Stabila LAX 50 G User manual

Operating instructions
How true pro’s measure
LAX 50 G

LAX 50 G
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Contents
Section Page
• 1. Intended use 3
• 2. Safety information 3
• 3. Before rst commissioning 3
• 4. Components of the unit 4
• 5. Commissioning 5
• 5.1 Inserting batteries/Battery replacement 5
• 5.2 Switching the unit on 5
• 6. Applications 6
• 7. Checking accuracy 7
• 7.1 Vertical check 7
• 7.2 Horizontal check 8
• 8. Care and maintenance 10
• 9. Recycling programme for our EU customers 10
• 10. Technical data 10

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2. Safety information
Warning:
In Class 2 laser units, your eyes are usually protected from
accidental, short-term exposure to the laser beam by the
lid-closing reflex and/or the reflex reaction to turn one's
head. If a laser beam hits your eye, consciously close your
eyes and move your head out of the path of the beam.
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.
• Do not aim the laser beam directly at people.
• Avoid dazzling other people with the unit.
• Keep the unit out of the reach of children.
• If other operating or adjustment equipment than that
specified here is used or if the unit is operated in ways
other than described here, this may result in hazardous
exposure to radiation.
• No manipulation (modification) of the laser unit is
permitted.
• If the unit is dropped or subjected to strong vibrations
it may malfunction.
• Always check that the unit is functioning correctly and
accurately before you start work, particularly if it has
been exposed to heavy vibrations.
• Do not use in explosive or corrosive environments.
• Do not dispose of the batteries or unit with domestic
waste.
• Keep this user manual in a safe place and hand it
over when passing the unit to another person.
3. Before rst commissioning
Carefully read the safety instructions and operating
instructions.
Only allow qualied persons to operate the
unit.
Ensure that the safety precautions are
observed.
To insert batteries -> Battery replacement
1. Intended use
Congratulations on the purchase of your STABILA measuring
tool. The STABILA LAX 50 G is an easy-to-operate cross
line laser. It is self-levelling through a range of ± 4.5° and
enables levelling that is both fast and accurate. The laser
lines, which are projected horizontally and vertically, allow
you to work with precision. Their green colour also ensures
that you can see them perfectly, even in bright lighting
conditions.
If you still have questions aer reading through
the operating instructions, you can obtain advice
by telephone:
+49 / 63 46 / 3 09 - 0
1.800.869.7460 U.S. and Canada
LASER
2
510 - 530 nm

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1. Casing
2.Exit window for horizontal and vertical laser line
3. ON / OFF sliding switch with transport lock
4. Rough adjustment vial
5. Clamping jaws
6. Locking lever for clamping jaws
7. Battery compartment lid
8. Foot adapter
9. 1/4" tripod socket
10. Foot
11. 1/4" threaded screw
12.Magnets
13. Hanging hole
14. 5/8" tripod socket
4. Components of the unit

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Open the battery compartment cover 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.
Dispose of used batteries at suitable
collection points – not with household waste.
If you do not intend to use the unit for an
extended period, remove the batteries.
3 x 1.5 V
Alkaline
AA, LR6, Mignon
5.1 Inserting batteries/Battery replacement
5. Commissioning
The laser lines flash if the laser unit is at
too steep an angle.
The laser unit is outside the self-levelling
range and cannot level itself automatically.
Place the laser unit in the working position.
Use the sliding switch to switch on the laser unit.
Horizontal and vertical laser lines appear.
The LAX 50 G levels itself automatically.
Always use the centre of the laser line when marking and
aligning!
5.2 Switching the unit on

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6. Applications
Clamping onto round proles
Using the clamping side, push the LAX 50 G onto the round
prole (maximum Ø 30 mm / 13/16 “) until you detect the
clamping jaws latching into place. Use the clamping lever to
secure the clamping jaws.
Using with the foot
You can use the foot to x the LAX 50 G in a specic position.
Thanks to the hanging hole and magnets, it is even possible
to attach the foot to construction elements.
The 5/8" tripod socket allows you to mount the unit on
a construction tripod.
Use the 1/4" thread to secure the adapter on the foot, then
insert the LAX 50 G in the adapter. Rotate the unit to ensure
the laser lines are precisely aligned.
The 1/4" tripod socket in the adapter also allows you to
mount the unit on a camera tripod.
KLIC
K

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The LAX 50 G cross line laser from STABILA is designed
for use on building sites and is perfectly adjusted before
leaving our premises. As with all precision instruments,
you must regularly check that the unit's accuracy is
calibrated. Always check this before you start work, par-
ticularly if the unit has been exposed to heavy vibrations.
Horizontal check
Vertical check
7. Checking accuracy
7.1 Vertical check
Checking the vertical laser line:
Create a reference line, e.g. with a plumb line.
Set up and align the LAX 50 G at distance Y in front of
this reference line.
Compare the laser line with the reference line.
Do not allow the laser line to deviate from the reference line
by more than 1 mm (11/256”) over a distance of 2 m ( 7) !
3
1”
3

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7.2 Horizontal check
A Checking the horizontal laser line level
2 parallel walls at least 5m / 16’5” apart (distance S) are
required for the horizontal check.
1. Position the LAX 50 G as close as possible to wall A on
a horizontal surface.
2. Align the LAX 50 G with wall A using the exit window.
3. Switch on the laser unit.
4. Once automatic levelling has ended, mark the cross
projected onto wall A. Point 1.
5. Rotate the LAX 50 G through 180° and align with wall B
using the exit window.
6. Once automatic levelling has ended, mark the cross
projected onto wall B. Point 2.
7. Now reposition the laser unit so that it is directly in
front of wall B. Align the LAX 50 G with wall B using
the exit window.
8. Move the laser line cross until it precisely coincides
with point 2.
9. Rotate the LAX 50 G through 180° and align with wall A
using the exit window. Do not adjust the height.
10.Move the laser line cross by turning the casing until it
precisely coincides with the marking line of point 1.
11. Once automatic levelling has ended, mark the cross
projected onto wall A. Point 3.
12. Measure the vertical distance between points 1 and 3.
Distance S to the wall Maximum permissible distance:
5 m 5.0 mm
10 m 10.0 mm
15 m 15.0 mm
Distance S to the wall Maximum permissible distance:
16’5” 3/16”
32’10” 3/8”
49’3” 5/8”
2
A B
A B
B
A

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S = 5m
5m
5m
X1
X2 X3
7.2 Horizontal check
B Horizontal check – Inclination of the laser line
Checking the laser line for inclination and to ensure the
projection is exactly straight.
1. On the floor, mark 3 points 1–3 in an exact line at a
distance of 5m / 16’5” from one another.
2. Position the laser S = 5m / 16’5” from the line, exactly
in front of the middle point = position X.
3. Switch on the unit.
4. Measure the height of the laser line at the points.
Measurements X1–X3
5. Reposition the unit.
6. Position the laser S = 5m / 16’5” from the line, exactly
in front of the middle point = position Y.
7. Measure the height of the laser line at the points.
Measurements Y1–Y3
∆1 = X1 - Y1 ∆2 = X2 - Y2 ∆3 = X3 - Y3
The following applies to the dierences:
Δ total 1 = Δ 1 - Δ 2 < ± 5 mm 3/16”
Δ total 2 = Δ 3 - Δ 2 < ± 5 mm 3/16”
Pay attention to the plus or minus signs during calculations!

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10. Technical data
Laser type: Green diode laser,
wavelength 510–530nm
Power output: < 1mW, laser class 2 in accordance with IEC 60825-1:2014
This product compl. with the appl. requ. of 21CFR, parts 1040.10 and 1040.11.
Self-levelling range: approx. ± 4.5°
Levelling accuracy*: ± 0.5mm/m ±5/18” over 50 
Batteries: 3 x 1.5 V alkaline, size Mignon, AA, LR6
Battery life: approx. 7 hours (alkaline)
Operating temperature range: -10°C to +50°C / 14°F to +122°F
Storage temperature range: -20°C to +60°C / -4°F to +140°F
Subject to technical modications.
* when operated within the specied temperature range
This STABILA laser measuring unit is a precision optical instrument and
should be handled with care.
Window apertures, display windows:
Dirty window glass impairs the optical function.
Clean the unit using only a so cloth and a little water or if necessary
a mild detergent.
Casing:
Clean the unit with a damp cloth.
• Do not use solvents or thinners.
• Do not immerse the unit in water.
• Do not unscrew the laser unit.
Transport and storage
• Remove the batteries if you do not intend to use the unit for
some time.
• Do not store the unit when damp.
• Allow the unit and carry case to dry first if necessary.
8. Care and maintenance
In accordance with WEEE regulations, STABILA oers a recycling programme
for electronic products when they reach the end of their service life.
For more information call: +49 / 6346 / 309-0
9. Recycling programme for our EU customers

STABILA Messgeräte
Gustav Ullrich GmbH
P.O. Box 13 40 / D-76851 Annweiler
Landauer Str. 45 / D-76855 Annweiler
USA
Canada
STABILA Inc.
332 Industrial Drive
South Elgin , IL 60177
www.stabila.com
+ 49 63 46 309 - 0
+ 49 63 46 309 - 480
[email protected]
www.stabila.com