064100
Laser distance meter LD 50
Fig. 1
• Always switch off the Digital laser unit when it is not in use. If it is left switched on, it increases the risk of someone inadvertently staring into the laser beam.
• Do not attempt to repair or disassemble the laser distance meter. If repairs are attempted by unqualified personnel, it could result in serious injury. Any repair work required on this laser meter should only be conducted by customer service stations that are authorised by KWB.
• Do not operate the device in combustible areas, for example, in the vicinity of flammable liquids, gases, or dust.
• Use of accessories that have been designed for other laser devices could result in
serious injury.
• Keep batteries out of the reach of children.
Device description
– Digital laser - OVERVIEW (fig. 1)
1.LCD display– The large LCD display with white backlight makes it easy
to read the large-digit measurements clearly, even in poor lighting conditions.
2.The water and dust-proof keypad ensures safe and trouble-free operation
3.Positioning aid for conducting mea- surements from wall corners
4.1/4 inch tripod socket – for securing to a tripod (not included in delivery)
5.Battery compartment for four AAA batteries.
6.Laser aperture – emits the laser beam
7.Receiving lens – receives the reflected laser beam for determining the distance
The Digital laser digital laser distance meter is a highly accurate measuring tool that is
quick and easy to use.
Intended use
Technical specifications
Recommended use Indoors
Measuring range
0,1 - 50 m*
Measuring accuracy ± 2 mm*
Smallest unit displayed 1 mm
Laser class
2
Laser type λ = 635nm P < 1mW
Automatic switch off: - Laser: 20 seconds
- Measuring device: 5 minutes
Estimated battery life Up to 5,000
(use alkaline AAA batteries)
individual measurements
Battery
4 x 1.5 volt AAA batteries
Optimum operating temperature -5° C to 40° C
Storage temperature
-20° C to 60° C
Dimensions 113 x 56,4 x 35 mm
Weight
155g (without batteries)
*Important: The measuring range and accuracyof the device is reduced in the event of
unfavourableconditions, such as in bright sunlight or when measuring poorly reflective or
very rough surfaces; please use a reflectorin such cases (not included).
Safety precautions
0641-00
The device possesses a voltage range which can pose an electrical hazard to
humans and animals. This should only be screwed and / or disassembled by
authorised personnel. Similarly, maintenance and repair work should only be
conducted by electrical specialists and authorised service centres. The buyer
/ user operates the device at their own risk and under their own responsibility.
MAKE SURE you have read and understood all of the instructions in this manual
before using the product. Failure to follow all instructions may result in exposure
to laser radiation, electric shock, and/or bodily injury.
CAUTION: Do not attempt to modify the performance of the laser device in any
way. This may result in hazardous exposure to laser radiation.
LASER RADIATION. Do not stare into the beam. This is a class 2 laser product.
Only switch the laser on when using the device.
lmproper execution of operational procedures or the use of operating and adjusting elements in a way other than that specified in this manual can result in hazardous exposure to
radiation.
The use of optical instruments such as telescopes, tachymeters or other similar devices to
view the laser beam can increase the risk of eye damage.
This measuring tool has a built-in laser light. The laser is a Class2 and emits output
power of a maximum 1mW and 635 wavelengths. These lasers do not normally present an
optical hazard.
However, do not look directly into the beam as this can cause flash blindness.
Schauen Sie nie direkt in den
Laserstrahl. Der Strahl kann Ihre
Augen dauerhaft schädigen.
Do not stare at the Laser
beam, whose high energy
harms your eyes.
Laserleistung P<1mW, =635nm
Laserklasse 2 nach EN 60825-1:2007
6V
4 x 1,5V AAA
kwb tools GmbH & Co. KG • www.kwb.eu
The following label can be found on your laser
distance meter:
This indicates the location from which the digital laser distance meter emits the laser light. You should
be familiar with the location of the laser when using
this device. Make sure that all persons present are
aware of the risks that are associated with direct
eye contact with the laser beam.
• Do not remove or modify any of the product labels.
• The digital laser distance meter is not a toy. Keep it out of the reach of children at all times. The laser light generated by this device should never be directed towards any person under any circumstances.
• Do not use the device in the presence of children or allow children to operate the device.
• Do not position the device in such a way that can result in a person staring into the laser beam intentionally or by accident.
• Do not use the device on shiny or reflective surfaces such as sheet steel. The reflective surface could direct the beam back towards the operator.
0641-00_Laser_BA GB.indd 1
• Measuring distances, lengths, heights, and clearances
• Difficult measuring situations:
The Pythagorean Theorem mode enables indirect measurement
• Calculating areas and volumes
The automatic power-off function switches the device off after 5 minutes of inactivity to
preserve the batteries.
Keypadfunctions
Fig. 2
Please refer to the „Operation“ section of
READ
this manual for further information about the
3
2
1
CON
following functions and calculations.
5
4
1. The „Power“ button switches the device on/off.
6
2. The „Read / Con“ button switches on the laser and 8
7
conducts measurements; activates
continuous measurement.
3. The „Arrow“ button deletes the previous measurement;
resets the last entry.
4. Switch between the following modes: Single distance measurement, area, volume, single Pythagorean Theoremmode, double Pythagorean Theoremmode.
5. „Plus / Minus“ button – for adding and subtracting measurements.
6. Switch the measuring reference point: Rear of the device, position of the tripod socket,
front of the device, and positioning pin (for conducting measurements from internal corners).
7. The unit conversion button alternates between: Metres, millimetres, decimal feet, 1/16 inch increments, decimal inches and 1/16 inch increments.
8. The „Min / Max“ button activates the mode for minimum or maximum measurement.
LCD display
Full battery indicator
Empty battery indicator
Indicates that the measurement has been taken from a positioning pin.
Indicates that the measurement has been taken from the bottom of the device.
Indicates that the measurement has been taken from the position of the tripod
socket.
Indicates that the measurement has been taken from the front of the device.
Laser beam indicator
Single distance measurement
Area measurement
Volume measurement
Single Pythagorean Theorem measurement
Double Pythagorean Theorem measurement
Minimum measurement indicator
Maximum measurement indicator
Operation
Your digital laser distance meter is a precision instrument. Please observe the following
guidelines to ensure optimum performance:
• Do not direct the Digital laser unit towards the sun or other sources of bright light. This may cause a faulty reading or result in inaccurate measurements.
• Do not operate the device in wet, dusty, sandy or other adverse environments.
Such conditions may damage internal components and impair the accuracy of the measurement.
• If the digital laser distance meter is transferred to a warm environment from very cold conditions, or vice versa, allow it to acclimatise before use.
• Measuring errors can occur when conducting measurements against transparent liquids (e.g. water), clear objects (glass) or other similar translucent or low-density materials.
• Highly reflective surfaces deflect the laser beam and result in faulty measurements.
• Extremely bright surroundings combined with a poorly reflective surface will reduce the measuring range and accuracy of the device.
• Do not immerse the device in water. Wipe off any dirt using a damp, soft cloth. Do not use abrasive cleaning agents or solutions. Treat the surfaces of the device with the same care that you would apply to spectacle lenses or cameras.
• The accuracy of the device must be checked if it has been dropped or subjected to other mechanical stresses.
Inserting the batteries
This digital laser distance meter requires four AAA
Fig. 3
1.5 V batteries.
1. Press the catch to open the battery compartment.
2. Insert four new AAA alkaline batteries into the battery compartment in accordance with the
polarity markings. Pay attention to the correct polarity (+/-)!
3. Close the cover and secure it in place.
Note: Replace the batteries as soon as the „Empty“
battery indicator appears.
• Remove the batteries from the device if it is not going to be used for a prolonged period.
• The 4 AAA batteries should all be the same brand and type.
• Do not use a mixture of old and new batteries.
• Remove depleted batteries immediately and dispose of them in accordance with the local regulations. Never dispose of batteries in a fire.
Switching on/switching off the digital laser distance meter
1. Press the Power button (1) to switch on the device. The device will automatically revert to the single distance measuring mode, indicating that it is ready for use.
2. Press the Power button for approx. 2 seconds to switch off the device.
3. If a button is not pressed for 5 minutes, the device will switch off automatically to
preserve battery power.
Changing the measuring reference point:
The default reference point is the rear of the device. By pressing the measuring/reference
point button (6) this setting can be alternated between the tripod socket, the front of the
device, the positioning pin and the rear of the device; the next measurement will thereby be
conducted from the selected reference point.
When the device is switched off the reference point will automatically revert back to the rear
setting.
Changing the units
Press the unit conversion button (7) to alternate between metres, millimetres, decimal feet,
1/16 inch increments, decimal inches and 1/16 inch increments, as shown below.
Setting
Metres
Millimetres
Decimal feet
1/16 inch increments
Decimal inches
1/16 inch increments
Fig. 5
m
6. Aim at the new target.
7. Press the Read button again to conduct the second measurement.
Fig. 6
8. The second length is displayed on the bottom line of the screen in large digits and the laser beam switches off (fig. 7).
9. To conduct a new measurement repeat steps
5 to 8.
Note:
After selecting the area, volume or Pythagorean Theorem measurement mode press the Delete button to
revert back to the single distance measurement mode.
m
Fig. 7
m
m
Area measurement
1. Press the Mode button (4) to access the area
measurement mode; the flashing line in the symbol indicates the length to be measured (fig. 8).
Fig. 8
2. Press the Read button to activate the laser beam;
the laser indicator will flash.
3. Position the device in such a way that the laser is aimed at the point to be measured.
4 Press the Read button to display the measured length on the first line of the screen. (fig. 9).
5. The line for the width in the
flash.
Fig. 9
symbol starts to 6. Position the device in such a way that the laser is aimed at the point to be measured.
7. Press the Read button again to display the area unit on the bottom line of the screen; the width is
simultaneously displayed on the second line (fig. 10).
Fig. 10
8. Press the Read button to conduct a new
measurement.
Volume measurement
1. Press the Mode button (4) to select the volume measurement mode. The flashing line in the symbol indicates the length to be measured (fig. 11).
Fig. 11
2. Press the Read button to activate the laser; the laser indicator will now flash from top to bottom.
Distance
AreaVolume
Metresm2m3
Millimetresm2m3
Feet (decimal)
Feet2Feet3
Feet & 1/16 inch
Feet2Feet3
Inches (decimal)
Feet2Feet3
Inches & 1/16inch
Feet2Feet3
3. Position the device in such a way that the laser is aimed at the point to be measured.
4. Press the Read button to display the measured length on the first line of the screen. The line for the width in the
symbol will start to flash (fig. 12).
Conducting measurements
Hold the device at the point from which you want to measure, press the „Read“ button (2)
to switch on the laser and then press it again to conduct the measurement.
Note:
The laser will switch off after 20 seconds of inactivity. If a measurement is not conducted
within the 20 seconds, press the „Read“ button again to switch the laser back on.
Do not aim the laser at persons or animals and do not stare into the laser beam or view it
directly with optical instruments.
Delete function:
To delete the current measurement and display the previous measurement press the
„Delete/Arrow“ button (3). If the device is currently in the area, volume or Pythagorean
Theorem mode, press the Delete button repeatedly to revert back to the mode for single
distance measurement.
Single distance measurement
1. Press the Power button (1) to switch on the device; it will default to the single distance measurement mode (fig. 4).
2. Press the Read button to activate the laser; the laser indicator will now flash from top to bottom. Direct the laser at the point you want to measure;
3. Press the Read button again to conduct the measurement.
4. The length is displayed on the bottom line of the screen in large digits and the laser beam switches off (fig. 5).
5. To conduct a second measurement press the Read button again to activate the laser; the first measure-
ment is now displayed in the upper line of the screen (fig. 6).
Fig. 12
5. Position the device in such a way that the laser is aimed at the point to be measured.
6. Press the Read button again to display the width on the second line of the screen. The line for the height in the
symbol will start to flash (fig. 13).
Fig. 13
7. Press the Read button again to display the volume on the bottom line of the screen; the height is
simultaneously displayed on the third line (fig. 14).
8. Press the Read button to conduct a new measure- ment.
Fig. 14
Fig. 4
m
Continuous measurement indicator
18.09.12 15:08
064100
Single Pythagorean Theorem measurement mode
The Pythagorean Theorem measurement mode is used
to measure distances that cannot be measured directly
due to an obstacle obstructing the laser beam or if no
target surface is suitable as the reflector. Correct results
can only then be achieved if the laser beam and the
relevant distance produce a precise right angle (90°).
The length of BC is to be determined in the illustrated
example (fig. 15). The section AB and AC must be
measured for this purpose. AC and BC must form a
right angle.
1. Press the Mode button (4) to select the single
Pythagorean Theorem measurement mode (fig. 16).
2. The flashing line in
indicates the distance AB to be measured.
3. Press the Read button to activate the laser beam; the laser indicator will flash.
4. Position the device in such a way that the laser is aimed at point B.
5. Press the Read button to display the measured length of AB on the first line of the screen (fig. 17).
6. The flashing line in
indicates the distance AC to be measured.
7. Without changing device position A aim the laser perpendicularly at target C.
8. Press the Read button again to display the
calculated length of BC on the bottom line of the screen; the distance AC is simultaneously displayed on the second line (fig. 18).
9. Press the Read button to conduct a new measure- ment.
Fig. 15
Fig. 16
Fig. 17
Use the double Pythagorean Theorem measurement
mode if one end of a section to be measured is indirectly higher than the measuring position and the other
end of this section is lower than the measuring position.
The section BC is to be determined in the illustrated example (fig. 19); A is the measuring position. The sections
AB, AO and AC must be measured for this purpose. AO
and BC must form a right angle.
1. Press the Mode button (4) to select the double Pythagorean Theorem measurement mode (fig. 20).
2. The flashing line in
indicates the distance AB to be measured.
3. Press the Read button to activate the laser beam; the laser indicator will flash.
4. Position the device in such a way that the laser is aimed at point B.
5. Press the Read button to display the measured length of AB on the first line of the screen (fig. 21).
6. The flashing line in
indicates the distance AO to be measured.
7. Without changing device position A aim the laser perpendicularly at target O.
8. Press the Read button to display the measured length of AO on the second line of the screen (fig.
22).
9. The flashing line in
indicates the distance AC to be measured.
10. Without changing device position A aim the laser at target C.
11. Press the Read button again to display the indirect length of BC on the bottom line of the screen; the section AC is simultaneously displayed on the third line (fig. 23).
12. Press the Read button to conduct a new measure- ment.
The continuous measurement function (positioning) is used for transferring measurements
e.g. from construction plans. In the continuous measurement mode the measuring device
can be moved relative to the target, whereby the measured value is updated approx. every
0.5 seconds in the display.
For example, the user can measure the distance between the device and a wall and then
move away from the wall while the current distance is updated continuously on the screen;
the user is then informed when the correct distance has been reached.
1. Press the Mode button (4) to select the single distance measurement mode. If the device is currently in another mode, press the Delete button to revert back to the single distance measurement mode.
2. Press and hold the Read button for approx. 3 seconds to activate the continuous mea- surement mode.
3 Move the device until the required distance is displayed
at the bottom of the screen.
Fig. 24
4. Press the Read button to interrupt the measurement.
The current measured value is displayed on the bottom line of the screen. The minimum and maxi-
mum values are displayed on the first and second lines of the screen (fig. 24).
5. Press the Read button again to start a new conti-
nuous measurement.
Minimum/Maximum measurement
Fig. 18
Notes:
• The distance AC must be shorter than the hypotenuse (AB); if not, „Err008“ will appear on the display reminding you to measure the distance of AC again.
• When conducting the two measurements make sure they are taken from the same starting point (A) and that the second measurement is perpendicular to the target (C). Accuracy when conducting the measurements will help to produce the most accurate distance calculation.
Double Pythagorean Theorem
measurement
Continuous measurement (positioning)
This function allows the user to determine the minimum or maximum distance from a fixed
reference point. As a rule it is used to measure diagonal distances (maximum values),
horizontal distances or vertical distances (minimum values). The function can be transferred
to the area, volume, Pythagorean Theorem measurement and single distance measurement
modes. The Min/Max function can help to eliminate measuring deviations that are caused
by holding the device or aiming it at the target incorrectly. It can help to produce an accurate calculation of the area, volume and indirect length.
1. Press the Mode button (4) to select the area, volume or Pythagorean Theorem
measurement mode.
2. Press the Min/Max button (8) to transfer the Min/Max function.
3. Press the Read button to activate the laser, then aim the laser beam at the target you wish to measure and press the button again to start the minimum or maximum measure- ment.
4. Slowly sweep the laser left and right or up and down over the desired target point.
5. Press the Read button to interrupt the Min/Max measurement; the minimum or maxi- mum value is displayed on the corresponding line of the screen as the exact length for the calculation.
Addition and subtraction
Fig. 19
The single distance, area, volume and indirect length can be added or subtracted by the
addition and subtraction function.
1. Conduct the first measurement.
2. Press the „Plus/Minus“ button; the „+“ or „-“ symbol appears after the battery indicator.
3. Conduct the second measurement.
4. The sum of the measurements is displayed on the bottom line of the screen and the last measurement results are displayed simultaneously on the upper line of the screen.
Fig. 20
Using a tripod (not included)
The use of a tripod is particularly helpful for measuring
larger distances. The measuring device can be screwed
onto a commercially available tripod by using the 1/4“
thread located on the bottom of its housing.
1. Mount the device on the tripod.
2. Set the thread as the measuring reference point by pressing button 6 (fig. 25).
3. Conduct the measurement.
Troubleshooting
Problem Cause
The device will not The batteries have not been
switch on
inserted correctly
Batteries exhibit insufficient
voltage;
Contact problems with the
Power button.
The device emits an
This is caused by the optical an audible click when path inside the device;
conducting a measurement it is completely normal
Error codes on the LCD Please refer to the „Error signals“ display while measuring section above
Please refer to the „Error signals“
section above
Maintenance
The Digital laser unit is a low-maintenance device. However, in order to maintain its performance the following simple guidelines must be observed.
1. Always handle the device with care. It is an optical instrument like a camera and should be treated as such.
2. Avoid exposing the device to shock, continuous vibration or extreme hot and cold tem
peratures.
3. Always store the device indoors. When it is not in use ALWAYS store the device in its protective case.
4. Always keep the device away from dust and moisture. Only use a clean, soft cloth when cleaning. If necessary, moisten the cloth lightly with pure alcohol or some water.
5. Never touch the lens with your fingers.
6. Check the batteries on a regular basis to prevent premature aging. If the device is not going to be used for a prolonged period, ALWAYS remove the batteries.
7. Replace the batteries when the empty battery symbol is displayed on the LCD screen.
8. Do not disassemble the device under any circumstances; doing so can expose the user to hazardous radiation.
9. Never attempt to modify any part of the laser lens.
Warranty
Warranty conditions:
A warranty period of 12 months from the date of purchase/date of invoice applies to our
tools for commercial customers. If we have granted an extended warranty period, this said
period will be noted separately in the operating manual for the tool in question.
Claims:
If you wish to claim under our warranty or guarantee, please return the entire tool and your
invoice to us, postage paid, or send it to one of our authorised service centres.
Your rights under our warranty or guarantee:
Claims for repairs only relate to materials or manufacturing defects and are subject to the
intended use of the tool. Wear parts are not covered by such claims. Installation of third
party components, improper use and storage, as well as obvious failure to observe the
operating instructions will void your warranty.
Repairs:
All repairs must be conducted on our premises or by an authorised KWB service centre.
Fig. 25
Error signals
Fig. 21
Fig. 22
Fig. 23
which can appear on the LCD display during the measuring process:
Error code Cause
Solution
Err001 The reflected laser light is too
Do not direct the laser at a highly
intense.
reflective surface; cover the surface
with white paper if necessary.
Err002
Out of range; the measuring
Conduct measurements within a range
range for this device is bet- of 0.1 to 50 m.
ween 0.1 and 50 m.
Err003
The target surface does not
Select another target surface or cover
reflect the laser sufficiently. it with white paper.
Err004
The temperature is too high.
Wait until the device has reached the permitted operating temperature
(-10° to 50° C)
Err005
The temperature is too low.
Wait until the device has reached the permitted operating temperature
(-10° to 50° C)
Err006 Low battery; a reminder to
Insert new batteries
replace the batteries.
Err007 Heavy vibration, or the device
Always ensure the device is kept
was moved too quickly during the steady.
measurement.
Err008 Incorrect input; the measured Conduct the measurement again;
length of one side of the right-
the hypotenuse must always be
angled triangle is longer than the longer than the first side length.
hypotenuse.
Results obtained by using the laser distance
measurermust always be checked. kwb cannot
assume liabilityfor measurement errors and
consequentialdamageresulting from the same.
Laser class 2
pursuant to
EN 60825-1:2007
Laser beam,
do not look into
beam!
Caution!
Electrical equipment that becomes
unusable is not part of household refuse.
Please take it to the collection point which
is responsible for it.
DECLARATION OF CONFORMITY
We, kwb tools GmbH & Co. KG, make sole responsibility in declaring that the Laser
distance meter referred to in this declaration complies with the following standards:
EN 60825-1:2007, EN 61010-1:2001, EN 61326/A3:2003, EN 6100-4-2/A2:2001,
EN 6100-4-3:2002 and the 2004/108/EC guideline´s provisions.
kwb Development
0641-00_Laser_BA GB.indd 2
Solution
Re-insert the batteries in
accordance with the polarity
markings in the battery
compartment
Replace with new
batteries
Press the button using more
force or send the device for repair
n/a
kwb tools GmbH • Industriestraße 35, 28816 Stuhr, Germany • www.kwb.eu
Member of the
Group
18.09.12 15:08