Campbell Scientific CDM-VW300 Series Dynamic Vibrating-Wire Analyzer System - Manual (Page 42)

CDM-VW300 Series Dynamic Vibrating-Wire Analyzers
7.4.2 Data-Acquisition System Power
Power supply requirements will vary depending on system configuration and
location. The following power supplies are typically adequate to power a data-
acquisition system consisting of one datalogger, one CDM-VW300, and the
SC-CPI interface:
• PS100 connected to ac
• PS200 connected to ac
• CR3000 rechargeable base connected to ac
CR3000 with alkaline base is NOT an adequate power supply
and will fail shortly after deployment. NOTE
A solar powered system requires careful planning including a power budget.
For example, to power a data-acquisition system consisting of a CR3000
datalogger, an SC-CPI interface, and a CDM-VW300 series analyzer, the
following battery and solar panel specifications are required to operate the
system year-round in a remote installation in northern Utah using standard
silicon cell solar panels, lead-acid rechargeable batteries, and industry accepted
reserve margins:
• CDM-VW300, two channels enabled
o 60 watts of solar panel capacity
o 91 ampere-hours of battery reserve
• CDM-VW305, eight channels enabled
o 84 watts of solar panel capacity
o 130 ampere-hours of battery reserve.
Many applications will require the use of several analyzers. A carefully
considered power budget in these applications is essential to ensuring system
reliability and data continuity. Contact a Campbell Scientific application
engineer for assistance in configuring an adequate power supply.
7.5 Configuring the CDM-VW300 Analyzer
CDM-VW300 series analyzers must be configured by the user before sensor
measurement will be successful. Configuration can be done using DVWTool or
DevConfig software or a datalogger CRBasic program. See Section 7.1, PC
Based Tools, for more information about the software. See Section 7.10,
CRBasic Programming, for more information about using the datalogger.
IMPORTANT — Do not connect the CDM-VW300 analyzer or SC-CPI
interface to a PC until AFTER installing DVWTool 1.0 or later or DevConfig
2.04 or later. Consult Section 7.1.1, Software and Driver Installation, for more
information.
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