Texas Instruments TI-5018 bordlommeregner brugermanual

Indledning

This manual provides comprehensive instructions for the operation and maintenance of your Texas Instruments TI-5018 Desktop Calculator. Please read this manual thoroughly to ensure proper use and to maximize the lifespan of your device.

Billedbeskrivelse: En front view of the Texas Instruments TI-5018 Desktop Calculator. It features a black top panel with the Texas Instruments logo and a large, clear 12-digit LCD display. The main body of the calculator is silver-colored with dark gray rectangular buttons. Key labels visible include numbers 0-9, 00, decimal point, arithmetic operators (+, -, x, /), equals (=), CE (Clear Entry), C/AC (Clear All/All Clear), GT (Grand Total), MU (Markup), M+, M-, MR (Memory Recall), MC (Memory Clear), and an OFF button. A prominent blue '+' button is located at the bottom right.

Opsætning

Strømkilde

The TI-5018 calculator operates using a dual power system: solar power and a battery backup. For optimal performance, ensure the solar panel is exposed to sufficient light. The calculator also includes a pre-installed LR44 alkaline battery for use in low-light conditions or as a backup.

Installation/udskiftning af batteri

The calculator comes with one LR44 battery pre-installed. If the display becomes dim or unresponsive in low light, the battery may need replacement.

1. Turn the calculator OFF.
2. Find batterirummet på bagsiden af ​​lommeregneren.
3. Åbn batteridækslet med en lille skruetrækker.
4. Fjern det gamle LR44-batteri, og isæt et nyt. Sørg for korrekt polaritet (+/-).
5. Sæt batterirummets dæksel på igen og fastgør det.

Note: Bortskaf brugte batterier i henhold til lokale regler.

Betjeningsvejledning

Grundlæggende operationer

• Tænd: The calculator powers on automatically when exposed to light or by pressing any key if already in a low-power state.
• Sluk: Tryk på SLUKKET button to turn off the calculator and conserve battery life.
• Ryd indtastning (CE): Trykke CE to clear the last entered number without affecting previous calculations or memory.
• Clear All (C/AC): Trykke C/AC once to clear the current entry. Press it twice to clear all calculations and reset the calculator.
• Indtastning af nummer: Use the number keys 0-9 og 00 to input values.
• Decimaltegnet: Trykke . for decimal calculations.
• Aritmetiske operationer: Bruge + (tilføjelse), - (subtraktion), x (multiplikation), og / (division).
• Lige til: Trykke = for at vise resultatet af en beregning.
• Backspace: Brug ← key to delete the last digit entered.

Hukommelsesfunktioner

• Hukommelse Plus (M+): Tilføjer den viste værdi til hukommelsen.
• Hukommelse Minus (M-): Trækker den viste værdi fra hukommelsen.
• Memory Recall (MR): Viser den aktuelle værdi, der er gemt i hukommelsen.
• Memory Clear (MC): Sletter den værdi, der er gemt i hukommelsen.

Avancerede funktioner

• Grand Total (GT): Accumulates the results of all calculations performed using the = nøgle. Trykke GT for at vise den samlede sum.
• Markup (MU): Used for calculating selling prices based on cost and desired profit margin.

Opretholdelse

Rensning

Brug en blød, tør klud til at rengøre lommeregneren. Til genstridigt snavs, tør letampRengør kluden med vand og et mildt rengøringsmiddel, og tør derefter straks efter. Brug ikke slibende rengøringsmidler, opløsningsmidler, og spray ikke direkte på lommeregneren.

Opbevaring

Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, ensure the calculator is turned off.

Fejlfinding

• Skærmen er svag eller tom:
  • Sørg for, at solpanelet er udsat for tilstrækkeligt lys.
  • The battery may be low or depleted. Replace the LR44 battery as described in the "Battery Installation/Replacement" section.
• Calculator is unresponsive:
  • Tryk på C/AC button twice to clear all operations.
  • Check the battery. If the issue persists, try replacing the battery.
• Forkerte beregningsresultater:
  • Ensure numbers and operations are entered correctly.
  • Clear all previous calculations by pressing C/AC to gange.

Specifikationer

Garanti og support

For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Texas Instruments webwebstedet. Behold din købskvittering som købsbevis.