Sea-Bird Electronics SBE 38 Dokumentacja Strona 215
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1/14/2012
37
Effect of Conductivity
Ce
ll Thermal Mass on
Computed Salinity Values
• Glass conductivity cell stores heat
• A warm cell warms water moving through it
• A cold cell cools water moving through it
• This causes water in cell to be a different temperature
than thermometer measured a moment earlier
• All conductivity cells experience this
– SBE can correct for it, because of controlled flow
Page 215 of 258
- Module 0: 1
- Bird Electronics 1
- SBE 9-11 plus CTD Boot Camp 1
- Introductions 2
- At the end of this course 3
- will have covered 3
- Sea-Bird Resources 4
- Sea-Bird Website 5
- Application Notes 6
- Updating Software 8
- Publicat 9
- Terms and Definitions 10
- Terminology 11
- Reporting Temperature 12
- Reporting Salinity 13
- SBEDataProcessing Software 14
- Module 1: 15
- Hardware Setup 15
- Configuration 15
- SBE 9 -11 Plu 16
- Profiling CTD System 16
- Real-Time me 17
- SBE 9plus / 11 18
- Water Sampler Channel 19
- SBE 9plus Frequency Counters 20
- SBE 9plus Voltage Channels 21
- End Caps 22
- Core Sensors 23
- The SBE 43 is 24
- Digiquartz Pressure Sensors 25
- E 9+ CTDs 25
- SBE 17plus V2: 26
- Cabling the 9plus to the 11 27
- What is a Slip Ring? 29
- Clean Data Collection 30
- SBE 9+ CTD Sample Scheme 31
- Plumbing for Success 32
- Coupling T and C 33
- This TC Duct is disconnected 34
- Y Fitting Detail 35
- Vinyl Tubing 35
- Air release valve 35
- Bernoulli Balanced 36
- Horizontal Mount 38
- SBE 9+ CTD Mounting on a 39
- Make a Neat 40
- Carousel and ECO 41
- Maintenance 41
- How Do I Make the 42
- Mating Habits of 43
- When Underwater 44
- Module 2 45
- SEASAVE Data Acquisition 45
- Software 45
- Real-Time Data — Seasave 46
- Setup Parameters Stored in 47
- Seasave Instrument 48
- To modify, right click 50
- the display you 50
- Archived Data Dialog 51
- Pressure 0-1200 dbar 52
- X2 Conductivity 0-6 S/m 52
- X3 Salinity 26-36 psu 52
- Configure Inputs 53
- Configure Outputs 53
- Serial Ports 54
- Real-Time Water Sampling 55
- TCP/IP Ports 56
- Miscellaneous 57
- Serial Data Output 58
- Shared File Output 59
- Mark Variable Selection 60
- TCP/IP Output 61
- SBE 11plus Alarms 62
- SBE 14 Remote Display 63
- Remote Display Cabling and 64
- PC Alarms 65
- Cast Headers 66
- Saving Your Setup 67
- Acquiring Real-Time Data 68
- Depends on Setup 69
- – *END* flags end of header 70
- Mark Files: .mrk 71
- Bottle Data File: .bl 72
- Cross-Check 73
- Inspect Data Regularly 73
- Page 74 of 258 74
- Module 3: 75
- Troubleshooting: The Basics 76
- SBE 9/11plus System Diagram 77
- Note about 9/11plus Data Flow 78
- SBE 11plus Deck Unit 79
- • Could be the sensor 80
- • Could be the cable 80
- Page 81 of 258 81
- • Check the sensor 82
- • Check the cable 82
- • Check the counter card 82
- Pump Not Working 83
- Pump Not Working (continued) 84
- Modulo Errors 86
- • 9+ works fine on test cable 87
- How Do I Know It Isn’t 88
- Why Can’t I Use the Ohm 89
- Setting on My 89
- Multimeter? 89
- SBE 9/11plus Communication 90
- SBE 11plus Fish/Tape Switch 91
- Communications 92
- SBE 11plus D 93
- Main power fuse 94
- • Sea cable fuse 94
- NMEA Interface 95
- Connecting the GPS into the 96
- SBE 11plus Box 96
- deck unit 97
- Capture Some Data 98
- Check screws for 99
- Page 100 of 258 100
- NMEA Box Troubleshooting 101
- ASIDE: Troubleshooting TSG 102
- E 45 / 38 / NMEA Box 102
- Troubleshooting I/O Cable 103
- Troubleshooting Data Problems 104
- Data Scan Mismatch 105
- Troubleshooting Activity 106
- Page 108 of 258 108
- Module 4: 109
- Best Practices 109
- Best Practices: 110
- Water Samples 110
- Sensor Components 111
- Ideal Sensor vs. What you get 112
- 1/14/2012 113
- Page 113 of 258 113
- Page 114 of 258 114
- Conductivity Sensors Measure 115
- Resistance of 115
- – Immune to proximity errors 116
- Page 117 of 258 117
- SBE 43 Sensor Response 118
- Pressure 119
- Page 120 of 258 120
- Drift In SBE Sensors 121
- Example of Offset Drift 122
- <0.000625 deg C / Year 122
- 8 Year Calibration History 123
- Example of Slope Drift 124
- E 43 Dissolved O 125
- 4 Calibration Bath 126
- Calibration 126
- Sea-Bird Calibration Bath 127
- Example SBE 3 128
- Pressure Sensor Calibrations 129
- For You to Do 130
- Track the Drift of SBE 9pl 131
- Pressure Offset with Time 131
- How to Measure Pressure 132
- Barometer 132
- Entering Pressure Offset in 133
- Profiling and Water Sampling 134
- Soaking Before Profiling 135
- Deploying in Very Cold Places 136
- Page 137 of 258 137
- Page 138 of 258 138
- Optimize Sample Rate and 139
- Page 140 of 258 140
- Profile showing 141
- Pump On, reducing effect of 142
- Page 143 of 258 143
- Page 144 of 258 144
- CTD measurements 145
- Page 146 of 258 146
- Page 147 of 258 147
- Page 148 of 258 148
- Module 5: 149
- Basic Maintenance of 149
- Sea-Bird Equipment 149
- Annual Preventive Maintenance 150
- Re-Lubricating Hardware 151
- Hardware Lubrication 152
- Handling Opened Instruments 153
- – SBE 9+ pressure housing 154
- Page 155 of 258 155
- Page 156 of 258 156
- Open the Instrument 157
- Cleaning O-Ring Surfaces 158
- – Perform the fee 159
- Foreign MatterForeign Matter 160
- Flow MarksFlow Marks 160
- Proper O-Ring Lubrication 161
- Applying the Lubricant 162
- Lubricate the Housing 163
- Closing the Instrument 164
- Pump Maintenance 165
- Pump Impeller 166
- Page 167 of 258 167
- Emergency Maintenance 168
- Page 169 of 258 169
- Page 170 of 258 170
- Connector Installation 171
- Install Connector O-Ring 172
- Install Connector 173
- Incorrect use of LocTite® 175
- Excessive Use of LocTite® 176
- Final Connector Tightening 177
- Torque Specifications 178
- Recommended Processing Steps 179
- After Data Collection 180
- Extracting CTD Data with 181
- Specifying How Much Data Per 182
- .ros file 183
- Bottle Summary 184
- Activity: Create .ros a 186
- Example of Converted Data 187
- Page 188 of 258 188
- Page 189 of 258 189
- Brief Overview of Data 190
- Troubleshooting 190
- Description of Key 191
- EDataProcessing Modules 191
- Page 192 of 258 192
- Options in DATCNV: 193
- Page 194 of 258 194
- Dissolved O 195
- Activity: Prac 196
- Conversion on Raw Data File 196
- Page 197 of 258 197
- Page 198 of 258 198
- Page 199 of 258 199
- Page 200 of 258 200
- Plot Modulo Error (11) 201
- Plot against Time 202
- Filtering Converted Data 203
- Derived Dependent Quantities 204
- The Challenge: 205
- Data Misalignment in 206
- Examples of Lags and Leads 207
- Computed Salinity 207
- SBE 9+ Ducted Data Aligned 208
- Manipulating Data to 209
- Remove Misalignment 209
- Post Processing 209
- Page 210 of 258 210
- Alignment 211
- Activity: Align DO Data 213
- Waterfall Plot 214
- Effect of Conductivity 215
- Computed Salinity Values 215
- Page 216 of 258 216
- Cell Thermal Mass Example 217
- Up and Down Casts 217
- Removing the Effect of 218
- Conductivity Cell 218
- Thermal Mass 218
- SBE 9+ Salinity 219
- Editing non-Oceanic 220
- Distinguishing between 221
- Ship Heave Effects 222
- Removing Package-Induced 223
- Data Artifacts 223
- Activity: Remove Loops 224
- Removing Package 225
- Loop Edit 225
- Page 226 of 258 226
- Bin Averaging 227
- Bin Average: Output Data 228
- (salinity) 229
- Page 230 of 258 230
- Sensor Tracking and 231
- In-Situ Validation Techniques 231
- Page 232 of 258 232
- Spare parts and tools 233
- Pre-Cruise Equipment Checks 234
- What should be checked? 235
- Check Connectors 236
- Check Cabling 237
- – Clean with Kimwipes or 238
- – SBE recommends Dow 238
- Corning® DC4 for 238
- Proper Installation Technique 239
- Check the External Hardware 240
- – Clean/replace as necessary 241
- – Use a piece of 26 awg wire 241
- – Re-fill as required 242
- Verify the Functionality 243
- Record Some Data 244
- 1/16/2012 245
- Page 245 of 258 245
- Tools & Spare Parts 246
- Page 247 of 258 247
- Spare Parts 248
- Materials 249
- Page 250 of 258 250
- First Cast of the Day 251
- After / Between Casts 252
- SBE 32 Carousel 253
- Flooded Instruments 254
- • Leaking water 255
- Flooded 256
- Post-Cruise Maintenance 257
- After Cleaning 258
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