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1. Power and Communications Test Locking sleeve Sa Dummy plug Test Setup Test power and communications by communicating with the SBE 35 through the Interface Box 1 By hand unscrew the locking sleeve from the SBE 35 s bulkhead connector If you must use a wrench or pliers be careful not to loosen the bulkhead connector instead of the locking sleeve 2 Remove the dummy plug from the SBE 35 s bulkhead connector by pulling the plug firmly away from the connector 3 Install the supplied I O cable on the SBE 35 aligning the raised bump on the side of the plug cable connector with the large pin pin ground on the SBE 35 4 Connect the I O cable to SBE 35 on the Interface Box 5 Connect RS 232 on the Interface Box to your computer s serial port using the supplied DB 9P DB 9S cable 6 Connect the Interface Box to a standard 3 prong grounded AC outlet using the supplied ULAEC approved power cord AC voltage between 85 270 VAC Turn on power to the Interface Box Section 3 Preparing for Deployment Test Note Proceed as follows See SEATERM s help files for 1 Double click on SeaTerm exe If this is the first time the program is used detailed information the setup dialog box may appear w SeaTerm Setup x The initialization file SeaT erm ini was not found in the Windows directory Please enter the following setup information IMPORTANT To complete setup review the configur
2. Our June 1995 calibration checks of SPRT S N 4747 used to calibrate the SBE 35 show it to be within 0 000050 C of ITS 90 We expect SPRT readings at 15 C to be within 0 000100 C of ITS 90 29 Section 5 Routine Maintenance and Calibration SBE 35 Linearization Calibration The SBE 35 obtains its linearization calibration in a bath used to calibrate the Sea Bird temperature transfer standards to our SPRTs The computer controlled highly insulated 50 liter volume bath is stirred and mixed to obtain temperature uniformity of better than 0 000250 C Calibrations are made at 11 points equally spaced from 1 5 to 32 5 C At each point the bath is allowed to equilibrate for one hour When the computer determines that bath stability and variance are acceptable a 600 second synchronous integration of data from all sensors is obtained and tested for conformance to high stability and variance criterion The 600 second integrations are repeated until all data pass the test the computer then moves the bath to the next temperature point Experiments indicate that the calibration transfer error from the SPRT to other sensors is within 0 000250 C The total accuracy of calibration is expected to be within 0 000500 C The results of the SBE 35 calibration are shown in Figure 1 Bath temperature is obtained from the SPRT S N 4747 The Steinhart Hart equation taken to fourth order fits the calibration data to within 0 000100 C Wh
3. Except from April to October when we are on summer time 1500 to 0000 Universal Time Section 1 Introduction Unpacking SBE 35 Shown below is a typical SBE 35 shipment SBE 35 to Interface Box cable Interface Box 25 pin to 9 pin adapter for use with computer lt a with DB 25 connector Interface Box to computer cable AC power cord for Interface Box SBE 35 Deep Ocean Standards Thermometer User Manual Software and Electronic Copies of Software Manuals on CD ROM Section 2 Description of SBE 35 Section 2 Description of SBE 35 This section describes the functions and features of the SBE 35 including specifications dimensions and connectors System Description Note Each sample consists of NCycles measurements 1 127 with the average of the measurements stored and or transmitted as applicable Real Time Operation 11plus 9plus CTD T Carousel 35 33 ee 19 19plus or 25 CTD 35 Autonomous Operation 9plus CTD 17plus one 35 19 19plus or 25 CTD AFM T Carousel 35 Notes e Help files provide detailed information on the use of SEATERM SEASAVE V7 and SBE Data Processing Separate software manuals on CD ROM contain detailed information on the setup and use of SEASAVE V7 and SBE Data Processing Sea Bird also has an older version of SEASAVE SEASAVE Win32 However all SEASAVE instructions in this manual are writte
4. D CalDate S S Temperature calibration date ate shown is when calibration TAO F F Temperature AO was performed TA1 F F Temperature A1 Calibration TA2 F F Temperature A2 coefficients are TA3 F F Temperature A3 initially factory TA4 F F Temperature A4 set and should agree with Slope F F Temperature slope Calibration Certificate Offset F F Temperature offset shipped with SBE 35 39 Appendix IV References Appendix IV References Steinhart J S and Hart S R 1968 Calibration Curves for Thermistors Deep Sea Research 15 p 497 Bennett A S 1972 The Calibration of Thermistors over the Temperature range 0 30 C Deep Sea Research 19 p 157 40 Appendix V Replacement Parts Appendix V Replacement Parts Part reer souk Quantity in Number Part Application Description SBE 35 23929C Aluminum temperature Screws to end cap to protect 1 sensor guard temperature sensor 90248 Interface Box For lab use with SBE 35 1 171887 DB 9P to DB 9S I O Connect Interface Box 1 cable 3 0 m 10 ft long to computer 171888 25 pin DB 25S to 9 pin For use with computer with DB 9P cable adapter DB 25 connector 17015 AC power cable For Interface Box 1 6 pin AG 206 to 4 pin 80555 MS3106A 14S 2P cable Connect SBE 35 to Interface Box 1 2 4 m 8 ft long 170471 6 Pin AG 206 dummy For SBE 35 connector 1 plug with locking
5. COMM Port COM 1 through COM 10 as applicable Baud Rate 300 Data Bits 8 Parity None Mode RS 232 Full Duplex Click OK to save the settings 4 Click Connect on the Toolbar The display looks like this S gt This shows that correct communications between the computer and the SBE 35 has been established If the system does not respond as shown above e Click Connect again e Verify the correct instrument was selected in the Configure menu and the COM setting was entered correctly in the Configuration Options dialog box Note that the baud rate s factory setting is documented on the front cover of this manual e Check cabling between the computer Interface Box and SBE 35 12 Section 3 Preparing for Deployment Note See Data Output Formats for detailed descriptions of each output parameter aE Display SBE 35 status information by clicking Status on the Toolbar The display looks like this SBE 35 V 2 0 SERIAL NO 0013 07 Nov 2004 08 49 08 number of measurement cycles to average 8 number of data points stored in memory 2 bottle confirm interface SBE 91llplus Command the SBE 35 to take a sample by typing TS and pressing the Enter key The display looks like this 197 20 1047481 289795 4 15 35 29 289955 4 22 654745 where e 197 20 average of raw reference zero readings taken during a measurement e 1047481 average of raw reference resistor full scale readings taken during
6. Carefully fit the end cap and electronics into the housing and rethread 1 Install a new desiccant bag each the end cap into place Use a wrench on the hex flats to ensure the time you open the housing If a end cap is tightly secured new bag is not available see C Carefully fit the sensor guard over the sensor Tighten the sensor Application Note 71 Desiccant guard Do not overtighten the sensor guard and do not use a Use and Regeneration drying wrench or pliers If possible dry gas backfill each time you open the housing If you 2 cannot wait at least 24 hours before redeploying to allow the desiccant to remove any moisture from the housing Check the instrument setup using DS see Section 3 Preparing for Deployment and if necessary re enter the desired parameters 38 Appendix Ill Command Summar Appendix Ill Command Summary Note See Command Descriptions in Section 3 Preparing for Deployment for detailed information and examples Note Use Upload on the Toolbar or Upload Data in the Data menu to write SBE 35 setup calibration coefficients and a user input header along with uploaded data to a asc file CATEGORY COMMAND DESCRIPTION Status DS Display setup parameters MMDDYY Set real time clock month day year mmddyy Must follow with HHMMSS DDMMYY Set real time clock day month year ddmm Must follow with H
7. before beginning upload S gt DD1 16 Upload scans 1 through 16 S gt DD1 1 Upload scan 1 S gt DD Upload all scans in memory 16 Section 3 Preparing for Deployment Testing Commands RTCTest EETest Test battery backed static RAM in real time clock module Test resets date and time to default 01 Jan 1980 00 00 00 but does not reset other setup parameters or destroy sampling data in memory SBE 35 requires you to enter command twice to provide verification before it proceeds Test EEPROM memory Allow 30 seconds for test Test destroys all sampling data and setup parameters calibration coefficients NCycles etc stored in EEPROM SBE 35 requires you to enter command twice to provide verification before it proceeds Calibration Coefficients Commands Notes e Date shown is when calibration was performed Calibration coefficients are initially factory set and should agree with Calibration Certificate shipped with SBE 35 e See individual Coefficient Commands below for definitions of the data in the example Note F floating point number S string with no spaces DC Display calibration coefficients Equivalent to Coefficients on Toolbar A0 Al A2 AS A4 SLOP OFFSE V 2 0 Example Display coefficients for SBE 35 user input in bold S gt DC SBE35 08 apr 96 5 156252707e 03 1 430180396e 03 2 092145355e 04 1 156
8. 8163Q S N 4747 4749 maintained and used exclusively in the temperature range 5 to 40 C SPRT resistance ratios are measured with an Automated Systems Laboratory ASL F18 resistance bridge using methodology of the US National Institute of Standards and Technology NIST Primary Temperature Standards Laboratory The SPRTs are calibrated and certified against a group of four Triple Point of Water cells Jarrett S N 461 716 1682 1683 and one Gallium Melt Point cell Isotech S N 114 A second Gallium Melt Point cell is also periodically used for intercomparison Following NIST methodology the TPW cell mantles are prepared and stress annealed for two weeks before use The cells are maintained in a temperature bath held at 0 008 C where they are used for several months before the mantles must be melted and rebuilt The thermal transfer fluid used in the cell thermometer wells and maintenance bath is de ionized water with 2 isopropyl alcohol and a brass bushing 5 cm length is used to couple the SPRT to the TPW thermometer well wall The Gallium Melt Point cells are cycled through a 100 melt in a commercial Isotech gallium furnace De ionized water and a brass bushing are used as the thermal transfer media in the thermometer well The inner melt of the gallium ingot is initiated by injecting 58 C de ionized water into the thermometer well thermometers are pre heated to above 30 C before insertion to insure the inner melt is preserved
9. C ITS 90 Example SBE 35 at room temperature user input in bold S gt RUN 197 64 1047488 269139 8 13 37 52 269275 4 24 556287 191 77 1047493 268895 0 12 35 57 269030 4 24 579808 197 12 1047501 268859 8 14 27 48 268988 9 24 583787 19 Section 4 Deploying and Operating SBE 35 Section 4 Deploying and Operating SBE 35 Note Operation of an autonomous water sampler system i e without conducting cable with the SBE 35 is not detailed in this manual Operation with CTD Deck Unit Unscrew and remove sensor guard to a remove tip bushing then replace guard Sensor probe tip Tip bushing unscrew to remove for deployment at sea Note For details on creation of a ros file see Comparing SBE 35 Data to CTD Data below This section provides instructions for operating the SBE 35 e With a CTD Deck Unit and SBE 32 Carousel Water Sampler deployment recovery uploading data from the SBE 35 and comparing SBE 35 data to CTD data are discussed e With a fixed point cell in the lab and SBE 32 Carousel Water Sampler When used at sea remove the tip bushing from the SBE 35 before deployment Deployment with the tip bushing slows the SBE 35 s response to changing temperature The SBE 35 can act as a stand alone substitute for a reversing thermometer recording temperature with each bottle closing The SBE 35 is mounted in a secure area on the water sam
10. Longitude Prompt tar line 6 FO Prormptfor line 7 Ee Prompt for line 8 eee Prompt for line 9 Cr Promptforline 10 O Prompttor line 11 o O Prompt for line 12 Oo i j The entries are free form 0 to 12 lines long This dialog box establishes e the header prompts that appear for the user to fill in when uploading data if Prompt for header information was selected in the Configuration Options dialog box Step 5 e the header included with the uploaded data if Include default header form in upload file was selected in the Configuration Options dialog box Step 5 Enter the desired header header prompts Click OK 7 Click Upload on the Toolbar to upload stored data from the SBE 35 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 setup and 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 response and writes the command and response to the upload file This provides the calibration coefficients D If you selected Prompt for header information in the Note Configuration Options dialog box Configure menu a dialog To prepare for re
11. number range SEATERM prompts for beginning and ending scan sample numbers and uploads all data within range into one file number range Cancel Default Help OK Make the selection for Upload Settings 5 Click on the Header Information tab The dialog box looks like this SBE 35 Configuration Options COM Settings Upload Settings Defines header information included with uploaded data e Prompt for header information Each time data is uploaded user is prompted to fill out user defined header form Include default header form in upload file User defined default header form included in upload file User is not prompted to add any information when data is uploaded Don t include default header form in upload file Header information not included in upload file Header Information Prompt for header information Include default header form in the upload file C Don t include default header form in the upload file Cancel Default Help OK Select the desired option Click OK to save the settings 24 Section 4 Deploying and Operating SBE 35 6 In the Configure menu select Header Form to customize the header The dialog box looks like this default prompts are shown a Edit Header Prompts Oy x Prompt for line 1 Sips S Prompt far line 2 Cruise Prompt tor line 3 Station Promptiorline 4 flsiude Prompt for line 5
12. sleeve 17043 Plastic locking sleeve For cable dummy plug 1 From SBE 35RT to SBE 32 6 pin AG 206 to Carousel Water Sampler and 171220 6 pin AG 206 to e SBE 9plus CTD 6 pin AG 206 Y cable e AFM or e SBE 17plus V2 SEARAM 6 pin AG 206 to From SBE 35 to SBE 32 171221 6 pin AG 206 cabl Carousel Water Sampler for use A 8 fD on a with SBE 19 19plus or 25 CTD 8 and SBE 33 Carousel Deck Unit 6 pin MCIL 6FS wet pluggable connector to 801534 4 pin MS3106A 14S 2P Connect SBE 35 to Interface Box 1 cable 2 4 m 8 ft long 6 pin MCDC 6 F wet 171498 1 pluggable dummy plug For SBE 35 connector 1 with locking sleeve Plastic locking sleeve for 171192 wet pluggable connector For cable dummy plug 1 6 pin MCIL 6FS to From SBE 35RT to SBE 32 l 6 pin MCIL 6FS to Carousel Water Sampler and 171995 6 pin MCIL 6FS e SBE 9plus CTD wet pluggable Y cable AFM or e SBE 17plus V2 SEARAM 6 pin MCIL 6FS to From SBE 35 to SBE 32 171996 6 pin MCIL 6FS Carousel Water Sampler for use wet pluggable cable with SBE 19 19plus or 25 CTD 2 4 m 8 ft long and SBE 33 Carousel Deck Unit 23041 Anode ring For corrosion resistance I connector end of housing 30126 T x 3 8 Hathead Secure anode ring to housing 4 stainless steel screws 30806 LS021 L seal O ring placed in end cap groove 1 Gives SBE 35 length diameter 50175 Fixed point cell bushing and panei Characteristic Mat 1 mimics standards grade platinum resistance thermome
13. temperature noise from the sensor The following RMS noise values are typical for an SBE 35 in a Triple Point of Water cell NCyeles Standard Deviation C _88seconds_ 0 000029 35 2 seconds 0 000014 Temperature is computed using the Steinhart Hart polynomial for thermistors Steinhart and Hart 1968 Bennett 1972 as follows n output from SBE 35 1 0 too 273 15 a0 alln n a2In n a3ln n a4ln n t o slope t oo Offset C ITS 90 Carrying the polynomial to the fourth order captures the non linearity of the SBE 35 thermistor output to better than 0 0001 C See Figure 1 in Section 5 Routine Maintenance and Calibration 36 Appendix l Functional Description Real Time Clock A low power watch crystal is used as the real time clock frequency source Memory Data The SBE 35 stores up to 170 samples in EEPROM EEPROM memory is non volatile and data in the memory is not lost as a result of removal of external power Timekeeping Time is stored in the real time clock with a back up lithium battery Time is kept when external power is removed Settings Calibration coefficients and setup and operating parameters SampleNum NCycles etc are written to EEPROM and are non volatile These settings do not change if external power is removed 37 Appendix Il Electronics Disassembly Reassembl Appendix II Electronics Disassembly Reassembly Disassembl
14. x x 911plus SBE 35 used with SBE 9plus CTD SBE 1 1plus Deck Unit and SBE 32 Carousel Water Sampler x 32serial SBE 35 used with SBE 19 19plus or 25 CTD SBE 33 Carousel Deck Unit and SBE 32 Carousel Water Sampler SampleNum x x sample number for first sample when sampling begins After all previous data has been uploaded from SBE 35 set sample number to 0 before starting to sample again to make entire memory available for recording If SampleNum is not reset to 0 data will be stored after last recorded sample SBE 35 can store up to 170 samples 15 Section 3 Preparing for Deployment Notes e Data format varies depending on the sampling command See Data Output Formats after the command descriptions e To capture real time data from Cal Run or TS to a file do this before starting sampling A Click Capture on Toolbar B Enter desired file name in dialog box Capture status displays in status bar at bottom of screen Notes e To save data to a file click Capture on the Toolbar before entering DDb e See Data Output Formats after these Command Descriptions Use Upload on the Toolbar or Upload Data in the Data menu to write SBE 35 setup calibration coefficients and a user input header along with uploaded data to a asc file Sampling Commands The SBE 35 samples when commanded by the user Cal Run or TS or automatically upon receipt of a valid bottle fire confirmation se
15. 06682e 03 a2 2 157446016e 04 a3 1 191723910e 05 a4 2 520670077e 07 BATH TEMP INSTRUMENT INST TEMP RESIDUAL ITS 90 C OUTPUT n ITS 90 C ITS 90 C 1 432584 802788 41 1 432534 0 000050 1 072655 718708 32 1 072573 0 000082 4 568224 617253 29 4 568205 0 000019 8 166711 529182 82 8 166776 0 000065 11 596517 458145 25 11 596549 0 000032 15 156793 395526 94 15 156779 0 000014 18 660757 343166 34 18 660709 0 000048 22 156465 298608 23 22 156463 0 000002 25 719453 259824 40 25 719441 0 000012 29 132353 227964 82 29 132408 0 000055 32 668212 199568 37 32 668188 0 000024 Temperature ITS 90 1 a0 al 2n n a2 n n a3 n3 n a4 2n n 273 15 C Residual instrument temperature bath temperature calibration delta T 0 0020 m date Imdeg C SAMPLE pee ae 0 0010 RESIDUAL Degrees C 9 0000 q o g i _ _ _ 91 e 1 DOSS SE 0 0010 a 0 0020 l 5 0 5 10 15 20 25 30 35 TEMPERATURE Degrees C Sea Bird calibration certificate for SBE 35 S N 1 Coefficients are for the 29 Jun 95 calibration data Bath temperatures were measured with Sea Bird s SPRT S N 4747 calibrated 03 January 1995 and showing recent Triple Point of Water and Gallium Melt Point checks within 0 000050 of correct We expect transfer errors in the bath to be within 0 000250 C Overall calibration accuracy is expected to be wi
16. 15 41 bn 6 diff 21 val 284568 0 t90 23 134886 18 Section 3 Preparing for Deployment Real Time Data from Cal Command When the user sends Cal real time data is output in the following format Column Description 1 average of raw reference zero readings taken during a measurement 2 average of raw reference resistor full scale readings taken during a measurement 3 average of raw thermistor readings taken during a measurement 4 maximum minimum raw reference zero reading during a measurement provides a measure of the amount of variation during the measurement 5 maximum minimum raw reference resistor full scale reading during a measurement provides a measure of the amount of variation during the measurement 6 maximum minimum raw thermistor reading during a measurement provides a measure of the amount of variation during the measurement 7 average raw thermistor reading corrected for zero and full scale reference readings Example SBE 35 in a Triple Point of Water Cell user input in bold S gt CAL 197 21 1047557 752453 3 15 31 27 753130 0 197 87 1047563 752457 4 15 31 21 753129 0 197 64 1047565 752459 1 15 32 18 753129 5 Real Time Data from Run or TS Command When the user sends Run or TS real time data is output in the same format as for Cal with the addition of an eighth column for average corrected raw thermistor reading converted to engineering units
17. 278215e 05 2 446454055e 07 1 000000 0 000000 S ERIAL NO 0011 The individual Coefficient Commands listed below modify a particular coefficient or date CalDate S TAO F TA1 F TA2 F TA3 F TA4 F Slope F Offset F 17 S Temperature calibration date F Temperature AO F Temperature Al F Temperature A2 F Temperature A3 F Temperature A4 F Temperature calibration slope F Temperature calibration offset Section 3 Preparing for Deployment Data Output Formats Note For all data formats each line of output is followed by a carriage return and line feed Each sample consists of the following measurement scheme repeated NCycles times e Raw reference zero Raw A D reading of 16 samples with circuit ground switched in place of the thermistor e Raw reference full scale Raw A D reading of 16 samples with a hermetically sealed precision resistor switched in place of the thermistor e Raw thermistor Raw A D reading of 16 samples with the thermistor in the circuit For example if NCycles is 8 the total number of readings is 128 8 16 reference zero readings 128 reference full scale readings and 128 thermistor readings The reported values are the simple average of the 128 readings The maximum minimum values are the maximum value read during the 128 readings minus the minimum value read during the 128 readings The average raw thermistor value corrected for zero and full scale re
18. Data Output Formats for more details on how NCycles affects the measurement Note SampleNum 0 does not delete data it just resets the data pointer If you accidentally send this command before uploading recover data as follows 1 Set SampleNumea where a is your estimate of number of samples in memory Upload data If a is more than actual number of samples data for non existent samples will be bad random data Review uploaded data file carefully and delete any bad data If desired increase a and upload data again to see if there is additional valid data in memory MMDDYY mmddyy Set real time clock month day year Must be followed by HHMMSS to set time DDMMY Y ddmmyy Set real time clock day month year Must be followed by HHMMSS to set time HHMMSS hhmmss 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 or S gt DDMMYY 100104 S gt HHMMSS 120000 NCycles x x number of measurements to take and average per sample 1 127 Time required for each measurement is 1 1 seconds therefore total time for each sample is 1 1 seconds NCycles Averaged data is stored in EEPROM and or transmitted real time depending on sampling mode In a thermally quiet environment temperature noise standard deviation is 0 000029 sqrt 8 NCycles C Interface
19. Deployment with SBE 9plus CTD SBE 11plus Deck Unit and SBE 32 Carousel Water Sampler eeeeeeescessceeeeesecesecnseensecaeenee 21 Deployment with SBE 19 19plus or 25 CTD SBE 33 Deck Unit and SBE 32 Carousel Water Sampler ce ce eeceecesecesecesecsseceeceeeeseeeeeeeeeees 22 RECOVERY enne eeeh eea a aA E E EEE E E E teed 23 Uploading Data from SBE 35 enensnsesesesresesessereseseesereseeseeersessseeeeeersees 24 Comparing SBE 35 Data to CTD Dat eeeeceeeeeceeceeeeeceeneeseenees 26 Operation in Fixed Point Cells cc ceeesecsseecessecseeeecseeeeesecersecaeeeesaeeaeeseenees 27 Section 5 Routine Maintenance and Calibration ssssssssessessesessevers 28 Corrosion Precautions cecccsceesseeseeesceeeceseceseceseceaeceaecaeecaeeeaeeseecaeeeseeeneennees 28 Connector Mating and Maintenance eee cceseeseeeecseeeeceseeeeeseceeesecneeeeeeaeeees 28 Calibration sieren cass tuck ceeest side dade ca a A a ee a e aae 29 Calibration Introduction ccccccecseesceeceesceeeceeeceeceseceaeceaecaeecaeeeaeeeeeeeneees 29 Temperature Standards 0 0 eee eeeeeeesceeeceseceseceseceaecsaecseecseeeaeeeeeseneees 29 SBE 35 Linearization Calibration cccecceeseeeeeseeesceesceeeceeeeseenseeneeenes 30 SBE 35 Fixed Point Calibration Slope and Offset ecceeeseeeeeeee 30 GI OSSALY AAT A T O AEE TT 35 Appendix I Functional Description sssssssssssesssersessssessessesersessssesees 36 M as reme
20. HMMSS HHMMSS Set real time clock hour minute second hhmmss NCycles x x number of measurements to take and average per sample 1 127 x 911plus SBE 35 used with Setup SBE 9plus CTD SBE 11plus Deck Unit and intertace zr SBE 32 Carousel Water Sampler x 32serial SBE 35 used with SBE 19 19plus or 25 CTD SBE 33 Carousel Deck Unit and SBE 32 Carousel Water Sampler x sample number for first sample when sampling begins After all data has been SampleNum x uploaded set to 0 before starting to sample to make entire memory available for recording If not reset to 0 data stored after last sample Start sampling continuously now Cal outputting real time raw data Data not stored in EEPROM Start sampling continuously now outputting Sampling Run real time raw data as well as computed temperature C Data not stored in EEPROM TS Take one sample store in EEPROM and output real time Data Upload DDb e Upload data from sample b to e Test battery backed static RAM in real time RTCTest clock module Test resets date and time to default Testing Test EEPROM memory Allow 30 seconds for EETest test Test destroys all sampling data and setup parameters calibration coefficients etc stored in EEPROM Coefficients Display calibration coefficients all F floating point DC coefficients and date listed below are included number S string Use individual commands below to modify a with no spaces particular coefficient or date
21. SBE 35 Deep Ocean Standards Thermometer User s Manual Sea Bird Electronics Inc 1808 136 Place NE Bellevue Washington 98005 USA Telephone 425 643 9866 Fax 425 643 9954 Manual Version 009 03 30 07 E mail seabird seabird com Firmware Version 2 0a and later Website www seabird com SEASAVE V7 Version 7 10 and later Limited Liability Statement Extreme care should be exercised when using or servicing this equipment It should be used or serviced only by personnel with knowledge of and training in the use and maintenance of oceanographic electronic equipment SEA BIRD ELECTRONICS INC disclaims all product liability risks arising from the use or servicing of this system SEA BIRD ELECTRONICS INC has no way of controlling the use of this equipment or of choosing the personnel to operate it and therefore cannot take steps to comply with laws pertaining to product liability including laws which impose a duty to warn the user of any dangers involved in operating this equipment Therefore acceptance of this system by the customer shall be conclusively deemed to include a covenant by the customer to defend indemnify and hold SEA BIRD ELECTRONICS INC harmless from all product liability claims arising from the use or servicing of this system Table of Contents Table of Contents Section 1 Introd uction cscsccssssersessrsessessrsessessssessessssessessssessessssessssesseseee 4 About this Mantal osci hase ister aer
22. Set up the system and display windows B In the Real Time Data menu select Start Make the desired selections in the Start Real Time Data Acquisition dialog box and then click the Start button C Fire bottles as desired Each time it receives a bottle confirmation the SBE 35 takes a sample and stores the data in EEPROM If the next bottle is fired before the SBE 35 finishes sampling time required sample 1 1 NCycles 2 7 seconds the SBE 35 ignores the next bottle confirmation D When the cast is complete in the Real Time Data menu select Stop Turn off power to the SBE 1 1plus Deck Unit 21 Section 4 Deploying and Operating SBE 35 Deployment with SBE 19 19p us or 25 CTD SBE 33 Deck Unit and SBE 32 Carousel Water Sampler Note For details on wiring setup and operation of the entire system see the SBE 33 and the CTD manuals Only details relating to the use of the SBE 35 are covered here 1 Mount the SBE 35 without tip bushing with sensor guard in a secure area on the water sampler frame where the water flushes freely and there is minimal contamination from the passive thermal mass of the metal frame or active thermal dissipation from electronic instruments Connect the SBE 35 to the SBE 32 Carousel Water Sampler JB2 using the Sea Bird cable cable 171221 drawing 32209 for standard connector on the SBE 35 Connect the end labeled SBE 35 to the SBE 35 and the end labeled SBE 32 to th
23. Toolbar or pressing the Enter key to get an S gt prompt Status Command DS Display setup parameters Equivalent to Status on Toolbar List below includes where applicable command used to modify parameter e firmware version serial number date and time MMDDYY and HHMMSS e number of measurements to take and average per sample NCycles e number of samples in memory SampleNum e interface for use with SBE 32 Carousel Water Sampler Interface SBE 911 plus for use with SBE 9plus CTD SBE 1 1plus Deck Unit and SBE 32 Carousel Water Sampler or SBE 32 with serial interface for use with SBE 19 19plus or 25 CTD SBE 33 Deck Unit and SBE 32 Carousel Water Sampler Example Display status for SBE 35 user input in bold S gt DS SBE 35 V 2 0 SERIAL NO 0013 07 Nov 2004 08 49 08 MMDDYY and HHMMSS number of measurement cycles to average 8 NCycles number of data points stored in memory 2 SampleNum bottle confirm interface SBE 91llplus Interface 14 Section 3 Preparing for Deployment Setup Commands Notes DDMMYY and MMDDYY are equivalent Either can be used to set the date Always set date and then time If a new date is entered but not a new time the new date will not be saved If a new time is entered without first entering a new date the date will reset to the last date it was set for with MMDDYY or DDMMYY Note See
24. W cell the hydrostatic head is 0 000198 C thus true measured temperature in TPW cell t 0 010000 0 000198 0 009802 C and actual measured temperature from SBE 35 in TPW cell m 0 009626 C 30 Section 5 Routine Maintenance and Calibration Gallium Melt Point Defined temperature ITS 90 29 764600 C Hydrostatic head effect 0 01165 mdeg cm Atmospheric pressure effect 2 0uK millibar In our GaMP cell the hydrostatic head is 0 000272 C and the barometric pressure was approximately 1010 millibars thus true measured temperature in GaMP cell t a 29 764600 0 000272 0 000007 29 764335 C and actual measured temperature from SBE 35 in GaMP cell using a 60 minute average beginning 8 5 hours into the melt cycle m g 29 764336 C Calculation of Slope and Offset slope t t m m 29 764335 0 009802 29 764336 0 009626 0 999994 offset t slope m 0 009802 0 999994 0 009626 0 000176 Program the new slope and offset into the SBE 35 using the Slope and Offset commands 31 Section 5 Routine Maintenance and Calibration SEA BIRD ELECTRONICS INC 1808 136th Place N E Bellevue Washington 98005 USA Phone 206 643 9866 Fax 206 643 9954 Internet seabird seabird com SENSOR SERIAL NUMBER 1 TEMPERATURE CALIBRATION DATA CALIBRATION DATE 29 jun 95 ITS 90 TEMPERATURE SCALE SBE 35 COEFFICIENTS a0 5 353396734e 03 al 1 4869
25. a ditto vera E E tee 4 How to Contact Sea Birdir i e a A ES 4 Unpacking SBE 3S iea eurai ea et A a a a a awed 5 Section 2 Description of SBE 35 seseoseesesoessesceossesessossessossesossesoessesoossesessoeses 6 Systemi Desefpt onse Ree eee E a ee 6 SBE 35 Specifications cennin aia E sien A E E ER 7 Interface Box Specifications cscs eecsesscsseeecesecseeecseeeeceseeecsaecseesessesseeeaeeeeeas 7 Interface Box Connectors Switches and LEDS cccccecccccceececeesteeeeesseeeees 7 Dimensions and End Cap Connecto8 ou ccceecsesseeecneeeeceseeecesecatesecneeseenaeseeees 8 Section 3 Preparing for Deployment ssssssssssersesersessrsessessesessessesesees 9 Software Install athOniccssecssccc E hasaasectitestiarittadvebss E 9 Power and Communications Test c cceccesscesseeesceeeceeeceeeeesececeaeeeseenaeeeeeneeeae 9 Command Descriptions issi 0scsies caseeessssesepsoeseusestsesesesoustpepssonstougasdestesbapaseveoeens 14 Data Output Formats iis s3 5 5 dtake aint Sel ibid wltiiiy heehee 18 Data Uploaded from EEPROM cee eccesecesesecneeeeceseeeeaecaeeseeneeseeneeeees 18 Real Time Data from Cal Command cccesccesececeeeceeeeeseeeeeeeeeeeeeneeees 19 Real Time Data from Run or TS Command eeceeseeeseeceeeeeeeeeeereeeeees 19 Section 4 Deploying and Operating SBE 35 ccscssssssssscsssesserseeseeees 20 Operation with CTD Deck Unit and SBE 32 Carousel Water Samplet 20
26. a measurement e 289795 4 average of raw thermistor readings taken during a measurement e 15 maximum minimum raw reference zero reading during a measurement provides a measure of the amount of variation during the measurement e 35 maximum minimum raw reference resistor full scale reading during a measurement provides a measure of the amount of variation during the measurement e 29 maximum minimum raw thermistor reading during a measurement provides a measure of the amount of variation during the measurement e 289955 4 average raw thermistor reading corrected for zero and full scale reference readings e 22 654745 average corrected raw thermistor reading converted to engineering units C ITS 90 These numbers should be reasonable i e the thermistor should be reading room temperature The SBE 35 is ready for programming and deployment 13 Section 3 Preparing for Deployment 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 SBE 35 in upper or lower case letters and register commands by pressing the Enter key e The SBE 35 sends CMD if an invalid command is entered e Ifthe system does not return an S gt prompt after executing a command press the Enter key to get the S gt prompt e Establish communications by clicking Connect on the
27. acterize and capture the non linear resistance vs temperature response of the sensor Because it is important that fit equations reflect underlying physical mechanisms the Steinhart Hart equation is a good choice By including terms through fourth order this equation characterizes the SBE 35 output to an error less than 0 0001 C Figure 1 For SPRTs the basic non linear calibration equation has fixed coefficients that apply to all thermometers However thermistors require individualized coefficients to the Steinhart Hart equation because unlike pure SPRT platinum the thermistor material is an individualized mix of dopants The individualized SBE 35 calibrations are performed at Sea Bird in a low gradient temperature bath and against ITS 90 certified SPRTs maintained at Sea Bird s primary temperature metrology laboratory The calibration process is described below The second calibration step is frequent certification of the SBE 35 sensor by measurements in thermodynamic fixed point cells Triple Point of Water TPW and Gallium Melt Point GaMP cells are appropriate for the SBE 35 which is designed for ocean range temperatures 5 to 35 C Like SPRTs the slow time drift of the SBE 35 is adjusted by a slope and offset correction to the basic non linear calibration equation Temperature Standards The Sea Bird primary temperature standard consists of two Yellow Springs Instruments standards grade platinum resistance thermometers YSI
28. ailable commands for the instrument Note that the instrument must Peels hase etis be sa oa for it to respond to a command use eae on the Toolbar command which displays in the to wake up the instrument when using it with the Inter ace Box e Status bar Provides status information To display or hide the Status Command Data Echo Area and f updates the Status bar bar select View Status bar in the View menu parameter 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 10 Following are the Toolbar buttons applicable to the SBE 35 Section 3 Preparing for Deployment See Command Descriptions in this section 11 Toolbar Description Equivalent Button P Command Re establish communications with SBE 35 press Enter Connect P Computer responds with S gt prompt key Display instrument setup and status number of Status measurements to take and average per sample DS number of samples in memory etc Coefficients Display calibration coefficients DC Capture instrument responses on screen to file File has cap extension Press Capture again to Capture turn off capture Capture status displays in Status bar Upload data stored in SBE 35 s memory DDb e along with status calibration coefficient and use Upload to user input header information Uploaded file has include stat
29. alue in EEPROM Each stored value contains the time and bottle position in addition to the temperature data allowing comparison of the SBE 35 record with CTD and water bottle data Using one SBE 35 eliminates the need for reversing thermometers and provides higher accuracy temperature readings at lower cost Calibration coefficients stored in EEPROM allow the SBE 35 to transmit data in engineering units When configured in a real time system the SBE 35 can use the system modem channel for two way communications it is not necessary to change cable connections to communicate with and retrieve data from the SBE 35 Commands can be sent to the SBE 35 to provide status display data acquisition setup data retrieval and diagnostic tests The SBE 35 is supplied with a powerful Windows 2000 XP software package SEASOFT Win32 which includes e SEATERM terminal program for easy communication and data retrieval e SEASAVE V7 real time data acquisition and display e SBE Data Processing program for calculation and plotting of CTD parameters and derived variables Section 2 Description of SBE 35 SBE 35 Specifications Measurement Range 5 to 35 C Initial Accuracy 0 001 C Typical Stability per year 0 001 C Resolution 0 000025 C Sensor Calibration 1 5 to 32 5 C Up to 170 samples each an average Data Storage of NCycles measurements 1 127 Watch crystal type 9 16 VDC On applicati
30. ation setting for your instrument by selecting your instrument type from the Configure menu list Instrument Type Ea Mj COM Port fi x Select the instrument type SBE 35 and the computer COM port for communication with the SBE 35 Click OK 2 The main screen looks like this do SeaTerm Yersion 1 30 SeaTerm B gt File Configure Communications Utilities Data View Help Connect Toolbar Command Data Echo Area Capture Status bar to file status grayed out if not capturing Upload Computer spe ve comi gan y scan range Capturing Instrument Baud rate data bits e Use a menu to automatically generate a command e Use a Toolbar button to e Menus Contains tasks and frequently executed instrument automatically generate commands a command e Toolbar Contains buttons for frequently executed tasks and instrument commands All tasks and commands accessed through the Toolbar are also available in the Menus To display or hide the Note Toolbar select View Toolbar in the View menu Grayed out Toolbar Once the system is configured and buttons are not applicable connected Steps 3 and 4 below e Command Data Echo Area Echoes a command executed using a to update the Status bar Menu or Toolbar button as well as the instrument s response e on the Toolbar click Status or Additionally a command can be manually typed in this area from the e from the Utilities menu select av
31. ctor very slowly at least 1 turn This opens an o ring seal under the connector Look for signs of internal pressure hissing or water leak If internal pressure is detected let it bleed off slowly past the connector o ring Then you can safely remove the end cap 23 Section 4 Deploying and Operating SBE 35 Note Set up Upload Settings Header Information and or Header Form Steps 4 through 6 e The first time you upload data and e If you want to change upload or Uploading Data from SBE 35 1 With the SBE 35 still connected to the system turn on power to the Deck Unit 2 Double click on SeaTerm exe The display shows the main screen 3 Inthe Configure menu select SBE 35 On the COM Settings tab select the COM port that is connected to Modem Channel SBE 1 plus Deck Unit or Carousel Data SBE 33 Deck Unit as applicable header parameters 4 Click on the Upload Settings tab The dialog box looks like this SBE 35 Configuration Options x Header Information Upload Baud rate 300 v Upload data Allas a single file C Allseparated by cast Baud for uploading data from SBE 35 to computer For SBE 35 this is same as baud rate for general communication 300 baud C By scan number range C Froma single cast Defines data upload type when C By cast using Upload on Toolbar or Upload Data in Data menu e All as single file All data uploaded into one file e By scan
32. deployment box with the header form appears Enter the desired header After all data has been uploaded information and click OK send SampleNum 0 If this E In the Open dialog box enter the desired upload file name and command is not sent new data will click OK The upload file has a asc extension be stored after the last recorded F SEATERM sends the data upload command DDb e sample preventing use of the entire G When the data has been uploaded SEATERM shows the S gt prompt memory capacity 8 Ensure all data has been uploaded by reviewing the data 25 Section 4 Deploying and Operating SBE 35 Comparing SBE 35 Data to CTD Data Note For complete details on use of SBE Data Processing see the SBE Data Processing manual or Help files Only details relating to the use of the SBE 35 are covered here To compare the uploaded SBE 35 asc data file to the CTD data file hex or dat process the CTD data in SBE Data Processing 1 Double click on SBEDataProc exe 2 Create a ros bottle file which contains CTD data for a user selected range of scans before and after each bottle firing A B C In SBE Data Processing s Run menu select Data Conversion On the File Setup tab select the configuration con file and data dat or hex file for your CTD On the Data Setup tab set the following Create file types create both data and bottle file or bottle file only Source of scan range data sca
33. e Carousel See Connector Mating and Maintenance in Section 5 Routine Maintenance and Calibration for information on lubricating and burping the connectors Turn on power to the SBE 33 Deck Unit Double click on Seaterm exe to verify communications and setup A Inthe Configure menu select SBE 35 Select the Com port that is connected to Carousel Data on the back of the SBE 33 Deck Unit the SBE 35 uses the carousel data channel for communications Click OK B Click Status on the Toolbar DS command to verify communication with the SBE 35 and check setup parameters Change any parameters if desired see Command Descriptions in Section 3 Preparing for Deployment and resend the status command to verify the changes C Ensure all data has been uploaded and then type SampleNum 0 and press the Enter key to make the entire memory available for recording If SampleNum is not reset to zero data will be stored after the last recorded sample D Click Disconnect on the Toolbar to free the computer Com port E Close SEATERM Double click on Seasave exe to acquire the CTD cast A Set up the system and display windows B In the Real Time Data menu select Start Make the desired selections in the Start Real Time Data Acquisition dialog box and then click the Start button C Fire bottles as desired Each time it receives a bottle confirmation the SBE 35 takes a sample and stores the data in EEPROM If the next bottle is fired before
34. e thermal mass of the metal frame or active thermal dissipation from electronic instruments Connect the SBE 35 to the SBE 9plus JT7 and SBE 32 Carousel Water Sampler JB2 using the Sea Bird Y cable cable 171220 drawing 32208 for standard connector on the SBE 35 The three arms of the cable are labeled SBE 9 SBE 32 and SBE 35 Connect each arm to the proper device See Connector Mating and Maintenance in Section 5 Routine Maintenance and Calibration for information on lubricating and burping the connectors Turn on power to the SBE 11 plus Deck Unit Double click on Seaterm exe to verify communications and setup A Inthe Configure menu select SBE 35 Select the Com port that is connected to Modem Channel on the back of the SBE 1 1plus Deck Unit the SBE 35 uses the modem channel for communications Click OK B Click Status on the Toolbar DS command to verify communication with the SBE 35 and check setup parameters Change any parameters if desired see Command Descriptions in Section 3 Preparing for Deployment and resend the status command to verify the changes C Ensure all data has been uploaded and then type SampleNum 0 and press the Enter key to make the entire memory available for recording If SampleNum is not reset to zero data will be stored after the last recorded sample D Click Disconnect on the Toolbar to free the computer Com port E Close SEATERM Double click on Seasave exe to acquire the CTD cast A
35. ference readings is 1048576 raw thermistor average raw reference resistor zero average raw reference resistor full scale average raw reference resistor zero average Plugging this value into the calibration equation yields the computed temperature in engineering units C ITS 90 Data Uploaded from EEPROM Data is placed in the SBE 35 s EEPROM e ach time the SBE 35 receives a valid bottle fire confirmation sequence when used with the SBE 32 Carousel Water Sampler e When the user sends TS typically for lab use Data is uploaded using SEATERM s Upload button or DDb e in the following format Column Description 1 sample number 2 date DD MMM YYYY day month year The month is a 3 character alphabetic abbreviation e g jan feb mar etc 3 time HH MM SS hour minute second 4 bn bottle position number bottle position number is 0 if sample was taken in response to TS 5 diff maximum minimum raw thermistor reading during a measurement provides a measure of the amount of variation during the measurement 6 val average raw thermistor reading corrected for zero and full scale reference readings 7 t90 average corrected raw thermistor reading converted to engineering units C ITS 90 Example SBE 35 at room temperature user input in bold S gt DD1 2 1 30 Sep 1998 16 15 13 bn 8 diff 19 val 284583 3 t90 23 133510 2 30 Sep 1998 16
36. he standards grade platinum resistance thermometer SPRT 1 Connect the SBE 35 to the Interface Box and the Interface Box to the computer using the supplied Sea Bird cables Turn on power to the Interface Box 2 Double click on Seaterm exe to verify communications and setup A In the Configure menu select SBE 35 In the Configuration Options dialog box select the COM port that is connected to the Interface Box Click OK B Click Connect on the Toolbar the S gt prompt should display C Click the Status button on the Toolbar DS command to verify communication with the SBE 35 and check setup parameters Change any parameters if desired see Command Descriptions in Section 3 Unscrew and remove sensor Preparing for Deployment and resend the status command to verify of guard for use in fixed point cell the changes 3 Prepare the SBE 35 A Unscrew the sensor guard from the housing Carefully remove the guard B Unscrew the brass and white plastic tip bushing from the temperature sensor probe tip C Using a syringe fill the brass and white plastic tip bushing with the same thermal transfer fluid used in the fixed point cell for example de ionized water with 2 isopropyl alcohol Fill the tip bushing from the bottom so that air bubbles are not trapped inside D Screw the bushing onto the SBE 35 probe tip E Adjust the SBE 35 probe temperature to lt 1 C warmer than the fixed point temperature to ensure the inner melt
37. ile temperatures are reported to micro degree level we believe the reliable resolution of temperature with this system is approximately 0 000025 C The time drift rate of the SBE 35 is expected to be less than 0 001 C year based on bench tests of the circuit and our experience with the super stable SP 60 thermistors in other Sea Bird instruments for example SBE 16 It is possible that the initial drift of the sensor will exceed the anticipated limit for a few months due to manufacturing stresses placed on circuit components SBE 35 Fixed Point Calibration Slope and Offset As with SPRT methodology the basic certification of the SBE 35 sensor is performed by calibration measurements in thermodynamic fixed point cells The slope and offset terms are determined by placing the SBE 35 in TPW and GaMP cells after the SBE 35 has been linearized Note Figure 2 shows data taken in a TPW cell Figure 3 shows the GaMP curve Set the slope to 1 0 Slope and the The reported temperatures are calculated using the 29 Jun 95 linearization offset to 0 0 Offset before with slope set to 1 0 and offset set to 0 0 and the number of cycles to average performing a fixed point calibration NCycles set to 16 Described below is the calculation of the slope and offset from the fixed point calibration data in Figures 2 and 3 Triple Point of Water Defined temperature ITS 90 0 010000 C Hydrostatic head effect 0 0073 mdeg cm In our TP
38. is attached to the connector end of the SBE 35 housing Check the anode periodically to verify that it is securely fastened and has not been eaten away Avoid direct attachment of metal objects to the housing Connector Mating and Maintenance CAUTION Do not use WD 40 or other petroleum based lubricants as they will damage the connectors Locking sleeve Mated connectors do not require periodic disassembly or other attention Inspect connectors that are unmated for signs of corrosion product around the pins When remating 1 Lightly lubricate the inside of the dummy plug cable connector with silicone grease DC 4 or equivalent 2 Standard Connector Install the plug cable connector aligning the raised bump on the side of the plug cable connector with the large pin pin 1 ground on the SBE 35 Remove any trapped air by burping or gently squeezing the plug connector near the top and moving your fingers toward the end cap OR MCBH Connector Install the plug cable connector aligning the pins 3 Place the locking sleeve over the plug cable connector Tighten the locking sleeve finger tight only Do not overtighten the locking sleeve and do not use a wrench or pliers Verify that a cable or dummy plug is installed for each connector on the system before deployment 28 Calibration Section 5 Routine Maintenance and Calibration Calibration Introduction The first calibration step is to char
39. n for SEASAVE V7 See SEASAVE Win32 s manual and or Help files if you prefer to use the older software The SBE 35 is an accurate ocean range temperature sensor that can be standardized against Triple Point of Water and Gallium Melt Point cells as if it were a Standards grade Platinum Resistance Thermometer SPRT but is also capable of measuring temperature in the ocean to depths of 6800 meters 22 300 ft The SBE 35 communicates via a standard RS 232 interface at 300 baud 8 data bits no parity The SBE 35 is supplied with an Interface Box for setup and lab use The Interface Box provides isolated power to the SBE 35 and buffers the serial communication lines to minimize noise input to the SBE 35 from external sources When used with the Interface Box user selectable operating modes are e Sample continuously and output real time data data is not stored in EEPROM or e Take a single sample store data in EEPROM and output real time data The SBE 35 can also be used with the SBE 32 Carousel Water Sampler and one of the following CTD systems e Real Time Operation SBE 9plus CTD with SBE 1 1plus Deck Unit or SBE 19 19plus or 25 CTD with SBE 33 Deck Unit e Autonomous Operation details not documented in this manual SBE 9plus CTD with SBE 17plus V2 SEARAM or SBE 19 19plus or 25 CTD with Auto Fire Module AFM The SBE 35 makes a temperature measurement each time a bottle fire confirmation is received and stores the v
40. ns marked with bottle confirm bit Scan range offset 0 Scan range duration 1 1 NCycles See the SBE Data Processing manual or Help files for selection of other parameters on the File Setup and Data Setup tabs Click Start Process SBE Data Processing creates a cnv file with all the CTD data if create both data and bottle file was selected in Step 2C and a ros file with CTD data for the scans associated with each bottle 3 Create a btl bottle summary file which contains averaged values as well as optional minimum maximum and standard deviation for each bottle A B C In SBE Data Processing s Run menu select Bottle Summary On the File Setup tab select the con and ros files for your CTD On the Data Setup tab set the following Output min max values for averaged variables select to obtain minimum maximum and standard deviation for each parameter Select Averaged Variables click to select parameters to process Select Derived Variables click to select parameters to calculate from input parameters Click Start Process SBE Data Processing creates a btl file with summary CTD data for the scans associated with each bottle firing 26 Section 4 Deploying and Operating SBE 35 Operation in Fixed Point Cells For calibration measurements in thermodynamic fixed point cells a brass and white plastic tip bushing is used to give the SBE 35 a length diameter and thermal averaging characteristic that mimics t
41. nt Cycle srna E a inary E R 36 Real Time Clocks ar n A R E T ERE T 37 Memo a a an E A R E A A 37 Appendix II Electronics Disassembly Reassembly esessesossesesecccoesosoesesesoee 38 Appendix IIT Command Summary sscssssssssersessrsessessssessssessessssesserees 39 Appendix IV References e sessesoeseseseccesosoesesececoesosorsesesocoeroroesesecocoesoroeseeeeeee 40 Appendix V Replacement Parts esseessseeesesesceeececececeeeeeeeeeeoeeeeeeeeeeeeeeeeeeeeeeee 41 TOK A E E A E OET 42 Section 1 Introduction Section 1 Introduction This section includes contact information and photos of a standard SBE 35 shipment About this Manual How to Contact Sea Bird This manual is to be used with the SBE 35 Deep Ocean Standards Thermometer It is organized to guide the user from installation through operation and data collection We ve included detailed specifications command descriptions maintenance and calibration information and helpful notes throughout the manual Sea Bird welcomes suggestions for new features and enhancements of our products and or documentation Please e mail any comments or suggestions to seabird seabird com 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
42. of the fixed point cell is maintained F Place the SBE 35 in the fixed point cell dushing unscrew thermal transfer ind replace on sor probe tip 4 In SEATERM A Click Capture on the Toolbar to save data that appears on screen to a file with a cap extension The Open dialog box appears enter the desired file name and location and click Open B Type Run and press the Enter key to start continuous sampling The data appears on screen and is saved to the cap file s 5 When done remove power from the Interface Box Sensor probe tip 6 Reinstall the sensor guard on the SBE 35 7 Use a text editor WordPad NotePad etc to extract the stable converted data of interest from the cap file 27 Section 5 Routine Maintenance and Calibration Section 5 Routine Maintenance and Calibration This section reviews corrosion precautions connector mating and maintenance and sensor calibration The SBE 35 s accuracy is sustained by the care and calibration of the sensors and by establishing proper handling practices Corrosion Precautions Ring shaped anode Rinse the SBE 35 with fresh water after use and prior to storage All stainless steel screws that are exposed to salt water have been generously lubricated with Blue Moly After each cruise remove these screws and re lubricate This compound is electrically conductive use care to ensure it does not get on PCBs A ring shaped zinc anode
43. on of power approximately 1 minute Real Time Clock External Power Current 140 160 mA Operating 60 70 mA Materials Aluminum pressure case rated at 6 800 meters 22 300 feet Weight In water 0 5 kg 1 1 Ibs In air 0 9 kg 2 Ibs Interface Box Specifications Power Requirements 100 240 VAC 50 60 Hz Dimensions 178 x 127 x 57 mm 7 x 5 x 2 25 inch Weight 1 1 kg 2 5 Ibs Interface Box Connectors Switches and LEDs e Connections gt RS 232 connects to the computer gt SBE 35 connects to the SBE 35 gt AC Input connects to 100 240 VAC power supply e Power switch and LED switch turns power to the Interface Box on off Red PWR LED turns on to indicate power is on Interface Box front and back e LEDs indicate if the Interface Box is communicating with other parts of COC Fuse 3AG 1 2A Slow Blow the system gt Yellow TX LED flashes when a message is received from the SBE 35 ha 100 240 VAC 50 60 Hz gt Green RX LED flashes when a message is transmitted to the SBE 35 Section 2 Description of SBE 35 Dimensions and End Cap Connector Note Sensor guard not shown Ensure guard is installed when deploying at sea gerne 48mm tg 6 2 1 9 in 1 eo ry F Y o a 79mm SS 4 0 3 1 in Standard Optional Wet Pluggable Connector J Connector MCBH 6MP WB AL AG 306 HP SS 3 8 length ba
44. pendix l Functional Description Measurement Cycle The SBE 35 determines temperature by applying a 1 2 kHz AC excitation to a reference resistor zero ohms and an ultrastable thermistor and digitizing the output from each with a 20 bit delta sigma A D converter The reference resistor is a hermetically sealed VISHAY VHP202K inside a temperature controlled oven The switches are All Position mercury wetted reed relays with a stable contact resistance AC excitation and ratiometric comparison using a common processing channel removes measurement errors due to parasitic thermocouples offset voltages leakage currents and gain errors Maximum power dissipated in the thermistor is 5 x 10 7 watts Sensor output 1048576 NT NZ NR NZ where NR output from the reference resistor NZ output from zero ohms NT output from the thermistor The process for each acquisition cycle is Select zero ohms wait 0 1 seconds for the output to stabilize Average for 0 267 seconds this is NZ Select reference resistor wait 0 1 seconds for the output to stabilize Average for 0 267 seconds this is NR Select thermistor wait 0 1 seconds for the output to stabilize Average for 0 267 seconds this is NT DS Ea Na The total time per cycle is 1 1 seconds The number of acquisition cycles per sample is user programmable NCycles Increasing the number of cycles per sample increases the time to acquire the sample while reducing the RMS
45. pler frame where the water flushes freely and there is minimal contamination from the passive thermal mass of the metal frame or active thermal dissipation from electronic instruments Data from the SBE 35 can be compared to the CTD s temperature sensor data the best comparison measurements are expected in deep isothermal water With good calibration locks of the SBE 35 in fixed point cells before and after a cruise the offset drift of an SBE 3 temperature sensor on SBE 9plus and SBE 25 CTDs can be measured in situ to a precision better than 0 0005 C The SBE 35 has a time constant of 0 5 seconds so it lags the SBE 3 if temperature is changing during the measurement interval For a first order correction determine the temporal gradient during the measurement interval from the SBE 3 temperature data in the ros file gradient corrected SBE 35 temperature measured SBE 35 temperature 0 5g where g temperature gradient C second 20 Section 4 Deploying and Operating SBE 35 Deployment with SBE 9p us CTD SBE 11p us Deck Unit and SBE 32 Carousel Water Sampler Note For details on wiring setup and operation of the entire system see the SBE 11p us manual Only details relating to the use of the SBE 35 are covered here 1 Mount the SBE 35 without tip bushing with sensor guard in a secure area on the water sampler frame where the water flushes freely and there is minimal contamination from the passiv
46. quence when used with an SBE 32 Carousel Water Sampler e When the SBE 35 receives a valid bottle fire confirmation sequence a character with decimal value 6 followed by a character with decimal value greater than 48 and less than 84 it takes a measurement NCycles in duration and stores the data in EEPROM Cal Start data sampling continuously now outputting real time raw data Data is not stored in EEPROM To stop sampling press Esc key or type Ctrl C and then press Enter key Time from start of one sample to start of next is 1 1 NCycles 2 7 seconds The 2 7 seconds is required for transmitting real time data Run Start data sampling continuously now outputting real time raw data as well as computed temperature C Data is not stored in EEPROM To stop sampling press Esc key or type Ctrl C and then press Enter key Time from start of one sample to start of next is 1 1 NCycles 2 7 seconds The 2 7 seconds is required for converting measured values to computed temperature and transmitting real time data TS Take one sample consisting of NCycles measurements store average in EEPROM and transmit average real time Data Upload Command DDb e Upload data from memory from sample b to sample e First sample is number 1 If DD is sent all samples are uploaded Examples Upload data from EEPROM user input in bold Click Capture on Toolbar and enter desired filename in dialog box
47. se 1 2 20 thread Pin Signal 1 Ground 2 Receive from SBE 9plus SBE 33 or Interface Box 3 Transmit 4 NC 209 mm 5 Bottle fire confirmation from Carousel 8 25 in 6 Power 9 to 16V 387 mm 15 25 in 55 mm 2 15 in nt AS Unscrew and remove tip Sa f bushing when 78mm using SBE 35 3 06 in at sea gt e 7mm 0 28 in Section 3 Preparing for Deployment Section 3 Preparing for Deployment This section describes software installation testing and setting up the SBE 35 commands and data output formats Software Installation Note It is possible to use the SBE 35 without SEATERM by sending direct commands from a dumb terminal or terminal emulator such as Windows HyperTerminal Sea Bird recommends the following minimum system requirements for SEASOFT Win32 Windows 2000 or later 500 MHz processor 256 MB RAM and 90 MB free disk space for installation If not already installed install SEATERM and other Sea Bird software programs on your computer using the supplied software CD 1 Insert the CD in your CD drive 2 Double click on Seasoft Win32 exe 3 Follow the dialog box directions to install the software The default location for the software is c Program Files Sea Bird Within that folder is a sub directory for each program The installation program allows you to install the desired components Install all the components or just install SEATERM SEASAVE V7 and SBE Data Processing
48. sfer fluid is de ionized water injected at a temperature of 58 C to insure an inner melt A thermometer well brass bushing is also used in the GaMP cell The SBE 35 was inserted into the well at about 35 C to preserve the inner gallium melt and data were acquired with the 29 Jun 95 calibration coefficients and NCycles 16 Before plotting the data were further averaged with the SEASOFT program BIN AVERAGE using bin 16 scans The melt plateau temperature is taken to be the average of temperatures on the upper plateau between hours 8 5 to 9 5 and is 29 764336 C 34 Glossar Glossary PCB Printed Circuit Board SBE 35 High accuracy deep ocean standards thermometer SBE Data Processing Sea Bird s Windows 2000 XP data processing software which calculates and plots conductivity temperature pressure data from auxiliary sensors and derived variables Scan One data sample SEASAVE V7 Sea Bird s Windows 2000 XP real time data acquisition software used to acquire convert and display real time or archived raw data SEASOFT Win32 Sea Bird s complete Windows 2000 XP software package which includes software for communication real time data acquisition and data analysis and display SEASOFT Win32 includes SEATERM SEASAVE V7 SBE Data Processing SEATERM Sea Bird s Windows 95 98 NT 2000 XP terminal program used to communicate with the SBE 35 35 Appendix Functional Description Ap
49. ter SPRT 50225 Mount kit For mounting SBE 35 on 9plus For standard connectors 41 Index Index A About Sea Bird 4 C Calibration 29 Clock 7 37 Command summary 39 Commands coefficients 17 data upload 16 descriptions 14 sampling 16 setup 15 status 14 testing 17 Communication defaults 12 Connector 8 28 Corrosion precautions 28 D Data output formats 18 Deployment preparing for 9 Description 6 Dimensions 8 Disassembly 38 E Electronics disassembly reassembly 38 End cap connector 8 F Format data output 18 Functional description 36 G Glossary 35 I Installation software 9 Interface box connectors 7 LEDs 7 42 L Limited liability statement 2 M Maintenance 28 Measurement cycle 36 Memory 7 37 O Operation CTD Deck Unit and Carousel 20 fixed point cells 27 P Parts replacement 41 R Recovery physical handling 23 uploading data 24 References 40 Replacement parts 41 S SBE Data Processing 6 9 26 SEASAVE 6 9 21 22 SEASOFT 6 9 SEATERM 6 9 10 21 22 24 main screen 10 toolbar buttons 11 Software 6 Software installation 9 Specifications Interface Box 7 SBE 35 7 System description 6 T Testing 9 U Unpacking SBE 35 5 Uploading data 24
50. the SBE 35 finishes sampling time required sample 1 1 NCycles 2 7 seconds the SBE 35 ignores the next bottle confirmation D When the cast is complete in the Real Time Data menu select Stop Turn off power to the SBE 33 Deck Unit 22 Section 4 Deploying and Operating SBE 35 Recovery WARNING If the SBE 35 stops working while Rinse the SBE 35 and the other underwater instruments with fresh water and underwater is unresponsive to dry thoroughly commands or shows other signs of flooding or damage carefully secure it away from people until you have determined that abnormal internal pressure does not exist or has been relieved Pressure housings may flood under pressure due to dirty or damaged o rings or other failed seals When a sealed pressure housing floods at great depths and is subsequently raised to the surface water may be trapped at the pressure at which it entered the housing presenting a danger if the housing is opened before relieving the internal pressure Instances of such flooding are rare However a housing that floods at 5000 meters depth holds an internal pressure of more than 7000 psia and has the potential to eject the end cap with lethal force A housing that floods at 50 meters holds an internal pressure of more then 85 psia this force could still cause injury If you suspect the SBE 35 is flooded point the SBE 35 in a safe direction away from people and loosen the bulkhead conne
51. thin 0 000500 C 32 Section 5 Routine Maintenance and Calibration SBE 35 temperature 0 009 0 010 0 011 2 000 4 000 6 000 000 awt 10 000 EPON fae the iS ecg ceteealodecded Aiarnesol seseeveenas Ssunou 12 000 14 000 16 000 wor SAMPLE 20 000 22 000 TPW78A16 CNV SBE 35 S N 1 in TPW cell 1682 avg 16 48 hour time series measurements of SBE 35 S N 1 in a TPW cell TPW S N Jarrett 1682 The TPW cell is maintained in a strain annealed state in a stirred water bath at 0 008 C In the TPW thermometer well the thermal transfer fluid is de ionized water with 2 isopropyl alcohol and a brass bushing of FIGURE 2 5 cm length is used for good thermal contact between the measurement section of the SBE 35 including its tip bushing and the thermometer well wall SBE 35 data were acquired with the 29 Jun 95 calibration coefficients and NCycles 16 the data set was further averaged with the SEASOFT program BIN AVERAGE using bin 16 scans Average measured temperature was 0 009626 C 33 Section 5 Routine Maintenance and Calibration SBE 35 temperature 29 763 29 764 29 765 0 900 ee es maer 2 000 ct 4 000 3 0 F O 5 000 SAMPUE 8 000 10 000 sail 12 000 GAMP2A16 CNV SBE 35 S N 1 gallium melt FIGURE 3 11 hour time series measurements of SBE 35 S N 1 in a GaMP cell GaMP s n Isotech 114 The GaMP cell is melted in a Isotech gallium oven The thermal tran
52. us asc extension calibration Upload coefficient and Before using Upload i user input Configure upload and header parameters in leader Configure menu information e Remove power to stop sampling in file Free computer COM port used to communicate Disconnect with SBE 35 COM port can then be used by another program Section 3 Preparing for Deployment 3 Inthe Configure menu select SBE 35 The dialog box looks like this x COM Settings Upload Settings Header Information Interface for communication Computer COM port baud rate between computer and data bits and parity for Interface Box communication between computer and Interface Box Note 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 35 37 etc When you open SEATERM and select the desired instrument in the Configure menu the Configuration Options dialog box shows the last saved settings for that instrument COMM Port Baud Rate Mode 200 R5 232 Full Duplex C RS 465 Half Duplex Cc Inductive Modem Data Bits Cy amp 8 Modem AS485 ID Parity C PromptiD C Even C Odd None Automatically get ID Cancel Default Help Loox Make the selections in the Configuration Options dialog box
53. y F ay 1 Asa precaution before beginning rt j Upload any data in memory and Record the setup parameters from the DS command response it 2 Remove the sensor end cap and electronics x A Wipe the outside of the sensor end cap and housing dry being careful to remove any water at the seam between them end cap B To access the hex flats for unscrewing the end cap first unthread the _ using 1 sensor guard by rotating counter clockwise Carefully remove the wrench r sensor guard C Unthread the end cap by rotating counter clockwise using a wrench on the hex flats if necessary D Slide the end cap and attached electronics out of the housing Note that the electronics are electrically connected to the bulkhead connector E Remove any water from the O ring and mating surface inside the housing with a lint free cloth or tissue F Becareful to protect the sensor and O ring from damage or contamination a Unscrew Reassembly 1 Reinstall the sensor end cap and electronics Note A Remove any water from the O ring and mating surface in the housing Before delivery a desiccant package with a lint free cloth or tissue Inspect the O ring and mating surface is placed in the housing and the for dirt nicks and cuts Clean or replace as necessary Apply a light housing is filled with dry Argon gas coat of O ring lubricant Parker Super O Lube to the O ring and These measures help prevent mating surface cae ae oe B

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