XECH DigiFold Pro Scientific Calculator User Manual

XECH DigiFold Pro Scientific Calculator

Product Information

• Product Name:
  • DigiFold PRO 10 Digit Scientific Calculator with E-Writer
• 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 improve learning and 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.
• 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:
  • 5.5-inch LCD E-Writer
  • Large writing surface for note-taking
  • Erase button to clear the screen
  • Stylus pen included for effortless writing
  • Dedicated stylus slot for pen storage
• 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

Product Usage Instructions

• Memory Functions:
  • To clear the memory, press the “key” followed by the “key”.
  • To obtain the mean value of the data, use the “:” key.
  • To obtain the sum of squares of data, use the “key”.
  • To display the contents of the memory, use the “Recall memory/statistical calculation key”. The contents of the memory remain unchanged after this operation.
  • To obtain the standard deviation of a sample of data, use the “key”.
  • To obtain the standard deviation of a population of data, use the “key”.
  • To enter data (numbers), use the “:” key. To correct mis-entry, use the “delete function”.
  • The “+/-” key changes the sign of the displayed number from positive to negative or vice versa.
• Decimal Point/Random Number Key:
  • Use this key to generate uniform random numbers from 0.000 to 0.999.
  • Note: Random number generation is not possible when binary/octal/hexadecimal system mode is set.
• Equals/Percent Key:
  • This key completes four arithmetic calculations (+, x, +), xFi, Yx, and complex number calculations. It is also used for percentage calculation and add-on/discount calculation.
• Display:
  • Display format: Floating decimal system, normal display, or scientific notation system.
  • Mantissa and exponent symbols are used to represent numbers.
  • The minus symbol indicates a negative number.
  • The memory symbol appears when a number is stored in the memory.
  • The error symbol appears when an overflow or an error is detected.

PRODUCT FEATURES

• 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
• 2nd function designation key
• 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.
  • 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.
• : It has the function of the DRG key as well as converting the displayed number into a number of the specified angular mode.
• 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/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.
• 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.
• 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 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.
• 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
  • coordinate of the Rectangular coordinates (x,
  • 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.
• Right shift/complex number mode key 1-1:
• Example
• : Used to set the complex number mode.
• Enter exponent/Pi and hexadecimal number key
• To enter number in scientific notation.
• The constant x (x = 3.141592654) is entered.
• : HEX mode Hexadecimal number ‘A’ key.
• and hexadecimal number key
• : Raises a number to a power.
• Calculates the Xth root of Y.
• HEX mode Hexadecimal number ‘B” key.
• = Square root/cube root and hexadecimal number key :
• Calculates the square root of the number displayed.
• Calculates the cube root of the number displayed.
• HEX mode Hexadecimal number “C’ key.
• Square/reciprocal key:
• : Calculates a square of the number displayed.
• : Calculates the reciprocal of the number displayed.
• Open parenthesis/exchange key :
• Used to open parenthesis.
• Used to exchange the number being displayed with the number stored in the working register. (x—y)
• Close parenthesis/statistical calculation key
• : 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 keys Used to enter numbers.
• 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
• Multiplication/octal number mode key :
• : Depressed for multiplication.
• : Used to set the octal system mode.
• : Converts the number displayed into anumber in base 8.
• 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.
• Plus/decimal number mode key
• : Depressed for addition.
• : Used to set the decimal system mode (normal mode). Converts the number displayed Into a number in base 10.
• ® Memory-in/statistical calculation key
• Clears the number in the memory and thenstore the number being displayed in the memory. To clear the memory depress the key followed by the key.
• When the statistical mode is set
• :Used to obtain the mean value of the data. (x)
• 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.
• When the statistical mode is set.
• :Used to obtain the standard deviation of thesample of data.
• : Used to obtain the standard deviation of thepopulation of data.
• 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.
• When the statistical mode is set.
• : Used to enter the data (numbers).
• : Used to correct the mis-entry. (delete function).
• Change sign key Changes the sign of the number displayed from a positive to a negative or vice versa. Example
• Decimal point/random number Key
• : These keys are used to generate uniform random numbers from 0.000 to 0.999.
  • Note: Random number generation is not possible when binary/octal /hexadecimal system mode is set.
• Equals/percent key
• : Completes four arithmetic calculations (+, x, +), xFi, Yx, and complex number calculations.
• : Used for the percentage calculation and add-on/discount calculation.

DISPLAY

1. Display format
2. Symbols
   • : Minus symbol Indicates that the number in the display following the “-” is a negative.
   • : Memory symbol Appears when a number is stored in the memory.
   • : Error symbol Appears when an overflow or an error is detected.
   • : 2nd function designation symbol Appears when the 2nd function is designated
   • : Hyperbolic function designation symbol Appears when the hyperbolic function is designated.
   • : Degree mode symbol Appears when the degree mode is designated or shows that the angular mode of the converted result is in degree. Exponent
   • : The radian mode symbol Appears when the radian mode is designated or shows that the angular mode of the converted result is in radian.
   • GRAD: The grad mode symbol Appears when the grad mode is designated or shows that the angular mode of the converted result is in grad.
   • : Parenthesis symbol Appears when a calculation with parenthesis is performed by depressing the ( key.
   • BIN: Appears when the binary system mode is set or shows the displayed number is a binary number.
   • OCT: Appears when the octal system mode is set or shows the displayed number is an octal number.
   • HEX: Appears when the hexadecimal system mode is set or shows the displayed number is a hexadecimal number.
   • CPLX: Appears when the complex number mode is set.
   • STAT: This appears when the statistical calculation mode is set.
3. Display system
   This machine displays a calculation result (x), if it is within the following range, in the floating decimal point system.

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.

Example:

(The 10th decimal place is rounded.)

BATTERY REPLACEMENT

If the display becomes dark or dim, replace the batteries with new ones according to the following procedure.
Battery: and calculator CR 1220 x 1 for LCD writing tablet

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 keys in this order to clear the calculator. When the batteries are correctly installed “DEG 0.” will be displayed. (If the display shows nothing or 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.)

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.
Note: – when function or calculation error, press RESET.

CAUTION

• 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.

CUSTOMER CARE DETAILS

• 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.
• Customer Care Email: support@xech.com.
• WhatsApp Customer Support: +91 93249 57452
• Scan the QR code &
• follow us on Instagram
• Website: www.xech.com.
• Scan the QR code to register for a warranty. If you face any issues in registering the warranty, please get in touch with our customer support team by writing to us at support@xech.com 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.

PRODUCT WARRANTY

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. The warranty period validity is also subject to the following conditions:

• 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 of using the device.
• The customer can claim a warranty by visiting our website www.xech.com. or contact our customer support team by writing to us at support@xech.com.

WARRANTY

• Purchasing Date :
• Invoice No:
• Dealer Information:

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 improve learning and improve work efficiency thanks to itssimplified 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 trigonometry, Logarithmic, Permutation, Combination, Hyperbolic, Statistical, and many other Mathematical and 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 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

FEATURES

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

THE KEYBOARD

References

• XECH - Invent the Future
• Warranty – XECH

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