Congratulations on your choice of this Electronic Self-Leveling Dual
Grade Horizontal Rotary Laser. We suggest you read this instruction
manual thoroughly before using the instrument. Save this instruction
manual for future use.
This is a Class IIIa laser tool and is manufactured to comply with CFR 21,
parts 1040.10 and 1040.11 as well as international safety rule IEC 285.
Electronic Self-Leveling Dual Grade Horizontal Rotary Laser
Li-ion Rechargeable Battery Pack1
Battery Adapter1
Remote Control with 2 AA Batteries1
Detector with 9V Battery and Clamp 1
Alkaline Battery Compartment (batteries not included)1
Sighting Scope1
Slope Plate1
Fine Adjusting Plate1
Instruction Manual with Warranty Card1
Hard-Shell Carrying Case1
2. Features and Functions
• Large ±8° electronic auto-level range. When beyond the leveling
range, the laser beam will flash, rotation of the beam will stop, and
an audible alarm will activate.
• Electronic beam shield to turn the laser beam off in one to three
quadrants, when multiple lasers are being used.
• Programmable dual slope operation function allows user to
perform slope at different inclinations in both x and y axis.
• Height of Instrument/Tilt alarm function ensures product accuracy.
• Dust and rain resistant.
• Operates with remote control.
• LCD display with backlight illumination.
• Adjustable rotation speeds of 600 and 1100 rpms.
Please read and understand all of the following instructions, prior
to using this tool. Failure to do so, may void the warranty.
DANGER!
Class IIIa Laser Product
Max. Power Output: ≤ 5mW
Wavelength: 625-645nm
THIS TOOL EMITS LASER RADIATION.
DO NOT STARE INTO BEAM.
AVOID DIRECT EYE EXPOSURE.
ATTENTIONIMPORTANT
• Read all instructions prior to operating this laser tool. Do not remove any labels from tool.
• Do not stare directly at the laser beam.
• Do not project the laser beam directly into the eyes of others.
• Do not set up laser tool at eye level or operate the tool near a reflective surface as
the laser beam could be projected into your eyes or into the eyes of others.
• Do not place the laser tool in a manner that may cause someone to unintentionally
look into the laser beam. Serious eye injury may result.
• Do not operate the tool in explosive environments, i.e. in the presence of gases or
flammable liquids.
• Keep the laser tool out of the reach of children and other untrained persons.
• Do not attempt to view the laser beam through optical tools such as telescopes as
serious eye injury may result.
• Always turn the laser tool off when not in use or left unattended for a period of time.
• Remove the batteries when storing the tool for an extended time (more than 3 months)
to avoid damage to the tool should the batteries deteriorate.
• Do not attempt to repair or disassemble the laser tool. If unqualified persons attempt
to repair this tool, warranty will be void.
• Use only original Johnson
authorized dealer. Use of non-Johnson®parts and accessories will void warranty.
IMPORTANT: It is the responsibility of the user to verify the
calibration of the instrument before each use.
Alkaline Battery Installation:
Put 3 “D” alkaline batteries (not included)
into the battery pack according to the polarity
direction, then insert the battery pack into the
laser. (Note: Batteries facing up.)
Rechargeable Battery Pack Installation:
Install the rechargeable battery pack into
the laser.
Charging the Rechargeable Battery Pack:
Charge the rechargeable battery pack by inserting the charger into
the charging port. The LED on the charger is red during the charging
process; the LED on the charger will turn green when the battery is
fully charged.
(1) Charge the rechargeable battery when the battery power is low
(battery symbol on the LCD is flashing). This will extend the
battery life.
(2) If the laser is not going to be used for a long period of time,
charge the rechargeable battery every 2-3 months.
(3) The instrument can operate while the batteries are recharging.
Use of the Slope Plate and Fine Adjusting Plate:
If the laser is operating with less than +12% grade in
the Y-axis, the slope plate is not required.
If the laser is operating between +12% and +25% in
the Y-axis, the slope plate is required.
Slope Plate
For exact positioning of the X or Y-axis, screw the Fine Adjusting Plate
on the tripod and then screw the laser to the Fine Adjusting Plate.
Use the sighting scope to rotate the laser to the exact position
required. Use the Fine Adjustment Knobs for fine movement. Use the
Lock Knob when positioned in the correct position.
The laser is in self-leveling status when powered on.
Default rotate speed is 600 RPM
Default beam shield is off in all four quadrants;
Default grade for X-axis and Y-axis is 0.
The remote channel will display CH1.
If there is a matched remote control with the power on, the
remote status will display if there is not a matched remote, it
will display .
When powered on, the laser will automatically check the battery
capacity.
When powering on the laser it will enter into the self-leveling mode.
The TILT display will blink for thirty seconds after the lasers starts
to rotate. During these thirty seconds, if the laser is moved it will
stop rotating and re-level itself. After thirty seconds, the laser
will enter into the TILT mode and the LCD will show a solid
TILT display. (See TILT button)
Grade axis and Grade Value Button:
With the laser on, press the Grade Axis and Position button and hold
in for two seconds. The laser will beep once and the laser will enter
the X-axis grade setting mode. The X-axis symbol “X” and axis
direction symbol (+) will flash. A short press of the button will move
the position to the next symbol. Pressing the grade value buttons
will change the values. When the X-axis setting is