Campbell Scientific CDM-VW300 Series Dynamic Vibrating-Wire Analyzer System - Manual (Page 30)

CDM-VW300 Series Dynamic Vibrating-Wire Analyzers
Rainflow | Number of Amp
Bins RF_AmpBins
Rainflow | Low Limit RF_LowLim
Rainflow | High Limit RF_HighLim
Rainflow | Minimum Change RF_Hyst
RF_Form
Rainflow | Rainflow Form |
reset list A
Rainflow | Rainflow Form |
total list B
Rainflow | Rainflow Form |
form list C
1 Scan rate is automatically set based on the datalogger CRBasic Scan() instruction
Interval parameter. Set the Interval parameter such that the desired CDM-VW300
scan rate is achieved. Relationship between Scan Rate and Interval is:
CRBasic Scan() instruction Interval = (1 / DVWTool Scan Rate) * 1000
3. When the laboratory-mode installation has been performed on all sensors,
click Disconnect in the DVWTool window. Disconnect or turn off power
to the CDM-VW300.
4. Assemble the datalogger and power supply using FIGURE 6-7, Field data-
acquisition system, as a guide. Do not turn power on until the system is
completely assembled.
5. A reliable data-acquisition system requires a reliable power supply. CDM-
VW300 analyzers consume more power than do many Campbell Scientific
products, so the power supplies often used with other data-acquisition
systems may not be adequate. Consult Section 7.4, Using Power Supplies,
for sizing guidance. For large systems, consult with a Campbell Scientific
application engineer.
6. The following figure illustrates the connections between the datalogger,
SC-CPI interface, and CDM-VW300. With this figure as a reference,
work through the following procedure.
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