STABILA Laser LAX 300 G Cross Line Laser Level Instruction Manual

STABILA Laser LAX 300 G Cross Line Laser Level Instruction Manual

Intended use

The STABILA LAX 300 G is an easy to use crossed line and plumb line laser. This unit is self-levelling through a range of ± 4.5° and allows you to work accurately on the horizontal and vertical green laser lines. Read the User Manual along with the illustrated portion. Follow the general instructions on the handling, care and maintenance of the instrument. Observe the safety instructions on laser beams. If you still have questions after reading through the operating instructions, you can obtain advice by telephone: 0049 / 63 46 / 3 09 – 0 1.800.869.7460 U.S. and Canada

Main components

• (1a) On/off button
• (1b) ON/ OFF switch (for protecting during transport)
• (2) LEDs for displaying
• (2a) Operating mode ON or READY
• (2b) Battery voltage
• (3) Exit aperture for the horizontal and vertical laser lines
• (4) Plumb line laser outlet
• (5) Foot – extendable
• (6) Release lever
• (7) Battery compartment cover
• (8) Protective cover
• (9) 1/4″ threaded connector for tripod
• (10) Magnets
• (11) Wall bracket

Before initial start-up :

The warning notice in your language must be clearly affixed on the laser instrument at the position indicated. The appropriate stickers are enclosed.
LA SE R RA DI AT ION DO NOT ST AR E IN TO BE AM

This sticker with the warning notice written  in the usual language must be affixed here in place of the English text ! Batteries must be inserted -> changing batteries

Main applications:

Operating modes

B1 The LAX 300 G can be used in 2 operating modes:

1. as a self-levelling line laser 2. as a laser instrument for marking

B2 + plumb line laser applications without the levelling function

Operating mode with self-levelling
A laser line can be selected in this mode.
C1

Commissioning
C2 The instrument is switched on with the on/off switch (1b). Horizontal and
C3 vertical laser lines and the plumb line points appear after switching on.
C4 The laser will automatically level itself.

Setting the type of line:
The vertical and horizontal laser lines with the plumb line point and the cross laser line can be set after each other by pressing the selector switch (1a). A4 The laser will flash if the inclination is too great ! laser beam flashing-> The unit is inclined too much + is outside the self-levelling range

• the laser cannot level itself automatically

A4 Operating mode without levelling function:
The on/off switch
(1b) is switched off. In this mode the LAX 300 G is only switched on or off with the selector switch (1a).
D1 Plumb line function mode
D2 The foot can be extended in order to improve the visibility of the lower
D3 plumb line point. The LAX 300 G is positioned and switched on ( switch 1b ). The laser down beam is aligned as required to the object or a mark.
E1 Mark the position of the up laser beam on the ceiling. The laser lines
E2 E3 are always switched on at the same time as the plumb line laser points. Always ensure that the centre of the laser line is marked !

Checking the calibration

LAX 300 G crossed line and plumb line laser is designed for use on the construction sites and left our factory perfectly adjusted. As with any precision instrument, however, its calibration must be regularly checked. The unit should be checked before starting any new tasks, particularly when the unit has been exposed to strong vibrations.

Horizontal checking

1. Horizontal checking – Line level

F1 Two parallel wall surfaces at least 5m /16`5″ apart are required for the horizontal check.

1. Place the LAX 300 G on a smooth surface or on a tripod at a distance of 50 mm F2 to 75 mm in front of wall A and with the front side pointing towards the wall
2. Switch the unit on (1b).
3. Mark the position of the visible laser line cross on the wall A (point 1).
4. Turn the complete unit 180° without altering the height of the laser. F3
5. Mark the position of the visible laser line cross on the wall B (point 2).
6. Now move the unit directly in front of wall B. F4
7. Set the units height so that the laser dots height matches that of point 2.
8. Without changing the height of the laser, rotate it 180° to place the beam F5 near the mark on the first wall (step 3 / point 1 ).

Measure the vertical distance between point 1 and point 3. The difference must not be greater than :

2. Horizontal checking – inclination of the laser line

Check the laser line for inclination and perfectly straight projection

1. Mark three points (1, 2 and 3) on the floor at a distance of 5 m /16’5″ G2 from each other; the points must be in a perfectly straight line.
2. Position the laser at distance S = 5 m / 16`5″ from the line and exactly in front of the middle point you marked = position X
3. Switch the unit on.
4. Measure the height of the laser line at the points. Measurements X1 – X3 G3
5. Reposition the instrument. G4
6. Position the laser at distance S = 5 m / 16`5″ from the line and exactly in front of the middle point you marked = position Y G5
7. Measure the height of the laser line at the points. Measurements Y1-Y3

Vertical check

H1 You must create a reference to perform this test. Fasten a plumb line near to the wall. The laser unit should now be set up in front of this reference mark
H2 (distance Y) and the vertical laser line compared with it. The discrepancy between the centre of the laser line and the reference mark
H3 should be no greater than 1 mm ( 3/64″ ) over a length of 2 m ( 8 ft ).

Checking plumb lining

1. Switch the unit on I1
2. Place the laser so that its down beam is over a reference mark on the floor.
3.  Locate the position of the up beam on the ceiling and make a mark. I2
4. Rotate the laser 180° and realign the down beam over the reference mark on the floor.
5. Locate the position of the up beam on the ceiling and make a mark.
6. Measure the difference D between the two marks on the ceiling, which will be twice the actual error. The difference may not be greater than: 3 mm in 5 m (1/8″ in 16`5″).

Replacing the batteries

Slide the battery cover (4) in the direction of the arrow and insert new K batteries in accordance with the symbols in the battery compartment.
Suitable batteries can also be used.

Technical data

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