The document provides information on the precautions and specifications of an electronic calculator, including not pressing too hard against the LCD panel, not disposing of the battery in a fire, keeping the battery out of reach of children, not using or storing the product where fluids may splash onto it, etc.
The Sharp EL-R287 is an electronic calculator featuring a 12-digit operating capacity. It is powered by a built-in solar cell and a CR2032 lithium battery, with an automatic power-off function that activates after approximately 7 minutes of inactivity.
This manual covers basic arithmetic operations and specialized cost/selling/margin calculations. Users can determine the cost price, selling price, or margin percentage using specific key sequences. The device includes a kick stand support and operates within a temperature range of 0°C to 40°C.
| Operating capacity | 12 digits |
|---|---|
| Power supply | Built-in solar cell and lithium battery (CR2032 x 1) |
| Automatic Power-off | Approx. 7 min. |
| Operating temperature | 0°C - 40°C (82°F-104°F) |
| Dimensions | 108mm(W) x 170 mm(D) x 15mm(H) |
Press [C] twice to clear any residual values and calculation instructions.
If "E" is displayed, press [C] to clear the error condition.