LAR 350 1. Intended Use The STABILA LAR-350 is an easy-to-use rotation laser for horizontal and vertical levelling, including obtaining plumb lines. The LAR-350 has a sealed enclosure (IP 65) for use on construction sites. It is self-levelling within a range of ± 5°.
Do not look into the direct or reflected beam. The STABILA laser goggles available for our laser devices do not constitute safety eyewear; their function is to improve the visibility of the laser beam.
LAR 350 4.2 Remote Control Unit Elements Remote control unit: SHIFT 18. LED indicator for SHIFT button 19. LED indicator: transmitting 20. TILT 21. Laser x-axis 22. Laser y-axis 23. Position 24. Scan 25. Rotation speed 26. Section 27. Standby...
LAR 350 5. Battery Insertion/Replacement Open battery compartment cover (10, 28) in the direction of the arrow and insert new batteries as indicated by the symbol in the battery compartment. Suitable rechargeable batteries can also be used. LED indicator: Yellow LED (6): Battery capacity low - insert new battery 2x 1.5V...
LAR 350 6. Using the Laser Unit Place the laser unit in the appropriate working position (vertical or horizontal). To start the laser, press button (3). Holding this button for a longer period will switch the laser off again. Activating the self-levelling function causes the unit to level itself automatically.
LAR 350 7. Tilt function The tilt function warns if any interference to the laser has occurred that may cause misalignment. This ensures that such interference does not go unnoticed. When the tilt function is active, the white LED (5) is lit steadily.
Place the laser unit in the appropriate working position (vertical or horizontal). To switch on, press button (3) once. Now the LAR 350 is in ‘Automatic mode with tilt function’. The automatic levelling process begins. Once levelling is completed, the beam stays on constantly and begins to rotate.
LAR 350 8.2 Automatic Operation with Relevelling In some situations (e.g. when working on a shaking or vibrating surface), the tilt function can be a hindrance. With automatic relevelling, on the other hand, the unit is readjusted each time it is knocked out of alignment.
LAR 350 9.1 Manual Operation with Tilt Function In manual mode the laser plane is aligned by hand. Neither self-levelling nor relevelling are active. The unit does not level itself. If the tilt function is active, interferences (shocks, vibrations) that could misalign the unit from its exact original setting do not go unnoticed.
LAR 350 9.2 Manual Operation without Tilt Function In manual operation without tilt function, neither automatic mode, the tilt function nor relevelling are active. In this mode the unit is aligned entirely by hand. The unit does not level itself.
LAR 350 10. Functions Rotation function -- > p. 15 The laser beam rotates through 360° around its axis. horizontally vertically --> p. 18 Inclination function --> p. 17 --> p. 19 Appropriate inclination of the levelling plane Can only be set by remote control Line function in scan mode: -->...
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LAR 350 Functions Point function --> p. 15 The laser beam is visible as a point on the target surface Canonly be set by remote control Plumb-line function Transfers a determined point from the floor to the ceiling. To transfer a plumb line from a floor...
LAR 350 11. Operation with Remote Control SHIFT The LAR 350 features an innovative remote control unit. It 18. LED indicator for SHIFT button allows a wide range of functions and settings to be intelli- 19. LED indicator: transmitting gently controlled. Settings are made by pressing the rele- vant button while simultaneously rotating the remote con- 20.
LAR 350 12. Settings and Applications 13. Rotation Function/Rotation Speed The rotation function is set when the unit is switched on and can also be set at any time with button (25). In rotation mode the laser beam rotates. By holding down button (25) and...
LAR 350 14. Line Function in Scan Mode In scan mode the beam does not rotate. Instead, it moves to and fro rapidly between two points. The eye perceives this as a laser line. Button (24) switches the scan function on/off. When it is switched on, the scan line is always located opposite button (3) of the laser unit.
LAR 350 15. Inclining the Laser Axes (21) (17) Briefly pressing button (21) = laser x-axis or (22) = laser y-axis causes the rapidly flashing LEDs (blue or green) to indicate the corresponding laser axis. The laser axes can be adjusted independently through an inclination range of up to ±5°.
‘VERTICAL MODE THIS SIDE UP’ appears on the top. The op- erator display is then also at the top. The retaining bracket (12) can be used to mount the LAR 350 on a tripod. The unit switches into vertical mode automatically. All modes and functions are available.
LAR 350 16.3 Rotating and Inclining the Laser Axes (21) Button (17) switches the laser axis rotation and inclination function on and off. Use buttons (21) and (22) to set the two laser axes. The corresponding LEDs flash during adjustment.
LAR 350 17. Positioning the Laser Beam In certain applications it can be helpful to align the laser beam using only a single laser point. To do this, reduce the rotation speed to zero = point laser (button 25). --> Rotation Speed...
LAR 350 18. Displaying the Alignment of the (21) Laser Axes The blue and green LEDs indicate the respective axes if button (21) = laser x-axis or (22) = laser y-axis is briefly pressed. (21) --> ‘Inclining the Laser Axes’...
LAR 350 20. Section Mode (23) 180° Here the rotating laser beam is limited to a particular sector. This prevents malfunctions occurring outside the actual working area through interference with other devices. Within the specified sector, all function modes of the rotation laser are available.
LAR 350 21. LED Indicators Operation with tilt function --> ‘Tilt Function’ Unit is outside self-levelling range 30 seconds fine adjustment --> Using the Laser Unit, --> ‘Using the Laser Unit’ Tilt Function Operation without tilt function Tilt function initiated -->...
LAR 350 22.1 Checking Accuracy The STABILA LAR 350 rotation laser has been designed for construction sites and has left our factory in a correctly adjusted condition. As with all precision instruments, you should regularly check the calibration accuracy of the unit.
Be sure to adhere as closely as possible to the orientation of the unit as shown. Place the LAR 350 on a horizontal surface or on a tripod at a distance of 5 or 10 m from a wall, with the operator panel towards the wall.
LAR 350 22.3 Adjustment - Horizontal If the tolerance level was exceeded in the horizontal check, the laser can be readjusted as follows. In each case the critical element is the distance that results from the measurement points taken from opposing positions, i.e. points 1+3 or 2+4.
B. Point 2. 6. Now reposition the laser unit so that it is directly in front of wall B. Align the LAR 350 with wall B using the plumb-line laser. 7. Once automatic levelling is complete, rotate the plumb-line laser point and move it vertically until it exactly covers point 2.
LAR 350 22.5 Adjustment - Vertical If the tolerance level was exceeded in the vertical check, the laser can be readjusted as follows. When performing readjustments, ensure that the batteries are fully charged. > 5 sec Position the laser with the plumb axis towards the wall.
23 Care and maintenance 26 Declaration of warranty by STABILA Laser This STABILA laser measuring unit is a precision optical instrument and should be In addition to the statutory rights of buyers, which are not limited by this handled with care.
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