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SBE SeaCAT 21 User Manual

Thermosalinograph. conductivity and temperature recorder with rs-232 interface
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SBE 21 SeaCAT
Thermosalinograph
Conductivity and Temperature Recorder
with RS-232 Interface
User's Manual
Sea-Bird Electronics, Inc.
th
13431 NE 20
Street
Bellevue, Washington 98005 USA
Telephone: 425-643-9866
Fax: 425-643-9954
E-mail: seabird@seabird.com
Website: www.seabird.com
Manual Version #027, 02/21/13
SBE 21 Firmware 5.0a and later
90488 Interface Box Firmware 3.1b and later
Seasave V7 Version 7.22.4 and later
SBE Data Processing Version 7.22.4 and later

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Summary of Contents for SBE SeaCAT 21

  • Page 1 Bellevue, Washington 98005 USA Manual Version #027, 02/21/13 Telephone: 425-643-9866 SBE 21 Firmware 5.0a and later 90488 Interface Box Firmware 3.1b and later Fax: 425-643-9954 Seasave V7 Version 7.22.4 and later E-mail: seabird@seabird.com SBE Data Processing Version 7.22.4 and later Website: www.seabird.com...

  • Page 2: Limited Liability Statement

    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.

  • Page 3: Declaration Of Conformity

    Manual revision 027 Declaration of Conformity SBE 21 Declaration of Conformity...

  • Page 4: Table Of Contents

    Section 4: Setting Up SBE 21 ............19 Setting Communications Parameters in Interface Box........19 Power and Communications Test and SBE 21 Setup in Seaterm ....19 Command Descriptions ..................24 Checking SBE 21 Configuration (.xmlcon or .con) File in Seasave ....39 Data Formats ....................
  • Page 5 Manual revision 027 Table of Contents SBE 21 Glossary ....................61 Appendix I: Functional Description ..........62 Sensors ......................62 Sensor Interface ....................62 Real-Time Clock ....................62 Power ....................... 62 Appendix II: Electronics Disassembly/Reassembly ......63 Appendix III: Command Summary ..........65 Appendix IV: AF24173 Anti-Foulant Device ........

  • Page 6: Section 1: Introduction

    SBE 21 shipment. About this Manual This manual is to be used with the SBE 21 SeaCAT Thermosalinograph Conductivity and Temperature Recorder. It is organized to guide the user from installation through operation and data collection. We have included detailed specifications, command descriptions, maintenance and calibration information, and helpful notes throughout the manual.

  • Page 7: Unpacking Sbe 21

    Manual revision 027 Section 1: Introduction SBE 21 Unpacking SBE 21 Shown below is a typical SBE 21 shipment. Grounding cable (from SBE 21) I/O cable (SBE 21 to Interface Box) SBE 21 4-pin RMG-4FS pigtail with locking sleeve (from SBE 21 to Interface Box) PN 90488 –...

  • Page 8: Section 2: Description Of Sbe 21

    DC power and an optically-isolated RS-232 data interface for supports acquisition of data from a the SBE 21, and provides power and a NMEA 0183 receiver for a NMEA NMEA device connected directly device (not supplied by Sea-Bird). The Interface Box appends NMEA to the computer (instead of the information to the SBE 21 data stream.
  • Page 9 Future upgrades and enhancements to the SBE 21 firmware can be easily installed in the field through a computer serial port and the I/O connector on the SBE 21, without the need to return the SBE 21 to Sea-Bird. The SBE 21 is supplied with a powerful Windows software package, Notes: ©...

  • Page 10: Specifications

    Input range: 0 - 5 VDC Maximum Safe Operating 34.5 decibars (50 psi) Pressure SeaCAT/Sealogger RS-232 and Navigation Interface Box is included with standard SBE 21 Input Power order. If testing SBE 21 without Interface Box, provide 9-14 VDC power. Weight 41 kg (90 lbs)

  • Page 11: Dimensions And Bulkhead Connectors

    Manual revision 027 Section 2: Description of SBE 21 SBE 21 Dimensions and Bulkhead Connectors Dimensions in millimeters (inches)

  • Page 12: Data I/O

    Note that the SBE 38 can be added to the system at any time, and does not temperature from the remote temperature sensor to calculate need to be part of the original order for the SBE 21. No modifications to the density and sound velocity.

  • Page 13: Section 3: Installing System

    This section provides instructions for: • Installing software • Mounting and wiring the SBE 21 and Interface Box, including system schematic and installation guidelines, mechanical installation, and electrical installation Installing Software Seasoft V2 was designed to work with a PC running Windows XP service Notes: pack 2 or later, Windows Vista, or Windows 7.

  • Page 14: System Schematic And Installation Guidelines

    Valves are open when handle is horizontal, closed when handle is vertical. Sea-Bird does not provide detailed installation instructions for the SBE 21 and remote temperature sensor, given the unique nature of every ship and type of installation. The installation of the SBE 21 should be done by qualified...
  • Page 15 To minimize bubbles:  Place the pump below the water line to push rather than pull the water.  Locate the SBE 21’s hull intake as deep as possible, as far as possible from bubble sources (bow wake, propeller, etc.) •...

  • Page 16: Mechanical Installation

    Anti-Foulant Device). Mount the SBE 21 at the desired location: • Orient the SBE 21 with the bulkhead connectors at the top. • Provide minimum top clearance of 559 mm (22 inches) for removal of the sensor/electronics module from the water jacket.

  • Page 17: Electrical Installation

    D. Install the 4-pin cable connector on the SBE 21, aligning the raised bump on the side of the connector with the large pin on the SBE 21’s bulkhead connector. Remove any trapped air by burping or gently...
  • Page 18 Manual revision 027 Section 3: Installing System SBE 21 Connecting Interface Box Connect Serial on the Interface Box to the computer using the DB-9S to DB-9P cable. Connect the Interface Box AC Input to a standard, 3-prong, grounded, AC outlet, using the UL/IEC-approved power cord (AC voltage between 85-270 VAC).

  • Page 19: Section 4: Setting Up Sbe 21

    Power and Communications Test and SBE 21 Setup in Seaterm Wire the SBE 21 to the Interface Box, wire the Interface Box to the computer, and provide power to the Interface Box, as described in Electrical Installation in Section 3: Installing System.
  • Page 20 –they do not write over any existing instrument settings. Stop Interrupt and end current activity, such as uploading or diagnostic test. (press Esc key or Ctrl C) Free computer COM port used to communicate with SBE 21. COM port can then be used by Disconnect — another program.
  • Page 21 Manual revision 027 Section 4: Setting Up SBE 21 SBE 21 In the Configure menu, select SBE 21. The dialog box looks like this: Computer COM port (1 through 10 as applicable), baud rate between Interface Box and computer (9600,...
  • Page 22 Type 1 and press the Enter key. The display then shows the current mode as 1. Echo characters to and from the instrument, which is the mode required for communicating with the SBE 21 to set it up. Type @ to exit the setup menu.
  • Page 23 QL several times before the SBE 21 responds. logging stopped, stop command 10. Command the SBE 21 to take a sample by typing TS and pressing the Enter key. The display looks like this (if output format=SBE 21, number...

  • Page 24: Command Descriptions

    Toolbar or pressing the Enter key. • If the SBE 21 is logging and transmitting data and you want to send a command, press the Esc key or click Stop on the Toolbar (or type Ctrl C) and then press the Enter key. This temporarily stops logging that is in...
  • Page 25 Sample SBE 38 remote temperature sensor [SBE38=]? • Output format [Fx] • Output Executing and Executed tags [OutputExecutedTag=]? Example: Send GetCD to SBE 21 (user input in bold, command used to modify parameter in parentheses) getcd <ConfigurationData DeviceType='SBE21' SerialNumber='02106001'> <SampleMode> <SampleInterval>15</SampleInterval> [SI=] <AutoRun>no</AutoRun>...
  • Page 26 Manual revision 027 Section 4: Setting Up SBE 21 SBE 21 Status Commands (continued) GetSD Get and display status data, which contains data that changes while deployed. Note: List below includes, where applicable, The DS response contains similar command used to modify parameter:...
  • Page 27 Example: SBE 21 (user input in bold, command used to modify coefficient in parentheses) getcc <CalibrationCoefficients DeviceType = 'SBE21' SerialNumber = '02106001'>...
  • Page 28 Manual revision 027 Section 4: Setting Up SBE 21 SBE 21 Status Commands (continued) GetEC Get and display event counter data, which can help to identify root cause of a malfunction. Event counter records number of occurrences of common timeouts, power-on resets, etc. Can be cleared with ResetEC.
  • Page 29 Manual revision 027 Section 4: Setting Up SBE 21 SBE 21 Status Commands (continued) GetHD Get and display hardware data, which is fixed data describing SBE 21: Note: • Device type, Serial number External sensor types and serial • Manufacturer numbers can be changed in the field, •...
  • Page 30 [Average=]? • logging status • power cutoff voltage Example: Display status for SBE 21 that has SBE 38 remote temperature sensor enabled (user input in bold). SEACAT THERMOSALINOGRAPH V5.0a SERIAL NO. 4300 12/15/2009 14:23:14 [DateTime=] ioper = 50.7 ma,...
  • Page 31 Seaterm. Example: Display coefficients for SBE 21 (user input in bold). DCAL SEACAT THERMOSALINOGRAPH V5.0a SERIAL NO. 3166 12/15/2009 14:30:14 volt 0: offset = -4.662333e-02, slope = 1.249281e+00 volt 1: offset = -4.658000e-02, slope = 1.249034e+00...
  • Page 32 Executing tag displays one or more times if SBE 21 response to command requires additional time. x=N: Do not. Example: Set SBE 21 to output Executed and Executing tags (user input in bold). outputexecutedtag=y <Executed/>getcd . . . (GetCD response) <Executed/>...
  • Page 33 Section 4: Setting Up SBE 21 SBE 21 Logging Commands Logging commands configure the SBE 21’s response upon waking up, and direct the SBE 21 to sample data at pre-programmed intervals. When Notes: commanded to start sampling with GL or RL, or upon powering up (if •...
  • Page 34 Section 4: Setting Up SBE 21 SBE 21 Logging Commands (continued) Initialize logging - after all previous data has been uploaded from SBE 21, initialize logging before starting to log again to Notes: make entire memory available for • IL and SampleNumber=0 have identical effects.
  • Page 35 Automatically start logging when Note: power is applied. When power is applied, After sending AutoRun=Y, you must turn power to the SBE 21 off SBE 21 resumes writing data and headers and then on again to start logging. to memory without resetting sample number or header number (does not overwrite recorded data).
  • Page 36 2 10 Jul 2009 13:02:12 samples 5 to 10, int = 60 sec, stop = stop cmd Sampling Commands These commands request a single sample. The SBE 21 always stores data for Note: the most recent sample in its buffer.
  • Page 37 Section 4: Setting Up SBE 21 SBE 21 Diagnostic Commands The SBE 21 outputs 100 samples for each diagnostic test. Data is not stored in FLASH memory. Press the Esc key or Stop button to stop the test. Display frequencies:...
  • Page 38 Factory Settings – do not modify in the field SetMfgDate= SetPcbSerialNum1= SetPcbSerialNum2= SetPcbSerialNum3= SetPcbSerialNum4= SetPcbAssembly1= SetPcbAssembly2= SetPcbAssembly3= SetPcbAssembly4= Auxiliary Sensor Settings – can be modified in the field to accommodate changes in auxiliary sensors cabled to the SBE 21 SetVoltType0= SetVoltSN0= SetVoltType1= SetVoltSN1= SetVoltType2= SetVoltSN2= SetVoltType3= SetVoltSN3=...

  • Page 39: Checking Sbe 21 Configuration (.Xmlcon Or .Con) File In Seasave

    2375.con. You may rename the file (but not the extension) if the SBE 21, to add Lat/Lon data to the SBE 21’s hex data, or to transmit desired; this will not affect the Lat/Lon data only). In other words, real-time transmission of NMEA data results.
  • Page 40 SBE 21 The configuration information appears on the Instrument Configuration tab. Verify: sensors match those on your SBE 21, auxiliary sensors are assigned to the correct voltage channels, calibration coefficients for all sensors are up-to-date, NMEA position data added is selected if using a NMEA navigation device, and other NMEA selections match your system setup.

  • Page 41: Data Formats

    Section 4: Setting Up SBE 21 SBE 21 Data Formats The SBE 21 outputs data in raw, hexadecimal form as described below. The inclusion of some output parameters is dependent on the system configuration - if the specified sensor is not enabled (see Command Descriptions above), the corresponding data is not included in the output data stream, shortening the data string.

  • Page 42: Notes On Sbe 38 Remote Temperature Data Format

    Substituting into the equation: 3.7956 = 1/{4.0e-3 + 2.0e-4 [ln(1000/F)]} - 273.15 (°C) Solving for F, F = 7000 Hz SBE 21 multiplies this by 256 for appending to the data stream: 7000 x 256 = 1,792,000 decimal = 1B5800 Hex Looking at output scan from SBE 21 = ttttccccrrrrrr = A80603DA1B5800...

  • Page 43: Section 5: Setting Up Nmea Interface

    However, setup information is repeated in this section for ease-of-use. Decoded NMEA data can be appended to the end of the SBE 21 data stream in the Interface Box and passed to the computer for storage and/or display. NMEA data format is detailed in the Interface Box manual.

  • Page 44: Setting Up And Testing Nmea

    Seaterm. The Interface Box must be connected to the SBE 21 to test the Follow Steps 1 through 4 in Power and Communications Test and SBE 21 NMEA interface. If it is not connected, noise on the open Setup in Seaterm in Section 4: Setting Up SBE 21.
  • Page 45 Manual revision 027 Section 5: Setting Up NMEA Interface SBE 21 Type @ to access the setup menu. The display looks like this: Interface Box set up menu: Modes: 1. Echo characters to and from the instrument Note: 2. Add Lat/Lon to the real-time HEX data from the instrument If you select option 4 (you have a 3.

  • Page 46: Troubleshooting Nmea Interface

    Interface Box (the Interface Box can be set to echo characters to and from the SBE 21, to add Lat/Lon data to the SBE 21’s hex data, or to transmit Lat/Lon data only). In other words, real-time transmission of NMEA data is dependent...

  • Page 47: Section 6: Operating System

    Processing data Acquiring Real-Time Data with Seasave Turn on power to the Interface Box. If AutoRun=Y (SBE 21 set up to start logging automatically when • internal memory. Note that the data will not appear in Seasave until you tell Seasave to start real-time data acquisition below.
  • Page 48 SBE 21, calibration coefficients, and inclusion of NMEA data with output from SBE 21. To modify input configuration (.xmlcon or .con file, serial ports, TCP/IP ports, and/or miscellaneous), click Configure Inputs. To C:\21.con...
  • Page 49 SBE 21 responds. logging stopped, stop command C. If you want to upload data from the SBE 21’s memory now, see Uploading SBE 21 Data from Memory below. D. Send QS to place the SBE 21 in quiescent (sleep) state.

  • Page 50: Uploading Sbe 21 Data From Memory

    Uploading SBE 21 Data from Memory Double click on SeaTerm.exe. The display shows the main screen. In the Configure menu, select SBE 21. Click on the Upload Settings tab. The dialog box looks like this: Defines data upload type when using...
  • Page 51 [4300], firmware version [5.0a], number of samples in memory [50000], number of headers in memory [50], number of bytes in each scan [6], and whether the SBE 21 is logging [L] or not logging [N]. If the system does not respond: •...
  • Page 52 = no voltage cutoff = 7.5 volts If the status reply indicates that the SBE 21 is still logging, command the SBE 21 to stop logging by pressing the Enter key and sending QL. You may need to send QL several times before the SBE 21 responds.

  • Page 53: Processing Data

    The .xmlcon or .con file we know it. The file is named with can be set up in SBE Data Processing or in Seasave - see Checking the instrument serial number, SBE 21 Configuration (.xmlcon or .con) File in Seasave in Section 4: followed by a .con extension.
  • Page 54 Manual revision 027 Section 6: Operating System SBE 21 * Sea-Bird SBE 21 Data File: * FileName = C:\Odis\SAT2-ODIS\oct14-19\oc15_99.hex * Software Version Seasave Win32 v1.10 * Temperature SN = 2366 * Conductivity SN = 2366 * System UpLoad Time = Oct 15 1999...

  • Page 55: Section 7: Routine Maintenance And Calibration

    This section reviews corrosion precautions, removing the sensor / electronics module from the SBE 21 water jacket, conductivity cell cleaning and storage, and sensor calibration. The accuracy of the SBE 21 is sustained by the care and calibration of the sensors and by establishing proper handling practices.

  • Page 56: Cleaning And Storage

    Valves shown in Normal Use position Step 1: Flush with Fresh Water and Drain (open = horizontal, closed = vertical) A. Flush the system with fresh water by placing the SBE 21 valves in the following positions: Out - open...

  • Page 57: Sensor Calibration

    A. See Removing Sensor/Electronics Module from SBE 21 Water Jacket for details on reinstalling the module. B. If you will not be immediately using the SBE 21, leave all the valves in the closed position. For Normal use, place the valves in these positions:...

  • Page 58: Section 8: Troubleshooting

    Interface Box and computer. Cause/Solution 2: The communication settings entered in Seaterm may not match the setup in the Interface Box. Select the SBE 21 in the Configure menu and verify the settings in the Configuration Options dialog box. If necessary, change communication settings in the Interface Box (see the Interface Box manual for details).

  • Page 59: Problem 3: Unable To View Data In Seasave (Real-Time Data Acquisition Program)

    Problem 5: No Data Recorded Cause/Solution 1: The SBE 21’s memory may be full; once the memory is full, no further data is recorded. Verify that the memory is not full using DS (free = 0 or 1 if memory is full).

  • Page 60: Problem 5: Salinity Lower Than Expected

    Remove larger droplets of water by blowing through the conductivity cell. Do not use compressed air, which typically contains oil vapor. Running the SBE 21 in air, collect some data in Seasave and look at the raw conductivity frequency. It should be within 1 Hz of the zero conductivity value printed on the conductivity cell Calibration Sheet.

  • Page 61: Glossary

    Processing. Seaterm – Sea-Bird’s Windows terminal program used to communicate with the Interface Box and SBE 21. Seaterm can send commands to the SBE 21 (through the Interface Box) to provide status display, data acquisition setup, data display and capture, data upload from memory, and diagnostic tests.

  • Page 62: Appendix I: Functional Description

    The SBE 21 embodies the same sensor elements (pressure-protected thermistor and 3-electrode, 2-terminal, borosilicate glass cell) previously used in Sea-Bird’s modular SBE 3 and SBE 4 sensors and in the original SeaCAT design. The current version of the SBE 21 differs from older versions of the SBE 21 in that it uses two independent channels to digitize temperature and conductivity concurrently.

  • Page 63: Appendix Ii: Electronics Disassembly/Reassembly

    PCBs. Do not disassemble the SBE 21 electronics to send the sensors or Sea-Bird provides a jackscrew kit with the SBE 21, to assist in removal of the PCBs to Sea-Bird for recalibration electronics end cap. The kit contains: or repair.
  • Page 64 Manual revision 027 Appendix II: Electronics Disassembly/Reassembly SBE 21 Reassembly Remove any water from the O-rings and mating surfaces with a lint-free Note: cloth or tissue. Inspect the O-rings and mating surfaces for dirt, nicks, and Before delivery, a desiccant package cuts.

  • Page 65: Appendix Iii: Command Summary

    1, 2, 3, or 4: Enable 0, 1, 2, 3, or 4 SV=x external voltages. x=1: output raw data in SBE 21 format (required for Seasave and/or SBE Data Processing). x=2: output raw data in SBE 16 format (custom).
  • Page 66 Display frequencies: raw temperature A/D counts, Processing. Manually raw conductivity frequency, temperature frequency Diagnostics entering DDb,e does not converted to match older SBE 21 (firmware version Outputs produce data with the 100 samples for < 4.0), and conductivity frequency converted to required header each test;...

  • Page 67: Appendix Iv: Af24173 Anti-Foulant Device

    Manual revision 027 Appendix IV: AF24173 Anti-Foulant Device SBE 21 Appendix IV: AF24173 Anti-Foulant Device AF24173 Anti-Foulant Devices supplied for user replacement are supplied in polyethylene bags displaying the following label: AF24173 ANTI-FOULANT DEVICE FOR USE ONLY IN SEA-BIRD ELECTRONICS' CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY SENSORS.
  • Page 68 Manual revision 027 Appendix IV: AF24173 Anti-Foulant Device SBE 21 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…………..…………………………..53.0% OTHER INGREDIENTS: ………………………………..47.0% Total………………………………………………………..
  • Page 69 Manual revision 027 Appendix IV: AF24173 Anti-Foulant Device SBE 21 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.
  • Page 70 Manual revision 027 Appendix IV: AF24173 Anti-Foulant Device SBE 21 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.

  • Page 71: Appendix V: Replacement Parts

    (Octyl Phenol Ethoxylate – (compatible with SBE 38) Reagent grade non-ionic cleaning solution for conductivity cell, supplied in 100% strength; dilute as directed) • 30457 Parker O-Lube (o-ring lubricant) • 50106 SBE 21 Spare O- Ring/Hardware Kit Continued on next page...
  • Page 72 • 30815 Parker 2-233E603-70 (for sensor/electronics module end cap) • 30200 Bolt, 3/8-16 x 3 3/4 Hex, stainless steel (square end cap to SBE 21 top plate) • 30210 Nut, 3/8-16 nylon stop, stainless steel (for 30200) 50106 Spare o-ring/hardware kit •...

  • Page 73: Appendix Vi: Manual Revision History

    Interface Box has new part number 90488 (AC powered version). 01/04 Add more description of how SBE 38 data is manipulated and processed as a pseudo frequency. 03/05 • Correct Conductivity calibration range to 2.6–6 S/m plus zero conductivity (previously showed 1.4–6 S/m plus zero conductivity, a relic of NRCC calibrations).
  • Page 74 Manual changes required for CE certification – cables longer than 3 meters to be installed inside earthed metal conduit. • Seasave & SBE Data Processing 7.20a: Add information about .xmlcon file. • Change Seasoft-Win32 to Seasoft V2, update .exe file name to SeasoftV2_date.exe.

  • Page 75: Index

    Manual revision 027 Index SBE 21 Index .con file · 37, 39, 46 Editing data files · 53 .xmlcon file · 37, 39, 46 Electrical installation · 17 Electronics · 62 disassembly/reassembly · 63 90158.1 Interface Box · 17 90488 Interface Box · 9, 18, 19, 39, 43 Format data ·...
  • Page 76 Revision history · 73 Sampling commands · 36 SBE 38 · 12, 32, 39 data format · 42 SBE Data Processing · 9, 13, 52 Schematic · 14 Seasave · 9, 13, 39, 47, 52 Seasoft · 9, 13 Seaterm · 9, 13, 19, 50 toolbar buttons ·...

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