About The Power Supply - Sharp EL-945T Operation Manual

The OHP panel controller included with this product requires two kinds of batteries, one for its
operation and the other for its memory backup. Please install all four included batteries before the
first usage. Please refer to the EL-9450 operation manual to find out how to install the operation
batteries. Note that the memory backup battery has been installed at the factory at the time of
shipment.
When the batteries need to be replaced
• The following conditions indicate the main batteries are depleted.
1) Nothing is displayed even if the O key is pressed.
2) The power suddenly goes off in the middle of operation.
3) The batteries replacement message is displayed.
Replace the batteries immediately if any one of these conditions occurs.
• Replace the memory backup battery at least once every 5 years. Record the date the memory
backup battery was replaced to estimate the next replacement date.
When nothing is displayed even though the O key is pressed or if the operating batteries
replacement message is displayed, the main batteries may be depleted. In that case, replace
the main batteries first.
If the memory backup battery is replaced while the main batteries are depleted, the memory
contents of the OHP panel controller may be lost.
• Please refer to the EL-9450 operation manual to find out how to replace the operation batteries
and memory backup batteries.
Precautions on battery use
Battery Handling Notes
Batteries, if misused, can explode or cause electrolyte leakage. Pay special attention to the
following points:
1. Be sure to replace all four dry batteries at the same time.
2. Do not use new batteries with used batteries in the same unit.
3. Replacement batteries should be of the same type as those to be replaced.
Some types of batteries are rechargeable, while other types are not. Carefully read the type
description on the battery and choose the unrechargeable type.
4. Insert the batteries in the correct orientations as indicated in the battery compartments.
Caution:
• Fluid from a leaking battery accidentally entering an eye could result in serious injury. Should
this occur, wash with clean water and immediately consult a doctor.
• Should fluid from a leaking battery come into contact with your skin or clothes, immediately
wash with clean water.
• If the product is not to be used for some time, to avoid damage to the unit from leaking
batteries, remove them and store in a safe place.
• Do not leave exhausted batteries inside the product.
• Do not fit partially used batteries, and be sure not to mix different batteries types.
• Keep batteries out of the reach of children.

2. About the power supply

5