Laser Setup; Turning On/Off The Laser - Spectra GL422 Mode D'emploi

Laser Setup

Position the laser horizontally (tripod mount and rubber feet downward!) on a stable platform, wall mount
or tripod at the desired elevation.
The laser recognizes automatically whether it is used horizontally or vertically when switched on.

Turning On/Off the Laser

Press the power button to turn on the laser.
GL422 – Display
The LEDs (2, 4 and 5) are turned on for 2 seconds. At the LCD, the last used grade values, the mask mode
status and the antenna symbol will be displayed.
Note: The laser always powers up in the automatic self-leveling mode with 600 rpm and the last-
entered grade.
The laser is level when the leveling indicator 4 is no longer flashing (once every second) and the grade values
at the laser's and remote control's LCD are not flashing.
For the first five minutes after the laser self levels, the LED 4 lights solid then flashes every four seconds
to let you know the laser is still level.
Repeatedly pressing and releasing the up and right arrow buttons simultaneously toggles the rotation speed
between 300 and 600 rpm (GL412/GL422), and 0 rpm (GL422).
At 0 rpm (GL422), the beam stops on the opposite side of the keypad. With the left and right arrow buttons, the
beam can be adjusted in line with the sighting guides for "Over the Top" pipe laying applications.
Note: If the temperature changes after the laser has been turned on by more than 5 degrees C (10
degrees F) the laser will compensate for the temperature change by resetting the leveling system.
During a temperature compensation reset, the grade display flashes, rotation stops and the laser
beam turns off. When the temperature compensation reset has been finished, a new grade value
can be dialed into the unit. If desired, an additional temperature compensation reference check can
be initiated anytime by simultaneously pressing the right and down arrow buttons at the transmitter
or the remote control.
Note: When the laser is set up vertically and turned on, the rotor centers in its line range automatically.
The LCD indicates line can be adjusted by using the up/down (/) buttons.
If the laser is positioned beyond its self-leveling range of ±9%, the manual and leveling indicators flash
simultaneously and a warning sound is emitted. Turn the unit off, reposition the laser within the self-leveling
range and turn it on again.
Note: If the laser is out of its self-leveling range and remains out of it for more than 10 minutes, it
shuts down completely.
HI alert:
After the laser has been level for more than 5 minutes, the HI (height of instrument) alert activates. If the laser
is disturbed (tripod bumped, etc.) so that when it re-levels the laser beam elevation changes by more than
3 mm (1/8 in.), the HI alert shuts down the laser and rotor, a warning sound occurs and the red LED flashes
two times per second (twice the manual-mode rate). In a HI condition, a HI and flashing dashed lines appear
at the laser's and remote control's LCD. To restore level, turn the laser off and on.
After the laser has re-leveled, check your initial reference elevation.
Note: The HI-alert condition can also be deleted by activating/deactivating the Standby mode with
the remote control.
In order to switch the laser off, press the power button again.
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GL412 – Display
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