Trotec TD120 User manual

TRT-BA-TD120-TC230125TTRT04-001-EN
TD120
EN
ORIGINAL INSTRUCTIONS
LASER DISTANCE MEASURING
DEVICE

2 EN
laser distance measuring device TD120
Table of contents
Notes regarding the instructions .........................................2
Safety .....................................................................................2
Information about the device................................................4
Transport and storage...........................................................6
Operation ...............................................................................6
Maintenance and repair ......................................................12
Errors and faults..................................................................12
Disposal ...............................................................................13
Notes regarding the instructions
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
Warning of laser radiation
This symbol indicates dangers to the health of persons
due to laser radiation.
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information (e.g.
material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
Follow the manual
Information marked with this symbol indicates that the
instructions must be observed.
You can download the current version of the instructions and
the EUdeclaration of conformity via the following link:
TD120
https://hub.trotec.com/?id=47208
Safety
Read this manual carefully before starting or using the
device. Always store the manual in the immediate vicinity
of the device or its site of use.
Warning
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future
reference.
• Do not use the device in potentially explosive rooms or
areas and do not install it there.
• Do not use the device in aggressive atmosphere.
• Do not immerse the device in water. Do not allow liquids to
penetrate into the device.
• The device may only be used in dry surroundings and must
not be used in the rain or at a relative humidity exceeding
the operating conditions.
• Protect the device from permanent direct sunlight.
• Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
• Do not open the device.
• Avoid looking directly into the laser beam.
• Never point the laser beam at people or animals.
• Never charge batteries that cannot be recharged.
• Different types of batteries and new and used batteries
must not be used together.
• Insert the batteries into the battery compartment according
to the correct polarity.
• Remove discharged batteries from the device. Batteries
contain materials hazardous to the environment. Dispose
of the batteries according to the national regulations.
• Remove the batteries from the device if you will not be
using the device for a longer period of time.
• Never short-circuit the supply terminal in the battery
compartment!

EN 3
laser distance measuring device TD120
• Do not swallow batteries! If a battery is swallowed, it can
cause severe internal burns within2hours! These burns
can lead to death!
• If you think batteries might have been swallowed or
otherwise entered the body, seek medical attention
immediately!
• Keep new and used batteries and an open battery
compartment away from children.
• Only use the device, if sufficient safety precautions were
taken at the surveyed location (e.g. when performing
measurements along public roads, on building sites etc.).
Otherwise do not use the device.
• Observe the storage and operating conditions (see
Technical data).
Intended use
Only use the device for measuring distances, areas and volumes
by means of the integrated laser and within the measuring
range specified in the technical data. Observe and comply with
the technical data.
To use the device for its intended use, only use accessories and
spare parts which have been approved by Trotec.
Foreseeable misuse
Do not use the device in potentially explosive atmospheres, or
for measurements in liquids. Never point it at people or animals.
Trotec accepts no liability for damages resulting from improper
use. In such a case, any warranty claims will be voided.
Any unauthorised modifications, alterations or structural
changes to the device are forbidden.
Personnel qualifications
People who use this device must:
• be aware of the dangers that occur when working with
laser measuring devices.
• have read and understood the instructions, especially the
Safety chapter.
Safety signs and labels on the device
Note
Do not remove any safety signs, stickers or labels from
the device. Keep all safety signs, stickers and labels in
legible condition.
The following safety signs and labels are attached to the device:
Safety
symbol
Meaning
The warning sign is located on the back of the
device and indicates that the device is equipped
with a class2 laser. The power is less than
1.0mW. The frequency range of the laser is630
to 670nm.
Do not look directly into the laser beam or the
opening from which the laser beam emerges!
The warning sign is located next to the laser.
Do not look directly into the laser beam or the
opening from which the laser beam emerges!
Residual risks
Warning of electrical voltage
There is a risk of a short-circuit due to liquids
penetrating the housing!
Do not immerse the device and the accessories in
water. Make sure that no water or other liquids can
enter the housing.
Warning of electrical voltage
Work on the electrical components must only be
carried out by an authorised specialist company!
Warning of laser radiation
Laser class2, Pmax.: <1mW, λ: 400-700nm,
EN60825-1:2014
Do not look directly into the laser beam or the opening
from which it emerges.
Never point the laser beam at people, animals or
reflective surfaces. Even brief eye contact can lead to
eye damage.
Examining the laser output aperture by use of optical
instruments (e.g. magnifying glass, magnifiers and the
like) entails the risk of eye damage.
When working with a laser of class2, observe the
national regulations on wearing eye protection.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.

4 EN
laser distance measuring device TD120
Warning
The device is not a toy and does not belong in the
hands of children.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Caution
Keep a sufficient distance from heat sources.
Note
To prevent damages to the device, do not expose it to
extreme temperatures, extreme humidity or moisture.
Note
Do not use abrasive cleaners or solvents to clean the
device.
Information about the device
Device description
The laser distance measuring device TD120 is used to
determine distances, areas and volumes in interior spaces.
Indirect measurements (e.g. height measurements of walls or
furniture) are carried out using the Pythagoras function.
With two built-in spirit levels, you can align the device
horizontally and vertically. The tilt sensor allows to measure
angles up to 90°.
The device is equipped with separate operating elements for the
different measuring functions. The multi-line, backlit display
indicates the determined values and measuring functions.
Measured values can be added or subtracted and up
to99measurements can be retrieved from the data memory.
Measuring distance
The range of the device can be gathered from the Technical
data chapter. Under certain conditions – e.g. at night, in twilight
or when the target is hidden in the shade – greater distances
are possible even without target plate. During the day use a
target plate to increase the distance for poorly reflecting targets.
Target surfaces
There might be measurement errors when the laser encounters
colourless liquids (e.g. water), dust-free glass, styrofoam or
other semi-permeable materials. The measurement result may
also be falsified if the laser encounters a high-gloss surface and
is deflected by it. Non-glossy, non-reflective or dark surfaces
can extend the measurement duration.
Device depiction
1
2
3
4
4
5
6
No. Designation
1Laser
2Display
3Operating elements
4Spirit levels
5Receiving lens
6Battery compartment cover

EN 5
laser distance measuring device TD120
Operating elements
7
8
9
10
11
12
No. Designation Function
7button /
MEAS
Press briefly: switching the device on/
measuring
Press and hold:
starting continuous distance measurement
8Storagebut-
ton
Press briefly: call up history
When in history: requests previous value in
the history
Press together with CLEAR/OFFbutton:
clears data memory
9CLEAR/
OFFbutton
Press briefly: switches to the last
measuring mode/deletes the last measured
value
Press together with Storagebutton: clears
data memory
Press and hold: Switching the device off
10 UNIT/
button
Press briefly: change the reference point
Press and hold: change units (m/ft/ft+in/in)
11 +/-button When in measuring mode: add/ subtract
next measured value
When in history: Request next value in the
history
12 FUNCbutton change measuring mode
Display
13 14 15 16 17
18
19
20
21
22
23
24
25
26
27
28
No. Display element
13 Inclination angle indication
14 History indication
15 Fault indication
16 individual measurement
continuous measurement
17 Battery status
18 MAX: highest measured value during continuous
measurement
19 Indication of intermediate value1 (incl. unit)
20 MIN: lowest measured value during continuous
measurement
21 Indication of intermediate value2 (incl. unit)
22 Indication of intermediate value3 (incl. unit)
23 Measurement value display (incl. unit)
24 Indirect measurement (two auxiliary measurements)
Indirect measurement (three auxiliary measurements)
Indirect measurement of partial heights (three
auxiliary measurements)
Levelled distance/height and angle measurement
25 Area measurement
Volume measurement
26 Digital spirit level indication
27 Front reference point
Rear reference point
28 Laser active indication

6 EN
laser distance measuring device TD120
Technical data
Parameter Value
Model TD120
Weight 110g
Dimensions (Hx Wx D) 115 x 48x 29mm
Measuring range of laser 0.05 to 120m/ 0.2 to 394ft°*
Measuring units m/in/ft/ft+in
Accuracy ±2mm
Measuring range resolution 1 mm
Tilt sensor measuring range max. 90°
Tilt sensor accuracy ±0.5°
Number of recordings
logged in the history
99
Operating temperature -10°C to 50°C (14°F to 122°F)
Storage temperature -20°C to 60°C (-4°F to 140°F)
Relative humidity max. 75%
Laser output < 1 mW (635nm)
Laser class II
Type of protection IP40
Device switch-off After approx. 3minutes of non-
use
Automatic switch-off of the
laser
After approx. 30seconds of non-
use
Power supply 2x 1.5V battery (typeAAA)
* A target plate is recommended for distances >30m.
Scope of delivery
• 1x Device TD120
• 2x 1.5V battery AAA
• 1 x Quick guide
Transport and storage
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Transport
When transporting the device, ensure dry conditions and and
protect the device from external influences e.g. by using a
suitable bag.
Storage
When the device is not being used, observe the following
storage conditions:
• dry and protected from frost and heat
• protected from dust and direct sunlight
• the storage temperature complies with the values specified
in the Technical data
• Batteries are removed from the device
Operation
Inserting the batteries
Note
Make sure that the surface of the device is dry and the
device is switched off.
1. Open the battery compartment cover(6).
2. Insert two batteries of typeAAA (1.5V, included in the
scope of delivery) into the battery compartment with
correct polarity (+/-).
3. Refit the battery compartment cover onto the device.

EN 7
laser distance measuring device TD120
Switch-on
1. Briefly press the MEASbutton(7).
ðThe display will be switched on and the device ready for
operation.
Basic settings
Aborting the measurement and deleting the display
1. Press the Clear/OFFbutton(9) to delete the last action or
the current measuring value.
Adjusting the reference point
The device always measures the total distance starting at the
reference point. This means that if the rear end of the device is
set as reference point, the length of the device will be part of
the measurement. By default the reference point is set to the
rear of the device. You can, however, also relocate the
reference point to the front part of the device. Please proceed as
follows:
1. Press the Unit/ button(10) to relocate the reference point
to the front end of the device.
ðAn acoustic signal is emitted each time the reference
point is relocated. In addition, the reference point
display(27) indicates the selected reference point.
When switching the device off and then on again, the reference
point will automatically be relocated to the rear end of the
device.
Changing the units
Press and hold the Unit/ button(10) to switch between the
units for the measured values. You can set the following units
one after the other:
Distance Area Volume
0.000 m 0.000 m20.000 m3
0.0in 0.000 ft20.000 ft3
0 1/16in 0.000 ft20.000 ft3
0,000 ft 0.000 ft20.000 ft3
0´00´´1/16 0.000 ft20.000 ft3
Calling up a measured value in the device history
The device automatically saves the last 99measured values.
The saved measured values can be called up as follows:
1. Briefly press the Storage button(8) to call up the history.
ðThe number of the current measured value is indicated
on the Historydisplay(14).
2. Press the+/-button(11) to go to the next measured value.
3. Press theStoragebutton(8) to return to the previous
measured value.
4. Simultaneously press and hold the Storagebutton(8) and
the Clear/Offbutton(9) to clear the entire data memory.
5. Press the Clear/Offbutton(9) to return to the last
measuring mode.
Aligning the device
The device can be aligned horizontally and vertically using the
spirit levels.
In addition, the digital spirit level indication(26) indicates
whether the device is positioned horizontally on a surface or is
tilted forwards or backwards.
The current inclination angle starting from the horizontal
position is indicated on the Inclination angle indication(13).
Carrying out measurements
Warning of laser radiation
Laser class2, Pmax.: <1mW, λ: 400-700nm,
EN60825-1:2014
Do not look directly into the laser beam or the opening
from which it emerges.
Never point the laser beam at people, animals or
reflective surfaces. Even brief eye contact can lead to
eye damage.
Examining the laser output aperture by use of optical
instruments (e.g. magnifying glass, magnifiers and the
like) entails the risk of eye damage.
When working with a laser of class2, observe the
national regulations on wearing eye protection.
The device comes with the following measuring modes:
• Single distance measurement:
- you can add or subtract measured values
- you can perform a non-stop measurement with MAX- /
MIN-/current value
• Area measurement
• Volume measurement
• Indirect height measurement
• Twofold indirect height measurement
• Indirect measurement of a partial height
• Levelled distance/height and angle measurements

8 EN
laser distance measuring device TD120
Carrying out single distance measurement
1. Press the MEAS button(7) to switch the device on.
2. Point the laser at the target area.
3. Briefly press the MEASbutton(7) again to perform a
distance measurement.
ðThe measured value is displayed on the measurement
value display(23).
a
Adding/ subtracting measured values
1. Carry out a single distance measurement.
2. Press the+/-button(11) once to add the next measured
value to the previous one.
Press the+/−button(11) twice to subtract the next
measured value from the previous one.
3. Press theMEASbutton(7) to determine the next measured
value.
ðThe overall result will be indicated on the measurement
value display(23). The individual measured values are
indicated on the intermediate value display2 (21)
and3(22).
Performing a non-stop/ min and max measurement
With this measurement method the device can be moved with
the measured value being recalculated roughly
every0.5seconds. You can use the non-stop measurement
function with MAX/MIN/current value display for performing the
following measurements, for example:
•MAX value: measuring a diagonal
•MIN value: determining the perpendicular length to a wall/
floor area
•Actual value: marking a defined value for a distance (e.g.
a measurement from a ground plan)
A=1,531m
1. Press and hold the MEASbutton(7).
ðA recurring acoustic signal is emitted.
ðThe maximum and minimum values are indicated on the
intermediate value displays1(19) and2(21).
ðThe current measured value is displayed on the
measurement value display(23).
2. Depending on the desired measurement, move the device
slowly back and forth or up and down (e.g. in the corner of
a room).

EN 9
laser distance measuring device TD120
3. Briefly press the MEASbutton(7) to terminate the
continuous measurement.
ðThe maximum, minimum and last measured value are
indicated on the display.
4. Press and hold the MEASbutton(7) to return to the single
measurement mode.
Note
The continuous measurement is automatically
terminated after 500individual values have been
measured.
Performing an area measurement
1. Repeatedly press the FUNCbutton(12) until the symbol for
the area measurement( ,25) appears on the display.
ðThe respective distance to be measured flashes next to
the symbol (25).
2. Briefly press the MEASbutton(7) to carry out the first
measurement (e.g.length).
ðThe first measured value will be indicated on the
intermediate value display1(19).
3. Briefly press the MEASbutton(7) again to carry out the
second measurement (e.g.width).
ðThe second measured value is displayed on the
intermediate value display2(21).
ðUpon pressing the MEASbutton(7) for the second time
the device independently calculates the area and
displays this value in the measured value
indication(23).
a
b
Performing a volume measurement
1. Repeatedly press the FUNCbutton(12) until the symbol for
the volume measurement( ,25) appears on the display.
ðThe respective distance to be measured flashes next to
the symbol (25).
2. Briefly press the MEASbutton(7) to carry out the first
measurement (e.g.length).
ðThe first measured value will be indicated on the
intermediate value display1(19).
3. Briefly press the MEASbutton(7) again to carry out the
second measurement (e.g.width).
ðThe second measured value is displayed on the
intermediate value display2(21).
4. Briefly press the MEASbutton(7) again to carry out the
third measurement (e.g.height).
ðThe third measured value is displayed on the
intermediate value display3(22).
ðUpon pressing the MEASbutton(7) for the third time the
device independently calculates the volume and displays
this value in the measured value indication(23).
c
b
a

10 EN
laser distance measuring device TD120
In addition to the measured individual lengths, the device can
also calculate the ceiling area and total area of all walls as well
as the perimeter of the floor:
1. Carry out a volume measurement.
2. Press and hold the FUNCbutton(12).
ðThe ceiling area(X) will be indicated on the intermediate
value display1(19).
ðThe total area of all walls(Y) is displayed on the
intermediate value display2(21).
ðThe perimeter of the floor(z) is displayed on the
intermediate value display3(22).
ðThe volume will be indicated on the measurement value
display(12).
X
z
Y
3. Press and hold the FUNCbutton(12) to return to the single
distance display.
Indirect height measurement (Pythagoras)
Info
The position at the two rear edges must not be
changed during the measurements!
Using this method the length of an unknown straight-line
segment can be determined via the Pythagorean Theorem. This
method is suitable for e.g. height measurements.
The measurement result is calculated by determining the
distancesa andb.
a
c
b
c
b
a=?
A
B
a
b
1. Repeatedly press the FUNCbutton(12) until the symbol for
the indirect measurement( ,24) appears on the display.
ðThe respective distance to be measured flashes next to
the symbol (24).
2. First, aim the device at the highest point(A) and briefly
press the MEASbutton(7) once to perform a
measurement. Make sure to hold the device as steady as
possible and place it level on the ground with the rear
edge.
ðThe first measured value will be indicated on the
intermediate value display1(19).
3. Using the spirit level, align the device horizontally to the
lower measuring point(B) and briefly press the
MEASbutton(7) once to measure the horizontal distance.
ðThe second measured value is displayed on the
intermediate value display2(21).
ðThe line segment to be determined is displayed as result in
the measurement value display(23).
Twofold indirect height measurement
Info
The position at the two rear edges must not be
changed during the measurements!
This method is suitable for e.g. height measurements when you
are not at the same height as the base point.
The measurement result is calculated by determining the
distances a, b andc.
a=?
c
b
d
a
c
d
b
A
B
b
a
C
c
1. Repeatedly press the FUNCbutton(12) until the symbol for
the twofold indirect measurement( ,24) appears on the
display.
ðThe respective distance to be measured flashes next to
the symbol (24).
2. First, aim the device at the highest point(A) and briefly
press the MEASbutton(7) once to perform a
measurement. In doing so, hold the device as steady as
possible.
ðThe first measured value will be indicated on the
intermediate value display1(19).
3. Using the spirit level, align the device horizontally(B) and
briefly press the MEASbutton(7) once to measure the
horizontal distance.
ðThe second measured value is displayed on the
intermediate value display2(21).

EN 11
laser distance measuring device TD120
4. Align the device to the deepest point(C) and briefly press
the MEASbutton(7) once to perform a measurement.
ðThe third measured value is displayed on the
intermediate value display3(22).
ðThe line segment to be determined is displayed as result in
the measurement value display(23).
Indirect measurement of a partial height
Info
The position at the two rear edges must not be
changed during the measurements!
This method is suitable for measuring partial heights (e.g. storey
heights, window heights, etc.).
The measurement result is calculated by determining the
distances a, b andc.
a=?
a
c
d
b
d
c
b
A
B
C
a
c
b
1. Repeatedly press the FUNCbutton(12) until the symbol for
the measurement of a partial height( ,24) appears on
the display.
ðThe respective distance to be measured flashes next to
the symbol (24).
2. First, aim the device at the upper point(A) of the partial
height to be measured and briefly press
theMEASbutton(7) once to perform a measurement. In
doing so, hold the device as steady as possible.
ðThe first measured value will be indicated on the
intermediate value display1(19).
3. Now aim the device at the lowest point(B) of the partial
height to be measured and briefly press
theMEASbutton(7) once to perform a measurement.
ðThe second measured value is displayed on the
intermediate value display2(21).
4. Using the spirit level, align the device horizontally to the
lower measuring point(C) and briefly press the
MEASbutton(7) once to measure the horizontal distance.
ðThe third measured value is displayed on the
intermediate value display3(22).
ðThe partial height to be determined is displayed as result in
the measurement value display(23).
Levelled distance/height and angle measurements
With the levelled distance/height and angle measurement you
can, for example, determine the length and inclination of a roof
slope from the ground. To do so, please proceed as follows:
1. Repeatedly press the FUNCbutton(12) until the symbol for
the levelled distance/height and angle measurement
( ,24) appears on the display.
ðThe respective distance to be measured flashes next to
the symbol (24).
ðThe angle will be indicated on the intermediate value
display1(19).
2. First, aim the device at the upper point(A) of the partial
height to be measured and briefly press
theMEASbutton(7) to perform the measurement. The
device automatically calculates the distances a, b, and c.
ðThe length of line segmenta is displayed on the
intermediate value display2(21).
ðThe length of line segmentb is displayed on the
intermediate value display3(22).
ðThe length of line segmentc is indicated on the
intermediate value display(23).
C=?
a
b
A
Switch-off
1. Press and hold the Clear/Offbutton(9) for 3seconds.
ðThe device is switched off.

12 EN
laser distance measuring device TD120
Maintenance and repair
Battery change
A battery change is required when the battery status indication
flashes or the device can no longer be switched on (see chapter
Inserting the batteries).
A battery change is required when the battery status indication
displays an empty battery symbol or when the device can no
longer be switched on (see chapter Inserting the battery).
Cleaning
Clean the device with a soft, damp and lint-free cloth. Make
sure that no moisture enters the housing. Do not use any
sprays, solvents, alcohol-based cleaning agents or abrasive
cleaners, but only clean water to moisten the cloth.
Repair
Do not modify the device or install any spare parts. For repairs
or device testing, contact the manufacturer.
Errors and faults
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
The fault indication(15) lights up if the distance cannot be
determined correctly. Repeat the measurement on another
surface with better reflective properties. If necessary, use a
target plate.
In addition, the following fault indications may appear in the
lower measurement value display:
Display Cause Remedy
204 Calculation error Repeat the measurement. Pay
attention to the measurement
sequence and position of the
device.
208 The reception of the
reflected signal is too
weak; the measuring
time is too long; the
distance to the target
is >50m.
Repeat measurement on
another surface with better
reflective properties or use a
target plate.
252 The temperature is
too high.
Allow the device to cool down.
Observe the permissible
operating temperature
according to the Technical data
chapter.
253 The temperature is
too low.
Heat up the device. Observe
the permissible operating
temperature according to the
Technical data chapter.
255 Hardware fault Repeatedly switch the device
on and off. If the indication
continues to appear, please
contact the Trotec customer
service.

EN 13
laser distance measuring device TD120
Disposal
Always dispose of packing materials in an environmentally
friendly manner and in accordance with the applicable local
disposal regulations.
The icon with the crossed-out waste bin on waste
electrical or electronic equipment is taken from Directive
2012/19/EU. It states that this device must not be disposed of
with the household waste at the end of its life. You will find
collection points for free return of waste electrical and electronic
equipment in your vicinity. The addresses can be obtained from
your municipality or local administration. You can also find out
about other return options that apply for many EU countries on
the website https://hub.trotec.com/?id=45090. Otherwise,
please contact an official recycling centre for electronic and
electrical equipment authorised for your country.
The separate collection of waste electrical and electronic
equipment aims to enable the re-use, recycling and other forms
of recovery of waste equipment as well as to prevent negative
effects for the environment and human health caused by the
disposal of hazardous substances potentially contained in the
equipment.
In the European Union, batteries and accumulators must
not be treated as domestic waste, but must be disposed of
professionally in accordance with Directive 2006/66/EC of the
European Parliament and of the Council of 6September2006
on batteries and accumulators. Please dispose of batteries and
accumulators according to the relevant legal requirements.
Only for United Kingdom
According to Waste Electrical and Electronic Equipment
Regulations 2013 (SI2013/3113) (as amended) and the Waste
Batteries and Accumulators Regulations 2009 (SI2009/890) (as
amended), devices that are no longer usable must be collected
separately and disposed of in an environmentally friendly
manner.

Trotec GmbH
Grebbener Str. 7
D-52525 Heinsberg
[phone]
[phone]
[email protected]
www.trotec.com