2. After the laser has self-leveled, stop the head rotation. Turn
the head down so that the index mark on the head matches the
index notch on the laser.
3. Move the laser until the stationary beam is exactly on your
reference point. Allow it to self-level again.
4. Align the beam projecting from the top of the head to your
second reference point using the < or > keys (10 or 11). This
beam is 90° or square to the other vertical plane beam.
5. Start rotation of the head.
It is very important to check while you are using the
laser that it has not been moved and that your set-
ting is still accurate.
2.8 Manual slope
The A110 can be used to set a manual slope on X axis.
For slopes up to 10%, set up the laser in horizontal mode and
use the remote to set the slope following instructions below.
• Manual mode
1. Set the laser over a start point. Turn the laser so that X on
the top faces the direction of the slope. Sight along the X and
X' marks to align the X axis of the laser to the second point.
2. After turning the laser on and allowing it to self-level, press
(16). The LED next to it (19) will blink, indicating you're in
manual mode and can match slope in the X axis. The head
will start rotating.
3. Press < (10) on the keypad to set a positive slope in X and >
(11) to set a negative slope.
4. Press (16) to return to automatic mode.
IMPORTANT: In manual mode, the head will rotate
even if the laser is not leveled. The H.I. Alert func-
tion is not available when your laser is in manual
mode.
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3. Power
When battery power is low, the laser head will stop rotating and
the low battery LED next to the On/Off key will stay on (17).
Installing alkaline batteries
1. Use a coin or a screwdriver to remove the cover of the bat-
tery compartment at the back of the laser.
2. Insert two alkaline batteries (D size or LR20), following the
polarities indicated at the bottom of the battery compartment.
(The + contact is rounded and raised). When replacing the
batteries, change both at the same time.
3. Replace the compartment and tighten with a coin or screw-
driver.
4. Checking and adjusting your A110
THIS CHAPTER IS VERY IMPORTANT. Here are a few simple
instructions to check your A110 for calibration. Remember that
the laser is a precision instrument and that it is important that
you keep it calibrated and in proper condition.
The accuracy of your work is completely your responsibility and
you should check your instrument before beginning each job,
and especially after the instrument has taken a sharp jolt or
been dropped, or when temperature changes greater than 50
degrees F (28 degrees C) have occurred.
The laser has 3 axes: X and Y (horizontal) and Z (vertical), as
indicated on the top of the laser. Each end of each axis must be
checked for calibration. If needed, the axis can be calibrated,
carefully following the instructions. You can also take the laser
to a service center for calibration.
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