SAFETY INSTRUCTIONS
DESCRIPTION
This unit is used to allow any 12 VDC / 24 VDC power supply to function as a DC Un-
interrupted Power Source (UPS). This unit is a passive device and acts only as an
interface between the power supply, the battery and the DC load. As long as the power
supply is operating normally, it will supply the load as well as float charge the battery. In
case the output of the power supply fails, the battery will start feeding the load immedi-
ately thus ensuring un-interrupted DC power to the load. The battery will start discharg-
ing. Once the output of the power supply is resumed, the power supply will take over the
load and will also re-charge the battery at its float voltage.
Precautions when working with batteries.
- Batteries contain very corrosive diluted sulphuric acid as electrolyte. Precautions
should be taken to prevent contact with skin, eyes or clothing
- Batteries generate hydrogen and oxygen during charging resulting in evolution of
explosive gas mixture. Care should be taken to ventilate the battery area and follow the
battery manufacturer’s recommendations.
- Never smoke or allow a spark or flame near the batteries.
- Use caution to reduce the risk of dropping a metal tool on the battery. It could spark or
short circuit the battery or other electrical parts and could cause an explosion.
- Remove metal items like rings, bracelets and watches when working with batteries. The
batteries can produce a short circuit current high enough to weld a ring or the like to
metal and thus cause a severe burn.
- If you need to remove a battery, always remove the ground terminal from the battery
first. Make sure that all the accessories are off so that you do not cause a spark
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