– 5 –
– 9 –
– 2 –
– 6 –
– 10 –
– 3 –
– 7 –
– 11 –
– 4 –
– 8 –
– 12 –
Features and Functions
12. X Axis Calibration Screw—
allows the X axis of the laser
to be adjusted so that the
laser beam is level.
13. Y Axis Calibration Screw—
allows the Y axis of the laser
to be adjusted so that the
laser beam is level.
14.
5
/8-11 Tripod Mount—
allows the laser to be
attached to a standard
5
/8-11 construction tripod.
Recharging the Batteries (cont.)
Setting Up and Leveling the Laser
Note: Left-thumb rule—both
thumbs in, both thumbs out,
the bubble follows the left
thumb.
Determining the Height of Instrument (HI)
The height of instrument (HI) is the elevation of the laser’s beam. The
HI is determined by adding the grade-rod reading to a benchmark or
known elevation.
1. Set up and level the laser.
2. Attach the receiver to a grade rod and turn on the receiver.
3. Place the grade rod on a job-site benchmark (BM) or known
elevation.
4. Slide the receiver up/down the grade rod until the LCD shows an
on-grade reading.
5. Add the grade-rod reading to the benchmark to determine the
height of instrument.
Example: Benchmark elevation = 100.23 ft (30.55 m)
On-grade rod reading = + 4.34 ft (1.32 m)
Height of instrument = 104.57 ft (31.87 m)
6. Use this HI as a reference for all other elevations.
Checking Calibration
2. Raise/lower the receiver until
you get an on-grade reading
for the –Y axis. Using the
on-grade marking notch as a
reference, make a mark on
the wall.
Note: For increased precision,
use the fine-sensitivity setting
(+
1
/16 in./ +1.5 mm) on the
receiver.
5. Measure the difference
between the two marks. If
they differ more than
1
/8 inch
at 100 feet (3.0 mm at 30 m),
the laser needs calibrating.
Note: The arrows on the
display show which direction
the calibration screws need
turning. An up arrow on the
receiver indicates that the
Y axis calibration screw needs
to be turned clockwise to
lower the laser plane. A down
arrow on the receiver
indicates that the Y axis
calibration screw needs to be
turned counterclockwise to
raise the laser plane.
8. Rotate the laser 180° back to
the original face. Make sure
this axis is less than
1
/16 in.
(1.5 mm) from the midpoint
line.
Note: If additional adjustment
is required, repeat steps 2-7
above.
9. After adjusting the Y axis,
rotate the laser 90°. Repeat
steps 2-8 starting with the
–X axis facing the wall.
LL500 Laser Level
User Guide
www.trimble.com
•
⑫
Y+
X+
Y-
X-
HI
Rod Reading
4.34 (1.32 m)
Benchmark
100.23 (30.55 m)
HI = Rod Reading + Benchmark
HI = 4.34 + 100.23 = 104.57 (1.32 m + 30.55 m = 31.87 m)
Height of Instrument (HI)
Y+
X+
Y-
X-
100 (30 m)
-Y
100 (30 m)
-Y
Y
1
100 (30 m)
+Y
100 (30 m)
+Y
Y
2
> 1/8 in. (> 3.0 mm)
Y 2
Y 1
Y 3
Y 1
Y 2
100 (30 m)
-Y
Up arrow-
turn calibraon
screw clockwise
Down arrow- turn
calibraon screw
counter clockwise
Y 3
Y 3
1. Power Button—turns the laser
on/off.
2. Handle—allows you to carry
the laser easily.
3. Battery Housing—holds four
D-cell alkaline or Ni-Cd
batteries.
4. Battery-Recharging Jack—is
the port that an optional
battery recharger plugs into.
5. Low-Battery LED—flashes
when the batteries need replacing or recharging.
6. Rotating Prism—spins at 600 rpm to transmit the laser signal.
7. Bull’s-Eye Level—provides an easy reference for leveling the
laser.
8. Leveling Screws—turn clockwise/counterclockwise so the laser
can be leveled.
9. Leveling Base—supports the laser while it’s on the tripod. The
leveling base also allows you to use the laser freestanding.
10. Lighthouse—is a 360° exit window for the laser beam. The
lighthouse is sealed and protects the internal components from
the environment.
11. Out-of-Level LED—flashes when the laser is out of its self-
leveling range.
How to Use the Laser System
Batteries
Installing/Removing the Batteries
1. Turn battery-housing
screws counterclockwise and
remove the battery housing.
A universal key (supplied) or
coin can be used to turn the
screws.
2. Install/remove the batteries.
Note: When installing the batteries, be sure to note the positive
(+) and negative (–) diagram inside the housing.
Note: The laser has reverse-polarity protection. If the batteries are
put in wrong, no damage occurs to the laser but it does not work.
Allow it one minute to recover after the batteries have been
installed correctly.
3. Put the battery housing in place and reinstall the screws.
Recharging the Batteries
Several optional battery rechargers are available, including ones that
plug into a wall outlet and one that uses solar power.
If you use the A/C battery rechargers, such as Model 1041 (110 V) or
Smart Charger Model 1041S/1041N (110/220 V), recharge the laser
overnight after every third day of use. More frequent recharging may
be needed if you use the laser for long periods during the day or in
colder climates.
Note: Do not recharge alkaline batteries. Trying to recharge them
does not damage the laser but doing so might blow the battery-
protection fuse in the battery pack.
1. Plug the battery recharger’s
plug into the laser’s battery
recharging jack.
2. Plug the battery recharger
into the wall outlet.
Note: A full charge will be
reached in 12-14 hours or 10
hours using the smart charger.
1. Set up a tripod to the height
appropriate for your
application needs.
2. Insert the
5
/8-11 tripod screw
into the laser’s
5
/8-11
threaded insert.
Note: The laser can also be
attached to a column clamp
or other mounting device.
3. Turn the screw to hold the laser securely in place.
4. Press the power button.
Note: When the laser is initially turned on, the out-of-level LED
flashes to show that the laser
needs leveling.
5. Using the left-thumb rule (see
the Note that follows), turn
both X axis screws equal
amounts in opposite
directions to move the bubble
toward the center of the
bull’s-eye.
6. Observe the location of the
bubble (top or bottom of the
bull’s-eye) and using the left-
thumb rule, turn the Y axis
screw to move the level
bubble so that it is centered in
the bull’s-eye.
Note: When the laser is level,
the bubble is centered in the bull’s-eye and the out-of-level LED
stops flashing and the laser’s rotor begins rotating.
Note: If the laser is knocked out of its self-leveling range, the out-
of-level LED start flashing, the rotor stops, and the beam reference
plane turns off.
7. To restore level, simply re-level the laser and check your initial
reference elevation.
Note: The unit may also be set free-standing on any stable surface.
To check the horizontal
calibration, you’ll need a tripod
with a
5
/8-11 threaded mount,
hand-held receiver, and
1
/16 in.
(1.5 mm) diameter pin or small
nail. If you need to adjust the
calibration, having another
person to help saves time.
1. Set up and level the laser 100
ft (30 m) from a wall.
4. Raise/lower the receiver until
you get an on-grade reading
for the +Y axis. Using the
on-grade marking notch as a
reference, make a mark on
the wall.
3. Rotate the laser 180° (+Y axis
toward the wall) and re-level
the laser.
6. To correct for a calibration
error, position the receiver
at the midpoint of the two
elevation marks on the wall.
Note: Although you can
calibrate the laser by yourself,
having another person to help
saves time.
7. To adjust the calibration,
insert a nail (
1
/16 in. or 1.5
mm diameter) into the
opening in the calibration
screw and turn the screw in
the appropriate direction.
⑬
⑭
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
⑪
①
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