1. Introduktion
The MAUL Commercial Calculator MXL16 is designed for commercial use, offering a stable and resilient build with an extra-large case (20.5 x 15.5 cm) for comfortable operation. It features a large, angled 16-digit display for improved readability and large, distinctively colored buttons for quick and accurate input. This calculator combines precision and reliability for both desk and mobile use.
Nøglefunktioner omfatter:
- 16-digit LCD display with 1 line.
- Angled display for optimal viewing.
- Solar and battery powered (LR44 battery included).
- Automatic shut-off to conserve energy.
- Comprehensive functions including tax calculation, 3-button memory, root calculation, and percentage.
- Durable plastic buttons for easy cleaning.
2. Opsætning
2.1 Strømkilde
The MAUL MXL16 calculator operates using both solar power and a single LR44 battery. The solar panel provides power in well-lit environments, while the battery ensures operation when light is insufficient. An LR44 battery is included with the calculator.

Figur 2.1: Bund view of the calculator, indicating the battery compartment.
2.2 Førstegangsbrug
Upon first use, ensure the calculator is exposed to adequate light for solar power or that the included LR44 battery is correctly installed. The calculator features an automatic shut-off function to conserve power when not in use.

Figur 2.2: Side view showing the angled display for better reading.
3. Betjeningsvejledning
The MAUL MXL16 calculator provides a range of functions for commercial calculations. The buttons are color-coded for easier identification and faster operation.

Figur 3.1: Display and key layout of the MAUL MXL16.
3.1 Grundlæggende betjening
- ON/AC: Turns the calculator on or clears all entries and memory.
- CE/C: Clears the last entered number or the current calculation without affecting memory. Pressing twice may clear all.
- Nummertaster (0-9): Indtast numeriske værdier.
- Decimaltegn (.): Indtaster et decimaltegn.
- Aritmetiske operatorer (+, -, ×, ÷): Udfør addition, subtraktion, multiplikation og division.
- Lig med (=): Displays the result of a calculation.
3.2 Specialfunktioner
- Tax Calculation (TAX+, TAX-): Allows for easy calculation of prices with or without tax. Use the SET button to configure the tax rate.
- Memory Functions (MR, M-, M+):
- M+: Tilføjer den viste værdi til hukommelsen.
- M-: Trækker den viste værdi fra hukommelsen.
- MR: Genkalder den værdi, der er gemt i hukommelsen.
- MC: Clears the memory (often by pressing MR twice or a dedicated MC button).
- Root Calculation (√): Beregner kvadratroden af det viste tal.
- Procenttage (%): Udfører procenttage beregninger.
- Fortegnsændring (+/-): Ændrer fortegnet for det viste tal (positivt til negativt eller omvendt).
- Double Zero (00) / Triple Zero (000): For quick entry of multiple zeros.
- Comma Selector Switch: Adjusts the decimal point display.
- Automatic Rounding: Allows selection of how numbers are rounded (e.g., up, down, or standard).

Figur 3.2: User interacting with the calculator keys.
4. Vedligeholdelse
The MAUL MXL16 calculator is designed for durability with sturdy plastic buttons that are easy to clean.
- Rensning: Use a soft, dry cloth to wipe the calculator's surface and keys. For stubborn dirt, a slightly damp en klud med mild sæbe kan bruges, så det sikres, at der ikke kommer væske ind i enheden.
- Opbevaring: Opbevar lommeregneren et køligt, tørt sted væk fra direkte sollys og ekstreme temperaturer.
- Udskiftning af batteri: If the display becomes dim or the calculator functions intermittently in low light, the LR44 battery may need replacement. Refer to the battery compartment on the underside of the calculator for access.
5. Fejlfinding
- Lommeregneren tænder ikke:
- Sørg for, at lommeregneren er udsat for tilstrækkeligt lys til at kunne bruge solenergi.
- Check if the LR44 battery is correctly installed and has sufficient charge. Replace if necessary.
- Forkerte beregninger:
- Press the ON/AC button to clear all previous entries and memory, then re-enter the calculation.
- Verify the correct input of numbers and operations.
- Displayet er svagt eller flimrende:
- Ensure adequate lighting for the solar panel.
- Udskift LR44-batteriet.
6. Specifikationer
| Modelnavn | MXL16 |
| Modelnummer | 7267890 |
| Vise | 16 Digits, 1 Line LCD, Angled |
| Dimensioner (L x B) | 20.5 x 15.5 cm |
| Strømkilde | Solar and 1 x LR44 Battery (included) |
| Materiale | Plastic (housing and buttons) |
| Funktioner | Tax calculation, 3-button memory, Root, Percent, Sign change, Automatic rounding, Double/Triple zero buttons, Comma selector switch |
| Automatisk sluk | Ja |
7. Garanti
The MAUL Commercial Calculator MXL16 comes with a 5 års garantiGem venligst din købsbevis i tilfælde af garantikrav. Garantien dækker fabrikationsfejl under normale brugsforhold.
8. Support
For further assistance, technical support, or warranty inquiries, please contact your retailer or the MAUL customer service department. Refer to the product packaging or the MAUL official webwebsted for kontaktoplysninger.