Campbell Scientific CDM-VW300 Series Dynamic Vibrating-Wire Analyzer System - Manual (Page 41)

CDM-VW300 Series Dynamic Vibrating-Wire Analyzers
Write or obtain a CRBasic program for the datalogger. Reference Section
7.10, CRBasic Programming. Example programs are available in Appendix G,
CRBasic Program Library, and at
www.campbellsci.com/cdm-vw300-support .
7.3 Using the SC-CPI Interface
See Appendix B, SC-CPI Datalogger to CPI Interface.
7.4 Using Power Supplies
See Section 7.7.4, CDM-VW300 to Power Connection, for instructions and
precautions when connecting power.
7.4.1 CDM-VW300 Series Analyzer Power
The purchase of a CDM-VW300 series analyzer does not include a power
supply. A 12 Vdc power source must be specifically ordered or provided by
other means. Power supplies providing 9.6 to 32 Vdc, with a 200 mA or
greater current rating, can be used. Transformer pn 29796, which is illustrated
in FIGURE 7-3, is a 24 Vdc, 1.67 A wall charger. It can be purchased from
Campbell Scientific. Alternatively, if an adequate power supply used with a
Campbell Scientific datalogger is available, power for the CDM-VW300 series
analyzer can be drawn from the datalogger wiring panel.
FIGURE 7-3. 12 Vdc power transformer for laboratory-mode installation
The transformer sometimes used to provide charging power to a
Campbell Scientific PS100 power supply, or to a CR3000
datalogger with a battery base (Campbell Scientific pn 9591),
does not have the correct power output for the CDM-VW300. NOTE
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