Primes Cube M User manual

Revision 03/2018 EN
35,0(6
Cube M
Operating Manual
Translation of the Original Instructions

35,0(6
Cube M
3
Revision 03/2018 EN
Content
1 Basic Safety Instructions 5
2 Symbol Explanation 7
3 Conditions at the Installation Site 8
4 Characteristics of Battery-Powered Measuring Devices 8
5 System Description 9
5.1 Measuring Principles.............................................................................. 9
6 Transportation 9
7 Installation/Removal 10
7.1 Prepare installation............................................................................... 10
7.2 Mounting Position ................................................................................ 11
7.2.1 Align the Cube M with the Alignment Tool............................... 12
7.3 Install the Cube M................................................................................ 13
7.4 Remove the Cube M............................................................................ 13
8 Connections 14
8.1 External Safety Circuit (Laser Interlock)................................................. 14
8.2 Micro-USB-Socket............................................................................... 15
8.3 Bluetooth............................................................................................. 15
9 Control Elements 16
9.1 On/Off Button ...................................................................................... 16
10 Display 16
10.1 Status Messages ................................................................................. 17
10.2 Warning Message ................................................................................ 17
10.3 Battery Capacity .................................................................................. 17

35,0(6
Cube M
4
Revision 03/2018 EN
11 Measuring and Displaying with the Cube M 18
11.1 Safety Instructions ............................................................................... 18
11.2 Laser Parameter Setting ...................................................................... 19
11.2.1 Setting the Laser Rise Time.................................................... 19
11.2.2 Measurement with Pulsed Lasers........................................... 20
11.2.3 Minimum Energy per Single Measurement.............................. 20
11.3 Single Measurement ............................................................................ 21
11.4 Serial Measurement ............................................................................. 22
11.5 Measurement Storage ......................................................................... 23
12 Measurement and Evaluation via Software 24
12.1 Measurement and Evaluation with the LaserDiagnosticsSoftware LDS. 24
12.2 Measurement and Evaluation with the PRIMES Cube App ................... 24
12.3 Functions and Settings via the Software............................................... 24
13 Maintenance and Service 25
13.1 Exchanging the Protective Window...................................................... 25
13.1.1 Safety Instructions.................................................................. 25
14 Measures for the Product Disposal 28
15 Technical Data 29
16 Dimensions 31
17 Declaration of Conformity 32
18 Appendix 33
18.1 Measuring Range as a Function of the Absorber Temperature.............. 33

35,0(6
Cube M
5
Revision 03/2018 EN
1 Basic Safety Instructions
Intended Use
The Cube M is used to measure power in the beam path of lasers. Please observe and
adhere to the specifications and limit values given in Chapter15, „Technical Data“, on
Page29. Other forms of usage are improper. To ensure safe operation, the device
must only be operated according to the terms stipulated by the manufacturer.
Using the device for unspecified use is strictly prohibited by the manufacturer. By usage
other than intended the device can be damaged or destroyed. This poses an increased
health hazard up to fatal injuries. When operating the device, it must be ensured that
there are no potential hazards to human health.
The device itself does not emit any laser radiation. During the measurement, however,
the laser beam is guided onto the device which causes stray radiation (laser class 4).
That is why the applying safety regulations are to be observed and necessary protective
measures need to be taken.
Observing applicable safety regulations
Please observe valid national and international safety regulations as stipulated in ISO/
CEN/TR standards as well as in the IEC-60825-1 regulation, in ANSIZ136 “Laser
Safety Standards” and ANSI Z 136.1 “Safe Use of Lasers”, published by the American
National Standards Institute, and additional publications, such as the “Laser Safety
Basics”, the “LIA Laser Safety Guide”, the “Guide for the Selection of Laser Eye Protec-
tion” and the “Laser Safety Bulletin”, published by the Laser Institute of America, as well
as the “Guide of Control of Laser Hazards” by ACGIH.
Taking Necessary Safety Measures
If there are people present within the danger zone of visible or invisible laser radiation,
for example near laser systems that are only partly covered, open beam guidance sys-
tems or laser processing areas, the following safety measures need to be taken:
• Please wear safety goggles adapted to the laser wave length and operating
mode of the laser beam source in use.
• Depending on the laser source, it may be necessary to wear suitable protective
clothing or protective gloves.
• Please protect yourself from direct laser radiation, scattered radiation as well as
from beams generated from laser radiation (e.g. by using appropriate shielding
walls or by weakening the radiation to a harmless level).

35,0(6
Cube M
6
Revision 03/2018 EN
• Please use beam guidance- or beam absorber elements which do not emit any
hazardous particles as soon as they get in contact with laser radiation and which
resist the beam sufficiently.
• Please install safety switches and/or emergency safety mechanisms which enable
an immediate closure of the laser shutter.
• Please ensure a stable mounting of the device in order to prevent a relative motion
of the device to the beam axis of the laser and thus to reduce the risk of stray
radiation.
Employing Qualified Personnel
All users must have been trained in the installation and operation of the device and they
need to have a basic knowledge about the work with high power lasers, beam guidance
systems as well as focussing units.
Conversions, modifications and repairs
The device must not be modified, neither constructionally nor safety-related, without
our explicit permission. The device must not be opened e.g. to carry out unauthorized
repairs. Modifications of any kind will result in the exclusion of our liability for resulting
damages.
Liability Disclaimer
The manufacturer and the distributor of the measuring devices do not claim liability
for damages or injuries of any kind resulting from an improper use or handling of the
devices or the associated software. Neither the manufacturer nor the distributor can be
held liable by the buyer or the user for damages to people, material or financial losses
due to a direct or indirect use of the measuring devices.

35,0(6
Cube M
7
Revision 03/2018 EN
2 Symbol Explanation
The following symbols and signal words indicate possible residual risks:
DANGER
means that death or serious physical injuries will occur if necessary safety
precautions are not taken.
WARNING
means that death or serious physical injuries can occur if necessary safety
precautions are not taken.
CAUTION
means that a slight physical injury can occur if necessary safety precautions
are not taken.
NOTICE
means that property damages can occur if necessary safety precautions are
not taken.
The device itself or the packing bears the following symbols to indicate require-
ments and possible dangers:
Read and observe the operating instructions and safety guidelines before the
start-up!

35,0(6
Cube M
8
Revision 03/2018 EN
Further symbols that are not safety-related:
Here you can find useful information and helpful hints.
With the CE marking the manufacturer guarantees that his product is in confor-
mity with the EC guidelines.
Call for observing (visual feedback from the device or the software).
X Call for action
3 Conditions at the Installation Site
The device must only be operated in a dry and dust free atmosphere. High levels of
humidity can lead to condensation, which can affect the operation of the device. This
also applies to high environmental dust exposure.
In industrial environments erroneous measurements may be triggered by strong elec-
tromagnetic fields. In this case we recommend EMC compliant shielding of the interlock
cable.
4 Characteristics of Battery-Powered Measuring Devices
The device is equipped with a lithium-ion battery. Note that this battery may ignite or
explode at high temperatures.
To operate the device, the ambient conditions must therefore be observed and adhered
to in accordance with the specifications in Chapter15, „Technical Data“, on Page29.
The lithium-ion battery is permanently installed in the device. Do not open the device
to replace the lithium-ion battery, as damage to the battery may result in the escape of
harmful substances.

35,0(6
Cube M
9
Revision 03/2018 EN
5 System Description
Laser beam
Display
On/Off Button
Protective
window
Protective win-
dow holder
Laser Interlock
Micro-USB-Socket
Fig. 5.1: System description of the Cube M
5.1 Measuring Principles
The absorber of the calorimetric measurement system is irradiated by a laser for a short
period of time. The temperature difference of the absorber between start and finish
of the laser pulse is measured. From the increase in temperature, the microprocessor
based electronics is able to calculate laser power to a high degree of accuracy.
6 Transportation
NOTICE
Damaging/Destruction of the device
Hard impacts or dropping the device can damage the optical and electri-
cal components.
X Only transport the device in its original packaging.

35,0(6
Cube M
10
Revision 03/2018 EN
7 Installation/Removal
7.1 Prepare installation
1. Turn off the laser source.
2. Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that they
cannot be set in motion unintentionally.
DANGER
Serious eye or skin injury due to laser radiation
If the stability of the device is not guaranteed or the inlet aperture is not
centered and mounted perpendicular to the laser beam, increased scat-
tered or directed reflection of the laser beam will occur.
X Align the device as described in Chapter 7.2 on Page 11.
X Install the device according to Chapter 7.3 on Page 13 in a way that
ensures, that the device can not shift or fall.
CAUTION
Cutting hazard
Contamination and fingerprints on the protective window can lead to da-
mage or shattering or splintering of the protective window during measu-
ring operation.
X Do not touch the protective window.
X Only operate the device with a clean protective window.

35,0(6
Cube M
11
Revision 03/2018 EN
7.2 Mounting Position
The Cube M can be mounted vertically or horizontally. The Cube M must be aligned to
the laser beam. The laser beam must hit the inlet aperture in the middle. Please mind
and adhere to the specifications and limit values given in Chapter15, „Technical Data“,
on Page29.
The Cube M is positioned above the focus (see Fig. 7.1 on Page 11). Please note,
that in this case the laser radiation is convergent and the permissible power density at
the beam entrance must not be exceeded.
To align the Cube M under the laser, a alignment tool is included (see Chapter 7.2.1 on
Page 12).
Focusing Optics
Bottom edge in
focusing plane
Cube M
max. 4 mm
(max. Power Density 250 kW/cm2)
Fig. 7.1: Alignment to the laser beam

35,0(6
Cube M
12
Revision 03/2018 EN
7.2.1 Align the Cube M with the Alignment Tool
Using the alignment tool and a pilot laser beam, you can position the device with the
necessary accuracy (see Fig. 7.2 on Page 12):
1. Put the alignment tool on the inlet aperture.
2. Turn on the pilot laser and align the device:
• If the laser beam hits the little marking in the alignment tool, the device is aligned.
NOTICE
Damaging/Destruction of the alignment tool
The adjustment tool is made of plastic. Exposure with high power fo-
cused laser radiation will destroy the alignment tool.
X Remove the alignment tool before measurement.
Marking
Alignment Tool
Fig. 7.2: Alignment of the Cube M using the alignment tool

35,0(6
Cube M
13
Revision 03/2018 EN
7.3 Install the Cube M
1. Align the device with the laser beam as described in Chapter 7.2 on Page 11
and Fig. 7.1 on Page 11.
2. Install the device with the mounting threads as shown in Fig. 7.3 on Page 13.
3. Ensure a stable installation of the device:
• The device must not be able to move.
4. Connect the interlock connection cable.
5. Remove the alignment tool from the protective window of the device.
M6 x 6
2x
M4 x 8
50
5 5
24.5
Fig. 7.3: Mounting threads in the Cube M housing
7.4 Remove the Cube M
1. Turn off the laser source.
2. Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that they
cannot be set in motion unintentionally.
3. Unscrew the mounting screws from the mounting threads (see Fig. 7.3 on Page
13).
4. Remove the interlock connection cable and remove the device from the laser
system.
5. Apply the alignment tool to prevent contamination of the protective window.

35,0(6
Cube M
14
Revision 03/2018 EN
8 Connections
Laser Interlock
Micro-USB-Socket
Fig. 8.1: Connections
8.1 External Safety Circuit (Laser Interlock)
The external safety circuit protects the measuring device from damages caused by
switching of the laser in case of an error.
If the absorber is still too hot, pin 3 and 4 are connected. If the absorber is ready for
operation, pin 1 and 4 are connected.
NOTICE
Damaging/Destruction of the device
If the safety circuit is not connected, the device can be damaged or de-
stroyed due to overheating.
X When connecting the laser control, please ensure that the laser is turned
off in case of an interruption of the connection.

35,0(6
Cube M
15
Revision 03/2018 EN
Pin diagram interlock plug
(view connector side)
Pin Wire color Function
1
4
3
4 Black Mutual pin
1 Brown Connected with pin 4, when ready for
operation
3 Blue Connected with pin 4, when in inter-
lock mode (absorber too hot)
Tab. 8.1: Pin assignment of the interlock plug
8.2 Micro-USB-Socket
The lithium-ion battery of the device can be charged at the PC by means of the micro-
USB-socket. A suitable cable is included in the scope of delivery.
When using the optional LaserDiagnosticsSoftware LDS, the device communicates with
the LDS via the micro-USB socket.
You will find the PRIMES USB-driver for all USB-capable devices on the
PRIMES website at: https://www.primes.de/en/support/downloads/software.html.
8.3 Bluetooth
A class 1 Bluetooth interface was integrated in the Cube M. This enables a wireless
connection with the PC, tablet or the smart phone. When connected to a PC with a
class 1 Bluetooth stick, the range under free space conditions is approx. 250 m. After
switching on the device, the Bluetooth connection is permanently active.
The Cube M can be controlled entirely via the Bluetooth connection, and it is also pos-
sible to transmit the measuring values. When the Bluetooth connection is activated, the
USB interface is deactivated.
When using the PRIMES Cube App (not included in delivery), the device communicates
with the app via Bluetooth. The PRIMES Cube App is available in the Google Play Store/
Tools.

35,0(6
Cube M
16
Revision 03/2018 EN
9 Control Elements
9.1 On/Off Button
The on/off button have several functions:
Keystroke Function
5seconds Turn on/Turn off
2seconds Show measuring values
Repeated pushing for 2 seconds Turn over measuring value display
Tab. 9.1: On/Off button
10 Display
Laser power in Watt
Absorber temperature
Battery capacity
Status message
Bluetooth connection
aktive/inaktive
Fig. 10.1: Display

35,0(6
Cube M
17
Revision 03/2018 EN
10.1 Status Messages
Status message Meaning
Waiting for laser beam The device is ready for operation, the laser can be turned on.
Check temp. The temperature gradient (change in the absorber temperature/time)
is checked. Please wait until the message disappears. Thereafter, the
device is ready to measure again.
Thermalize The thermalization time allows for a uniform temperature distribution
in the absorber. Afterwards, the temperature is measured.
Finished The measurement is completed.
Tab. 10.1: Status messages
10.2 Warning Message
Warning message Reason
Interlock open The absorber temperature has exceeded 100°C. In order to protect
the device, the safety circuit is open.
Tab. 10.2: Warning message
This warning message does not imply an error. The message is automatically
reset as soon as the absorber temperature is below 100 °C again. Likewise,
the safety circuit is then closed again.
10.3 Battery Capacity
The capacity of the rechargeable lithium-ion battery is displayed in percentage. The
accuracy of this display is subject to various factors (such as, for example, the tempe-
rature, the battery condition, etc.). We therefore recommend charging the battery when
20% are displayed. If the battery is fully discharged, the charging can take between
12 and 14 hours. Please note that the charging process can only be carried out in the
temperature range from 0 °C to + 45 °C to protect the battery.
With a battery capacity of 100%, the device has an operating time of approx. 6hours
(equivalent to approx. 100measurements). When using all power saving functions (see
Tab. 12.1 on Page 24) approx. 15 hours.

35,0(6
Cube M
18
Revision 03/2018 EN
11 Measuring and Displaying with the Cube M
11.1 Safety Instructions
DANGER
Severe eye or skin injury due to laser radiation
During the measurement the laser beam is guided on the device, which
causes scattered radiation (laser class 4).
X Wear laser goggles that are adapted to the laser wavelength and opera-
ting mode of the laser beam source used.
X Wear suitable protective clothing and protective gloves.
X Protect yourself from laser radiation by separating protective devices
(e.g. by using appropriate shielding).
CAUTION
Cutting hazard
Contamination and fingerprints on the protective window can lead to da-
mage or shattering or splintering of the protective window during measu-
ring operation.
X Do not touch the protective window.
X Regularly check the condition of the protective window and exchange it
in case of pollution (see Chapter13.1, „Exchanging the Protective Win-
dow“, on Page25).
X Only operate the device with a clean protective window.
ACHTUNG
Damaging/Destruction of the device
The maximum admissible energy per laser pulse is 3000 J. If this limit
value is exceeded, the device can be destroyed.
X Please observe the limit values and dependencies specified in Chap-
ter15, „Technical Data“, on Page29 und Chapter18, „Appendix“, on
Page33 before the measurement.

35,0(6
Cube M
19
Revision 03/2018 EN
11.2 Laser Parameter Setting
11.2.1 Setting the Laser Rise Time
The applicable measurement time is between 0.1 s and 2.0 s, which has to be trans-
ferred to the laser controller as pulse length. The maximum laser rise time for the power
measurement is < 100 μs. This limit has to be adhered to in order to avoid incorrect
results of the power measurement.
Some laser beam sources are factory set with power ramps of up to a few 100 ms to
switch on the laser beam. To achieve the correct power values the shortest possible rise
time (< 100 μs) has to be set.
PMax
PMeas
t
tp
t0
P
100µs
Fig. 11.1: Laser rise time > 100µs
PMax ≙PMeas
t
tp
t0
P
100µs
Fig. 11.2: Laser rise time < 100µs

35,0(6
Cube M
20
Revision 03/2018 EN
11.2.2 Measurement with Pulsed Lasers
When it comes to pulsed laser radiation a correct exposure time measurement up to a
pulse frequency of 1 kHz and a duty cycle of 50 % is possible.
In case of on/off times shorter than 500 μs a correct exposure time measurement is not
possible. However, the irradiated energy is still measured correctly.
11.2.3 Minimum Energy per Single Measurement
For a high measurement accuracy, we recommend an energy input of 400J per measu-
rement.
Example: With a laser power of 2kW and an irradiation time of 200ms, 400 J are
absorbed.
E = P · t = 2000W · 0.2s = 400J
In this case, further measurements can be carried out. Please observe, before carrying
out further measurements the temperature limits for the absorber given in Tab. 11.1 on
Page 22.