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OVERFLOW
ERROR
DETECTION
The overflow error checking system operates for the following miscalculations.
(1) When 9 digits number is listed as integral number.
(2) When the integral number of the result exceeds 8 digits in addition and subtraction.
(3) When the integral number of the result exceeds 8 digits in memory addition and subtraction.
(4) When the integral number of the result exceeds 16 digits in multiplication and division.
(5) When the integral number that is added to or subtracted from memory exceeds 8 digits.
(6) When division is performed and divisor is zero.
In above cases, the contents stored in the memory are retained except (3). In case of (3), the content
of memory
register become zero. When the overflow error is detected, all keys except G key are elec-
tronically locked, the indication will become zero and all decimal points turn on. Accordingly, to reset
the overflow error checking system, depress the G key.
el.
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