Radio Shack EC-3031 Скачать руководство пользователя | Manualshive

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3. Add to the right of the number as

many zeros as there were digits to
the left of the decimal point.

For example, the displayed value
E1.014206404 is estimated to
equal 10,142,064,040 (one zero
added).

4. Press

C

to clear the error.

CALCULATION
EXAMPLES

Basic Calculations

65-754.fm Page 23 Friday, August 27, 1999 1:17 PM

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Содержание EC-3031

Страница 1: ...Cat No 65 754 OWNER S MANUAL Please read before using this equipment EC 3031 Handheld Printing Calculator 65 754 fm Page 1 Friday August 27 1999 1 17 PM...

Страница 2: ...s small size the EC 3031 fits easily into a briefcase or travel bag for people on the go Its features include Percentage Calculations make de termining percentages and taxes sim ple Four Key Memory le...

Страница 3: ...ernal compartment or from a convenient fold out roll holder Two Power Sources let you power your calculator from four AA batteries or standard AC power with an optional AC adapter Automatic Power Off...

Страница 4: ...might cause TV or radio interference even when it is operating properly To elimi nate interference try one or more of the following corrective measures Reorient or relocate the receiving antenna Incr...

Страница 5: ...yed Value 18 Rounding 19 Correcting Entry Errors 21 Correcting Calculation Errors 22 Estimating Calculation Results 22 Calculation Examples 23 Basic Calculations 23 Constant Calculations 24 Memory Cal...

Страница 6: ...n to use the print function fre quently we suggest you use an AC adapter Installing Batteries You can power your calculator from four AA batteries We recommend alkaline batteries such as RadioShack Ca...

Страница 7: ...as indicated by the polarity symbols and marked inside the compartment Cautions Use only fresh batteries of the required size and type Never mix fresh and old batter ies alkaline and nickel cad mium...

Страница 8: ...ator Replace the batteries when the printing speed slows or the display dims Cautions If you do not plan to use the calcu lator for a month or more or you plan to use only an AC adapter remove and sto...

Страница 9: ...must be recycled or dis posed of properly Contact your local county or state hazardous waste man agement authorities for information on recycling or disposal programs in your area Some options that m...

Страница 10: ...apter meets these specifications Using an adapter that does not meet these specifications could damage the calculator or the adapter When you finish using the AC adapter disconnect it from the AC outl...

Страница 11: ...th NEG on the cord 2 Set the adapter s voltage switch to 6V 3 Insert the adapter s barrel plug into the calculator s jack Note Battery power automatically disconnects when you connect an AC adapter to...

Страница 12: ...l compartment you can use the external roll holder until the roll is small enough to fit inside the com partment about one inch diameter 1 Press AC to turn on the calculator 2 Slide open the paper rol...

Страница 13: ...inside the compartment To use the external roll holder insert the end of the paper into the rear slot from the bottom of the calculator Then insert the end of the paper into the slot inside the compa...

Страница 14: ...the paper 6 Install the paper roll Place the paper roll inside the paper roll compartment To use the external paper roll holder raise the holder and slip the paper roll onto it 65 754 fm Page 14 Frid...

Страница 15: ...hreading the paper through the slot Replace the paper roll when you see a red strip on one edge of the paper Use a standard 21 4 inch paper roll such as Cat No 65 710 or 65 715 65 754 fm Page 15 Frida...

Страница 16: ...3031 Press OFF to turn it off To save power the EC 3031 automati cally turns off if you do not use it for about 6 minutes Press AC to turn it back on Note All previous entries are cleared when the ca...

Страница 17: ...e or code number and so on without affecting the calculations in progress Note The calculator s input buffer holds up to 7 key operations so you can enter calculations even while the calculator is pri...

Страница 18: ...oes not print them Printing a Displayed Value To print a displayed value even when the print function is turned off press P If the display is showing a calculation result the EC 3031 prints that numbe...

Страница 19: ...oint The calculator uses the full 10 digit display to show your calculation re sults Select 5 4 to round final calculation re sults to two decimal places If the third number to the right of the decima...

Страница 20: ...appear with floating decimal points Select CUT to limit final calculation re sults to two decimal places with no rounding The entries and intermediate results appear with floating decimal points 65 7...

Страница 21: ...u enter an incorrect value press C once Then enter the correct value and proceed with your calculation If you press an incorrect function key simply press the correct key and continue 65 754 fm Page 2...

Страница 22: ...memory contents remain unchanged You try to divide by 0 If E appears press AC to clear the er ror ESTIMATING CALCULATION RESULTS If you perform an operation that results in an overflow error you can e...

Страница 23: ...were digits to the left of the decimal point For example the displayed value E1 014206404 is estimated to equal 10 142 064 040 one zero added 4 Press C to clear the error CALCULATION EXAMPLES Basic Ca...

Страница 24: ...24 Constant Calculations Press the function key twice to make the following value a constant Note A K appears on the display when you use a constant 65 754 fm Page 24 Friday August 27 1999 1 17 PM...

Страница 25: ...25 65 754 fm Page 25 Friday August 27 1999 1 17 PM...

Страница 26: ...tion and press M To add a value to the current memory value enter the number or calculation you want to add then press M The cal culator totals the current calculation and adds that value to memory To...

Страница 27: ...27 To recall the value from memory press MR Note An M appears on the display when the memory function is used 65 754 fm Page 27 Friday August 27 1999 1 17 PM...

Страница 28: ...28 Percentage Calculations 12 of 1500 What percentage of 880 is 660 65 754 fm Page 28 Friday August 27 1999 1 17 PM...

Страница 29: ...29 15 add on to 2500 25 decrease of 3500 If you made 80 last week and 100 this week what is the percent increase 65 754 fm Page 29 Friday August 27 1999 1 17 PM...

Страница 30: ...30 Markup Calculations What will the selling price and profit be when the purchasing price of an item is 480 and the gross profit margin is 25 65 754 fm Page 30 Friday August 27 1999 1 17 PM...

Страница 31: ...Dropping it can damage the circuit board and case and can cause the calculator to work improperly Keep the calculator away from dust and dirt which can cause prema ture wear of parts Wipe the calculat...

Страница 32: ...store for assistance REPLACING THE INK ROLLER The printer uses a disposable ink roller cartridge When the print gets too light replace the ink roller cartridge You can order replacement ink cartridges...

Страница 33: ...r roll holder if nec essary 3 Remove the ink roller by lifting it where you see PULL UP 4 Install the new ink roller cartridge 5 Lower the paper roll holder if nec essary 65 754 fm Page 33 Friday Augu...

Страница 34: ...cks up you reset it as shown in Installing Batteries on Page 6 Note The reset procedure clears all calculations and memory values If your EC 3031 still does not work properly replace the batteries and...

Страница 35: ...V Optional AC Adapter Cat No 273 1664 Dimensions HWD including roll holder 1 9 16 3 7 8 7 9 16 Inches 39 98 192 mm Weight including batteries 12 oz 34 kg Specifications are typical individual units m...

Страница 36: ...36 NOTES 65 754 fm Page 36 Friday August 27 1999 1 17 PM...

Страница 37: ...37 65 754 fm Page 37 Friday August 27 1999 1 17 PM...

Страница 38: ...38 65 754 fm Page 38 Friday August 27 1999 1 17 PM...

Страница 39: ...dioShack SHALL HAVE NO LIABILITY OR RE SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY LOSS OR DAMAGE CAUSED DI RECTLY OR INDIRECTLY BY USE OR PERFOR MANCE OF THE...

Страница 40: ...riginal warranty period You will be charged for re pair or replacement of the product made after the expiration of the warranty period This warranty does not cover a damage or failure caused by or att...

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