Calculated Industries Construction Master 5 4050 - Calculator Settings and Functions; Stair Settings and Defaults; Miscellaneous Calculator Functions

Pocket RefeRence Guide
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j
Jack Key — Calculates Jack rafter
lengths on the Regular-pitched
roof side.
Qj
Irregular Jack — Calculates Jack
rafter lengths on the Irregular-
pitched roof side.
P
Rake-Wall Key —
Finds the
stud sizes based on entered Right
Triangle values and the stored
On-Center spacing. If a dimensional
value is entered before pressing
P , that value is considered the
base and will be added to the
stud lengths.
Stair Layout Key
s
Stair Key — Given Rise and/or
Run and entered/stored variables,
calculates or displays:
PRESS RESULT
1 Riser Height
2 Number of Risers
3 Riser Overage/Underage
4 Tread Width
5 Number of Treads
6 Tread Overage/ Underage
7 Stringer Length
8 Angle of Incline
9 Stored Run
10 Stored Rise
11 Stored Desired Riser Height
12 Riser Height 12 Stored Desired
Tread Width
STAIR DEFAULT VALUES
• 7-1/2” Desired Riser Height
• 10” Desired Tread Width
Stair Settings
You may set “desired Riser height” and
“desired Tread width” to any value by using the
following keys:
Q7
Riser Height — Stores a desired
Riser height other than 7-1/2"
(default). For example, enter
190 mm:
190M .
Q9
Tread Width — Stores a desired
Tread width other than 10" (default).
For example, enter 300 mm:
300M .
Miscellaneous Functions
%
Percentage — Used to nd a given
percent of a number.
B
Backspace Key — Used to delete
entries one keystroke at a time
(unlike the
o function, which
deletes the entire entry).
Q*
1/x — Finds the reciprocal of a
number (e.g.,
8Q* 0.125).
Qx
Clear All — Returns all stored
values to the default settings. (Does
not affect Preference Settings.)
PRG4050E-A.indd 6
5/24/2013 2:14:06 PM