Measurement Computing WaveBook rev.5.3 - Manual (Page 58)

Power Out. The pinout at the right applies to the
two POWER OUT DIN5 connectors. The DBK34A
package includes a short connecting cable to
connect to the powered device. This cable connects
the POWER OUT connector on the DBK34A and
to the POWER IN connector on the WaveBook,
LogBook, DaqBook, or WBK/DBK module.
DIN5 Power Output Connector (2 per DBK34A)
Indicators. Three front-panel LED indicators provide power and charging status information.
LED Indicators & Descriptions
MAIN POWER Lights when the DBK34A power input is connected to a source of at least 12.25 VDC
CHARGING Lights when the internal batteries are being fast-charged at a rate of 0.1 amp/cell or greater.
DISCHARGING Lights when internal batteries (or auxiliary batteries) are discharging at a rate of 0.25A or greater.
Runtime. Approximate runtime under various loads can be computed from the storage capacity
(5 A-hr in 12 V mode; 2.5 A-hr in 24 V mode) and the load (main unit and other DBKs).
The following Load Wattage vs. Hours graph is for a typical new battery that is fully charged.
Charging: In general, lead-acid batteries [and related Gel-Packs] require charging at 120% of drain energy
(e.g., the 5 A-hr DBK34A requires a charge equal to or greater than 6 A-hr). Charging times vary; but 4 to
5 hours at 14 V is typical for a completely discharged battery; after which, charging may continue
indefinitely.
Note that 16 to 18 VDC at the power input is required for optimal charging.
CAUTION
Voltage applied to a DBK34A must not exceed 30 VDC.
Environmental Concerns
CAUTION
DBK34A Gel-Pack batteries contain toxic materials (Pb and H
2
SO
4
). At the end of
the battery life cycle (typically after 5 to 10 years of use), the Gel-Packs must be
recycled or properly disposed of.
2-38 System Setup and Power Options 979194 WaveBook User’s Manual