Campbell Scientific OBS300 OBS-3+ and OBS300 Suspended Solids and Turbidity Mo - Page 9

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Table of Contents 8-3. 8-4. 11-1. 11-2. 11-3. 11-4. 11-5. C-1. D-1. OBS-3+ (left) and OBS300 (right) in 500-NTU AMCO Clear® turbidity standard in 100-mm black polyethylene calibration cup 18 Portable sediment suspender (left) and OBS beam orientation in suspender tub (right 20 Normalized OBS sensitivity as a function of grain diameter 23 The apparent change in turbidity resulting from disaggregation methods 24 Relative scattering intensities of grain shapes 25 Response of an OBS sensor to a wide range of SSC 26 Infrared reflectivity of minerals as a function of 10-Munzell value 27 Pin assignments for MCBH and MCIL wet-pluggable connectors ..C-1 Wiring diagram for connecting an OBS sensor to an external relay and a datalogger D-1 Tables 7-1. Connection to Campbell Scientific Dataloggers 11 8-1. SDVB NTU values for turbidity calibrations in standard low ranges 15 8-2. Change in NTU value resulting from one hour of evaporation1 of SDVB standard; in other words, loss of water but not particles. ....16 9-1. Troubleshooting Chart 22 C-1. Pin numbers, electrical functions and wire color codes for OBS sensor bulkhead connectors C-2 iii

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Table of Contents
8-3.
OBS-3+ (left) and OBS300 (right) in 500-NTU AMCO Clear
®
turbidity standard in 100-mm black polyethylene calibration
cup
..................................................................................................
18
8-4.
Portable sediment suspender (left) and OBS beam orientation in
suspender tub (right)
.......................................................................
20
11-1.
Normalized OBS sensitivity as a function of grain diameter
.............
23
11-2.
The apparent change in turbidity resulting from disaggregation
methods
..........................................................................................
24
11-3.
Relative scattering intensities of grain shapes
....................................
25
11-4.
Response of an OBS sensor to a wide range of SSC
..........................
26
11-5.
Infrared reflectivity of minerals as a function of 10-Munzell
value
...............................................................................................
27
C-1.
Pin assignments for MCBH and MCIL wet-pluggable connectors .. C-1
D-1.
Wiring diagram for connecting an OBS sensor to an external
relay and a datalogger
..................................................................
D-1
Tables
7-1.
Connection to Campbell Scientific Dataloggers
................................
11
8-1.
SDVB NTU values for turbidity calibrations in standard low
ranges
..............................................................................................
15
8-2.
Change in NTU value resulting from one hour of evaporation
1
of
SDVB standard; in other words, loss of water but not particles.
....
16
9-1.
Troubleshooting Chart
.......................................................................
22
C-1.
Pin numbers, electrical functions and wire color codes for OBS
sensor bulkhead connectors.
.........................................................
C-2
iii