14
may be visible, but the laser is designed to be used with a receiver.
HOW: The laser should be setup in a stable manner, typically mounted on a tripod. The
solid or ashing green leveling LED (d) conrms the automatic self-leveling mode. The
laser always starts in automatic mode when turned on.
Pic 8 Horizontal automatic mode
9 Horizontal manual mode
WHY: For some applications the user may require a non-leveled laser plane. This can
be used to align non-leveled elevations or reference hubs. The laser can be sloped in
both axes when in horizontal manual mode.
WHAT: When in manual mode the laser does not self-level. The laser does not use any
sensors for horizontal leveling or for grade. There is no control for the grade accuracy
and no warning for the Height of the Instrument (HI-alert).
HOW: In horizontal mode press the manual button (c) on the laser or remote control
once to change from automatic self-leveling mode to manual mode. Manual mode is
indicated by the ashing red LED (e) once every second.
In manual mode (horizontal), the Y-axis can be sloped by pressing the Up or Down
arrow button (f) on the laser keypad or remote control. The X-axis can be sloped by
pressing the Left or Right arrow button (t) on the laser keypad or remote control.
Manual mode is indicated on the laser and remote control display by horizontal lines
next to the axis symbols and the letter M (pic 9) as well as the blinking manual LED (e).
A manual inclination of the laser using a tilting base, a tripod or similar accessory is
possible in the manual mode.
To resume automatic self-leveling, press the manual button once again, so the green
leveling LED (d) is on and the laser self-levels.
Pic 9 Horizontal manual mode
Note: In horizontal manual mode, it is mandatory the user watch the laser plane for
any unforeseen behavior since there is no warning for the height of instrument or any
changes caused by wind, vibrations or temperature changes.
10 Grade
10.1 Grade Input
WHY: Jobsite often requirement sloped grades for drainage and other reasons. The
grade laser eliminates time consuming and error prone distance vs. height calcula-
tions. Just align the laser in the grade direction, and input desired grade into the laser.
WHAT: The GL1425C automatically levels to the specic grade value that is entered.
HOW: Option 1: Digit Select Mode (Default)
Press and release M button (h) to open the menu. >>Grade<< will be shown, Press
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