Lasermark LMH User manual

LMH Series Rotary Lasers • 1
LMH Series Electronic
Self-Leveling Rotary Laser
LMH | LMH-C | LMH-GR | LMH600
INSTRUCTION MANUAL
57-LMH Shown

2 • LMH Series Rotary Lasers
Copyright© 2002-2006 CST/berger. All rights reserved
The information contained herein is proprietary information of CST/berger, and is subject to
change without notice. CST/berger is a division of Stanley Works®
This document shall not be copied or otherwise reproduced without CST/berger's written consent.

LMH Series Rotary Lasers • 3
Thank you for purchasing the LaserMark®LMH Electronic Self-Leveling
Rotary Laser. Please read this manual thoroughly before operation.
CONTENTS
1. LMH Features..................................................................................4
2. Laser Safety ....................................................................................7
2.1 Electrical safty procedures...............................................................................8
2.2 Certifications.....................................................................................................9
2.3 Environment Protection ..................................................................................9
3. LMH Operation ...............................................................................9
3.1 Leveling.............................................................................................................9
3.2 Re-leveling ......................................................................................................10
3.2.1 Axis Drive Error (Spindle Error).......................................................................10
3.3 Anti-Drift System (ADS)...................................................................................10
3.4 Grade Mode: Single Axis Grade (LMH-GR and LMH600 Only) .........................11
3.5 Grade Mode: Dual Axis Slope (LMH600 Only)..................................................13
4. LMH Applications .........................................................................14
4.1 Procedures for Ceiling Grid Applications.......................................................14
4.2 Procedures for Laydown Applications...........................................................15
4.3 Procedures for General Construction Applications ......................................16
5. LMH Battery Replacement.........................................................17
6. LMH Calibration............................................................................18
6.1 Upright Position Peg Test (X axis) ..................................................................18
6.1.2 Upright Position Calibration - X axis (LMH, LMH-C, LMH-GR) .........................19
6.1.3 Upright Position Peg Test and Calibration - Y axis (LMH, LMH-C, LMH-GR)...20
6.2.1 Upright Position Calibration (LMH600)...........................................................21
6.2.2 Laydown Position Calibration (LMH600).........................................................22
7. Care of LMH Instrument ............................................................ 23
8. LMH Series Specifications ..........................................................23
9. Troubleshooting ..........................................................................24
10. Warranty .......................................................................................26
11. Universal Laser Detector............................................................27
12. Remote Control ...........................................................................30

4 • LMH Series Rotary Lasers
1.1 LMH AND LMH-C FEATURES
ANTI-DRIFT
SYSTEM
POWER
MANUAL
Automatic Self-Leveling
Rotary Laser
LMH
ANTI-DRIFT
SYSTEM
POWER
MANUAL
Automatic Self-Leveling
Rotary Laser
LMH
Battery Compartment Access/
5⁄8" x 11 Tripod Mounting Thread
Rotating Laser Head
Anti-Drift
System On
LED
Power On LED
Built-In
Handle
Battery Low LED
Power On/Off
Button
Anti-Drift
System
On/Off
Button
Manual
Mode
SIDE VIEW
LOCATION OF
CALIBRATION BUTTONS

LMH Series Rotary Lasers • 5
1.2 LMH-GR FEATURES
POWER
LMH
-GR
ANTI-DRIFT SYSTEM
LEVEL ON/OFF
Manual
Grade Setting
POWER
LMH
-GR
ANTI-DRIFT SYSTEM
LEVEL ON/OFF
Manual
Grade Setting
Battery Compartment Access/
5⁄8" x 11 Tripod Mounting Thread
Rotating Laser Head
Anti-Drift
System On
LED
Power On LED
Built-In
Handle
Battery Low LED
Power On/Off
Button
Manual Grade Button
(See LMH600)
Anti-Drift
System
On/Off
Button
Manual
Grade
Adjustment
Buttons
SIDE VIEW
LOCATION OF
CALIBRATION BUTTONS

6 • LMH Series Rotary Lasers
1. LMH600 FEATURES
LMH600 Self-Leveling Rotary Laser
Battery Compartment Access/
5
⁄ 8 " x 11 Tripod Mounting Thread
Self-Leveling
Rotating Laser Head
Battery Low LED
Power On LED
Variable Speed
Rotation Button
Four Speed Selection.
Speed Decreases
Each Time Button is Pressed
Power On/Off
Button
Out-of-Level Indicator LED
Scan Mode Button
Scanning to Preset
Angles of 10º, 15º,
45º, 90º and 180º to
Increase Visibility
Manual Grade Button
Turns unit to manual
mode to allow
manual grade setting
Head Positioning Button
for Fast and Easy
Alignment in Vertical/
Horizontal Applications,
Clock-Wise and Counter-
Clock-Wise Rotation.
Pressing and Holding
Button Moves the
Rotating Beam more Quickl
y
Auto Beam Positioning
Button. Positions the
Laser Dot in Plumb
Down Position
(Vertical Mode), for
Vertical Laydown Set-ups
Button also used in normal
operation to activate ADS
Manual Grade/Slope
Setting Buttons
LOCATION OF
CALIBRATION BUTTONS
LMH600 Self-Leveling Rotary Laser
X
Y
LMH600 Shown

LMH Series Rotary Lasers • 7
2. LASER SAFETY
WARNING: Be sure to read and understand all instructions in this
manual before using this product. Failure to follow all
instructions may result in hazardous radiation exposure, electric
shock, fire, and/or bodily injury.
CAUTION: Use of controls or adjustments or performance of
procedures other than those specified in this manual, may result
in hazardous radiation exposure.
CAUTION: The use of optical instruments with this product will
increase eye hazard.
IMPORTANT: The following labels are on your LMH for your
convenience and safety. They indicate where the laser light is emitted
by the level. ALWAYS BE AWARE of their location when using the level.
ALWAYS make sure that any bystanders in the vicinity of use are made
aware of the dangers of looking directly into the LMH.
DO NOT remove or deface any warning or caution labels. Removing
labels increases the risk of exposure to laser radiation.
DO NOT stare directly at the laser beam or project the laser beam
directly into the eyes of others. Serious eye injury could result.
DO NOT place the LMH in a position that may cause anyone to stare
into the laser beam intentionally or unintentionally. Serious eye injury
could result.
DO NOT use any optical instruments such as, but not limited to,
telescopes or transits to view the laser beam. Serious eye injury could
result.
ALWAYS remove the batteries when cleaning the laser light aperture
or laser lens.
DO NOT operate the LMH around children or allow children to operate
the LMH. Serious eye injury could result.

8 • LMH Series Rotary Lasers
ALWAYS turn the LMH "OFF" when not in use. Leaving the LMH "ON"
increases the risk of someone inadvertently staring into the
laser beam.
DO NOT operate the LMH in combustible areas such as in the presence
of flammable liquids, gases or dust.
ALWAYS position the pipe laser tool securely. Damage to the LMH
and/or serious injury to the user could result if the LMH falls.
ALWAYS use only the accessories that are recommended by the
manufacturer of your LMH. Use of accessories that have been
designed for use with other rotary lasers could result in
serious injury.
DO NOT use this LMH for any purpose other than those
outlined in this manual. This could result in serious injury.
DO NOT leave LMH "ON" unattended in any operating mode.
ALWAYS repair and servicing must be performed by a qualified repair
facility. Repairs performed by unqualified personnel could result in
serious injury.
DO NOT disassemble the LMH. There are no user serviceable parts
inside. Disassembling the laser will void all warranties on the product.
Do not modify the product in any way. Modifying the LMH may result
in hazardous laser radiation exposure.
2.1 ELECTRICAL SAFETY PROCEDURES
WARNING: Batteries can explode or leak, and can cause injury or
fire. To reduce this risk:
ALWAYS follow all instructions and warnings on the battery label and
package.
DO NOT short any battery terminals.
DO NOT charge alkaline batteries.
DO NOT mix old and new batteries. Replace all of them at the same
time with new batteries of the same brand and type.
DO NOT mix battery chemistries.
DISPOSE of batteries per local code.
DO NOT dispose of batteries in fire.
KEEP batteries out of reach of children.
REMOVE batteries if the device will not be used for several months.

LMH Series Rotary Lasers • 9
Power On
(if blinking, unit is self-leveling)
LMH
Fig. 1
2.2 CERTIFICATIONS
This laser complies with all applicable portions of title 21 of the Code
of Federal Regulations set by the Food and Drug Administrations,
Center for Devices, and Radiological Health. Complies with 21CFR
1040.10 and 10040.11 except for deviations pursuant to Laser notice
No. 50, dated July 26, 2001.
This LMH has also been tested and complies with the CE certification
requirements set forth in the EC regulations 89/336/EEC and EN
61000-6-1 (EN50082-1), EN 61000-6-3 (EN50081-1) and EN 60825-1.
2.3 ENVIRONMENT PROTECTION
Recycle raw materials & batteries instead of disposing of waste. The
unit, accessories, packaging & used batteries should be sorted for
environmentally friendly recycling in accordance with the your
countries latest regulations.
3. LMH SERIES OPERATION
3.1 Leveling
1: Remove the LaserMark®LMH from its case.
The unit is shipped with a battery current
protection insert, which must be removed
before operation. The unit can stand alone
on a level, sturdy surface or be secured to a
5⁄8" -11 surveyor’s tripod.
2: Press the Power button once, and allow
time (up to 60 seconds) for the unit to self-
level. The Power On LED (Fig. 1) and the laser
will blink during this process. Please note, the laser head may begin to
rotate before leveling is complete. The
self-leveling speed is approximately 1° per 4 seconds.
3: After self-leveling, the laser head will rotate at 600 RPM (LMH600 will
rotate at the last selected speed. Press the Power button again to turn
the unit off. (Note: for LMH-GR and LMH600 models, see section
4.3.2 (page 11)

10 • LMH Series Rotary Lasers
X—AXIS ERROR
Y—AXIS ERROR
SPINDLE ERROR
X—AXIS ERROR
Y—AXIS ERROR
SPINDLE ERROR
LMH600
LMH
3.2 Re-leveling
If the unit is bumped or moved, the unit
will automatically attempt to re-level
itself. The Power On LED and the laser
will blink during this process until the
unit is level once again. The laser head
will resume rotation.
On the job site, it may be necessary to
prevent re-leveling in order to prevent
inaccurate measurements by the opera-
tor. The LMH’s Anti-Drift System (Section
3.3) is used for this purpose.
3.2.1 Axis Drive Error
If the LMH is set up or tipped beyond its
self-leveling range of ±5°, the laser head
will initially attempt to level; however,
when the self-leveling limit is reached,
the LEDs will blink, indicating an axis
drive error (Fig. 2). Turn the LMH off,
move the unit into a more level position,
then turn the unit on again.
3.3 Anti-Drift System (ADS) (LMH, LMH-C, and LMH-GR only)
By default the ADS feature is ON. The default setting of the ADS func-
tion may be set to ON or OFF. When the unit is OFF, press and hold
the MANUAL MODE (for LMH-GR, DOWN ARROW button) and then press
the POWER button. Once the unit is on, turn the unit off for 15 Sec
and then back on. ADS will not be the default when unit is turned ON.
To make the unit return to ADS as default, repeat these instructions.
When the LMH Series laser is first turned ON, the ADS feature does not
begin recording for 1 minute. This allows the instrument to be set up
and adjusted.
If after 1 minute, the unit is disturbed and the ADS light is flashing
it is necessary to check any bench marks that have been made and
ensure the proper "HI" (Height of Instrument). After the flashing ADS
has been reset, by pressing the ADS button one time, you will have an
additional minute to set and check your measurements. To turn ADS
off press the ADS button once. This will put the unit into normal Auto
Self-Leveling mode.
Fig. 2

LMH Series Rotary Lasers • 11
Method 2
Method 1
"Y" Axis
B
A
Beam from
Pivot Point = 2.2"
3.4 Grade Mode: Single Axis Grade (LMH-GR and LMH600 Only)
The single grade function is ideal for general site grading, checking
excavations, landscaping and drainage,
and more.
Manual grade mode can be activated by
placing the automatic leveling sensor in
the OFF position. Pressing the manual
grade button will deactivate the sensor.
The selected grade can be as
much as a positive or negative
10%, and set in reference to the
Y-axis of the unit.
Operator can use one of two
methods to generate single-axis
grade (Fig. 4). Method 1: Place
the unit in the middle of the two
points (A and B) to get a higher distance. Method 2: Place the unit at
one point (A) and locate the other point (B).
On the LMH600, you may first press Variable Rotation button and set
the laser to the desired rotation speed. Press the "MANUAL GRADE"
button to activate Manual Grade Option. Press the ARROW buttons
(Fig. 5B) to adjust to your desired grade.
Y-Axis
Fig. 4
LMH-GR LMH600
For greater accuracy in grade applica-
tions, precisely level the laser level
before entering into GRADE MODE.
NOTE: The total percent grade possible is from a
perfectly level base position. If the unit is mount-
ed on a tripod head which is not perfectly level,
then the grade percentage range capable would be
reduced by the slope of the base, as this affects the
tilt range of the laser head. For maximum grade
range, ensure a level tripod head using a spirit level
before mounting your unit.
Note: For the LMH-GR and LMH600, if the unit is
bumped or moved while in Manual Grade mode,
the unit will not re-level itself.
unit will not re-level itself.

12 • LMH Series Rotary Lasers
LMH600 Self-Leveling Rotary Laser
“MORE”
“LESS”
“MORE”
“LESS”
LMH-GR and LMH600LMH600 Only
The Rotating Head
tilts on the Y-Axis.
The UP ARROW
tilts in the "MORE"
direction.
LMH600 Only: In
Laydown, the Top
Plumb Beam moves
upward.
The Rotating Head
tilts on the Y-Axis. The
DOWN ARROW
tilts in the "LESS"
direction.
LMH600 Only: In
Laydown, the Top
Plumb Beam moves
downward.
The Rotating Head
tilts on the X-Axis.
The LEFT ARROW
tilts in the "MORE"
direction.
LMH600 Only: In
Laydown,
the Top Plumb Beam
moves from left to right.
The Rotating Head
tilts on the X-Axis.
The RIGHT ARROW
tilts in the "LESS"
direction.
LMH600 Only: In
Laydown,
the Top Plumb Beam
moves from left to right.
Fig. 5B
3.4.1 Manual Mode (LMH and LMH-C).
Manual mode disengages the leveling feature; allowing the
instrument to be placed in any position (to grade). To activate the
Manual Mode, Turn off the ADS (if it is on) and then press the MANUAL
mode button. (Note: The instrument should be level and rotating
before entering manual mode to eliminate the possibility of error.)
Once the button has been pressed the ADS light will blink three times,
pause and three times again. Press the MANUAL mode button again
to return to normal operation. (Note: When returning to normal
operation the unit must be within it’s leveling range. Re-set the unit
to a level position before pressing the MANUAL MODE button to the
off position.
The unit will react to "MORE" and "LESS" input (Fig 5A and 5B). Allow
the unit ample time to react to the input provided, between grade
setups or changes.
Fig. 5A

LMH Series Rotary Lasers • 13
3.5 Grade Mode: Dual Axis Slope
(LMH600 Only)
The dual grade function allows more
specialized site preparations such as road
grading, airport jobs (grading & paving),
irrigation, trenching, landfills, slopes and
embankments, and pipelaying.
To enter a dual grade setting, press the
Manual Mode (Grade) button. Then
press the ARROW buttons to adjust grade
(Fig. 5B). Allow the unit ample time to
react to the button being pressed. Refer
to examples in Fig. 6 to predict
your results.
Fig. 6
Y
X
Y+
Y-
X+X-
Target
X+Y+
X- Y-
X= –10.00% Y= –10.00%
X+Y+
X- Y-
X= +10.00% Y= +10.00%
X+
Y+
X- Y-
X= –10.00% Y= +10.00%

14 • LMH Series Rotary Lasers
ANTI-DRIFT
SYSTEM
POWER
MANUAL
AutomaticSelf-Leveling
RotaryLaser
LMH
4. LMH SERIES APPLICATIONS
Use your LaserMark®LMH Series Automatic Self-Leveling Laser for
these and many other projects:
Outdoor General Construction Applications & Site Preparation, Grading
& Excavating, Batterboards and Foundations, Masonry Work,
Setting Concrete Forms, Machinery Installation, Marking Elevation,
Septic Work, Paving Roads, Driveways, Checking Depth of Trenches.
4.0 Benchmarking
During the work day, periodically check your initial set-up to ensure
that the laser reference has not moved.
1. Establish, at a suitable distance (furthest possible), a benchmark
(reference) on a stable surface (ie. tree, building). Periodically during
the work day, check the benchmark to ensure that your setup has
not moved.
4.1 Procedures for Ceiling
Grid Applications (LMH600
Only)
1: Attach the LMH 600 to the
optional wallmount bracket.
Be sure the control buttons
are facing outward. Tighten-
ing the locking screw will
secure the unit to
the bracket.

LMH Series Rotary Lasers • 15
2: After installing the first piece of ceiling trim, attach the wallmount
to it. Be sure the wallmount is secure to the trim.
3: Press the Power button. If the out-of-level indicator is blinking,
press the manual grade button to put the unit into automatic mode.
Allow the unit to self-level.
4: Adjust the distance of the unit from the grid, typically 1.5-inch
(38mm) below the grid. Loosen the adjustment screw and slide the
unit up/down on the wall mount. When the desired height has been
reached, tighten the adjustment screw to secure the unit.
5: Install the ceiling grid. Attach the magnetic laser target to the
ceiling trim being installed. Adjust the height of the trim until the
laser beam strikes the target.
Note: Placing the unit into Scan Mode will make installation easier and
more effecient.
To place the unit in Scan Mode, press the Scan Mode button until the
rotating laser head stops. Press and hold either clock-wise or
counter-clock-wise Head Positioning button until the laser beam
moves to the working area. Press the Scan Mode button until the
rotating beam is scanning the necessary angle.
4.2 Procedures for Laydown Applications (LMH600 Only)
1: Place the unit in the laydown position on a flat, level surface.
2: Press the Power button. If the "Out-of-Level" indicator is blinking,
LMH600 Shown

16 • LMH Series Rotary Lasers
ANTI-DRIFT
SYSTEM
POWER
MANUAL
Automatic Self-Leveling
Rotary Laser
LMH
press the Manual Grade button to put the unit in automatic mode.
3: Press the Auto Beam Positioning button; the laser beam will plumb
down over point (Reference Only).
4: Use the left and right Manual Grade buttons for fine adjustment.
4.3 Procedures for General Construction Applications
Note: A level plane of laser light is created by the rotating beam of the
LMH Series. The laser light can be used to reference elevations with
the use of a laser detector.
1: Place the unit on a flat, level surface such as a tripod. Setup the unit
in an area where it can not be obstructed and it will be set at a
convenient height.
2: Press the Power button. If the "Out-of-Level" indicator (LMH-GR
and LMH600 only) is blinking, press the Manual Grade button to put
the unit in automatic mode.
2a: LMH600 Only – Press the Variable Speed Rotation button to select
the desire rotation speed of the laser head.
3:Take elevation readings using the plane of laser light as a reference.
To take readings, attach the laser detector to the grade rod and
place the rod at a point to for an elevation reading. Follow the
Detector Operation Procedures in this manual.

LMH Series Rotary Lasers • 17
5. LMH SERIES BATTERY REPLACEMENT
When the Battery Low LED is lit (Fig. 7), or the
LMH operates erratically, replace the batteries.
1: Remove the battery tray by unscrewing the
plastic nut around the mounting thread on the
bottom of the unit (Fig. 8).
2: Remove the old batteries and replace with four
new “D” cell Alkaline batteries.
3: Replace the battery tray. Make sure the battery
contacts between the battery pack and the unit compartment
are aligned.
NOTE: Do not mix old and new batteries. Replace all batteries
at the same time with new batteries. Remove batteries before
storage of the instrument.
Rechargeable Battery Pack
When using a rechargeable battery pack
(included with Cat. #57-LMHD [120V] or
#57-LMHE [230V]), the batteries will
begin to perform optimally after five full
charges and discharges.
You may charge the battery pack within
the LMH. Ensure that the power is off,
and connect the charging plug to the
charging jack on the bottom of the
battery pack. Then plug the charger into
the appropriate 120/230V AC outlet.
Charge time is typically around 8 hours.
The LMH can be charged and used at the
same time, but only a minimal charge will
be applied to the battery pack.
Fig. 8
Fig. 7

18 • LMH Series Rotary Lasers
Fig. 9
Y+
Y-
X+X-
100'
(30m) A
B
ANTI-DRIFT
SYSTEM
POWER
MANUAL
Automatic Self-Leveling
Rotary Laser
LMH
Fig. 10
6. LMH SERIES CALIBRATION
Your LaserMark®level is a sealed unit and is
calibrated to precise accuracies at the factory.
However, a calibration check is recommended
before the initial use of your laser, and then
periodically from that point forward. Be sure
to allow time (up to 30 seconds) for the unit
to completely self-level before each check.
Please note the direction of the X and Y axes
for the unit (Fig. 9). You will need to refer to
this to complete the following steps.
6.1 Upright Position Peg Test (X axis)
1: To test the X axis, mount the LaserMark®on a
tripod or a level, sturdy surface and place
approximately 100 feet (30m) away from a
wall. Face the left side of the unit
(X- quadrant) to the wall.
2: Press the POWER button and
allow the unit to self-level. Using
the laser detector, locate and mark
the position of the laser line on
the wall (“A”, Fig. 10).
3: Loosen the LaserMark®from the
tripod and rotate the instrument
180°. Ensure that the height of the
tripod does not change, as this will affect your results. Secure and
re-level the unit.
4: Again, locate and mark the position of the laser line on the wall
(“B”). No adjustment is necessary if the vertical difference between
A and B is less than 1
/
8" (3.5mm)
Repeat the above steps to ensure a correct reading. If the distance
is greater than 1
/
8", you will need to calibrate the X axis (next refer to
6.1.2; for LMH600, refer to 6.2.1).

LMH Series Rotary Lasers • 19
6.1.2 Upright Position Calibration - X axis (LMH, LMH-C, LMH-GR)
1: Keep the unit in its current position.
Power Off the unit.
2: Power On the unit while holding the ADS
button down. You will know if Calibration
mode is activated when the Battery Low and
ADS LEDs flash alternately. Then, the ADS LED
will remain lit; this indicates that the unit is
calibrating within the X axis (Fig. 11).
3: Locate the position of the two calibration
buttons as shown in (Fig. 12), on the
LMH-GR the UP and DOWN ARROW buttons change the axis
increments. The upper button will produce a positive (+)
4: You must raise or lower the beam to center between points A and B
on the wall (Fig. 13). The unit will react to “+” and “–” input within the
X+ quadrant, with each single increment moving the beam
approximately ±1/16" at 100 feet. If B is below A, increase the increment
(+). If B is above A, decrease the increment (-).
5: The adjustments are automatically saved. You must now repeat the
peg test (6.1) to insure you have made the correct calibration. Repeat
calibration if necessary. You must allow time for the calibration change
to be saved in memory.
Fig. 11
Calibration Mode
X Axis active
LMH
ANTI-DRIFT
SYSTEM
POWER
MANUAL
Automatic Self-Leveling
Rotary Laser
LMH
Calibrated
A
B
Fig. 13 X+ facing
the wall
LMH and LMH-C
Fig. 12

20 • LMH Series Rotary Lasers
6.1.3 Upright Position Peg Test and Calibration - Y axis (LMH,
LMH-C, LMH-GR)
If you wish to test the Y axis at the same time as the X axis, simply
keep the unit on from when you tested the X axis and rotate the unit
90° so that the front of the unit is facing the wall. Press the ADS
button to turn the ADS LED off; you are now calibrating within
the Y axis (Fig. 14); follow 6.1, steps 2 through 4.
If you are testing the Y axis at a later time than the X axis, mount the
LaserMark®on a tripod and place approximately 100 feet (30m) away
from a wall, with the handle (Y– quadrant) of the unit facing the wall;
follow 6.1, steps 2 through 4.
Calibrate as in 6.1.2, adjusting “+” and “–” input as necessary within the
Y+ quadrant (Fig. 15).
If you are unable to calibrate the unit, or if the difference between points A and B is
too great to calibrate within the range of the unit, please contact CST/Berger or an
authorized service center for assistance.
Fig. 14
Calibration Mode
Y Axis active
LMH
B
A
Calibrated
ANTI-DRIFT
SYSTEM
POWER
MANUAL
Automatic Self-Leveling
Rotary Laser
LMH
Fig. 15
Y+ facing
the wall