National Semiconductor NS500, Instructions Manual

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Page 2: ...National semiconductor PRINTING Q1LCU TOR INSTRUCTIONS NS500 POCKET PRINTER ...

Page 3: ...2 CLEAR ENTRIES CLEAR ALL tElc 3 ADDING MACHINE KEYS 3 4 ADDITION SUBTRACTION 4 REPEAT ADDITION SUBTRACTION 5 MULTIPLICATION 5 DIVISION 6 MULTIFACTOR MULTIPLICATION DIVISION 7 CONSTANT MULTIPLICATION 8 CONSTANT DIVISION 8 PERCENTAGES 9 THE MEMORY 10 MIXED CALCULATIONS 10 INVALID KEY SEQUENCES WHICH INVERT DIVISION ENTRIES 1 1 EXAMPLES OF COMMON BUSINESS PROBLEMS 11 ...

Page 4: ...arged battery situation should be avoided for longest use of the batteries Charge them for 30 minutes with the power switch off then you may use it in the non print mode while the batteries finish charging about 8 hours of charging time while in use 5 hours of charging time if power switch is turned off Charge your batteries for the full 15 hours with the on off switch off if your batteries are in...

Page 5: ...the display This feature will allow you to save paper when you have no need for a tape DECIMAL SWITCH THE FLOATING DECIMAL SETTING IS FOR MAXIMUM DECIMAL NUMBERS IN THE ANSWER Set the decimal switch at F for a floating decimal A floating decimal system automatically puts the decimal behind numbers as you key them into the calculator until you press the decimal point key When the is pressed the dec...

Page 6: ...saves time eliminates re entry of the same number when it appears repeatedly The number being added prints Press to subtract the subtrahend or bottom number as it s written in subtraction The minuend or top number is entered on Repeated depressions of cause repeat subtraction 3 _ _ T Total key prints the contents of and also clears the adding machine S Non Add and Subtotal key prints the contents ...

Page 7: ...er subtrahend press 4 Press S to see a subtotal printed Press T to print the total answer and c ear the adding machine Negative totals and subtotals print with a negative sign to the immediate left of the most significant digit so that you can t miss it Example 55 55 1 11 54 44 12 20 0 41 21 00 33 61 Sample Tape 12345 5 75 6 00 23 76 35 51 Sample Tape 0 00 003 Subtotals addition Totals addition Th...

Page 8: ... off to 3 13 Set decimal switch 2 place setting Error Correction The repeat addition subtraction feature may be used to correct erroneous or key depressions If you press by mistake press to cancel it and vice versa 123 45 123 45 123 45 456 78 456 78 Sample Tape 0 00 000 Set decimal switch 2 place setting l T Enter Press T 123 45 456 78 REPEAT ADDITION SUBTRACTION Multiple depressions of the or key...

Page 9: ...ifferent ways Sample Tape 0 1 6 0 16666666666 000 If your answer is 0 17 the decimal setting instruc tions were not followed 6 0 166666666 Set decimal switch F setting k I Press Comments T 1 6 Enter DIVISION To divide 1 Press T to clear any multiplication or division previously started and not yet terminated by pressing This step is not always necessary 2 Enter the top number dividend for division...

Page 10: ...ter factors on the x key 4 Enter the last factor press the key Example 5 x 2 X 3 30 Set decimal switch 2 setting Enter Press T Sample Tape 0 00 Example Correct Key Sequences For Previous Problem 5 x 2 x 4 3 x 2 140 Set decimal switch 2 place setting B Enter Press Comments Sample Tape T 0 00 000 5 x 5x 2 x 2x x 2x 4 Addition performed last 4 00 3 3 00 T 7 00 002 20x 7 00 140 00 OR 4 rAddition perfo...

Page 11: ...X 5 2 11 46392 Sample Tape o 000 Enter Press Comments T 2 2046 X 5 2 6 75 7 25 Enter Press Sample Tape 1500 x 1500X 075 X 0 075 X 160 160 360 360 50 00 CONSTANT MULTIPLICATION The first number in multiplication is automatically stored in an internal memory of your calculator when the X key is pressed This number does not have to be entered again when it is neces sary to multiply a constant number ...

Page 12: ...discount Set decimal switch 2 place setting El To divide two amounts and see the answer expressed as a percentage 1 Enter the top number dividend press divide 2 Enter the second number divisor press Prints the result of 100 The functions exactly like with a division of products by 100 or multiplication of quotients by 100 14 88 2 2046 6 74952372312 15 98 2 2046 7 24848044996 PERCENTAGES The full f...

Page 13: ... MADE ON TO BE USED AS THE DIVISOR NORMALLY THE SECOND NUMBER ENTERED FOR DIVISION THE TAPE CLEARLY ILLUSTRATES THIS AS SHOWN IN THE EXAMPLE THAT FOLLOWS Example Percentage of Increase or Decrease A sales manager needs to compare his sales volume this quarter 2 162 500 with that of the last quarter 1 950 400 How many percentage points did his sales increase Formula This answer is read as 50 percen...

Page 14: ...tting 5000 00 0 2x 5000 000 1000 00 4000 000 Sample Tape 0 2X 4000 00 800 00 0 2x 5000 00 1000 00 002 001 Set decimal switch 2 place setting Enter Press Comments T 5000 2 x 5 5 5 etc PERFORMING THE ABOVE PROBLEM IN THE ORDER IN WHICH IT IS WRITTEN IS AN INVALID KEY SEQUENCE AND WILL RESULT IN THE CALCULATION 5 15 0 333 3 EXAMPLES OF COMMON BUSINESS PROBLEMS Double Declining Balance Depreciation De...

Page 15: ... 18 3 2 818 18 1 90 909090909 x T 8 727 27 727 27 90 909090909 x 7 636 36 636 36 90 909090909 x 6 545 45 12 545 45 4 90 909090909 5 454 55 454 55 I 90 909090909 4 363 64 363 64 1 90 909090909 3 272 73 272 73 90 909090909 2 181 82 181 82 I 90 909090909 1 90 91 90 91 I 5000 00 010 PRORATION Determine the percentage of departmental sales to total sales of the company Verify your answers by accumulati...

Page 16: ... 00 456 00 789 00 1368 00 1368 00 1 00 123 1368 00 8 990 8 99 1 456 1368 00 33 330 33 33 1 789 1368 00 57 680 57 68 1 100 00 l 003 13 Example Invoicing 12 items 1 25 15 00 5 items 5 25 26 25 Credit 6 items 2 00 12 00 29 95 amount of invoice Set decimal switch 2 place setting r l Enter Press Sample Tape T 0 00 000 12 X 12x 1 25 1 25 15 00 5 X 5 25 15 00 5x 6 X 5 25 2 26 25 26 25 T 6x 2 12 00 12 00 ...

Page 17: ... COMBINED ADD ON AND DISCOUNT PROBLEM Given 15 items 7 50 5 items 9 00 Discount rate 4V2 Tax rate 5 Freight charge 8 75 Find Individual extensions items times price Discount amount Net amount after discount Tax amount Net billing plus freight Set decimal switch 2 place setting 14 Enter Press Sample Tape CE c O C 15 x 15x 7 5 M 7 5 5 x 112 50 9 M 112 50 1 MT 5X x 9 4 5 45 00 x 45 00 1 5 0 0 157 50 ...

Page 18: ...king that the sum equals 5000 or nearly 5000 Department A 17 252 Department B 12 123 Department C 999 Set decimal switch F setting 1iiI Press Comments 003 5000 17252 12123 999 x T Decimal must be set at F for accuracy in your answers 30374 30374 1 5000 30374 0 1646144729 0 1646144729 x 17252 2839 92888647 2839 92888647 0 1646144729 x 12123 1995 62125496 1995 62125496 0 1646144729 x 999 164 4498584...

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