LOG114 - Calculator TEXAS INSTRUMENTS - Free user manual and instructions
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| Product Type | Scientific Calculator |
| Brand | Texas Instruments |
| Model | LOG114 |
| Display | 10-digit LCD with 2-digit exponent |
| Dimensions | 160 x 80 x 15 mm |
| Weight | 140 g (including batteries) |
| Power Source | 2 x LR44 button batteries |
| Battery Life | Approximately 12 months with normal use |
| Key Functions | Logarithmic (log, ln), exponential, trigonometric, hyperbolic, statistical, and algebraic functions |
| Memory | 7 independent memory registers |
| Programming | No programming capability |
| Case | Impact-resistant plastic casing with slide cover |
| Operating Temperature | 0°C to 40°C |
| Cleaning Instructions | Wipe with a dry, soft cloth. Do not use solvents or abrasive cleaners. |
| Safety Warnings | Do not immerse in water; keep away from direct heat and magnets. |
| Spare Parts | Batteries are user-replaceable; other parts are not intended for user service. |
| Repairability | Designed for long-term reliability; no user-serviceable parts except batteries. |
| Included Accessories | User manual, slide cover |
| Warranty | 1 year limited warranty |
Frequently Asked Questions - LOG114 TEXAS INSTRUMENTS
How do I replace the batteries in my LOG114?
Turn off the calculator, slide the battery cover off the back, and replace the two LR44 button cells with new ones, ensuring correct polarity. Press [RESET] after battery replacement to clear memory.
Can I use the LOG114 for logarithmic calculations?
Yes, the LOG114 is specifically designed for logarithmic and exponential calculations. Use the [log] and [ln] keys for common and natural logarithms, and [10^x] and [e^x] for antilogs.
What should I do if the calculator freezes or displays an error?
If the device freezes, press the [RESET] button on the back using a pointed object. For error messages, press [ON/C] to clear. If problems persist, replace the batteries.
What type of batteries does the LOG114 use and how long do they last?
The calculator uses 2 x LR44 button batteries. With normal daily use, they last approximately 12 months. Low battery is indicated by a dim display.
How do I clean and maintain my calculator correctly?
Clean the exterior with a dry, soft cloth to remove dust and fingerprints. Do not use liquids, solvents, or abrasive cleaners. Do not expose the calculator to high humidity or direct sunlight.
What mathematical functions are available on the LOG114?
The LOG114 provides a comprehensive set of scientific functions, including logarithms, natural logs, exponentials, trigonometric functions (sin, cos, tan), inverse trig, hyperbolic functions, square roots, powers, and basic statistical operations.
Is the LOG114 allowed for use in exams and tests?
The LOG114 is a non-programmable scientific calculator. The permission depends on your exam board. It generally complies with most institutions' rules, but always check with your exam organizer.
What is the warranty and how can I obtain technical support?
The calculator comes with a 1-year limited warranty against manufacturing defects. For support, contact Texas Instruments customer service with the model number, serial number, and purchase receipt.
How do I enter a negative number?
To enter a negative value, type the number first, then press the [+/-] key to toggle its sign. This is different from the subtraction key and avoids errors in calculations.
Can I connect the LOG114 to a computer?
No, the LOG114 is a standalone calculator without any connectivity ports. It is not designed for data transfer or external communication.
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USER MANUAL LOG114 TEXAS INSTRUMENTS
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Product information
Brand : TEXAS INSTRUMENTS
Model : LOG114
Category : Calculator