bird receives an
46. 0 00001 6759 67 5 68028 0 00005 6942 85 6 05185 0 00004 f INST FREQ sqrt 1 0 WBOTC t 1000 0 Conductivity g hf if jf 1 6t ep Siemens meter t temperature C p pressure decibars 6 CTcor e CPcor Residual instrument conductivity bath conductivity 0 002 Date Slope Correction 0 001 19 Mar 04 1 0000000 0 000 0 001 3 4 Conductivity Siemens m Residual PPM 14 SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SENSOR SERIAL NUMBER 3438 SBE 37 RTC CALIBRATION DATA CALIBRATION DATE 19 Mar 04 ITS 90 TEMPERATURE SCALE COEFFICIENTS rtca0 9 999785e 001 rtcal 1 763591 006 rtca2 3 197951 008 BATH TEMP RTC FREO COMPUTED FREO RESIDUAL ITS 90 Hz Hz PPM 1 0000 0 9999800 0 9999802 0 2 4 5000 0 9999860 0 9999858 0 2 15 0000 0 9999980 0 9999977 0 3 18 5000 1 0000000 1 0000002 0 2 24 0000 1 0000020 1 0000024 0 4 29 0000 1 0000030 1 0000027 0 3 32 5000 1 0000020 1 0000020 0 0 RTC frequency rtca0 rtcal t rtca2 Residual Computed RTC frequency Measured RTC frequency 166 Date Delta F ppm 19 Mar 04 0 00 5 0 5 10 15 20 25 30 35 Temperature Degrees C 15 Residual 96 FSR 0 50 0 25 0 00 0 25 0 50 SEA BIRD ELECTRO
47. 19 Mar 04 SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com ITS 90 COEFFICIENTS aQ al a2 a3 BATH TEMP 7 2 1 1 337932 005 635285 004 277333 006 300672 007 118 90 1 500 15 18 24 29 32 4 000 000 500 000 000 500 0 D Ov Ore 2 3 INSTRUMENT OUTPUT 576116 493664 316586 274670 221008 182456 160059 OOD INST TEMP ITS 90 1 0000 4 4999 15 0000 18 5001 24 0000 28 9998 32 5001 Temperature ITS 90 1 a0 al n n 20 n n 273 15 C Residual instrument temperature bath temperature 0 02 SBE 37 TEMPERATURE CALIBRATION DATA ITS 90 TEMPERATURE SCALE RESIDUAL ITS 90 0 0000 0001 0 0000 0001 0000 0002 0001 1 C Date Delta mdeg 0 01 19 Mar 04 0 00 0 00 0 01 0 02 1111 5 5 10 15 20 Temperature Degrees C 25 30 35 Residual S m SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SENSOR SERIAL NUMBER 3341 SBE 37 CONDUCTIVITY CALIBRATION DATA CALIBRATION DATE 19 Mar 04 PSS 1978 C 35 15 0 4 2914 Siemens meter COEFFICIENTS g
48. 4 20 0 86 18 64 seconds Sampling current consumption 0 025 amps 18 64 seconds 0 47 amp seconds sample In 1 hour sampling current consumption 6 0 47 amp seconds sample 2 82 amp seconds hour Quiescent current 10 microamps 0 01 mA In 1 hour quiescent current consumption 0 01 mA 3600 seconds hour 0 036 amp seconds hour Total current consumption hour 2 82 0 036 2 86 amp seconds hour Capacity 5 amp hours 3600 seconds hr 2 86 amp seconds hour 6294 hours 262 days 0 7 years External Power optional The MicroCAT can be ordered with an optional ability to be powered from an external source The internal lithium pack is diode OR d with the external source 80 power is drawn from whichever voltage source is higher The MicroCAT can also be operated from the external supply without having the lithium batteries installed Electrical isolation of conductivity is retained in units with the external power option preventing ground loop noise contamination in the conductivity measurement Common wire resistances Resistance ohms foot 0 0016 External Power and Cable Length 0 0025 PDC The limit to cable length is typically reached when the maximum current times 0 0081 the power common wire resistance is more than 1 volt 0 0107 V limit 1 volt IR 0 0162 Where 1 is the current required by the MicroCAT 25 milliamps BOIS see Specifications in Section 2 Description of Micr
49. 45 3 pin dummy plug For when I O cable not used 171500 3 pin dummy plug wet pluggable connector For when I O cable not used 17046 4 pin dummy plug for external power option For when I O cable not used 171398 4 pin dummy plug for external power option wet pluggable connector For when I O cable not used For standard XSG type connector 59 74 75 Index Index A About Sea Bird 5 Anti Foulant Device 54 removal before shipping to Sea Bird 46 replacing 45 B Batteries 10 34 description 14 endurance 13 installing 14 replacing 44 shipping precautions 7 Baud rate 24 27 C Cable length 13 24 Calibration 46 Cleaning 42 Clock 10 Command summary 51 Commands calibration coefficients 32 data upload 31 descriptions 25 logging 28 operating 30 output format 27 serial line sync 30 setup 27 status 26 testing 31 Communication defaults 19 Connector 11 41 Convert asc to cnv 40 Corrosion precautions 41 D Data output format 27 33 Data processing 9 40 installation 16 Deployment installation 35 preparing for 14 setup 34 Description 8 Dimensions 11 60 E Electronics disassembly reassembly 50 End 11 41 External power See Power external F Format data output 33 Functional description 49 G Glossary 48
50. 9890 0000010 0000030 0000050 0000060 0000050 RTC frequency rtca0 rtcal t rtca2 Residual Computed RTC frequency Measured RTC frequency 166 SBE 37 RTC CALIBRATION DATA ITS 90 TEMPERATURE SCALE COMPUTED FREO Hz 9999839 29999892 0000007 0000031 0000053 0000057 0000051 5 0 5 10 15 20 Temperature Degrees C 25 30 35 RESIDUAL PPM 0 1 0 2 0 3 0 1 0 3 0 3 0 1 Date Delta F ppm 19 04 0 00 Residual FSR 0 50 0 25 0 00 0 25 0 50 SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SENSOR SERIAL NUMBER 3341 CALIBRATION DATE 13 Nov 03 COEFFICIENTS PAL PA2 PRESSURE SPAN CALIBRATION 9 882643 002 2 068628 003 2 638595e 010 PRESSURE INST PSIA OUTPUT 14 63 7088 5 24 74 11981 4 29 74 14403 8 34 74 16828 5 39 74 19255 1 44 74 21682 7 44 74 21682 7 39 74 19257 7 34 75 16833 3 29 75 14412 9 24475 11990 0 14 63 7090 4 SBE 37 PRESSURE CALIBRATION DATA 44 psia S N 3308 PTCAO 1 859053e 001 1 1 765743e 000 PTCA2 1 005191 002 2 500288 001 1 1 225000 003 2 0 000000 000 TEMP COMPUTED ERROR ITS90 PRESSURE 23 Ww M
51. AL seconds e SYNCMODE f Y to place the MicroCAT in serial line sync mode so that a simple pulse on the RS 232 line will initiate a sample consisting of NAVG measurements 34 50 Section 4 Deploying and Operating MicroCAT Deployment The MicroCAT comes standard with a pre installed Sea Bird wire mounting clamp and guide 1 New MicroCATs are shipped with AF24173 Anti Foulant Devices and Remove protective plugs pre installed plugs 2 Anti Remove the protective plugs if installed from the anti foulant device foulant cups The protective plugs must be removed prior to deployment device or pressurization If the plugs are left in place during deployment cups 2 the sensor will not register conductivity If left in place during CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors Dummy plug or cable connector as applicable Locking sleeve 3 Standard mounting clamp and guide loosen hardware to separate clamp guide halves and mount on mooring cable 5 pressurization the cell may be destroyed Verify that the anti foulant device cups contain AF24173 Anti Foulant Devices see Section 5 Routine Maintenance and Calibration Install the dummy plug or I O cable for optional external power and or serial communication during deployment A B Lightly lubricate the inside of the dummy plug or cable connector with silicone grease DC 4 or
52. Capture on the Toolbar before entering DDb e e See Data Output Formats after these Command Descriptions e Use Upload on the Toolbar or Upload Data in the Data menu to upload data that will be processed by SBE Data Processing Manually entering DDb e does not produce data with the required header information and required format for processing by our software This command is included here for reference for users who are writing their own software Send STOP before uploading data DDb e Upload data from scan b to scan e First sample is number 1 As data 18 uploaded screen first displays start time sample interval and start sample number These are start time sample interval and starting sample number for last set of logged data This information can be useful in determining what data to review input in bold S DD1 200 Example Upload samples 1 through 200 for MicroCAT to a file user Click Capture on Toolbar and enter desired filename in dialog box Testing Commands Data obtained with these commands is not stored in FLASH memory TT TC TP TTR TCR TPR TR 31 Measure temperature 100 times or until Esc key 18 pressed output converted data Measure conductivity 100 times or until Esc key 18 pressed output converted data Measure pressure 100 times or until Esc key is pressed output converted data Measure temperature 100 times or until E
53. Dispose of in a sanitary landfill or by other approved State and Local procedures Sea Bird Electronics label revised 10 5 02 57 Appendix V Replacement Parts Appendix V Replacement Parts Part er Quantity in Number Part Application Description MicroCAT Bis tributyltin oxide device 801347 es inserted into anti foulant 2 Device device cup 231459 Anti foulant device cup Holds 2 Device 231505 Anti foulant device cap 2 Device in cup Seals end of anti foulant cap 30984 Plug when not deployed keeping 2 dust and aerosols out of conductivity cell during storage O ring between end of 30507 RIO conductivity cell and 2 e anti foulant device cup Assorted hardware and O rings including e 30900 Machine screw 1 4 20 x 2 hex head titanium secures mounting clamp 30633 Washer 1 4 split ring lock titanium for screw 30900 30634 Washer 1 4 flat titanium for screw 30900 31019 O ring 2 008 N674 70 for screw 30900 retains mounting clamp hardware 31040 Screw 8 32 x 2 FH TI secures cable guide base to I O connector end cap 30860 Machine screw 6 32 x FH TI secures cable clamp half to flat area of sensor end 37 5 SMP cap 60035 spare hardware 30859 Machine screw 8 32 x O ring kit 3 8 FH PH titanium secures housing to I O connector end cap 30857 Parker 2 033E515 80 O ring I O connector end cap and sensor end c
54. Druck Inc has a superior new design that is entirely different from conventional silicon types in which the deflection of a metallic diaphragm is detected by epoxy bonded silicon strain gauges The Druck sensor employs a micro machined silicon diaphragm into which the strain elements are implanted using semiconductor fabrication techniques Unlike metal diaphragms silicon s crystal structure is perfectly elastic so the sensor is essentially free of pressure hysteresis Compensation of the temperature influence on pressure offset and scale is performed by the MicroCAT s CPU The pressure sensor is available in the following pressure ranges 20 100 350 1000 2000 3500 and 7000 meters Sensor Interface Temperature is acquired by applying an AC excitation to a hermetically sealed VISHAY reference resistor and an ultra stable aged thermistor with a drift rate of less than 0 002 C per year A 24 bit A D converter digitizes the outputs of the reference resistor and thermistor and optional pressure sensor AC excitation and ratiometric comparison using a common processing channel avoids errors caused by parasitic thermocouples offset voltages leakage currents and reference errors Conductivity is acquired using an ultra precision Wien Bridge oscillator to generate a frequency output in response to changes in conductivity A high stability TCXO reference crystal with a drift rate of less than 2 ppm year is used to count the fr
55. EM Phone 505 864 6691 ISO 9002 CERTIFIED Fax 505 864 9296 MATERIAL SAFETY DATA SHEET August 13 2002 SORB IT Packaged Desiccant NOTE TO PHYSICIAN This product is a desiccant and generates heat as it adsorbs water The used product can contain material of hazardous nature Identify that material and treat accordingly SECTION VI REACTIVITY DATA Reactivity Silica gel is stable under normal temperatures and pressures in sealed containers Moisture can cause a rise in temperature which may result in a burn SECTION VII SPILL OR LEAK PROCEDURES Notify safety personnel of spills or leaks Clean up personnel need protection against inhalation of dusts or fumes Eye protection is required Vacuuming and or wet methods of cleanup are preferred Place in appropriate containers for disposal keeping airborne particulates at a minimum SECTION VIII SPECIAL PROTECTION INFORMATION Respiratory Protection Provide a NIOSH MSHA jointly approved respirator in the absence of proper environmental control Contact your safety equipment supplier for proper mask type Ventilation Provide general and or local exhaust ventilation to keep exposures below the TLV Ventilation used must be designed to prevent spots of dust accumulation or recycling of dusts Protective Clothing Wear protective clothing including long sleeves and gloves to prevent repeated or prolonged skin contact Eye Protection Chemical splash goggles designed i
56. G CH F F Conductivity H CI F F Conductivity I Dates shown CJ F F Conductivity J are when WBOTC F F Conductivity wbotc calibrations CTCOR F F Conductivity ctcor were CPCOR F F Conductivity cpcor performed PCALDATE S S Pressure calibration date Calibration 0 F Pressure 0 coefficients 1 F Pressure Al are initially PA2 F F Pressure A2 factory set 0 F Pressure 0 and should PTCA1 F F Pressure 1 agree with PTCA2 F F Pressure ptca2 Calibration F Pressure ptcb0 Certificates F Pressure ptcbl shipped with PTCB2 F F Pressure ptcb2 MicroCAT POFFSET F F Pressur offset RCALDATE S S Real time clock calibration date 0 F Real time clock AO 1 F Real time clock 1 RTCA2 F F Real time clock A2 53 69 Appendix IV AF24173 Anti Foulant Device Appendix IV AF24173 Anti Foulant Device AF 24173 Anti Foulant Devices supplied for user replacement are supplied in polyethylene bags displaying the following label AF24173 ANTIFOULANT DEVICE FOR USE ONLY IN SEA BIRD ELECTRONICS CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS ACTIVE INGREDIENT Bis tributyltin oxide OTHER INGREDIENTS 2 25 DANGER See the complete label within the Conductivity Instrument Manual for Additional Precautionary Statements and Information on the Handling Storage and Disposal of th
57. H memory sends data to computer and powers off in response to a pulse on serial line This provides an easy method for synchronizing MicroCAT sampling with other instruments such as Acoustic Doppler Current Profilers ADCPs or current meters without drawing on their battery or memory resources Communication Setup Parameters 1 Double click on SeaTerm exe 2 Oncemain screen appears in Configure menu select SBE 37 Click on COM Settings tab in dialog box Input e Serial Port COMI through COM10 are available e Baud Rate 9600 or other if applicable e Data Bits 8 e Parity No Parity e Mode RS 232 Full Duplex Deployment 1 Batteries A Remove I O connector end cap Wipe dry housing end cap seam Remove 2 flat Phillips head screws from end cap Pull end cap out Disconnect Molex connector connecting end cap to battery pack Wipe dry O ring mating surfaces in housing with lint free cloth B Remove battery pack and install batteries Remove large screw washer from upper PCB Lift battery pack out of housing using handle Remove 2 small screws washers from upper PCB Lift upper PCB off brass sleeve Insert batteries onto lower PCB Press upper PCB onto batteries mating plugs and aligning screw holes Refasten with two small screws washers C Reinstall battery pack and I O connector end cap Align D shaped opening and notch Lower battery pack into housing push gently to mate Reinstall large screw washer in upper PCB Remove water
58. Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 Bellevue WA 98005 E mail seabird seabird com USA Web www seabird com APPLICATION NOTE NO 2D Revised December 2002 INSTRUCTIONS FOR CARE AND CLEANING OF CONDUCTIVITY CELLS Since any conductivity sensor s output reading is proportional to its dimensions it is important to keep the cell clean of internal coatings Also cell electrodes contaminated with oil biological growths or other foreign material will cause low conductivity readings If the cell is allowed to dry out between usage salt crystals may form on and in the platinized electrode surfaces When the instrument is next used there will be a delay before these crystals are dissolved in the meantime sensor accuracy may be affected Therefore we recommend that the cell be kept filled with distilled or de ionized water between uses A length of 7 16 ID Tygon tubing is provided for this purpose to be connected in such a way that any air entrapped will be in the Tygon tube rather than in the cell An additional important benefit of keeping the cell ends closed with Tygon is to keep air borne contaminants which are abundant on most research vessels from entering the cell If it is not practical to keep the cell filled with distilled or de ionized water between use for example in Arctic environments where freezing is a hazard flush the cell with clean fresh water preferably distilled or de ionized
59. M Pressure Calibration S N 3438 12 Calibration Manual Generation Date 21 March 2004 SBE 37 5 MicroCAT Conductivity and Temperature Recorder with RS 232 Interface Instrument Configuration Serial Number 37SM34829 3341 Firmware Version 2 5 Memory 2048K bytes Conductivity Range 0 7 5 Pressure Sensor 30 dBar s n 3308 Interface type RS 232 Baud Rate 9600 External Power Option not installed Maximum Depth 20 meters CAUTION The maximum deployment depth will be limited by the measurement range of the optional pressure sensor if installed S Sea Bird Electronics Inc 1808 136th Place NE Bellevue Washington 98005 USA Phone 425 643 9866 FAX 425 643 9954 Website http www seabird com Email seabird seabird com SBE Pressure Test Certificate Test Date 11 12 2003 Description SBE 37 Microcat Job Number 34829 Customer Name UCLA SBE Sensor Information Pressure Sensor Information Model Number 37 Sensor Type Druck Serial Number 3341 Sensor Serial Number 3308 Sensor Rating 45 Pressure Test Protocol Low Pressure Test 45 PSI Held For 15 Minutes High Pressure Test 45 PSI Held For 15 Minutes Passed Test v Tested By PCC High pressure is generally equal to the maximum depth rating of the instrument Pressure Time typical Test Profile Residual Degrees SENSOR SERIAL NUMBER 3341 CALIBRATION DATE
60. NICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SENSOR SERIAL NUMBER 3438 CALIBRATION DATE 02 Feb 04 COEFFICIENTS 5 628372 002 PAl 2 069865 003 2 2 186108 010 PRESSURE SPAN CALIBRATION PRESSURE INST PSIA OUTPUT 14 47 7029 3 24 61 11948 4 29 61 14371 9 34 61 16795 3 39 61 19221 5 44 61 21650 8 39 61 19225 0 34 62 16801 5 29 62 14378 9 24 63 11957 7 14 49 7049 5 TEMP COMPUTED ITS90 PRESSURE 23 c VI OO CO CO CO CO CO 14 46 24 61 29 61 34 61 39 61 44 61 39 61 34 62 29 263 24 63 14 50 SBE 37 PRESSURE CALIBRATION DATA 44 psia S N 3944 3 391601 001 2 380062e 001 2 3 803916 002 2 501375 001 1 7 500000 004 PTCB2 0 000000 000 THERMAL CORRECTION ERROR TEMP INST TEMP SPAN ITS90 OUTPUT 11590 MV 0 02 32 50 7442 94 5 00 25 01 0 01 29 00 7450 75 35 00 25 04 01 24 00 7464 45 0 01 18 50 7474 14 0 00 15 00 7478 12 0 00 4 50 7486 79 0 00 1 00 7492 11 0 01 0 01 0 00 0 02 y thermistor output t PTEMPAI y PTEMPA2 y x pressure output 1 t PTCA2 PTCBO PTCBI t PTCB2 pressure PAO n PA2 n Date Avg Delta P FS 02 Feb 04 0 00
61. SBE 37 5 MicroCAT Conductivity and Temperature Recorder with RS 232 Interface Configuration and Calibration Manual Sea Bird Electronics Inc 1808 136 Place NE Bellevue Washington 98005 USA Tel 425 643 9866 Fax 425 643 9954 This page Intentionally Left Blank SBE 37 SM MICROCAT OPERATING AND REPAIR MANUAL TABLE OF CONTENTS G n ration e 1 Limited Liability 5 Rasse dnb rd 2 Calibration Certificates ERU OR ROS NU IR NIA 3 SBE 37SM RS 232 Manual 37sm rs232 eee 16 SBE 37SM RS 232 Reference Sheet 375 77 SBE 375M Specification 79 PRION T T E 81 Dwg 50147AExt I O Wiring No External Power RS 232 Impulse SU 104 Dwg 40889ASBE 37SM 3 Pin Data I O Molex Wiring Impulse 105 brace 106 Service Request sos qtd bee apt Rue 108 SEA BIRD ELECTRONICS INC 1808 136 Place NE Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com Manual Generation Date 21 March 2004 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
62. Status SEATERM sends the status command which displays in the Command Data Echo Area and updates the Status bar Double click on SeaTerm exe If this is the first time the program is used the setup dialog box may appear SeaTerm Setup The initialization file was not found in the Windows directory Please enter the following setup information IMPORTANT To complete setup review the configuration setting for your instrument by selecting your instrument type from the Configure menu list Instrument Type COM Port fi x Select the instrument type SBE 37 and the computer COM port for communication with the MicroCAT Click OK The main screen looks like this Toolbar Command Data Echo Area Capture Status bar to file status grayed out if not capturing Upload parameter jp comi Instrument Baud rate data bits EPROM version stop bits and parity Menus Contains tasks and frequently executed instrument commands e Toolbar Contains buttons for frequently executed tasks and instrument commands All tasks and commands accessed through the Toolbar are also available in the Menus To display or hide the Toolbar select View Toolbar in the View menu Grayed out Toolbar buttons are not applicable Command Data Echo Area Echoes a command executed using a Menu or Toolbar button as well as the instrument
63. YY mmddyy DDMMYY ddmmyy HHMMSS hhmmss Set real time clock month day and year Must be followed by HHMMSS to set time Set real time clock day month and year Must be followed by HHMMSS to set time Set real time clock hour minute second Example Set current date and time to 10 January 2004 12 00 00 user input in bold S gt MMDDYY 011004 S gt HHMMSS 120000 S gt DDMMYY 100104 S gt HHMMSS 120000 or BAUD x x baud rate 600 1200 2400 4800 9600 19200 or 38400 Default 9600 Length of cable that MicroCAT can drive when transmitting real time data is dependent on baud Allowable combinations Maximum Cable Length meters Maximum Baud Rate 1600 600 800 1200 400 2400 200 4800 100 9600 50 19200 25 38400 OUTPUTSAL x OUTPUTSV x FORMAT x 27 x Y Calculate and output salinity psu with each sample x N Do not x Y Calculate and output sound velocity m sec with each sample using Chen and Millero formula UNESCO Technical Papers in Marine Science 44 x N Do not x 0 output raw hex data for diagnostic use at Sea Bird x 1 default output converted data ttt tttt cc ccccc Sss ssss vvvv vvv dd mmm yyyy hh mm ss x 2 output converted data ttt tttt cc ccccc Sss ssss vvvv vvv mm dd yyyy hh mm ss 43 Section 4 Deploying and Operating MicroCAT Setup Commands continued
64. ad DDb e scan e Send STOP before sending DDb e Toolbar Upload Data TT Measure temperature 100 times or until Esc key is in the Data menu to pressed output converted data upload data that will be TC Measure conductivity 100 times or until Esc key is processed by SBE Data pressed output converted data Processing Manually TP Measure pressure 100 times or until Esc key is entering DDb e does not pressed output converted data T ata with the Measure temperature times or until Esc key 18 iiu Testing THE pressed output raw data information for processing TCR Measure conductivity 100 times or until Esc key is by SBE Data Processing pressed output raw data TPR Measure pressure 100 times or until Esc key is pressed output raw data TR Measure real time clock frequency 30 times or until Esc key is pressed output data 52 68 Appendix Command Summary CATEGORY COMMAND DESCRIPTION Display calibration coefficients all coefficients and DC dates listed below are included in display Use individual commands below to modify a particular coefficient or date TCALDATE S S Temperature calibration date Coefficients 0 F Temperature AO F floating TA1 F F Temperature Al point number TA2 F F Temperature A2 S string with TA3 F F Temperature A3 CCALDATE S S Conductivity calibration date CG F F Conductivity
65. an 10 microamps 0 09 AH per year displays a low battery indication in the data See Specifications above The time required for each sample is dependent on the user programmed for data storage limitations sampling mode number of measurements per sample and inclusion of a pressure sensor in the MicroCAT see Sample Timing above So battery endurance is highly dependent on the application Two examples follow Example 1 A MicroCAT with no pressure sensor is set up to sample autonomously every 10 minutes 6 samples hour taking 1 measurement per sample NAVG 1 How long can it be deployed Sampling time 1 44 seconds NAVG 0 86 seconds 1 44 1 0 86 2 3 seconds Sampling current consumption 0 025 amps 2 3 seconds 0 06 amp seconds sample In 1 hour sampling current consumption 6 0 06 amp seconds sample 0 36 amp seconds hour Quiescent current 10 microamps 0 01 mA In 1 hour quiescent current consumption 0 01 mA 3600 seconds hour 0 036 amp seconds hour Total current consumption hour 0 36 0 036 0 4 amp seconds hour Capacity 5 amp hours 3600 seconds hr 0 4 amp seconds hour 45000 hours 1875 days 5 1 years However Sea Bird recommends that batteries should not be expected to last longer than 2 years in the field Example 2 Same as above but taking 20 measurements per sample NAVG 20 How long can it be deployed Sampling time 1 44 seconds NAVG 0 86 seconds 1 4
66. ap O ring 30149 Machine screw 6 32 x 5 8 PH stainless steel secures battery pack assembly to battery pylon 30243 Washer 6 split ring lock stainless steel for screw 30149 30357 Machine screw 2 56 x 1 4 PH stainless steel secures battery pack s upper PCB to brass sleeve e 30986 Washer 2 split ring lock stainless steel for screw 30357 Continued on next page 58 Appendix V Replacement Parts Continued from previous page Part Number Part Application Description Quantity in MicroCAT 50243 Lithium battery set 6 sticks Power MicroCAT 1 30411 Triton X 100 Conductivity cell cleaning solution 801412 3 pin RMG 3FS to 9 pin DB 9S I O cable 2 4 m 8 ft long From MicroCAT to computer 801366 3 pin MCIL 3FS wet pluggable connector to 9 pin DB 9S I O cable 2 4 m 8 ft long From MicroCAT to computer 801385 4 pin RMG 4FS to 9 DB 9S I O cable with power leads 2 4 m 8 ft long From MicroCAT to computer for MicroCAT with optional external power 801206 4 pin MCIL 4FS wet pluggable connector to 9 pin DB 9S I O cable with power leads 2 4 m 8 ft long From MicroCAT to computer for MicroCAT with optional external power 17043 Locking sleeve Locks I O cable or dummy plug in place 171192 Locking sleeve wet pluggable connector Locks I O cable or dummy plug in place 170
67. ata date dd mmm x 2 output converted data date mm dd yyyy REFPRESS x x reference pressure decibars used when MicroCAT has no pressure sensor NAVG x x number of measurements 1 1000 to take and average per sample Default 1 x sample number for first sample when sampling begins After uploading data set to 0 SAMPLENUM x before starting to sample again to make entire memory available for recording If not reset to 0 data stored after last sample Qs Quit session and place MicroCAT in quiescent sleep state Data logging and memory retention are not affected x interval between samples 5 32767 seconds When commanded to start sampling INTERVAL x with STARTNOW or STARTLATER at x second intervals MicroCAT takes sample consisting of NAVG measurements stores averaged data in FLASH memory transmits real time averaged data if TXREALTIME Y and powers down STORETIME x x Y store date and time with each sample x N do not x Y output real time data as it is sampled Does not affect storing data to memory TXREALTIME x Do not set INTERVAL to less than 10 seconds if transmitting real time data x N do not Logging STARTNOW Start logging now Delayed logging start month day year Must follow with STARTHHMMSS mmddyy DEMO DI Delayed logging start day month year Must follow with STARTHHMMSS ddmmyy STARTHHMMSS hhmmss Delayed logging start hour minute second STARTLATER Start logging at delayed start time STOP
68. ata only if STORETIME Y e When TXREALTIME Y real time autonomous data transmitted to the computer is preceded by sign and a space e The MicroCAT s pressure sensor is an absolute sensor so its raw output includes the effect of atmospheric pressure 14 7 psi As shown on the Calibration Sheet Sea Bird s calibration and resulting calibration coefficients is in terms of psia However when outputting pressure in decibars the MicroCAT outputs pressure relative to the ocean surface i e at the surface the output pressure is 0 decibars The MicroCAT uses the following equation to convert psia to decibars pressure db pressure psia 14 7 0 689476 Each scan ends with a carriage return lt CR gt and line feed lt LF gt e FORMAT 0 Raw hex data intended only for diagnostic use at Sea Bird FORMAT default ttt tttt cc ccccc pppp ppp sss ssss vvvv vvv dd mmm hh mm ss Leading zeros are suppressed except for one zero to the left of the decimal point FORMAT 2 ttt tttt cc ccccc sss ssss mm dd yyyy hh mm ss Leading zeros are suppressed except for one zero to the left of the decimal point Example Sample data output when pressure sensor is installed STORETIME Y OUTPUTSAL Y OUTPUTSV Y and FORMAT 1 4 1960 3 53255 2184 494 36 9305 1506 185 07 Nov 2003 14 28 00 temperature conductivity pressure salinity sound velocity da
69. c 1 Unscrew the pressure port plug from the pressure port The fitting may contain silicon oil from the factory so there may be some spillage 2 Rinse the pressure port with warm de ionized water to remove any particles debris etc 3 Replace the pressure port plug Replacing Batteries See Installing Batteries in Section 3 Preparing MicroCAT for Deployment 1 Remove the I O connector end cap and battery pack assembly 2 Remove the upper PCB from the assembly as follows A Remove the two small Phillips head screws and lock washers from the upper PCB B Carefully pry the upper PCB away from the batteries gently going around the circle of batteries to avoid bending the banana plugs 3 Remove the existing batteries and replace with new batteries banana plug end first Ensure each battery is fully inserted 4 Reinstall the upper PCB replace the battery pack assembly and reinstall the end cap 44 60 Section 5 Routine Maintenance and Calibration Replacing Anti Foulant Devices SBE 37 SI SM The MicroCAT has an anti foulant device cup and cap on each end of the cell New 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 prote
70. ced air circulating air or convection oven allow a minimum of 3 8 to 5 1 cm 1 5 to 2 0 inches of air space between the top of the bags and the next metal tray above the bags If placed in a radiating exposed infrared element type oven shield the bags from direct exposure to the heating element giving the closest bags a minimum of 40 6 cm 16 inches clearance from the heat shield Excessive surface film temperature due to infrared radiation will cause the Tyvek material to melt and or the seals to fail Seal failure may also occur if the temperature is allowed to increase rapidly This is due to the fact that the water vapor is not given sufficient time to diffuse through the Tyvek material thus creating internal pressure within the bag resulting in a seal rupture Temperature should not increase faster than 0 14 to 0 28 C 0 25 to 0 50 F per minute 3 Set the temperature of the oven to 118 3 C 245 F and allow the bags of desiccant to reach equilibrium temperature WARNING Tyvek has a melt temperature of 121 1 126 7 C 250 260 F Non MIL D 3464E activation or reactivation of both silica gel and Bentonite clay can be achieved at temperatures of 104 4 C 220 F 4 Desiccant bags should be allowed to remain in the oven at the assigned temperature for 24 hours At the end of the time period the bags should be immediately removed and placed in a desiccator jar or dry 096 relative humidity airtight container for cooling
71. ctive 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 If necessary remove the guard to provide easier access to use this product in a manner inconsistent with its labeling Place the new Anti Foulant Device in the cup 4 Rethread the cap onto the cup Do not over tighten 5 Ifthe MicroCAT is to be stored reinstall the protective plug Note that the plugs must be removed prior to deployment or pressurization If the plugs are left in place during deployment the cell will not register conductivity If left in place during pressurization the cell may be destroyed Cup 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 guar
72. d away 45 Sensor Calibration Notes e Batteries must be removed before returning the MicroCAT to Sea Bird Do not return used batteries to Sea Bird when shipping the MicroCAT for recalibration or repair e Please remove AF24173 Anti Foulant Devices from the anti foulant device cups before returning the MicroCAT to Sea Bird Store them for future use See Replacing Anti Foulant Devices for removal procedure Section 5 Routine Maintenance and Calibration Sea Bird sensors are calibrated by subjecting them to known physical conditions and measuring the sensor responses Coefficients are then computed which may be used with appropriate algorithms to obtain engineering units The conductivity and temperature sensors on the MicroCAT are supplied fully calibrated with coefficients printed on their respective Calibration Certificates see back of manual These coefficients have been stored in the MicroCAT s EEPROM We recommend that MicroCATs be returned to Sea Bird for calibration Conductivity Sensor Calibration The conductivity sensor incorporates a fixed precision resistor in parallel with the cell When the cell is dry and in air the sensor s electrical circuitry outputs a frequency representative of the fixed resistor This frequency is recorded on the Calibration Certificate and should remain stable within 1 Hz over time The primary mechanism for calibration drift in conductivity sensors is
73. d data collection We ve included detailed specifications command descriptions maintenance and calibration information and helpful notes throughout the manual Sea Bird welcomes suggestions for new features and enhancements of our products and or documentation Please e mail any comments or suggestions to seabird seabird com How to Contact Sea Bird Sea Bird Electronics Inc 1808 136 Place Northeast Bellevue Washington 98005 USA Telephone 425 643 9866 Fax 425 643 9954 E mail seabird seabird com Website http www seabird com Business hours Monday Friday 0800 to 1700 Pacific Standard Time 1600 to 0100 Universal Time Except from April to October when we are on summer time 1500 to 0000 Universal Time Quick Start Follow these steps to get a Quick Start using the MicroCAT The manual provides step by step details for performing each task 1 Install batteries and test power and communications Section 3 Preparing MicroCAT for Deployment 2 Deploy the MicroCAT Section 4 Deploying and Operating MicroCAT A Install new batteries if necessary B Ensure all data has been uploaded and then set SAMPLENUM O to make entire memory available for recording if desired Set date and then time Establish setup and logging parameters Set to start logging now or in the future Remove protective plugs from anti foulant device cups and verify AF24173 Anti Foulant Devices are installed Leav
74. dard The value for conductivity at 35 ppt 15 degrees C and 0 pressure C 35 15 0 was not agreed upon in the IEEE reports Culkin amp Smith used 42 914 mmho cm p 23 while Poisson used 42 933 mmho cm p 47 It really does not matter which value is used provided that the same value is used during data reduction that was used to compute instrument calibration coefficients Our instrument coefficients are computed using C 35 15 0 42 914 mmho cm The PSS 1978 equations and constants for computing salinity from in situ measurements of conductivity temperature and pressure are given in the Conclusions section of the IEEE journal p 14 and are reproduced back of this note In the first equation R is obtained by dividing the conductivity value measured by your instrument by C 35 15 0 or 42 914 mmho cm Note that the PSS equations are based upon conductivity in units of mmho cm which are equal in magnitude to units of mS cm If you are working in conductivity units of Siemens meter S m multiply your conductivity values by 10 before using the PSS 1978 equations Also note that the equations assume pressure relative to the sea surface Absolute pressure gauges as used in all Sea Bird CTD instruments have a vacuum on the reference side of their sensing diaphragms and indicate atmospheric pressure nominally 10 1325 dBar at the sea surface This reading must be subtracted to obtain pressure as required by the PSS equations The pressure
75. ded cover at each end of the cell retains the expendable AF24173 Anti Foulant Device 24 Section 2 Description of MicroCAT The MicroCAT s optional pressure sensor developed by Druck Inc has a superior new design that is entirely different from conventional silicon types in which the deflection of a metallic diaphragm is detected by epoxy bonded silicon strain gauges The Druck sensor employs a micro machined silicon diaphragm into which the strain elements are implanted using semiconductor fabrication techniques Unlike metal diaphragms silicon s crystal structure is perfectly elastic so the sensor is essentially free of pressure hysteresis Compensation of the temperature influence on pressure offset and scale is performed by the SBE MicroCAT s CPU The MicroCAT is supplied with a powerful Win 95 98 NT 2000 XP software Notes package SEASOFT Win32 which includes e Sea Bird also supplies a DOS software package SEASOFT DOS which can be used with the MicroCAT data retrieval However this manual details only the use of the Windows e SBE Data Processing program for calculation and plotting of software with the MicroCAT conductivity temperature pressure optional and derived variables such Help files provide detailed as salinity and sound velocity SEATERM terminal program for easy communication and information on the use of SEATERM and SBE Data Processing Separate software manuals on CD ROM co
76. down the rod The rod will help guide the assembly into the proper position C Push the assembly until the edge connector is fully inserted After the PCB assembly has been fully inserted remove the rod D Drop the Phillips head screw into the hole and tighten gently Reinstall the battery pack and end cap following instructions in Section 3 Preparing MicroCAT for Deployment 50 66 endix Ill Command Summa Appendix Command Summary Note See Command Descriptions in Section 4 Deploying and Operating MicroCAT for detailed information and examples Note Do not set INTERVAL to less than 10 seconds if transmitting real time data TXREALTIME Y CATEGORY COMMAND DESCRIPTION Status DS Display status Set real time clock month day year MMDDYY mmddyy Follow with HHMMSS or i will not set date Set real time clock day month year DDMMYY ddmmyy Follow with HHMMSS or it il not set date HHMMSS hhmmss Set real time clock hour minute second baud rate 600 1200 2400 4800 9600 19200 38400 Default 9600 x Y calculate and output salinity psu with each OUTPUTSAL x sample x N do not x Y calculate and output sound velocity m sec with OUTPUTSV x each sample x N do not Setup x 0 output raw hex data for diagnostic use FORMAT x x 1 output converted data date dd mmm yyyy x 2 output co
77. e zero conductivity barometric pressure gauge pressure current date and time shipped from the factory set to Pacific Daylight or Standard Time 8 Command the MicroCAT to go to sleep quiescent state by typing QS and pressing the Enter key The MicroCAT 18 ready for programming and deployment 20 36 Section 4 Deploying and Operating MicroCAT Section 4 Deploying and Operating MicroCAT This section includes a discussion of system operation example sets of operation commands and detailed command descriptions It also provides instructions for deploying and recovering the MicroCAT and uploading and processing data from the MicroCAT s memory Sampling Modes The MicroCAT has three basic sampling modes for obtaining data e Polled Sampling On command the MicroCAT takes one sample e Autonomous Sampling At pre programmed intervals the MicroCAT wakes up samples stores data in memory and powers off e Serial Line Synchronization In response to a pulse on the serial line the MicroCAT wakes up samples stores data in memory and powers off Commands can be used in various combinations to provide a high degree of operating flexibility Descriptions and examples of the sampling modes follow Note that the MicroCAT s response to each command is not shown in the examples Review the operation of the basic sampling modes and the commands described in Command Descriptions before setting up your system
78. e Timing in Section 2 Description of x N Do not 44 Section 4 Deploying and Operating MicroCAT Logging Commands continued Note STARTDDMMYY and STARTMMDDYY are equivalent Either can be used to set the delayed start date Notes e After receiving STARTLATER the MicroCAT displays not logging waiting to start in reply to the Display Status DS command Once logging has started the DS reply indicates logging data If the delayed start date and time has already passed when STARTLATER is received the MicroCAT executes STARTNOW Note You may need to send STOP several times to get the MicroCAT to respond This is most likely to occur if sampling with a small INTERVAL and transmitting real time data TXREALTIME Y STARTNOW STARTMMDDYY mmddyy STARTDDMMYY ddmmyy STARTHHMMSS hhmmss STARTLATER Start logging now at rate defined by INTERVAL Data is stored in FLASH memory Data is transmitted real time if TXREALTIME Y Set delayed logging start month day and year Must be followed by STARTHHMMSS to set delayed start time Set delayed logging start day month and year Must be followed by STARTHHMMSS to set delayed start time Set delayed logging start hour minute and second Start logging at time set with delayed start date and time commands at rate defined by INTERVAL Data is stored in FLASH memory Data is trans
79. e file with the entered deployment pressure Notes To prepare for re deployment 1 After all data has been uploaded send 0 If this is not sent new data will be stored after the last recorded sample preventing use of the entire memory capacity 2 Do one of the following e Send QS to put the MicroCAT in quiescent sleep state until ready to redeploy Leaving the MicroCAT with the batteries in place and in quiescent state retains the date and time Quiescent current is only 10 microamps so the batteries can be left in place without significant loss of capacity e Use STARTNOW to begin logging immediately e Set a date and time for logging to start using STARTMMDDYY or STARTDDMMYY STARTHHMMSS and STARTLATER A SEATERM contains a utility to convert the asc file to a cnv file that can be used by SBE Data Processing To convert the data 1 2 3 4 In SEATERM click Convert on the Toolbar The Convert dialog box appears In the dialog box enter the input asc file name and the desired output cnv file name file names must include the path If desired click Start new year at Julian time 0 to reset the Julian Day to 0 on January 1 Date and time if present in the uploaded file is converted to Julian Day with five significant digits As the default Convert does not reset the Julian Day to 0 when rolling over from December 31 to January 1 If desired click Insert
80. e in the Data Conversion or Derive module of SBE Data Processing gt SBE 37 SI and 50 Latitude is entered in the instrument s EEPROM using the LATITUDE command in SEASOFT s SEATERM terminal program software gt SBE 39 User is prompted to enter latitude if conversion of pressure to depth is requested when converting an uploaded asc file to a cnv file in SEATERM e For fresh water applications compressibility is not significant the shallow depths encountered and is ignored as is the latitude dependent gravity variation Fresh water density is presumed to be 1 gm cm and depth in meters is calculated as 1 019716 pressure in dbars CHOOSING THE RIGHT SENSOR Initial accuracy and resolution are expressed as a percentage of the full scale range for the pressure sensor The initial accuracy is 0 1 of the full scale range Resolution is 0 002 of full scale range except for the SBE 25 0 015 resolution For best accuracy and resolution select a pressure sensor full scale range to correspond to no more than the greatest depths to be encountered The effect of this choice on CTD accuracy and resolution is shown below Range Maximum Initial Error SBE 16plus 16plus IM 19plus 37 39 49 amp 50 SBE 25 meters meters Resolution meters Resolution meters 0 20 0 02 0 0004 0 003 0 100 0 10 0 002 0 015 0 350 0 35 0 007 0 052 0 1000 1 0 0 02 0 15 0 2000 2 0 0 04 0 30 0 3500 3 5 0
81. e instruments For example if 10 instruments are being returned for calibration and 1 of the 10 also requires repairs specify the serial number for the instrument requiring the repairs in the appropriate section of the form SEASOFT Version you have been using with this instrument s Perform Routine Services _ Calibration includes basic diagnostic Temperature Conductivity Pressure DO Please allow a minimum of 3 weeks after we receive the instrument s to complete calibration Full System Diagnostic and Check Out Other specify System Upgrade or Conversion Specify include instrument serial number if multiple instruments are part of shipment Diagnose and Repair Operational Faults Please send a disk containing the raw data hex or dat files which shows the problems you describe Also send the con files you used to acquire or display the data Problem Description continue on additional pages if needed include instrument serial number if multiple instruments are part of shipment 108 109 PAYMENT BILLING INFORMATION Credit Card Sea Bird accepts payment by MasterCard VISA or American Express MasterCard Visa American Express Account Number Expiration Date Credit Card Holder Name printed or typed Credit Card Holder Signature Credit Card Billing Address if different than shipping address Invoice Purchase Order If you prefer us to invoice
82. e on a claim by claim basis based on our judgment and discretion We will not honor a warranty claim if in our opinion the instrument assembly or part has been damaged by accident mishandled altered or repaired by the customer where such treatment has affected its performance or reliability For example if the CTD pressure housing is opened a PC board is replaced the housing is resealed and then it floods on deployment we do not automatically assume that the owner is to blame We will consider a claim for warranty repair of a flooded unit subject to our inspection and analysis If there is no evidence of a fault in materials e g improper or damaged o ring or seal surfaces or workmanship e g pinched o ring due to improper seating of end cap we would cover the flood damage under warranty In a different example a defective PC board is replaced with a spare and the defective PC board is sent to Sea Bird We will repair or replace the defective PC board under warranty The repaired part as well as the instrument it came from will continue to be covered under the original warranty As another example suppose an owner attempts a repair of a PC board but solders a component in backwards causing the board to fail and damage other PC boards in the system In this case the evidence of the backwards component will be cause for our refusal to repair the damage under warranty However this incident will NOT void future coverage under warran
83. e protective plugs off for deployment Install dummy plug or cable connector and locking sleeve Deploy MicroCAT using Sea Bird or customer supplied hardware zo 5 21 Unpacking Section 1 Introduction Shown below is a typical MicroCAT shipment SBE 37 SM MicroCAT Cable Spare hardware and o ring kit MicroCAT User Manual Batteries 2 Cell cleaning solution Triton X 375 10722 0137 0140 wo Software and Electronic Copies of Software Manuals and User Manual Shipping Precautions Assembled battery pack WARNING Do not ship assembled battery pack by commercial aircraft Batteries packed for shipment by commercial aircraft Note All data and setup information is preserved when the batteries are removed However the real time clock does not run Accordingly time and date must be reset after final assembly and before deployment See Section 4 Deploying and Operating MicroCAT Note Batteries must be removed before returning the instrument to Sea Bird Do not return used batteries to Sea Bird when shipping the MicroCAT for recalibration or repair Section 1 Introduction The MicroCAT was shipped from the factory with the batteries packaged separately within the shipping box not inside the MicroCAT Before attempting to communicate with the MicroCAT the batteries must be installed
84. ed hardware Reference Sheet Version 006 11 17 03 Firmware Version 2 5 1 Command Instructions and List e Input commands in upper or lower case letters and register commands by pressing Enter key e MicroCAT sends CMD if invalid command is entered If system does not return S prompt after executing a command press Enter key to get S prompt If new command is not received within 2 minutes after completion of a command MicroCAT returns to quiescent sleep state e If in quiescent sleep state re establish communications by clicking Connect on Toolbar or pressing Enter key to get S gt prompt Shown below are the commands used most commonly in the field See the Manual for complete listing and detailed descriptions CATEGORY COMMAND DESCRIPTION Status DS Display status MMDDYY mmddyy Set real time clock month day year Must follow with HHMMSS DDMMYY ddmmyy Set real time clock day month year Must follow with HHMMSS HHMMSS hhmmss Set real time clock hour minute second BAUD x x baud rate 600 1200 2400 4800 9600 19200 38400 Default 9600 OUTPUTSAL x x Y calculate and output salinity psu with each sample x N do not OUTPUTSV x x Y calculate and output sound velocity m sec with each sample x N do not x 0 output raw hex data for diagnostic use Setup FORMAT x 1 default output converted d
85. electronics compartment to access the printed circuit boards e the SBE 39 and 48 the electronics must be removed or exposed to access the battery Therefore install a new desiccant bag each time you open the housing to replace a battery Storage and Handling Adsorption Rate for Sorb It amp from http www s cpp com pdf DesiccantPerfData pdf Testing by S d Chemie desiceant T 30 C 60 relative humidity static condictions at 60 relative humidity and 30 C shows that 30 approximately 2596 of the desiccant s adsorbing 26 ee i capacity is used up after only hour of exposureto constantly replenished supply of moisture in the 20 air In other words if you take a bag out of a 5 container and leave it out on a workbench for 5 12 1 hour one fourth of its capacity is gone before 4 10 you ever install it in the instrument Therefore 5 eae e Keep desiccant bags in a tightly sealed Wi uem m s impermeable container until you are ready to 0 use them Open the container remove a bag 5 10 15 20 and quickly close the container again 1 Baur _ time hours e you remove the bag s from the sealed approximately 25 of container rapidly install the bag s in the adsorption capacity lost instrument housing and close the housing Do not use the desiccant bag s if exposed to air for more than a total of 30 minutes 99 Regeneration drying of D
86. equency from the oscillator Real Time Clock To minimize battery current drain a low power watch crystal is used as the real time clock frequency source Initial error and ambient temperature induced drift are compensated by measuring its actual frequency against the each time a reading of temperature and conductivity is made during calibration The measured discrepancy if any is used to arithmetically correct the low power clock during normal operation 49 Appendix 11 Electronics Disassembly Reassembl Appendix II Electronics Disassembly Reassembly Disassembly Remove the end cap and battery pack following instructions in Section 3 Preparing MicroCAT for Deployment Do not remove the titanium guard The electronics are on a sandwich of three rectangular PCBs These PCBs are assembled to a bulkhead that can be seen at the bottom of the battery compartment To remove the PCB assembly A Use long screwdriver 1 screwdriver to remove the Phillips head screw at the bottom of the battery compartment The Phillips head screw is a 198 mm 7 8 inch threaded rod with Phillips head B Pull out the PCB assembly using the PVC pylon post with Molex connector The assembly will pull away from the 10 position edge connector used to connect to the sensors Reassembly 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
87. es will be graphed in clusters appearing at either 1 or 2 meters on the depth axis High range sensors used in shallow water generally provide better accuracy than their absolute specifications indicate With careful use they may exhibit accuracy approaching their resolution limits For example a 3500 meter sensor has a nominal accuracy irrespective of actual operating depth of 3 5 meters Most of the error however derives from variation over time and temperature of the sensor s offset while little error occurs as a result of changing sensitivity 2 MINIMIZING ERRORS Offset Errors The primary offset error due to drift over time can be eliminated by comparing CTD readings in air before beginning the profile to readings from a barometer Follow this procedure 1 Allow the instrument to equilibrate in a reasonably constant temperature environment for at least 5 hours Pressure sensors exhibit a transient change in their output in response to changes in their environmental temperature allowing the instrument to equilibrate before starting will provide the most accurate calibration correction 2 Place the instrument in the orientation it will have when deployed 3 Set the pressure offset to 0 0 5 the con file using SEASAVE or SBE Data Processing for SBE 1 6plus 16plus IM 19plus 25 or 49 Inthe CTD s EEPROM using the appropriate command SEATERM for SBE l6plus 16plus IM 19plus 37 39 49 or 50 4 Co
88. esiccant Replacement desiccant bags are available from Sea Bird PN 60039 is a metal can containing 25 1 gram desiccant bags and 1 humidity indicator card The 1 gram bags are used in our smaller diameter housings such as the SBE 3 plus F and S 4 M and C 5T 37 SI SM 5 and IMP 38 39 43 44 45 48 49 and 50 PN 31180 is a 1 3 ounce desiccant bag used our SBE 16plus l6plus IM 19plus and 21 PN 30051 is a 1 ounce desiccant bag The 1 ounce bags are used in our larger diameter housings such as the SBE 9plus 16 17plus 19 25 26 32 AFM and However if you run out of bags you can regenerate your existing bags using the following procedure provided by the manufacturer S d Chemie Performance Packaging a Division of United Catalysts Inc MIL D 3464 Desiccant Regeneration Procedure Regeneration of the United Desiccants Tyvek Desi or Sorb It bags or United Desiccants X Crepe Desi Pak or Sorb It bags can be accomplished by the following method 1 Arrange the bags a wire tray in a single layer to allow for adequate air flow around the bags during the drying process The oven s inside temperature should be room or ambient temperature 25 29 4 C 77 85 F A convection circulating forced air type oven is recommended for this regeneration process Seal failures may occur if any other type of heating unit or appliance is used 2 When placed in for
89. esponse and writes the command and response to the upload file This displays the calibration coefficients D Ifyou selected Prompt for header information in the Configuration Options dialog box Configure menu a dialog box with the header form appears Enter the desired header information and click OK E In the Open dialog box enter the desired upload file name and click OK The upload file has a asc extension F SEATERM sends the data upload DDb e command G When the data has been uploaded SEATERM shows the S prompt 39 Section 4 Deploying and Operating 9 Ensure all data has been uploaded from the MicroCAT by reviewing the data Notes e The entered deployment pressure can differ from the reference pressure entered prior to deployment using REFPRESS Pressure used internally by the MicroCAT to calculate conductivity has only a small effect on conductivity However pressure has a larger effect on the salinity calculation performed in SBE Data Processing s Derive module Entering the deployment pressure when converting the data allows you to provide more accurate pressure information than may have been available prior to deployment for calculation of salinity and other parameters in SBE Data Processing f your MicroCAT includes an optional pressure sensor entering a deployment pressure has no effect on the data Convert does not overwrite the actual pressure data in th
90. f users who prefer to use older SEASOFT versions the new certificates also list a c d and FO coefficients corresponding to IPTS68 T68 temperatures as required by SEASOFT DOS versions older than 4 208 It is important to note that the international oceanographic research community will continue to use T68 for computation of salinity and other seawater properties Therefore following the recommendations of Saunders 1990 and as supported by the Joint Panel on Oceanographic Tables and Standards 1991 SEASOFT DOS 4 200 and later and all versions of SEASOFT Win32 convert between T68 and T90 according to the linear relationship Tes 1 00024 The use of T68 for salinity and other seawater calculations is automatic in all SEASOFT programs However when selecting temperature as a display output variable you will be prompted to specify which standard T90 or T68 is to be used to compute temperature SEASOFT recognizes whether you have entered T90 or T68 coefficients in the configuration con file and computes T90 temperature directly or calculates it from the Saunders linear approximation depending on which coefficients were used and which display variable type is selected For example if g i FO coefficients T90 are entered in the con file and you select temperature variable type as T68 SEASOFT computes T90 temperature directly and multiplies it by 1 00024 to display T68 Conversely if a b c d and FO coefficients T68
91. from O rings and mating surfaces with lint free cloth Inspect O rings and mating surfaces for dirt nicks and cuts Clean as necessary Apply light coat of O ring lubricant to O ring and mating surfaces Plug Molex connector together Fit end cap into housing Reinstall 2 flat Phillips head screws to secure 2 Program MicroCAT for intended deployment see other side of this sheet for Command Instructions and List A Set time and date B Establish logging parameters C Ensure all data has been uploaded and then set SAMPLENUM 0 to make entire memory available for recording If SAMPLENUM is not reset to zero data will be stored after last recorded sample D Use one of following sequences to initiate logging STARTNOW to start logging now taking a sample consisting of NAVG measurements every INTERVAL seconds STARTMMDDYY STARTHHMMSS STARTLATER to start logging at specified date and time taking a sample consisting of NAVG measurements every INTERVAL seconds e SYNCMODE Y to place MicroCAT in serial line sync mode so that a simple pulse on RS 232 line will initiate sample consisting of NAVG measurements 3 Wiring to MicroCAT deploy with dummy plug or I O cable for optional external power and or serial communication during deployment A Standard connector Align raised bump on side of dummy plug connector with large pin on MicroCAT B Install locking sleeve 4 Mount MicroCAT using Sea Bird or customer suppli
92. g data from MicroCAT to computer For the MicroCAT this is the same as the baud for general communication set on the COM Settings tab Upload data i scan number range C From single cast By cast number range Upload Data in Data menu All as single file All data uploaded into one file By scan number range SEATERM prompts for beginning and ending scan sample numbers and uploads all data within range into one file Note Set up Upload Settings Header Cancel Default Help Information and or Header Form Steps 2 through 4 The first time you upload data and Make the selection for Upload Settings If you want to change upload header parameters 3 Click on the Header Information tab The dialog box looks like this SBE 37 Configuration Options x Defines header COM Settings Upload Settings 1 information included with uploaded data Prompt for header Header Information information Each time data is uploaded Prompt for header information user is prompted to fill out user de ned C Include default header form in the upload file header form C Don t include default header form in the upload file Include default header form in upload file User defined default header form included in upload file User is not prompted to add any information when data is uploaded Do not include default header form i
93. ged data in memory and outputs converted averaged data Within 25 seconds SYNCWAIT timeout select Send 5 second break in Communications menu to disable serial line sync mode Press Enter key to get S gt prompt S DS to verify MicroCAT is communicating Click Upload on Toolbar program leads you through screens to define data to be uploaded and where to store it 5208 Real Time Data Acquisition The length of cable that the MicroCAT can drive is dependent on the baud Notes rate The allowable combinations are Baud rate is set with BAUD Set TXREALTIME Y to output Maximum Cable Length meters Maximum Baud Rate real time data 1600 600 See Command Descriptions in 800 1200 this section for command details 400 2400 200 4800 100 9600 50 19200 25 38400 If acquiring real time data click Capture on SEATERM s Toolbar before you begin logging The data displayed in SEATERM will be saved to the designated file Process the data as desired Note that this real time data file cannot be processed by SBE Data Processing as it does not have the required headers and format To process data with SBE Data Processing upload the data from the MicroCAT s memory 24 40 Section 4 Deploying and Operating Timeout Description The MicroCAT has a timeout algorithm If the MicroCAT does not receive a command for two minutes it powers down its communica
94. he MicroCAT is logging data and the battery voltage is less than 6 15 volts for ten consecutive scans the MicroCAT halts logging and sets the logging status to low battery Notes TXREALTIME and STORETIME apply to autonomous sampling only e To capture real time data to a file do the following before starting logging 1 Click Capture on the Toolbar 2 Enter the desired file name in the dialog box The capture status displays in the status bar at the bottom of the screen Logging commands direct the MicroCAT to sample data at pre programmed intervals and store the data in its FLASH memory INTERVAL x STORETIME x TXREALTIME x 28 x interval seconds between samples 5 32767 When commanded to start sampling with STARTNOW or STARTLATER at x second intervals MicroCAT takes NAVG measurements stores averaged data in FLASH memory transmits real time averaged data 1f TXREALTIME Y and powers down x Y Store date and time with each sample This adds 4 bytes per scan x N Do not x Y Output real time data to computer Averaged data is transmitted immediately after it is sampled This does not affect storing data to FLASH memory but slightly increases current consumption and increases amount of time needed to sample and then transmit data If outputting real time data do not set INTERVAL to less than 10 seconds if NAVG 1 for larger values of NAVG increase INTERVAL see Sampl
95. instruments use strain gauge pressure sensors manufactured by GE Druck SBE l6plus 16plus IM SEACAT not 16 with optional strain gauge pressure sensor SBE 19plus SEACAT Profiler not 19 SBE 25 SEALOGGER CTD which uses SBE 29 Strain Gauge Pressure Sensor built after March 2001 SBE 37 37 IM SM SMP and SI with optional pressure sensor built after September 2000 SBE 39 Temperature Recorder with optional pressure sensor built after September 2000 SBE 49 FastCAT CTD Sensor SBE 50 Digital Oceanographic Pressure Sensor Note SBE 16 and SBE 19 SEACATS were originally supplied with other types of pressure sensors However a few of these instruments have been retrofitted with Druck sensors The Druck sensors are designed to respond to pressure in nominal ranges 0 20 meters 0 100 meters 0 350 meters 0 1000 meters 0 2000 meters 0 3500 meters and 0 7000 meters with pressures expressed in meters of deployment depth capability The sensors offer an initial accuracy of 0 196 of full scale range DEFINITION OF PRESSURE TERMS The term psia means pounds per square inch absolute absolute means that the indicated pressure 18 referenced to a vacuum For oceanographic purposes pressure is most often expressed in decibars 1 dbar 1 4503774 psi A dbar is 0 1 bar a bar is approximately equal to a standard atmosphere 1 atmosphere 1 01325 bar For historical reasons press
96. ion properly and be free of defects in materials and workmanship Should a Sea Bird instrument fail during the warranty period return it freight pre paid to our factory We will repair it or at our option replace it at no charge and pay the cost of shipping it back to you Certain products and components have modified coverage under this warranty as described below LIMITED WARRANTY ON SERVICE amp REPAIRS Service work repairs replacement parts and modifications are warranted to be free of defects in materials or workmanship for the remainder of the original 5 year warranty or one year from the date of shipment from our factory after repair or service which ever is longer Certain products and components have modified coverage under this warranty as described below MODIFICATIONS EXCEPTIONS EXCLUSIONS 1 The SBE 43 DO sensor is warranted to function properly for 5 years Under normal use however the electrolyte in an SBE 43 DO sensor will require replenishment after about 3 years Purchase of an SBE 43 includes one free electrolyte replenishment as necessitated by chemical depletion of electrolyte anytime during the warranty period To obtain the replenishment return the sensor freight pre paid to our factory We will refurbish it for free electrolyte refill membrane replacement and recalibration and pay the cost of shipping it back to you Membrane damage or depletion of electrolyte caused by membrane damage is not covered by this
97. ir 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 47 63 Glossary Glossa Battery pack Six 9 volt nominal 1 2 amp hour batteries each containing lithium cells of the type commonly used in cameras The battery pack also includes two small PCBs and a brass sleeve Convert Toolbar button in SEATERM to convert ASCII asc data uploaded with SEATERM to cnv format When converted to cnv format SBE Data Processing can be used to analyze and display data Fouling Biological growth in the conductivity cell during deployment MicroCAT High accuracy conductivity temperature and optional pressure recorder A number of models are available SBE37 IM Inductive Modem internal battery and memory e SBE37 IMP Inductive Modem internal battery and memory integral Pump e SBE 37 SM Serial interface internal battery and Memory e SBE 37 SMP Serial interface internal battery and Memory integral Pump e SBE 37 SI Serial Interface only no internal battery or memory The SM SMP and SI are available with RS 232 standard or RS 485 optional interface PCB Printed Circuit Board SBE Data Processing Sea Bird s Win 95 98 NT 2000
98. is Product Net Contents Two antifoulant devices 7 14 g Sea Bird Electronics Inc EPA Registration No 74489 1 1808 136 Place EPA Establishment No 74489 WA 1 Bellevue WA 98005 54 70 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 esee 53 0 OTHER INGREDIENTS 2 47 0 Gre Mets E a ot Mactan M Ded 100 0 DANGER See Precautionary Statements for additional information FIRST AID If on skin or Take off contaminated clothing clothing Rinse skin immediately with plenty of water for15 20 minutes Call a poison control center or doctor for treatment advice If swallowed Call poison control center or doctor immediately for treatment advice Have person drink several glasses of water Do not induce vomiting Do not give anything by mouth to an unconscious person If in eyes Hold eye open and rinse slowly and gently with water for 15 20 minutes Remove contact lenses 1f 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 Na
99. k State RS 232 RX line less than 0 5 volts MicroCAT immediately powers down Serial line sync mode remains enabled SYNCMODE Y SYNCWAIT 0 and Space State RS 232 RX line greater than 3 volts MicroCAT monitors the RS 232 line for a time equivalent to 25 characters actual length of time is dependent on the baud rate gt Line remains in space state MicroCAT disables serial line sync mode sets SYNCMODE to N at end of time Once serial line sync mode is disabled you can communicate with the MicroCAT using the full range of commands polled sampling commands logging commands upload command etc gt Line returns to mark state MicroCAT immediately powers down Serial line sync mode remains enabled SYNCMODE Y e SYNCWAIT gt 0 MicroCAT monitors the RS 232 line for SYNCWAIT seconds Each time a carriage return Enter key is detected the time out clock is reset to 2 minutes Within that time period you can communicate with the MicroCAT using the full range of commands polled sampling commands logging commands uploading command etc While the MicroCAT is monitoring gt More than 25 break characters are received MicroCAT disables serial line sync mode sets SYNCMODE to Once serial line sync mode is disabled you can communicate with the MicroCAT using the full range of commands polled sampling commands logging commands upload command etc gt Less than 25 break characters are received MicroCAT po
100. last saved settings for that instrument like this x COM Settings Upload Settings Header Information Interface for communication between computer and MicroCAT Firmware Version COMM Port Baud Rate il 9600 Data Bits 7 Parity Mode 95 232 Full Duplex C 5 485 Half Duplex C Inductive Modem Modem R5485 ID Prompt 0 Automatically get ID C Even C Odd None Cancel Default Help Make the selections in the Configuration Options dialog box COMM Port COM through COM 10 as applicable Baud Rate 9600 documented on front cover of this manual Data Bits 8 Parity None Mode RS 232 Full Duplex Click OK to save the settings In the Communications menu select Options Cycle baud when connecting Click Connect on the Toolbar The SEATERM tries to connect to the MicroCAT at the baud set in Step 3 If it cannot it cycles through all other possible baud rates to try to connect When it connects the display looks like this Communication Established 5 This shows that correct communications between the computer and the MicroCAT has been established If the system does not respond with the S gt prompt e Click Connect again e Verify the correct instrument was selected in the Configure menu and the settings were entered correctly in the Configuration Options dialog box No
101. lica such as quartz cristobalite or tridymite or with diatomaceous earth or other naturally occurring forms of amorphous silica that frequently contain crystalline forms This product is in granular form and packed in bags for use as a desiccant Therefore no exposure to the product is anticipated under normal use of this product Avoid inhaling desiccant dust SECTION Ill PHYSICAL DATA Appearance and Odor White granules odorless Melting Point gt 1600 Deg C gt 2900 Deg F Solubility in Water Insoluble Bulk Density gt 40 1 ft Percent Volatile by Weight 1750 Deg F 1096 100 Sud Chemie Performance ee Packaging SUD CHEMIE a 101 Christine Dr Creating Performance Technology Belen New Mexico 87002 EM Phone 505 864 6691 ISO 9002 CERTIFIED Fax 505 864 9296 MATERIAL SAFETY DATA SHEET August 13 2002 SORB IT Packaged Desiccant SECTION IV FIRE EXPLOSION DATA Fire and Explosion Hazard Negligible fire and explosion hazard when exposed to heat or flame by reaction with incompatible substances Flash Point Nonflammable Firefighting Media Dry chemical water spray or foam For larger fires use water spray fog or foam Firefighting Nonflammable solids liquids or gases Cool containers that are exposed to flames with water from the side until well after fire is out For massive fire in enclosed area use unmanned hose holder or monitor
102. lkhead connector is not loosened e Itisacommon misconception that the locking sleeve provides watertight integrity It does not and continued re tightening of the locking sleeve will not fix a leaking connector e As part of routine maintenance at the end of every cruise remove the locking sleeve slide it up the cable and rinse the connection still mated with fresh water This will prevent premature cable failure Locking Sleeve Cold Weather Tips In cold weather the connector may be hard to install and remove Removing a frozen inline connector 1 Wrap the connector with a washrag or other cloth 2 Pour hot water on the cloth and let the connector sit for a minute or two The connector should thaw and become flexible enough to be removed Installing an inline connector When possible mate connectors in warm environments before the cruise and leave them connected If not warm the connector sufficiently so it is flexible A flexible connector will install properly By following these procedures you will have many years of reliable service from your cables 96 Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 lt Bellevue WA 98005 E mail seabird seabird com USA Web www seabird com APPLICATION NOTE NO 68 Revised March 2004 Using USB Ports to Communicate with Sea Bird Instruments Most Sea Bird instruments use the RS 232 protocol for transmitting setup com
103. llect pressure data from the instrument using SEASAVE or SEATERM see instrument manual for details If the instrument is not outputting data in decibars convert the output to decibars 5 Compare the instrument output to the reading from a good barometer placed at the same height as the pressure sensor Calculate offset decibars barometer reading converted to decibars instrument reading decibars 6 Enter calculated offset in decibars Inthe con file using SEASAVE or SBE Data Processing for SBE 16plus 16plus IM 19plus 25 or 49 e Inthe CTD s EEPROM using the appropriate command in SEATERM for SBE 16plus 16plus IM 19plus 37 39 49 or 50 Note For instruments that store calibration coefficients in EEPROM and also use a con file SBE 16 1 6plus IM 19plus and 49 set the pressure offset Steps 3 and 6 above in both the EEPROM and in the con file Offset Correction Example Pressure measured by a barometer is 14 65 psia Pressure displayed from instrument is 2 5 dbars Convert barometer reading to dbars using the relationship 14 7 0 6894759 dbars Barometer reading 14 65 14 7 0 6894759 0 034 dbars Offset 0 034 2 5 2 466 dbar Enter offset in con file if applicable and in instrument EEPROM if applicable Another source of offset error results from temperature induced drifts Because Druck sensors are carefully temperature compensated errors from
104. llows multiple MicroCATs to share a common 2 wire cable minimizing cable complexity for C T chains User selectable operating modes include Autonomous Sampling allows sampling at pre programmed intervals of 5 seconds to 9 1 hours with the MicroCAT going to sleep between samples Polled Sampling allows sampling and data transmission to be triggered by a command from a computer or satellite radio or wire telemetry equipment Serial Line Sync allows sampling and data transmission to be triggered by a pulse on the serial line which causes a sleeping MicroCAT to wake up sample record and power off automatically SOFTWARE The MicroCAT is supplied with a powerful Windows 95 98 NT 2000 XP software package SEASOFT Win32 which includes e SEATERM terminal program for easy communication and data retrieval SBE Data Processing programs for calculation display and plotting of conductivity temperature pressure optional and derived variables such as salinity and sound velocity Sea Bird Electronics Inc E mail seabird seabird com 1808 136th Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Website http www seabird com Fax 425 643 9954 80 MicroCAT C T Recorder Serial interface and Memory SBE 37 SM 19 0 0 75 108 0 3 45 4 25 139 7 DATA STORAGE AND BATTERY ENDURANCE Converted temperature and conductivity are stored 67 3 5 bytes per
105. mands to the instrument and receiving data from the instrument However many newer PCs and laptop computers have USB port s instead of RS 232 serial port s USB serial adapters are available commercially These adapters plug into the USB port and allow one or more serial devices to be connected through the adapter Sea Bird tested USB serial adapters from three manufacturers with our instruments and verified compatibility These manufacturers and the tested adapters are e Keyspan www keyspan com High Speed USB Serial Adapter part USA 19QW and USB 4 Port Serial Adapter part USA 49W e Edgeport www ionetworks com Standard Serial Converter Edgeport 2 part 301 1000 02 IOGEAR www iogear com USB 1 1 to Serial Converter Cable model GUC232A Other USB adapters from these manufacturers and adapters from other manufacturers may also be compatible with Sea Bird instruments We recommend testing of any other adapters with the instrument before deployment to verify that there is no problem 97 Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 CLE Bellevue WA 98005 E mail seabird seabird com USA Web www seabird com APPLICATION NOTE NO 69 July 2002 Conversion of Pressure to Depth Sea Bird s SEASOFT software can calculate and output depth if the instrument data includes pressure Additionally some Sea Bird instruments such as the SBE 37 SI or SBE 50 can be
106. mitted real time if TXREALTIME Y S gt STARTLATER or S gt STARTLATER Example Program MicroCAT to start logging on 20 January 2004 12 00 00 user input in bold S gt STARTMMDDYY 012004 S gt STARTHHMMSS 120000 S gt STARTDDMMYY 200104 S gt STARTHHMMSS 120000 STOP 29 Stop logging that was started with STARTNOW or STARTLATER or stop waiting to start logging if STARTLATER was sent but logging has not begun yet Press Enter key to get S gt prompt before entering STOP STOP must be sent before uploading data using Upload on Toolbar Upload Data in Data menu or DDb e 45 Section 4 Deploying and Operating Polled Sampling Commands Note The MicroCAT has a buffer that stores the most recent data sample Unlike data in the FLASH memory data in the buffer is erased upon removal or failure of power These commands are used by an external controller to request a sample from the MicroCAT Each sample consists of NAVG measurements which are averaged and stored in the buffer To interrupt taking a sample press the Esc key TS TSR TSS TSSON SLT SLTR SL Take sample output converted averaged data and leave power on Data is not stored in FLASH memory Take sample output averaged raw data and leave power on Data is not stored in FLASH memory Take sample store averaged data in FLASH memory output converted averaged data and turn power
107. n compliance with OSHA regulations are recommended Consult your safety equipment supplier SECTION IX SPECIAL PRECAUTIONS Avoid breathing dust and prolonged contact with skin Silica gel dust causes eye irritation and breathing dust may be harmful 103 Sud Chemie Performance Packaging 101 Christine Dr Belen New Mexico 87002 Phone 505 864 6691 Fax 505 864 9296 S D CHEMIE Creating Performance Technology ISO 9002 CERTIFIED MATERIAL SAFETY DATA SHEET August 13 2002 SORB IT Packaged Desiccant No Information Available HMIS Hazardous Materials Identification System for this product is as follows Health Hazard 0 Flammability 0 Reactivity 0 Personal Protection HMIS assigns choice of personal protective equipment to the customer as the raw material supplier is unfamiliar with the condition of use The information contained herein is based upon data considered true and accurate However United Desiccants makes no warranties expressed or implied as to the accuracy or adequacy of the information contained herein or the results to be obtained from the use thereof This information is offered solely for the user s consideration investigation and verification Since the use and conditions of use of this information and the material described herein are not within the control of United Desiccants United Desiccants assumes no responsibility for inju
108. n upload file Header information not included in upload file Cancel Default Help DK Select the desired header information option Click OK to save the settings 37 53 Section 4 Deploying and Operating MicroCAT 4 Inthe Configure menu select Header Form to customize the header The dialog box looks like this default prompts are shown Edit Header Prompts BIST Promgttorline t Ship Promptfar line 2 puse Promptioriine3 Staion SS Promptfor line 4 Latitude Prompt for line 5 0 Prompt for line Prornptfor line 7 Pompforineg Prompt for line 10 Prompttor line 11 Prompt for line 12 00 0 11 The entries are free form 0 to 12 lines long This dialog box establishes e header prompts that appear for the user to fill in when uploading data if Prompt for header information was selected in the Configuration Options dialog box Step 3 e header included with the uploaded data if Include default header form in upload file was selected in the Configuration Options dialog box Step 3 Enter the desired header header prompts Click OK 5 Click Connect on the Toolbar to begin communications with the MicroCAT The display looks like this Communication Established S This shows that correct communications between the computer and the MicroCAT has been established If the system does not respond as sho
109. nation System NPDES permit and the permitting authority has been notified in writing prior to discharge Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority For guidance contact your State Water Board or Regional Office of EPA This material is toxic to fish Do not contaminate water when cleaning equipment or disposing of equipment washwaters PHYSICAL OR CHEMICAL HAZARDS Do not use or store near heat or open flame Avoid contact with acids and oxidizers DIRECTIONS FOR USE It is a violation of Federal Law to use this product in a manner inconsistent with its labeling For use only in Sea Bird Electronics conductivity sensors Read installation instructions in the applicable Conductivity Instrument Manual 56 72 Appendix IV 24173 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
110. nd Calibration 4 Reinstall the anti foulant device cup and the guard A Carefully reinstall the small section of Tygon tubing and anti foulant device cup on the end of the glass cell B Carefully place the guard over the housing aligning all holes C Reinstall the two screws attaching each anti foulant device cup to the guard D Reinstall the four Phillips head screws attaching the guard to the housing and sensor end cap 5 Prepare for deployment or If being stored gently blow through the cell to remove larger water droplets Do not use compressed air which typically contains oil vapor Replace the protective plugs in the anti foulant device cups Pressure Sensor optional Maintenance Pressure sensor port plug CAUTION Do not put a brush or any object in the pressure port Doing so may damage or break the pressure sensor At the factory the pressure sensor and pressure port were filled with a silicon oil and a pressure port plug was used to retain the oil The oil transmits hydrostatic pressure to the pressure sensor inside the instrument Because of the viscosity of the silicone oil the oil does not run out of the pressure sensor port plug However due to temperature and pressure cycling over long periods it is normal for some oil to slowly leak out of the plug It is not necessary to refill the oil Periodically approximately once a year inspect the pressure port to remove any particles debris et
111. nector Note bulge in connector due to trapped air 7 After the cable is mated run your fingers along the inline connector toward the bulkhead milking any trapped air out of the connector You should hear the air being ejected CAUTION Failure to eject the trapped air will result in the connector leaking 94 Mate the inline connector to the bulkhead being careful to align the pins with the sockets Do not twist the inline connector on the bulkhead connector Twisting can lead to bent pins which will soon break Push the connector all the way onto the bulkhead There may be an audible pop which is good With some newer cables or in cold weather there may not be an initial audible pop 95 Locking Sleeve Installation After the connectors are mated install the locking sleeve The locking sleeve secures the inline connector to the bulkhead connector and prevents the cable from being inadvertently removed Important points regarding locking sleeves e Tighten the locking sleeve by hand Do not use a wrench or pliers to tighten the locking sleeve Overtightening will gall the threads which can bind the locking sleeve to the bulkhead connector Attempting to remove a tightly bound locking sleeve may instead result in the bulkhead connector actually unthreading from the end cap A loose bulkhead connector will lead to a flooded instrument Pay particular attention when removing a locking sleeve to ensure the bu
112. not use WD 40 or other 1 Lightly lubricate the inside of the dummy plug cable connector with petroleum based silicone grease DC 4 or equivalent lubricants as they will damage the connectors 2 Standard Connector Install the plug cable connector aligning the raised bump on the side of the plug cable connector with the large pin pin 1 ground the MicroCAT Remove any trapped by burping or gently squeezing the plug connector near the top and moving your fingers toward the end cap OR MCBH Connector Install the plug cable connector aligning the pins 3 Place the locking sleeve over the plug cable connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Verify that a cable or dummy plug 18 installed on the MicroCAT before deployment 41 57 Conductivity Cell Maintenance CAUTIONS Do not store the MicroCAT with water in the conductivity cell Freezing temperatures for example in Arctic environments or during air shipment can break the conductivity cell if it is full of water Do not put a brush or any object inside the conductivity cell to clean it Putting an object inside the cell can damage and break the cell Section 5 Routine Maintenance and Calibration The MicroCAT s conductivity cell is shipped dry to prevent freezing in shipping Routine Rinsing after Recovery After each recovery rinse the cell
113. nsmits real time data and powers off in response to a pulse on the serial line This provides an easy method for synchronizing MicroCAT sampling with other instruments such as Acoustic Doppler Current Profilers ADCPs or current meters without drawing on their battery or memory resources The MicroCAT can be deployed in two ways e Cable installed The MicroCAT be remotely controlled allowing for polled sampling or serial line sync or for periodic requests of data from the MicroCAT memory If desired data can be periodically uploaded while the MicroCAT remains deployed Dummy plug installed The MicroCAT cannot be remotely controlled Autonomous sampling is programmed before deployment and data is uploaded after recovery Calibration coefficients stored in EEPROM allow the MicroCAT to transmit data in engineering units The MicroCAT retains the temperature and conductivity sensors used in the SBE 16 SEACAT C T Recorder but has improved acquisition electronics that increase accuracy and resolution and lower power consumption The MicroCAT s aged and pressure protected thermistor has a long history of exceptional accuracy and stability typical drift is less than 0 002 C per year Electrical isolation of the conductivity electronics eliminates any possibility of ground loop noise The MicroCAT s internal field conductivity cell is immune to proximity errors and unaffected by external fouling A plastic cup with threa
114. ntain detailed information on the setup and use of SBE Data Processing and SEASOFT DOS 25 Section 2 Description of MicroCAT Specifications Note Pressure ranges are expressed in meters of deployment depth capability Temperature Conductivity Optional C S m Pressure 0 to full scale range Measurement 5 to 35 0 to 7 20 100 350 Range Oto 70 mS cm 1000 2000 3500 7000 meters Initial 0 002 0 0003 0 1 of full scale Accuracy 0 003 mS cm range Typical Stability 0 0002 2 0 004 x scale per month 9 0 00001 0 002 of full scale Resolution 0 0001 0 0001 mS cm range 0 to 6 physical Sens r calibration over Ambient pressure to 1 to 32 the range 2 6 to full scale range in Calibration 6 S m plus zero 5 steps conductivity air Counter Quartz TCXO 2 ppm per year aging Time Base 5 ppm vs temperature 5 to 30 C Memory 2048K byte non volatile FLASH memory Data Storage Converted temperature and conductivity 5 bytes per sample 2 5 bytes each Time 4 bytes per sample Pressure optional 2 bytes per sample Recorded Parameters Memory Space Total Number of Samples C and T 410 000 and P 290 000 C T and time 225 000 C T P and time 185 000 Real Time Clock Watch crystal type 32 768 Hz corrected for drift and aging by comparison to MicroCAT counter time base to produce overall 5 ppm accuracy 2 6 minute
115. nverted data date mm dd yyyy x reference pressure gauge in decibars used for REFPRESS x conductivity computation when MicroCAT does not have pressure sensor NAVG x x number of measurements 1 1000 to take and average per sample Default 1 x sample number for first sample when sampling begins After all previous data has been uploaded set SAMPLENUMv x _ to 0 before starting to sample to make entire memory available for recording If not reset to 0 data stored after last sample Qs Enter quiescent sleep state Main power turned off but data logging and memory retention unaffected x interval seconds between samples 5 32767 When commanded to start sampling with STARTNOW or STARTLATER at x second intervals MicroCAT INTERVAL x takes sample consisting of NAVG measurements stores averaged data in FLASH memory transmits real time averaged data if TXREALTIME Y and powers down STORETIME x a store date and time with each sample x N do not TXREALTIME x output real time averaged data x N do not Logging STARTNOW Start logging now STARTMMDDYY Delayed logging start month day year mmddyy Must follow with STARTHHMMSS STARTDDMMYY Delayed logging start day month year ddmmyy Must follow with STARTHHMMSS ss EE Delayed logging start hour minute second STARTLATER Start logging at delayed logging start time Stop logging or stop waiting to start logging Press STOP Enter key to get S gt prompt before
116. oCAT 0 0653 Maximum cable length wire resistance per foot Example For 24 gauge wire what is the maximum distance to transmit power to the MicroCAT For 25 milliamp current V 1 volt 0 025 amps 40 ohms For 24 gauge wire resistance is 0 0257 ohms foot Maximum cable length 40 ohms 0 0257 ohms foot 1556 feet 474 meters Cable is limited to 474 meters because of power constraints Alternatively use wire with smaller resistance 13 29 ection 3 Preparing MicroCAT for Deployment Section 3 Preparing MicroCAT for Deployment This section describes the pre check procedure for preparing the MicroCAT for deployment Installation of the battery pack installation of Sea Bird software and testing power and communications are discussed Battery Installation WARNING Do not air ship the MicroCAT with batteries installed See Shipping Precautions in Section 1 Introduction Screws securing connector end cap screws shown partially removed Cable mounting guide Molex connector O rings Description of Batteries and Battery Pack Sea Bird supplies six 9 volt batteries shipped with the MicroCAT in a separate bag Since they use solid cathode cells and the total lithium contained in each 9 volt battery is less than 2 grams these batteries are not hazardous material as defined by IATA or the US DOT They are free of shipping restricti
117. off If MicroCAT is logging or waiting to log when TSS is sent MicroCAT executes TS instead Take sample store averaged data in FLASH memory output converted averaged data and leave power on If MicroCAT is logging or waiting to log when TSSON is sent MicroCAT executes TS instead Output converted averaged data from last sample then take new sample and leave power on Data is not stored in FLASH memory Output raw averaged data from last sample then take new sample and leave power on Data is not stored in FLASH memory Output converted averaged data from last sample taken with either a Polled Sampling Command or with data logging see Logging Commands and leave power on Serial Line Syne Commands Note See Sampling Modes above for complete details on the operation of serial line synchronization SYNCMODE x SYNCWAIT x 30 x Y Enable serial line synchronization When RS 232 RX line is high 3 10 VDC for 1 to 1000 milliseconds MicroCAT takes a sample consisting of NAVG measurements stores averaged data in FLASH memory transmits real time averaged data and powers down x N Disable serial line synchronization x time seconds MicroCAT monitors RS 232 line for commands after taking a sample in serial line sync mode Range 0 120 seconds default 0 46 Section 4 Deploying and Operating MicroCAT Data Upload Command Notes To save data to a file click
118. ons but shipment of the assembled battery pack is governed by the Hazardous Material Regulations In addition to the six 9 volt batteries the assembled battery pack consists of e brass sleeve with lower printed circuit board PCB containing banana jacks e upper PCB containing banana plugs No soldering is required when assembling the battery pack because the batteries use the banana plugs and jacks as and terminals Installing Batteries Remove the I O connector end cap Wipe the outside of the I O end cap and housing dry being careful to remove any water at the seam between them B Remove the two flat Phillips head titanium machine screws Do not remove any other screws from the housing C Remove the I O end cap by pulling firmly and steadily on the plastic cable mounting guide It may be necessary to twist or rock the end cap back and forth or use a non marring tool on the edge of the cap to loosen it D The end is electrically connected to the electronics with a Molex connector Holding the wire cluster near the connector pull gently to detach the female end of the connector from the pins E Remove any water from the O ring mating surfaces inside the housing with a lint free cloth or tissue F Putthe end cap aside being careful to protect the O rings from damage or contamination 14 5 30 ection 3 Preparing MicroCAT for Deployment Battery pack assembly Brass sleeve
119. or Cleaning and Installation e Locking Sleeve Installation e Cold Weather Tips Connector Cleaning and Installation 1 Carefully clean the bulkhead connector and the inside of the mating inline cable end connector with a Kimwipe Remove all grease hair dirt and other contamination Clean bulkhead connector Clean inside of connector 2 Inspect the connectors A Inspect the pins on the bulkhead connector for signs of corrosion The pins should be bright and shiny with no discoloration If the pins are discolored or corroded clean with alcohol and a Q tip B Inspect the bulkhead connector for chips cracks or other flaws that may compromise the seal C Inspect the inline connector for cuts nicks breaks or other problems that may compromise the seal Replace severely corroded or otherwise damaged connectors contact SBE for instructions or a Return Authorization Number RMA number Corroded pins on bulkhead connectors Connector on right has a missing pin 3 Using a tube of 100 silicone grease Dow DC 4 or equivalent squeeze approximately half the size of a pea onto the end of your finger CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors 4 Apply a light even coating of grease to the molded ridge around the base of the bulkhead connector The ridge looks like an o ring molded into the bulkhead connector base and fits into the groove of the mating inline con
120. 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 temperature Sea Bird instruments are constructed to minimize this by thermally decoupling the sensor from the body of the instrument However there is still some residual effect allowing the MicroCAT to equilibrate before starting will provide the most accurate calibration correction 1 Place the MicroCAT in the orientation it will have when deployed 2 In SEATERM A Setthe pressure offset to 0 0 POFFSET 0 B Send TP to measure the MicroCAT pressure 100 times and transmit converted data decibars 3 Compare the MicroCAT output to the reading from a good barometer at the same elevation as the MicroCA T s pressure sensor Calculate offset barometer reading MicroCAT reading 4 Enter the calculated offset in the MicroCAT s EEPROM using POFFSET in SEATERM Offset Correction Example Pressure measured by a barometer is 14 65 psia Pressure displayed from MicroCAT is 2 5 dbars Convert barometer reading to dbars using the relationship 14 7 0 6894759 dbars Barometer reading 14 65 14 7 0 6894759 0 034 dbars Offset 0 034 2 5 2 466 Enter offset in MicroCAT For demanding applications or where the sensor s a
121. perature AO 0 TAIF F Tenpentur Al TA2 F F Temperature A2 TA3 F F Temperature A3 CALDATE S S Conductivity calibration date CG F F Conductivity G CH F F Conductivity H CI F F Conductivity I CJ F F Conductivity J WBOTC F F Conductivity wbotc CTCOR F F Conductivity ctcor CPCOR F F Conductivity cpcor PCALDATE S S Pressure calibration date PA0 F F Pressure 0 PA1 F F Pressure Al PA2 F F Pressure A2 0 F Pressure 0 PTCA1 F F Pressure ptcal PTCA2 F F Pressure ptca2 0 F Pressure ptcb0 PTCB1 F F Pressure ptcb1 PTCB2 F F Pressure ptcb2 POFFSET F F Pressure offset RCALDATE S S Real time clock calibration date RTCA0 F F Real time clock 0 1 F Real time clock Al RTCA2 F F Real time clock A2 32 Section 4 Deploying and Operating MicroCAT Data Output Formats Notes for FORMAT 1 or 2 t temperature C ITS 90 c conductivity S m p pressure decibars included only if optional pressure sensor installed S salinity psu sent only if OUTPUTSAL Y v sound velocity m sec sent only if OUTPUTSV Y dd mmm yyyy day month Jan Feb Mar etc year mm dd yyyy month day year hh mm ss hour minute second Note that time is the time at the start of the sample e There is a comma but no space between temperature and conductivity All other data is separated with a comma and space e Date and time are included with autonomous sampling d
122. pin Connector Pin Signal Pin Signal 1 Common 1 Common 2 RS 232 data receive 2 RS 232 data receive 3 RS 232 data transmit 3 RS 232 data transmit 4 9 24 VDC optional external power 11 27 Section 2 Description of MicroCAT Sample Timing Notes e f date and time are stored with the data time is the time at the start of the sample Acquisition time shown does not include time to transmit real time data which is dependent on cable length and baud rate Sample timing is dependent on several factors including e Sampling mode autonomous polled or serial line sync e Inclusion of optional pressure sensor in MicroCAT e Number of measurements taken per sample NAVG Autonomous Sampling Power on time for each sample while logging e With pressure 1 55 seconds NAVG 1 26 seconds Without pressure 1 44 seconds 0 86 seconds The MicroCAT goes into quiescent sleep state for at least 2 seconds between each sample If NAVG is large the time required to sample plus the quiescent time may be more than the interval between samples INTERVAL the MicroCAT will then internally set the sampling rate to INTERVAL plus the actual required sampling time Example 1 INTERVAL 10 NAVG 2 MicroCAT has no pressure sensor Sampling time 1 44 seconds 0 86 seconds 1 44 2 0 86 3 16 seconds 3 16 seconds 2 seconds for quiescent state 5 16 seconds lt 10 second sample interval OK
123. pressed air which typically contains oil vapor Replace the protective plugs in the anti foulant device cups 42 58 Section 5 Routine Maintenance and Calibration Acid Cleaning visible deposits or marine growth on inside of cell Do not clean with acid more than once per week Acid Concentration Handling and Disposal The cleaning procedure uses approximately 50 100 cc of acid Sea Bird recommends using a 20 concentration of HCl However acid the range of 10 to full strength 38 is acceptable If starting with a strong concentration of that you want to dilute For each 100 cc of concentrated acid to get a 20 solution mix with this amount of water Water 20 1 100 10 conc 20 Always add acid to water never add water to acid Example concentrated solution 31 5 that you want to dilute to 20 31 5 20 1 100 10 31 5 20 66 6 cc of water So adding 100 cc of 31 5 to 66 6 cc of water provides 166 6 cc of the desired concentration For 100 cc of solution 100 cc 100 166 6 60 cc of 31 5 66 6 cc 100 166 6 40 cc of water Disposal Dilute the acid heavily or neutralize with bicarbonate of soda baking soda 1 Remove MicroCAT guard CAUTION Anti foulant device cups are attached A Remove the two screws attaching each anti foulant device cup to to the guard and connected with the guard
124. r resellers provide warranty support only to the original purchaser Warranty claims requests for information or other support and orders for post watranty repair and service by end users that did not purchase directly from Sea Bird or an authorized representative or reseller must be made through the original purchaser The intent and explanation of our warranty policy follows 1 2 Warranty repairs are only performed by Sea Bird Repairs or attempts to repair Sea Bird products performed by customers owners shall be called owner repairs Our products are designed to be maintained by competent owners Owner repairs of Sea Bird products will NOT void the warranty coverage as stated above simply as a consequence of their being performed Owners may make repairs of any part or assembly or replace defective parts or assemblies with Sea Bird manufactured spares or authorized substitutes without voiding warranty coverage of the entire product or parts thereof Defective parts or assemblies removed by the owner may be returned to Sea Bird for repair or replacement within the terms of the warranty without the necessity to return the entire instrument If the owner makes a successful repair the repaired part will continue to be covered under the original warranty as if it had never failed Sea Bird is not responsible for any costs incurred as a result of owner repairs or equipment downtime We reserve the right to refuse warranty coverag
125. re Sensor optional 44 Replacing Batteries 2 11 nennen enne 44 Replacing Anti Foulant Devices SBE 37 51 SM 45 Sensor Calibration OD Bene eie 46 18 19 Table of Contents er pia de A 48 Appendix I Functional 49 2 ib ere DRE ende dre De OR HERR HR HEURE 49 Sensor Interface ne nie RC He rU te 49 Real Time Clock e Rhe E ree et ER 49 Appendix II Electronics Disassembly Reassembly S0 Disassembly 54e eoe e e UP I date eg edits 50 Reassembly eate e o E ERR RENI D e te edens 50 Appendix Command Summary e eeeeeee eere eerte nete nae 51 Appendix IV AF24173 Anti Foulant Device 54 Appendix V Replacement Parts 58 60 20 Section 1 Introduction Section 1 Introduction This section includes contact information Quick Start procedure photos of a standard MicroCAT shipment and shipping precautions About this Manual This manual is to be used with the SBE 37 SM MicroCAT Conductivity and Temperature Recorder pressure optional with RS 232 interface It is organized to guide the user from installation through operation an
126. reading displayed when using Sea Bird s SEASOFT CTD acquisition display and post processing software is the corrected sea surface pressure and is used by SEASOFT to compute salinity density etc in accordance with the PSS equations 86 87 1978 PRACTICAL SALINITY SCALE EQUATIONS from IEEE Journal of Oceanic Engineering Vol OE 5 1 January 1980 page 14 CONCLUSIONS Using Newly generated data a fit has been made giving the following algorithm for the calculation of salinity from data of the form _ oS 7 C 35 15 0 T in C IPTS 68 P in decibars R PX A P A P 1 8 7 8 T BR B RT 73 52 7 A 2070X1075 3426 10 2 6370 107 9 4464x 107 3 989 10 15 8 4 215 107 B4 3 107 X 107 6 766097 X 107 2 00564 X107 1 104259 X 107 6 9698 x 1077 1 0031 X107 5 gt 6 15 Ys E 1 15 AUC do 00080 00005 k 0 0162 01692 5 0 0056 253851 b 0 0066 140941 b 0 0375 7 0261 by 0 0636 2 7081 5 0 0144 88 Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 9444444 Bellevue WA 98005 E mail seabird seabird com USA Web www seabird com APPLICATION NOTE 27Druck NOVEMBER 2003 Minimizing Strain Gauge Pressure Sensor Errors The following Sea Bird
127. regions at any season No adverse affects have been observed as a result of temporary dry storage particularly if the cell is rinsed with fresh water before storage 82 83 CELL CLEANING Routine Cleaning inside of cell not visibly dirty Fill the cell with a 1 solution of Triton X 100 and let soak for 30 minutes This is most easily done by using a length of 7 16 ID Tygon tubing to form a closed loop including the cell After the soak drain and flush with warm not hot fresh water for 1 minute Refill the cell with distilled or de ionized water until the next usage Cleaning Severely Fouled Cells visible deposits or marine growths on the inside of the cell Clamp the instrument so that the cell is vertical and attach a length of 7 16 Tygon tubing to the lower end of the cell Use masking or other tape to secure the open end of the Tygon about even with the top end of the cell Pour Muriatic Acid 37 into the open end of the Tygon until the cell is filled to near the top and let soak for 1 to 2 minutes only Avoid breathing the acid fumes Drain the acid from the cell and flush for 5 minutes with warm not hot fresh water Also rinse the exterior of the instrument to remove any spilled acid from the surface Then fill the cell with 1 Triton solution let stand for 5 minutes and flush with warm fresh water for 1 minute Refill with distilled or de ionized water until the next usage If this process does not remo
128. rs When to replace desiccant Storage and handling of desiccant Regeneration drying of desiccant Material Safety Data Sheet MSDS for desiccant When to Replace Desiccant Bags Before delivery of the instrument a desiccant package is placed in the housing and the electronics chamber is filled with dry Argon These measures help prevent condensation To ensure proper functioning 1 Install a new desiccant bag each time you open the housing and expose the electronics 2 Ifpossible dry gas backfill each time you open the housing and expose the electronics If you cannot wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the chamber What do we mean by expose the electronics e For most battery powered Sea Bird instruments such as SBE 16 16 16plus IM 17plus 19 19plus 25 37 5 37 SMP 37 1 37 IMP 44 PN 90208 Auto Fire Module AFM there is a bulkhead between the battery and electronics compartments Battery replacement does not affect desiccation of the electronics as the batteries are removed without removing the electronics and no significant gas exchange is possible through the bulkhead Therefore opening the battery compartment to replace the batteries does not expose the electronics you do not need to install a new desiccant bag in the electronics compartment each time you open the battery compartment For these instruments install a new desiccant bag if you open the
129. ry to the user or third persons The material described herein is sold only pursuant to United Desiccants Terms and Conditions of Sale including those limiting warranties and remedies contained therein It is the responsibility of the user to determine whether any use of the data and information is in accordance with applicable federal state or local laws and regulations REVISION RECORD AUTH MESEI o SUBCONN STANDARD IMPULSE CONNECTOR QPTONS CONNECTOR OPIIONS SBE 37SM ENDCAP FOR MODULAR MICROCAT DATA COMMON GUIDE PIN DATA COMMON TRANSMIT TO COMPUTER TRANSMIT TO COMPUTER RECEIVE FROM COMPUTER RECEIVE FROM COMPUTER SBE 37SM ENDCAP FOR POTTED MICROCAT mes SFA ELECTRONICS INC FRACTIONAL SCALE DECIMAL SM EXTERNAL i al WIRING INTERNAL POWER RS 232 DATE DWG NO REV pare REVISION RECORD or ck 9 11 01 A CORRECTED CONNECTOR LRG IMPULSE XSG 3BCL HP SS 1 2 20 17653 3 INCHES SCALE ENLARGED FOR CLARITY SEA BIRD ELECTRONICS INC SCALE DRAWN BY CEG N A 1 1 APPROVED BY SBE 37 3 PIN DATA 1 O MOLEX WIRING DWG NO 40889 WARRANTY POLICY 2003 5 LIMITED WARRANTY NEW PRODUCTS For a period of five years after the date of original shipment from our factory products manufactured by Sea Bird are warranted to funct
130. s year Standard Internal Batteries Nominal 7 2 Ampere hour pack consisting of six 9 volt lithium batteries Provides sufficient capacity for more than 175 000 samples When removed from MicroCAT and battery pack and batteries packed separately batteries can be shipped without hazardous material restrictions External Input 40 ma at 9 24 VDC Power to avoid draining the internal batteries use an external optional voltage greater than 10 VDC Quiescent Current 10 microamps P Sampling Current 25 milliamps ower Requirements Acquisition Time 1 3 seconds per sample depending on sampling mode and inclusion of pressure sensor for 1 measurement per sample NAVG 1 Housing Titanium pressure case rated at 7000 meters 23 000 feet Weight without In water 2 3 kg 5 1 16 pressure In air 3 8 kg 8 3 Ibs sensor 10 26 Dimensions in millimeters inches Section 2 Description of MicroCAT Dimensions Pressure port 67 3 2 65 4 05 62 2 2 45 Diameter Guide Connector ai Standard Wire Mounting 6 63 0 261 Diameter 4 places 419 1 16 50 Alternate Flat Surface Clamp and Guide Mounting Brackets End Cap Connector Optional Optional Standard Wet Pluggable Optional Wet Pluggable XSG 3 BCL HP SS MCBH 3MTI XSG 4 BCL HP SS MCBH AMTI 5 04 10 19 B H Y e 2 4 D ES S 2 3 pin Connector Optional 4
131. sample time 4 bytes per sample and optional pressure 2 bytes per sample memory 62 2 2 45 capacity is in excess of 185 000 samples The MicroCAT 405 amar is powered by a 7 2 Ampere Hour nominal battery pack consisting of six 9 volt lithium batteries which when removed from the MicroCAT can be shipped without hazardous material restrictions The pack provides sufficient internal battery capacity for more than 175 000 samples SPECIFICATIONS 0 261 6639 2 Measurement Range 22 20 Pacas Conductivity 0 7 S m 0 70 mS cm Dimensions in millimeters 419 1 Temperature 5 to 35 C inches 16 50 Optional Pressure 20 100 350 1000 2000 3500 7000 m Expressed in meters of deployment depth capability Initial Accuracy Guide Conductivity 0 0003 S m 0 003 mS cm Temperature 0 002 C Optional Pressure 0 1 of full scale range 19 0 Typical Stability month 0 75 Conductivity 0 0003 S m 0 003 mS cm Temperature 0 0002 C Optional Pressure 0 004 of full scale range Resolution Conductivity 0 00001 S m 0 0001 mS cm Temperature 0 0001 C Optional Pressure 0 002 of full scale range Standard Wire Mounting Alternate Flat Surface Clock Accuracy 13 seconds month Clamp and Guide Mounting Brackets Quiescent Current 10 microamps Optional Optional Standard Wet Pluggable Optional Wet Pluggable Sampling Current 25 milliamps XSG 3 BCL HP SS MCBH 3MTI XSG4 BCLHP SS 4 for s
132. sc key 18 pressed output raw data Measure conductivity 100 times or until Esc key 18 pressed output raw data Measure pressure 100 times or until Esc key is pressed output raw data Measure real time clock frequency 30 times or until Esc key 18 pressed output data Section 4 Deploying and Operating Calibration Coefficients Commands DC Display calibration coefficients Notes Equivalent to Coefficients on Toolbar e Dates shown are when calibrations were performed Calibration coefficients are Example Display coefficients for MicroCAT that does not have a initially factory set and should pressure sensor user input in bold agree with Calibration S DC Certificates shipped zi with MicroCAT SBE37 SM V 2 5 2165 See individual Coefficient temperature 19 03 Commands below for definitions 9 420702 05 of the data in the example TAL 2 937924 04 2 3 739471 06 1 909551 07 conductivity 19 03 1 036689e 00 H 1 444342e 01 I 3 112137 04 3 005941 05 9 570001 08 CTCOR 3 250000 06 WBOTC 1 968100e 05 LEC 11 03 9 999782e 01 1 1 749351 06 2 3 497835e 08 The individual Coefficient Commands listed below are used to modify a particular coefficient or date TCALDATE S S Temperature calibration date Note 0 F Tem
133. ssure the new length is 1 1 5 and the new radius is r 1 s If R is the cell resistance under pressure R 2 pl 1 5 1 5 2 pl nr 1 5 Ro 1 5 Since conductivity is 1 C Co 1 s and Co C 1 5 C 1 9 57 105 p where is conductivity at 0 pressure and C is the conductivity measured at pressure A less rigorous determination may be made using the bulk modulus of the material For small displacements in a cube AV V 3Al 1 3p 1 20 E or AV V p K where AV V is the change in volume per volume or volume strain and is the bulk modulus is related to E and o by E 3 1 20 In this case Al 1 p 3K Sea Bird Electronics Inc 1808 136th Place NE lt Bellevue WA 98005 USA Phone 425 643 9866 Fax 425 643 9954 E mail seabird seabird com Web www seabird com APPLICATION NOTE NO 14 January 1989 1978 PRACTICAL SALINITY SCALE Should you not be already familiar with it we would like to call your attention to the January 1980 issue of the IEEE Journal of Oceanic Engineering which is dedicated to presenting the results of a multi national effort to obtain a uniform repeatable Practical Salinity Scale based upon electrical conductivity measurements This work has been almost universally accepted by researchers and all instruments delivered by Sea Bird since February 1982 have been supplied with calibration data based upon the new stan
134. tandard RS 232 19 19 Acquisition Time 1 3 seconds sample i i e zo for 1 measurement sample S e dependent on sampling mode 3 Optional 4 pin Connector and inclusion of pressure sensor 227 2 Pin Signal Pin Signal 1 Common 1 Common Optional External 2 RS 232 data receive 2 RS 232 data receive Input Power 40 ma at 9 24 VDC 3 RS 232 data transmit 3 RS 232 data transmit 4 9 24 VDC optional external power Housing Titanium Depth Capability 7000 m 23 000 feet Weight in air 3 8 kg 8 3 165 in water 2 3 kg 5 1 Ibs 11 03 ES Sea Bird Electronics Inc E mail seabird seabird com 1808 136th Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Website http www seabird com Fax 425 643 9954 81 APPLICATION NOTES Appnote 2DConductivity eese 1 Appnote 10 3 Appnote 141978 Practical Salinity 5 Appnote 27DMinimizing Strain Gauge Errors 7 Appnote 42ITS 90 Temperature Scale 11 Appnote 5 Connector Carte aed etre he re eter teen 12 Appnote 68USB 15 Appnote 69Pressure to Depth 1 16 Appnote 71Desiccant Use and Regeneration 17 Sea Bird Electronics
135. te time 33 49 Section 4 Deploying and Operating Setup for Deployment Notes If the battery pack has been removed the date and time must be reset Always set both date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set for with MMDDYY or DDMMYY Install new batteries or ensure the existing battery pack has enough capacity to cover the intended deployment See Section 5 Routine Maintenance and Calibration for details on installing new batteries Program the MicroCAT for the intended deployment see Section 3 Preparing MicroCAT for Deployment for connection information see information in this section on commands and sampling modes A Ensure all data has been uploaded and then set SAMPLENUM 0 to make the entire memory available for recording If SAMPLENUM is not reset to 0 data will be stored after the last recorded sample B Setthe date and then time C Establish the setup and logging parameters D Use one of the following command sequences to initiate logging STARTNOW to start logging now taking a sample consisting of NAVG measurements every INTERVAL seconds STARTMMDDYY STARTHHMMSS and STARTLATER to start logging at the specified date and time taking a sample consisting of NAVG measurements every INTERV
136. te that the baud rate is documented on the front cover of this manual e Check cabling between the computer and MicroCAT 19 Section 3 Preparing MicroCAT for Deployment 6 Display MicroCAT status information by clicking Status on the Toolbar The display looks like this SBE37 SM V 2 5 SERIAL 2165 20 Nov 2003 08 49 08 logging not started sample interval 30 seconds e restore control to the computer if samplenumber 52 free 190598 an illegal command is sent do not transmit real time data conserve battery energy if do not output salinity with each sample too much time elapses do not output sound velocity with each sample between commands store time with each sample If the system does not appear to number of samples to average 4 respond click Connect on the serial sync mode disabled Toolbar to reestablish wait time after serial sync sampling 120 seconds communications temperature 7 54 deg C Note The MicroCAT has a 2 minute timeout algorithm designed to 7 Command the MicroCAT to take a sample by typing TS and pressing the Enter key The display looks like this if optional pressure sensor installed FORMAT 1 and not outputting salinity or sound velocity 23 7658 0 00019 0 062 20 Nov 2003 08 49 10 where 23 7658 temperature in degrees Celsius 0 00019 conductivity in S m 0 062 pressure in decibars 20 Nov 2003 date 08 49 10 time These numbers should be reasonable i e room temperatur
137. this source are small Offset errors can be estimated for the conditions of your profile and eliminated when post processing the data in SBE Data Processing by the following procedure 1 Immediately before beginning the profile take a pre cast in air pressure reading 2 Immediately after ending the profile take a post cast in air pressure reading with the instrument at the same elevation and orientation This reading reflects the change in the instrument temperature as a result of being submerged in the water during the profile 3 Calculate the average of the pre and post cast readings Enter the negative of the average value in decibars as the offset in the con file 91 Hysteresis Errors Hysteresis is the term used to describe the failure of pressure sensors to repeat previous readings after exposure to other typically higher pressures 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 Power Turn On Transient Druck pressure sensors exhibit virtually no power turn on transient The plot below for a 3500 meter pressure sensor in an SBE 19plus SEACAT Profiler is representative of the power turn on transient for all pressure sensor ranges 19p 4492 3 5k cnv 0 20 0 15 0 10 0 05 ce ce
138. tion circuits to prevent exhaustion of the batteries To re establish control wale up click Connect on the Toolbar or press the Enter key The system responds with the S gt prompt Command Descriptions This section describes commands and provides sample outputs See Appendix III Command Summary for a summarized command list When entering commands e Input commands to the MicroCAT in upper or lower case letters and register commands by pressing the Enter key MicroCAT sends CMD if an invalid command is entered e Ifthe system does not return an S prompt after executing a command press the Enter key to get the S gt prompt e Ifanew command is not received within two minutes after the completion of a command the MicroCAT returns to the quiescent sleep state e Ifin quiescent state re establish communications by clicking Connect the Toolbar or pressing the Enter key to get an S prompt 25 Section 4 Deploying and Operating MicroCAT Status Command DS Display operating status and If the battery voltage is below setup parameters 6 15 volts the following displays in response to DS Equivalent to Status on Toolbar WARNING LOW BATTERY VOLTAGE Replace the List below includes where applicable batteries before continuing command used to modify parameter e firmware version serial number date and time MMDDYY or DDMMYY and HHMMSS e logging status
139. tional Pesticide Telecommunications Network NPTN at 1 800 858 7378 Net Contents Two Anti Foulant Devices 7 14 g Sea Bird Electronics Inc EPA Registration No 74489 1 1808 136 Place Northeast EPA Establishment No 74489 W A 1 Bellevue WA 98005 55 71 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 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 Elimi
140. tteries from the battery pack assembly 3 Pack the batteries separately to prevent accidental shorting of the battery contacts 22 23 Section 2 Description of MicroCAT Section 2 Description of MicroCAT This section describes the functions and features of the SBE 37 SM MicroCAT including specifications and dimensions System Description The SBE 37 SM MicroCAT is a high accuracy conductivity and temperature recorder pressure optional with internal battery and non volatile memory and a standard RS 232 serial interface Designed for moorings and other long duration fixed site deployments MicroCATs have non corroding titanium housings rated for operation to 7000 meters 23 000 feet or pressure sensor full scale range Communication with the MicroCAT is over an internal 3 wire RS 232C link Over 50 different commands can be sent to the MicroCAT to provide status display data acquisition setup data retrieval and diagnostic tests User selectable operating modes include Autonomous sampling At pre programmed intervals the MicroCAT wakes up samples stores data in its FLASH memory and powers off If desired real time data can also be transmitted sampling On command the MicroCAT takes one sample and transmits the data Polled sampling is useful for integrating the MicroCAT with satellite radio or wire telemetry equipment e Serial line sync The MicroCAT wakes up samples tra
141. ty If an owner s technician attempts a repair we assume his her qualifications have been deemed acceptable to the owner The equipment owner is free to use his her judgment about who is assigned to repair equipment and is also responsible for the outcome The decision about what repairs are attempted and by whom is entirely up to the owner Service Request Form To return your instrument for calibration or other service please take a few moments to provide us with the information we need so we can serve you better PLEASE 1 Geta Returned Material Authorization RMA number from Sea Bird phone 425 643 9866 fax 425 643 9954 or email seabird seabird com Reference the RMA number on this form on the outside shipping label for the equipment and in all correspondence related to this service request 2 Fill out 1 form for each type model of instrument 3 Include this form when shipping the instrument to Sea Bird for servicing 4 Fax us a copy of this form on the day you ship 425 643 9954 RETURNED MATERIAL AUTHORIZATION RMA NUMBER RMA Number CONTACT INFORMATION Your name Institution Organization Company Shipping Delivery address for packages Telephone Fax e mail SERVICE INFORMATION Date Shipped Sea Bird Model Number for example SBE 37 SM Quantity Serial Numbers Note Specify instrument serial numbers below if specific services are required for som
142. ure at the water surface rather than absolute or total pressure is treated as the reference pressure 0 dbar this is the value required by the UNESCO formulas for computation of salinity density and other derived variables Some oceanographers express pressure in Newtons meter Pascals the accepted SI unit A Pascal is a very small unit 1 psi 6894 757 Pascals so the mega Pascal MPa 10 Pascals is frequently substituted 1 MPa 100 dbar Since the pressure sensors used in Sea Bird instruments are absolute types their raw data inherently indicate atmospheric pressure about 14 7 psi when in air at sea level Sea Bird outputs pressure in one of the following ways e For CTDs that output raw data SBE 16plus 16plus IM 19plus 25 and 49 and are supported by SEASOFT s SEASAVE real time data acquisition and SBE Data Processing data processing software In SEASOFT user selects pressure output in psi not psia or dbar SEASOFT subtracts 14 7 psi from the raw absolute reading and outputs the remainder as psi or converts the remainder to dbar the SBE 50 User selects pressure output in psia including atmospheric pressure dbar Calculation of dbar is as described above Forallother instruments that can output converted data in engineering units SBE 16 16plus IM 19plus 37 39 and 49 Instrument subtracts 14 7 psi from the raw absolute reading and converts the remainder to dbar Note
143. ve the visible deposits mechanically clean the cell with a small 0 275 diameter soft bristled nylon bottle brush and 1 Triton solution NOTE Be extremely careful when cleaning because the platinum electrodes are thin and could be damaged if you use a brush that is too large or too stiff The electrodes must be replatinized after brush cleaning Our service department will clean and replatinize your cell for a nominal fee Triton X 100 a trade name of J T Baker Inc is a concentrated liquid non ionic detergent available at most chemical or scientific supply stores Other liquid detergents can probably also be used but scientific grades are preferable because of their known composition It is better to use a non ionic detergent since conductivity readings taken immediately after use are less likely to be affected by any residual detergent left in the cell Sea Bird Electronics Inc Phone 425 643 9866 1808 136th Place NE Fax 425 643 9954 Bellevue WA 98005 E mail seabird 9 seabird com USA Web www seabird com APPLICATION NOTE NO 10 Revised March 2001 COMPRESSIBILITY COMPENSATION OF SEA BIRD CONDUCTIVITY SENSORS There is growing recognition of the Sea Bird SBE 911 CTD system s suitability for ultra precise characterization of deep ocean water masses To achieve the accuracy of which the system is capable an accounting for the effect of hydrostatic loading pressure on the conductivity cell is necessary
144. vue Washington 98005 USA Phone 425 643 9866 FAX 425 643 9954 Website http www seabird com Email seabird seabird com SBE Pressure Test Certificate Test Date 1 7 2004 Description SBE 37 Microcat Job Number 34829 Customer Name UCLA SBE Sensor Information Pressure Sensor Information Model Number 37 Sensor Type Druck Serial Number 3438 Sensor Serial Number 3944 Sensor Rating 45 Pressure Test Protocol Low Pressure Test 45 PSI Held For 15 Minutes High Pressure Test 45 PSI Held For 15 Minutes Passed Test v Tested By PCC High pressure is generally equal to the maximum depth rating of the instrument Pressure Time typical Test Profile Residual Degrees 12 SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 425 643 9866 Fax 425 643 9954 Email seabird seabird com SENSOR SERIAL NUMBER 3438 CALIBRATION DATE 19 Mar 04 ITS 90 COEFFICIENTS a0 2 al 3 a2 4 a3 1 086015e 004 039569e 004 154062 006 963390 007 118 90 1 000 4 500 15 000 18 500 24 000 29 000 32 500 0 D Ov Ore 2 3 OUTPUT 797781 684150 439809 381894 307692 254334 223315 INSTRUMENT W INST TEMP ITS 90 1 0000 4 5000 15 0000 18 5000 24 0000 29 0000 32 5000 SBE 37 TEMPERATURE CALIBRATION DATA ITS 90 TEMPERATURE SCALE RESIDUAL ITS 90 0
145. wers down when the time out clock runs down Serial line sync mode remains enabled SYNCMODE Y In summary to disable serial line sync mode after executing the take sample command e SYNCWAIT 0 Put RS 232 line in space state greater then 3 volts for time equivalent to 25 characters e SYNCWAIT gt 0 gt Send 25 break characters or gt IfSYNCWAIT is greater than 5 seconds send SYNCMODE N after waiting at least 3 seconds after executing the take sample command 23 Section 4 Deploying and Operating Example Serial Line Sync user input in bold Wake up MicroCAT Set sample number to 0 to overwrite previous data in memory Set NAVG 4 to take 4 measurements per sample Set SYNCWAIT to 25 seconds and enable serial line sync mode Send power off command click Connect on Toolbar to wake up S gt SAMPLENUM 0 S gt NAVG 4 S gt SYNCWAIT 25 S gt SYNCMODE Y 5085 Take samples using serial line sync mode Set RS 232 RX line high 3 10 VDC for 1 1000 milliseconds MicroCAT takes 4 measurements stores averaged data in memory and outputs converted averaged data Do not send any characters MicroCAT powers down after 25 seconds Repeat this process at periodic intervals as desired When ready to upload all data to computer disable serial line sync mode and then upload data and power down Set RS 232 RX line high 3 10 VDC for 1 1000 milliseconds MicroCAT takes 4 measurements stores avera
146. wn above e Click Connect again e Check cabling between the computer and MicroCAT Verify the correct instrument was selected and the COM settings were entered correctly in the Configure menu 6 Ifsampling autonomously command the MicroCAT to stop data logging by pressing the Enter key and sending STOP 38 54 Section 4 Deploying and Operating MicroCAT Display MicroCAT status information by clicking Status on the Toolbar The display looks like this SBE37 SM V 2 5 SERIAL NO 2165 20 Nov 2003 08 49 08 not logging received stop command sample interval 30 seconds samplenumber 52 free 190598 do not transmit real time data do not output salinity with each sample do not output sound velocity with each sample store time with each sample number of samples to average 4 serial sync mode disabled wait time after serial sync sampling 120 seconds temperature 7 54 deg C Click Upload on the Toolbar to upload stored data SEATERM responds as follows A SEATERM sends the status DS command displays the response and writes the command and response to the upload file This provides you with information regarding the number of samples in memory B Ifyou selected By scan number range in the Configuration Options dialog box Configure menu a dialog box requests the range Enter the desired value s and click OK C SEATERM sends the calibration coefficients DC command displays the r
147. y cell with fresh water See Section 5 Routine Maintenance and Calibration for cell cleaning and storage Reinsert the protective plugs in the anti foulant device cups If the batteries are exhausted new batteries must be installed before the data can be extracted Stored data will not be lost as a result of exhaustion or removal of batteries but the current date and time will have to be re entered upon redeployment See Section 5 Routine Maintenance and Calibration for replacement of batteries If immediate redeployment is not required it is best to leave the MicroCAT with batteries in place and in a quiescent state QS so that date and time are retained Because the quiescent current required is only 10 microamps the batteries can be left in place without significant loss of capacity less than 2 loss per year 36 52 Section 4 Deploying and Operating MicroCAT Uploading Data Note Data may be uploaded during deployment or after recovery If 1 Double click on SeaTerm exe The display shows the main screen uploading after recovery connect 2 Inthe Configure menu select SBE 37 Click on the Upload Settings tab the I O cable as described in Power The dialog box looks like this and Communications Test in Section 3 Preparing SBE 37 Configuration Options x for Deployment Defines data upload type when using Upload button on Toolbar or Header Information Baud for uploadin

SBE 37-SM MicroCAT

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