Cooper Hand Tools LUFKIN LCL4 - Manual (Page 8)

Page 8
OPERATION
Horizontal, Vertical, Plumb & Cross Line Options
The LCL4 has three line options, accessible by using the line options button located on
the top of the instrument. If the unit has been turned on, the plumb up and down beams
will always be on. Use the line option button to cycle through the level (horizontal), plumb
(vertical) or cross line modes, as shown below.
Auto-Off Feature
A battery saving Auto-Off feature has been incorporated into the LCL4. It will shut the device
off automatically after 60 minutes unless overridden. To disable the Auto-Off feature press
and hold the line options button when turning the unit on. The green LED will flash twice per
second to indicate the Auto-Off feature has been disabled.
Low Battery Indicator
When the battery charge becomes low, the red LED will flash twice per second. Note: the
LCL4 can be used for up to one hour during low battery indication before it will turn off
completely.
Pulse Mode
Pressing the pulse mode button, will place the unit into pulse mode so that it can work
with optional laser detector. Pressing the button again, returns to non-pulse mode. In pulse
mode, the Pulse Mode LED will be on.
Default line
Horizontal & Plumb up and down line
Cross & Plumb up and down line Cross & Plumb up and down line locked
Vertical & Plumb up and down line
Press 2x
Press 1x