Campbell Scientific OBS-3+ and OBS300 Suspended Solids and Turbidity Monitors - Manual (Page 7)

Table of Contents
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1. Introduction ................................................................. 1
2. Cautionary Statements ............................................... 1
3. Initial Inspection ......................................................... 1
4. Quickstart .................................................................... 2
4.1 Preparation for Use .............................................................................. 2
4.2 Use SCWin to Program Datalogger and Generate Wiring Diagram .... 2
5. Overview ...................................................................... 5
5.1 Applications ......................................................................................... 5
5.2 Turbidity .............................................................................................. 5
5.3 Design Details ...................................................................................... 6
5.4 Measurement Details ............................................................................ 7
6. Specifications ............................................................. 8
7. Installation ................................................................... 9
7.1 Pre-Deployment Tests .......................................................................... 9
7.2 Mounting Considerations ................................................................... 10
7.2.1 Siting ........................................................................................... 10
7.2.2 Mounting Options ....................................................................... 10
7.2.2.1 PVC Pipe .......................................................................... 10
7.2.2.2 Cable Ties or Hose Clamps .............................................. 10
7.3 Wiring to Datalogger ......................................................................... 10
7.4 Datalogger Programming ................................................................... 12
7.5 Calibration Certificate ........................................................................ 12
8. Calibration ................................................................. 14
8.1 Turbidity ............................................................................................ 14
8.1.1 Materials and Equipment ............................................................ 16
8.1.2 Setup ........................................................................................... 17
8.1.3 Procedure .................................................................................... 17
8.2 Sediment ............................................................................................ 18
8.2.1 Dry-sediment Calibration ............................................................ 18
8.2.2 Wet-sediment Calibration ........................................................... 18
8.2.3 In situ Calibration ....................................................................... 19
8.2.3.1 Materials and Equipment .................................................. 19
8.2.3.2 Setup ................................................................................. 19
8.2.3.3 Procedure .......................................................................... 20
9. Troubleshooting........................................................ 21
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