Models 914 And 924 Battery-Backed Power Packs - Teledyne 913 Installation And Operation Manual

4.5 Models 914 and 924
Battery-Backed Power
Packs
Figure 4-4 Model 914 Battery-Backed Power Pack
Section 4 Isco Battery Chargers and Power Packs
The Battery-Backed Power Packs contain a 5-ampere switching
regulator and a 1.2 ampere-hour, 12-volt nickel-cadmium battery
as a backup power source. There is no external charging circuit;
the charger is connected internally to the standby battery.
The Battery-Backed Power Packs provide uninterruptible
switching from AC to the internal battery in the event of power
failure. Use this power pack where power outages are frequent,
but of short-term duration and where you cannot tolerate the
loss of data during a power failure.
The internal battery has about 30% the capacity of a standard
nickel-cadmium battery, so you should not attempt to use it as a
combination of a standard power pack and battery. Do not use
this product where power failures are both frequent and long.
The limited capacity of the internal battery may run out before
power is restored, or outages may be so frequent that the battery
does not have enough time to recharge.
The Battery-Backed Power Pack is available in both nominal
120-volt (Model 914) and 240-volt (Model 924) versions.
Power Products Guide
4-4