Measurement-computing WaveBook rev.4.0 Manual de usuario Pagina 33

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WaveBook Users Manual
05-15-01
System Setup and Power Options 3-11
Battery options include the DBK30A, DBK34A, and other 10 to 30 VDC sources, such as car batteries. The
DBK30A provides 14 VDC and when fully-charged has a storage capacity of 3.4 A
hr; car batteries have
much higher capacities. The basic formula for battery life is:
Runtime (hr) = Battery capacity (A
hr) / Current load (A)
Battery life and performance depend on various factors including battery type, condition, charge
level, and ambient temperature. Be sure you consider these factors, especially when runtime is a
critical.
Three System Examples
Reference Note:
Although the preceding three examples make use of one or more TR-40U power adapters,
other power sources can be used. These options are discussed in the following section,
Power Supplies.
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