Download SedEvent Event-Triggered Automated Grab Sampling System

SedEvent User Manual
Table of Figures
Table of Contents
Table of Figures ..................................................................................................................................... v
Part I
Overview................................................................................................................ 1
Chapter 1
Introduction ................................................................................................................... 2
1.1 What is the SedEvent turbidity threshold sampling system? ........................................................................... 3
1.2 Who this manual is for ...................................................................................................................................................... 4
1.3 Finding what you need in the manual ....................................................................................................................... 4
1.4 Water quality and Total Maximum Daily Loads (TMDL) ...................................................................................... 4
1.5 The benefits of automated data collection .............................................................................................................. 5
1.6 Turbidity threshold sampling and how it works .................................................................................................... 6
1.7 Suspended sediment monitoring flowchart ........................................................................................................... 7
Chapter 2
System overview ............................................................................................................ 8
2.1 Parts of the system ............................................................................................................................................................ 9
2.2 Instrumentation and sensors .......................................................................................................................................10
2.3 Laboratory analysis ..........................................................................................................................................................15
2.4 Turbidity threshold sampling algorithm overview .............................................................................................15
2.5 StreamTrac software .......................................................................................................................................................16
Part II
Details .................................................................................................................. 17
Chapter 3
Preparing for the field ................................................................................................. 18
3.1 Receiving your system ...................................................................................................................................................19
3.2 Verifying system function in the laboratory ..........................................................................................................19
3.3 Optional computer and software ..............................................................................................................................25
3.4 Checklists and forms .......................................................................................................................................................25
Chapter 4
Site selection and deployment hardware .................................................................. 31
4.1 Introduction .......................................................................................................................................................................32
4.2 Site selection ......................................................................................................................................................................32
4.3 Turbidity sensor and water sampling deployment hardware ........................................................................32
4.4 Stage sensor deployment .............................................................................................................................................38
4.5 Stream gauging, flow measurement, and stage-discharge rating ...............................................................40
Chapter 5
Installing the system at the site .................................................................................. 42
5.1 Arrival at the site ...............................................................................................................................................................44
5.2 Unpacking ...........................................................................................................................................................................44
5.3 Streamside enclosure .....................................................................................................................................................44
5.4 Datalogger ..........................................................................................................................................................................46
5.5 Telemetry ............................................................................................................................................................................47
5.6 ISCO auto-sampler ...........................................................................................................................................................48
5.7 Turbidity sensor ................................................................................................................................................................51
5.8 Stage sensor .......................................................................................................................................................................51
5.9 Rain gauge ..........................................................................................................................................................................51
5.10 Power system .....................................................................................................................................................................53
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