A
1 2
B
3
4
8
9
14
F
I
J
C
10
11
12
13
12
13
E
H
5
6
7
D
G
K
1
Symbols
1.1 Warning notices
The warning notices differ from one another
concerning the type of danger through the
following signs:
Î Caution warns against damage to property.
Î Warning warns against bodily harm.
Î Danger warns against danger to life.
Composition of the warning notices
 Avoid using accessories of other producers
that are not recommended by Stabila.
 Make sure that the device is not used
Â
Â
Â
Signal words
Type and source of the danger!
 Measure to avoid the danger.
1.2 Other symbols
Notes
Note:
Notes on appropriate handling of laser
measuring devices.
Operating instructions
Composition of the operating instructions:
 Guidance to an operation.
Indication of an outcome, if necessary.
Schedules
Composition of the non numbered schedules:
Î Schedule level 1
Î Schedule level 2
Composition of the numbered schedules:
1. Schedule level 1
2. Schedule level 1
2.1 Schedule level 2
2.2 Schedule level 2
2
Safety and dangers
 Make sure that the device is not used
without instructions.
 Make sure that the device is used exclusively
according to the instructions.
 Make sure that the safety settings are not
disabled.
 Make sure that indication labels and caution
labels are not removed.
not open the device with tools
(screwdriver etc.).
 Make sure that the device is not converted or
modified.
 Do
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Â
Â
3
carelessly:
Î when working on scaffolds
Î when climbing ladders
Î when measuring near running machines
Î when measuring on open machine parts
or installations
Avoid aiming directly at the sun.
Avoid blinding other persons intentionally
(also in darkness).
Make sure that the measuring position is
secured sufficiently.
(e.g. in streets, on construction sites, etc.)
Make sure that the device is in proper and
flawless condition.
Do not use a defective device.
Correct ways of
employment
Î measuring of distances
Î calculation of functions
e.g. areas and volumes
Î Use the device exclusively in an atmosphere
that is permanently inhabitable by humans.
4
Foreseeable misuse
 Do not use the device as a laser pointer.
 Do not use the device in explosive or
aggressive environments.
5
Areas of responsibility
5.1 Area of responsibility of the
manufacturer of the original
equipment
Stabila Messgeräte, D-76855 Annweiler am
Trifels (hereafter Stabila):
Î Stabila is responsible for the safety-related
flawless delivery of the device, including the
operating instructions.
Î Stabila is not responsible for accessories
produced by other manufacturers.
5.2 Area of responsibility of the
operator
Changing the batteries
 Change the batteries when the battery
symbol is flashing permanently.
8
Caution
Damage to property due to repairing!
 In case of malfunctions, contact the dealer.
How to use
8.1 Measuring conditions
The quality of the measurement depends on the
surfaces to which you are measuring.
Measurement errors
The operator is obliged to observe the following:
Î He understands the protection information
on the device and the operating instruction.
Î He is familiar with the customary in-house
accident control directives.
6
Overview
6.1 Keys
See drawing A:
1. laser emitter
2. receiver lens
3. display
4. on/measure
5. clear/off
6. measuring plane/unit
7. area/room volume/Pythagoras
6.2 Display
See drawing D:
8. measuring plane
9. area/room volume/Pythagoras
10. battery symbol
11. second row
12. fractions/exponents
13. units
14. summary row
7
Initial operation
Insert the batteries
See drawing E:
 To ensure a reliable use, use exclusively
alkaline batteries.
 Remove battery compartment cover.
 Insert alkaline batteries (2 x AAA) pay
attention to the correct polarity.
 Close the battery compartment cover.
Caution
Damage to property due to use of wrong
measuring results!
 Avoid measuring errors due to unexpected events
during distance measuring.
 Perform a control measurement.
Measuring errors are possible in case of:
Î colourless fluids (e.g. water)
Î clean, translucent glass
Î styrofoam or similar semi-translucent
surfaces
Î strongly reflecting targets that deflect the
laserbeam
Î measurements aimed at moving objects
Causes:
Î Strongly reflecting targets deflect the laser
beam and cause measuring errors.
Î Non-reflecting, dark surfaces increase the
measuring time.
For constantly high-quality
measurements
 Perform control measurements periodically.
 Perform control measurements before and
after important measurements.
8.2 Switching on/off
 Switch on the device by pressing key 4
briefly.
The device shows the battery symbol until
another key is pressed.
 Switch off the device by holding key 5 for
several seconds.
If no key is pressed for 180 seconds, the device
switches off automatically.
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8.3 Clear key
 Undo the most recent action by pressing key
5 briefly.
8.4 Adjusting the measuring
plane
See drawing F - H:
Rear measuring plane is the standard setting.
 For measurement from front edge, press key
6 briefly.
 For measurement from rear edge, press key 6
briefly again.
8.5 Unit setting
Metric system is the standard setting.
 To change the unit, hold key 6 for several
seconds.
With every keypress, the device switches to the
next unit.
Possible units:
Î meters with mm display
Î feet inch fractional
Î summary row up to 1/16 inch
Î second row up to 1/8 inch
Î inch fractional
Î summary row up to 1/16 inch
Î second row up to 1/8 inch
9
Measuring
9.1 Measuring single distances
 Press key 4 briefly.
 Aim active laser at target area.
 Press key 4 briefly.
The device measures the distance.
The device displays the result immediately.
9.2 Continuous measuring
See drawing J:
This function enables distances to be staked out.
 Hold key 4 for several seconds.
Continuous measuring starts.
 Press key 4 briefly.
Continuous measuring stops.
The value last measured appears in the summary
row.
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10 Functions
10.1 Area
See drawing I:
 Press key 7 once.
The area symbol appears on the display.
 Press key 4 and measure the first distance.
(e.g. length).
 Press key 4 and measure the second
distance.
(e.g. width).
The device displays the result in the summary
row and the respective measured distance to the
next measurement in the second row.
10.2 Room volume
 Press key 7 twice.
The volume symbol appears on the display.
 Press key 4 and measure the first distance
(e.g. length).
 Press key 4 and measure the second distance
(e.g. width).
 Press key 4 and measure the third distance
(e.g. height).
The device displays the result in the summary
row and the respective measured distance to the
next measurement in the second row.
10.3 Pythagoras
See drawing K:
 Press key 7 three times.
The Pythagoras symbol appears on the
display.
 Press key 4 and measure the first distance
(diagonal measurement).
 Press key 4 and measure the second distance
(horizontal measurement).
The device displays the result in the summary
row and the respective measured distance to the
next measurement in the second row.
11 Troubleshooting
Temperature range:
- Storage
 If the message Error does not disappear
after switching on the device repeatedly,
please contact the dealer.
 If the message InFo appears with a number,
observe the instructions in the following
table.
No.
Cause
Correction
204 Calculation error
Perform measurement
again.
252 Temperature too high
Let the device cool
down.
253 Temperature too low
Warm the device up.
255 Reception signal too
Change target surface
weak, measuring time (e.g. white paper).
too long
256 Input signal too high
Change target surface
(e.g. white paper).
257 Measuring error, too
Shadow the target
much background light area.
258 Measurement outside Mind the range.
of the measuring range
- Operation
-25 °C to 70 °C
-13 °F to 158 °F
0 °C to 40 °C
32°F to 104°F
* under favourable conditions (good target
surface, room temperature) up to 10 m (33 ft).
Under unfavourable conditions such as bright
sunlight, a very weakly reflecting target surface
or large temperature fluctuations, the error can
increase to ± 0.25 mm/m (± 0.003 in/ft) for
distances over 10 m (33 ft).
12.1 Electromagnetic
compatibility (EMC)
Warning
Possible disturbance of other devices
(e.g. safety equipment, medical equipment)
due to electromagnetic radiation!
 Observe the safety instructions of the respective
devices.
260 Laser beam interrupted Repeat the
measurement.
Despite the compliance with all requirements of
the corresponding directives and norms, a
disturbance of other devices is possible.
12 Technical data
12.2 FCC statement (applic. in
U.S.)
Range
0.1 m to 30 m
0.33 ft to 98 ft
Measuring accuracy (2 σ)
typ.: ± 2.0 mm*
± 0.08 in*
Smallest unit displayed
1 mm
0.08 in
Laser class
2
Laser type
635 nm, < 1 mW
Automatic switch-off
after 180 s
Continuous measuring
yes
Addition/Subtraction
yes
Dimension (H x D x W)
116 x 51 x 26 mm
Battery durability
(2 x AAA)
up to 3000
measurements
Weight
110 g
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a
residential installation. This equipment
generates, uses and can radiate radio frequency
energy and, if not installed and used in
accordance with the instructions, may cause
harmful interference to radio communications.
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful interference to
radio or television reception, which can be
determined by turning the equipment off and
on, the user is encouraged to try to correct the
interference by one or more of the following
measures:
 Reorient or relocate the receiving antenna.
 Increase the separation between the
equipment and receiver.
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 Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
 Consult the dealer or an experienced radio/
TV technician for help
Warning
Laser class 2 products
Do not look into the laser beam and do not
unnecessarily aim at other persons . The eye is
usually protected by preventive reactions such
as the eyelid closure reflex.
Warning
Changes or modifications not expressly
approved by Stabila for compliance could
void the user's authority to operate the
equipment. Position of the product label see
first page!
Bodily harm due to laser beam!
 Do not look directly into the laser beam.
 Do not look directliy into the laser beam with
optical appliances (such as binoculars,
telescopes).
Product labelling:
This device complies with part 15 of the FCC
Rules.
Operation is subject to the following two
conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation.
Labels
Position of the type label see drawing C
12.3 Laser classification
The Stabila LD 300 generates a visible laser
beam that is emitted on the front of the device.
The device complies with laser class 2 according
to:
Î IEC60825-1: 2007 Safety of laser products
13 Care
 Clean the device with a damp, soft cloth.
 Never immerse the device in water.
 Never use aggressive cleaning agents or
solvents.
14 Warranty
The Stabila LD 300 has a two-year warranty.
For further information on this, contact your
dealer.
Subject to change (drawings, descriptions and
technical data).
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15 Disposal
Caution
Damage to property due to inappropriate
disposal!
 Dispose of the device and the batteries according
to the national, country-specific disposal
directives.
 Protect the device and the batteries from access
of unauthorised persons.
For disposal, observe the following:
 Do not put the appliance and the batteries
into the household waste.
 Dispose of the device and the batteries
appropriately.
Product-specific information on treatment and
disposal can be downloaded from the Stabila
homepage http://www.stabila.de or requested
of your dealer.
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