Overflow Error; How To Replace The Battery - Sharp DIGITAL RULE PC-1802 Instruction Manual

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Note:
In memory calculation, when the integer portion of sum or difference
exceeds 8 digits the content of memory register is cleared.
8.
OVERFLOW ERROR
An overflow error will occur in the following cases.
1,
When the integer portion of listed number exceeds 8 digits,
2.
When the integer portion of sum, difference, product or quotient
exceeds 8 digits.
3,
When a number is divided by zero.
4.
When the number beyond the entry number range specified at the end of
this manual is entered in the calculations of specific functions.
When an overflow error is detected, all the decimal points and a zero are
displayed. An overflow error electronically interlocks all keys except the c
key. Overflow error is released by pressing the (Cj key.
9.
HOW TO REPLACE THE BATTERY
Turn off the power source switch.
1.
Hold the unit with its display part facing down.
2.
Put a coin into a groove on the side of the unit to release the hook
inside the unit (Fig. 1)
16
3. Take out the battery case. (Fig.2)
Fig. 1
Fig. 2
CAUTIOM
In case you do not use this calculator for a long time, please take out the
batteries and preserve them in a dry, cool and shady place.
*
HINTS
1.
As highly sensitive LSIs and electronic components are used, avoid
placing the unit in hot, dusty, humid locations or the place exposed to
direct sunlight.
2.
Do not jolt or drop the unit.

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