35,0(6Original Instructions

Cube
Cube A with advanced absorber
LaserDiagnosticsSoftware LDS
Cube App

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IMPORTANT!
READ CAREFULLY BEFORE USE.
KEEP FOR FUTURE USE.

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Table of contents
1

Basic safety notes

82

Icons and conventions

10

3

About this operating manual

124Device description

13

5

4.1

Functional description........................................................................... 13

4.2

Measuring principle............................................................................... 13

4.3

Functions of the On/Off button.............................................................. 14

4.4

Optical display...................................................................................... 14
4.4.1

Status messages..................................................................... 14

4.4.2

Warning message................................................................... 15

4.5

Scope of delivery and optional accessories........................................... 15

4.6

Important notes on the lithium-ion battery............................................. 15
4.6.1

Charging the lithium-ion battery............................................... 16

4.6.2

Storing the device with a permanently installed lithium-ion
battery..................................................................................... 16

4.6.3

Dangers to health and the environment in the event of damage
to the lithium-ion battery.......................................................... 16

4.6.4

Charge status of the lithium-ion battery................................... 16

Transport and storage

17

5.1

Warning messages............................................................................... 17

5.2

Shipping the device with permanently installed battery.......................... 17

6

Install LaserDiagnosticsSoftware LDS

18

7

Mounting

19

7.1

Conditions at the installation site........................................................... 19

7.2

Installation in the laser system............................................................... 19
7.2.1

4

Prepare mounting.................................................................... 19
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7.3

8

7.2.3

Align the device....................................................................... 19

7.2.4

Mount the device.................................................................... 21

Removal from the laser system............................................................. 22

23

8.1

Overview of connections....................................................................... 23

8.2

Micro-USB port..................................................................................... 23

8.4

10

Possible mounting positions.................................................... 19

Connections

8.3

9

7.2.2

8.2.1

PRIMES USB driver................................................................. 23

8.2.2

Install the USB driver manually................................................ 24

Bluetooth® ........................................................................................... 25
8.3.1

Recommended Bluetooth® dongle and Bluetooth®
specifications.......................................................................... 25

8.3.2

Activate Bluetooth® on the PC (Windows® 10)......................... 25

8.3.3

Connect device to PC via Bluetooth® (Windows® 10)............... 25

Safety interlock..................................................................................... 26

Laser parameter setting

28

9.1

Setting the laser rise time...................................................................... 28

9.2

Maximum permissible power density.................................................... 29

9.3

Minimum and maximum energy input per measurement....................... 30

9.4

Waiting times until the next measurement in serial measurements......... 31

9.5

Measurement with pulsed lasers........................................................... 32

Measure33

10.1

Warning messages............................................................................... 33

10.2

Measuring with the Cube...................................................................... 35

10.3

10.2.1

Start measurement.................................................................. 35

10.2.2

Display of measurement results............................................... 37

Measuring with the optional LaserDiagnosticsSoftware LDS................. 38
10.3.1

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Open toolbench Cube Measurement....................................... 40

10.3.3 Settings in the device control................................................... 41
10.3.4 Start measurement.................................................................. 45

10.4

11

12

10.3.5

Measuring results display........................................................ 46

10.3.6

Delete measurements from the memory of the Cube............... 51

Measuring with the optional Cube App................................................. 51

Troubleshooting

52

11.1

Messages in the LaserDiagnosticsSoftware LDS during measurement.. 52

11.2

Connection failure with the LDS............................................................ 54

11.3

Other errors.......................................................................................... 54

Maintenance and service

57

12.1

Maintenance intervals........................................................................... 57

12.2

Cleaning............................................................................................... 57

12.3

12.2.1

Cleaning the device surface..................................................... 57

12.2.2

Cleaning the protective window............................................... 57

Exchanging the protective window on the device.................................. 58
12.3.1

Warning messages.................................................................. 59

12.3.2

Exchanging the protective window.......................................... 60

13

Measures for the product disposal

61

14

Declaration of conformity

62

15

Technical data

64

16

Dimensions

67

17

Appendix69

6

A

Diagrams for determining the max. laser power.................................... 69

B

GNU GPL license notice....................................................................... 70

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PRIMES - the company
PRIMES is a manufacturer of measuring devices which are used to analyze laser
beams. These devices are employed for the diagnostics of high-power lasers ranging from CO2-, fiber- and solid-state lasers to diode lasers. A wavelength range from
infrared through to near UV is covered, offering a wide variety of measuring devices todetermine the following beam parameters:••••

Laser power
Beam dimensions and position of an unfocused beam
Beam dimensions and position of a focused beam
Beam quality factor M²

Development, production and calibration of the measuring devices is performed at
PRIMES. This guarantees optimum quality, excellent service, and a short reaction time,
providing the basis for us to meet all of our customers’ requirements quickly and reliably.

PRIMES GmbH
Max-Planck-Str. 264319 Pfungstadt
GermanyTel +49 6157 9878-0
info@primes.dewww.primes.de

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Basic safety notes

Intended use
The device has been designed exclusively for measurements in the beam of high-power
lasers.
Use for any other purpose is considered as not intended and is strictly prohibited.
Furthermore, intended use requires that you observe all information, instructions, safety
notes and warning messages in this operating manual. The specifications given in chapter 15 „Technical data“ on page 64 apply. Any given limit values must be complied
with.
If not used as intended, the device or the system in which the device is installed can bedamaged or destroyed. In addition, there is an increased risk to health and life. Only use
the device in such a way that there is no risk of injury.
This operating manual is an integral part of the device and must be kept in the immediate vicinity of the place of use, accessible to personnel at all times.
Every person who is responsible for the installation, start-up or operation of the device
must have read and understood the operating manual and, in particular, the safety
instructions.
If you still have questions after reading this operating manual, please contact PRIMES or
your supplier for your own safety.
Observing applicable safety regulations
Observe the safety-relevant laws, guidelines, standards and regulations in the current
editions published by the state, standardization organizations, professional associations,etc. In particular, observe the regulations on laser safety and comply with their requirements.
Necessary safety measures
The device measures direct laser radiation, but does not emit any radiation itself. However, during the measurement the laser beam is directed at the device. This produces
scattered or directed reflection of the laser beam (laser class 4). The reflected beam isusually not visible.

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Protect yourself from direct and reflected laser radiation while working with the device
by taking the following measures:
•
•
•
•
•

•
•
•

Never leave the device unattended when taking measurements.
Wear safety goggles adapted to the power, power density, laser wavelength andoperating mode of the laser beam source in use.
Wear suitable protective clothing or protective gloves if necessary.
If possible, also protect yourself from direct laser radiation and scattered radiationby using separating protective devices that block or attenuate the radiation.
If the device is moved from its aligned position, increased scattered or directedreflection of the laser beam occurs during measuring operation. Mount the devicein such a way that it cannot be moved unintentionally, i.e. by bumping or pullingthe cables
Connect the laser control’s safety interlock to the device. Check that the safety
interlock will switch off the laser properly in case of error.
Install safety switches or emergency safety mechanisms that allow the laser to be
switched off immediately.
Use suitable beam guidance and beam absorber elements which do not emit any
hazardous substances when irradiated.

Employing qualified personnel
The device may only be operated by qualified personnel. The qualified personnel musthave been instructed in the installation and operation of the device and must have abasic understanding of working with high-power lasers, beam guiding systems andfocusing units.
Conversions and modifications
The device may not be modified in terms of design or safety without the explicit consent
of the manufacturer. The same applies to unauthorized opening, dismantling and repair.
The removal of covers is only permitted within the scope of the intended use.
Liability disclaimer
Manufacturer and distributor exclude any liability for damages and injuries which are
direct or indirect consequences of using the device not as intended or modifying thedevice or the associated software without authorization.

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Icons and conventions

Warning messages
The following icons and signal words indicate possible residual risks in the form of warnings:

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.
Product safety labels
The following icons are used on the device itself to indicate imperatives and possible
dangers:
Read and understand the operating manual before using the device!

Labeling according to WEEE directive:
The device must not be disposed of with household waste, but in a separate
WEEE collection in an environmentally friendly way.

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Further icons and conventions in this operating manual
Here you will find useful information and helpful tips.
Indicates a single instruction.
If several of these instructions appear one below the other, the order in which
they are executed is irrelevant or they represent alternative courses of action.

1.
2.
...

A numbered list identifies a sequence of instructions that must be executed in
the specified order.

Indicates the result of an action to explain processes that take place in the
background.
Indicates an observation prompt to draw attention to visible feedback from thedevice or the software.
Observation prompts make it easier to check whether an instruction was executed successfully. Often they also guide to the next instruction.
Points to a control element that is to be pressed/clicked.

Points to an element described in the text (for example an input field).

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About this operating manualThis operating manual describes the Cube with advanced absorber.
Devices with an advanced absorbers are marked with Cube A on the identification plate.
Devices with a standard absorbers are marked with Cube on the identification
plate. For an earlier version of the operating manual with standard absorber,contact us by e-mail: support@primes.de

This manual describes the installation and operation of the Cube A and performing
measurements with the Cube A, the optional Cube App or the optional LaserDiagnosticsSoftware LDS version 1.4 or higher. In this operating manual, the abbreviations Cubeand LDS are used.
With the Cube App for mobile devices with Android™ you can operate and evaluate thedevice via a smartphone/tablet. The Cube App is available for free in Google Play-Store/Apps.
For measurement operation with a PC, the optional LaserDiagnosticsSoftware LDS
must be installed on the PC. PRIMES will be happy to provide you with a current download link. For this purpose, contact your sales partner or send an e-mail to:support@primes.de
The software description includes a brief introduction on using the device for measurements. For a detailed description of the software installation, file management andevaluation of the measurement data, please refer to the separate instructions for theLaserDiagnosticsSoftware LDS.
This operating manual describes the software version valid at the time of printing. Since the LDS is subject to continuous development, the supplied data
medium may have a newer version number.

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4

Device description

4.1

Functional description

The device is used to measure laser power. The laser beam passes through the protective window and hits the absorber and a photodiode. The absorber and the photodiodeare protected from contamination by the protective window. The display shows themeasured laser power and further information on the status of the device.
Laser beam
Protective window

Display

Protective window
mount
Safety interlock
connection

On/Off button

Fig. 4.1:

4.2

Micro-USB port

Functional description

Measuring principle

The device offers a fast, passively cooled power measurement according to the calorimetric measuring principle.
The absorber of the measuring device is briefly irradiated with the laser beam. The irradiated energy is determined by the temperature rise of the absorber.
The photodiode simultaneously determines the laser ontime. The high-frequency sampling rate of the photodiode enables single pulse detection for pulses not shorter than
50 μs.
Thus, in addition to the average power, the peak power can be calculated. In the second step, the actual laser power is calculated from the irradiated energy divided by thelaser ontime.

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Functions of the On/Off button

The On/Off button has several functions:
Keystroke

Function

Short press

Switch on

5 seconds

Switch off

2 seconds

Show measuring values

Press again for 2 seconds

Switch to next window

Tab. 4.1:

4.4

Functions of the On/Off button

Optical display
Laser power in watt
Charge status

Status/warning message
Fig. 4.2:

Optical display

4.4.1

Status messages

Absorber temperature
Bluetooth connection
active/inactive

Status message

Meaning

Waiting for laser beam

The device is ready for operation, the laser can be switched on.

Check temp.

The temperature gradient (change in the absorber temperature/time)
is checked. Please wait until the message disappears.

Thermalize

The thermalization time allows a uniform temperature distribution in
the absorber. Afterwards, the temperature is measured.

Finished

The measurement is completed.

Tab. 4.2:

14

Status messages

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4.4.2

Warning message

Warning message

ReasonSafety interlock open

The absorber temperature has exceeded 100 °C. In order to protect
the device, the safety interlock was triggered.

Tab. 4.3:

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. The safety
interlock is then also automatically switched back to the permissible operating
status.
Detailed information on triggering the safety interlock is described in chapter
8.4 on page 26.

4.5

Scope of delivery and optional accessories

The following parts are within the scope of delivery:•
Cube•
Cable USB 2.0, 1.8 m•
Safety interlock cable with one-sided connector M5, 2 m(Co. Binder, order number: 77 3450 0000 40003-0200)•
Operating manual or quick start guide Cube•
Transport and storage bag
The following accessories are available:•
LaserDiagnosticsSoftware LDS•
Cube App

4.6

Important notes on the lithium-ion battery

The device is equipped with a permanently installed rechargeable battery. Be aware that
this battery may ignite at high temperatures. For operation, storage and shipping, referto the information according to chapter 15 „Technical data“ on page 64.

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4.6.1

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Charging the lithium-ion battery

Charge the battery completely before using the device for the first time. The first complete charge on the PC requires approx. 3 hours. Only use the supplied USB cable tocharge the battery. Recharge the battery when the charge level reaches 20 %. Do not
charge the rechargeable battery unattended, e.g. overnight. Do not expose the device
to direct sunlight.
4.6.2

Storing the device with a permanently installed lithium-ion battery

Store the device in a cool, dry place. Keep a minimum distance of 3 m from combustible materials. Do not expose the device to direct sunlight. Please charge the battery atleast every three months.
4.6.3

Dangers to health and the environment in the event of damage to thelithium-ion battery

In general, contact with leaking battery components may pose a hazard to health andthe environment:•
When the battery is damaged, fluids (electrolytes) may leak out. These are flammable, contact with the eyes or skin may cause irritation.
•
Vapors may irritate the eyes, respiratory organs, and skin.
•Fire or intense heat may cause violent bursting. Heating or fire may release toxic
gases. Burning produces irritating smoke.
4.6.4

Charge status of the lithium-ion battery

The charge status of the battery is displayed in %. The accuracy of the display depends
on various factors (e.g. temperature, age of the battery, etc.).
The battery has a capacity of 1 000 mAh. The battery can be charged with a max.
charging current of 1.3 A via the supplied USB cable. At a charging current of 1.0 A,
the charging time is approx. 1 hour. At a charging current of 0.5 A, the charging time isapprox. 2.5 hours.
At 100 % charge status, the possible operating time is approx. 6 hours (equivalent toapprox. 100 measurements). When using all power saving functions (see section „Power saving functions“ in chapter 10.3.3 „Settings in the device control“ on page 41)
approx. 15 hours.

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5Transport and storage

5.1

Warning messages

NOTICE
Damaging/Destruction of the device
Hard impacts can damage the absorber within the device.

5.2

X

Handle the device carefully when transporting or installing it.

X

To avoid contamination, cover the inlet aperture with a suitable protective
adhesive foil.

Shipping the device with permanently installed battery

The device is equipped with a permanently installed lithium-ion battery (hereinafterreferred to as battery). A removal of the battery by the end user is not intended for thisproduct.
In case of shipment the device is a dangerous good. Due to the permanently built-in
battery it is classified as “lithium ion batteries contained in equipment”.
X
Please observe the requirements for shipping according to the valid regulations.
Particularly in case of a damaged battery, special regulations must be observed:
A damaged battery can cause fire! These batteries must be sorted out, checked and, if
necessary, repacked by qualified personal!
X
If you need more information on how to safely remove the battery, please contact
us at: support@primes.deBattery details for shipping:
Cell/battery typ: Lithium Ion
Cell or battery: Battery
LC or Wh rating: 3.7 Wh
Cell/battery weight: 20 g
UN-Classification: UN 3481: Lithium ion batteries contained in equipment

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Install LaserDiagnosticsSoftware LDS
For measurement operation with a PC, the optional LaserDiagnosticsSoftware
LDS must be installed on the PC. PRIMES will be happy to provide you witha link to download the current version. Please contact your sales partner orcontact us by e-mail: support@primes.de1.

Please ensure:

System requirements:••

System requirements are met.
You have administrator rights.

2.

Close all programs on your PC.

•
•
•
•

3.

Download the LDS via thedownload link.

4.

Double-click the LDS_Setup exe
file to start the installation.

5.

Follow the instructions on thescreen.

x

If no other Iocation is specified,then the main program LDS.exe
will be copied to the directory
C:\Programs\Primes\LaserDiagnosticsSoftware.

18•Intel Pentium Core i3 or better
Windows 10 (64-bit version)
At least 4 GB RAM; 8 GB RAM recommended
Display resolution: Full HD (1 920 x 1 080) at
100 % scaling
A USB port or Bluetooth for connecting themeasuring device

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7

Mounting

7.1

Conditions at the installation site

•
•
•
•

The device must not be operated in a condensing atmosphere.
The ambient air must be free of gases and aerosols that interfere with the laser
radiation (e.g. organic solvents, cigarette smoke, sulfur hexafluoride).
Protect the device from splashes of water and dust.
Operate the device in closed rooms only.

7.2

Installation in the laser system

7.2.1

Prepare mounting

1.
2.
7.2.2

Switch off the laser beam.
Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that theycannot be set in motion unintentionally.
Possible mounting positions

The device can be mounted vertically or horizontally.
7.2.3

Align the device

The device must be aligned to the laser beam. The laser beam must hit the centre of
the inlet aperture. Please mind and adhere to the specifications and limit values given inchapter 15 „Technical data“ on page 64.
Use of the device with divergent laser radiation on the absorber
Normally, the device is positioned underneath the focal plane of the beam path for
power measurement (see Fig. 7.1 on page 20).
Use of the device with convergent laser radiation on the absorber
If this is not possible, the device can be positioned above the focal plane. In this case,observe that the laser radiation is convergent and that the maximum permissible power
density on the absorber (approx. 30 mm under the protective window) is not exceeded.

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Please observe:••••

the max. beam diameter of 30 mm on the absorberthe max. permissible power density on the absorber as a function of thebeam diameterthe max. tolerance to the centered beam incidence of ± 2.0 mm
the max. angle of incidence of ± 5° perpendicular to the inlet aperture

Laser beam

65 mm

30 mm

Focal plane

Max. beam diameter on
the absorber 30 mm
Fig. 7.1:

20

Alignment to the laser beam

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7.2.4

Mount the device

DANGER
Serious eye or skin injury due to laser radiation
If the device is moved from its aligned position, increased scattered or
directed reflection of the laser beam can occur during measuring operation(laser class 4).
X

Mount the device in such a way that it cannot be moved by an unintended
push or a pull on the cables.

NOTICE
Damaging/Destruction of the device
Contamination and fingerprints on the protective window can cause damage
or cracking respectively splintering of the protective window during measuring
operation.

1.

2.
3.

X

Do not touch the protective window with bare hands.

X

Regularly check the condition of the protective window. The protective window can be cleaned or replaced in case of heavy, non-removable contamination (see chapter 12 „Maintenance and service“ on page 57).

X

Only operate the device with a clean protective window.

Mount the device on the mounting threads according to Fig. 7.2 on page 22.
The total length of the screws depends on the dimensions of the customer’s
bracket.
Ensure a stable installation of the device. The device must not be able to move.
If a safety circuit is provided, connect the safety interlock connection cable.

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CubeSide view left

Rear view<1>Fig. 7.2:<1>

Mounting threads in the housing (dimensions in mm)
Schutzglas-Abdeckung
Schutzglas-Abdeckung

7.3
1.
2.
3.
4.
5.
6.

Removal from the laser system

Switch off the laser beam.
Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that theycannot be set in motion unintentionally.
Unscrew the mounting screws (see Fig. 7.2 on page 22).
Disconnect electrical connections.
Remove the device from the laser system.
Gehäusestecker 3 poligGeh
To avoid contamination, cover the inlet aperture with a suitable protective adheInterlockInte
sive foil.

Kabelbuchse 3 poligKabelbuchse
M5
3 polig M5InterlockInterlock

Zeichnungs-Nr. mit Zeichnungs-Nr.
aktueller Revision
mitan
aktueller
vorgegebener
RevisionStelle
an vorgegebeanbringen

PRIMESPRIMES

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8Connections

8.1

Overview of connections

Bluetooth®

Safety interlock
connection

Micro-USB port

Fig. 8.1:

8.2

Overview of connections

Micro-USB port

You can charge the battery of the device on the PC via the micro USB port. Only use
the supplied USB cable to charge the battery.
When using the optional LaserDiagnosticsSoftware LDS (not within delivery), the device
communicates with the LDS via the micro-USB port or Bluetooth®.
Note that a USB interface without additional interference suppression measures is not EMC-compliant. Therefore, in industrial environments with strong
sources of interference, connection interruptions and data transmission disturbances may occur.
8.2.1

PRIMES USB driver

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

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8.2.2

Cube

Install the USB driver manually

The driver installation requires administrator rights.
1.
2.
3.
4.
5.

Download the USB driver from the PRIMES website.
Save the driver to a data carrier.
Connect the data carrier to a PC.
Double-click to start the driver installation software.
Follow the instructions on the screen.

Fig. 8.2:

6.

24

Windows® menu for USB driver installation

Click Finish to complete the installation.

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8.3

Bluetooth®

A class 1 Bluetooth® interface is integrated in the device. This enables a wireless connection with the PC, tablet or smartphone. When connected to a PC with a class 1
Bluetooth® dongle, the range under free space conditions is approx. 100 m.
After switching on the device, the Bluetooth® connection is permanently active. Whenthe Bluetooth® connection is activated, the USB interface is deactivated. However,simultaneous charging of the battery via the USB cable is possible.
When using the optional Cube App for mobile devices with Android™ (not within thescope of delivery), the device communicates with the app via Bluetooth®. The Cube
App is available for free in Google Play-Store/Apps.
8.3.1

Recommended Bluetooth® dongle and Bluetooth® specifications

Recommended Bluetooth® dongle
LOGILINK BT0037 Bluetooth 4.0 Micro USB Dongle (Class 1)
Bluetooth® specifications
Bluetooth® version: 2.1+EDR
Transmission power: Class 1 (<= 20 dBm)
Bluetooth® Profile: Generic Access Profile (GAP), Serial Port Profile (SPP)
8.3.2
1.
2.
3.
8.3.3
1.
2.
3.
4.
5.
x
6.

Activate Bluetooth® on the PC (Windows® 10)
Open the Bluetooth® menu via Start > Settings > Devices.
Check under Bluetooth- and devices if your PC supports Bluetooth®.
If Bluetooth® is supported, a Bluetooth button is displayed.
Set the Bluetooth switch to the ON position.
Connect device to PC via Bluetooth® (Windows® 10)
Press the On/Off buttonon the Cube.
Open the Bluetooth® menu via Start > Settings > Devices.
Click the + sign.
Under Add Device, click Bluetooth.
The Cube is displayed with its serial number (see identification plate).
Click the Cube.
Confirm the prompt to pair the Cube.
The Cube will be connected.
Connect the Cube to the LDS according to chapter 10.3.1 on page 38.

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Safety interlock

NOTICE
Damaging/Destruction of the device
If the safety interlock is not connected, the device can be damaged or destroyed due to overheating.
X

Connect the safety interlock to the device.

The use of the safety interlock protects the device from damage in many situations.
Nevertheless, depending on the parameters of the laser beam to be measured, damage
to the absorber may occur. Please observe the specifications and limit values given inchapter 15 „Technical data“ on page 64.
During irradiation, the temperature of the absorber can rise significantly above 100 °C
for a short time because the heat has not yet been distributed evenly in the absorber. To
avoid triggering the safety interlock during irradiation in this case, the safety interlock isonly triggered at a temperature above 200 °C when irradiation is in progress.
Therefore, when a running irradiation is detected, the interlock threshold is temporarily
increased from 100 °C to 200 °C. After the end of the irradiation, the interlock thresholdis reduced again to 100 °C.
If the temperature of the absorber is above 100 °C after the measurement is completed,the safety interlock is triggered to protect the absorber. This prevents the device frombeing irradiated again.
Pin 3 and pin 4 are connected when a safety interlock is triggered. After the absorberhas cooled down, pin 1 and pin 4 of the safety interlock are connected.
Please observe the information on minimum and maximum energy input per measurement according to chapter 9.3 on page 30.
A suitable safety interlock cable with one-sided connector M5, 2 m (Co. Binder, ordernumber: 77 3450 0000 40003-0200) is within the scope of delivery.

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Safety interlock connection (view connection on device)
4
1Tab. 8.1:

Pin
3

Wirecolor

Function

4Black

Common pin

1

Brown

Connected with pin 4, when ready for operation

3

Blue

Connected with pin 4, when in safety interlock
mode (absorber too hot)

Pin assignment of safety interlock connection and wire colors of connection cable

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Laser parameter setting

For correct measurements and to protect the device from damage, the following parameters must be observed and adhered to.

9.1

Setting the laser rise time

The applicable irradiation time is between 0.1 s and 2.0 s, which has to be transferredto the laser controller as pulse duration/burst duration. The maximum laser rise time forpower measurement must not exceed 1 % of the irradiation time. This limit has to beadhered 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 toswitch on the laser beam. To achieve a high measuring accuracy the shortest possible
rise time has to be set.
P

PMax
PMeas

t0

Fig. 9.1:> 1 % of the irradiation timetp

Laser rise time > 1 % of the irradiation timeP

PMax ≙ PMeas

t0
Fig. 9.2:

28t< 1 % of the irradiation timetptLaser rise time < 1 % of the irradiation time

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9.2

Maximum permissible power density

To avoid damage to the absorber, the maximum permissible power density at the absorber must not be exceeded. The permissible power densities vary depending on the
beam diameter.
A list of the permitted power densities depending on the beam diameter is given inchapter 15 „Technical data“ on page 64.
The power density in kW/cm² is calculated according to the formula:

Formula 1: Calculation of the power density

To determine the maximum laser power, the result is weighted with a safety factor of 2.
The safety factor compensates the ratio of maximum to average power density of a
Gaussian beam (far field). The maximum permissible laser power in kW depending on
the beam radius is calculated according to the formula:

Formula 2: Calculation of the permissible laser power depending on the beam radius

Example: With a beam diameter of 3 – 1.5 mm, the device can absorb a maximum
power density of 10 kW/cm². For a beam diameter of 3 mm (beam radius 0.15 cm), themaximum permissible laser power is calculated as follows:
P in kW = 10 kW/cm² · π · 0.15 cm · 0.15 cm ·1
= 0.353 kW = 353 W
2Formula 3: Example calculation

For a quick determination of the maximum permissible laser power as a function of the irradiation time or the beam diameter, two diagrams are included inchapter 17 „Appendix“ on page 69.

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Minimum and maximum energy input per measurement

The measured temperature rise in the absorber is decisive for an accurate and reproducible measurement. Regardless of the starting temperature, we recommend an
energy input of approx. 300 J per measurement.
Example: At 1 kW laser power the recommended pulse duration is 300 ms.
E = P · t = 1 000 W · 0.3 s = 300 J
Fig. 9.3 on page 30 shows the permissible energy input for a measurement as afunction of the absorber temperature.

Permissible measuring energy in J

3 000

Max. energy input

1 000
25 °C Ambient temperature
Min. energy input
100

10

The measuring range varies with the ambient
temperature. Especially when measuring small energies (< 200 J), the absorber temperature should
be close to the ambient temperature in order toachieve the highest possible measuring accuracy.
25

35

45

55

65

75

Absorber temperature in °C
Fig. 9.3:

Measuring range as a function of the absorber temperature

The minimum energy input indicates the lower limit values with which measurements
can still be performed within the specified accuracy. The maximum energy application
value specifies the limit at which the absorber reaches its permissible limit temperature.
The energy, e.g. for multiple measurements (serial measurements) can be distributed
across the range shown in green.
If the absorber temperature is higher than 70 °C, no further measurement should be
performed. In this case, please wait until the absorber temperature has fallen below
50 °C (depending on the selected energy input). Please take the limit values from
Fig. 9.3 on page 30 and Tab. 9.1 on page 31.
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Absorber temperature in °C

Min. energy input in J

Max. energy input in J

20

50

3 000

25

50

2 800

30

50

2 600

35

50

2 400

40

60

2 200

45

90

2 100

50

140

1 900

55

200

1 700

60

290

1 500

65

390

1 300

70

520

1 100

Tab. 9.1:

9.4

Absorber temperature with the recommended minimum and permissible maximum
energy input (ambient temperature 20 °C)

Waiting times until the next measurement in serial measurements

Please note that at high measuring frequencies the measuring accuracy may be limited.
For serial measurements within the specified accuracy, the following waiting times arerecommended before the next measurement.
Energy input in J

Waiting time in s

200

50

400

100

600

150

800

200

1 000

250

Tab. 9.2:

Waiting times until the next measurement in serial measurements

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Measurement with pulsed lasers

When using pulsed laser radiation a correct exposure time measurement is possible up
to a pulse frequency of 10 kHz and a duty cycle of 50 %. In case of ontimes/offtimes
shorter than 50 μs a correct exposure time measurement is not possible.
With pulsed lasers, the device recognizes the number of pulses n and the number ofpulse pauses n-1. The last pulse pause toff is not measured for physical reasons. This
leads to an increased display of the average power with a low number of pulses. The
average power is corrected on the basis of the corrected burst duration (see Fig. 9.4 on
page 32).
For cw lasers and lasers with one pulse, the average power corresponds to the maximum power of one pulse.
When measuring pulsed lasers, the technical specification according to chapter 15„Technical data“ on page 64 must be observed.
Measurements outside the specification may result in an incorrect calculation of thenumber of pulses (pulses). This affects the calculated max. power of a pulse (Pk Pow).
But not on the calculated average laser power (Av Pow) and energy (Energy).
Laser power P in W
Pulse 1
ton

Pulse 2

Pulse 3

Pulse 4

Pulse 5toff

toff
Uncorrected burst duration

Corrected burst duration for the calculation of the average laser power
Time tFig. 9.4:

32

Uncorrected and corrected burst duration with pulsed lasers

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10

Measure10.1

Warning messages

DANGER
Serious eye or skin injury due to laser radiation
If the device is moved from its aligned position, increased scattered or
directed reflection of the laser beam can occur during measuring operation(laser class 4).
X

Mount the device in such a way that it cannot be moved by an unintended
push or a pull on the cables.

DANGER
Serious eye or skin injury due to laser radiation
During the measurement the laser beam is guided on the device, whichcauses scattered or directed reflection of the laser beam (laser class 4).
The reflected beam is usually not visible.
X

Please wear safety goggles adapted to the power, power density, laser wave
length and operating mode of the laser beam source in use.

X

Wear suitable protective clothing and protective gloves.

X

Protect yourself from laser radiation by separating protective devices (e.g. byusing appropriate shielding).

NOTICE
Damaging/Destruction of the device
The maximum permissible energy per laser pulse depends on various variables, including the absorber temperature.
X

Please observe the limit values and dependencies specified in chapter 15„Technical data“ on page 64 before the measurement.

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NOTICE
Damaging/Destruction of the device
Contamination and fingerprints on the protective window can cause damage
or cracking respectively splintering of the protective window during measuring
operation.

34

X

Do not touch the protective window with bare hands.

X

Regularly check the condition of the protective window. The protective window can be cleaned or replaced in case of heavy, non-removable contamination (see chapter 12 „Maintenance and service“ on page 57).

X

Only operate the device with a clean protective window.

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10.2

Measuring with the Cube

Please read chapter 9 „Laser parameter setting“ on page 28 first.
10.2.1

Start measurement

Measurements with the Cube are to be performed exclusively with a stationary laser
beam.
1.

Observe the warning messages in chapter 10.1 on page 33.

2.

Press the On/Off button.
The start screen displays:••

The firmware version.
The set, calibrated wavelength.
The calibrated wavelengths of
1 070 nm (within delivery) or 515 nm(optional) can be set in the Cube using
the LaserDiagnosticsSoftware LDS.
After approx. 5 seconds, the device isready for operation.

3.

Switch on the laser.

x

The measurement is started automatically when the laser is switched on.

For a high measurement accuracy, we recommend an energy input of 300 J per measurement (see chapter 9.3 on page 30).

The thermalization is displayed by meansof a progress bar (duration approx.
10 seconds).
A measuring cycle (measure, thermalize,
send data) takes approx. 15 seconds.
The device is then ready for a newmeasurement.

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The screen displays the following
measurement values:•••

Laser power in W 1)
Absorber temperature in °C
Pulse duration/burst duration in ms 1)

1)

For cw lasers, the measured power of the laser
is displayed in W (Power) and the pulse duration in ms (Time).
For pulsed lasers, the measured average power of the laser is displayed in W (Power) overthe burst duration (corrected) in ms (Time).

4.

To access the following screen, press the
On/Off button for approx. 2 seconds.
Further pulse parameters are displayed:

•
•
•
•
•
•
•

Total pulse duration in ms (Ontime)
Total pulse pause in ms (Offtime)
Uncorrected burst duration in ms(uBurst)Number of pulses (Pulses)
Max. Power of a pulse in W (Pk Pow)
Average power in W (Av Pow)
Energy in J

Further information on measuring withpulsed lasers can be found in chapter 9.5 on
page 32.

By default, the device switches off automatically after approx. 10 minutes. The poweroff time of the device can be set via the LDS or the Cube App (see section „Power saving functions“ in chapter 10.3.3 „Settings in the device control“ on page 41).
You can also switch off the device manually by keeping the On/Off button pressed forapprox. 5 seconds.

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10.2.2

Display of measurement results

The last 14 measurement values are displayed directly on the screen. The latest
measurement is always displayed with the counter “Nr. 1”.
1.

To access the following screen, press the
On/Off button for approx. 2 seconds.
The measured average laser power 1)(Power) and pulse duration/burst duration 1) (Time) are displayed.

2.

1)

Press the On/Off button again for 2 seconds to have the remaining measurements (no. 8-14) displayed.

For cw lasers, the measured power of the laser
is displayed in W (Power) and the pulse duration in ms (Time).
For pulsed lasers, the measured average power of the laser is displayed in W (Power) overthe burst duration (corrected) in ms (Time).

You can read out the last 30 measurements with the optional Android™ PRIMES Cube
App for mobile devices or the optional LDS.

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Measuring with the optional LaserDiagnosticsSoftware LDS

Please read chapter 9 „Laser parameter setting“ on page 28 first.
This chapter describes measurements with the LDS. For a detailed description of the software installation, file management and evaluation of the measured data, please refer to theseparate operating manual “LDS”.
10.3.1Connect/disconnect the device with the LDS

Switch on the device and connect it to the LDS
1.

Observe the warning messages in chapter 10.1 on page 33.

2.

Press the On/Off button

3.

Connect the USB cable to the Micro-USB port on the device and with the PC
orConnect the device to the PC via Bluetooth® (see chapter 8.3.3 on page 25).

4.

Start the LDS by double-clicking on the program icon
the desktop icon.

on the device.

in the start menu group or on

The start screen is displayed.
5.

Select the operating mode
Measure.

If the Show start screen option isdisabled or the window Connections
is closed:
X

38

Click the Devices tab and thenthe + Connect to device button.

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The Connections window isdisplayed.
6.

Click on the desired device.

7.

Click the Connect to device
button.

If the device does not appear:
X

Install the USB driver according
to chapter 8.2.2 on page 24.

X

Check according to chapter 8.3.2
on page 25 whether Bluetooth® is available and activatedon your PC.

Disconnect device from the LDS and switch off
1.

Click the Devices tab.

2.

Right-click the device and selectthe Disconnect menu point.

x

The device is disconnected fromthe LDS.

3.

Press the On/Off button
the device for 5 seconds.

x

The device is switched off.

4.

If necessary, disconnect theelectrical connections.

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Open toolbench Cube Measurement

The Cube is established as aconnected device.
X

Click on the connected device.

The corresponding Device
control opens.
The toolbench Cube Measurement is opened.
If the Cube Measurement toolbench
was previously closed, the Openmeasurement toolbench button isdisplayed.
Click this button to open the toolbench again.

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10.3.3

Settings in the device control

Edit the options according to the explanations in the following table.
OptionExplanation

Open measurement
toolbench

If the Cube Measurement toolbench was previously closed, the Openmeasurement toolbench button is displayed.
X

Click the button to reopen the Cube Measurement toolbench.

New measurement

X

Click this button to create a new series in the project tree. The
measurement starts when the laser is switched on.

Wavelength in nm

The Cube can measure the laser power of lasers with the following
wavelengths ranges:
440 – 460 nm / 510 – 540 nm / 800 – 1 100 nm
The calibrated wavelengths of 1 070 nm (within delivery) or 515 nm(optional) can be selected.
For measuring blue lasers PRIMES recommends the useof the optional calibration of 515 nm. This enables bettermeasurement accuracy.

Inert gas mode

1.

Select the wavelength in nm from the drop-down list.

2.

Click the Save settings button.

The inert gas mode is integrated in the Cube from firmware version 5.2. To use the inert gas mode, the optional LDS, version 1.4 orhigher must be installed on the PC.
With the inert gas mode, the possible influence of the thermal
conductivity of the gas used on the measurement process is typicallyreduced by 2/3.
Particular attention was given to the gases helium and argon, whichhave significantly reduced thermal conductivity in relation to air (78 %nitrogen and 21 % oxygen).
X

Set the check mark to enable the option.

Continued on the following page.
Tab. 10.1: Settings in the device control

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OptionCube

Explanation

Inert gas mode(continued)

The inert gas mode is not suitable for using the Cube within
a nitrogen atmosphere. Only use the inert gas mode whenusing the device e.g. in helium or argon.
If the inert gas mode is activated when using the Cube in air,
there may be reduced measurement accuracy in the power
measurement.
The inert gas mode is recalculating the values measured by
the Cube. However, the values are not transferred back to the
Cube.
The display in the LDS will therefore deviate from the conventionally determined measured values in the Cube when theinert gas mode is active.

Trigger level(Laser power)

Setting the trigger level enables the sensitivity of the built-in photodiode to be adjusted:•
The Trigger level Low setting is recommended for measuring low
laser powers and pulsed laser beams.
•
The Trigger level High setting prevents false triggering due toenvironmental influences.
If the Trigger level is set too low, a measurement can be triggered even without a laser beam.
If the Trigger level is set too high, no measurement can betriggered.
X

Set the Trigger level to a higher/lower value.

In the Cube the Trigger level Low (20 W-200 W) is preset.
1.

Select the Trigger level in the drop-down list.

2.

Click the Save settings button.

Tab. 10.1: Settings in the device control

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OptionExplanation

Power saving functions
Continuous background lighting

Turn off lighting
after (in s)

Interlock

Autom. ready formeasurement

Power off device
after

The option switches the background lighting of the display in the Cubeon or off. The setting is only possible with deselected option Turn off
lighting after (in s).
1.

Set the check mark to enable the option.

2.

Click the Save settings button.

The option switches the background lighting of the display in the Cube
after the set time off. The setting is only possible with deselected option Continuous background lighting.
1.

Enter the time in seconds.

2.

Click the Save settings button.

The option switches the safety interlock on or off. For safety reasons,switching off the safety interlock is not recommended.
1.

Set the check mark to switch on the safety interlock.

2.

Click the Save settings button.

The option automatically puts the device back into ready for measurement after each measurement. If the check mark has been removed,
the device must be set to ready for measurement again after eachmeasurement by briefly pressing the On/Off button.
1.

Set the check mark to enable the option.

2.

Click the Save settings button.

The option is used to set the time in minutes after which the device
switches off automatically. By default, the device switches off automatically after approx. 10 minutes.
When a charging cable is connected, the device cannot beswitched off automatically. The device is then permanently
ready for measurement.
1.

Select the time in minutes from the drop-down list.

2.

Click the Save settings button.

Tab. 10.1: Settings in the device control

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OptionExplanation

Save settings

By pressing the button, the selected settings are transferred to the
Cube.

Load measurements

By pressing the button, the last 30 measurements stored in the device
are read out from the Cube memory.

Clear history

By pressing the button, the measurements stored in the Cube aredeleted.

Tab. 10.1: Settings in the device control

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10.3.4

Start measurement

Measurements with the Cube are to be performed exclusively with a stationary laser
beam.
The measurement in the Cube starts
automatically when the laser isswitched on. The Start display field istherefore not active.
A measuring cycle (measure, thermalize, send data) takes approx.
15 seconds. The device is then readyfor a new measurement.
To create a new series in the project
tree, press the New measurement
button.
If the setting Autom. ready for measurement is deactivated, briefly press
the On/Off button on the device.
1.

Observe the warning messages
in chapter 10.1 on page 33.

2.

Enter the settings for the Inertgas mode and the Trigger
level in the device control as
described in chapter 10.3.3„Settings in the device control“
on page 41.

3.

Confirm the selection of a Trigger level by clicking the Save
settings button.

4.

Switch on the laser.
The progress of the measurement is indicated in the
Measurement is running andthen Measurement is finisheddisplays.

5.

Switch off the laser.

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Measuring results display

Display the current measurement in the toolbench Cube Measurement
After the measurement is finished, the measurement results are displayed in the open
toolbench Cube measurement (see below).
For all tools, the displayed parameters can be adjusted by clicking the gear symbol

46.

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Display of the measurements stored in the Cube
1.

Press the Load measurements
buttonx

The last 30 measurements
stored in the device are read outof the memory of the Cube.

2.

Switch to the Projects tab.
The uploaded measurements
are displayed in the project tree.

Date, time and order of the displayed measurements:
3.

Move the mouse pointer overthe measurement.
The window displays the date
and time of the upload.
Uploaded measurements are
displayed in a descending order(last/most recent measurement
is referred „measurement 0“).

Evaluate measured values with the
LDS tools:
See section „Evaluate measured
values with the LDS tools“ onpage 49.

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Display of the measurements performed with the LDS
1.

Switch to the Projects tab.
The measurements are displayed in the project tree.

Date, time and order of the displayed measurements:
2.

Move the mouse pointer overthe measurement.
The window displays the date
and time of the measurement.
When measuring with the LDS,
the measurements are displayedwith increasing numbering (last/current measurement has thehighest value).

Evaluate measured values with the
LDS tools:
See section „Evaluate measured
values with the LDS tools“ onpage 49.

When using the inert gas mode:
In the project tree, the used Inert gas
mode is indicated.
X

Move the mouse pointer overthe measurement.
Inert gas mode was used isdisplayed in the window.

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Evaluate measured values with the LDS tools
1.

Click the Power measurement
selection in the drop-down list.
The Graph, Results table andMeasurement value display
tools are displayed.
The Power measurement
tool is not relevant for the Cube.

2.

Open the desired tool and dragand drop the measurementsfrom the project tree into theopened tool.

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For all tools, the displayed parameters can be adjusted by clicking the gear symbol
For example, the rows/columns in the Results table can be swapped.

.

For uploaded measurements from the Cube, the numbering is descending (last/mostrecent measurement is referred „measurement 0“).
When measuring with the LDS, the measurements are displayed with increasing numbering (last/current measurement has the highest value).
The “Help”-function of the LDS can be accessed by clicking on the question markin the toolbar of the tool windows.
For a detailed description of the software installation, file management and evaluation of
the measured data, please refer to the separate operating manual “LDS”.

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10.3.6

Delete measurements from the memory of the Cube

The Cube stores the measurements
in an internal memory.
X

Click the Clear history button.

x

The measurements in the Cubeare deleted.

10.4

Measuring with the optional Cube App

With the Cube App for mobile devices with Android™ you can operate and evaluate thedevice via a smartphone/tablet.
The Cube App is available free of charge in the Google Play Store/Apps. You need avalid Google account. In the search field of the Google Play Store, enter the search term
“Primes cube app”.
A Bluetooth® connection with the device makes it possible to read out and graphicallydisplay the measured values (laser power, pulse duration, and energy per pulse) with themobile end device. The Cube App also shows an overview of the device status (temperature, charge status, status notifications).
In the Cube App you can make additional settings for power saving functions and theautomatic ready for measurement.
Please find detailed information on the operation of the Cube App in the separate operating manual Cube App. These can be found on the PRIMES website at:https://www.primes.de/en/support/downloads/operating-manuals.html

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11

Troubleshooting

11.1

Messages in the LaserDiagnosticsSoftware LDS during measurement

If problems occur during a measurement, the LDS displays them in different categories
and different colors.
Notes
Notes provide assistance in interpreting themeasurement results and are displayed in ablue window.
Use one of the following options:X

Click on the warning triangle in the footer
to display/hide the window.

X

If applicable, click the Next message
button to display more messages of thesame category.

X

Click the Confirm button to remove thedisplayed message.

Warnings
Non-safety-critical problems that influence
the quality of the measurement results, forexample, are displayed in a yellow window.
Use one of the following options:X

Click on the warning triangle in the footer
to display/hide the window.

X

If applicable, click the Next message
button to display more messages of thesame category.

X

Click the Confirm button to remove thedisplayed message.

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Device errors
Device errors that can result in damage of thedevice are displayed in an orange window.
In this case, proceed as follows:1.

Fix the problem.

2.

Click the Confirm button to remove themessage.
The message disappears. If the problem
is not fixed, then the message appears
again shortly afterwards.

3.

Do not proceed with the measurement
until the problem is solved.

Safety critical device errors
Safety-critical problems that can result indamage/destruction of the device are displayed in a red window.
In this case, proceed as follows:1.

Fix the problem immediately.

2.

Click the Confirm button to remove themessage.
The message disappears. If the problem
is not fixed, then the message appears
again shortly afterwards.

3.

Do not proceed with the measurement
until the problem is solved.

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Connection failure with the LDS

Error

Possible cause

Solution

The Bluetooth® connection between thedevice and the LDS
cannot be established.

No Bluetooth® connection is established.

X

Connect the device to the PC according
to chapter 8.3.3 on page 25.

Bluetooth® of the PC
is not activated.

X

Activate Bluetooth® according to chapter
8.3.2 on page 25.

No Bluetooth®
dongle is connectedto the PC.

In chapter 8.3.1 on page 25 you will find arecommendation for a Bluetooth® dongle.

No USB connection
is established.

X

The PRIMES USB
driver was notinstalled.

A driver in the PC is required for a USB connection to the device.

The USB connection
between the device
and the LDS cannot
be established.

X

Connect the USB cable to the MicroUSB port on the device and with the PC.

Install the USB driver according to chapter 8.2.2 on page 24.

Tab. 11.1: Connection failure with the LDS

11.3

Other errors

Error

Possible cause

Solution

A measurement isstarted without thelaser beam switchedon.

The Trigger level is
set too low.

In the Cube the Trigger level Low(20 W-200 W) is preset.

A measurement cannot be triggered.

The Trigger level is
set too high.

1.

Select a higher Trigger level in the dropdown list.

2.

Click the Save settings button.

1.

Select a lower Trigger level in the dropdown list.

2.

Click the Save settings button.

Tab. 11.2: Other errors

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Error

Possible cause

Solution

A pulsed laser beamcannot be measured.

Not enough energy is
put into the absorber.

When using pulsed laser radiation a correct
exposure time measurement is possible up toa pulse frequency of 10 kHz and a duty cycleof 50 %. In case of ontimes/offtimes shorter
than 50 μs a correct exposure time measurement is not possible.

Too many pulses are
displayed.

Additional erroneous
pulses (needle tips
from ns to μs duration).

The measured
ontime is longer
than the set nominal
ontime.

The real pulse does
not correspond toan ideal square wave
signal.

X

Observe the min. ontime/offtime (dutycycle) for pulsed lasers of 50 µs (e.g.
max. 10 kHz at 50 % duty cycle).

X

Select a different Trigger level from thedrop-down list.

Ideal pulse
Real pulse

Trigger level
Nominal ontime
Measured ontime
X

Select a higher Trigger level from thedrop-down list.

Tab. 11.2: Other errors

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Error

Possible cause

Solution

Too little laser power
is displayed.

The beam diameterat the inlet apertureis too large.

X

Align the device according to chapter
7.2.3 on page 19 again.

The laser beam hits
the inlet aperture only
partially.
The laser rise timeexceeds 1 % of theirradiation time.

Detailed information on the laser rise time canbe found in chapter 9.1 on page 28.

The set laser power
does not correspondto the actual emitted
laser power.

When properly aligned and used, the calibrated PRIMES measuring device provides
reliable measured values.

X

Set the shortest possible laser rise time.

X

Increase the set power on the laser.

X

Repeat the power measurement.

Tab. 11.2: Other errors

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12Maintenance and service

12.1

Maintenance intervals

The operator is responsible for determining the maintenance intervals of the measuring
device. PRIMES recommends a maintenance interval of 12 months for inspection andcalibration.
If the device is used sporadically (less than once a day), the maintenance interval can beextended up to 24 months.
Please note that the safety and warning functions of the device must be checked regularly.

12.2

Cleaning

12.2.1

Cleaning the device surface

1.
2.
3.
4.

5.

After a measurement let the device cool down for an adequate period of time.
First clean the device surface with clean and oil-free compressed air.
Close all device openings.
For further cleaning, use a mixture of distilled water and isopropanol in a ratio of
approx. 5:1.
Use lint-free cleaning cloths that do not cause scratches.
If these steps are not sufficient, please contact PRIMES or your PRIMES distributor.

12.2.2
1.
2.
3.
4.

5.
6.

Cleaning the protective window

After a measurement let the device cool down for an adequate period of time.
Dismount the protective window according to chapter 12.3.2 on page 60, sections 1-6.
First clean the protective window with cleaned, oil-free compressed air.
For further cleaning, use isopropanol (observe the manufacturer‘s safety instructions).
The coating of the protective window is particularly sensitive to scratches. Use
cloths suitable for cleaning protective glasses.
Replace the protective window with a new one if the contamination cannot be
removed or if it is damaged.
Mount the protective window according to chapter 12.3.2 on page 60, sections 7-11.

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Exchanging the protective window on the device

The protective window in the beam entrance is a wearing part and can be replaced if
necessary.
The protective window is coated with an anti-reflective coating and has low
reflectance values of less than 1 %. To avoid increased reflection, use only
original PRIMES protective windows.
Protective window diameter 55 mm
Glass thickness		
1.5 mmOrder number		
410-070-024 (1 piece); 410-011-018 (10 pieces)

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12.3.1

Warning messages

DANGER
Serious eye or skin injury due to laser radiation
If the protective window is not correctly positioned, reflections can cause
directional laser radiation.
X

Ensure that the protective window is positioned evenly in the indentation on
the O-ring.

CAUTION
Burns due to hot components
The protective window is hot after a measurement.
X Do not clean or change the protective window directly after a measurement.
X Let the device cool down for an adequate period of time.

NOTICE
Damaging/Destruction of the device
Contamination and fingerprints on the protective window can cause damage
or cracking respectively splintering of the protective window during measuring
operation.
X

Only clean or change the protective window in a dust-free environment.

X

Do not touch the protective window with bare hands.

X

When exchanging the protective window wear suitable gloves.

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1.
2.
3.
4.
5.

6.
7.
8.
9.
10.
11.

Cube

Exchanging the protective window

Observe the warning messages in 12.3.1 on page 59.
Let the device cool down for an adequate period of time.
Put on suitable gloves.
Unscrew the 4 Torx screws M2.5 x 6 mm on the protective window mount.
Place the device as shown in Fig. 12.1 on page 60 and carefully remove theprotective window mount upwards.
Make sure that the inserted O-ring does not fall out of the device.
Remove the protective window from the device.
Check the cleaned or a new protective window for contamination.
Insert the protective window into the device.
Ensure that the inserted O-ring is not out of place.
Place the protective window mount according to Fig. 12.1 on page 60.
Tighten the protective window mount with 4 Torx screws M2.5 x 6 mm.
Check for secure fit of the protective window mount.
The protective window mount must rest flat on the device.

Torx screws
M2.5 x 6 mmProtective window
mountProtective
window

O-ringFig. 12.1: Exchanging the protective window

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13

Measures for the product disposal

As a B2B device, this PRIMES measuring device is subject to the European Waste
Electrical and Electronic Equipment (WEEE) Directive and the corresponding nationallaws. The WEEE directive obliges the operating company to dispose of the device inan environmentally sound manner, not with household waste, but in a separate WEEE
collection.
PRIMES gives you the opportunity to return your PRIMES measuring device for freedisposal within the scope of the Waste of Electrical and Electronic Equipment (WEEE Directive). This service does not include shipping costs. You can send PRIMES measuring
devices to be disposed of within the EU to our address:
PRIMES GmbH
Max-Planck-Str. 264319 Pfungstadt
Germany
If you are located outside the EU, please contact your local PRIMES distributor to discuss the disposal procedure for your PRIMES measuring device.
PRIMES is registered at the german „joint body“ for producers „Stiftung Elektro-Altgeräte Register“ (Stiftung EAR). Our number is: WEEE-reg.-no. DE65549202.
Caution battery included!
Please note that there is a permanently installed lithium-battery in the device.
This must be disposed of in accordance with applicable national and international laws
if the device is not returned to PRIMES.
If you need more information on how to safely remove the battery for final disposal,
please contact us at: info@primes.de

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Declaration of conformity

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Technical data

Measurement parameters

Cube A

Power range

25 – 12 000 W 1)

Wavelength range (see identification plate)

440 – 460 nm, 510 – 540 nm, 800 – 1100 nm

Max. beam diameter on the absorber

30 mm

Max. power density (peak) on
the absorber (approx. 30 mm
underneath the protective
window) at beam diameters> 10 mm

4 kW/cm²

10 – 3 mm

5 kW/cm²

3 – 1.5 mm

10 kW/cm²< 1.5 mm

12 kW/cm²

Irradiation time

0.1 – 2.0 s 1) (depending on laser power)

Min. ontime/offtime (duty cycle)
for pulsed lasers

50 µs(e.g. max. 10 kHz at 50 % duty cycle)

Max. laser rise time

< 1 % of irradiation time

Energy per measurement

50 – 3 000 J

Recommended energy per measurement

300 – 500 J

Total duration until measurement value output< 15 sNominal measurement frequency

300 J: 1 cycle/min
3 000 J: 1 cycle/15 min

1)64

The stated limit values are to be understood in correlation with the permitted maximum energy(E = P ∙ t).

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Device parameters

Cube A

Max. absorber temperature

120 °C

Max. angle of incidence perpendicular to inlet
aperture± 5°

Max. centered tolerance± 2.0 mm

Measurement accuracy at angle of incidence
up to 5° when using calibration 1 070 nm(within delivery)
NIR laser (800 – 1100 nm)
Green laser (510 – 540 nm)
Blue laser (440 – 460 nm)±3%± 3,5 %
±4%

Measurement accuracy at angle of incidence
up to 5° when using calibration 515 nm(optional)
Green laser (510 – 540 nm)
Blue laser (440 – 460 nm)±3%± 3,5 %

Reproducibility±1%

Supply Data
Power supply

Built-in lithium-ion battery

Maximum charging current

1.3 A

Voltage

3.7 V

Capacity

1 000 mAh

Energy3.7 WhWeight of the battery

20 g

Shipment classification

Lithium ion batteries contained in equipment

Temperature range for charging the lithium-ion
battery0 – 45 °C

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Communication
Interfaces

USB/Bluetooth®

Software (optional)

Cube App andLaserDiagnosticsSoftware LDS

Dimensions and Weight

Cube A

Dimensions (LxWxH) (without connectors)

60 x 65 x 65 mm

Weight (approx.)

400 g

Environmental Conditions
Operating temperature range

15 – 40 °C

Storage temperature range

5 – 50 °C

Reference temperature

22 °C

Permissible relative humidity(non-condensing)

10 – 80 %66

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Dimensions
Bottom view

Side view right

Front view

Top view

Dimensions in mm

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CubeSide view left

Rear view<1><1>

Dimensions in mm
Schutzglas-Abdeckung
Schutzglas-Abdeckung

Gehäusestecker 3 polig
GehInterlockInte

Kabelbuchse 3 poligKabelbuchse
M5
3 polig M5InterlockInterlock

Zeichnungs-Nr. mit Zeichnungs-Nr.
aktueller Revision
mitan
aktueller
vorgegebener
RevisionStelle
an vorgegebeanbringen

PRIMESPRIMES

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17

AppendixA

Diagrams for determining the max. laser power

A.1

Max. laser power depending on the irradiation time
14 000
12 000Laser power in W

10 000
8 000
6 000
4 000
2 000
0

Maximum permissible laser power in W

A.2

0

0.1

0.2

0.3
0.4
0.5
0.6
0.7
0.8
Maximum permissible irradiation time in s

0.9

1.0

1.1

Max. laser power depending on the beam diameter
10000
10
000

11000
000

Empfohlene Werte
Recommended
valuesLimitvaluesGrenzwerte

100
100

00

5
5

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10
10

15
20
15
20
Beam diameter in mm

25
25

30
30

35
35

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GNU GPL license notice

The software of this product contains software code that is licensed subject to the GNU
General Public License (GPL) Version 2 or later. The license terms of the GNU GPL Version 2 or later are available on the following websites:•
https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html•
https://www.gnu.org/licenses/licenses.en.html

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PRIMES GmbH
Max-Planck-Str. 264319 Pfungstadt
GermanyTel +49 6157 9878-0
info@primes.dewww.primes.de