Power supply via USB or PRIMES power supply and communication with the PC via USB ..............31 7.2.3 Power supply via PRIMES power supply and communication with the PC via PRIMES converter ..........32 PRIMES bus RS485 ........................34 USB ............................34 7.4.1 Specification ......................34 7.4.2...
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CompactPowerMonitor CPM 7.7.4 Damage to the flow meter ..................40 7.7.5 Parameters of cooling water connection ..............41 7.7.6 Pressure loss ......................42 Software installation Install LaserDiagnosticsSoftware LDS..................44 Install PowerMonitorSoftware PMS ..................45 Measuring Warning messages ........................46 Preparing measurement readiness ..................47 Measuring with the CPM as a stand-alone device ..............47 Measuring with the LaserDiagnosticsSoftware LDS ..............48 9.4.1 Connect/disconnect the device with the LDS ............48...
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Diagrams of the max. laser power as a function of the beam diameter ........84 GNU GPL license notice ......................86 Operation of the CPM with a PRIMES PanelDisplay..............87 Fiber adapters and domes ......................89 Parallel operation of the CPM with a FocusMonitor FM+ ............94...
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CompactPowerMonitor CPM PRIMES - the company PRIMES is a manufacturer of measuring devices for the analysis of laser beams. These devices are used for the diagnostics of high-power lasers. This ranges from CO lasers to solid-state and fiber lasers to diode lasers and the wavelength ranges from IR to near UV.
Every person who is responsible for the installation, start-up or operation of the device must have read and understood the operating manual and, in particular, the safety instructions. If you still have questions after reading this operating manual, please contact PRIMES or your supplier for your own safety.
CompactPowerMonitor CPM 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.
CompactPowerMonitor CPM 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 touch! 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.
For measurement operation with a PC, the LDS or the PMS must be installed on the PC. The LDS and PMS are included in the scope of delivery. PRIMES will also be happy to provide you with a current download link.
CompactPowerMonitor CPM Device description Type overview The CPMs can be equipped with different flow meters: • Turbine (installed inside the device) • Oval wheel meter (installed on the device) The devices also differ in the size of the entrance aperture, the absorber size and thus in the overall dimen- sions, the permitted power range and the cooling water flow rate required.
CompactPowerMonitor CPM 4.1.2 Devices with oval wheel meter Type Entrance aper- Dimensions Power range Flow rate ture in mm in mm in kW (min/max) CPM F-1 Without illustration 355 (ca.)x 0.1 – 1.4 0,5 – 2 l/min 180x101 CPM F-10 385 (ca.)x 0.5 – 10 4 – 12 l/min 180x101 CPM F-20 Without illustration 400 (ca.)x...
CompactPowerMonitor CPM Tara button The tara button offers two functions: • Tare function • Switching between the screens of the display 4.4.1 Tare function Pressing and holding the tara button (> 0.5 s) applies the currently measured power value as an offset. The tare screen is displayed for confirmation.
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CompactPowerMonitor CPM The following information is displayed on the respective screen: Start • CompactPowerMonitor • Version of the firmware Measurement • the currently measured laser power in Watt • the flow rate of the cooling water in l/min (Flow) • the cooling water temperature Te at the water supply (Water In) in °C •...
CompactPowerMonitor CPM 4.5.3 Acoustic warning signal If the permitted temperature of the absorber is exceeded, a warning signal will sound. The maximum permit- ted temperature depends on the device type: CPM F-1 CPM F-10 CPM F-20 CPM F-30 CPM C-9 60 °C 70 °C 90 °C...
The scope of delivery includes: • CompactPowerMonitor CPM • PRIMES USB flash drive • Operating manual • PRIMES power supply (24 V) with adapter • USB cable (B to A connector), 3 m • Analog out cable, 5 m • Safety interlock cable, 5 m •...
CompactPowerMonitor CPM Transport and storage Warning messages NOTICE Damage/Destruction of the device Hard hits or falls may damage the device. Touching the absorber can lead to localized absorption of the laser radiation at the points of con- tact, leading to burn marks and increased scattered radiation. ...
CompactPowerMonitor CPM Shipping the device with permanently installed lithium metal batteries The device is equipped with 2 permanently installed lithium metal cells (hereinafter referred to as battery). A removal of the battery by the end user is not intended for this product. In case of shipment, the device is to be considered as hazardous good.
CompactPowerMonitor CPM Mounting Conditions at the installation site • The device must not be operated in a condensating 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). •...
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CompactPowerMonitor CPM When installing, make sure that the oval wheel meter axis is horizontal. Oval wheel meter axis Fig. 6.1: Position of the oval wheel meter axis (using the CPM F-10 as example) Correct mounting position The device can either stand on its feet (A) or the connectors and dis- play are in an upright position (B).
CompactPowerMonitor CPM 6.2.3 Align the device The device must be aligned to the laser beam. The laser beam must hit the entrance aperture centrally and perpendicular. The specifications given in chapter 14 „Technical data“ on page 70 must be observed. Use of the device with divergent laser radiation Normally, the device is positioned underneath the focal plane of the beam path for power measurement.
CompactPowerMonitor CPM 6.2.4 Mount the device DANGER Serious injuries if the device falls down If the device is not fastened securely, it may fall down. The secure fastening of the device according to the selected mounting position and the selection of the screws with appropriate tightening torque must be carried out by the customer.
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CompactPowerMonitor CPM The baseplate has M4 and M6 mounting threads to mount the device on a customer specific mount. If necessary, remove the device feet. Mount the device using the mounting threads. The fastening screws must not protrude into the housing by more than 8 mm. CPM F-1 Fig.
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CompactPowerMonitor CPM CPM F-20 Fig. 6.6: Mounting threads M4 and M6 in the bottom of the housing of the CPM F-20 (dimensions in mm) CPM F-30 Fig. 6.7: Mounting threads M4 and M6 in the bottom of the housing of the CPM F-30 (dimensions in mm) Revision 06 EN - 01/2025...
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CompactPowerMonitor CPM CPM C-9 Fig. 6.8: Mounting threads M4 and M6 in the bottom of the housing of the CPM C-9 (dimensions in mm) CPM F-1 with oval wheel meter Fig. 6.9: Mounting threads M6 in the bottom of the housing of the CPM F-1 with oval wheel meter (dimensions in mm) Revision 06 EN - 01/2025...
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CompactPowerMonitor CPM CPM F-10 with oval wheel meter Fig. 6.10: Mounting threads M6 in the bottom of the housing of the CPM F-10 with oval wheel meter (dimensions in mm) CPM F-20 with oval wheel meter Fig. 6.11: Mounting threads M6 in the bottom of the housing of the CPM F-20 with oval wheel meter (dimensions in mm) Revision 06 EN - 01/2025...
CompactPowerMonitor CPM 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 spray into the eyes. 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.
PRIMES bus RS485 (with PRIMES power supply) • PRIMES bus RS485 (with PRIMES power supply and optional PRIMES RS485/RS232 converter) The device starts automatically after connecting the power supply. When starting for the first time, initializa- tion of the device takes about 1 minute. Do not remove cables during this time.
Only use the provided PRIMES power supply with adapter. • Power is supplied via the PRIMES power supply with 24 V ± 5 % (DC) in the PRIMES bus. • The measured values are shown on the display of the device.
• Power is supplied via the USB cable on the PC with max. 5 V (DC). If further USB devices are connected to the PC, it may be necessary to connect the PRIMES power sup- ply. Instead of the PRIMES power supply, the analog output can be used to provide power to the device (see chapter 7.5 on page 36).
A voltage of 24 V is present in the RS485-based PRIMES bus of the CPM. If the PC is directly connected to the PRIMES bus of the CPM, the PC may be damaged. Only connect the PC to the CPM via the PRIMES RS485/RS232 converter (to PC) (see Fig.
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L=10 m PRIMES Converter Adapter PRIMES power supply PRIMES D-Sub cable, USB-serial converter, socket/socket, L=1.8 m L=0.1 m RS232 Fig. 7.7: Power supply via PRIMES power supply , data transfer via D-Sub cable or USB-serial converter Revision 06 EN - 01/2025...
CompactPowerMonitor CPM PRIMES bus RS485 The PRIMES bus is an RS485 interface with 9 pin D-Sub socket. Via the PRIMES bus: • the device is supplied with power using the PRIMES power supply (see chapter 7.2.1 on page 30) • a PC can be connected for communication. Use the PRIMES RS485/RS232 converter for this purpose (see chapter 7.2.3 on page 32).
7.4.2 Installing the USB driver manually The PRIMES USB driver for all USB-enabled devices can be found on the enclosed PRIMES USB flash drive or on the PRIMES website at: https://www.primes.de/en/support/downloads/software.html The USB driver can be installed from the supplied USB flash drive for 32-bit and 64-bit Windows operating ®...
The analog signal is transmitted to a 4-pin M8 connector. In addition, the CPM can be supplied with power via pin 1 and 2. When connecting via USB, the analog output connector can also be used instead of the PRIMES power supply to provide power to the device.
CompactPowerMonitor CPM Safety interlock (Interlock) DANGER Fire hazard; Damage/Destruction of the device The safety interlock monitors the operating conditions of the device. The safety interlock offers potential-free switch contacts for integrating the device into an existing safety circuit. Connect the safety interlock of the laser control unit in such a way, that in the event of faulty oper- ating conditions, the laser is switched off.
CompactPowerMonitor CPM 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. 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...
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 %.
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.
CompactPowerMonitor CPM 7.7.6 Pressure loss Usually, a primary pressure of 2 bar at the water supply (Water In) of the device (with unpressurised outlet) is sufficient 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.
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CompactPowerMonitor CPM CPM F-30 Flow rate Q in l/min Fig. 7.13: Pressure loss diagram CPM F-30 CPM C-9 Flow rate Q in l/min Fig. 7.14: Pressure loss diagram CPM C-9 Revision 06 EN - 01/2025...
• PowerMonitorSoftware PMS 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 by e-mail: support@primes.de Please ensure: System requirements: •...
Windows 10 (32-bit version) Close all programs on your PC. • At least 2 GB RAM; 4 GB RAM recommended Insert the PRIMES USB flash drive into your • Display resolution: XGA (1 024 x 768) at 100 % scaling PC and open the directory.
CompactPowerMonitor CPM Measuring Warning messages DANGER Serious eye or skin injury due to laser radiation During the measurement, the laser beam is guided on the device. This causes scattered or di- rected reflection of the laser beam (laser class 4). For example, 10 kW of laser power can generate several 100 W of scattered radiation.
1. Prepare the device according to chapter 9.2. Determine zero level The tara button can be used to reset the measured value of the power display to zero. PRIMES recommends the following procedure before each measurement: 2. Press the Tara button (> 0.5 s) to reset the measured value in the display to zero.
CompactPowerMonitor CPM 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 Prepare the device according to chapter 9.2 „Preparing measurement readiness“...
CompactPowerMonitor CPM Disconnect from the LDS and switch off the device Click the Devices tab. Right-click on the device and select the Disconnect menu point. The device is disconnected from the LDS. Switch off the power supply by dis- connecting the cable.
CompactPowerMonitor CPM 9.4.3 Open power measurement mode The CPM is displayed as a connected device. Click on the connected device. The corresponding Device control opens. The Power Measurement toolbench opens. 9.4.4 Perform power measurement Settings in the device control Option Explanation Measurement duration in min...
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CompactPowerMonitor CPM Determine device offset (Tare) To determine the device offset, the device must go through a thermalization time. Run the cooling water for approx. 2 minutes. After approx. 2 minutes, the device temperature and the temperature of the cooling water are in equilibrium. With the laser switched off, click Start.
CompactPowerMonitor CPM 9.4.5 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.
CompactPowerMonitor CPM Measuring with the PowerMonitorSoftware PMS 9.5.1 Switch on device and start PMS 1. Prepare the device according to chapter 9.2 „Preparing measurement readiness“ on page 47. 2. Start the PMS by double-clicking on the program icon in the start menu group or on the desktop icon.
Connect device with the PMS Open the Communication > Free Communication menu. For connection via the RS232 and PRIMES converter See chapter 7.2.3 on page 32. After the start-up, the software tries to establish a connection with the serial interface “COM2”. If “COM1” is the only available serial interface, “COM1”has to be explicitly selected in Com port in the menu Communi-...
2. Ensure that the power supply is connected and switched on (the communication is only possible if the PRIMES bus is supplied with 24 V direct current voltage). 3. Switch off the power supply and switch it on again. Possible error message (only when operated with the PRIMES converter): Fig. 9.4: Possible error message Reason: •...
In the appearing window the address of the sender (PC) has to be entered in the field From, the address of the recipient has to be entered in the field To (PRIMES device) and the command is entered in the text field on the right.
CompactPowerMonitor CPM 9.5.5 Determine device offset To determine the device offset, the device must go through a thermalization time. 1. Run the cooling water for approx. 2 minutes. After approx. 2 minutes, the device temperature and the temperature of the cooling water are in equilib- rium.
CompactPowerMonitor CPM 9.5.6 Perform power measurement 1. Observe the max. laser power as a function of the beam diameter according to appendix A on page 84. 2. Switch on the laser. 3. Click the button Start power measurement. The measured laser power is displayed after about 2 seconds. CPM F-1, F-10, F-20, C-9: After about 10 seconds the display reaches about 99 % of the final value.
CompactPowerMonitor CPM 9.5.7 Measuring value display The graphical user interface is divided into three display parts (see Fig. 9.8 on page 59): • The numerical display of the current measuring values (window A) • The temporal development of the laser power or the flow rate or of the cooling water temperature (win- dow B) •...
CompactPowerMonitor CPM Settings The maximum duration (Max) for the averaging is 90 seconds. A possible zero offset can be compensated with the button Use current value as offset or numerically via the input field Zero level. Window B (Graphical display) In window B two time series are displayed: Time series power The y-axis (power) of the window can be scaled automatically or with fixed values (200 W or 500 W).
CompactPowerMonitor CPM Troubleshooting 10.1 Messages in the LDS during measurement 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: ...
The overpressure caused in the standing cooling water can also cause leaks in the hoses and connectors. 2. Check the device for leaks. In the event of a leak, please send the device to PRIMES for inspection. If no leakage can be detected: 1.
CompactPowerMonitor CPM 10.4 Warning or error message on the display Display of a warning or error message A warning triangle is shown on the display. The possible cause is shown in the warning screen (change screen by briefly pressing the tara button). Warning message Warning triangle Error message...
CompactPowerMonitor CPM 10.4.2 Error message (warning triangle on the display and Error LED lights up red) The safety interlock has been triggered. Display Possible cause Solution The cooling water flow is too low Check the cooling circuit and the direction of the water (depending on device type).
CompactPowerMonitor CPM 10.6 Damages to the absorber The first picture shows a new absorber. The arrows show damage to the absorber and have the following meaning: • White: surface appears shiny, first sign of overheating • Green: the absorber is clearly discolored; clear sign of overheating •...
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CompactPowerMonitor CPM The arrows show damage to the absorber and have the following meaning: • White: surface appears shiny, first sign of overheating • Green: the absorber is clearly discolored; clear sign of overheating • Red: the coating is missing or there is a hole in the absorber, burn-in caused by overheating •...
The operator is responsible for determining the maintenance intervals of the measuring device. PRIMES recommends a maintenance interval of 12 months after initial operation 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.
64319 Pfungstadt Germany If you are located outside the EU, please contact your local PRIMES distributor to discuss the disposal pro- cedure for your PRIMES measuring device. PRIMES is registered at the german „joint body“ for producers „Stiftung Elektro-Altgeräte Register“ (Stiftung EAR).
For this demonstration, we used low power absorption spectra and a wavelength transfer process. The latter requires the use of a PRIMES EC-PM with a wavelength-independent absorber. For practical purposes, add 2 % to the above instrument accuracy value (± 5 % instead of ± 3 %).
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Storage temperature range 5 – 50 °C Reference temperature 22 °C Permissible relative humidity (non-condensating) 10 – 80 % PRIMES is committed to a continuous product improvement strategy, which can lead to specifications being opti- mized without any prior announcement. Revision 06 EN - 01/2025...
For this demonstration, we used low power absorption spectra and a wavelength transfer process. The latter requires the use of a PRIMES EC-PM with a wavelength-independent absorber. For practical purposes, add 2 % to the above instrument accuracy value (± 5 % instead of ± 3 %).
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Storage temperature range 5 – 50 °C Reference temperature 22 °C Permissible relative humidity (non-condensating) 10 – 80 % PRIMES is committed to a continuous product improvement strategy, which can lead to specifications being opti- mized without any prior announcement. Revision 06 EN - 01/2025...
CompactPowerMonitor CPM 15.6 CPM F-1 with oval wheel meter Bottom view Side view right Top view Front view Dimensions in mm Revision 06 EN - 01/2025...
CompactPowerMonitor CPM Appendix Diagrams of the max. laser power as a function of the beam diameter CompactPowerMonitor CPM-F1 CompactPowerMonitor CPM F-1 Limit values Recommended values 12.5 17.5 Beam diameter in mm CompactPowerMonitor CPM-F10 CompactPowerMonitor CPM F-10 Limit values Recommended values Beam diameter in mm Revision 06 EN - 01/2025...
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CompactPowerMonitor CPM CompactPowerMonitor CPM-F20 CompactPowerMonitor CPM F-20 Limit values Recommended values Beam diameter in mm CompactPowerMonitor CPM-F30 CompactPowerMonitor CPM F-30 Limit values Recommended values Beam diameter in mm Revision 06 EN - 01/2025...
CompactPowerMonitor CPM GNU GPL license notice The software of this product contains software code that is licensed subject to the GNU General Public License (GPL) Version 2 or later. The license terms of the GNU GPL Version 2 or later are available on the following websites: •...
The CPM is supplied with power via the PRIMES power supply on the PanelDisplay. 1. Connect the PanelDisplay (front or rear) to the CPM using the 9-pin D-Sub cable. 2. Connect the PRIMES power supply via the adapter to the remaining 9-pin D-Sub socket (RS485) of the PanelDisplay.
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+24 V Not assigned Tab. C.1: Pin assignment D-Sub socket on the PRIMES PanelDisplay Display The PRIMES PanelDisplay reflects the display of the CPM and shows the following measurement values: Display Meaning Laser power in W Flow Flow rate of the cooling water in l/min Cooling water temperature at the water supply (Water In) in °C...
CompactPowerMonitor CPM Fiber adapters and domes For detailed information on the available fiber adapters, please contact PRIMES or your PRIMES distributor. The fiber adapter connects the CPM to a fiber, so that power measurements at the fiber end are possible.
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CompactPowerMonitor CPM Connection of the CPM F-10 to fiber adapter and dome Fiber connector Dome Safety interlock Water return (Water Out) Water supply (Water In) Fig. D.3: CPM F-10 with fiber adapter and dome (using the example of the fiber adapter LLK-D) Revision 06 EN - 01/2025...
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CompactPowerMonitor CPM Connection of the CPM F-20 to fiber adapter and dome Fiber connector Safety interlock Dome Water return (Water Out) Water supply (Water In) Fig. D.5: CPM F-20 with fiber adapter and dome (using the example of the fiber adapter LLK-D) Revision 06 EN - 01/2025...
The signal of the CPM is forwarded by the FM+ via its Ethernet interface to the PC. The CPM is supplied with power via the PRIMES power supply on the FM+. 3. Connect the PRIMES power supply to the FM+...
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