Primes PowerMeasuringCassette PMC User manual

PowerMeasuringCassette PMC
PMC-LSK
LaserDiagnosticsSoftware LDS
Revision 00 EN - 12/2021
Original Instructions
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IMPORTANT!
READ CAREFULLY BEFORE USE.
KEEP FOR FUTURE USE.

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Table of contents
1 Basic safety notes 8
2 Symbols and conventions 10
3 About this operating manual 12
4 Device description 13
4.1 Functional description .......................................................................... 13
4.2 Measuring principle.............................................................................. 13
4.3 Scope of delivery and accessories ....................................................... 14
4.4 Functions of the On/ Off button........................................................... 14
4.5 Displays on the device ......................................................................... 14
4.5.1 Status messages.................................................................... 15
4.5.2 Warning message................................................................... 15
4.6 Important notes on the lithium-ion battery ............................................ 15
4.6.1 Charging the lithium-ion battery.............................................. 15
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
5 Transport and storage 17
5.1 Warning messages .............................................................................. 17
5.2 Shipping the device with battery .......................................................... 17
6 Mounting 18
6.1 Conditions at the installation site .......................................................... 18
6.2 Use within the laser processing head ................................................... 18
6.2.1 Installation into the laser processing head............................... 18
6.2.2 Possible mounting positions................................................... 19
6.2.3 Removal from the laser processing head ................................ 19

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6.3 Use as „Stand-Alone“ device ............................................................... 20
6.3.1 Prepare mounting................................................................... 20
6.3.2 Possible mounting positions................................................... 20
6.3.3 Align the device...................................................................... 20
6.3.4 Mount the device.................................................................... 22
6.3.5 Remove the device................................................................. 22
7 Connections 23
7.1 Safety interlock .................................................................................... 23
7.2 Micro-USB port.................................................................................... 24
8 Important information for measuring with the PMC-LSK 26
8.1 Warning messages .............................................................................. 26
8.2 Laser parameter setting ....................................................................... 28
8.2.1 Setting the laser rise time ....................................................... 28
8.2.2 Maximum permissible power.................................................. 29
8.2.3 Minimum and maximum energy input per measurement......... 31
8.3 Waiting times until the next measurement in a measurement series...... 32
8.4 Measurement with pulsed lasers .......................................................... 33
9 Measuring 34
9.1 Measuring with the PowerMeasuringCassette PMC-LSK ..................... 34
9.1.1 Start measurement................................................................. 34
9.1.2 Measuring results display ....................................................... 36
9.2 Measuring with the optional LaserDiagnosticsSoftware LDS ................ 37
9.2.1 Switch on the device and connect it to the LDS ..................... 37
9.2.2 Open toolbench ..................................................................... 39
9.2.3 Settings for power saving functions and automatic
measurement readiness ......................................................... 40
9.2.4 Start measurement................................................................. 41
9.2.5 Measuring results display ....................................................... 42
9.2.6 Delete measured values from the memory of the PMC-LSK .. 45

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9.2.7 Disconnect and switch off the device ..................................... 45
9.2.8 Messages in the LaserDiagnosticsSoftware LDS during
measurement ......................................................................... 46
10 Maintenance and service 47
10.1 Maintenance intervals .......................................................................... 47
10.2 Cleaning .............................................................................................. 48
10.2.1 Cleaning the device surfaces.................................................. 48
10.2.2 Cleaning the protective window.............................................. 48
10.3 Exchanging the protective window on the device................................. 48
10.3.1 Warning messages................................................................. 49
10.3.2 Exchanging the protective window of the PMC-LSK............... 50
11 Measures for the product disposal 51
12 Declaration of conformity 52
13 Technical data 54
14 Dimensions 56
15 Appendix 57
15.1 Max. laser power depending on the irradiation time ............................. 57
15.2 Max. laser power depending on the beam diameter............................. 57
15.3 GNU GPL license notice ...................................................................... 58

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PRIMES - The Company
PRIMES manufactures measuring devices used to analyze laser beams. These devices
are employed for the diagnostics of high-power lasers ranging from CO2lasers 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 to determine 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. 2
64319 Pfungstadt
Germany
Tel [phone]
[email protected]
www.primes.de

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1 Basic safety notes
Intended use
The PowerMeasuringCassette PMC-LSK has been designed exclusively for measure-
ments of high-power lasers. The PMC-LSK is used to measure power of lasers directly
within the laser processing head. Alternatively, the PMC-LSK can also be operated
outside the laser processing head as a „Stand-Alone“ device.
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 chap-
ter13 „Technical data“ on page54 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 be
damaged 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 immedi-
ate 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 require-
ments.
Necessary safety measures
The device measures direct laser radiation, but does not emit any radiation itself. How-
ever, during the measurement the laser beam is directed at the device. This produces
scattered or directed reflection of the laser beam in “Stand-Alone” operation (laser
class4). The reflected beam is usually not visible.

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Protect yourself from direct and reflected laser radiation while working with the device
by taking the following measures:
• If the device is moved from its aligned position in “Stand-Alone” operation,
increased scattered or directed reflection of the laser beam occurs during mea-
suring operation. Mount the device in such a way that it cannot be moved by
unintentional bumping or pulling on the 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.
• Wear safety goggles adapted to the power, power density, laser wavelength and
operating 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 radiation
by using separating protective devices that block or attenuate the radiation.
Employing qualified personnel
The device may only be operated by qualified personnel. The qualified personnel must
have been instructed in the installation and operation of the device and must have a
basic understanding of working with high-power lasers, beam guiding systems and
focusing 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 unauthorised 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 the
device or the associated software without authorization.

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2 Symbols and conventions
Warning messages
The following symbols 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 symbols are used on the device itself to indicate imperatives and possible
dangers:
Read and understand the operating manual before using the device!

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Further symbols and conventions in this operating manual
Here you can find useful information and helpful tips.
Indicates a single instruction.
If several such instructions appear one below the other, then the order of
their execution is irrelevant or they are alternative procedures.
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
the device 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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3 About this operating manual
This manual describes the installation and operation of the PowerMeasuringCassette
PMC-LSK and how to perform measurements with the optional LaserDiagnosticsSoft-
ware LDS1.1.2.
The software description includes a brief introduction on using the device for measure-
ments. For a detailed description of the software installation, file management and
evaluation of the measurement data, please refer to the separate instructions for the
LaserDiagnosticsSoftware LDS.
This operating manual describes the software version valid at the time of
printing. Since the operating software is subject to continuous further devel-
opment, it is possible that a higher version will be available.
If you have questions, please let us know the software version you are using. The soft-
ware version can be found under the following menu item: Help > About LaserDiag-
nosticsSoftware.

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4 Device description
4.1 Functional description
The PMC-LSK is used for power measurement of lasers directly within the laser pro-
cessing head. Alternatively, the PMC-LSK can also be operated outside the laser pro-
cessing head as a „Stand-Alone“ device. As a “Stand-Alone” device, the PMC-LSK is
positioned below the beam focus in the beam path. If this is not possible, the PMC-LSK
can also be positioned above the focus.
The laser beam passes through the protective window and hits the absorber. The
display shows the measured laser power and further information on the status of the
device.
On/ Off button
Cutout for
locking latch Safety interlock
connection
Display
Protective window
Micro-USB port
Fig. 4.1: Device description
4.2 Measuring principle
The device measures the laser power according to the calorimetric principle. The
absorber of the device is irradiated with the laser for a short period of time. The tem-
perature of the absorber is measured at the beginning and end of the irradiation. Based
on the temperature rise, the irradiation time and the thermal properties of the absorber,
the microprocessor-based electronics are able to calculate the laser power with high
accuracy.

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4.3 Scope of delivery and accessories
The following parts are included in the scope of delivery of the PowerMeasuringCasette
PMC-LSK:
• PowerMeasuringCasette PMC-LSK
• Cable USB 2.0, 1.8m
• Safety interlock cable with connector on one side M5, 2m
• Operating manual PowerMeasuringCasette PMC-LSK
• Transport and storage case
The following accessories are available for the PowerMeasuringCasette PMC-LSK:
• LaserDiagnosticsSoftware LDS
• Operating manual LaserDiagnosticsSoftware LDS
4.4 Functions of the On/ Off button
The on/ off button has several functions:
Keystroke Function
Short press Turn on
5seconds Turn off
2seconds Show measuring values
Press again for 2 seconds Turn over measuring value display
Tab. 4.1: Functions of the On/ Off button
4.5 Displays on the device
Absorber temperature
Laser power in Watt
Status/ warning message
Charge status
Fig. 4.2: Displays on the device

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4.5.1 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.
Thermalize The thermalization time allows for a uniform temperature distribution
in the absorber. Afterwards, the temperature is measured.
Finished The measurement is completed.
Tab. 4.2: Status messages
4.5.2 Warning message
Warning message Reason
Safety interlock open The absorber temperature has exceeded 100°C. In order to protect
the device, the safety Interlock is switched to the impermissible
operating status.
Tab. 4.3: Warning message
This warning message does not imply an error. The message is automatically
reset as soon as the absorber temperature falls below 100 °C. The safety
interlock is then also automatically switched back to the permissible operating
status.
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, refer
to the information according to chapter13 „Technical data“ on page54.
4.6.1 Charging the lithium-ion battery
Fully charge the battery on the PC before using it for the first time. The first complete
charge on the PC requires approx. 3hours. Only use the supplied USB cable to charge
the battery. Recharge the battery when the charge level reaches 20percent. Do not

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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 combus-
tible materials. Do not expose the device to direct sunlight. Please charge the battery at
least every three months.
4.6.3 Dangers to health and the environment in the event of damage to the
lithium-ion battery
In general, contact with leaking battery components may pose a hazard to health and
the environment. Do not open the device to replace or dismantle the battery:
• When the battery is damaged, fluids (electrolytes) may leak out. These are flam-
mable, 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 percent. The accuracy of this display
depends on various factors (e.g. temperature, age of the battery, etc.). Recharge the
battery when the charge level reaches 20percent.
The battery has a capacity of 1400mAh. The charging time of the battery on the PC
via USB connection with a charging current of 500mA is approx. 3hours.
At 100% charge status, the possible operating time is approx. 8hours (equivalent to
approx. 100measurements). When using all power saving functions (see chapter 9.2.3
on page40) approx. 20hours.

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5 Transport and storage
5.1 Warning messages
NOTICE
Damaging/ Destruction of the device
The device optical components may be damaged if the device is sub-
jected to hard shocks or is allowed to fall.
 Handle the device carefully when transporting or installing it.
 To avoid contamination, cover the inlet aperture with a suitable protective
film.
5.2 Shipping the device with battery
The device with a permanently built-in battery is a dangerous good in case of shipment
and is classified as “lithium ion batteries contained in equipment”.
Particularly in case of a damaged battery, special regulations must be observed.
A damaged battery can cause fire! This battery must be sorted out, checked and, if
necessary, repacked by qualified personal! Please observe the requirements for ship-
ping according to the valid regulations.
Battery details for shipping
Cell / battery typ: Lithium Ion
Cell or battery: Cell
LC or Wh rating: 5.2 Wh
Cell / battery weight: 25 g
UN-Classification: UN 3481: Lithium ion batteries contained in equipment

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6 Mounting
6.1 Conditions at the installation site
• The device must not be operated in a condensing atmosphere.
• The ambient air must be free of organic gases.
• Protect the device from splashes of water and dust.
• Operate the device in closed rooms only.
In industrial environments, strong electromagnetic fields can possibly trigger faulty mea-
surements. In this case we recommend EMC compliant shielding of the safety interlock
cable.
6.2 Use within the laser processing head
6.2.1 Installation into the laser processing head
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. Remove the protective glass cassette (part of the laser system) from the laser
processing head.
• Protect the protective glass of the protective glass cassette from contamination.
NOTICE
Damaging/ Destruction of the device or the laser system
Contamination and fingerprints on the protective window can lead to
damage or shattering or splintering of the protective window during mea-
suring operation.
Parts of the protective window can get into the laser system and damage
it.
 Do not touch the protective window.
 Only operate the device with a clean protective window.
4. Remove the protective film from the protective window of the device.
5. Push the device into the slot of the laser processing head until the locking latch
locks into the cutout (see Fig. 4.1 on page13).

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6. Ensure a secure fit of the device within the laser processing head:
• The device must be fully seated within the laser processing head until the locking
latch engages in the cutout.
7. Connect the safety interlock connection cable.
6.2.2 Possible mounting positions
Insert the PowerMeasuringCassette PMC-LSK into the laser processing head so that
the laser beam hits the protective window.
6.2.3 Removal from the laser processing head
DANGER
Serious eye or skin injury due to laser radiation
If the device is pulled out of the laser processing head during the mea-
surement, scattered or directed reflection of the laser beam will occur.
 First turn the laser source off and then remove the device from the laser
processing head.
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. Remove the safety interlock connection cable, press the locking latch and remove
the device from the laser processing head.
4. Apply a suitable protective film to prevent contamination of the protective window.
5. Insert the protective glass cassette (part of the laser system) back into the laser
processing head.

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6.3 Use as „Stand-Alone“ device
6.3.1 Prepare mounting
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
Severe eye or skin injury due to laser radiation
If the stability of the device is not ensured or the inlet aperture is not cen-
tered and mounted perpendicular to the laser beam, increased scattered
or directed reflection of the laser beam will occur.
 Align the device as described in chapter 6.3.3 on page20.
 Install the device according to chapter 6.3.4 on page22 in a way that
ensures, that the device can not shift or fall.
NOTICE
Damaging/ Destruction of the device
Contamination and fingerprints on the protective window can lead to
damage or shattering or splintering of the protective window during mea-
suring operation.
 Do not touch the protective window.
 Only operate the device with a clean protective window.
6.3.2 Possible mounting positions
When used as a “Stand-Alone” device, the device can be mounted vertically or horizon-
tally.
6.3.3 Align the device
The device must be aligned to the laser beam. The laser beam must hit the inlet aper-
ture in the middle and perpendicular. Please mind and adhere to the specifications and
limit values given in chapter13 „Technical data“ on page54.