3
Checking And Adjusting Calibration
Calibration is your responsibility, check it often.
Although the L5 is an exceptionally rugged laser, it is well worth the effort
to check calibration before you first use it and then at regular intervals to
insure that you are doing the highest quality work possible. Always
check calibration if the laser has been handled roughly.
Calibration procedure.
Note: Refer to the picture on page 2 for a diagram of the "X" and "Y"
axis directions used during this calibration procedure.
1. Start with a tripod or stand that has been leveled (using a carpenter's
level) to allow the laser to be turned to different positions with minimal re-
leveling of the circular level vial. Attach the laser to the tripod or stand
approximately 50 feet (15m) from a wall or other stable vertical surface.
We will call the vertical surface the target. If the target has direct sunlight
on it, you may have to shade the surface to see the laser spot clearly.
2. Turn the entire laser so that either direction of the x-axis is aimed at
the target. Center the circular level vial and turn the laser on.
3. With the rotation stopped, point the laser spot at the target by
manually turning the rotating head and mark the beam center.
4. Return to the laser and rotate the entire unit 180 degrees so that the
opposite X-axis direction is aiming at the target. Re-center the bubble in
the circular level if necessary. Once again, point the laser spot at the
target by manually turning the rotating head and mark the beam center.
5. The difference between the two marks (if any) is double the difference
between how the laser is calibrated and true level for the X-axis. Half
way between these two marks is true level. Make a long level mark at
true level. If the difference between either outer mark and true level is
within your working tolerance, go on to step 8. If not, continue with the
next step.
14
Controls And Displays
1
Circular level vial
The circular vial indicates if the laser is rough leveled closely enough for
the automatic compensator to take over and maintain a precise level.
2
Leveling knobs
Use the leveling knobs to center the bubble in the circular level vial. The
leveling knobs are also used during vertical alignment (see pg. 10)
3
On / Off button
When the on / off button is pressed, the laser beam will be projected if
the circular level vial is centered. If the circular vial is not centered, the
leveling limit indicator will flash and the laser will not operate or spin.
4
Laser-on indicator
This display comes on when the laser beam is being projected.
5
Leveling Limit indicator
This indicator flashes if the circular level vial is not centered enough to
allow automatic compensation.
6
Low battery indicator
This indicator comes on when the batteries need to be replaced.
7
Vertical vial
The vertical vial is used to plumb the plane of laser light when the laser is
in the vertical mode (see pg. 10).
8
Battery charging jack
The charging jack is located inside the battery door next to the batteries.
A rechargeable battery kit is available from the factory.
9
Rotate / Scan Selector Button
Use this button to change from 360° rotation to a scanning beam pattern.
10
Slower Rotation / Narrower Scan Button
Slows the rotation or narrows the beam scan pattern width.
11
Faster Rotation / Wider Scan Button
Speeds-up the rotation or widens the beam scan pattern width.
12 13
X and Y Axis Calibration Ports
Access ports to calibrate the laser (see calibration procedure pg. 14/15)
14
Rotating Head
See note at top of picture on opposite page.
