Campbell-scientific OBS500 Smart Turbidity Meter with ClearSensor Tech Manual do Utilizador descarregar pdf (Página 9)

Table of Contents

7-3. Settings Editor screen ......................................................................... 16

7-4. Terminal Emulator ............................................................................. 21

7-5. Normalized response of OBS500 to AMCO Clear

turbidity.

The inset shows the response function of a turbidity sensor to

high-sediment concentrations. ........................................................ 23

7-6. Position of OBS500 in clean tap water in big black tub ..................... 25

7-7. OBS500 in 500-TU AMCO Clear

turbidity standard in 100-mm

black polyethylene calibration cup ................................................. 26

7-8. Portable Sediment Suspender (left) and OBS beam orientation in

suspender tub (right) ....................................................................... 28

7-9. Remove the screw .............................................................................. 31

7-10. Insert screwdriver and rotate clockwise ............................................. 32

7-11. Shutter disassembled .......................................................................... 32

7-12. Shutter components ............................................................................ 32

8-1. Normalized sensitivity as a function of grain diameter ...................... 33

8-2. The apparent change in turbidity resulting from disaggregation

methods .......................................................................................... 34

8-3. Relative scattering intensities of grain shapes .................................... 35

8-4. Response of an OBS sensor to a wide range of SSC .......................... 36

8-5. Infrared reflectivity of minerals as a function of 10-Munzell Value .. 37

9-1. DevConfig, Send OS .......................................................................... 39

Tables

7-1. Factory Settings .................................................................................. 13

7-2. RS-232 Terminal Commands ............................................................. 15

7-3. OBS500 Connector Pin-Out ............................................................... 17

7-4. SDI-12 Wiring .................................................................................... 17

7-5. RS-232 Wiring ................................................................................... 18

7-6. Analog 0-5 Volt Wiring ..................................................................... 18

7-7. SDI-12 and RS-232 Measurement Commands .................................. 19

7-8. RS-232 Settings .................................................................................. 22

7-9. Calibration Materials and Volumes .................................................... 24

7-10. Change in TU value resulting from one hour of evaporation of

SDVB standard, i.e., loss of water but not particles. ...................... 25

10-1. Troubleshooting Chart. ...................................................................... 40

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Campbell-scientific OBS500 Smart Turbidity Meter with ClearSensor Tech Manual do Utilizador Página 9