Measurement-computing WaveBook rev.4.0 Uživatelský manuál Strana 38

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3-16 System Setup and Power Options
05-15-01
WaveBook Users Manual
Three LEDs on the DBK30A provide status information on the charging process or the external load.
LED Indicators & Descriptions
POWER IN
Indicates the charger is connected to a source of AC power and to the battery module.
BATTERY CHARGING
Steady Light - Indicates the battery is in the high-current (2 A) charge mode.
Flashing - One or two flashes at a time indicates the batteries are fully charged.
POWER OUT
Indicates power is flowing out to an external device, such as a WaveBook product.
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Periodically, fully discharge the DBK30A to inhibit lazy chemistry (memory) in the
nickel-cadmium cells. To manually discharge a battery pack, connect a WaveBook to
the pack and leave it powered-on until the indicator lights go out.
Use While Charging. Both operating modes are capable of powering the WaveBook products while being
charged; however, the charging current is reduced, and charging time is increased. If AC power is
interrupted, a new charge cycle will begin automatically when AC power returns.
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Even with the AC adapter, the batteries will eventually discharge under a WaveBook
operating load. Charging DOES NOT BEGIN AUTOMATICALLY (except on power-
up). You must manually initiate the next charge cycle. Do not expect a WaveBook
powered by a DBK30A to operate as an uninterruptable power supply.
Stacking Modules
Stacking can be accomplished with splice plates, as discussed earlier in the chapter.
DBK30A Battery Module - Specifications
Name/Function: Rechargeable Battery Module
Battery Type
: Nickel-cadmium
Number of Battery Packs
: 2
Battery Pack Configuration
: 12 series-connected sub-C
cells
Output Voltage
: 14.4 V or 28.8 V (depending on the
selected mode)
Output Fuses
: 2 A
Battery Amp-Hours
: 3.4 A-hr (1.7 A-hr/pack)
Charge Termination
: Peak detection
Charge Time
: 2 hours
Charging Voltage from Supplied AC Adapter
: 22 to 26
VDC @ 2 A
AC Adapter Input
: 95 to 265 VAC @ 47 to 63 Hz
Size
: 221 mm × 285 mm × 35 mm
(11" × 8-1/2" × 1-3/8")
Weight
: 2.4 kg (6 lb)
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