Related Manuals for Campbell OBS-3
Summary of Contents for Campbell OBS-3
- Page 1 Interfacing the OBS-3 Turbidity Monitor with Campbell Scientific Dataloggers 10/05 C o p y r i g h t ( c ) 1 9 9 8 - 2 0 0 5 C a m p b e l l S c i e n t i f i c ,...
- Page 2 Disclaimer This manual concerns interfacing another manufacturer’s product with our dataloggers. We will attempt to provide accurate and up-to-date information in this manual. However, changes to another manufacturer’s product are beyond our control. Such changes may affect hookup, programming, and even safe use of the product.
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Page 3: Table Of Contents
3. Maintenance and Troubleshooting ......5 Figures 1. Wiring Diagram of OBS-3 Using Datalogger’s Switched 12 V....1 2. Wiring Diagram of OBS-3 without Using Switched 12 V ......2 3. Wiring Diagram for Connecting an OBS-3 to an External Relay and a Datalogger ..................2... - Page 4 This is a blank page.
- Page 5 CR1000, CR10(X), CR23X, and CR510 datalogger and describes programming a datalogger to read this probe. The standard output for the OBS-3 is 0 to 5 V, which may be used with the CR23X and CR1000. If response over 1000 FTU is needed for use with the CR10(X) or CR510 datalogger, order the probe with the optional 0 to 2500 mV output range.
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Page 6: Wiring Diagram For Connecting An Obs-3 To An External Relay
Interfacing the OBS-3 Turbidity Monitor with Campbell Scientific Dataloggers White CR510, CR500 CR510 Green & & Jumper Black FIGURE 2. Wiring Diagram of OBS-3 without Using Switched 12 V - Load + #7321 RELAY - Control + Black Datalogger White Green Jumper FIGURE 3. -
Page 7: Using Short Cut
2.1 Using Short Cut Short Cut is the easiest and typically the preferred method for programming the datalogger. With Short Cut, you choose the OBS-3 probe and your output preferences from a series of menus, then Short Cut creates a custom program and wiring diagram for you. - Page 8 Interfacing the OBS-3 Turbidity Monitor with Campbell Scientific Dataloggers ;Read millivolt signal 3: Volts (DIFF) (P2) 1: 1 Reps 2: 25 2500 mV 60 Hz Rejection Range ;CR23X is 25 ± 5000 mV 60 Hz Rejection Range 3: 1 DIFF Channel...
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Page 9: Crbasic Program Example
VoltDiff(FTU,1,mV5000,1,True,0,_60Hz,0.4,0) 'MULTIPLIER: (2000 FTU)/(5000 mV) = 0.4 PortSet(9,0) 'Call Data Tables and Store Data CallTable(Table1) CallTable(Table2) NextScan EndProg 3. Maintenance and Troubleshooting Follow the maintenance and troubleshooting procedures that are outlined in the OBS-3 technical manual provided by D & A Instrument Company. - Page 10 Interfacing the OBS-3 Turbidity Monitor with Campbell Scientific Dataloggers This is a blank page.
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- Page 12 Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)
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