User manual SHARP EL-1750PIII

[. . . ] Each time this key is pressed, the mode switches. WARNING ­ FCC Regulations state that any unauthorized changes or modifications to this equipment not expressly approved by the manufacturer could void the user's authority to operate this equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. [. . . ] Make sure that you turn the calculator's power off when connecting or disconnecting the AC adaptor. When is pressed, the number entered is evaluated and displayed as "date" if the value is within the following range; "Error" is displayed otherwise, and the previously set date is restored. month: 1 - 12; day: 1 - 31; Year: 2000 - 2099 (in 4 digits) or 00 - 99 (in 2 digits) Time: · Enter in the order of hour, minutes, then press to complete the entry. If the hour/minute digit is less than 10, it is not necessary to enter the first digit "0". Use to separate hour and minute values. is pressed , the number entered is evaluated and displayed as "time" if the · When value is within the following range; "Error" is displayed otherwise, and the previously set time is restored. hour: 0 - 23 (24-hour system for the hour entry) , Minute: 0 - 59 Tax rate: · Press three times, enter the tax rate, followed by . A maximum of 4 digits can be stored (decimal point is not counted as a digit). If you enter a new rate, the previous rate will be cleared. Use of other than the AC adaptor EA-63A/28A may apply improper voltage to your SHARP calculator and will cause damage. To Install or Replace Batteries -- When the battery power becomes weak, printing may be halted, and displayed images may disappear. If such symptoms are observed, replace the batteries with new ones. Always put back the 4 batteries at the same time. Battery: Manganese dry battery, size AA (or R6) × 4 If the leaked electrolyte gets into eyes, wash off with clean water, and consult your doctor immediately. If the leaked electrolyte gets on your skin or clothes, wash off thoroughly with water. remove batteries if not used for prolonged periods of time. Do not leave dead batteries in the unit. Do not mix new and used batteries and/or battery types. DECIMAL / ADD MODE SELECTOR: "3 2 0": Presets the number of decimal places in the answer. Use of the add mode permits addition and subtraction of numbers without entry of the decimal point. Use of , and will automatically override the add mode and decimally correct answers will be printed. There are several situations which will cause an overflow or an error condition. [. . . ] *3 : Press to clear the memory before starting a memory calculation. EXAMPLE 3: Determine the margin when the cost price is set at $350, and the selling price at $500. Cost price Selling Price Margin Also, obtain the margin when the cost price is set to $250. Strong impacts, exposure to electrical fields, or other unusual conditions may render the unit inoperative, and pressing the keys will have no effect. [. . . ]