Johnson CALC-1500, Operator'S Manual

Page: 12 / 48

© 2022 Johnson Level & Tool — 7
GETTING STARTED
STAIR SETTINGS
You may set “desired Riser height” and “desired Tread
width” to any value by using the following keys:
Riser Height : Stores a desired Riser
height other than 7-1/2" (default) .
For example, enter 4 Inches:
4
Inch
Conv
7
.
Tread Width : Stores a desired Tread width
other than 10" (default) . For example,
enter 24 Inches:
2 4
Inch Conv
9
.
MISCELLANEOUS FUNCTIONS
Backspace Key : Used to delete entries
one keystroke at a time (unlike the
On/C
function, which deletes the entire entry) .
1/x : Finds the reciprocal of a number
(e .g .,
8 Conv ÷
0 .125) .
Clear All : Returns all stored values to
the default settings . (Does not affect
Preference Settings .)
(+/–) Toggle
Pi (
π
) 3 .141593
Conv
Conv
Conv
Conv
Conv
Conv
÷
×
–
+
7
9