Teledex DD-922 warranty Operating the Calculator, Performing Calculations, Using the Calculator

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TM DD-922

OPERATING THE CALCULATOR

ON/C key – turns on the calculator. The calculator automatically turns off after about 7 minutes if no key is pressed.

+/– key – Press to change the displayed number from positive (+) to negative (–)or from negative (–)to positive (+). appears when the value is negative.

CE key – Press CE to delete the displayed number without losing any pending calculation. If a result is too large to show on the display, the calculator stops and displays E. Press CE to resume calculating. Press ON/AC to clear the entire calculation.

PERFORMING CALCULATIONS

 

Press

Displayed

Addition (+)

 

 

 

Example: 6 + 7 = 13.

[6]

+ [7] =

13

Subtraction (–)

 

 

 

Example: 10 – 4 = 6.

[1]

[0] – [4] =

6

Multiplication (x)

 

 

 

Example: 7 x 5 = 35.

[7] x [5] =

35

Division ()

 

 

 

Example: 14 7 = 2.

[1]

[4] [7] =

2

USING THE CALCULATOR

Percentages (%)

Press

 

Displayed

Example:

 

 

 

Calculate 6% of 100.

[1] [0]

[0] x [6] %

6

Example:

 

 

 

Add 6% tax to $20.

[2] [0]

+ [6] %

21.2

Example: Calculate a

 

 

 

20% discount from $150.

[1] [5]

[0] – [2] [0] %

120

CONSTANT CALCULATIONS

 

Press = to repeat last function.

 

 

Example: Calculate 5 x 5 x 5 x 5 + 2 + 2 = 629

 

Press [5] x =

= = +

[2] = =

629

Simple Equations

(12 x –5)2 = –30

12 x 5 +/– 2 =

MINUS 30

152 + 38

= 190

152

+ 38 =

190

78

– 22

=

56

78

– 22 =

56

22

x 12 =

264

22

x 12 =

264

312 6

=

52

312 6 =

52

Profit Analyser

Decimal set

(F)Floating, Fixed(0,2,3,4), (A)accountant,

(A) Add. Mode, (0,2,3,4)

(F) FileBkomma

F 0 2 3 4 A

:() An answer is rounded up

:(5/4) An answer is rounded off

:( ) An answer is rounded down

5/4

BATTERY REPLACEMENT

Remove 2

Srews on (Replace with 389 battery)

Back and

lift cover off

 

 

 

+

Slide battery to left

 

 

 

 

using small

 

 

 

 

 

 

Located battery

screw driver.

 

 

Holder

 

Then replace

 

 

 

 

CARE AND MAINTENANCE

Keep the calculator dry. If it gets wet, wipe it dry before use.

 

 

 

Do not use harsh solvents or detergents to clean.

Replace with 389 battery

TELEDEX Limited U.S.A. Warranty

TELEDEX INC. warrants these products to the original purchaser to

be free from defective material and workmanship. The product will be repaired or replaced at our option, for up to one year when

returned with proof of purchase to the address below. Include a check or money order for $3.00 to cover postage.

TELEDEX INC. 1 Atlas st. Kenilworth, NJ 07033

Warranty valid only in the U.S.A.

Printed in China 4/01

www.datexx.com

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Contents Operating the Calculator Using the CalculatorPerforming Calculations