background image

- 18 -

GETTING STARTED

Paperless Tape Review

The Paperless Tape Review feature allows you to review up

to 20 entry steps and calculation results. The display will

show the entered or calculated value, along with the entry

step number.
Clear Calculator and enter a string of numbers

(i.e. 2 + 3 + 4 - 6 + 7 = 10)
Enter Tape Review  

5

2ND

  

Tape

  icon is activated

Display will read

Tape

  

06 =   10.

The 

[+]

 and 

[-]

 keys allow you to step forward and backward

through the last 20 steps entered into the calculator. After

the initial display of the result, the [

+]

 key starts sequencing

through the series of entries and calculations starting with

the first step of the sequence. The 

[-]

 starts sequencing

through the series in the reverse order starting with the next

to last entry.

To review 2 + 3 + 4 - 6 + 7 = 10 in the forward direction

Key Sequence  

Result Displayed

[2ND] [=]

Tape

  06= 

10.

[+]

  

Tape

  01  

2.

[+]

  

Tape

  02+ 

3.

[+]

 

Tape

  03+ 

4.

[+]

 

Tape

  04- 

6.

[+]

  

Tape

  05+ 

7.

[+]

 

Tape

  06=

10.

- 19 -

GETTING STARTED

To review in the reverse direction

Note: If more than one series of calculations have been

performed, the Paperless Tape will only review the last series

of calculations. Previous series of calculations will be deleted.

Example:

Enter Calculation Series #1:

4

1

2

3

1

5

1

1

10.

Then Enter Calculation Series #2:

Feet

4

2

3

3

5

Feet

3

Feet

24 CU Ft

Your paperless tape will only review the Calculation 

Series #2

To exit Paperless Tape Review press  

2ND

·

 .

Key Sequence  

Result Displayed

[-]

   

Tape

  05+  

7.

[-]

 

Tape

  04- 

6.

Etc.

- 20 -

EXAMPLE PROBLEMS

Complex Area

Determining the square feet of an “L” shaped room when

depth is unknown.

Enter: 

RCL

2ND

  to clear Memory.

Enter: 

Feet

Inch

8
9

5

1
2

3

3
5

Feet

Inch

Answer:

  536.8542  SQ Ft

Press: 

M+

  to store in memory.

Enter: 

Feet

Inch

1

3

0

3

5

Feet

1

0

Answer:

  102.5  SQ Ft

Press: 

2ND M+

 (to subtract from memory) then

Press: 

RCL RCL

 to recall total 

434.3542 SQ Ft

.

NOTE: 

[RCL] [RCL]

 should only be used when you no longer

need to keep in memory otherwise use 

[RCL] [M+]

 to recall

and keep in memory.

29' 5"

10'

18' 3"

10' 3"

Summary of Contents for DT220

Page 1: ...Weight Conversions 17 Liquid Conversions 17 Temperature Conversion 17 Paperless Tape Review 18 19 EXAMPLE PROBLEMS 20 35 Complex Area 20 Carpentry Rough Opening 21 Carpentry Joist Numbers 21 CONTENTS...

Page 2: ...ys Percent is used to find a given percentage of a number 6 2ND X2 is used to take the square quantity multiplied by itself of the number on the display No operation is performed if the square of an a...

Page 3: ...ter and convert pounds lbs 2ND kg Use to enter and convert kilograms DryOz Dry Oz use to enter and convert Dry Ounces DryOz 2ND grams Use to enter and convert grams Dimension Keys Mile Mile Use for en...

Page 4: ...alley length If an irregular pitch 2ND H V is entered first then the irregular hip valley will be shown H V 2ND Irregular Pitch is used to change the regular pitch value for determining lengths of irr...

Page 5: ...4 5 Enter 7 Ft 0 3 64 INCH Feet 32 4 1 2 3 4 5 Enter 2 5 Inch 5 2 Inch 4 5 14 GETTING STARTED DEFAULT SETTINGS Reduced Fraction Mode Your calculator is set to Reduced Fraction mode which give the mos...

Page 6: ...isplayed Convert 10 pounds 10 lbs 10 LB To kgs 2ND kg 4 535924 KG Liquid Conversions Key Sequence Result Displayed Convert 10 Gallons 10 Gal 10 GL To Liters 2ND Gal 37 85412 L Temperature Conversion K...

Page 7: ...4 Tape 04 6 Tape 05 7 Tape 06 10 19 GETTING STARTED To review in the reverse direction Note If more than one series of calculations have been performed the Paperless Tape will only review the last se...

Page 8: ...dd to memory Find Area of c Enter Feet Inch 5 3 0 3 5 3 Answer 87 5 SQFt Press M to store in memory Press RCL RCL to recall 125 total SQ Ft then multiply by depth Inch 4 3 5 Answer 41 66667 CU Ft To c...

Page 9: ...nd you require shorter risers 5 and wider treads 3 for physically challenged user Operation Reset Enter CE CLR CE CLR Display 0 Operation Enter Height Enter Rise Feet 3 Display RISE 3 Ft 0 INCH Operat...

Page 10: ...c foot of lumber conversions can only be done to and from other cubic measurements Circle Solutions After entering the diameter of a circle the Circle function is used to find the circumference and ar...

Page 11: ...12 thus a 4 12 roof has a SLOPE of 4 when entering SLOPE always use inches In Metric pitch is expressed in millimeters over 1 000 millimeters of run Enter Display Pitch Inch 4 PTCH 4 INCH Run Feet In...

Page 12: ...d on center spacing applies to main roof and 18 on center spacing applies to hip roof Fix Fraction to 8ths Operation Change Fixed Fraction Key Sequence 8 2 2ND 2ND Display Fix 0 Operation Run Key Sequ...

Page 13: ...re possible Don t leave the calculator on when not in use NOTE To save the battery calculator will turn off automatically after 10 12 minutes of inactivity at which time the displayed value and memory...

Page 14: ...rmal Size Actual Size S4S 1 x 2 3 4 x 1 1 2 1 x 3 3 4 x 2 1 2 1 x 4 3 4 x 3 1 2 1 x 6 3 4 x 5 1 2 1 x 8 3 4 x 7 1 4 1 x 10 3 4 x 9 1 4 1 x 12 3 4 x 11 1 4 2 x 2 1 1 2 x 1 1 2 2 x 3 1 1 2 x 2 1 2 2 x 4...

Page 15: ...are designed to provide reasonable protection against harmful interference in a residential installation This device generates uses and can radiate radio frequency energy and if not used in accordance...

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