Rechargeable battery module (dbk30a), Charging the battery modules – Measurement Computing TempBook rev.3.0 User Manual

Page 14

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2-4 Installation, Configuration, and Calibration

11-16-00

TempBook User’s Manual

At power-on, the printer should behave normally and can be checked by issuing a PRINT SCREEN
command (or any other convenient method of checking the printer). (Installation of the software will be
necessary before the TempBook can perform any functions.)

Rechargeable Battery Module (DBK30A)

For portable applications where external AC or DC power is not available, the DBK30A rechargeable
nickel cadmium battery module can be used with the TempBook/66. This module is housed in a rugged
metal package that is the same size as the TempBook. It also comes with high-strength Velcro tabs that
allow convenient mounting underneath the TempBook/66.

The DBK30A is a revised combination of the DBK30 and DBK31 battery modules. There is an internal
slide switch which determines whether a DBK30A will act as a DBK30 or DBK31.

Note: Only the DBK30 mode should be used with the TempBook/66.

The DBK30 operating mode provides 14.4 VDC at 3.4 A-Hr. This setup can power the TempBook for 3 to
6 hours depending on the application. The battery module has built-in automatic battery-charging circuits,
which quickly and safely recharge the internal batteries when connected to the supplied AC adapters. The
only requirement for trouble-free operation is for the user to fully charge the battery module before
attempting to use it.

Charging the Battery Modules

The DBK30A package includes a charger for the intended line voltage (either 120 VAC or 230 VAC). To
charge the battery module, plug the output cable from the charger into the POWER IN connector on the
DBK30A, and plug the charger into an appropriate source of AC power (see figure). The charge cycle will
be initiated automatically, and the batteries will be fully charged after the charging cycle terminates.

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Connecting the Charger

To initiate another charge cycle, depress the START CHARGE momentary rocker-arm switch. Subsequent
charge cycles applied to a fully charged DBK30A will have no ill effect because the DBK30A will sense
the fully-charged status of the batteries and revert to the trickle-charge state within a few minutes.

There 3 LED status indicators on the DBK30A provide information on the charge process or external load
as noted in the table.

Power In

Illuminated when the charger is connected to a source of AC power and to the battery

module.

Battery Charging

Illuminated steadily while battery is in the high current (2-amp) charge mode.
Flashing briefly, one or two flashes at a time, when the internal batteries are fully charged.

Power Out

Illuminated steadily when an external TempBook product is connected and drawing current

from the battery modules.

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