Sharp EL501X2BWH inseneri-/teaduskalkulaatori kasutusjuhend

1. Sissejuhatus

This manual provides detailed instructions for the operation and maintenance of your Sharp EL501X2BWH Engineering/Scientific Calculator. Designed for students and professionals, this calculator performs over 130 scientific and mathematical functions, making it suitable for general math, pre-algebra, algebra, and trigonometry. Please read this manual thoroughly to understand all features and ensure proper use.

Image 1.1: The Sharp EL501X2BWH Scientific Calculator, displaying its keys and single-line LCD screen.

2. Alustamine

2.1. Aku paigaldamine

The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:

1. Veenduge, et kalkulaator oleks välja lülitatud.
2. Leidke kalkulaatori tagaküljel olev patareipesa kate.
3. Remove the cover using a small screwdriver.
4. Insert two new LR44 batteries, observing the correct polarity (+/-).
5. Asetage patareipesa kate kindlalt tagasi.

Märkus. Always use fresh batteries and dispose of old batteries responsibly.

2.2. Sisse- ja väljalülitamine

• Kalkulaatori sisselülitamiseks vajutage ON/C nuppu.
• To turn off the calculator, press the 2. F nuppu, millele järgneb VÄLJAS nuppu.

2.3. Kuva üleview

The calculator features a 10-digit, 1-line LCD display. Indicators for various modes (e.g., DEG, RAD, GRAD, CPLX, STAT) will appear on the display to show the current calculator state.

Image 2.1: Close-up of the calculator's 10-digit LCD display and the reset button location.

3. Põhitoimingud

3.1. Arithmetic Calculations

Perform basic arithmetic operations using the number keys and the +, -, ×, ja ÷ võtmed. Vajutage = tulemuse kuvamiseks.

• Example: To calculate 15 + 7: Press 1 5 + 7 =. Ekraanil kuvatakse 22.

3.2. Clear Functions

• Vajutage CE to clear the last entered number or operation.
• Vajutage ON/C to clear all entries and reset the calculator to its initial state (except memory).

4. Teaduslikud funktsioonid

The calculator provides 131 built-in functions. Many keys have secondary functions, accessed by pressing the 2. F key before the desired function key.

4.1. Trigonometric Functions

Kasutage patt, cos, tan for standard trigonometric calculations. Their inverse functions (patt^-1, cos^-1, tan^-1) are accessed via 2. F.

The angle unit can be changed using the DRG võti. Vajutage DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).

4.2. Logarithmic and Exponential Functions

• Logarithms: Kasutage logi (alus 10) ja ln (naturallogaritm).
• Exponentials: Kasutage 10^x (ligipääs läbi 2. F ja logi) ja e^x (ligipääs läbi 2. F ja ln).

4.3. Powers and Roots

• Ruut: Kasutage x².
• Ruutjuur: Kasutage √ (ligipääs läbi 2. F ja x²).
• Üldine võimsus: Kasutage y^x.
• Reciprocal: Kasutage 1/x (ligipääs läbi 2. F ja y^x).

4.4. Factorials

Calculate factorials using the n! function (accessed via 2. F ja CPLX).

5. Täpsemad funktsioonid

5.1. N-Base Calculations (HEX, DEC, BIN, OCT)

The calculator supports calculations in different number bases: hexadecimal (HEX), decimal (DEC), binary (BIN), and octal (OCT). Use the dedicated keys for these operations, typically found above the number keys (e.g., →OCT, →KASS, →DEC, →KUUSKUUES).

Image 5.1: The calculator's keypad, showing various scientific and N-base function keys.

5.2. Complex Number Calculations

To enter and perform calculations with complex numbers, switch to Complex Mode. Press CPLX to activate this mode. The display will show "CPLX".

Refer to the calculator's key markings for specific complex number operations (e.g., real and imaginary part extraction, argument, magnitude).

5.3. Statistics Functions

The calculator supports one-variable statistical calculations. To enter Statistics Mode, press STAT. The display will show "STAT".

Kasutage ANDME-CD key to clear statistical data and the M+ key to input data points. Statistical results (mean, standard deviation, etc.) can be retrieved using specific function keys, often accessed via 2. F.

5.4. Mälufunktsioonid

The calculator has one independent memory. Use the following keys:

• M+: Lisab kuvatud väärtuse mällu.
• STO: Stores the displayed value into memory.
• RCL: Recalls the value from memory to the display.

6. Hooldus ja hooldus

6.1. Puhastamine

To clean the calculator, wipe it with a soft, dry cloth. Do not use abrasive cleaners, solvents, or spray directly onto the calculator, as this may damage the casing või sisemisi komponente.

6.2. Ladustamine

When not in use, store the calculator in its protective hardcover to prevent scratches and damage. Avoid exposing the calculator to extreme temperatures, humidity, or direct sunlight for extended periods.

Image 6.1: The Sharp EL501X2BWH calculator with its protective slide-on cover, which also features basic instructions.

7. Veaotsing

7.1. Levinumad probleemid

• Kalkulaator ei lülitu sisse: Kontrollige patareide paigaldust ja veenduge, et patareid poleks tühjad. Vajadusel vahetage patareid välja.
• "Error" message displayed: This usually indicates an invalid operation (e.g., division by zero, taking the square root of a negative number). Press CE or ON/C vea kõrvaldamiseks ja arvutuse uuesti sisestamiseks.
• Valed tulemused: Verify that the correct mode (DEG/RAD/GRAD, Normal/Stat/Complex) is selected for your calculation. Ensure all previous calculations are cleared using ON/C enne uue alustamist.

7.2. Resetting the Calculator

If the calculator behaves erratically or freezes, a reset may resolve the issue. Locate the RESET button (a small recessed button, often requiring a thin object like a paperclip to press) on the back or front panel. Pressing this button will clear all memory and settings, returning the calculator to its factory default state.

8. Tehnilised andmed

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.

9. Garantii ja tugi

This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp websaidil või võtke ühendust oma klienditeenindusega.

You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.