Front
in the memory.
To clear the memory depress the
followed by the
key.
: 2nd function designation symbol Appears
when the 2nd function is designated
Decimal point/random number Key
(3) Display system
This machine displays a calculation result (x), if it is
within the following range, in the floating decimal
point system.
key
: Example:
• When the statistical mode is set
: Hyperbolic function designation symbol
Appears when hyperbolic function is
designated.
: These keys are used to generate uniform
random numbers from 0.000 to 0.999.
: Used to obtain the mean value of the data.
: Degree mode symbol Appears when the
degree mode is designated or shows that
the angular mode of the converted result
is in degree. Exponent
Note: Random number generation is not possible
when binary/octal /hexadecimal system mode is
set.
Used to obtain the sum of squares of data.
Recall memory/statistical calculation key
: Displays the contents of the memory.
The contents of the memory remain
unchanged after this key operation.
Equals/percent key
: Completes four arithmetic calculations (+, x,
+), xFi, Yx, and complex number calculations.
: Used for the percentage calculation and
add-on/discount calculation.
:Used to obtain the standard deviation of the
sample of data.
: Used to obtain the standard deviation of the
population of data.
DISPLAY
(1) Display format
Mantissa
0.055555556
0.055555555 This is determined by
the calculator in the form of
5.55555555556 x 10' Rounding the
11th digit of the mantissa results in
5.555555556 x 102.
When changed to the floating
decimal display, the rounded parts
may not be displayed as in this
example.
BIN: Appears when the binary system
mode is set or shows the displayed
number is a binary number.
(Scientific notion
system)
• When the statistical mode is set.
5.5555555-02 (The 10th decimal
place of the mantissa is rounded.)
: Parenthesis symbol Appears when a
calculation with parenthesis is performed
by depressing the ( key.
(Floating decimal
system, normal
display)
Memory plus/DATA CD key
• Used to add the number being displayed or
a calculated result to the contents of the
memory. When subtracting a number from the
memory, depress the +/- 1 and M+ keys in this
order.
(The 10th decimal place is rounded.)
OCT: Appears when the octal system mode
is set or shows the displayed number is an
octal number.
Exponent
+/- Change sign key
Changes the sign of the number displayed
6
: Error symbol Appears when an overflow
or an error is detected.
7
STAT: Appears when the statistical
calculation mode is set.
Scan the alongside QR code to register
for warranty. If you face any issues in
registering the warranty, please get in
touch with our customer support team
by writing to us at [email protected]
and we will gladly assist you.
This product should not be put / thrown away with regular
trash at the end of its useful life. It must be disposed at a central
point for recycling of electric and electronic domestic appliances.
This symbol on the appliance, instruction manual and packaging
is meant to warn you. The materials used in this appliance can be
recycled.
- Do not use a sharp object on the screen
- Do not expose the product to high temperatures
- Do not throw or put excess weight on the product
- Wipe gently with a dry cloth while cleaning
- Contains small parts, not suitable for children below
3 years.
is stored in the memory.
from a positive to a negative or vice versa.
Example
Website: www.xech.com
8
9
•
The customer has to register the warranty for the
product on https://xech.com/pages/warranty within
15 days from the date of purchase.
•
The product is not given to some external repair
personnel.
•
It is only valid in the Indian Subcontinent.
•
If the device is not immersed in water. It also does
not cover natural wear & tear or rough usage.
•
If the instruction manual is not followed & the
device is not used in an improper manner.
•
If the device is not used for its stated functionality.
•
If the device is not used by children below 3 years or
someone incapable or using the device.
•
The customer can claim warranty by visiting our
website www.xech.com or contacting our customer
support team by writing to us at
[email protected].
Scan the QR code &
follow us on Instagram
CAUTION
CPLX: Appears when the complex number
mode is set.
: Memory symbol Appears when a number
When the batteries are correctly installed "DEG 0."will
be displayed. (If the display shows nothing or a
meaningless symbol, or the keys become inoperative,
remove the batteries and install them again. Press
and
keys in this order and check the display
again.)
10 Digit Scientific Calculator with E-Writer
The warranty period validity is also subject to the
following conditions:
Note: - when function or calculation error, press
RESET.
HEX • Appears when the hexadecimal
system mode is set or shows the displayed
number is a hexadecimal number.
: Minus symbol Indicates that the number
in the display following the "-" is a
negative.
1. Turn off the calculator.
2. Remove the battery cover.
3. Replaces the batteries (+ side must be up)
4. Push in the battery cover.
5. After the replacement, press the
and
keys in this order to clear the calculator.
WhatsApp Customer Support: +91 93249 57452
DigiFold PRO
XECH warrants that the product will be
free from any manufacturing defects &
takes responsibility in case the device fails
to function for a period of one year from
the date of the original invoice.
Customer Care Email: [email protected]
Note: - wipe off the surface of the new batteries with
dry cloth and then install the batteries. Always replace
both of the batteries at the same time.
(2) Symbols
: Used to enter the data (numbers).
: Used to correct the mis-entry. (delete
function).
PRODUCT WARRANTY
Customer Care Address: The Customer Care Manager,
Theo Solutions Pvt Ltd. 43, Sarvodaya Industrial Estate,
Near Paper Box, Off Mahakali Caves Road, Andheri (E),
Mumbai – 400 093. Maharashtra, India.
Battery: and calculator
CR 1220 x 1 for LCD writing tablet
Example:
GRAD: Grad mode symbol Appears when
the grad mode is designated or shows that
the angular mode of the converted result
is in grad.
CUSTOMER CARE DETAILS
If the display becomes dark or dim, replace the
batteries with new ones according to the following
procedure.
And otherwise the machine displays x in the scientific
notation system. However a calculation result within
the above range is also capable of being displayed in
the scientific notation system by pressing the
key.
: Radian mode symbol Appears when the
radian mode is designated or shows that
the angular mode of the converted result
is in radian.
• When the statistical mode is set.
BATTERY REPLACEMENT
WARRANTY
Purchasing Date :
Invoice No:
Dealer Information:
10
User Manual
11
Back
DigiFold PRO
10 Digit Scientific Calculator with E-Writer
Smart Calculations with Effortless Writing
DESCRIPTION
XECH DigiFold PRO is a one of a kind scientific calculator
with an LCD notepad. This allows you to calculate & note
down complex calculations without the need for paper.
DigiFold PRO has been designed to especially improve
learning and improve work efficiency thanks to its
simplified operation. DigiFold PRO comes with dual
replaceable batteries & a convenient foldable design
making it practical and stylish, making it ideal for students
or professionals.
10 DIGIT SCIENTIFIC CALCULATOR
The scientific calculator comes loaded with 56 functions
that allow you to calculate Trigonometrical, Logarithmic,
Permutation, Combination, Hyperbolic, Statistical and
many other Mathematical & Arithmetic functions.
LCD E-WRITER
The 5.5 inch LCD E-Writer comes with a large writing
surface that allows you to note down calculations
eliminating the need to waste paper for rough calculations.
It comes with an erase button to clear the screen. It comes
with a stylus pen for effortless writing & a dedicated stylus
slot to safely store the pen.
PRODUCT FEATURES
- Scientific Calculator with
E-Writer
- Foldable Design
- Dual Batteries
- Automatic Shut Down
CALCULATOR FEATURES
- 10 Digit Calculator
- Scientific Application
- Soft Silicone Keys
- 42 Keys
CALCULATOR FUNCTIONS
- Statistical Calculations
- Trigonometric Calculations
- Logarithm Calculation
- Hexadecimal Calculations
- Summation
- Time Series
- Factorials
- Tabulations
LCD E-WRITER FEATURES
- Large Writing Surface
- Dedicated Stylus Slot
- Erase Button
- Bright Display
Stylus with
storage slot
Battery cover
Calculator
Battery Slot
PRODUCT FEATURES
THE KEYBOARD
Press this key to turn the calculator off.
Automatic Power-Off Function (A. P. O.) This
calculator is automatically turned off approximately
8 minutes after the last key operation to save the
batteries.
Power on and clear/statistical calculation mode
key =
Push this key to turn the calculator on. It is ready
for operation. When pushed during operation it
clears the calculator except for the memory.
Statistical program will be activated. When
the calculator is set to the statistical calculation
mode through these keys the symbol 'START'
appears, and at the same time the numerical
values and calculation commands, except for
memory contents are cleared. Meanwhile in the
statistical calculation mode the
,
,
and
keys work as the
,
,
&
keys, respectively.
And pushing these keys immediately after the
key th/ work as the
and
keys.
2nd function designation key
DEG— RADA GRAD 7 (
)
Ex. DEG —GRAD: Depress the key “DRG” twice.
'DEG" mode - Entries and answers are in decimal degrees.
‘RAD" mode - Entries and answers are in radians
*GRAD"mode - Entries and answers are in grads.
Battery cover
LCD E-Writer Battery Slot
Hyperbolic/arc hyperbolic Key
Trigonometric/inverse trigonometric function
key
Display format exchange/Tabulation key
:When a calculation result is displayed in the
floating decimal point system, pushing the key
displays the result in the scientific notation system
Pushing the key once more displays the result in
the floating decimal point system again
: To specify the number of decimal digits in
the calculation result.
Clear entry/Factorial key
: Used to clear an incorrectly entered number.._
: Calculates the factorial of the displayed
number. Factorial of
Degree/Radian/Grad selector/angular unit
conversion key
Used for calculation of trigonometric, inverse
trigonometric and coordinate conversion. The DRG
key changes the angular mode.
PRODUCT SPECIFICATIONS
- Calculator Battery: CR1120
- E-Writer Battery: CR1220
- Material: ABS + Silicone + LCD Panel
- E-Writer Screen: 5.5 inches
- Dimensions: Folded: 16cm x 8cm x 1.3cm
Unfolded: 16cm x 15.6cm x 0.6cm
- Weight: 120 grams
: It has the function of the DRG key as well as
converting the displayed number into a number of
the specified angular mode.
1
Degree/minute/second—Decimal degrees
conversion/hexadecimal number key
To convert degree/minute/ second to
decimal degree and vice versa.
: Hexadecimal number "D” key.
(effective only in hexadecimal number model HEX mode)
Natural logarithm antilogarithm and
hexadecimal number key
: Used to obtain the logarithm base a
(a = 2.718281828).
: Calculates the antilogarithm base e of the
displayed number.
2
HEX mode Hexadecimal number "E" key.
Common logarithm/antilogarithm and
hexadecimal number key
: Used to obtain the logarithm with the base
of 10.
: Calculates the antilogarithm with the base
of 10.
HEX mode Hexadecimal number "F" key.
: Used to set the complex number mode.
Close parenthesis/statistical calculation key
Enter exponent/Pi and hexadecimal
: Used to close parenthesis.
When the statistical mode is set.
: Displays the number of samples :
entered.(n)
MIEI: Used to obtain the sum of the date
number key
To enter number in scientific notation.
The constant x (x = 3.141592654) is entered.
Real number enter/coordinate conversion
key
: • This is used when the real parts of complex
numbers are to be Inputted and when calling
the real parts of calculation results.
• This is used during coordinate conversions when the
X coordinate of the Rectangular
Coordinates (X, Y) is input or when the r of the
polar coordinates (r, 0 ) is input. It is also used
for calling the calculated values of X or r.
: Converts rectangular coordinate into polar
coordinate.
Number keys
Used to enter numbers.
: HEX mode Hexadecimal number 'A' key.
and hexadecimal number key
: Raises a number to a power.
Division/binary number mode key
: Depressed for division
: Used to set the binary system mode.
: Converts the number displayed Into a
number in base 2
Calculates the Xth root of Y.
HEX mode Hexadecimal number ‘B" key.
Multiplication/octal number mode key :
: Depressed for multiplication.
: Used to set the octal system mode.
: Converts the number displayed into a
number in base 8.
Lf.s. = Square root/cube root and
hexadecimal number key :
Imaginary number enter/coordinate
conversion key
: • This is used when the imaginary parts of
complex numbers are to be input and when
calling the imaginary parts of the calculation
results.
• This is used during coordinate conversions when the
Y coordinate of the Rectangular coordinates (x,
Y) is input or when the e of the polar
coordinates (r, u ) is input. It is also used for
calling the calculated values of Y or 0 .
Converts polar coordinate into rectangular
coordinate.
Calculates the square root of the number
displayed.
Minus/hexadecimal number mode key =I:
: Depressed for subtraction.
: Used to set the hexadecimal system mode.
Converts the number displayed Into a
number in base 16.
Calculates the cube root of the number
displayed.
HEX mode
Hexadecimal number "C' key.
Plus/decimal number mode key
Square/reciprocal key:
: Calculates a square of the number
displayed.
: Calculates the reciprocal of the number
displayed.
Right shift/complex number mode key 1-1:
Example
: Depressed for addition.
: Used to set the decimal system mode
(normal mode).
Converts the number displayed Into a number
in base 10.
Open parenthesis/exchange key :
Used to open parenthesis.
3
Used to exchange the number being
displayed with the number stored in the
working register. (x—y)
® Memory-in/statistical calculation key
Clears the number in the memory and then
store the number being displayed
4
5
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