Power Supply; Brightness For Operation; Outdoors Or By The Window; Incandescent Lamp - Sharp COMPET QS-2130 Operation Manual

This calculator has a solar cell and is energized by electrical energy produced by the solar cell. The
solar cell converts luminous energy directly into electrical energy by utilizing the photovoltaic effect.

Brightness for operation

If the light exposed to the solar cell is insufficient, the calculator is not powered to operate.
With the brightness criterion below, operate the calculator at 150 Iux or more.

Outdoors or by the window:

Use the calculator where it is
not exposed to direct sunlight
but receives enough illumi-
nation for comfortable read-
ing.
Backup Battery
If the light exposed to the solar cell is insufficient (150 Iux or lower), the backup battery is turned on
automatically to operate the calculator.
8

POWER SUPPLY

Incandescent lamp:

Use the calculator wherever it
receives the same
nation as attained within 2.5
meters of a 100 Watts in-
candescent lamp.
Fluorescent lamp:
Use the calculator wherever
it receives the same illumi-
illumi-
nation as attained within 1.5
meters of a 15 Watts fluores-
cent lamp.