Calculated Industries 4215 - Manual (Page 54)

Accuracy/Display Your calculator has
an eleven digit display. This is made up
of seven digits (normal display) and
four digits for the fraction. In a standard
calculation, each calculation is carried
out internally to 10 digits and rounded
to a 7-digit standard display. If the next
undisplayed digit is five or more, the
5/4 rounding technique adds 1 to the
least significant digit in the display. If
the digit is less than five, no rounding
occurs.
“Error” When an incorrect entry is
made, or an answer is beyond the cal-
culator’s range, the word “Error” dis-
plays. To clear an error you must hit the
[On/C] key twice. When you have
determined what caused the error, re-
key the problem. An “Error” will also
occur if you enter a mathematical
impossibility such as division by zero.
Auto-Range If an “overflow” occurs due
to an input or calculation that use more
digits than the display’s standard 7-digit
range, the answer automatically displays
in the next larger unit (instead of show-
ing “Error”). i.e., 10,000,000 mm is
greater than the 7-digit range; therefore,
10,000 m is displayed instead. This auto-
A
PPENDIX
A
54 – ConcreteCalc™