NexxTech 6500505 User Manual
Digit pocket calculator, Features, A quick look at the calculator
OWNER’S MANUAL — Please read before using this equipment.
8-Digit Pocket Calculator
FEATURES
Your 8-Digit Pocket Calculator is small, yet it has the
features you use the most. It includes the four basic
math functions (addition, subtraction, multiplication,
and division), plus it has percentage, square root,
and memory functions. Its other features include:
Dual Power — the solar cell powers the calculator when
there is enough light, and the replaceable battery powers
the calculator when the light is dim.
Large 8-Digit Liquid Crystal Display —makes it easy to
read calculation results.
Automatic Power Off — conserves battery power by
turning off your calculator if you do not press a key for
about 7 minutes.
A QUICK LOOK AT THE
CALCULATOR
ON/C
— Press
ON/C
to
turn on your calculator or
to clear a calculation.
+/–
— Press to change the displayed num-
ber from positive (+) to negative (–) or from
negative (–) to positive (+).
MINUS–
ap-
pears when the value is negative.
CE
— Press
CE
to clear an
incorrect entry before you
press an operation key.
Note: If you press an incorrect operator key (+, –, ×, or ÷),
simply press the correct one and continue with your calcu-
lation.
ERRORS
Your calculator displays
ERROR
and does not allow fur-
ther calculations if you:
• try to take the square root of a negative number.
• try to divide by zero.
• perform a calculation that results in an answer greater
than 99,999,999.
In this case, you can determine the approximate
answer by counting the number of digits displayed to
the left of the decimal point, putting that many zeros
on the right side of the number, then deleting the dec-
imal point.
For example, if the calculator displays
ERROR
3423.8381
,
the
approximate
answer
is
342,383,810,000. To clear the error and continue the
calculation with the displayed number, press CE.
To clear the entire calculation, press
ON/C
.
PERFORMING CALCULATIONS
To Calculate
You Press
You See
64
64
8.
$20 + 6% tax = 21.2
20 + 6 %
21.2
$150 discounted 20% = 120
150 – 20 %
120.
Constant Calculations
Press
=
to repeat the last function.
To Calculate
You Press
You See
5 Ч 5 Ч 5 Ч 5 + 2 + 2 = 629
5 x = = = + 2 = =
629.
For addition, subtraction, and division, the value you enter
before pressing
=
is the constant. For multiplication, the
value you enter before pressing × is the constant.
Memory Calculations
To store a value in memory, first press
(memory recall/
clear) twice to clear the memory, then press
ON/C
to clear
all calculations.
6500505
Document Outline
- 8-Digit Dual-Powered Calculator 6500505
- Features
- A Quick Look at the Calculator
- Errors
- Performing Calculations
- Replacing the Battery
- 1. Place the calculator face down on a flat surface.
- 2. Use a Phillips screwdriver to remove the screw securing the back cover.
- 3. Slide the back cover down to remove it.
- 4. Remove the old battery.
- 5. Position the new battery so the positive (+) side is up, then press the battery into the battery holder.
- 6. Slide the front and back case halves back together, then reinsert and tighten the screw.
- Specifications