35,0(6Operating Manual
Translation of the original instructions

PowerMeasuringCassette PMC
PMC-BEO, PMC-YW, PMC-ALO

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

35,0(6PowerMeasuringCassette PMC

Table of contents
1

Basic safety instructions

7

2

Symbol explanation

93

Conditions at the installation site

10

4Special instructions for measuring devices with rechargeable
lithium ion batteries

10

System description

11

5

5.1

Measuring principles............................................................................. 11

6

Transportation

11

7

Installation/Removal (Laser processing head)

12

8

9

10

7.1

Installation into the laser processing head............................................. 12

7.2

Mounting position................................................................................. 12

7.3

Removal from the laser processing head............................................... 13

Installation/Removal („Stand-alone“ device)
8.1

Prepare installation................................................................................ 14

8.2

Mounting position................................................................................. 14

8.3

Install the PMC..................................................................................... 16

8.4

Remove the PMC................................................................................. 16

Connections

4

17

9.1

Safety interlock..................................................................................... 17

9.2

Micro-USB socket................................................................................ 18

Control elements
10.1

11

14

19

On/Off button........................................................................................ 19

Display19

11.1

Status messages.................................................................................. 20

11.2

Warning message................................................................................. 20

11.3

Capacity of rechargeable lithium ion battery.......................................... 20
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13

14

Measuring and displaying with the PMC

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12.1

Safety instructions................................................................................ 21

12.2

Laser parameter setting........................................................................ 23
12.2.1

Setting the laser rise time........................................................ 23

12.2.2

Minimum energy per single measurement............................... 24

12.3

Single measurement............................................................................. 25

12.4

Serial measurement.............................................................................. 26

12.5

Measurement with pulsed lasers........................................................... 27

12.6

Read measuring values......................................................................... 27

Measurement and evaluation via software

28

13.1

Measurement and evaluation with the LaserDiagnosticsSoftware LDS.. 28

13.2

Functions and settings via the software................................................. 28

Maintenance and service
14.1

29

Exchanging the protective window........................................................ 29
14.1.1

Safety instructions................................................................... 30

14.1.2

Exchanging the protective window on the PMC-BEO.............. 32

14.1.3

Exchanging the protective window on the PMC-YW................ 33

14.1.4

Exchanging the protective window on the PMC-ALO.............. 34

15

Measures for the product disposal

35

16

Technical Data

36

17

18

16.1

PMC-BEO with standard or advanced absorber................................... 36

16.2

PMC-YW/PMC-ALO with standard absorber........................................ 38

Dimensions

40

17.1

PMC-BEO............................................................................................. 40

17.2

PMC-YW.............................................................................................. 41

17.3

PMC-ALO............................................................................................. 41

Declaration of conformity

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6Appendix

PowerMeasuringCassette PMC

43

19.1

Max. laser power depending on the irradiation time fordevices with standard absorber............................................................ 43

19.2

Max. laser power depending on the beam diameter for
devices with standard absorber............................................................ 43

19.3

Max. laser power depending on the irradiation time fordevices with advanced absorber........................................................... 44

19.4

Max. laser power depending on the beam diameter for
devices with advanced absorber........................................................... 44

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Basic safety instructions

Intended use
The PowerMeasuringCassette PMC is used to measure power of lasers directly in thelaser processing head. Alternatively, the PMC can also be operated outside the laser
processing head as a „Stand-Alone“ device. Please observe and adhere to the specifications and limit values given in chapter 16, „Technical Data“, on page 36. Other
forms of usage are improper. The information contained in this operating manual must
be strictly observed to ensure proper use of the device.
Using the device for unspecified use is strictly prohibited by the manufacturer. By usage
other than intended the device can be damaged or destroyed. This poses an increased
health hazard up to fatal injuries. When operating the device, it must be ensured that
there are no potential hazards to human health.
The device itself does not emit any laser radiation. During the measurement, however, the laser beam is guided onto the device which causes reflected radiation (laser
class 4). That is why the applying safety regulations are to be observed and necessary
protective measures need to be taken.
In measuring mode, the device’s safety interlock must be connected with the laser
control.
Observing applicable safety regulations
Please observe valid national and international safety regulations as stipulated in ISO/CEN/TR standards as well as in the IEC-60825-1 regulation, in ANSI Z 136 “Laser
Safety Standards” and ANSI Z 136.1 “Safe Use of Lasers”, published by the American
National Standards Institute, and additional publications, such as the “Laser Safety
Basics”, the “LIA Laser Safety Guide”, the “Guide for the Selection of Laser Eye Protection” and the “Laser Safety Bulletin”, published by the Laser Institute of America, as wellas the “Guide of Control of Laser Hazards” by ACGIH.
Taking necessary safety measures
If there are people present within the danger zone of visible or invisible laser radiation,for example near laser systems that are only partly covered, open beam guidance systems or laser processing areas, the following safety measures need to be taken:•

Connect the device’s safety interlock to the laser control. Check that the safety
interlock will switch off the laser properly in case of error.

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•
•
•

•

•
•

PowerMeasuringCassette PMC

Please wear safety goggles adapted to the power, power density, laser wave
length and operating mode of the laser beam source in use.
Depending on the laser source, it may be necessary to wear suitable protective
clothing or protective gloves.
Please protect yourself from direct laser radiation, scattered radiation as well asfrom beams generated from laser radiation (e.g. by using appropriate shielding
walls or by weakening the radiation to a harmless level).
Please use beam guidance- or beam absorber elements which do not emit any
hazardous particles as soon as they get in contact with laser radiation and which
resist the beam sufficiently.
Please install safety switches and/or emergency safety mechanisms which enable
an immediate closure of the laser shutter.
Please ensure a stable mounting of the device in order to prevent a relative motionof the device to the beam axis of the laser and thus to reduce the risk of strayradiation.

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, modifications and repairs
The device must not be modified, neither constructionally nor safety-related, without
our explicit permission. The device must not be opened e.g. to carry out unauthorized
repairs. Modifications of any kind will result in the exclusion of our liability for resulting
damages.
Liability disclaimer
The manufacturer and the distributor of the measuring devices do not claim liability
for damages or injuries of any kind resulting from an improper use or handling of thedevices or the associated software. Neither the manufacturer nor the distributor can beheld liable by the buyer or the user for damages to people, material or financial losses
due to a direct or indirect use of the measuring devices.

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Symbol explanation

The following symbols and signal words indicate possible residual risks:

DANGER
means that death or serious physical injuries will occur if necessary safety
precautions are not taken.

WARNINGmeans that death or serious physical injuries can occur if necessary safety
precautions are not taken.

CAUTIONmeans that a slight physical injury can occur if necessary safety precautions
are not taken.

NOTICEmeans that property damages can occur if necessary safety precautions are
not taken.
The device itself or the packing bears the following symbols to indicate requirements and possible dangers:
Read and observe the operating instructions and safety guidelines before thestart-up!

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Further symbols that are not safety-related:
Here you can find useful information and helpful hints.

With the CE marking the manufacturer guarantees that his product is in conformity with the EC guidelines.
Call for observing (visual feedback from the device or the software).

X

3

Call for action

Conditions at the installation site

The device must only be operated in a dry and dust free atmosphere. High levels of
humidity can lead to condensation, which can affect the operation of the device. This
also applies to high environmental dust exposure.
In industrial environments erroneous measurements may be triggered by strong electromagnetic fields. In this case we recommend EMC compliant shielding of the safety
interlock cable.

4

Special instructions for measuring devices with rechargeable lithium ion batteries

The device is equipped with a lithium-ion battery. Note that this battery may ignite or
explode at high temperatures.
To operate the device, the ambient conditions must therefore be observed and adhered
to in accordance with the specifications in chapter 16, „Technical Data“, on page 36.
The lithium-ion battery is permanently installed in the device. Do not open the device
to replace the lithium-ion battery, as damage to the battery may result in the escape of
harmful substances.

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System description

Protective window
Protective windowholderSafety interlock
connection
Locking latch

Display

On/Off button
Fig. 5.1:

5.1

System description of the PMC

Measuring principles

The absorber of the calorimetric measurement system is irradiated by a laser for a shortperiod of time. The temperature difference of the absorber between start and finishof the laser pulse is measured. From the increase in temperature, the microprocessor
based electronics is able to calculate laser power to a high degree of accuracy.

6

Transportation
NOTICE
Damaging/Destruction of the device
Hard impacts or dropping the device can damage the optical and electrical components.
X

Only transport the device in its original packaging.

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7

Installation/Removal (Laser processing head)

7.1

Installation into the laser processing head

1.
2.
3.
•

Turn off the laser source.
Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that theycannot be set in motion unintentionally.
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
Damage to the laser system
Contamination and fingerprints on the protective window can lead todamage or shattering or splintering of the protective window during measuring operation. Parts of the protective window can get into the laser
system and damage it.

4.
5.
6.
•
7.

7.2

X

Do not touch the protective window.

X

Only operate the device with a clean protective window.

Remove the protective foil from the protective window of the device.
Insert the device into the slot of the laser processing head until the locking latch
locks in place (see Fig. 5.1 on page 11).
Ensure a secure fit of the device in the laser processing head:
The device must be fully seated until the locking latch engages in the laser processing head.
Connect the safety interlock connection cable.

Mounting position

Insert the PMC into the laser processing head so that the laser beam hits the protective
window.

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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 measurement, scattered or directed reflection of the laser beam will occur.
X

1.
2.
3.
4.
5.

First turn the laser source off and then remove the device from the laser
processing head.

Turn off the laser source.
Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that theycannot be set in motion unintentionally.
Remove the safety interlock connection cable, press the locking latch (see Fig. 5.1
on page 11) and remove the device from the laser processing head.
Apply the protective foil to prevent contamination of the protective window.
Insert the protective glass cassette (part of the laser system) back into the laser
processing head.

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8

Installation/Removal („Stand-alone“ device)

8.1

Prepare installation

1.
2.

Turn off the laser source.
Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that theycannot be set in motion unintentionally.

DANGER
Serious eye or skin injury due to laser radiation
If the stability of the device is not guaranteed or the inlet aperture is notcentered and mounted perpendicular to the laser beam, increased scattered or directed reflection of the laser beam will occur.
X

Align the device as described in chapter 8.2 on page 14.

X

Install the device according to chapter 8.3 on page 16 in a way that
ensures, that the PMC can not shift or fall.

CAUTION
Cutting hazard
Contamination and fingerprints on the protective window can lead todamage or shattering or splintering of the protective window during measuring operation.

8.2

X

Do not touch the protective window.

X

Only operate the device with a clean protective window.

Mounting position

When installed as „Stand-Alone“ device the PMC can be mounted vertically or horizontally. The PMC must be aligned to the laser beam. The laser beam must hit the inlet
aperture in the middle and perpendicular. Please mind and adhere to the specifications
and limit values given in chapter 16, „Technical Data“, on page 36.

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Normally, the PMC is positioned underneath the focus position of the beam path for
power measurement (divergent laser radiation). If this is not possible, the PMC can bepositioned above the focus. Please note, that in this case the laser radiation is convergent and the permissible power density on the absorber (approx. 2 mm underneath theprotective window) must not be exceeded.

Focal width f

Focusing optics

PowerMeasuringCassette PMC

Approx. focal width f

Focusing planemax. 30 mm(max. power density 1.5 kW/cm²)

Inlet aperture
center point

Fig. 8.1:

Alignment to the laser beam (example for an BEO optics with an inlet aperture Ø = 50 mm)

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1.

PowerMeasuringCassette PMC

Install the PMC
Align the device with the laser beam as described in chapter 8.2 on page 14
and Fig. 8.1 on page 15.
The distance between the entrance inlet aperture center point and the mounting threads M3 as well as the spacing of the mounting threads M3 from one
another are the same for all PMC variants.

2.
•
3.
•
4.
5.

Install the device with the mounting threads M3 at the bottom of the device (seeFig. 8.2 on page 16).
Observe the maximum screw-in depth of 5 mm.
Ensure a stable installation of the device:
The device must not be able to move.
Connect the safety interlock connection cable.
Remove the protective foil from the protective window of the device.

Inlet aperture
center point
2 x M3max. screw-in depth 5 mm

Fig. 8.2:

8.4
1.
2.
3.
4.
5.
16

Mounting threads, bottom view

Remove the PMC
Turn off the laser source.
Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that theycannot be set in motion unintentionally.
Unscrew 2 screws from the 2 mounting threads M3 on the underside of the device (see Fig. 8.2 on page 16).
Remove the safety interlock connection cable and remove the device from thelaser system.
Apply the protective foil to prevent contamination of the protective window.

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9Connections

Micro-USB socket
Fig. 9.1:

9.1

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Safety interlock connection

Connections (example PMC-BEO)

Safety interlock

At temperatures over 100 °C, the safety interlock is triggered in order to protect theabsorber from overheating. If the absorber is hotter than 100 °C, Pin 3 and Pin 4 willconnect.
Since the heat is concentrated in the area where the laser beam hits, the safety interlock
may be triggered shortly after the beam comes on, since the temperature of the absorber briefly exceeds 100 °C. When the device is used in accordance with the technicalspecifications, this brief spike in the temperature of the absorber does not pose a risk to
the absorber and does not constitute an error.
Unfortunately, it is not possible to trigger the safety interlock on a time delay, because
otherwise there would be no way to ensure that it protects against overheating.
Once the absorber cools off, Pin 1 and Pin 4 of the safety interlock are connected. A
suitable 2 m long connection cable is included.

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NOTICE
Damaging/Destruction of the device
If the safety interlock is not connected, the device can be damaged or
destroyed due to overheating.
When connecting the laser control, please ensure that the laser is turned
off in case of an interruption of the connection.

X

Pin diagram safety Interlock
plug (view connector side)

Pin

4
1

Tab. 9.1:

9.2

3

Wire color

Function

4Black

Mutual 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 the safety interlock plug

Micro-USB socket

You can charge the rechargeable lithium ion batteries of the measuring device by plugging them into the micro-USB socket on the PC. A suitable cable is included in thescope of delivery.
When using the optional LaserDiagnosticsSoftware LDS, the device communicates with
the LDS via the micro-USB socket.
You will find the PRIMES USB-driver for all USB-capable devices on the
PRIMES website at: https://www.primes.de/en/support/downloads/software.html.

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10Control elements

10.1

On/Off button

The on/off button have several functions:
Keystroke

Function

5 seconds

Turn on/Turn off

2 seconds

Show measuring values

Repeated pushing for 2 seconds

Turn over measuring value display

Fig. 10.1: On/Off button

11

DisplayLaser power in Watt
Absorber temperature
Battery capacity
Status message
Fig. 11.1: Display

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PowerMeasuringCassette PMC

Status messages

Status Message

Meaning

Waiting for laser beam

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

Check temp.

The temperature gradient (change in the absorber temperature/time)
is checked. Please wait until the message disappears. Thereafter, thedevice is ready to measure again.

Thermalize

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

Finished

The measurement is completed.

Tab. 11.1: Status messages

11.2

Warning message

Warning Message

ReasonSafety interlock open

The absorber temperature has exceeded 100 °C. In order to protect
the device, the safety circuit is open.

Tab. 11.2: Warning message

This warning message does not imply an error. The message is automatically
reset as soon as the absorber temperature is below 100 °C again. Likewise,
the safety circuit is then closed again.

11.3

Capacity of rechargeable lithium ion battery

The capacity of the rechargeable lithium-ion battery is displayed in percentage. The
accuracy of this display is subject to various factors (such as, for example, the temperature, the battery condition, etc.). We therefore recommend charging the battery when
20 % are displayed. If the battery is fully discharged, the charging can take between 12
and 14 hours.
Please note that the charging process can only be carried out in the temperature range
from 0 °C to + 45 °C to protect the battery. With a battery capacity of 100 %, the device
has an operating time of approx. 8 hours (equivalent to approx. 100 measurements).
When using all power saving functions (see Tab. 13.1 on page 28) approx. 20 hours.
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Measuring and displaying with the PMC

12.1

Safety instructions

35,0(6DANGER
Severe eye or skin injury due to laser radiation(when operated as a „Stand-Alone“ device)During the measurement the laser beam is guided on the device, whichcauses scattered or directed reflection of the laser beam (laser class 4).
X

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. by using appropriate shielding).

CAUTION
Cutting hazard
Contamination and fingerprints on the protective window can lead todamage or shattering or splintering of the protective window during measuring operation.
X

Do not touch the protective window.

X

Regularly check the condition of the protective window and exchange it
in case of pollution (see chapter 14.1, „Exchanging the protective window“, on page 29).

X

Only operate the device with a clean protective window.

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NOTICE
Damage to the laser system(when operating the device in the laser processing head)Contamination and fingerprints on the protective window can lead todamage or shattering or splintering of the protective window during measuring operation. Parts of the protective window can get into the laser
system and damage it.
X

Do not touch the protective window.

X

Regularly check the condition of the protective window and exchange it
in case of pollution (see chapter 14.1, „Exchanging the protective window“, on page 29).

X

Only operate the device with a clean protective window.

NOTICE
Damaging/Destruction of the device
The maximum permissible energy per laser pulse is different for thedifferent version of the PMC and depends on various variables, including
the absorber temperature.
X

22

Please observe the limit values and dependencies specified in chapter 16, „Technical Data“, on page 36 and chapter 19, „Appendix“, onpage 43 before the measurement.

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12.2

Laser parameter setting

12.2.1

Setting the laser rise time

The applicable measurement time is between 0.1 s and 2.0 s, which has to be transferred to the laser controller as pulse length. The maximum laser rise time for power
measurement cannot exceed 100 µs. This limit has to be adhered to in order to avoid
incorrect results of the power measurement.
Some laser beam sources are factory set with power ramps of up to a few 100 ms toswitch on the laser beam. To achieve the correct power values the shortest possible risetime (< 100 μs) has to be set.
P
PMax
PMeas

tp

t0

t

100 µsFig. 12.1: Laser rise time > 100 µs
PPMax ≙ PMeast0

100 µstptFig. 12.2: Laser rise time < 100 µs
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PowerMeasuringCassette PMC

Minimum energy per single measurement

The energy used for the measurement must achieve a sufficiently high temperature in
the absorber to be recorded with high precision. Energy of about 300 J is generally
recommended, as long as the measurement duration is < 2 s.
Example: With a laser power of 1 kW and an irradiation time of 300 ms, 300 J are
absorbed.
E = P · t = 1 000 W · 0.3 s = 300 J
Tab. 12.1 on page 24 shows information for selecting the energy permissible for ameasurement in conjunction with the absorber temperature.
Max. energy input:

Permissible measuring energy in J

3 000
1 000

25 °C Ambient temperature

100

10

PMC-BEO,

PMC-YW,

PMC-ALO

Min. energy input

The measuring range varies in accordance with the ambient
temperature. To achieve the greatest possible accuracy, theabsorber temperature should be close to the ambient temperature, particularly when it comes to the measurement of small
amounts of energy (< 200 J).
25

30

35

40

45

50

55

60

65

70

Absorber temperature in °C
Tab. 12.1: Measuring range as a function of the absorber temperature

The minimum energy application shows the limit above which a measurement can be
performed with high precision. The maximum energy application value specifies the limit
at which the absorber reaches its reliable limit temperature. The energy, e.g. for multiple
measurements (series measurements) can be distributed across the range shown ingreen (using the PMC-BEO as an example).
If the absorber temperature is greater than 70 °C, it won’t be possible to take any further measurements. In this case, please wait until the temperature falls to below 50 °C(depending on the energy application selected). Please take the limit values from Tab.
12.1 on page 24.
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12.3

Single measurement

Please read chapter 12.1, „Safety instructions“, on page 21 first.
XX

Press the on/off button for atleast 5 seconds.
The start menu appears.

After approx. 5 seconds, thedevice is ready for operation.

XX

Turn on the laser.

For a high measurement accuracy, we recommend
an energy input of 300 J per measurement.
See chapter 12.2.2, „Minimum energy per single
measurement“, on page 24.
Observe the information on serial measurements
according to chapter 12.4 on page 26.

The thermalization is displayed bymeans of a progress bar (duration
approx. 15 seconds).

The measured power, the temperature, and the irradiation time
are displayed.

The device turns off automatically after approx. 10 minutes. You can also turn off thedevice manually by keeping the on/off button pressed for approx. 4 seconds.

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Serial measurement

Please read chapter 12.1, „Safety instructions“, on page 21 first.
Always start a measurement series with the smallest power and increase it gradually.
Small amounts of energy should be measured with absorber temperatures that areclose to the ambient temperature.
In general:
The minimum amount of irradiated energy should amount to approximately twenty times
the difference of the absorber temperature minus room temperature, so at least 50 J.
In case of subsequent measurements, the residual capacity of the absorber for anotherlaser pulse has to be considered. Tab. 12.2 on page 26 shows information for selecting the energy permissible for a series measurement in conjunction with the absorbertemperature.
Max. energy input:

Permissible measuring energy in J

3 000
1 000

PMC-BEO,

PMC-YW,

PMC-ALO

5th measurement 900 J

4th measurement 600 J

Min. energy input
3rd measurement 300 J
100

2nd measurement 100 J
1st measurement 50 J

10

25

30

35

40

45

50

55

60

65

70

Absorber temperature in °C
Tab. 12.2: Example of a series measurement in conjunction with the absorber temperature

If the absorber temperature is greater than 70 °C, it won’t be possible to take any further measurements. In this case, please wait until the temperature falls to below 50 °C(depending on the energy application selected). Please take the limit values from Tab.
12.2 on page 26.

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Measurement with pulsed lasers

Measurements can be performed with pulsed lasers, but capabilities are limited. Whenit comes to pulsed laser radiation a correct exposure time measurement up to a pulse
frequency of 1 kHz and a duty cycle of 50 % is possible.
In case of on/off times shorter than 500 μs a correct exposure time measurement is notpossible.

12.6

Read measuring values

The last 14 measuring values can be read off the display of the PowerMeasuringCasettePMC. The last 30 measuring values can be read with the optional PRIMES Cube App
for mobile Android™ devices or the optional LaserDiagnosticsSoftware LDS.
XX

Press the on/off button for approx.
2 seconds.
The measured values and the time aredisplayed.

XX

Press the on/off button again for 2 seconds to have the remaining measuring
values (no. 8-14) displayed.

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13

Measurement and evaluation via software

13.1

Measurement and evaluation with the LaserDiagnosticsSoftware LDS

With the optional operating and evaluation software LaserDiagnosticsSoftware LDS you
can also operate the device via the PC and evaluate the measurements. The functions
can be found in Tab. 13.1 on page 28.

13.2

Functions and settings via the software

Function

Possible settings

Auto ready

By default, the device automatically returns to measurement readiness after each measurement. If you uncheck the box, you will needto reset the unit after each measurement by briefly pressing the on/of button.

Power Saving Function

Continuous background on/off
Turn off backlight after (in s). The set time only applies if the permanent backlight is switched off.
Switch the safety interlock on/off. For safety reasons switching off thesafety interlock is not recommended.
Switch off the device after an entered time

Tab. 13.1: Functions and settings

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Maintenance and service

The operator is responsible for determining the maintenance intervals for the measuring
device.
PRIMES recommends a maintenance interval of 12 months for inspection and validationor calibration.
If the device is used only sporadically, the maintenance interval can also be extended up
to 24 months.

14.1

Exchanging the protective window

The protective window in the beam entrance is a wearing part and can be replaced
if necessary. Low levels of contamination of the protective window can be carefully
removed when cooled with Isopropanol (observe the manufacturer‘s safety instructions).
In case of heavy, non-removable contamination or damage, the protective window must
be replaced with a new one.
The protective window is coated with an antireflection coating and has low
reflection values of less than 1%. To avoid increased reflection values, use only
original PRIMES protective window.
PMC-BEO
Protective window diameter 55 mm
Glass thickness		
1.5 mmOrder number		
410-070-021 (1 piece); 410-070-031 (10 pieces)
PMC-YW
Protective window diameter 50 mm
Glass thickness		
1.5 mmOrder number		
410-030-002 (1 piece); 410-030-006 (10 pieces)
PMC-ALO
Protective window diameter 55 mm
Glass thickness		
1.0 mmOrder number		
410-030-004 (1 piece); 410-030-005 (10 pieces)

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PowerMeasuringCassette PMC

Safety instructions

DANGER
Severe 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 new protective window is positioned evenly in the indentation.

CAUTION
Burns due to hot components
After a measurement the absorber below the protective window is hot!
Unintentional contact during the protective window exchange could leadto burns.
X Do not replace the protective window directly after a measurement.
X Let the device cool down for an adequate period of time. The coolingtime varies depending on the laser power and the irradiation time.

CAUTION
Cutting hazard
Contamination and fingerprints on the protective window can lead todamage or shattering or splintering of the protective window during measuring operation.

30

X

Only replace the protective window in a dust-free environment.

X

Do not touch the protective window.

X

When exchanging the protective window, always wear cotton- or powderfree latex gloves.

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35,0(6NOTICE
Damage to the laser system(when operating the device in the laser processing head)Contamination and fingerprints on the protective window can lead todamage or shattering or splintering of the protective window during measuring operation. Parts of the protective window can get into the laser
system and damage it.
X

Only replace the protective window in a dust-free environment.

X

Do not touch the protective window.

X

When exchanging the protective window, always wear cotton- or powderfree latex gloves.

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1.
2.
3.
•
4.
5.
•
6.
7.
8.
•

PowerMeasuringCassette PMC

Exchanging the protective window on the PMC-BEO

Observe the safety instructions in chapter 14.1.1 on page 30.
Unscrew the 4 Torx screws M3 x 8 mm on the protective window holder.
Place the device as shown in Fig. 14.1 on page 32 and carefully remove theprotective window holder upwards.
Make sure that the inserted Teflon cord and the mirror do not fall out of the device.
Remove old protective window from the device and dispose of it.
Wear cotton or powder-free latex gloves and insert new protective window into
the device.
Ensure that the inserted Teflon cord and the mirror is not out of place.
Place the protective window holder according to Fig. 14.1 on page 32 with the
2 recesses towards the front.
Tighten the protective window holder with 4 Torx screws M3 x 8 mm.
Check for secure fit of the protective window holder:
The protective window holder must lie flat against the device.
Torx screws
M3 x 8 mm
Protective windowholder2 recesses
Protective
window
MirrorTeflon cord

Fig. 14.1: Exchanging the protective window on the PMC-BEO

32

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14.1.3
1.
2.
3.
•
4.
5.

35,0(6

Exchanging the protective window on the PMC-YW

Observe the safety instructions in chapter 14.1.1 on page 30.
Unscrew 2 Torx screws M3 x 5 mm on the protective window holder.
Place the device as shown in Fig. 14.2 on page 33 and carefully remove theprotective window holder upwards.
Make sure that the inserted mirror do not fall out of the device.

•

Remove old protective window from the device and dispose of it.
Wear cotton or powder-free latex gloves and insert the new protective window
into the device.
Ensure that the inserted mirror is not out of place.

6.
7.

Place the protective window holder according to Fig. 14.2 on page 33.
Tighten the protective window holder with 2 Torx screws M3 x 5 mm.

8.
•Check for secure fit of the protective window holder:
The protective window holder must lie flat against the device.
Torx screws
M3 x 5 mmProtective windowholderProtective
window
MirrorFig. 14.2: Exchanging the protective window on the PMC-YW

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1.
2.
3.
•
4.
5.

PowerMeasuringCassette PMC

Exchanging the protective window on the PMC-ALO

Observe the safety instructions in chapter 14.1.1 on page 30.
Unscrew 2 Torx screws M2,5 x 5 mm on the protective window holder.
Place the device as shown in Fig. 14.3 on page 34 and carefully remove theprotective window holder upwards.
Make sure that the inserted mirror do not fall out of the device.

•

Remove old protective window from the device and dispose of it.
Wear cotton or powder-free latex gloves and insert the new protective window
into the device.
Ensure that the inserted mirror is not out of place.

6.
7.

Place the protective window holder according to Fig. 14.3 on page 34.
Tighten the protective window holder with 2 Torx screws M2,5 x 5 mm.

8.
•Check for secure fit of the protective window holder:
The protective window holder must lie flat against the device.
Torx screws
M2,5 x 5 mmProtective windowholderProtective
window
MirrorFig. 14.3: Exchanging the protective window on the PMC-ALO

34

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1535,0(6

Measures for the product disposal

Due to the Electrical and Electronic Equipment Act (“Elektro-G“) PRIMES is obliged todispose PRIMES measuring devices manufactured after August, 2005, free of charge.
PRIMES is a registered manufacturer in the German “Used Appliances Register“(Elektro-Altgeräte-Register “EAR“) with the number WEEE-reg.-no. DE65549202.
Provided that you are located in the EU, you are welcome to send your PRIMES devices
to the following address, where they will be disposed free of charge (this service does
not include shipping costs):
PRIMES GmbH
Max-Planck-Str. 264319 Pfungstadt
Germany

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16

Technical Data

16.1

PMC-BEO with standard or advanced absorber

Measurement parameters

Standard absorber 1)

Max. beam dimensions on the absorber

Advanced absorber 1)

30 mm

Wavelength range

900 – 1 090 nm

Power range

400 – 6 000 W 2)

Irradiation time

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

Total duration until measurement value output

400 – 12 000 W 2)

< 15 sNominal measuring frequency

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

Measuring accuracy at angles of incidence
up to 5 °±3%

Reproducibility±1%

Limit values

Standard absorber

1)

Advanced absorber 1)

Max. absorber temperature

120 °C

Energy per measurement

50 – 3 000 J

Recommended energy per measurement

300 – 500 J

Max. power density (peak) on
the absorber (approx. 2 mm
underneath the protective
window) at beam diameters> 10 mm

1.5 kW/cm²

4 kW/cm²

10 – 3 mm

2.5 kW/cm²

5 kW/cm²

3 – 1.5 mm

5 kW/cm²

10 kW/cm²< 1.5 mm

6 kW/cm²

12 kW/cm²

Max. laser rise time

100 µsMax. angle of incidence perpendicular to inlet
aperture±5°

Max. centered tolerance
1)36± 2.0 mm

Please read the information on the identification plate to determine if your device is equipped witha standard or advanced absorber.

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When nothing is marked, a standard absorberis built into the device.
2)

When an A marking is made, an advanced
absorber is built into the device.

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

Supply data
Power supply

Integrated lithium-ion battery, which can be
charged via a micro-USB port

Temperature range for charging the lithiumIon battery

0 – 45 °C

Communication
Interfaces

USB

Dimensions and weight
Dimensions (LxWxH)

179 x 84 x 31 mm

Weight (approx.)

460 g

Environmental conditions
Operating temperature range

10 – 40 °C

Storage temperature range

5 – 50 °C

Reference temperature

22 °C

Permissible relative humidity(non-condensing)

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PowerMeasuringCassette PMC

PMC-YW/PMC-ALO with standard absorber

Measurement parameters

PMC-YW

PMC-ALO

Max. beam dimensions on the absorber
Wavelength range

30 mm
900 – 1 090 nm

Power range

400 – 6 000 W 1)

Irradiation time

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

Total duration until measurement value output
Nominal measuring frequency

400 – 6 000 W 1)

< 15 s300 J: 1 cycle/min
3 000 J: 1 cycle/min

Measuring accuracy at angles of incidence
up to 5 °±3%

Reproducibility±1%

Limit values

PMC-YW

Max. absorber temperature

PMC-ALO
120 °C

Energy per measurement

30 – 2 000 J

25 – 1 500 J

Recommended energy per measurement

300 – 500 J

Max. power density (peak) on
the absorber (approx. 2 mm
underneath the protective
window) at beam diameters> 10 mm

1.5 kW/cm²

10 – 3 mm

2.5 kW/cm²

3 – 1.5 mm

5 kW/cm²< 1.5 mm

6 kW/cm²

Max. laser rise time

100 µsMax. angle of incidence perpendicular to inlet
aperture±5°

Max. centered tolerance
1)38± 2.0 mm

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

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Supply data
Power supply

Integrated lithium-ion battery, which can be
charged via a micro-USB port

Temperature range for charging the lithiumIon battery

0 – 45 °C

Communication

PMC-YW

PMC-ALO

Interfaces

USB

Dimensions and weight
Dimensions (LxWxH)
Weight (approx.)

171 x 84 x 24 mm

177 x 84 x 24 mm

280 g

280 g

Environmental conditions
Operating temperature range

10 – 40 °C

Storage temperature range

5 – 50 °C

Reference temperature
Permissible relative humidity(non-condensing)

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22 °C
10 – 80 %39

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Dimensions

17.1

PMC-BEO

PowerMeasuringCassette PMC

All dimensions in mm (general tolerance ISO 2768-v)

40

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17.2

PMC-YW

170.7

All dimensions in mm (general tolerance ISO 2768-v)

17.3

PMC-ALO

All dimensions in mm (general tolerance ISO 2768-v)
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Declaration of conformity

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19

Appendix

19.1

Max. laser power depending on the irradiation time for devices
with standard absorberAl Absorber
7000

Laserleistung

Laser power in W

6000
5000
4000
3000
2000
1000
0

19.2

0

0,2

0,4
0,6
0,8
Irradiation
time
in
s
Maximale Bestrahlungsdauer

1

1,2

Max. laser power depending on the beam diameter for devices
with standard absorber

Laser power in W

10000

1000

Empfohlene
Werte
Recommended
valuesGrenzwerte
Limit values

100

0

5

10

15

20

25

30

35

STRAHLDURCHMESSER IN MM

Beam diameter in mm

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PowerMeasuringCassette PMC

Max. laser power depending on the irradiation time for devices
with advanced absorber
14000

Laser power in W

12000
10000
8000
6000
4000
2000
0

0

0,2

0,4

0,6

0,8

1

1,2

Irradiation time in s

19.4

Max. laser power depending on the beam diameter for devices
with advanced absorber

Laser power in W

10000

1000

Empfohlene
Werte
Recommended
valuesLimit values
Grenzwerte

100

0

5

10

15

20

25

30

35

Beam diameter in mm

44

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