© 2022 Johnson Level & Tool — 1
GETTING STARTED
KEY DEFINTIONS / FUNCTIONS
BASIC FUNCTION KEYS
Arithmetic
operation keys .
0
—
9
Keys used for entering
and numbers .
Percent Key
: Four-function (+, –, x, ÷) percent key .
Off Key
: Turns all power off, clearing all non-
permanent registers .
On/Clear Key
: Turns on power . Pressing once
clears the display . Pressing twice clears all
temporary values .
Convert Key
: Used with the dimensional keys to
convert between dimensions or with other keys
to access special functions .
Square Root Key
: Used to find the Square Root
of a non-dimensional or area value .
Recall Key
: Used with other keys to recall stored
values and settings .
Memory Key
: Adds the displayed value to
Memory . Clears when the calculator is shut off .
+
%
Off
On/C
Conv
√ x
÷
−
=
•
×
M+
Rcl
