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Datexx DH-170FS Leaflet

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Getting Started
Note: Your Datexx Calculator is powered 
with a long-life, Lithium battery to assure 
uninterrupted service. 
(See “Battery Replacement” below for 
change-out procedure.)
Power On and Off
[
ON/AC]
 
Pressing this key and holding it 
a second turns the calculator on. This key 
is also used to clear all calculations, which 
is accomplished with a tap. 
 
[OFF]
 
Turns the calculator off. The unit also 
has an auto power-off feature which turns 
the unit off after 5 minutes of non-use.
[CE]
 
Tapping this key clears only the last 
entry without clearing the problem.
 Note: The Lithium battery in this calculator 
should be replaced approximately every 2 years.  
Battery Replacement
Features 
Calculate the Time and Value of Money 
(Savings, Automobile and Mortgage Loans).
Interest Calculations
Business Profit analysis (cost, sell & margin)
Currency conversions 
Tax Calculations
Savings Calculations
Built-in 3-key Memory Functions
Auto Power-Off -- Turns Unit off After 
5 Minutes Idle 
Slip Cover -- Slips the Unit Out of the “Base”, 
Reverse it, and Slide it Back in the Base to Store. 
Integrated Flip-Down Stand, for Easy Viewing 
Adjustment
Financial Planner
Model DH-170FS 
Operation Manual
Number of years
Annual yield
Future value
Calculate 
Save $
Compute
Future $
No. of 
Years
Annual Yield
%
Month
/Year
Number of 
compound
periods a year
Monthly installment
[Compute] [Future$]     $22, 161.10
[Save $]
[No. of Years]
[Annual Yield %]
 [Month/Year]
Press-- 
Loan calculations
Number of years
Interest rate
Monthly payment
Calculate
Loan $
Compute
Pay $
No of 
Years
Interest Rate
%
Month
/Year
Number of 
compound
periods a year
Mortgage amount
[Compute] [Pay$]
Automotive 
Loan
Number of 
years to pay
Interest Rate
12 payments
a year
Press-- 
Your Financial Planner from 
Datexx® is designed to be reliable 
and easy to use.  
This manual will provide clear
instructions for all product 
functions. 
An Affordable, 12-Digit Multi-function 
Calculator with Built-in Software 
Components. 
1. Slide the unit out of its case and turn 
    the unit over,face down. 
2. Use a small head 
    screwdriver to loosen 
    two screws on battery 
    compartment cover 
    and remove the cover     (see diagram).
3. Use a small head
    screwdriver to push up
    old battery. 
    (see diagram)
4. Replace the lithium 
    battery (CR-2025), 
    making sure the positive 
   (+) side is up.
5. Replace the cover 
    and screws.
Making 12 
payments 
a year
12 
At 4% 
interest rate
4
10
For 10 years
Save $150 
a month
150
How much money will I have if I save $150 
a month at 4% for the next 10 years?
Calculating the Time Value 
of Money
Savings calculations
$342.42
[Month/Year]
12
[Interest Rate%]
8% 
[No. of Years]
5 
[Loan $]
$17,000
You have your eye on a new car.  
The cost of the car is $22,000, and 
your down payment will be $5,000.  
You will be financing $17,000 at 8%.  
What will your payments be?
Calculating an automobile loan
You are buying a $120,000 Town House.  
Your down payment is 10% ($12,000), and you 
will be financing $108,000 at 8% for 30 years. 
What is your payment?
[Compute] [Pay$] 
         $787.22
Home Loan of 
              $108,000             [Loan $]
Number of years 
to pay                                          30         [No. of Years]
Interest Rate                                   8%     [Interest Rate %]
12 payments
a year                                          12        [Month/Year]
Press-- 
A word about mortgage payments (PITI)
A mortgage payment will include the mortgage 
payment principal and interest, in this case 
$787.22
. It will also include the monthly real 
estate taxes and insurance payment (Divide 
the annual rate by 12 to get the monthly rate). 
For Example: 
Annual taxes at $2,400, and annual insurance 
at $600 = $200 monthly tax payment + a $50 
monthly insurance payment.  Adding these to 
the total payment of $787.22 give us a total 
monthly payment of $1,037.22 (This is called 
Principal + Interest + Taxes + Insurance or PITI.)
How to compute the mortgage 
payment you can afford
Industry guidelines indicate that a consumer 
should spend about 28% of his monthly 
income on housing.  If your combined 
family monthly income is $6,000, you can 
afford a mortgage payment (PITI) of $1,680. 
(Other payments. like credit card and car 
payments, installment loans, etc., should not 
exceed 36% of your gross family monthly income.)
How much loan can I get with 
a PITI of $1,680
[Compute] [Loan $]    $230,482.65
Enter Payment                    $1,680             [Pay $]
Number of years 
to pay                                         30        [No. of Years]
Interest Rate                                   8%     [Interest Rate%]
12 payments
 a year                                        12           [Month/Year]
Press-- 
Loan Calculations
Calculating a mortgage
$6,000        [X]         28              [%]              $1,680