Datexx DB-413 User Manual
eCHECKBOOK
3 Memory Bank
DB-413
Features
Your Datexx 3 Memory Bank Account Calculator
makes balancing your checkbook quick and easy.
The calculator keeps track of your checking account
as you deposit or withdraw money from the account,
and lets you perform additional calculations without
disturbing your account balance.
Account Calculator
FUNCTION
CARD
SAVING
TAX (+) (–) BAL (=)
CHECKING
REVIEW
ENTRY#
M
+
M
–
7 8
4
1
0
5
2
x
9
-
6
3
+
=
www.datexx.com
Please read before using this equipment
Owner's Manual
AL
AM
÷
%
TAX
TAX RATE
SET
DAY
DATE
mm/dd/yy
TIME
CHECKING
REVIEW
DEPOSIT
CHECK
BALANCE
+
–
=
eCHECKBOOK
OFF
CREDIT CARD
REVIEW REVIEW
PAYMENT
+
CHARGE
–
BALANCE
=
ON
SAVING
DEPOSIT
+
WITHDRAW
–
BALANCE
=
Preparation
1. Insert your checkbook register in the pocket
below the calculator.
2. Put your checkbook in the slot below the calcua tor.
3. Place your credit cards in the slots provided.
3 Separate Memories keep track of your checking,credit card, and savings account balances.
Calculator Function lets you easily perform multistep calculations and has programmable tax keys.
Built-in Clock and Calendar keeps you on time.
Balance Function shows the current balance in
any of your accounts at the touch of a button.
Review Function lets you look at the last 20 entries in your checking, credit card, or savings accounts, including the transaction date.
Heavy-Duty Carry Case has slots for your credit
cards,check book, and pen.
2 Features
Operation
OPERATING THE CALCULATOR
Press ON/AC to turn on the calculator, or to clear an
old calculation and start a new one.
Press CE to clear an incorrect entry before you press
an operation key, or to clear errors.
4. Grasp the end of the protective insulation strip
and gently pull it out.
RESETTING THE CALCULATOR
If your calculator does not appear to be working correctly, reset it by pressing a straightened paper clip or
other pointed object into the RESET hole on the back
of the calculator.
Caution: This deletes all account records, resets the
date to 1-01-00, and returns the clock to 0:00 on
a 24-hour format.
Preparation 3
Press OFF to turn off the calculator.
If you press the wrong operator key (+,-,x or
), simply press the correct one and continue with
your calculation.
REVIEW
ENTRY#
7 8
4
1
0
x
9
5
2
-
6
3
+
=
AL
AM
÷
%
TAX
TAX RATE
SET
DAY
DATE
mm/dd/yy
TIME
CHECKING
REVIEW
DEPOSIT
+
CHECK
–
BALANCE
=
eCHECKBOOK
OFF
CREDIT CARD
REVIEW REVIEW
PAYMENT
+
CHARGE
–
BALANCE
BALANCE
=
ON
SAVING
DEPOSIT
+
WITHDRAW
–
=
4 Features
SETTING THE TIME
Standard Calculations
1. Hold down the CLOCK SET (%) about 3 seconds,
until the first digit of the month flashes.
2. Press + to select 12-or 24 hour format. AM or PM
appears to the left of the time to indicate 12-hour
format. Press to toggle between AM or PM in
12- hour format.
3. Enter the correct month, date, year, and time,
then press =.
Notes:
Repeatedly press or to move the cursor for ward or backward.
Enter the last two digits of the year. The year
affects the day of the week.
MAKING CALCULATIONS
Note: This Calculator follows standard and simple
mathematical rules.
Press the keys in the order they appear in the arithmetic operation.
Note: To enter a negative number, press then the
number. Or, enter the number and press then =,
MINUS appears on the left side of the display.
You Press
3 + 4 =
8 x 3 - 4 =
You See
7
20
Percentage Calculations
To find a percentage of a number, type the number,
then x, the percentage, and %.
For example, to find the percent of 12:
You Press
You See
12 x 3 % 0.36
Operation 5
Errors
Your calculator displays ERROR if you:
Try to divide by 0
Perform a calculation that result in an answer
greater than 99,999,999
Note: You can determine the approximate
answer by counting the number of digits dis played to the left of the decimal point. Put that
many zeros on the right side of the number, then
delete the decimal point. For example, if the cal culator displays ERROR 3423.8381, the
approximate answer is 342,383,810,000.
To clear the error and continue the calculation with
the display number, press CE. To clear the entire
calculation and begin again, press ON/AC.
Constant Calculations
6 Operation
Note: For multiplication, the calculator repeats the
first number and the x, For all other operations, the
calculator repeats the operator and the second number. For example, in the calculation 5 x 7, 5 x is the
constant. In the calculation 12 6, 6 is the constant.
Memory Calculations
To perform multi-step calculations:
Press MRC twice to
clear the memory.
Press M+ to total a
calculation and add
the total to the
value in memory.
FUNCTION
CHECKING
CARD
SAVING
TAX DEP(+) CHK(–) BAL (=)
REVIEW
ENTRY#
7 8
M+
4
M–
1
MRC
0
9
5
2
-
6
3
+
=
DAY
DATE
AL
TIME
AM
x
÷
%
TAX
TAX RATE
SET
Press M- to total a
calculation and subtract the total from the value
in memory.
Press = to repeat the last function. For example, to
calculate 5 x 5 x 5 x 5 2 2 = 629:
You Press
You See
5 x === +2== 629
Operation 7
Press MRC to recall (display) the value in memory.
8 Operation
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