Instruction Manual

3 – User’s Guide
Key Definitions/Functions
[Off/On] – Power On/Off switch
Turns power On or Off. Turning
power Off does not clear scales or
modes.
[Lock] – Lock switch
Locks the mode and scale so they
cannot inadvertently be changed.
[Subtract/Count] – Subtract/Count key
Toggles measuring mode between
positive and negative direction.
Increases the Count value by one.
Count function is active in the
count mode.
[Rcl] – Recall key
Recalls stored values. Press [Rcl] [Rcl]
to recall the last rolled value.
[Mode] – Mode key
Used to toggle between the follow-
ing scale modes (in sequence):
1) Architectural (
ARCH);
2) Engineering I (
ENG I);
3) Engineering II (
ENG II);
4) Custom (
CUSTOM);
5) Count (
COUNT).
[Scale] – Scale key
Used to toggle between various
scales within each scale mode.
[M1+] – Memory Add key (Length)
Adds the displayed value to memory.
This key is used to store a length in
order to calculate an area.