35,0(6Original Instructions

PowerMonitor PM+ HP15
LaserDiagnosticsSoftware LDS

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

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Table of contents
1

Basic safety notes

72

Icons and conventions

8

3

About this operating manual

104Device description

10

4.1
4.2
4.3
4.4
4.5
4.6
4.7

Device types............................................................................................................................10
Functional description..............................................................................................................11
Measuring principle..................................................................................................................11
Tara/Fct. button .......................................................................................................................12
4.4.1
Tara function..............................................................................................................12
4.4.2
Switching between the screens of the display............................................................12
Optical displays .......................................................................................................................12
4.5.1
LEDs..........................................................................................................................12
4.5.2
Display ......................................................................................................................12
Explanation of the product safety labels and warning labels.....................................................14
Scope of delivery and optional accessories..............................................................................15

5

Transport and storage

16

6

Software installation

17

6.1
6.2
7

Mounting
7.1
7.2

7.3
8

8.3
8.4
8.5
8.6
8.7

18

Conditions at the installation site..............................................................................................18
Installation in the laser system..................................................................................................18
7.2.1
Prepare mounting......................................................................................................18
7.2.2
Possible mounting positions......................................................................................18
7.2.3
Align the device.........................................................................................................20
7.2.4
Mount the device.......................................................................................................22
Removal from the laser system................................................................................................23

Connectors
8.1
8.2

4

Install LaserDiagnosticsSoftware LDS......................................................................................17
Set IP address of PC................................................................................................................17

24

Overview of connectors............................................................................................................24
Power supply...........................................................................................................................25
8.2.1
Power supply via PRIMES power supply
when used as a stand-alone device...........................................................................26
8.2.2
Power supply via USB connection
and communication with the PC via USB...................................................................27
8.2.3
Power supply via PRIMES power supply
and communication with the PC via USB or Ethernet.................................................28
8.2.4
Power supply via Power over Ethernet
and communication with the PC via Ethernet.............................................................29
8.2.5
Power supply via USB-C power supply
and communication with the PC via Ethernet.............................................................30
Power In..................................................................................................................................30
Ethernet/PoE In........................................................................................................................31
USB.........................................................................................................................................31
PRIMES Universal Connector (PUC).........................................................................................31
Safety interlock (Interlock).........................................................................................................32

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8.8

9

10

Cooling circuit (Water In/Water Out)..........................................................................................34
8.8.1
Connect/remove cooling water hoses........................................................................34
8.8.2
Damage to the device................................................................................................34
8.8.3
Avoid measurement inaccuracies...............................................................................35
8.8.4
Damage to the flow meter..........................................................................................36
8.8.5
Parameters of cooling water connection....................................................................37
8.8.6
Pressure loss.............................................................................................................38

Measuring
9.1
9.2
9.3
9.4

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Warning messages...................................................................................................................39
Preparing measurement readiness...........................................................................................40
Measuring with the PM+ as a stand-alone device.....................................................................40
Measuring with the LaserDiagnosticsSoftware LDS..................................................................41
9.4.1
Connect/disconnect the device with the LDS.............................................................41
9.4.2
General information about working with the LDS........................................................43
9.4.3
Open power measurement mode..............................................................................45
9.4.4
Perform power measurement.....................................................................................46
9.4.5
Measurement results display......................................................................................48

Troubleshooting

49

10.1 Messages in the LDS during measurement..............................................................................49
10.2 Connection errors when using the LDS....................................................................................50
10.2.1 Ethernet connection errors.........................................................................................50
10.2.2 USB connection errors...............................................................................................50
10.3 Red flashing status LED without an error message on the display............................................50
10.4 Warning or error message on the display.................................................................................51
10.4.1 Warning message (status LED lights up yellow)..........................................................51
10.4.2 Error message (status LED flashes red)......................................................................52
10.5 Other errors..............................................................................................................................52
11

Maintenance and service

53

11.1 Maintenance intervals...............................................................................................................53
11.2 Cleaning the device surface.....................................................................................................53
11.3 Clean/replace sieve in the water filter........................................................................................54
12

Measures for the product disposal

55

13

Declaration of conformity

56

14

Technical data

58

15

Dimensions

60

16

Appendix

62

A
B
C
D
E

GNU GPL license notice...........................................................................................................62
Diagram for determining the max. laser power.........................................................................62
Fiber adapter............................................................................................................................63
Parallel operation of the PM+ HP15 with a FocusMonitor FM+.................................................64
Parallel operation of the PM+ HP15 with a FocusTracker FT.....................................................66

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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 diodelasers. 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 ourcustomers’ 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 all information, instructions, safety notes and warning messages in this operating manual areobserved. The specifications given in chapter 14 „Technical data“ on page 58 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 riskof injury.
This operating manual is an integral part of the device and must be kept in the immediate vicinity of the placeof 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 andunderstood 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 foryour 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 directedreflection of the laser beam (laser class 4). The reflected beam is usually not visible.
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 and operating mode of thelaser 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.

•

If the device is moved from its aligned position, increased scattered or directed reflection of the laser beamoccurs during measuring operation. Mount the device in such a way that it cannot be moved unintentionally,i.e. by bumping or pulling 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.

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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 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 the device or the associated software withoutauthorization.

2

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 nottaken.

WARNING
Means that death or serious physical injuries may occur if necessary safety precautions are nottaken.

CAUTION
Means that minor physical injury may occur if necessary safety precautions are not taken.

NOTICE
Means that property damage may occur if necessary safety precautions are not taken.

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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!

Do not reach inside!

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.
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 isirrelevant or they represent alternative courses of action.

1.

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

2.
...


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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About this operating manualThis manual describes the installation and operation of the PowerMonitor PM+ HP15 and how to performmeasurements:•

as a stand-alone-device•

with the LaserDiagnosticsSoftware LDS version 3.0 or higher.

In this operating manual, the abbreviations PM+ and LDS are used below.
For measurement operation with a PC, the LDS must be installed on the PC. The LDS is included in thedelivery. PRIMES will also 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 and evaluation of the measurement data, pleaserefer to the separate instructions for the 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.

4

Device description

4.1

Device types

The PM+ is available with different flow meters:•

Turbine•Oval wheel meter

The configuration of your device can be found on the identification plate:
PM+ with Turbine

PM+ with Oval wheel meter

Marking A

Marking B

PRIMESPRIMESType PowerMonitor
PM+ HP15
S/N 0000 Built 0000

Type PowerMonitor
PM+ HP15
S/N 0000 Built 0000

500060A-R0500060B-R0
www.primes.deFig. 4.1:

10

www.primes.deMarking of PM+ configuration with turbine or oval wheel meter

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4.2

Functional description

The PM+ is a measuring device for determining the power of laser beams in the multi-kilowatt range withwavelengths in the CO2, NIR and VIS range.
The main application is to monitor the laser power available in the processing area of CO2, solid-state lasers
or high-power diode lasers.
The device is suitable for measuring collimated laser beams as well as divergent and convergent laser beams.
Alignment guide
Sliding knob
LEDs
Shutter
Display

Tara/Fct button

Fig. 4.2:

4.3

Functional description

Measuring principle

The PM+ offers a fast, power measurement using the calorimetric measuring principle with active cooling.
The laser beam hits a deflection mirror in the device. This deflects the beam through an aperture and expands it so that it irradiates as much absorber surface as possible.
The total irradiated laser power is absorbed by a water-cooled absorber in the device. The absorbed power
is determined by measuring the cooling water flow rate and the temperature difference between water supply
and water return.
Based on the temperature rise and thermal properties of the absorber, the microprocessor-based electronics
are able to calculate the laser power with a high degree of accuracy.
Laser beam

Cooling water(supply flow)
Deflection
mirrorFig. 4.3:

Absorber withinside coating

Cooling water(return flow)

Measuring principle (schematic)

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Tara/Fct. button

The Tara/Fct. button has two functions:•

Tara function•

Switching between the screens of the display

4.4.1

Tara function

Pressing and holding the Tara/Fct. button (> 0.5 s) causes the current power value to be applied by the device
as an offset. The Tara screen (without illustration) is displayed for confirmation.
4.4.2

Switching between the screens of the display

Different information can be shown on the display.
By briefly pressing the Tara/Fct. button, you can cycle through the different screens.
4.5

Optical displays

4.5.1

LEDs

The LEDs indicate different states of the PM+.
LED

Color

Meaning

StatusGreen

Measurement running without errors.

Yellow

Warning message (see chapter 10.4.1 on page 51).

Flashes red

Error message. The safety interlock has been triggered. (see chapter 10.4.2 on page 52).

Power

White

Power supply is switched on.

Tab. 4.1:

Meaning of the LEDs

4.5.2

DisplaySix different screens can be shown on the display:
•

Start

•

Measurement•

Warning•

Status•Service•Tara (without illustration)

When the device is powered on, the Start screen is displayed for approx. 1 second.
Then the Measurement screen appears.
Briefly pressing the Tara/Fct. button scrolls to the next screen. Four screens can be cycled:
Measurement, Warning, Status and Service.

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The following information is displayed on the respective screen:Start•

the short name of the device•

the user-defined device name(this can be entered via the LDS)•

the serial number and set calibrated wavelength

Measurement•

the current laser power in Watt•the flow rate of the cooling water in l/min (Flow)•

the cooling water temperature Tin at the water supply (Water In) in °C•

the temperature difference Td between water supply (Water In) and water return(Water Out) in Kelvin

The PM+ monitors a wide variety of parameters. In case of deviating parameters, a warning triangle is displayed.
At the same time, the „Status“ LED lights up yellow or flashes red. For an explanation of the messages,
please refer to chapter 10.4 „Warning or error message on the display“ on page 51.
The Warning screen displays a symbol for the error messages listed below.
Usually, a warning is associated with an increased uncertainty of measurement.
Warning•

the cooling water flow is too low (V < 8.0 l/min)•the fluctuations of the flow rate of the cooling water are too high (>1,5 %)•the cooling water temperature at the water supply (Water In) is too low/high(Tin < 15 °C / > 30 °C)•

the temperature fluctuations at the water supply (Water In) are too high(> 1,0 K/min)•the temperature difference between the water supply (Water In) andthe water return (Water Out) is too high (Td > 35 K)

Without error “no warning” is displayed.
Status•IP-address or „USB“ when using USB operation•

the set calibrated wavelength•

The current tara value(this is 0 after switching on the device; it remains so until you have tared using theTara/Fct. button or set a value in the LDS)

Service•the date of the last calibration•

the hardware version: part number of the device•

the firmware-version: part number of the firmware•

the preset-version: part number of the device preset

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Explanation of the product safety labels and warning labels

Potential hazard areas are marked on the device with the product safety label “Do not reach inside” and2 warning labels:
Product safety label “Do not reach inside” and warning label “Do not touch the mirror surface”
Do not reach into the entrance aperture. Touching the deflection mirror underneath the shutter can lead to
localized absorption of the laser radiation at the points of contact, leading to burn marks and increased scattered radiation.
Observe the distance between the focus and the entrance aperture (see chapter 7.2.3 „Align the device“ onpage 20). Make sure the focus position does not lie on the deflection mirror and that the permitted power
density on the deflection mirror is not exceeded.
Warning label “Do not use compressed air”
The flow meter is damaged by the use of compressed air in the cooling circuit. Do not use compressed airfor emptying the cooling circuit.

Datum

Top view

Umlenkspiegel nicht berühren.
Do not touch the mirror surface.

Abstand zwischen Fokus undEintrittsöffnung einhalten
Observe correct distance between
focus and clear aperture

Name

Umlenkspiegel nicht berühren.
Do not touch the mirror surface.

Abstand zwischen Fokus undEintrittsöffnung einhalten
Observe correct distance between
focus and clear aperture

Close

Product safety label “Do not reach inside” and warning labels

14

1:1
104525Zeichnungsname:
Zeichnungsnummer:
Bearbeiter:
Erstellungsdatum:
Druckausführung:
Maßstab:
Artikel Nr.:

RED-Deckplatte
RED01A0004D
M.Werner
10.09.2021
einfarbig weiss

Index

Fig. 4.4:

ACHTUNG / NOTICEVerwenden Sie zum Entleeren des Kühlkreises
keine Druckluft.
Do not use compressed air for emptying thecooling circuit.
Datum: 27.09.21

ACHTUNG / NOTICEVerwenden Sie zum Entleeren des Kühlkreises
keine Druckluft.
Do not use compressed air for emptying thecooling circuit.

Geprüft von: V. Kast

OpenÄnderung

Front view

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Scope of delivery and optional accessories

The scope of delivery includes:•

PowerMonitor PM+ HP15•

USB flash drive•

Operating manual•

PRIMES power supply (24 V)•

USB cable (C to A connector), 2 m•

USB to Ethernet adapter•

Ethernet cable, 5 m•

Safety interlock cable•2 sealing plugs for cooling circuit (installed)

The following accessories are optional:•

Transport and storage case•

Fiber adapter(see Appendix C on page 63)•

Adapter plate for FocusMonitor FM+(see Appendix D on page 64)•

Adapter plate for FocusTracker FT(see Appendix E on page 66)

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Transport and storage
NOTICE
Damage/Destruction of the device
Hard hits or falls may damage the device.
Touching the deflection mirror underneath the shutter can lead to localized absorption of the laser
radiation at the points of contact, leading to burn marks and increased scattered radiation.
X Do not reach into the entrance aperture.
X Handle the device carefully when transporting it.

NOTICE
Damage/Destruction of the device caused by leaking or freezing cooling water
Leaking cooling water can damage the device. Transporting and storing the device at temperaturesnear or below freezing and without emptying the cooling circuit completely can damage the device.
X Empty the lines of the cooling circuit completely.
X Even when the lines of the cooling circuit have been emptied, a small amount of residual water willremain in the device at all times. This may leak out and end up inside the device. Close the connectors of the cooling circuit with the included sealing plugs.

NOTICE
Damage/Destruction of the flow meter
The flow meter is damaged by the use of compressed air in the cooling circuit.
X Do not use compressed air for emptying the cooling circuit.

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6

Software installation

6.1

Install LaserDiagnosticsSoftware LDS
The LDS is included in delivery. PRIMES will also be happy to provide you with a link to download
the current version. Please contact your sales partner or contact us bye-mail: support@primes.de1.

Please ensure:

System requirements:•

System requirements are met.

•

Intel Pentium Core i3 or better•

You have administrator rights.

•

Windows 10 (64-bit version)

2.

Close all programs on your PC.

•

At least 4 GB RAM; 8 GB RAM recommended

3.

Insert the PRIMES USB flash drive into your
PC and open the directory.
In the standard configuration, Windows
automatically opens the removable storage
device.

•Display resolution: Full HD (1 920 x 1 080) at 100 % scaling•

A USB port type A or Ethernet port for connecting the measuring
device4.

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

5.

Follow the instructions on the screen.

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

6.2

Set IP address of PC
The PC must be in the same IP address range as the PRIMES device.

Choose one of the following options to establish a connection between the PRIMES device and the PC. The
IP address of the PRIMES device can only be changed once this connection has been established(see chapter 9.4.1 on page 41, Section “Change IP address of a connected device”).
Integration of a PRIMES device into a network
Within the PRIMES device, the option DHCP (Dynamic Host Configuration Protocol) is activated by default.
The device obtains its IP address from the DHCP server.
Direct connection of a PRIMES device to a PC
In Windows > Control panel > Network and Sharing Center, assign an IP address to your PC that is in
the same address range as the PRIMES device (e.g. 192.168.116.xyz). The first three number blocks mustbe identical, the last number block (0-255) can be freely selected. The IP address should be entered by asystem administrator.
The static IP address of your PRIMES device is displayed in the status screen.

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Mounting

7.1

Conditions at the installation site

PowerMonitor PM+ HP15•

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 spray water and dust.

•

Operate the device in closed rooms only.

7.2

Installation in the laser system

7.2.1

Prepare mounting

1. Switch off the laser beam.
2. Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that they cannot be set in motion
unintentionally.
3. Check the space available before installing the device, especially the required space for the connection
cables and - hoses.
7.2.2

Possible mounting positions

Mounting position for a device with turbine
The PM+ can be mounted in any installation position.
Mounting position for a device with oval wheel meter
The PM+ can be mounted in the installation positions shown in Fig. 7.1 on page 19:•

Text on connector side the right way up, beam incidence from above•

Text on connector side upside down, beam incidence from below•

Connector side up, device vertical•

Connector side down, device vertical

The device must not be installed lying on its side.
For a continuous operation, the oval wheel meter axis has to be positioned horizontally.
For a short period of time (a few hours per year) the PM+ with oval wheel meter can be operated in
the “incorrect“ installation position without immediately causing damages to the device.
Longer operation periods, however, may cause accelerated war on the flow rate sensor.

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Fig. 7.1:

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Installation positions for a device with oval wheel meter

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Align the device

NOTICE
Damage/Destruction of the device
The deflection mirror can be damaged if the power density is too high.
X Make sure that the focus is not on the deflection mirror.
X Make sure that the permitted power density on the deflecting mirror is not exceeded.
The device must be aligned to the laser beam. The laser beam must hit the entrance aperture centrally andperpendicular. Please observe and adhere to the specifications and limit values given in chapter 14 „Technical data“ on page 58.
The reticle (alignment guide) printed on the shutter can be used to center the device under the laser. Alignthe device using the pilot beam with the shutter closed.
Use of the device with divergent laser radiation
Normally, the device is positioned underneath the focal plane of the beam path for power measurement.
Use of the device with convergent laser radiation
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 permitted power density on the deflection mirror is not exceeded.

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Observe the following (see chapter 14 „Technical data“ on page 58):•

the min./max. beam diameter of 20 - 24 mm at the entrance aperture•

the maximum power density at the deflection mirror as a function of the wavelength•

the maximum tolerance to the central beam incidence of ± 3 mm•

the min. divergence full angle of von – 50 mrad (convergent) /max. divergence full angle of + 160 mrad (divergent)•

the maximum angle of incidence perpendicular to the entrance aperture of ± 5°

Focusing optics

Focal plane

Beam axis
centered in entrance aperture

Min./max. beam diameter 20 - 24 mm

Fig. 7.2:

Alignment of the PM+ to the laser beam (schematic)

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Mount the device

DANGER
Serious injuries if the device falls down
If the device is not fastened securely, it may fall down.
X The secure fastening of the device according to the selected mounting position and the selection of
the screws with appropriate tightening torque or with claws must be carried out by the customer.

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 thelaser beam occurs during measuring operation (laser class 4).
X Mount the device so that it cannot be moved by an unintended push or a pull on the cables or hoses.

NOTICE
Damage/Destruction of the device
Fastening screws which are too long can damage internal components in the device.
X Do not use screws that protrude more than 8 mm into the housing.
The device offers two different options for mounting:
Mounting with screws
There are M6 mounting threads in the bottom and in the front side of the housing for mounting the device ona customer specific mount (red arrows).
X If necessary, remove the device feet. Mount the device in the mounting threads.
The fastening screws must not protrude into the housing by more than 8 mm.
Mounting with claws
There are recesses (blue arrows) in the mounting surface of the housing for mounting on a customer specificmount.
X If necessary, remove the device feet. Mount the device in the recesses.
Bottom viewFig. 7.3:

22

Rear view

Mounting options (dimensions in mm)
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Removal from the laser system

CAUTION
Eye and skin damage
If the cooling water hoses are disconnected while the water supply is on, high-pressure water may
be sprayed into the eyes.
X Turn off the water supply before disconnecting the cooling water hoses.

NOTICE
Damage/Destruction of the flow meter
The flow meter is damaged by the use of compressed air in the cooling circuit.
X Do not use compressed air for emptying the cooling circuit.
1. Switch off the laser beam.
2. Ensure that moving parts, e.g. robot arms, etc. are at a standstill and that they cannot be set in motion
unintentionally.
3. Close the shutter.
4. Switch off the power supply.
5. Turn off the water supply.
6. Push down the release ring of the water connector with two fingers of one hand and pull out the coolingwater hose with the other hand.
7. Empty the lines of the cooling circuit completely by tilting the device.
8. Seal the connectors with the sealing plugs supplied.
9. Disconnect all connections.
10. Unscrew the fastening screws or loosen the fastening claws.
11. Remove the device from the laser system.

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35,0(68Connectors

8.1

Overview of connectors

PowerMonitor PM+ HP15

USB port

Ethernet / PoE In
port

Safety interlock

Water supply(Water In)

PRIMES Universal
Connector (PUC)
Power supply(Power In)

Fig. 8.1:

24

Water return(Water Out)

Connectors on the PM+

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8.2

Power supply

The following ports can be used for the power supply of the device:•

Power In (with PRIMES power supply)•

PoE (Power over Ethernet)•

USB (with USB-C power supply - not included in delivery)•

USB (with cable to PC)

The device starts automatically after connecting the power supply. The initialization of the device takes about
1 minute. Do not remove cables during this time.
If the LaserDiagnosticsSoftware LDS is to be used for the measurement, a data connection to the PC/network
must be set up. One of the following connections can be used for data transmission:•

Ethernet•

USB

Connection options:Power supply

Data transmission

Chapter

Power Inwith PRIMES power supply

As stand-alone device(display on the device)

8.2.1 on page 26

USB

USB

8.2.2 on page 27

Power Inwith PRIMES power supply

USB

8.2.3 on page 28

Power over Ethernet

Ethernet

8.2.4 on page 29

USB with power supply(not included in delivery)

Ethernet

8.2.5 on page 30

Tab. 8.1:

Ethernet

Connection options

Combination of PoE for power supply and USB for data transmission not possible
Using PoE for power supply and USB for data transmission cannot be implemented in practice, since Ethernet
has priority over USB. The data would be sent via Ethernet, not USB.
UPS (uninterruptible power supply) is not possible with dual power supply
Power supplies can be connected in parallel. However, the second power supply can not be used as a UPS(uninterruptible power supply).
If the supply cable of the active power supply is removed, the data connection will be disconnected and theinterlock will be triggered. The device must be restarted.

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Power supply via PRIMES power supply
when used as a stand-alone device

Only use the provided PRIMES power supply.
•Power is supplied via the PRIMES power supply with 24 V ± 5 % (DC).

•The measured values are shown on the display of the device.

Required components (included in delivery)•

PRIMES power supply

Connecting the PM+
X Connect the PRIMES power supply according to Fig. 8.2 on page 26.

PRIMES power supply

Fig. 8.2:

26

Power supply via PRIMES power supply, display of the measured values on the device

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8.2.2

Power supply via USB connection
and communication with the PC via USB

Only use the provided USB connection cable.
•

Power is supplied via the USB cable on the PC with max. 5 V DC.

•

The data transfer is performed via the USB cable to the PC.

Required components (included in delivery)•

USB cable (C to A connector)

Connecting the PM+ to a PC
X Connect the cable according to Fig. 8.3 on page 27.

USB

Fig. 8.3:

Power supply via USB, data transfer via USB

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Power supply via PRIMES power supply
and communication with the PC via USB or Ethernet

Only use the PRIMES power supply and the provided cables.
•

Power is supplied via the PRIMES power supply with 24 V ± 5 % (DC).

•The data transfer is performed via the USB or Ethernet cable.

Required components (included in delivery)•

PRIMES power supply•

USB cable (C to A connector)•

Ethernet cable

Connecting the PM+ to a PC
X Connect the PRIMES power supply and the cable according to Fig. 8.4 on page 28 an.

or

USB

or

Ethernet

PRIMES power supply
orFig. 8.4:

28

LANPower supply via PRIMES power supply, data transfer via USB or Ethernet

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8.2.4

Power supply via Power over Ethernet
and communication with the PC via Ethernet

With the PoE port, the power supply with max. 24 V can be set up in 2 ways:•

with a PoE injector (midspan device)•with a PoE capable Ethernet port e.g. on a switch (endspan device).

Required components
Included in delivery:•

Ethernet cableNot included in delivery:•

PoE Injector (Midspan Device)•

Second Ethernet cable on PoE injector

Connecting the PM+ to a PC
X Connect the cables according to Fig. 8.5 on page 29.
The device will not start if the two plugs on the PoE injector are reversed.

PoE Injector

orEthernet
PoE

orFig. 8.5:

LAN

LAN with PoE Port

Power supply and data transfer via PoE In

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Power supply via USB-C power supply
and communication with the PC via Ethernet•

Power is supplied via the USB-C power supply (not included in delivery) with max. 20 V DC.

•

The data transfer is performed via the Ethernet cable.

Required components
Included in delivery:•

Ethernet cableNot included in delivery:•

USB-C power supply

Connecting the PM+ to a PC
X Connect the power supply according to Fig. 8.6 on page 30.

USB-C
power supplyor

Ethernet

orFig. 8.6:

8.3

LAN

Power supply via USB-C power supply, data transmission via Ethernet

Power InThe connector socket for the power supply is a 5-pin, L-coded M12 connector.
This connector is used for power supply with the PRIMES power supply.
Harting M12-P-PCB-THR-2PC-5P-LCOD-M-STR
3

2

4

1

Pin

Function1+24 V ± 5 % (DC)2

Not connected

3

GND

4

Not connected5

FE (functional earth)FE
Tab. 8.2:

30

Power In connector socket for the PRIMES power supply

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Ethernet/PoE In

The PoE port is specified according to PoE standard IEEE 802.3af (802.3at Type1)
Power Class 3 (Mid Power, 12.95 W).
This port can be used as an Ethernet or as a Power-over-Ethernet port:•

Ethernet port: The port can only be used for data transmission.

•

PoE In port: The port can be used for power supply and data transmission via Power over Ethernet.

8.5

USB

USB port: connection type USB-C; version USB 2.0.
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.
The Windows driver usbser.sys is used. It is part of the driver packages included in Windows.
If a PM+ is connected to a PC for the first time, this driver is automatically activated and the following message
appears:

Next:

From then on, every time such a device is connected, it will appear in the Device Manager as „USB Serial
Device (COMxx)“.

The driver is set up for the device as soon as the USB connector is used, even if this is only for the purposeof supplying power.
8.6

PRIMES Universal Connector (PUC)

The port serves as a PRIMES service interface.

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Safety interlock (Interlock)Connect the safety interlock of the laser control so that the laser is switched off in the event of faulty operating
conditions. The device has two redundant safety circuits internally.

DANGER
Fire hazard; Damage/Destruction of the device
If the safety interlock is not connected, the operating conditions of the device are not monitored.
X Connect the safety interlock of the laser control so that the laser is switched off in the event offaulty operating conditions.
X Check that the safety interlock will switch off the laser properly in case of error.
Monitored operating conditions
The safety interlock protects the device by switching off the laser beam in the following cases:•

the cooling water flow is too low (Flow < 6.0 l/min)•the cooling water temperature at the water supply (Water In) is too high (Tin > 40 °C)•

the temperature difference between water supply (Water In) and water return (Water Out) is too large(Td > 40 K)•

the permissible temperature at the absorber of 70 °C is exceeded•

the shutter is not (completely) open

Pin assignment at + 24 V
Connect the safety interlock of the laser control so that the laser is switched off in the event of faulty operating
conditions.
If the safety interlock is triggered, pin 1 and pin 2 (pin 4 and pin 5) are connected.
If the values correspond to the operating conditions, pin 1 and pin 3 (pin 4 and pin 6) are connected.

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Pin assignment M8 connector 12-pin (Pin assignment: view on device; Color: wire color of cable)

male

Pin

Color

Function

1

Brown

COM 1

2

Blue

NC: Connected with pin 1 in faulty operating conditions.

3

White

NO: Connected with pin 1 when ready for operation.

4

Green

COM 2

5

Pink

NC: Connected with pin 4 in faulty operating conditions.

6

Yellow

NO: Connected with pin 4 when ready for operation.

7

Black

+ 24 V externally (DC)

8

Grey

Ground for + 24 V externally (PIN 7)

9Red

Not connected10

PurpleNot connected

11

Grey-Pink

Not connected

12

Red-BlueNot connected

Suitable ready-made cable: Binder 79-3808-52-12
Tab. 8.3:

Pin assignment of the safety interlock connector
Interlock conditions 1

Fig. 8.7:+ 24 V

7

GND

8

Interlock conditions 2

2

NC

COM 1

1

3

NO

COM 2

4

5
6

NC
NO

Circuit diagram: Monitored operating conditions (Interlock conditions )Device not ready for operation, Laser is off

Pin 7 and 8 must be connected for the interlock circuit to be active.
If the cable socket is not connected and the safety interlock is thus not active, a warning message
in the LaserDiagnosticsSoftware LDS is issued.
Required component
A suitable connection cable with a device plug and free ends is included in the delivery.

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Cooling circuit (Water In/Water Out)DANGER
Fire hazard due to overheating of the device
If there is no water cooling or insufficient water flow, the device will heat up and may catch fire.
X Operate the device only with a connected water cooling system and a sufficient flow rate.

CAUTION
Eye and skin damage
If the cooling water hoses are disconnected while the water supply is on, high-pressure water may
be sprayed into the eyes.
X Turn off the water supply before disconnecting the cooling water hoses.

8.8.1

Connect/remove cooling water hoses

The water connectors are sealed with plugs to prevent residual water from leaking out.
Release ring

1. Push1.

Push down the release ring of the hose connector with two
fingers of one hand and pull out the sealing plug with theother hand.

2.

Keep the sealing plugs for later transport or shipment.

Connect cooling water hoses
1.

Connect the supply hose (Water in) and the return hose (Waterout) by pushing the cooling water hoses into the hose connectors as far as they will go (approx. 2 cm).

2.

Check whether the hose connections are tight.

2. PullRemove cooling water hoses

Fig. 8.8:

8.8.2

1.

Push down the release ring of the hose connector with two
fingers of one hand.

2.

Pull out the cooling water hose with the other hand.

Connect/remove cooling water hoses

Damage to the device

NOTICE
Damage/Destruction of the device
If the following requirements for the cooling circuit are not observed, the measuring device may bedamaged.
X Observe the following requirements.
Water quality
The device can be operated with tap water as well as demineralized water.
An operation with strongly deionized water (DI-water, conductivity < 30 µS/cm) is only possible with appropriate
connection parts (stainless steel) – we will be glad to advise you as necessary.

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No dirt particles/fibrous sealants
When sealing the external thread with fibrous sealant (e.g. hemp or teflon tape, make sure that no sealantresidue gets into the flow.
Large dirt particles or fibrous sealants may block internal cooling circuits. Therefore, please rinse the systemthoroughly before connecting it.
Aluminum components
Do not operate the device on a cooling circuit in which aluminum components are installed.
Otherwise, corrosion in the cooling circuit can occur, particularly when operating at high powers and power
densities. In the long term, this will reduce the efficiency of the cooling circuit.
Condensates within the device

40

100

35

80
70
60

30

50
25

40

20

30

15

20

Relative humidity in %Cooling water temperature in °C

The device must not be operated in a condensing atmosphere. Check the environmental humidity levels toprevent condensates within and outside the device.

10
5
10

0
0

Tab. 8.4:

5

10

15
20
25
30
Air temperature in °C

35

40

Dew point diagram: The temperature of the cooling water must not be lower than the dew point

Example:Air temperature:		

22 °C

Relative humidity:

60 %The cooling water temperature must not fall below 14 °C.
8.8.3

Avoid measurement inaccuracies

Antifreeze and additives
The heat capacity is one of the key parameters that is used in order to calculate the laser power. Therefore,
do not operate the unit in a cooling circuit that contains antifreeze (or only after consultation with PRIMES).
Other additives - such as biocides and corrosion inhibitors - may be added to the cooling water up to a
maximum concentration of 1 %.

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Temperature fluctuations of the cooling water
It is important that the temperature of the inflowing water remains constant. The fluctuation of the temperature should not exceed 1 K per minute or 0.08 K per 5 seconds.
Observe the temperature display for the incoming water.
You can also observe the power display for approx. 1 minute without a laser. The fluctuations give a firstindication of the influence of the temperature fluctuations due to the chiller.
Gas bubbles in the cooling waterGas bubbles in the cooling water can lead to measurement inaccuracies.
8.8.4

Damage to the flow meter

NOTICE
Damage/Destruction to the flow meter
The device uses a turbine or an oval wheel meter for flow measurement. This can be damaged by
improper handling.
X Observe the following requirements.

Observe installation position (only with oval wheel meter)
The oval wheel axes of the oval wheel meter must be horizontal. Therefore, observe the mounting position of
the device specified in chapter 7.2.2 „Possible mounting positions“ on page 18.
Observe flow direction
Swapping of flow direction may cause damage or destruction of the flow meter. A reversed flow direction canbe identified by the fact that no flow is displayed on the device or the displayed laser power in the LDS has anegative prefix.
Do not use compressed air
The flow meter is damaged by the use of compressed air in the cooling circuit. Do not use compressed airfor emptying the cooling circuit.
Prevent freezing
Freezing of the cooling water must be prevented at any time by suitable precautions.
Limit cooling time
Only cool the device during measurements. PRIMES recommends starting the cooling approx. 2 minutes
before the measurement and ending it approx. 1 minute after the measurement. The operating time has an
influence on the service life of the flow meter.
No metal shavings/rust particles
There must not be any metal shavings/rust particles in the cooling water. The flow meter installed in the device is magnetic and attracts the metal shavings. This can lead to a build-up of debris and thus to measurement inaccuracies up to destruction of the flow meter.

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8.8.5

Parameters of cooling water connection

Supply data

PM+ HP15

Hose diameter

16 mm

Min. cooling water flow (recommendation)

0,7 l/min/kW

Min. cooling water flow (warning threshold)

8 l/minMin. cooling water flow (interlock threshold)

6 l/minMax. cooling water flow

25 l/minMin. cooling water pressure

2 barMax. cooling water pressure

6 bar

Cooling water temperature Tin

Dew point temperature < Tin < 30 °C

Stability of the cooling water temperature< 1.0 K per minute or 0.08 K per 5 seconds

Tab. 8.5:

Parameters of cooling water connection

Recommended flow rate
The minimum flow rate should be set to a value 0.7 l/min per kW laser power.
The following rule of thumb can be used to determine the flow rate - depending on the laser power used:
For each kW of laser power, a flow rate of approx. 1 l/min of cooling water is recommended.
Example:With a laser power of 10 kW, this corresponds to a flow rate of 10 l/min.
In any case, the flow rate must be within the range of the limit values specified in Tab. 8.5 on page 37!
Temperature increase of the cooling water
The temperature increase of the cooling water as a function of the laser power and the flow rate is calculated
as follows:
Temperature increase:∆ T [K]

Laser power used:

P [kW]

Flow rate: 		Q [l/min]Formula 8.1: Calculation of the temperature increase of the cooling water
as a function of the laser power and the flow rate

Example:At 7 kW laser power and a flow rate of 9.5 l/min, the temperature of the cooling water increases by 10.5 °C.

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Pressure loss

Usually, a primary pressure of 2 bar at the water supply (Water In) of the device (with unpressurised outlet) issufficient to ensure the necessary flow rate.
With the following diagram, the minimum pressure required at the cooling water supply (Water In) of the unit
can be determined.

66

Pressuredifferencein∆pbar
in barDruckdifferenz

55
44
33
22
11
00

00

55

10
10

Flow rate Q in l/min

15
15

20
20

25
25

Durchfluss in l/min

Tab. 8.6:

38

Pressure loss diagram PM+ HP15

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9Measuring

9.1

Warning messages

35,0(6DANGER
Serious eye or skin injury due to laser radiation
During the measurement the laser beam is guided on the device. This causes scattered or directedreflection of the laser beam (laser class 4).
The device must not be operated without taking the following precautions.
X Before switching on the laser, open the shutter of the device.
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).

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 thelaser beam occurs during measuring operation (laser class 4).
X Mount the device so that it cannot be moved by an unintended push or a pull on the cables or hoses.

DANGER
Fire hazard; Damage/Destruction of the device
If the safety interlock is not connected, the operating conditions of the device are not monitored.
X Connect the safety interlock of the laser control so that the laser is switched off in the event offaulty operating conditions.
X Check that the safety interlock will switch off the laser properly in case of error.

NOTICE
Damage/Destruction of the device
The deflection mirror can be damaged if the power density is too high.
X Make sure the focus does not reside on the deflection mirror.
X Make sure that the permitted power density on the deflecting mirror is not exceeded.

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Preparing measurement readiness

1. Observe the warning messages according to chapter 9.1 on page 39.
2. Connect the safety interlock of the laser control to the device.
3. Connect the device to the power supply.
The white LED (Power) must light up.
Wait until the display lights up.
The LED (Status) flashes red after a short time.
4. Turn on the water cooling.
After a few seconds, the red LED (Status) must turn off.
After approx. 2 minutes, the device temperature and the cooling water temperature are in equilibrium.
5. Check that the safety interlock will switch off the laser properly in case of an error.
x The PM+ is ready for measurement.
9.3

Measuring with the PM+ as a stand-alone device

With the PM+ you can also measure without a PC. The measured values are shown in the display of the device.
The display shows the following measured values:
Display

Meaning
Laser power in W

Flow

Flow rate of the cooling water in l/min

Tin

Cooling water temperature at the water supply (Water In) in °C

Td

Temperature difference between water supply (Water In) and water return(Water Out) in Kelvin

Tab. 9.1:

Meaning of the abbreviations in the display

Get ready for measurement
1. Prepare the device according to chapter 9.2 „Preparing measurement readiness“ on page 40.
Determine zero level
With the Tara/Fct. button you can reset the measured value in the display to zero. We recommend the following
procedure before each measurement:
2. Press the Tara/Fct. button (> 0.5 s) until the measured value in the display is reset to zero.
Start measurement
3. Open the shutter completely.
4. Switch on the laser.
x The measured laser power is displayed after about 2 seconds.
After about 20 seconds the display reaches about 99 % of the final value.
5. Switch off the laser.
6. Close the shutter completely.

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9.4

Measuring with the LaserDiagnosticsSoftware LDS

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 the separate operating manual “LDS”.
9.4.1

Connect/disconnect the device with the LDS

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

Prepare the device according to chapter 9.2 „Preparing measurement readiness“ on page 40.

2.

Start the LDS by double-clicking on the program iconin the start menu group or on the desktop icon.

The start screen appears.
3.

Select the operating mode Measure.

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

Click the Devices tab and then on the+ Connect to device button.

The Connections window appears.
4.

Click on the desired device.

5.

Click the Connect to device button.

If the device does not appear whenconnected to USB:
X

Click the Search for PRIMES USB
button.

If the device does not appear whenconnected to Ethernet:
X

Click the Search the network button.

If the device still does not appear in theConnections window, see chapter 10.2
„Connection errors when using the LDS“on page 50.

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Change IP address of a connected device
Within the device a static IP address is stored and the function Use DHCP is activated. When establishing aconnection, the device will first wait to be assigned a suitable IP address via DHCP. If this proofs unsuccessful,it will revert to the static IP address.
If Use DHCP is disabled, the device will directly use the static IP address. As a result, the connection can beestablished faster.
For a connected device, both the IP address and the activation of DHCP can be changed.
Change the IP address of a device asfollows:
1.

Click the Devices tab.

2.

Right-click on the device and selectthe Device settings menu point.

3.

Enter the desired IP address in theStatic IP address input field.

4.

Deactivate Use DHCP.

5.

Confirm the entry with OK.

The Confirmation window appears.
6.

In the Confirmation window, placea check mark at Acknowledge andclick OK.

7.

Switch the device off and on again.

If the PRIMES device is connected directly to a PC (without network), the IP address of the PRIMES
device and that of the PC must be in the same address range. If a static IP address is selected thatis outside the address range of the PC and DHCP is also deactivated, the device can no longer be
addressed.
To reconnect to the PRIMES device, the IP address of the PC must be changed (see chapter 6.2„Set IP address of PC“ on page 17). Both devices have to be in the same address range.
The static IP address of your PRIMES device is displayed in the status screen.

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Disconnect from the LDS and switch off the device
1.

Click the Devices tab.

2.

Right-click on the device and selectthe Disconnect menu point.

x

The device is disconnected from the
LDS.

3.

Switch off the power supply bydisconnecting the cable.

4.

If applicable, disconnect the electricalconnections.

9.4.2

General information about working with the LDSEnter user-defined device name
If you want to assign a user-defined devicename to a device, proceed as follows:
1.

Click the Devices tab.

2.

Right-click on the device and selectthe Device settings menu point.

3.

Enter the desired device name in the
Device name input field(max. 18 characters).

4.

In the Device settings window, confirm
the entry with OK.

The Confirmation window appears.
5.

Place a check mark at Acknowledge
and click OK.

6.

Switch the device off and on again.

x The device name is displayed in theConnections window.
x After connecting, the device name isdisplayed in the Devices tab.

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35,0(6PowerMonitor PM+ HP15Enter parameters and activate
Confirm an entered parameter value bypressing the Enter key.
1.

Enter the desired value in the input
field.

Example: blue input field

The background color of the input
field changes to blue.
2.

Confirm the entry by pressing theEnter key.
The field returns to its original
background color.

Saving options
The LDS offers 2 different options for saving. They differ by the storage location.
Save data with asterisk (*) to a file /load from a file:All data marked with an asterisk in the
Device control menu can be saved to apreset file with the extension .pre on thePC.
X

To save a configuration,
click the icon.

X

To load a configuration,
click the icon.

Save data with an asterisk (*) in the
EEPROM of the device:
All options marked with an asterisk in the
Device control menu can be saved in the
EEPROM in the device.
In this case, the settings will be retainedeven if the device is switched off or disconnected from the power supply.
X

44

Click the Save device settings button.

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Open power measurement mode
The PM+ is displayed as a connected
device.

1.

Click on the connected device.

The corresponding Device control
opens.
The Power Measurement toolbench
opens.

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Perform power measurement

Settings in the device control
OptionExplanation

Measurement duration in min

XEnter a value in the input field.

Without input, the power is measured permanently.
Measurement frequency in Hz

X

Enter a value in the input field.

The value must be between ≥ 0.1 Hz and ≤ 3 Hz.
Calibrated wavelength(s) in nm

The PM+ can measure the laser power of lasers with the following wavelength
ranges:450 nm, 515 - 532 nm, 800 – 1 100 nm, 10 600 nm
The calibrated wavelengths of 1 064 nm (included) or 515 nm, 10 600 nm (optional)
can be selected.
1.

Select the Calibrated wavelength(s) in nm from the drop-down list.

2.

Click the Save device settings button.

The absorption behavior of the absorber is wavelength-dependent. By selecting
the appropriate calibrated wavelength, the measurement accuracy is improved.
Used wavelength in nm

The entry is only for documentation purposes. Use one of the following options:
X

Enter a value in the input field.

X

Use the slider below the input field.

Device offset in W

The offset value (tara) shown in the display of the device is displayed.

Manual offset in W

X

Enter a value in the input field.

The offset value must be between > (–300 W) and < (+1 000 W).
The offset value is only taken into account in the LDS.
X

Click Send.

The entered manual offset value is added to the offset value stored in the device.
Determine TaraX

Click Determine Tara.

The offset value is determined and set in the LDS.
X

Click Send.

The offset value stored in the device is overwritten.
Reset Tara

The offset value is reset in the LDS and on the device.

Lock Tare/Fct. button

X

Activate the check mark.

The Tara/Fct. button on the device is locked.
Display contrast device

1.

Enter a value in the input field.

The value must be between > 0.000 and < 1.000.
2.

Click the Save device settings button.

The value remains even after restarting the device or without using the LDS.
Tab. 9.2:

46

Settings in the device control

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Determine device offset (Tara)To determine the device offset, the device
must go through a thermalization time.
1.

Run the cooling water for approx.
2 minutes.

x After approx. 2 minutes, the device
temperature and the temperature of
the cooling water are in equilibrium.
2.

With the laser turned off, click Start.

3.

Click Determine Tara.

x The offset value is determined andstored in the LDS.
The display of the laser power is
automatically corrected with the stored
offset value.
4.

Click Send.

x The offset value stored in the device isoverwritten.
Alternatively, the device offset can also beentered by pressing the Tara/Fct. button
for more than 0,5 s.

Start measurement
1.

Observe the warning messages
according to chapter 9.1 on
page 39.

2.

Open the shutter completely.

3.

Switch on the laser.

4.

Click the Start button.
The progress of the measurement isdisplayed.

5.

If you have not entered a measuring
duration, click the Stop button.

x The measurement is finished.
6.

Switch off the laser.

7.

Close the shutter completely.

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Measurement results display
The measurement results are shown during the measurement in the opened Power Measurement tool.
The displayed parameters can be adjusted by clicking the gear icon
. For example, Advanced view.
The view changes to an extended display of the measured parameters.
A detailed description of the tools and the assessment of the measuring results can be found in the separate
operating manual for the LDS.

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10

Troubleshooting

10.1

Messages in the LDS during measurement35,0(6

If problems occur during a measurement, the LDS displays them in different categories and different colors.
Note
Notes provide assistance in interpreting the measurement
results and are displayed in a blue 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 the same category.

X

Click the Confirm button to remove the displayed message.

Warning
Non-safety-critical problems that influence the quality of themeasurement results, for example, 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 the same category.

X

Click the Confirm button to remove the displayed message.

Device error
Device errors that can result in damage of the device are displayedin an orange window.
In this case, proceed as follows:1.

Fix the problem.

2.

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

3.

Do not proceed with the measurement until the problem issolved.

Safety critical note
Safety-critical problems that can result in damage/destructionof 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 the message.
The message disappears. If the problem is not fixed, thenthe message appears again shortly afterwards.

3.

Do not proceed with the measurement until the problem issolved.

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10.2

Connection errors when using the LDS

10.2.1

Ethernet connection errors

Error

Possible cause

Solution

The Ethernet connection between thedevice and the LDS
cannot be established.

The firewall may block the connection between the device andthe LDS.

X

The IP address of the PC is notwithin the range of the device.

X

In Windows > Control panel > Firewall, enable
the UDP port 20034.

The UDP port should be enabled by a system administrator.
In Windows > Control panel > Network andSharing Center, assign an IP address to the PC
that is in the same address range as the PRIMES
device (e.g. 192.168.116.xyz).
The IP address of the PRIMES device can be foundon the identification plate.

The IP address should be set by a system administrator.
If several network cards or aUSB3-to-Ethernet card are installed in the PC, the connection
between device and LDS may beblocked by the selection of thewrong network card.
Tab. 10.1:

10.2.2

1.

Select the appropriate network card in the Connections > All window.
The device is displayed in the Connections window

2.

Click on the device.

3.

Click the Connect to device button.

Ethernet connection errors

USB connection errors

Error

Possible cause

Solution

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

No USB connection has been
established.

X

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

The device does notturn on when connected to the PC via
USB.

The USB interface on the PC
cannot supply the PM+ with sufficient power.

X

Connect the PRIMES power supply according tochapter 8.2.3 on page 28.

Tab. 10.2:

10.3

USB connection errors

Red flashing status LED without an error message on the display

If the status LED flashes red and no warning triangle is shown in the display, then:•either the shutter is not completely open or•

the temperature at the absorber is too high (> 70°C).

The safety interlock has been triggered.

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10.4

Warning or error message on the display

Display of a warning or error message
A warning triangle is displayed in the measurement screen. At the same time, thestatus LED lights up/flashes.
The possible cause is shown in the warning screen (change screen by briefly pressing
the Tara/Fct. button).
Warning message
The status LED lights up yellow.
Error message
The safety interlock has been triggered.
The status LED flashes red.

10.4.1

Warning message (status LED lights up yellow)

Display

Possible cause

Solution

The cooling water flow is too low(V < 8.0 l/min).

Increase the flow rate.

The fluctuations of the flow rateof the cooling water are too high(> 1,5 %).

Read the power value when the fluctuations have decreased.

The cooling water temperature at
the water supply (Water In) is toolow (Tin < 15 °C).

Increase the temperature of the cooling water or use a
different cooling system.

The cooling water temperature at
the water supply (Water in) is toohigh (Tin > 30 °C).

Check the cooling system.

The temperature fluctuations at
the water supply (Water In) are
too high (> 1,0 K/min).

High temperature fluctuations increase the measurement uncertainty of the device. Read the power value
when the temperature fluctuations have decreased.

or

There is a risk that the device is overheating.

Check the pump. There should be no air bubbles in thecooling water.

There is a risk that the device will be damaged by condensation water.

There is a risk that the device is overheating.

Generally, a large volume of water in the cooling circuit
ensures a small gradient (increase water tank volume).
The temperature difference between the water supply (Water In)
and the water return (Water Out)is too high (Td > 35 K).

Increase the flow rate or reduce laser power.
There is a risk that the absorber is overheating.

Without error “no warning” is displayed.
Tab. 10.3:

Warning messages (status LED lights up yellow)

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PowerMonitor PM+ HP15

Error message (status LED flashes red)

The safety interlock has been triggered.
Display

Possible cause

Solution

The cooling water flow is too low(V < 6.0 l/min).

Check the cooling circuit and the direction of the waterflow through the device.
Reduce the power or increase the flow rate.
There is a risk of damage to the device.

Tab. 10.4:

10.5

The cooling water temperature at
the water supply (Water In) is toohigh (Tin > 40 °C).

Check the cooling system.

The temperature difference
between water supply (Water In)
and water return (Water Out) is
too high Td > 40 K).

Check the laser power.

There is a risk that the device is overheating.

Reduce the power or increase the flow rate.
There is a risk of damage to the device.

Error messages (status LED flashes red)

Other errors

Error

Possible cause

Solution

The device shows noflow.

The flow direction has been
reversed.

Reversing the direction of flow will damage/destroy theflow meter during longer operation.

The displayed laser
power in the LDS has
a negative prefix.
Tab. 10.5:

52

X

Connect the water supply (Water In) and the water
return (Water out) according to the markings on thedevice.

Other errors

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11

Maintenance and service

11.1

Maintenance intervals

35,0(6The operator is responsible for determining the maintenance intervals of the measuring device.
PRIMES recommends a maintenance interval of 12 months for inspection and calibration.
If the device is used sporadically (less than once a day), the maintenance interval can be extended up to
24 months.
Please note that the safety and warning functions of the device must be checked regularly.
11.2

Cleaning the device surface

1. After a measurement let the device cool down for an adequate period of time.
2. Clean the device surface with clean and oil-free compressed air.
3. Close all device openings.
4. 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.
5. If these steps are not sufficient, please contact PRIMES or your PRIMES distributor.

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PowerMonitor PM+ HP15

Clean/replace sieve in the water filter

NOTICE
Damage/Destruction of the device
If the fastening screw of the water filter is not countered, the cooling water hoses in the unit may
be twisted and damaged. This can cause cooling water to leak into the device.
X When opening the water filter cap (AF 23), counter the fastening screw with a wrench (AF 32).

Fig. 11.1:

Removing the side panel (Side view right)

1. Place the device on its bottom side (shutter faces upwards).
2. Unscrew the 2 fixing screws on the right side of the housing (red arrows).
3. Carefully slide the side panel in the direction of the blue arrow to remove it.
4. Counter the fastening screw (AF 32) and unscrew the the water filter cap (AF 23).
5. Remove the sieve.
6. Clean or replace the sieve. (Replacement sieve: Order number 160-015-040)
7. Put the sieve back in place.
8. Counter the fastening screw (AF 32) and screw in the water filter cap (AF 23).
Do not overtighten the water filter cap.
9. Place the side panel in the guide rails and push it back into the housing as far as it will go.
10. Check that the side panel is securely seated. The side panel must lie against the housing without gaps.
11. Screw in the 2 fixing screws and tighten them slightly.

Fastening screw(AF 32)
Water filter with
sieve
Water filter cap(AF 23)Fig. 11.2:

54

Unscrew the cap of the water filter

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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 national laws. The WEEE directive obliges the operatingcompany to dispose of the device in an environmentally sound manner, not with household waste, but in a
separate WEEE collection.
PRIMES gives the opportunity to return PRIMES measuring devices for free disposal within the scope of the
Waste of Electrical and Electronic Equipment (WEEE Directive). This service does not include shipping costs.
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 procedurefor 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.

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Declaration of conformity

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Technical data

Measurement parameters

PM+ HP15

Max. power range

0,8 – 15 kW

Laser typeContinuous (cw)
For pulsed lasers, please contact PRIMES.

Wavelength range

450 nm, 515 – 532 nm, 800 – 1 100 nm, 10 600 nm

Max. power density at wavelength

450 nm, 515 – 532 nm

10 kW/cm²

800 – 1 100 nm, 10 600 nm

15 kW/cm²

Device parameters
Entrance aperture

48 mmMin./max. beam diameter 1)

20/24 mmMax. centered tolerance 1)± 3 mmMin. divergence full angle (convergent)Max. divergence full angle (divergent) 1)– 50 mrad+ 160 mrad

Max. angle of incidence perpendicular to entrance aperture 1)± 5°

Accuracy at wavelength

450 nm, 515 – 532 nm± 2.5 %

800 – 1 100 nm, 10 600 nm± 2.0 %

Reproducibility±1%Time constant

20 s up to 99 % of final value

1)

All specifications apply to the respective maximum values.

Supply data
Power supply, DC

Cooling water

58

PRIMES power supply

24 V ± 5 %, max. 0,5 A

Power over Ethernet(Standard IEEE 802.3af(802.3at Type1), Power class 3)

24 V

USB
(Type USB-C,Version USB 2.0)

USB-C connection to PC: max. 5 V DC

Hose diameter

16 mm

Min. cooling water flow
(recommendation)

0,7 l/min/kW

Min. cooling water flow
(warning threshold)

8 l/minMin. cooling water flow
(interlock threshold)

6 l/minMax. cooling water flow

25 l/minMin. cooling water pressure

2 barMax. cooling water pressure

6 bar

Cooling water temperature Tin

Dew point temperature < Tin < 30 °C

Stability of the cooling water temperature< 1.0 K per minute or 0.08 K per 5 seconds

USB-C power supply (not included in delivery):max. 20 V DC

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Communication
Interfaces

Ethernet/PoE, USB-C/Interlock

Dimensions and Weights
Dimensions (L x W x H)
with connectors and shutter knob without device feet

375 x 180 ×190 mm

Weight (approx.)

12 kg

Environmental conditions
Operating temperature range

15 – 40 °C

Storage temperature range

5 – 50 °C

Reference temperature

22 °C

Relative air humidity (non condensing)

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Dimensions
Bottom view

Front view

Rear view

Top view

Dimensions in mm

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Laser beam
Side view left

Side view rightDimensions in mm

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16

AppendixA

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 thefollowing websites:•

https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html•

https://www.gnu.org/licenses/licenses.en.html

B

Diagram for determining the max. laser power

B.1

Max. laser power depending on the beam diameter for collimated laser beams
16

Maximum laser power in kW

14
12
10
8
6
4
2
0

5

10

15

20

25

Beam diameter in mm

62

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Fiber adapter

For detailed information on the available fiber adapters, please contact PRIMES or your PRIMES distributor.
The fiber adapter allows a fibre end to be connected directly to the PM+ for measurement. The following fiber
adapters are available:
Device type

Fiber adapter type

Order number

PowerMonitor PM+ HP15

Fiber adapter for LLK-B

130-006-006

Fiber adapter for LLK-D

130-006-007

Fiber adapter for QBH

130-006-009

Tab. C.1:

Fiber adapter types

Fiber adapter

Mounting block 2

Mounting block 1
Protective window
Protective window mountFig. C.1:

Fiber adapter

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D

Parallel operation of the PM+ HP15 with a FocusMonitor FM+

D.1

Mount devices

Mount the FM+ to the PM+ using the adapter plate. The devices are aligned with each other by 2 dowel pins.
1. Disassemble the sliding knob on the shutter of the PM+.
2. Insert 2 dowel pins into the adapter plate.
3. Mount the adapter plate to the PM+ with 4 cylinder head screws.
4. Mount the angle plate to the shutter using 2 countersunk screws.
5. Mount the sliding knob to the angle plate using 2 countersunk screws.
6. Mount the FM+ to the adapter plate using 4 cylinder head screws.

Sliding knob

Angle plate

Adapter plate

ShutterFig. D.1:

64

Mounting the FM+ on the PM+

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D.2

Connect devices

1. Connect the FM+ to the PC via Ethernet.
2. Connect the PRIMES power supply to the FM+.
3. Connect the PM+ to the PC via Ethernet/Power over Ethernet (PoE In) or
via the USB-C interface to the PC.

PRIMES power supply

Ethernet
Ethernet

USB

LAN with PoE Port

Ethernet/PoE In
or
USB-C

Fig. D.2:

Connecting the FocusMonitor FM+ with the PowerMonitor PM+

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E

Parallel operation of the PM+ HP15 with a FocusTracker FT

E.1

Mount devices

Mount the FT with the adapter plate to the PM+.
1. Open the shutter with the slide knob.
2. Mount the adapter plate to the PM+ with 4 cylinder head screws.
3. Position the FT on the adapter plate so that the entrance apertures of the FT and the PM+ are aligned.
4. Place the 4 rectangular washers in the recesses for the mounting claws.
5. Screw the FT to the adapter plate with 4 cylinder head screws.

Rectangular washer

Recesses for
mounting claws

Adapter plate

Slide knob

Fig. E.1:

66

Mounting the FT on the PM+

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E.2

Connect devices

1. Connect the FT to the PC via Ethernet (RJ 45)/Power over Ethernet to the PC.
2. Connect the PM+ to the PC via Power over Ethernet (PoE In) or
via the USB-C interface to the PC.

Ethernet RJ45
Ethernet

USB

LAN with PoE Port

Ethernet/PoE In
or
USB-C

Fig. E.2:

Connecting the FocusTracker FT with the PowerMonitor PM+

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