Measurement Computing WaveBook rev.3.0 - Manual (Page 88)

4-4 System Power & Assembly WaveBook User’s Manual
DBK30A - Rechargeable Battery Module
DBK30A Front Panel
DBK30A contains two rechargeable nickel-cadmium batteries for use with WaveBook, expansion WBK
modules, and transducers. DBK30A shares the same base dimensions as other WaveBook products,
allowing for convenient stacking. Note that stacking can be easily accomplished with the included splice
plates, discussed on page 4-10.
The power adapter (included) converts AC power to 24 VDC for charging DBK30A’s two battery packs.
Automatic charging circuits recharge the internal batteries quickly and safely. The charged battery runtime
depends on the current load and mode of operation.
An internal slide switch (SW2) determines the unit’s mode. The two modes are:
• 14 VDC Mode (default)
• 28 VDC Mode.
You should check the power requirements of each component in your system, and then
verify that the power source can provide sufficient power to meet your runtime
requirements.
Fully charge DBK30A’s batteries before use.
14 VDC Mode (default)
This mode provides 14 VDC for 3.4 A-hr. The typical battery runtime is from 3 to 6 hours depending on the
load. Unless 28 VDC is required, the 14 VDC mode should be used in WaveBook and WBK applications,
Unless you need 28 V, leave the unit in the 14 VDC mode. Use of the 28 VDC mode results in
a lower runtime, as only one battery pack can be used for 14 VDC. When in the 14 VDC mode,
both packs are used in parallel, resulting in a longer runtime for the same application.