Futura LT-850 User manual

Inteq Distributors
100 N. Rockwell Ave., Bldg. 96
Oklahoma City, Ok. U.S.A. 73127
Toll Free 877-399-9900
Phone: [phone]
Fax: [phone]
www.inteqdistributors.com
Inteq Distributors (Canada)
240 Thames Rd. West
Exeter, ON. Canada N0M 1S3
Phone: [phone]
Fax: [phone]
Toll Free: 877-327-5788
www.inteqdistributors.com
Inteq Distributors
100 N. Rockwell Ave., Bldg. 96
Oklahoma City, Ok. U.S.A. 73127
Toll Free 877-399-9900
Phone: [phone]
Fax: [phone]
www.inteqdistributors.com
LT-850
Instruction Manual
Automatic Electronic Self-Leveling
Slope Laser
LT-850
Instruction Manual
Automatic Electronic Self-Leveling
Slope Laser
Inteq Distributors (Canada)
240 Thames Rd. West
Exeter, ON. Canada N0M 1S3
Phone: [phone]
Fax: [phone]
Toll Free: 877-327-5788
www.inteqdistributors.com

Table of Contents
Warranty ................................................. 3
Features ................................................. 4
Controls .................................................. 5
Applications ............................................ 7
Care of Instrument ................................. 9
Specications ......................................... 9
Operations ............................................. 10
Replacing Batteries ............................... 12
Calibration ............................................. 13
2. LT-850
Table of Contents
Warranty ................................................. 3
Features ................................................. 4
Controls .................................................. 5
Applications ............................................ 7
Care of Instrument ................................. 9
Specications ......................................... 9
Operations ............................................. 10
Replacing Batteries ............................... 12
Calibration ............................................. 13
2. LT-850
Optional Recharge Kit
Your LT-850 Self-Leveling Grade Laser has an optional recharge
kit that can purchased with your laser. The kit includes four
rechargeable batteries, AC adapter, and the software required
already pre-loaded into your LT-850.
Recharging your LT-850
Ensure that the rechargeable Ni-CD batteries included with your
kit are installed in your laser.
Plug the adapter into the 2.5mm jack located on the front of the
LT-850 laser, and the other end to your power source. You can
re-charge the LT-850 when it is turned off, or you may plug it in to
re-charge while the laser is still in use. Please allow 4 to 6 hours
for your laser to fully re-charge.
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
Notes
Optional Recharge Kit
Your LT-850 Self-Leveling Grade Laser has an optional recharge
kit that can purchased with your laser. The kit includes four
rechargeable batteries, AC adapter, and the software required
already pre-loaded into your LT-850.
Recharging your LT-850
Ensure that the rechargeable Ni-CD batteries included with your
kit are installed in your laser.
Plug the adapter into the 2.5mm jack located on the front of the
LT-850 laser, and the other end to your power source. You can
re-charge the LT-850 when it is turned off, or you may plug it in to
re-charge while the laser is still in use. Please allow 4 to 6 hours
for your laser to fully re-charge.
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
Notes

Laser Safety
The use of controls, adjustments, or the performance of procedures other than
those specied herein may result in hazardous radiation exposure.
Do Not stare into the laser beams.
Do Not disassemble the instrument or attempt
to perform any internal servicing. Repair and
servicing of this laser are to be performed only
by a Futtura authorized service centre.
This laser complies with all applicable portions
of title 21 of the Code of Federal Regulations se by the Department of Health,
Education, and Welfare, The Food and Drug Administration, the Centre for
Devices, and the Bureau of Radiological Health.
Warranty
LT-850 . 3
The Futtura LT-850 Laser is warranted to the original purchaser to be
free from defects in workmanship and material. Futtura will repair or
replace any defective part which may malfunction under normal and
proper use within a period of TWO YEARS from the date of purchase
without charge of parts and labor, once delivered and shipped prepaid
to Futtura together with proof of date and place of purchase. This
warranty is not subject to misuse, abuse, assignment, or transfer. The
exclusive remedy under any and all warrants and guarantees, ex-
pressed or implied, is limited to repair and/or replacement as provided
herein, and Futtura shall not be liable for damages from loss or delay
of equipment uses, consequential, or incidental damage.
Laser Safety
The use of controls, adjustments, or the performance of procedures other than
those specied herein may result in hazardous radiation exposure.
Do Not stare into the laser beams.
Do Not disassemble the instrument or attempt
to perform any internal servicing. Repair and
servicing of this laser are to be performed only
by a Futtura authorized service centre.
This laser complies with all applicable portions
of title 21 of the Code of Federal Regulations se by the Department of Health,
Education, and Welfare, The Food and Drug Administration, the Centre for
Devices, and the Bureau of Radiological Health.
Warranty
LT-850 . 3
The Futtura LT-850 Laser is warranted to the original purchaser to be
free from defects in workmanship and material. Futtura will repair or
replace any defective part which may malfunction under normal and
proper use within a period of Two Years from the date of purchase
without charge of parts and labor, once delivered and shipped prepaid
to Futtura together with proof of date and place of purchase. This
warranty is not subject to misuse, abuse, assignment, or transfer. The
exclusive remedy under any and all warrants and guarantees, ex-
pressed or implied, is limited to repair and/or replacement as provided
herein, and Futtura shall not be liable for damages from loss or delay
of equipment uses, consequential, or incidental damage.
14 . LT-850
Calibration LT-850
Your LT-850 Self-Leveling Grade Laser is a sealed unit and is
calibrated to precise accuracies at the factory. However, if a cali-
bration error is present, we recommend you have your unit
calibrated at a certied Futtura Service Center.
Field calibration is possible if great care taken in following these
instructions.
Upright Position Calibration – X and Y axis
1) To Calibrate the X axis, mount the laser on a tripod or a level,
sturdy surface and place approximately 100 feet (30m) away from
a wall. Face the X axis of the unit to the wall.
2) Establish the new calibration point (C), following the instruction
in Calibration Test.
3) Turn the unit off, then turn the unit back on holding the Mode
Button.
4) The display will now read Co.1 or Co.2 and the laser beam
will turn on and the unit will rotate. Press the mode button until
the display reads Co.1. Now the display will alternate between
Co.1 and a calibration value, which can be a positive or negative
number.
5) Move the detector to the new calibration point (C). With the
Plus and Minus Buttons, increase or decrease the calibration
value until the laser beam moves to the new calibration point.
6) Press the mode button until the display shows Co.2. Repeat 4
and 5 for the Y axis.
7) Pressing the Power button once will store the new calibration
values and then put the unit into the Flat Mode.
8) Follow the Calibration Test instructions to verify the unit is now
calibrated.
14 . LT-850
Calibration LT-850
Your LT-850 Self-Leveling Grade Laser is a sealed unit and is
calibrated to precise accuracies at the factory. However, if a cali-
bration error is present, we recommend you have your unit
calibrated at a certied Futtura Service Center.
Field calibration is possible if great care taken in following these
instructions.
Upright Position Calibration – X and Y axis
1) To Calibrate the X axis, mount the laser on a tripod or a level,
sturdy surface and place approximately 100 feet (30m) away from
a wall. Face the X axis of the unit to the wall.
2) Establish the new calibration point (C), following the instruction
in Calibration Test.
3) Turn the unit off, then turn the unit back on holding the Mode
Button.
4) The display will now read Co.1 or Co.2 and the laser beam will
turn on and the unit will rotate. Press the mode button until the
display reads Co.1. Now the display will alternate between Co.1
and a calibration value, which can be a positive or negative num-
ber. When the laser has leveled itself, it will read Lo.1
5) Move the detector to the new calibration point (C). With the
Plus and Minus Buttons, increase or decrease the calibration
value until the laser beam moves to the new calibration point.
6) Press the mode button until the display shows Co.2. Wait for it
to level and read Lo.2, then repeat 4 and 5 for the Y axis.
7) Pressing the Power button once will store the new calibration
values and then put the unit into the Flat Mode.
8) Follow the Calibration Test instructions to verify the unit is now
calibrated.

LT-850 . 13
Your LT-850 Self-Leveling Grade Laser is a sealed unit and is calibrat-
ed 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 60 seconds) for
the unit to completely self-level before each check.
Upright Position Calibration Test – X and Y axis
1) To test the X axis, mount the laser on a tripod or a level, sturdy sur-
face and place approximately 100 feet (30m) away from a wall. Face
the X axis of the unit to the wall.
2) Press the power button and allow the unit to self-level in the Level
Mode. Mark the position of the laser beam on the wall with the detector
(“A”).
3) Loosen the instrument 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 let the unit re-level.
4) Again, locate and mark the position of the laser on the wall (“B”).
No adjustment is necessary if the vertical difference between A and B
is less than 1/8” (3.5mm).
Calibration Test
LT-850 . 13
Features: LT-710
Features: LT-710
4 . LT-850
4 . LT-850
Calibration Test
Features: LT-850
Features: LT-850
-Electronic self leveling Level mode
-Electronic self leveling Grade Mode (+15 to
-10% Slope)
-Manual mode
-Variable rotor speed control
-Battery life indicator
-Back lit LCD display
-Optional Rechargeable battery kit (LT-850RC)
Self-Leveling (+/- 5 )
Rotating Laser Head
Battery Indicator
Plus Button
Minus Button
LCD Display
Power Button
Mode Button
5/8-in x 11
Tripod Mounting
o
Self-Leveling (+/- 5 )
Rotating Laser Head
Battery Indicator
Plus Button
Minus Button
LCD Display
Power Button
Mode Button
5/8-in x 11
Tripod Mounting
o
5) The (“C”) is the new
calibration point for this
axis, half way between
the (A) and (B) points
Repeat the above steps
for the Y axis.
Your LT-850 Self-Leveling Grade Laser is a sealed unit and is calibrat-
ed 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 60 seconds) for
the unit to completely self-level before each check.
Upright Position Calibration Test – X and Y axis
1) To test the X axis, mount the laser on a tripod or a level, sturdy sur-
face and place approximately 100 feet (30m) away from a wall. Face
the X axis of the unit to the wall.
2) Press the power button and allow the unit to self-level in the Level
Mode. Mark the position of the laser beam on the wall with the detector
(“A”).
3) Loosen the instrument 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 let the unit re-level.
4) Again, locate and mark the position of the laser on the wall (“B”).
No adjustment is necessary if the vertical difference between A and B
is less than 1/8” (3.5mm).
5) The (“C”) is the new
calibration point for this
axis, half way between
the (A) and (B) points
Repeat the above steps
for the Y axis.
-Electronic self leveling Level mode
-Electronic self leveling Grade Mode (+15 to
-10% Slope)
-Manual mode
-Variable rotor speed control
-Battery life indicator
-Back lit LCD display
-Optional Rechargeable battery kit (LT-850RC)

Manual Mode
Manual mode disengages the leveling feature, allowing the instru-
ment to be placed in any position. (Note: In the Manual mode the
laser light is on, the rotor will spin and the self leveling is turned off.)
Select Manual mode with the Mode Button.
Height of Instrument Mode
Height of Instrument Mode is activated while unit is in Grade Mode
or Level Mode. H.I. will protect against accidental bumps or settling
of the unit that could cause errors.
To activate H.I. unit must be in Grade Mode or Level Mode while the
Rotor Speed is set to 600 (SF2). HI will automatically engage after
the tool has self leveled for 5 minutes. To reset HI, press any button.
Battery Replacement
1. Turn the battery cover knob to OPEN and remove battery cover
2. Pull out the slide board and remove the batteries
3. Insert new batteries as shown by the illustration on the battery cover
4. Replace the battery cover to its original position and turn the battery
cover knob to LOCK
Manual Mode
Manual mode disengages the leveling feature, allowing the instru-
ment to be placed in any position. (Note: In the Manual mode the
laser light is on, the rotor will spin and the self leveling is turned off.)
Select Manual mode with the Mode Button.
Height of Instrument Mode
Height of Instrument Mode is activated while unit is in Grade Mode
or Level Mode. H.I. will protect against accidental bumps or settling
of the unit that could cause errors.
To activate H.I. unit must be in Grade Mode or Level Mode while the
Rotor Speed is set to 600 (SF2). HI will automatically engage after
the tool has self leveled for 5 minutes. To reset HI, press any button.
Battery Replacement
Controls: LT-850
LT-850 . 5
Power Button – turns the tool On, press and hold for one second to
turn unit Off.
LCD Window Numeric – The numeric LCD window displays infor-
mation about the operation mode, grade, rotor speed, system errors
and leveling condition.
Plus Button – lets the user increase the grade setting in the grade
mode and increase the rotor speed in the level and manual mode. In
the vertical mode this button controls the line direction to the right.
Minus Button – lets the user decrease the grade setting in the grade
mode and decrease the rotor speed in the level and manual mode. In
the vertical mode this button controls the line direction to the left.
Mode Button – Toggles between the Level Mode, Grade Mode and
Manual Mode.
- LCD - Four modes of operation are displayed here.
- Level Mode - The unit is in the level mode when the dis-
play shows three level bars.
- Grade Mode - The unit is in the grade mode when the
display shows a grade value.
Controls: LT-850
LT-850 . 5
Power Button – turns the tool On, press and hold for one second to
turn unit Off.
LCD Window Numeric – The numeric LCD window displays infor-
mation about the operation mode, grade, rotor speed, system errors
and leveling condition.
Plus Button – lets the user increase the grade setting in the grade
mode and increase the rotor speed in the level and manual mode. In
the vertical mode this button controls the line direction to the right.
Minus Button – lets the user decrease the grade setting in the grade
mode and decrease the rotor speed in the level and manual mode. In
the vertical mode this button controls the line direction to the left.
Mode Button – Toggles between the Level Mode, Grade Mode and
Manual Mode.
- LCD - Four modes of operation are displayed here.
- Level Mode - The unit is in the level mode when the dis-
play shows three level bars.
- Grade Mode - The unit is in the grade mode when the
display shows a grade value.
Battery Replacement
Battery Replacement
12 . LT-850
1. Turn the battery cover knob to OPEN and remove battery cover
2. Pull out the slide board and remove the batteries
3. Insert new batteries as shown by the illustration on the battery cover
4. Replace the battery cover to its original position and turn the battery
cover knob to LOCK
LT-850 LT-850
LT-850 LT-850
12 . LT-850

- Manual Mode - The unit is in manual mode when the
display shows three wavy bars.
- Vertical Mode- The unit is in the vertical mode when the
display shows seven level bars. (Model with vertical option only)
-Rotor Speed- When the unit is in the level or manual mode
the rotor speed will be changed and displayed when the + or –
buttons are pressed. (Model with speed option only)
-Leveling Condition- the numeric display area will ash
when the leveling servo is outside of the leveling dead band and
stays on solid when the unit is self-leveled (in grade and level mode
only). When leveling limits have been reached, unit will beep and
two segments of the right hand digit will display the corner where the
limit has occurred.
-Leveling Range- When the base of unit is level the unit will
level to +8% to –8% grade. For grades greater than 8% the base of
the unit will have to be tipped in the grade direction to allow unit to
level to larger grades.
-Height of Instrument – When the height of instrument has
changed the unit will beep and the display will show “ HI “. Press
the power button once to reset the H.I.
6 . LT-850
Controls: LT-710
- Manual Mode - The unit is in manual mode when the
display shows three wavy bars.
- Vertical Mode- The unit is in the vertical mode when the
display shows seven level bars. (Model with vertical option only)
-Rotor Speed- When the unit is in the level or manual mode
the rotor speed will be changed and displayed when the + or –
buttons are pressed. (Model with speed option only)
-Leveling Condition- the numeric display area will ash
when the leveling servo is outside of the leveling dead band and
stays on solid when the unit is self-leveled (in grade and level mode
only). When leveling limits have been reached, unit will beep and
two segments of the right hand digit will display the corner where the
limit has occurred.
-Leveling Range- When the base of unit is level the unit will
level to +8% to –8% grade. For grades greater than 8% the base of
the unit will have to be tipped in the grade direction to allow unit to
level to larger grades.
-Height of Instrument – When the height of instrument has
changed the unit will beep and the display will show “ HI “. Press
the power button once to reset the H.I.
Controls: LT-710
6 . LT-850
Controls: LT-850
Controls: LT-850
LT-850 . 11
LT-850 . 11

LT-850 . 7
Applications
Use your LT-850 Series Self-Leveling Grade Laser for these and many
other projects:
Outdoor General Construction Applications & Site Preparation, Grad-
ing & Excavating, Batterboards and Foundations, Masonry Work, Set-
ting Concrete Forms, Machinery Installation, Marking Elevation, Septic
Work, Paving Roads, Driveways, Parking Lots, Drainage Trenches,
Drop Ceiling Installation, Floors, Cabinets & Shelves, Carpentry,
Pools, Decks & Patios, Flagpoles, Aligning 90˚ Joints & Edges, Land-
scaping, Tile Work, Septic Work, Plumbing, Batterboards, Fencing,
Walls & Partitions, Remodeling, Siding Installation, Doors & Windows.
Benchmarking
During the work day, periodically check your initial set-up to ensure
that the laser reference has not moved.
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.
LT-850 . 7
Applications
Use your LT-850 Series Self-Leveling Grade Laser for these and many
other projects:
Outdoor General Construction Applications & Site Preparation, Grad-
ing & Excavating, Batterboards and Foundations, Masonry Work, Set-
ting Concrete Forms, Machinery Installation, Marking Elevation, Septic
Work, Paving Roads, Driveways, Parking Lots, Drainage Trenches,
Drop Ceiling Installation, Floors, Cabinets & Shelves, Carpentry,
Pools, Decks & Patios, Flagpoles, Aligning 90˚ Joints & Edges, Land-
scaping, Tile Work, Septic Work, Plumbing, Batterboards, Fencing,
Walls & Partitions, Remodeling, Siding Installation, Doors & Windows.
Benchmarking
During the work day, periodically check your initial set-up to ensure
that the laser reference has not moved.
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.
Remove the laser tool from its carrying case. Press the power button
to turn the tool on.
Leveling Mode
Selected Level mode with the Mode Button.
The unit can stand alone on a level, sturdy surface or preferably
secured to a 5/8” X 11 surveyor’s tripod.
Press the power button once, and allow time (up to 60 seconds) for
the unit to self-level.
Note: The laser head may begin to rotate before leveling is complete.
The self-leveling speed is approximately 1˚ per 4 seconds.
After self-leveling, the unit will begin operating in Rotation Mode.
Grade Mode
The single grade function is ideal
for general site grading, checking
excavations, landscaping, septic,
drainage, and more.
Select the Grade mode with the
Mode Button. Using the Plus and
Minus buttons enter the desired
grade. The unit will self level to
entered grade and rotor
will begin to spin. With
the Axis alignment guide
and up grade lable on
the top of the unit, point
the grade Axis ( Y axis)
in the desired grade
direction.
Remove the laser tool from its carrying case. Press the power button
to turn the tool on.
Leveling Mode
Selected Level mode with the Mode Button.
The unit can stand alone on a level, sturdy surface or preferably
secured to a 5/8” X 11 surveyor’s tripod.
Press the power button once, and allow time (up to 60 seconds) for
the unit to self-level.
Note: The laser head may begin to rotate before leveling is complete.
The self-leveling speed is approximately 1˚ per 4 seconds.
After self-leveling, the unit will begin operating in Rotation Mode.
Grade Mode
The single grade function is ideal
for general site grading, checking
excavations, landscaping, septic,
drainage, and more.
Select the Grade mode with the
Mode Button. Using the Plus and
Minus buttons enter the
desired grade. The unit
will self level to entered
grade and rotor will begin
to spin. With the Axis
alignment guide and up
grade lable on the top of
the unit, point the grade
Axis ( Y axis) in the de-
sired grade direction.
10 . LT-850
Operation LT-850
10 . LT-850
Operation LT-850

Operating Instructions for General Construction Applications
Note: A level plane of laser light is created by the rotating beam of
the laser. The laser light can be used to reference elevations with
the use of a laser detector.
1) Place the unit on a at, level surface such as a tripod. Setup
the unit in an area where it cannot be obstructed and is set at a
convenient height.
2) Press the I/O button. Allow the unit to self-level.
Setup a “Benchmark” (page 7).
3) Take elevation readings using the plane of laser light as a refer-
ence.
8 . LT-850
Operating Instructions for General Construction Applications
Note: A level plane of laser light is created by the rotating beam of
the laser. The laser light can be used to reference elevations with
the use of a laser detector.
1) Place the unit on a at, level surface such as a tripod. Setup
the unit in an area where it cannot be obstructed and is set at a
convenient height.
2) Press the I/O button. Allow the unit to self-level.
Setup a “Benchmark” (page 7).
3)Take elevation readings using the plane of laser light as a refer-
ence.
4) Follow the Detector Operation Procedures in this manual.
8 . LT-850
LT-850 . 9
Level Accuracy ...................... +/- 1/16” @ 100 ft. (1.6mm @ 30m)
Operating Range (Diameter) .................... up to 2,000 ft.* (700m)
Self-Leveling Range ............................................... approx. +/- 8˚
Compensation Type
Level Mode ................................................ Electronic Self Leveling
Grade Mode .............................................. Electronic Self Leveling
Grade Increments .......................... 0.01% from -2.5 to 2.5% Slope
Grade Accuracy ........................................... 0.01 to 2.5% = 0.01%
2.5 to 15% = 0.08%
Laser Type ........... 635nm Visible, (Class 3a FDA) (Class 3R IEC)
Battery Life 20˚C (68˚F) C-cell alkaline .................. approx. 60hr.
Operating Temp ............................... -4˚F to 122˚F (-20˚C to 50˚C)
Tripod Mount ..................................................................... 5/8 x 11
* determined by receiver used
Specications
Always clean the instrument after use. Use a soft, dry cloth to
remove any dirt or moisture from the instrument. Do not use
benzene, paint thinner, or other solvents to clean the instrument.
Remove batteries before storage of the instrument.
Alkaline batteries are recommended for use with the instrument.
Commercially-available manganese, Ni-CD and Ni-MH batteries
may be used but the operating time will differ to that for alkaline
batteries. Always replace all 4 batteries at the same time. Do not
use a combination of old and new batteries.
Care of Instrument
LT-850 . 9
Specications
Care of Instrument
Level Accuracy ...................... +/- 1/16” @ 100 ft. (1.6mm @ 30m)
Operating Range (Diameter) .................... up to 2,000 ft.* (700m)
Self-Leveling Range ............................................... approx. +/- 8˚
Compensation Type
Level Mode ................................................ Electronic Self Leveling
Grade Mode .............................................. Electronic Self Leveling
Grade Increments .......................... 0.01% from -2.5 to 2.5% Slope
Grade Accuracy ........................................... 0.01 to 2.5% = 0.01%
2.5 to 15% = 0.08%
Laser Type ........... 635nm Visible, (Class 3a FDA) (Class 3R IEC)
Battery Life 20˚C (68˚F) C-cell alkaline .................. approx. 60hr.
Operating Temp ............................... -4˚F to 122˚F (-20˚C to 50˚C)
Tripod Mount ..................................................................... 5/8 x 11
* determined by receiver used
Always clean the instrument after use. Use a soft, dry cloth to
remove any dirt or moisture from the instrument. Do not use
benzene, paint thinner, or other solvents to clean the instrument.
Remove batteries before storage of the instrument.
Alkaline batteries are recommended for use with the instrument.
Commercially-available manganese, Ni-CD and Ni-MH batteries
may be used but the operating time will differ to that for alkaline
batteries. Always replace all 4 batteries at the same time. Do not
use a combination of old and new batteries.