Campbell CDM-VW300 Series Instrukcja Obsługi Pobierz pdf (Strona 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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Campbell CDM-VW300 Series Instrukcja Obsługi Strona 42