[. . . ] € Please keep your manual and all information handy for future reference. € The switches and keys available on your calculator depend on its model number. [. . . ] Because of this, it may require replacement sooner than the normal expected battery life. 12, 1:00 PM HS-8VER/MS-8VER/MS-80VER/SL-100VER/SL-160VER/ SL-300VER/SL-790VER The Two-Way Power System of this calculator uses a solar cell, in addition to one LR54 (LR1130) button type battery. Unlike calculators equipped with a solar cell only, you can use this calculator under virtually any lighting conditions, as long as there is enough light for you to read the display. If the display becomes dim and difficult to read, or if nothing appears on the display when you press A (especially when lighting is dim), you probably need to have the battery replaced. € A dead battery can leak and damage the calculator if left in the battery compartment for long periods. € The battery that comes with this unit discharges slightly during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life. 12, 1:01 PM k Auto Power Off Function This calculator switches power off automatically about six minutes after the last key operation is performed. € When you press A (or / (HL-820VER)), the independent memory contents are not cleared. 4 / Important Precautions • • • • • Avoid dropping the calculator and otherwise subjecting it to severe impact. The contents of these instructions are subject to change without notice. Assumes no responsibility for any loss or claims by third parties which may arise from the use of this product. [. . . ] 12, 3:14 PM k Constant Calculations Input the number you want to use as a constant, and then press one of the arithmetic keys twice. This causes the “K” indicator to appear on the display, indicating constant calculations. [. . . ]