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OBS-3A Table of Contents

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1. Introduction...............................................................1-1

1.1 OBS Sensor........................................................................................ 1-2

1.2 Temperature and Optional Sensors .................................................... 1-2

2. Instrument Setup ......................................................2-1

2.1 Mounting Suggestions........................................................................ 2-1

2.2 Battery Installation............................................................................. 2-2

3. Operations.................................................................3-1

3.1 Software Installation .......................................................................... 3-1

3.2 Running OBS-3A Utility ................................................................... 3-1

3.3 Pull-Down Menus .............................................................................. 3-3

3.4 Communication Settings .................................................................... 3-3

3.5 Testing Sensors .................................................................................. 3-4

3.6 Water-Density and Barometric Corrections....................................... 3-6

3.7 Sample Statistics ................................................................................ 3-6

3.8 Definitions.......................................................................................... 3-6

3.9 Sampling Schedules........................................................................... 3-7

3.10 Sampling Modes .............................................................................. 3-8

3.11 Surveying ......................................................................................... 3-9

3.12 Cyclic Sampling............................................................................. 3-10

3.13 Scheduled Sampling....................................................................... 3-11

3.14 Setpoint Sampling.......................................................................... 3-11

3.15 Data Retrieval ................................................................................ 3-12

3.16 Shutdown ....................................................................................... 3-13

3.17 Graphing and Printing.................................................................... 3-13

3.18 Excel Spreadsheets......................................................................... 3-14

3.19 Erasing Data Memory .................................................................... 3-15

4. Troubleshooting .......................................................4-1

5. Maintenance ..............................................................5-1

5.1 OBS Sensor........................................................................................ 5-1

5.2 Pressure Sensor .................................................................................. 5-1

5.3 Conductivity Sensor........................................................................... 5-1

5.4 Batteries ............................................................................................. 5-2

5.5 Pressure Housing ............................................................................... 5-2

5.6 Antifoulant Coatings .......................................................................... 5-3

5.7 User-serviceable Parts........................................................................ 5-3

6. Calibration .................................................................6-1

6.1 Turbidity ............................................................................................ 6-1

6.1.1 Equipment and Materials.......................................................... 6-1

6.1.2 Preparation ............................................................................... 6-2

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Campbell OBS-3A Especificaciones Pagina 5