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Troubleshooting – Campbell Scientific CDM-VW300 Series Dynamic Vibrating-Wire Analyzer System User Manual

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Table of Contents

7.2

Using the Datalogger......................................................................... 30

7.3

Using the SC-CPI Interface ............................................................... 31

7.4

Using Power Supplies........................................................................ 31

7.4.1

CDM-VW300 Series Analyzer Power ....................................... 31

7.4.2

Data-Acquisition System Power................................................. 32

7.5

Configuring the CDM-VW300 Analyzer .......................................... 32

7.5.1

Device Name .............................................................................. 34

7.5.2

CPI Bus Speed............................................................................ 34

7.5.3

Operating System Version.......................................................... 35

7.5.4

Operating System Date............................................................... 35

7.5.5

Analyzer Serial Number............................................................. 35

7.5.6

Display Rate ............................................................................... 35

7.5.7

Dynamic Sample Rate................................................................ 35

7.5.8

Device Type ............................................................................... 35

7.5.9

CPI Bus Address ........................................................................ 35

7.5.10

System Options .......................................................................... 35

7.5.11

Channels Enabled....................................................................... 36

7.5.12

Desired Resonant Amplitude...................................................... 36

7.5.13

Minimum- and Maximum Cut-Off Frequencies ........................ 36

7.5.14

Frequency-Output Format .......................................................... 36

7.5.15

Multipliers and Offsets............................................................... 36

7.5.16

Steinhart-Hart Coefficients......................................................... 36

7.5.17

Rainflow-Histogram Output Configurations .............................. 36

7.6

Sensor Selection ................................................................................ 37

7.6.1

Frequency Considerations .......................................................... 37

7.6.2

Noise Performance ..................................................................... 37

7.7

System Connections .......................................................................... 37

7.7.1

CDM-VW300 to PC Connection ............................................... 38

7.7.2

CDM-VW300 to Sensor Connection.......................................... 38

7.7.3

CDM-VW300 to SC-CPI Connection ........................................ 40

7.7.4

CDM-VW300 to Power Connection .......................................... 42

7.7.5

Earth Ground Connections ......................................................... 44

7.7.6

Communication Connections ..................................................... 44

7.7.6.1

SC-CPI to CPI Bus Connection....................................... 44

7.7.6.2

Datalogger to SC-CPI Connection................................... 44

7.7.7

Maximum Number of Analyzers on a Datalogger ..................... 45

7.8

Operating System .............................................................................. 46

7.9

Power-Up Sequence .......................................................................... 46

7.10

CRBasic Programming...................................................................... 47

7.10.1

Writing Programs ....................................................................... 47

7.10.2

Sending Programs to the Datalogger.......................................... 48

7.11

System Adjustments .......................................................................... 49

7.11.1

Frequency Range........................................................................ 49

7.12

System Validation ............................................................................. 49

7.12.1

Sensor Validation ....................................................................... 49

7.12.2

Monitoring System Performance................................................ 49

7.12.2.1

Monitoring with DVWTool Software.............................. 52

7.12.2.1.1

Fault Detection...................................................... 52

8.

Troubleshooting........................................................53

8.1

Connections....................................................................................... 53

8.2

Power................................................................................................. 53

8.3

Isolating Components........................................................................ 53

8.4

Filtering Harmonics........................................................................... 54

8.5

Diagnostic Outputs ............................................................................ 54

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