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INTRODUCTION
If you build or design things you know the importance of
working with accurate dimensions. The most frustrating and
costly construction headaches can usually be traced to
dimensional errors.
The INCHMATE PRO is part of the new generation of Sonin
Feet-Inch-fraction Calculators helping people who work
with dimensions to simplify difficult and tedious calculations.
KEY P D INFORM TION
General Purpose Keys
Note: The key to be pressed appears between the left and
right brackets, e.g., [+] except when referring to numerals.
On/Off Turns calculator ON and OFF.
To save the battery, calculator will turn off
automatically after approximately 10 - 12
minutes of inactivity at which time the displayed
value and memory content will be cleared.
CE/CLR Press this key once clears the current entry.
Pressing it twice clears display to 0.
Memory register & default setting are not affected.
0 Enters the numbers 0 thru 9 into the display.
to
9
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KEY PAD INFORMATION
4321 Performs arithmetic operation.
5 Completes all previously entered arithmetic
operations and displays the result.
·Enters a decimal point.
2ND Activates the 2N Function for designated
keys. 2N function is indicated above keys.
%Percent is used to find a given percentage
of a number.
6
2ND X2 is used to take the square (quantity
multiplied by itself) of the number on the
display. No operation is performed if the
square of an area or cubic dimensioned
number is taken, Error will be displayed.
9
2ND Square Root - takes the square root
of a number. Error will display if you try
to take square root of a linear or volume
value.
Memory Keys
M+ If memory is clear, enters displayed quantity
into memory. If a value is already stored
in memory this will add displayed quantity
to memory.
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KEY PAD INFORMATION
2ND M+ Subtracts displayed quantity from
memory. The result is then placed in
memory.
RCL Me ory Recall retrieves data from
selected memory & displays it.
NOTE: To display & keep in memory
press [RCL] [ M+ ] . To display and
remove from memory press [RCL] [RCL].
2ND RCL CLEARS MEMORY without displaying it.
Other Functions Keys
Cost Cost is used when calculating the cost of
items.
%
2ND Restore Defaults allows the calculator to
restore ALL changed default values
(NOTE: effects Wt/Vol., fraction, stair,
rake, jack & hip/valley settings).
3
2ND p is used to insert the value of Pi
(3.141592) onto the display for use in
subsequent calculations, or for use as
part of a mathematical process.
0
2ND English/Metric Mode changes the first
function Imperial unit keys to their
corresponding metric unit functions.
It allows the user to enter a series of
