ESCO Technologies ETS-Lindgren HI-6006, User Manual

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ets-lindgren.com Series H-491198-48 Battery Charger 81
Appendix C: Series H-491198-48 Battery Charger
For NiMH Batteries
Note: The HI-6023 and HI-6006 probes contain a Nickel-Metal
Hydride (NiMH) battery, and use the Series H-491198-48 Battery
Charger.
Safety Precautions
Caution: Before operating the Series H-491198-48 Battery
Charger, see Laser Safety Considerations on page viii.
Introduction
The H-491198-48 Nickel-Metal Hydride
(NiMH) Battery Charger is a dual power
source battery charger. It charges 4.8 volt
25 mA NiMH batteries and is powered by
85-264 VAC line power or 12.5 VDC. The
H-491198-48 Battery Charger uses
a -(dV)/(dT) negative delta V technique to
determine when the battery is fully charged,
which is typically two hours. With this
technique, the charge state of the battery
has no effect other than shortening the
charge time.
Housed in a rugged enclosure, power enters the battery charger through a power
entry module, which contains the fuses, or an optional cigarette lighter plug
adapter. The front face of the battery charger displays LEDs that provide the
operating status. The battery charger connects to the device being charged
through a short cord terminated with a power jack.
An integrated circuit within the battery charger monitors the battery voltage and
controls the charging functions according to the charge state of the battery.