1. Einleitung
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. Erste Schritte
2.1. Einlegen der Batterie
The Sharp EL501X2BWH calculator operates on two LR44 batteries (included). To install or replace batteries:
- Stellen Sie sicher, dass der Taschenrechner ausgeschaltet ist.
- Suchen Sie die Abdeckung des Batteriefachs auf der Rückseite des Taschenrechners.
- Remove the cover using a small screwdriver.
- Insert two new LR44 batteries, observing the correct polarity (+/-).
- Bringen Sie den Batteriefachdeckel wieder fest an.
Notiz: Always use fresh batteries and dispose of old batteries responsibly.
2.2. Ein- und Ausschalten
- Um den Taschenrechner einzuschalten, drücken Sie die Taste EIN/C Taste.
- To turn off the calculator, press the 2. F Klicken Sie auf die Schaltfläche AUS Taste.
2.3. Anzeige überview
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. Grundlegende Bedienung
3.1. Arithmetic Calculations
Perform basic arithmetic operations using the number keys and the +, -, ×, Und ÷ Tasten. Drücken Sie = um das Ergebnis anzuzeigen.
- Exampauf: Um 15 + 7 zu berechnen: Drücken Sie 1 5 + 7 =Auf dem Display erscheint 22.
3.2. Clear Functions
- Drücken CE to clear the last entered number or operation.
- Drücken EIN/C to clear all entries and reset the calculator to its initial state (except memory).
4. Wissenschaftliche Funktionen
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
Verwenden Sünde, cos, bräunen for standard trigonometric calculations. Their inverse functions (Sünde-1, cos-1, bräunen-1) are accessed via 2. F.
The angle unit can be changed using the DRG Taste. Drücken Sie DRG repeatedly to cycle through DEG (degrees), RAD (radians), and GRAD (gradients).
4.2. Logarithmic and Exponential Functions
- Logarithmen: Verwenden Protokoll (Basis 10) und ln (natürlicher Logarithmus).
- Exponentials: Verwenden 10x (Zugriff über 2. F Und Protokoll) Und ex (Zugriff über 2. F Und ln).
4.3. Powers and Roots
- Quadrat: Verwenden x2.
- Quadratwurzel: Verwenden √ (Zugriff über 2. F Und x2).
- Allgemeine Leistung: Verwenden yx.
- Reciprocal: Verwenden 1/x (Zugriff über 2. F Und yx).
4.4. Factorials
Calculate factorials using the n! function (accessed via 2. F Und CPLX).
5. Erweiterte Funktionen
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, →BIN, →DEC, →HEX).

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".
Verwenden Sie die Daten-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. Speicherfunktionen
The calculator has one independent memory. Use the following keys:
- M+: Fügt den angezeigten Wert dem Speicher hinzu.
- STO: Stores the displayed value into memory.
- RCL: Recalls the value from memory to the display.
6. Wartung und Pflege
6.1. Reinigung
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 oder interne Komponenten.
6.2. Speicherung
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. Fehlerbehebung
7.1. Häufige Probleme
- Der Taschenrechner lässt sich nicht einschalten: Überprüfen Sie den Batterieeinbau und stellen Sie sicher, dass die Batterien nicht entladen sind. Tauschen Sie die Batterien gegebenenfalls aus.
- "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 EIN/C Um den Fehler zu beheben und die Berechnung erneut einzugeben.
- Falsche Ergebnisse: Verify that the correct mode (DEG/RAD/GRAD, Normal/Stat/Complex) is selected for your calculation. Ensure all previous calculations are cleared using EIN/C before starting a new one.
7.2. Resetting the Calculator
If the calculator behaves erratically or freezes, a reset may resolve the issue. Locate the ZURÜCKSETZEN 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. Spezifikationen

Image 8.1: The Sharp EL501X2BWH calculator showing its physical dimensions.
| Besonderheit | Detail |
|---|---|
| Modellnummer | EL501X2BWH |
| Rechnertyp | Ingenieurwesen/Wissenschaft |
| Anzeige | 10-digit, 1-line LCD |
| Anzahl der Funktionen | 131 |
| Stromquelle | Batteriebetrieben (2 x LR44 im Lieferumfang enthalten) |
| Erinnerung | 1 independent memory |
| Abmessungen (BxHxT) | 3.1 x 5.7 x 0.5 Zoll (ungefähr) |
| Artikelgewicht | 3.84 Unzen |
| Sonderfunktionen | N-base Calculation (HEX, DEC, BIN, OCT), Complex Number Calculation, 1-Variable Statistics |
9. Garantie und Support
This Sharp calculator is manufactured by Sharp Electronics. For warranty information, technical support, or service inquiries, please refer to the official Sharp webWebsite oder wenden Sie sich an die Kundendienstabteilung.
You can find more information about Sharp products and support at the official Sharp store: Sharp Calculators Store.





