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LabMax-Pro SSIM User Manual

1. 4 17 Measurements Pane seen 4 17 Graphics PANS seen ee ee ea 4 18 Statisties Panel dee ee a 4 21 QUICK ACCESS Toolbar aci EP ee Nee 4 22 VT ms EEE O ren qtu d n E et td 4 23 SITIS Bit an ee ee een 4 26 STEPS NOON OGG naar ueber 4 28 Information and Heparin 4 31 Section Five Host Interface sse 5 1 ae 5 1 Message TertPiladlO au 5 1 Messages Recerved Dy he Meter 5 1 Messages Dy ee 5 1 Usmis The 32 Mern tu citans ues 5 2 Control anne pre LATIO Nee 5 2 Baud Rate and Other Communication Settings 5 2 Usm the D Interfaces 5 2 Syntax and Notation Conventions 5 2 Host Command Quick Relerenee uu eek 5 3 Commands and QUEE xi arn ias Redi US EE 5 6 SCE LEC Command a aa Mani 5 6 Reset Command ROT esse area 5 6 Identification Query IDN 5 6 SY Stell D nee 5 6 SAAE TL 5 6 SYSE TSA US a TQ 5 7 DA D E E E seem aa Ne 5 7 System RESTOL u rennen 5 8 SES NY NCS ML VM M ADI MTM 5 8 COMMIT AL ONS os na dcn 5 8 Messase Hands
2. ases 5 26 Host Interface Glossary aD 5 27 Section Six Calibration and Warranty 21 1 7 1 sss 6 1 Societ na 6 1 Coherent Calibration Facilities and Capabilities 2220uusssssssnnnnenseeeeeeennnnnnnneeneeeneennnn 6 1 Resist LEVY Ai u PD 6 2 Extended W arany san MIL ee 6 2 ITE Dm 6 3 ODIDE Service 6 3 Product Shippin Instruchions za euere 6 4 Appendix A 5 1 Meter speci Heat 008 arena 1 Persistent Parame att 2 Appendix Errors 1 B 1 Meter and Sensor einen 1 Index 1 LabMax Pro SSIM User Manual 1 1 3 1 3 2 3 3 3 4 3 5 3 6 3 7 4 1 4 2 4 3 4 4 4 5 4 6 4 8 3 1 5 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 1 1 1 LisT OF FIGURES Waste Electrical and Electronic Equipment 1 2 Example of Detail Available When Using High Speed Mode 3 2 Example of Detail Available When Using Snapshot 3 3 Construction of a Tr
3. User Manual LabMax Pro SSIM Laser Power Meter COHERENT User Manual LabMax Pro SIMM Laser Power Meter COHERENT 27650 SW 95th Ave Wilsonville OR 97070 LabMax Pro SSIM User Manual This document is copyrighted with all rights reserved Under the copyright laws this document may not be copied in whole or in part or reproduced in any other media without the express written permission of Coherent Inc Permitted copies must carry the same proprietary and copyright notices as were affixed to the original This exception does not allow copies to be made for others whether or not sold but all the material purchased may be sold given or loaned to another person Under the law copying includes translation into another language Coherent the Coherent Logo and LabMax are trademarks or registered trademarks of Coherent Inc All other trademarks or registered trademarks are the property of their respective owners Patents referenced in this document were active as of the printing date of the manual see last page for date The patents referenced herein may have expired You are advised to check to see if the patents are still active http portal uspto gov external portal pair Every effort has been made to ensure that the data given in this document is accurate The information figures tables specifications and schematics contained herein are subject to change without notice Coherent makes no
4. when active appears here appears here Sensor Temperature if available This icon represents the current temperature status of the sensor If the icon is grayed out when running the readings are not being updated A le icon indicates high temperature PowerMax Pro sensors have a maximum operating temperature of 60 degrees centi grade This indicator is disabled while the meter is running Operation Snapshot Mode Status when active Snapshot Mode This icon is active when Snapshot mode is selected and Start is pressed The icon 15 inactive when the buffer is loaded in Non Contin uous mode or if Stop is pressed This icon appears after pressing Start and while waiting for a trigger event snapshot Mode Waiting mee If no trigger event 15 detected the Snapshot icon will remain in the red waiting mode Pressing the Force button next to the Snapshot icon will force the meter to collect Snapshot data regardless of whether or not it finds a trigger This icon appears when Snapshot mode is running there is a trigger event and the data is being uploaded to the PC Snapshot Mode Loading e In Continuous mode the system cycles between the Waiting state and the Loading state In Non Continuous mode the system cycles once displays the data and then stops The Status bar is blank when done If a trigger event does not occur the system stays in the waiting state If this happens stop data collection exit
5. The European Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC is represented by a crossed out garbage container label see Figure 1 1 The purpose of this directive is to minimize the disposal of WEEE as unsorted municipal waste and to facilitate its separate collection Waste Electrical and Electronic Equipment Label Declaration of Conformity certificates are available upon request Software Installation and Quick Start SECTION TWO SOFTWARE INSTALLATION AND Soflware Installation Initial Setup Instructions QUICK START In this section Software installation this page Initial setup instructions this page Taking a Standard Speed measurement p 2 3 Taking a High Speed measurement p 2 6 Taking a Snapshot measurement p 2 9 To install the LabMax Pro PC software and drivers Close all programs Insert the CD that shipped with the product into the CD ROM drive of your computer If Autorun is enabled on your system installation will start automat ically otherwise double click the LabMax Pro PC Setup exe file in the main folder on the CD Follow the on screen instructions to complete the installation Complete the following instructions before using any of the Quick Start tutorials presented in this section 1 Install the LabMax Pro PC software see Software Installation above Attach the PowerMax Pro sensor to the LabMax Pro meter by connecting the DB 25 conne
6. Commands and Queries SCPI Common Commands Reset Command RST Identification Query System Options System Type The SCPI Standard specifies a standard set of common commands common commands and queries start with an asterisk This command resets all operational parameters to their power on states Reset does not affect calibration settings Command RST Query none This query gets the meter identification string such as model name firmware version and firmware date Query Reply Coherent Inc LabMax Pro SSIM type version firmware date The dash sign separates all fields within the reply string The first field 15 always Coherent Inc The second field is the product name LabMax Pro SSIM The third field is the version number having the format V lt major gt lt minor gt lt subminor gt lt optional quali fier characters gt The fourth field 15 the firmware date having the form lt 3 character month name gt day of the month lt year gt The reply string is not quoted For example a typical identification string looks like Coherent Inc LabMax Pro SSIM V1 0 0 Jun 11 2013 Note The quotes are not transmitted The system commands and queries access functionality that 15 exclusive of the sensor s measurement functions These commands can be sent at any time without affecting a measurement in prog
7. tained with the utmost care recalibrated annually and verified even more regularly We maintain multiple NIST calibrated standards at many laser wavelengths to support the growing calibration needs of our customers Optical calibration is a core competency at Coherent and we strive to continually improve our methods precision and repeatability Additionally most of the calibrations are performed with highly automated systems thus reducing the possibility of human error to nearly zero Strict quality inspections during many stages of calibration and testing assure a precise and accurate instru ment that is NIST traceable and CE marked The benefit to our customers is that instruments calibrated by Coherent will consis LabMax Pro SSIM User Manual Limited Warranty Extended Warranty tently perform as expected under their actual use conditions We are a registered ISO 9001 2000 company our products are NIST trace able and our calibration labs are fully ANSI Z540 compliant In addition to the technological advantage we also strive to deliver the best service in the industry with a knowledgeable and responsive staff and rapid turnaround Coherent Inc the Company warrants its laser power and energy meters and sensors products Products to the original purchaser the Customer that the product is free from defects in materials and workmanship and complies with all specifications active at the time of purchase for a
8. 3 4 or 5 digits Analog Out Selects the full scale voltage 2 or 4 volts d Measurements Selects the value that displays 1n the Measure ments Panel for more information refer to Measurements Panel p 4 17 The type of measurement for example Max also appears in square brackets following the selected oper ating mode In the example above the operating mode is Power Watts and the measurement value shown in square brackets 1s Mean Measurement values include Mean the mean value from the Statistics panel for more information refer to Statistics Panel p 4 21 Min the minimum value from the Statistics panel Max the maximum value from the Statistics panel Live the most recent sample from the Capture buffer and Filtered a simple filter applied to a recent collection of samples Polling Continuous Update Meter Polling Continuous Update only available if Meter Polling 15 enabled Requests measurement readings and updates the Measurements panel the Tuning panel and the sensor temper ature even while data acquisition 1s stopped The Trending window the Histogram window and the Statistics panel are never updated when data streaming 1s turned off Meter Polling Checks the meter status sensor connects and disconnects and meter shutdowns This 15 required for the application to recognize sensors that are disconnected and reconnected hot swapped during operation LabMax Pro
9. Data bits Using the USB When the meter is connected to a host via USB it shall be viewed as Interface a virtual serial communications port Syntax and Syntax and notation conventions specified by the SCPI Standard are Notation followed for all SCPI commands and queries unless otherwise spec Conventions ified Refer to the SCPI Standard for more information The base 10 numeric data format specification 1s used heavily in this section Unless otherwise specified numeric data items are repre sented as Integer values Non scientific notation floating point values Scientific notation floating point values upper lower case E For example the following data values are functionally equivalent 31256 31256 0 3 1256e4 M 31 256e3 3 1256e 4 Unless otherwise specified non numeric data items typically referred to as strings are not quoted Dad Host Interface The following table gives a brief description of all LabMax Pro host OS Quick commands For detailed information about a specific command go to the page referenced in the right hand column Reference Table 5 2 Host Command Quick Reference Sheet I of 3 SCPI Common Commands Command Description Page f Resets all operational parameters to their power on states RST 5 6 IDN Gets the meter identification string T System Options Command Description SYSTem TYPE Returns the system type string
10. Saves all data in the acquisition to an external file 4 6 Data Buffer Tab Operation Calibration Zero Zero Zeros any baseline offset for all ranges for both Stan dard Speed and High Speed modes Sampii Enable Mode 128 81 770 mW 81 210 mW 2 297 mW 227 11 pw 0 28 0 56 0 83 0 0000 W Data Buffer Settings Da Capacity 100000 Continuous Mode All acquisition sample data are ultimately collected in the Data buffer which 1s also the destination for data acquired by the meter The buffer 1s also the destination or source respectively for data Imported from or exported to an external data log file The Data buffer is a circular buffer that is although it has a finite capacity it can record data continuously When the buffer reaches its capacity older samples are discarded to make room for new ones This means that no matter how long data acquisition continues the Data buffer will always hold a fixed number of the most recent samples Capacity Controls the desired capacity of the Data buffer LabMax Pro SSIM User Manual s Continuous Mode Acquires data continuously until you press the Stop button If Continuous mode is not selected the meter collects samples until the buffer is full and then automatically stops data collection Pressing the Start button again will fill the buffer with new samples Pressing the Stop button while running in Non Conti
11. show the type of detail you can get in this mode T Tuning Trending Histogram ikHz PRF 80 Duty Cycle lC M e 7 Tuning 0 Trending ili Histogram 1kHz PRF 50 Duty Cycle stot Trending alg rennen 1kHz PRF 30 Duty Cycle ee 0 bm dkHz PRF 20 Duty Cycle _ Figure 3 1 Example of Detail Available When Using High Speed Mode Description Snapshot Mode A faster high speed sampling mode called Snapshot Mode provides burst sampling at a rate of 625 kHz for a maximum of 384 milliseconds This mode enables you to see the temporal characteristics of modulated pulses used in commercial cutting engraving and drilling applications as well as long pulses and pulse trains used in aesthetic medical applications This temporal detail shows the true performance of the laser previously masked by slow thermopiles thereby providing more information to assist setting up process recipes and for monitoring system perfor mance in manufacturing Figure 3 2 below shows the data quality and high pulse shape fidelity that can be achieved Modulated 10 6 um CO2 Laser 50 us PW 8 kHz PRF 40 Duty Cycle Figure 3 2 Example of Detail Available When Using Snapshot Mode LabMax Pro SSIM User Manual Product Features USB 2 0 Hi Speed and RS 232 connectivity Instrumentation platform is compatible with
12. warranty or representation either expressed or implied with respect to this document In no event will Coherent be liable for any direct indirect special incidental or consequential damages resulting from any defects in its documentation Technical Support In the US Should you experience any difficulties with your product or need any technical information please visit our website www Coherent com Additional support can be obtained by contacting our Technical Support Hotline at 1 800 367 7890 1 408 764 4557 outside the U S or e mail Product Support Coherent com Telephone coverage is available around the clock except U S holidays and company shutdowns If you call outside our office hours your call will be taken by our answering system and will be returned when the office reopens If there are technical difficulties with your laser that cannot be resolved by support mechanisms outlined above e mail or telephone Coherent Technical Support with a description of the problem and the corrective steps attempted When communicating with our Technical Support Department via the web or telephone the Support Engineer responding to your request will require the model and Laser Head serial number of your laser system Outside the US If you are located outside the U S visit our website for technical assistance or contact our local service representative Representative phone numbers and addresses can be found on the Coherent web
13. 0000 W HT IH Hi I 11 I 0 0000 W i Jen es pns erm ei Fo ped in bag De ma Ip ecd eee Be et ee aped p genes oe 46043500 46143432 46243364 46343296 46443228 46543160 46643002 46743024 Elapsed Seconds LabMax Pro SSIM User Manual In the following two examples measurement capture has been completed ated Trending 127770 samples 0 000 bru 2204 nso cay Trigger level 30 0000 Wy Show Trigger Markers In the example above the initial display is zoomed all the way out showing the entire data set The red block at the far left 1s the first 20 trigger marks squeezed together to appear like a single block the remaining data appears as a magenta block The example below shows the same measurement capture zoomed in to show individual markers and signal waveforms a ios _ an M y Ill Ill 1111 dud INNE csi IIl T T T T T T T T 00011592 00023184 00024776 00046268 00057960 00069552 00081144 Elapsed Seconds There are three ways to zoom a view 1 Drag the mouse to define a portion of the display 2 the mouse wheel to zoom in or out 3 Use the scroll bar to define a portion of the display by drag ging either the left or right handle of the scroll bar or scroll the display by dragging the scroll bar to the left or right The Statistics Pa
14. High Speed and Snapshot modes to view temporal information Use Standard Speed mode when measuring power of high repetition rate short pulsed lasers such as picosecond femto second and nanosecond lasers In this 10 Hz sampling mode PowerMax Pro provides extremely fast average power read ings on these lasers Because Ultrafast and q switched laser pulses are too fast for PowerMax Pro to resolve temporal pulse information and High Speed and Snapshot mode sampling rates will alias with the high kHz pulse repetition rates it is best to operate in Standard Speed mode with these lasers LabMax Pro SSIM User Manual Da you Procedure l Complete the Initial Setup Instructions p 2 1 2 Home tab Verify the High Speed T ode Power Wat Mode checkbox is not checked nee Range 150 00 W High Speed Mode 3 sure either the laser is OFF or the beam is blocked 4 Home tab Press the Zero button to zero the sensor A dialogue will display the zeroing process which will only take a second or two Zero 5 Measurement tab Select your laser wavelength from the dropdown menu Wevelength OFF If your laser wavelength is not avail 1 OFF able choose the one closest to it or Edit Table alternatively click on Edit Table in 375 nm the menu and add your specific wave 405 nm length to the Wavelength Table 514 nm 6 Data Buffer tab Enter a value in the Capacity field that represents the sample size you would lik
15. Measurement Graphics Statistics panels These items control the visibility of the three primary panels in the user interface As many as two of the three panels can be hidden at the same time Show System Info Displays a window listing many details about the meter and the attached sensor The information in this window can be saved to a file or clipboard and shared with others to assist in troubleshooting Show I O Transcript Displays a window showing the traffic between the meter and the PC application s Show Error Log Displays a window showing all error messages received so far in the current session This window pops up automatically if an error is reported Edit Wavelength Table Displays a window that can be used to edit the entries of the wavelength compensation table Many of the menu commands are duplicated in the ribbon tabs Launches this Help file About gt Opens screen showing software information LabMax Pro SSIM User Manual Check for Updates Check For Updates Searches the Coherent website for software updates which can be automatically downloaded and installed Exits LabMax Pro Status Bar The Status bar displays current operating and sensor information Home feb Liew o Wwe 3 Range i0000 W X Ed Mana Best Extrema Range qM Mode Status icon Sensor Temperature
16. PROBe RESPonsivity Reply lt responsivity gt 0 0 1s returned if a valid probe is not attached Host Interface Calibration Date This query gets the calibration date of the probe Command none Query SYSTem INFormation PROBe CDATe Reply probe calibration date The date is expressed using the in the ASCII string format of lt 3 character month name day of the month lt year gt An empty string is returned if a valid probe 1s not attached Head Temperature This query gets the head temperature of the probe Command none Query SYSTem INFormation PROBe TEMPerature Reply probe head temperature in degrees Celsius in integer format The literal string NA quotes not included is returned if a valid probe is not attached or the attached probe does not have a tempera ture measurement device Diameter This query gets the probe diameter Command none Query SYSTem INFormation PROBe DIAMeter Reply probe diameter in mm The literal string NA quotes not included is returned if a valid probe is not attached or the attached probe diameter value is not known LabMax Pro SSIM User Manual Persistent Parameters Table 5 9 Persistent Parameters Data Argument Range Factory Value DBM Joules Watts PRIIFLAG ISEQ Parameter Description Message Handshaking Measurement Mode Measurement Record Data Items Area Correction State Area Correction Aperture 0 01 500 00 Wavelength
17. Snapshot mode and adjust trigger settings in High Speed mode Use the Show Trigger Markers option for more information refer to Trending Window 4 19 to make sure triggers are occurring as expected before entering Snapshot mode Press Stop to either stop Continuous mode or to stop a single shot upload in progress After pressing Stop the captured data will transfer to the PC and the results are shown in the application LabMax Pro SSIM User Manual Snapshot Mode For step by step instructions on setting up Snapshot mode refer to Taking a Snapshot Measurement p 2 9 at This is a special acquisition mode that captures high speed events at 625 kHz or 1 6 uSec per sample capture rate to the internal buffer inside the meter Due to the high rate of data acquisition while in this mode it 15 necessary to temporarily store the data in the instru ment hardware s SRAM as it is not possible to upload it in real time via USB Once the data acquisition is complete the instrument uploads the data to the PC where it 1s placed in the Capture buffer and displayed in the software Samples Duration pS Enable Snapshot Mode Capacit 240000 384000 u en in Change Settings Help Pre Trigger 0 0 Change Settings Launches a dialog to allow editing of all Snapshot mode settings Help Displays information specific to Snapshot mode During Snapshot mode the hardware waits for a trigger event before acquiring dat
18. a special acquisition mode that captures high speed data at 625 kHz or at 1 6 microseconds per sample capture rate to the internal buffer inside the meter Due to the high rate of data acquisition in this mode it is necessary to temporarily store the data in the instrument hardware s SRAM as it is not possible to upload it in real time via USB Once the data acqui sition 15 complete the instrument uploads the data to the where it 1s placed in the Capture buffer and displayed in the software To avoid aliasing effects between the meter sampling rate and the laser pulses do not use this mode with lasers modulated at over 80 kHz pulse repetition frequency Process During Snapshot mode the hardware waits for a trigger event before acquiring data The process works like this 1 You define the data acquisition settings including trigger settings enable Snapshot mode and press Start 2 The meter searches for a trigger and the user interface waits for the meter to start sending data 3 When atrigger is found the meter starts filling its own Capture buffer 4 When the buffer is full the data is sent to the user interface which displays it Procedure The first part of the procedure is to define the data acquisition settings including trigger settings This is done in High Speed mode l 2 Complete the Initial Setup Instructions p 2 1 Home tab Verify the High Speed Mode Power Watts Mode check
19. longer to reach this stable state This slow response time makes thermopiles best suited for measuring CW laser power For pulsed lasers the best they can deliver is average power over a finite time interval or total integrated energy from a long burst of pulses Coherent developed PowerMax Pro technology to meet the growing need for a laser power sensor that offers the broad wavelength sensi tivity large dynamic range and high damage resistance of a thermo pile with the fast response speed approaching that of a semicon ductor photodiode The PowerMax Pro is constructed and config ured differently than a thermopile Specifically in this device the heat flows vertically through the detector and the electrical field that is generated moves perpendicular to the heat flow refer to Figure 3 4 below Short Heat Laser Flow Path t microns Thin film heat flow Figure 3 4 Basic Configuration of a PowerMax Pro Sensor LabMax Pro SSIM User Manual Power The materials used in this sensor are a stack of films which have layer thicknesses on the order of microns Incident laser light 1s absorbed and generates heat which can flow very quickly through these thin layers to the heatsink below the detector where it 1s dissi pated The electrical signal from the thin film layers moves laterally to the edges of the device where it is measured by tapping into the sensor electrodes In contrast to the traditional
20. or NOSPEC NONE NONE is returned when there is no valid probe attached THERMO QUAD or THERMO SINGLE 15 returned when a valid thermopile probe is attached PYRO NOSPEC is returned when a valid pyroelectric probe is attached OPT NOSPEC is returned when a valid optical probe is attached LabMax Pro SSIM User Manual Model This query gets the currently connected probe model Command none Query SYSTem INFormation PROBe MODel Reply probe model string The probe model string 1s the name string of the attached probe The probe model string is the generic name of the attached probe if the string does not exist The reply string 1s not quoted The following naming rules apply in the order listed l An empty string if a valid probe is not attached 2 The probe model string stored within the probe EEPROM if a probe model string exists 3 LM if a valid LM style probe is attached and a probe model string does not exist 4 if a valid PM style probe is attached and a probe model string does not exist 5 Unknown in all other cases Serial Number This query gets the serial number of the probe Command none Query SYSTem INFormation PROBe SNUMber Reply probe serial number An empty string is returned if a valid probe is not attached Responsivity This query gets the currently connected probe calibration respon sivity Responsivity units depend on the probe type Query SYSTem INFormation
21. period of twelve 12 months Coherent Inc will at its option repair or replace any product or component found to be defective during the warranty period This warranty applies only to the original purchaser and is not transfer able Coherent Inc the Company offers original purchasers the Customer purchasing laser power and energy meters and sensors products Products an extended twelve 12 month warranty program which includes all parts and labor In order to qualify for this warranty a Customer must return the Product to the Company for recalibration and recertification The Company will recertify the Product provide software upgrades and perform any needed repairs and recalibrate the Product for a fixed service fee as estab lished by the Company from time to time and in effect at the time of service If the product cannot be recertified due to damage beyond repair parts obsolescence or other reasons the Customer may be informed that an Extended Warranty program 1s not available for the Product If the Product fails and 1s returned to the Company within one year following the date of recalibration and recertification service the Company will at its option repair or replace the Product or any component found to be defective If the Product must be replaced and the Product 15 no longer available for sale Coherent reserves the right to replace with an equivalent or better Product This warranty applies only
22. radial flow thermopile which has a sensing time constant value of several seconds the time constant for the thin film configuration is in the microsecond range This enables the sensor to supply an essentially instant power measure ment without any overshoot refer to Figure 3 5 below The PowerMax Pro sensor preserves the main benefits of the traditional thermopile architecture namely large active area 30 mm x 30 mm wide dynamic range 50 mW to 150W high damage resistance 14 kW cm and broad wavelength range 300 nm to 11 um zs PowerMax Pro zum Ihermopile 5 10 15 20 25 30 Time sec Figure 3 5 The Rise Time of a Typical Mid power Thermopile 30W Compared with the Applying Wavelength Compensation Accuracy PowerMax Pro The response speed of PowerMax Pro sensors lets users move beyond just measuring average power and enables visualization of the temporal pulse shape and peak power of modulated lasers with pulse lengths greater than 10 us These pulses can then be integrated to calculate individual pulse energy Overall measurement accuracy is a combination of the meter and sensor calibration uncertainties For an up to date list of all compat ible sensors and their specifications go to www Coherent com LMC Wavelength Compensation Accuracy Rv Spectral Correction Factor 0 9 4 0 8 Description The combined accuracy is based upon practices outlined in the National Institute of Standards Guide
23. selects the full scale output voltage at the analog output connector Command CONFigure AOUT FSCale 11214 Default 1s 2 Query CONFigure AOUT FSCale Reply 11214 Time This command sets the display data smoothing to either ON or OFF Command CONFigure AVERage TIME OFFION Default is OFF Query CONFigure AVERage TIME Reply OFFION LabMax Pro SSIM User Manual Wavelength Correction Enable Disable State This command enables disables wavelength correction Command CONFigure WAVElength CORRection OFFION Default is OFF Query CONFigure WAV Elength CORRection Reply OFFION Operational Wavelength This command sets the current wavelength which is committed to persistent storage when it s changed If the requested wavelength 15 greater than the upper wavelength limit the current wavelength will be set to the upper wavelength limit Likewise if the requested wavelength is less than the lower wavelength limit the current wavelength will be set to the lower wavelength limit The minimum and maximum allowed wavelength can also be named as data argu ments The query gets the current maximum allowed or minimum allowed wavelengths depending on the optional query data argu ment Command CONFigure WAV Elength WAV Elength MINimumIMA Ximuml requested wavelength in nm gt Query CONFigure WAVElength WAVElength MINimumIMA Ximum Reply granted wavelength in nm if MINimum MAXimum is not s
24. to the original purchaser and is not transferable Warranty Limitations Obtaining Service Calibration and Warranty The foregoing warranties shall not apply and Coherent reserves the right to refuse warranty service should malfunction or failure result from Damage caused by improper installation handling or use x Laser damage including sensor elements damaged beyond repair x Failure to follow recommended maintenance procedures Unauthorized product modification or repair Operation outside the environmental specifications of the product Coherent assumes no liability for Customer supplied material returned with Products for warranty service or recalibration THIS WARRANTY IS EXCLUSIVE IN LIEU OF ALL OTHER WARRANTIES WHETHER WRITTEN ORAL OR IMPLIED COHERENT SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH ITS PRODUCTS In order to obtain service under this warranty Customer must notify the Company of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service The Company shall in its sole discretion determine whether to perform warranty service at the Customer s facility at the Company s facility or at an authorized repair station If Customer 1s directed by the Company to shi
25. value gt 0 In particular gain may make the 4 10 Trigger Tab Operation measured result larger value 1 or smaller 1 value 0 This feature can be useful when measuring a source through a beamsplitter or attenuator or when applying a secondary cali bration factor d Decimation Slows down the data captured by the meter For example a decimation value of 2 causes the meter to discard every other sample Use settings on this tab to configure the meter for detecting trigger events Trigger events are marked with a vertical red line in the Trending display if the Show Trigger Markers dialog is checked for more information refer to Trending Window p 4 19 The instrument must detect a trigger event to acquire data in Snapshot Mode for more information refer to Snapshot Mode p 4 28 Power Watts Mean Power Statistics Count 128 Mean ul B1 770 mW Min 81 210 mW W 82 297 mW m o 227 11 pw e mu D 28 9 EF FIT 0 56 ET 0 83 TE Toning Towing PEL Dose 0 0000 W Over 0 aset area ae Dai gt a Ba T rel Over Temp 0 Negative 0 0 u Inggers Missing Trigger Settings Trigg Level 15 Watts Edge Positive Source Internal Delay 0 Level Specifies the trigger level as an absolute measurement The measurement suffix Watts for example is displayed to the right of the Level box LabMax Pro SSIM User Manual So
26. 00 70400 00 min Pre Tngger 98057 15689120 min Specifying Settings There are three ways you can enter values for Capacity and Pre Trigger 1 Enter an absolute number of samples 2 Enter an equivalent duration in microseconds 3 Move a slider to choose the value Information and m MEE monis Type Power am gt E i Range ioo mon a um Er Cer ing Power Watts Mean Power Statistics Count 128 Menn pl 81 770 mW Min 81 210 mW W Max 82 287 mW StdDev co 227 110 e qu 0 28 fof 0 56 ao i 0 83 COD Tuning tab Trending oll Histogram Triggers 0 0 Information Operation Also referred to as an About window clicking this button opens a screen showing software information You can also search the Coherent website for software updates which can be automatically downloaded and installed Here s an example of an Information screen Coherent LabMax Pro PC Version 1 0 RELEASE Copyright Coherent 2013 2014 Coherent Incorporated 27650 SW 95th Avenue Wilsonville OR 97070 USA hitp www coherent com LMC soles coherent com 800 343 4917 Check for Updates Close LabMax Pro SSIM User Manual Host Interface SECTION FIVE HosT INTERFACE Special Considerations Message Terminators Messages Received by the Mete
27. 00 and an Update Period of 0 5 These are good values with which to start Sample Count 1500 Update Period sec 0 5 10 11 12 13 14 Software Installation and Quick Start Trigger tab Enter a Level Trigg setting in Watts that represents tee 5 Watts Edge Positive a level approximately SO our intemal gt between zero and the power you expect each pulse to have If you do not know peak power enter a Level setting between zero and the average power Verify Source 15 set to Internal Edge 15 set to Positive and Delay is set to zero Trending window Make sure the Show Trigger Markers checkbox is checked This allows you to confirm the meter is auto triggering on the pulses which is required before entering Snapshot mode Tuning Trending all Histogram 0 samples Trigger level 20 0000 W v Show Trigger Markers Mo dala to plat Expose the sensor to the laser beam Quick Access toolbar or Home tab EH Start data collection by pressing the Start icon Start Stoy FU OU Trending window After data collection is complete confirm that each pulse has a trigger marker represented by a red vertical line plotted at each trigger event The green line repre sents the trigger threshold level If the red trigger markers are not visible or are not consistently triggering on each pulse event go back and adjust the Trigger Level setting in the LabMax Pro SSIM User Man
28. 100000000 TPC fahre ___ LabMax Pro SSIM User Manual System Restore System Sync Communications Message Handshaking Command none Query SYSTem FAUL t Reply fault System As an example if a probe is found but there is a general fault the system fault query returns 00000002 probe damage temperature exceeded This command restores all user settings to the factory state Command SYSTem RESTore Query none This command resets the system measurement sync timer This query gets the system measurement sync timer value The system measurement sync timer is a free running timer that increments by ten for every 10 microseconds of elapsed time This timer is used as the source for the timestamp value for all power related measure ments To counteract clock creep send the system sync command at intervals not to exceed 10 minutes Command SYSTem SYNC Query 5 5 5 Reply current timer value This command selects the state of SCPI message round trip hand shaking Command SYSTem COMMunicate HANDshaking ONIOFF Reply OK if ON is selected otherwise no reply is sent Query SYSTem COMMunicate HANDshaking Reply ONIOFF If handshaking 15 ON Empty commands commands with only whitespace charac ters reply with OK r n Valid commands with valid data reply with OK r n Error Record Reporting and Collection Host Interface Valid queries wi
29. 5 17 Measurement Data Record Format 5 18 PLAC OE rare ara a 5 19 Persistent Parameters u an 5 26 Coherent Service Centers ae haben 6 4 SPECE ee ee ee 1 Meter and Sensor ve re nde mene M eet ee B 1 vi Signal Words and Symbols in this Manual Signal Words Table of Contents This documentation may contain sections in which particular hazards are defined or special attention is drawn to particular condi tions These sections are indicated with signal words in accordance with ANSI Z 535 6 and safety symbols pictorial hazard alerts in accordance with ANSI Z 535 3 and ISO 7010 Four signal words are used in this documentation DANGER WARNING CAUTION and NOTICE The signal words DANGER WARNING and CAUTION desig nate the degree or level of hazard when there is the risk of injury DANGER Indicates a hazardous situation that if not avoided will result in death or serious injury This signal word is to be limited to the most extreme situations WARNING Indicates a hazardous situation that if not avoided could result in death or serious injury CAUTION Indicates a hazardous situation that if not avoided could result in minor or moderate injury The signal word NOTICE is used when there is the risk of prop erty damage NOTICE Indicates information considered important but not hazard relate
30. 5 6 SYSTem S TATus Gets the system status code 5 7 SYSTem FAULt SYSTem RESTore SYSTem SYNC SYSTem SYNC Gets the system fault code Restores all user settings to the factory state Resets the system measurement sync timer ni Borse in j co Gets the system measurement sync timer 5 8 Communications SYSTem COMMunicate HANDshaking Selects the state of SCPI message round trip hand 5 6 shaking SYSTem COMMunicate HANDshaking viris state of SCPI message round trip hand 5 6 Error Record Reporting and Collection SYSTem ERRor COUN Gets the number of error records in the error queue at 5 10 the time of the query SYSTem ERRor NEXT Gets the next error record s in the error queue 5 10 SYSTem ERRor ALL Gets all error records in the error queue at the time of 5 11 the query SYSTem ERRor CLEar Clears all error records in the error queue 5 11 Measurement Setup and Control CONFigure MEASure MODe Sets the instrument to a measurement mode of DBm 5 11 Watts or Joules CONFigure MEASure MODe Gets the measurement mode of the instrument 5 11 CONFigure MEASure SNAPshot SELect Sets the to acquire data in a burst or snap 5 12 shot fashion CONFigure MEASure SNAPshot SEL Gets status of me to acquire data in a burst or 5 12 snapshot fashion CONFigure MEASure SOURce SELect Sets the instrument to acquire data from either the 5 12 slow or fast channel CONFigure MEASure SOURce SEL Gets the current data c
31. 70 C Tuning alg eme Over Range Over Temp Negative Triggers Missing Windows System Menu Includes standard Windows activities Restore Move Size Minimize Maximize and Close Open Meter Opens a Com port connection to the meter Clear Buffer Clears the Capture buffer contents Zero Meter Measures the sensor zero baseline in all possible ranges Operation Start Starts streaming measurements Stop Stops streaming measurements Main Menu Deta fuer bieman Tigor ee E zur GIG cra Start Cut ipot feni ewigen c Power Watts Mean Power Statistics lapor 7 Expert Count 128 Mean BE1 770 mW _ r Min E1 210 mW m W red 0 28 0 56 GI chen Fm pete gre 0 83 X F Trending gjj Histogram s ide ud UU TE Bez ten neta Da Over Temp 0 Negative 0 Irigqurs Missirieg 0 Open Meter 3 Open Meter Allows you to specify the com port and open a sensor connected to a meter Close Meter ES Close Meter e Closes the current meter LabMax Pro SSIM User Manual Meter Operation Zero Meter Start Measurements Zero Meter Automatically zeros the offset on all ranges for the current sensor Changing sensors requires zeroing the instru ment Clicking Zero Meter will zero both channels in a single operation if the
32. Correction State Analog Output Full Scale Voltage 11214 Numeric Smoothing 1 99999 1 99999 Wavelength of Operation Measurement Decimation Gain Compensation State 0 001 999 000 The maximum measurement expected Gain Compensation Factor Selected Range Auto Ranging State O N Internal External 01 30 0 5 Rising Falling Trigger Source Trigger Level Trigger Edge Speedup Applied gt JABERBEEEEEEEEEE 2 z5 z5 zoi m 2 2 5 olo er 7 gt 2 Trigger Delay a PC host software settings will overwrite persistent parameters Host Interface Glossary Host Interface Factory settings Persistent settings typically set by the manufac turer These settings are parameters whose access 15 restricted by password Factory settings do not include operational parameters Ignored command query A defined response for commands or queries in which no internal or external action is taken and the command or query is dropped The meter responds to ignored commands queries as if the command query was never sent Message The transmission of a properly terminated string from host to sensor or from sensor to host Over range error A measurement error condition in which the measurement exceeds the device s measurement capability Over temperature error A measurement error condition in which the sensor s temperature exceeds the over temperature setting Reset cycle The reception
33. Output Circuitry Analog Outp ut When power is on the Analog Out SMB connector outputs a voltage proportional to the current laser measurement The output voltage 1s zero 0 volts when the measured energy or power is zero 0 or less The output voltage is the full scale output voltage when the measured energy or power is full scale or overranged The full scale output voltage 1 2 or 4V from a 50 ohm source is selected via the meter or the host interface Factory default full scale output voltage is 2V Operation PC Application Front Panel Information and controls are available via buttons and tabs that appear across the top ribbon of the window Quick Access Information Toolbar Tabs and Help Main Menu EN RAM 14 5 3 1 mW c T Panel w er i CUT i inp Graphics Statistics Panel Panel Status Bar Figure 4 7 PC Application Front Panel Home Tab Power Statistics Coen 128 z Mean 81 770 mW Min 81 210 mW W Max 82 297 mW m SidDevia 22731 W j a y d 0 28 56 e def 0 56 56 Jo u 0 83 eT Tung se Hino Dose 0 0000 W E Over re Temp i556 57 LII ES Sensor Home Type THERMO SINGLE Model PM Senal 235 Displays type model and serial number of the current sensor Shows none in the fields if either the meter is not attached to the PC or the sensor is not attached to the meter 4 5 LabMa
34. PM model ther mopile sensors and PowerMax Pro sensors High speed sampling up to 625 kHz for laser temporal pulse analysis Windows PC application included Updates are available from within the application or from the Coherent website 32 bit and 64 bit Microsoft M Windows 7 and Windows 8 compatibility Direct host command support for OEM integration The meter s internal firmware is field upgradeable so you can have access to the latest LabMax features High resolution and fast analog to digital converter supports up to five digits of resolution and measurement accuracy equivalent to that found in Coherent s other LabMax meters Meter supports spectral compensation for accurate use at wavelengths that are different from the calibration wavelength Each sensor receives a different spectral compensation curve specific to the responsivity of its specific element as well as transmission characterization of any associated optics Long pulse joules capability with thermopile sensors in Stan dard operating mode Description LabMax Pro PC Soflware Features X rum U LE Lir bu pop Power Statistics Count 20000 1 1 8 9 8 W Mean 11 898 W Min 327 67 mW Sa 27 777 W EN i er 555 StdDev c 11 509 W Plug and play application software s supplied and includes the following features Trending Feature Trend average power stabilit
35. Ror COUNt Reply count of error records stored in integer format This query gets the next error record s in the error queue More than one error record can be queried using the optional error record count parameter which must be an integer value A single error record is returned if error record count is not specified No reply is transmitted 1f no error records are available As the meter transmits each error record The error record 1s permanently removed from the error queue The queued error record count decrements by one All Error Query All Error Clear Measurement Setup and Control Measurement Mode Select Host Interface Command none Query SYSTem ERRor NEXT lt error record count gt Default is not applicable Reply lt next available error record s gt This query gets all error records in the error queue at the time of the query No reply is transmitted if no error records are available After the completion of the reply transmission The error queue is empty The queued error record count is zero Command none Query SYSTem ERRor ALL Reply all available error record s This command clears all error records in the error queue Command SYSTem ERRor CLEar Query none This command sets the instrument to a measurement mode of DBm Watts or Joules DBm Watts and Joules modes refer to a normal sampling mode Scope mode only applies to modular power probes wherein the
36. SSIM User Manual Data Options Stop On Missing Samples Retain Binary Data Upload Sequence IDs Stop On Missing Samples Controls how the software handles Missing Samples errors If checked the meter stops data acquisition and displays an error dialog If unchecked the meter continues collecting data despite the errors In either case the data buffer flags will mark the samples following the missing ones and the Measurements panel will display a indicator Retain Binary Data Instructs the meter to save the binary bytes along with each data record Using this feature will take more space and will also display a hex version of the binary data in exported files This feature is use primarily for debug ging meter communications Upload Sequence IDs Causes the meter to upload timestamps so they will appear in exported data files The meter assigns timestamps to each data sample based on an internal timer Using timestamps will impose additional data communica tions overhead This feature is used mainly for debugging Panels Measurements Panel Operation Feur ei Ma Indicators ZZ These indicators only appear when they are triggered by a specific condition as explained here OVR Appears when the input signal is gt 90 of full scale Any samples in excess of 100 full scale are truncated to the 100 level If in a fixed range select a higher rang
37. a The process works like this 1 You define the data acquisition settings including trigger settings enable Snapshot mode and press Start 2 The meter searches for a trigger and the user interface waits for the meter to start sending data 3 When atrigger is found the meter starts filling its own Capture buffer Operation 4 When the buffer is full the data is sent to the user interface which displays it 5 fthe Continuous mode checkbox 1s checked the meter auto matically loops continuing with step 2 above If Continuous mode is not selected the meter stops and awaits further instructions Related points The maximum size of the Snapshot buffer 1s 240 000 samples 384 milliseconds of data collection The Capture buffer must be at least as large as the Snapshot buffer d You can request a snapshot of any number of samples up to 240 000 A smaller number of samples will reduce the time to collect and upload them and speed up the response that displays on the user interface A sample size that is set too small may not result in a long enough collection window to view your entire pulse Remember that each sample is spaced 1 6 u Sec apart 240 000 samples may be divided between pre trigger samples and regular post trigger samples as follows 0 lt pre trigger lt capacity lt 60000 and 1 lt capacity The Snapshot mode sample rate is 1 6 wuSec sample LabMax Pro PC allows you to spe
38. aditional Radial 3 6 Basic Configuration of a PowerMax Pro Sensor essere 3 7 The Rise Time of a Typical Mid power Thermopile 30W Compared with the POWerMIX PIO oxi ob teu ae DUM M METAM 3 8 RV Spectral Correction for Thermal Sensors Normalized to Calibration Wavelength 3 9 RV Spectral Correction for PowerMax Pro Sensors Normalized to Calibration ANON TE 0 24 118 3 10 Meier Front Pan 4 1 Meter Back Panel ans ee user 4 1 External Trigser Input Circuitry ninen Oen E 4 2 Example Tisser OUIDULSCICOIS near 4 3 Boosting Source Current of Triggering 4 3 External Friseser Output 1066 ne DIS a 4 4 PC ApDphcatom udi een 4 5 Long pulse Energy Measurement with a Thermopile 4 13 LisT OF TABLES Wavelength Compensation 3 10 R5 252 Communication Selina a a I erneuern 5 2 Host Command Ouk TS Chere ariar 5 3 Status Code Bit DelttiltlODS oe dodi neo tese a nenne Aue 5 7 Fault Code Bit Definitions scene 5 7 Error Codes and Description Stine ne a a aea va eM itf e 5 0 Data Item Selections for Measurement Data Record eere
39. alibration Uncertainty k 2 Power Sampling Rate Thermopile Hz 10 PowerMax Pro Standard Speed Hz 10 PowerMax Pro High Speed Hz 20 kHz PowerMax Pro Snapshot Mode kHz 625 Analog Output VDC 0 to 1 2 or 4V selectable Measurement Analysis Trending tuning histogram data logging statistics min max mean range std dev dose stability pulse shape with PowerMax Pro in High Speed and Snapshot mode Computer Interface USB and RS 232 Pulse Triggering Internal and External Temperature Operating Range 5 to 40 C 41 to 104 F Storage Range 20 to 70 68 to 158 F Front Panel Power switch USB high speed port mini B connector Trigger output SMB connector Analog output SMB connector RS 232 port DB 9F connector LabMax Pro SSIM User Manual Table 1 Specifications Sheet 2 of 2 Parameter Description Rear Panel DB 25 sensor port External trigger input SMB connector 3 to 5 Vin 2 to 10 mA 50 ohm AC 300 ohm DC impedance Power jack 12 VDC center positive a Meter supplied with AC power adapter power cord USB cable trigger cable software and driver CD and cer tificate of calibration Persistent Refer to Persistent Parameters p 5 26 Parameters Errors APPENDIX B ERRORS Meter and Sensor Errors Table B 1 Meter and Sensor Errors reported shown next to the error in the error message the buffer contains unsaved data pre
40. box is checked Range AUTO M High Speed Mode Make sure either the laser 15 OFF or the beam 15 blocked 2 9 LabMax Pro SSIM User Manual Home tab Press the Zero button to zero the sensor A dialogue will display the zeroing process which will only take a second or two Home tab Click the Range drop down menu and select one of the two fixed ranges which signify the maximum power limits for each range Note Snapshot does not support Auto ranging Measurement tab Select your laser wavelength from the dropdown menu If your laser wavelength 15 not avail able choose the one closest to it or alternatively click on Edit Table in the menu and add your specific wave length to the Wavelength Table Data Buffer tab Verify that the Enable Snapshot Mode checkbox 15 not checked Data Buffer tab Verify that the Continuous Mode checkbox is not checked and then enter a value in the Capacity field 20 000 represents one second of data collection which should be adequate to set up Snapshot mode The purpose of this step is to V Zero Mode Power Watts Range AUTO Hig AUTO JP 17 130 W 150 00W Wavelength OFF gt rea 1 OFF Edit Table 375 nm 405 nm 514 nm Enable Snapshot Mode Change Settings Heip Da Capacity 20000 Continuous Mode i iJ confirm good data collection and proper pulse triggering Data Buffer tab Enter a Sample Count of 15
41. chart Operation Trending Window E Trending 20000 samples 0 393 thru 1 393 sec Trigger level 215 000 W y Show Trigger Markers 30000W 25000 W 15 000 W4 10000 5 0000 W 0 0000 W iL Power Watts T T T T T T T T T T T 0 3933000 03953200 03973401 03993602 04013803 04034004 04054205 04074406 Elapsed Seconds x Show Trigger Markers Trigger events become visible in the Trending display when the Show Trigger Markers dialogue is checked Trigger events are displayed as vertical red lines and the horizontal green line indicates the trigger level setting To maximize system performance the number of trigger events shown are limited to the first 20 while measurements are being taken Preview mode or the first 2000 after measurements have been taken The visual trigger markers are important for confirming good triggers are occurring before entering and gathering data in Snapshot mode After you confirm good trig gering for a particular setup system performance can be increased by turning off the visual trigger markers See the examples below In this first example measurements are in the process of being taken the screen displays only the first 20 trigger times Trending 1500 of 93587 samples 4 604 thru 4 679 sec Trigger level 215 000 W y Show Trigger Markers 30 000 W 25 000 W 20 000 W HT 15 000 W Power Watts 10 000 W Il 5
42. cify the pre trigger size and the total size either in number of samples or in microseconds rounded to the nearest 1 6 d Preview mode is disabled when Snapshot mode 15 enabled The user interface 1s updated at the completion of each Snap shot buffer upload The Continuous mode checkbox under Data Buffer Settings does apply to Snapshot mode per step 5 above d It takes approximately a third of a second for the meter to acquire 240 000 samples and another 12 seconds to upload the data In other words it takes about 12 3 seconds before you can see the data A smaller number of samples will require propor tionally less time to display the data LabMax Pro SSIM User Manual Snapshot Mode Settings Samples Duration pS Up to 240K samples or 384000 u Capacity 49639 79422 40 Pre Tngger 0 0 00 Enable Snapshot Mode Capacity The overall number of samples to collect see Spec ifying Settings below x Pre Trigger The number of samples to collect before the first trigger event see Specifying Settings below The value must be lt the selected capacity If a larger value is selected an error message appears in the dialog and the Save button is disabled Enable Snapshot Mode Activates Snapshot Mode Settings A warning message appears whenever certain errors are detected Here are a couple of examples Samples Duration u 70400 00 Samples Duration y S Up to 240K samples or 384000 pS Capacity 440
43. color GET until the laser fires and a trigger event is detected Acquisitior Fire the laser If no trigger event 1s detected the Snapshot icon Snapshot Mode Waiting m Jwill remain in the red waiting mode If this happens there are two options 1 Press the Force button next to the Snapshot icon This will force the meter into collecting Snapshot data regardless of whether or not it finds a trigger 2 Press Stop and readjust the trigger settings in High Speed mode If a trigger event 1s detected the Snapshot icon will turn green Snapshot Mode Loading su and actively display the progress of loading the data from the meter s internal Snapshot buffer to the PC application This can take several seconds depending upon the size of the Snapshot Capacity setting LabMax Pro SSIM User Manual After the Snapshot data is loaded the result is plotted in the Trending window Zoom in to observe detailed temporal pulse infor mation as shown in the examples below There are three ways to zoom a view 1 Drag the mouse to define a portion of the display 2 Use the mouse wheel to zoom in or out 3 Use the scroll bar to define a portion of the display by drag ging either the left or right handle of the scroll bar or scroll the display by dragging the scroll bar to the left or right Tuning Trending ill Histegraen TALI sevgi DOO theu DU Software Installation and Quick Start qm e
44. ctor Attach the LabMax Pro meter to the PC via a USB 2 0 High Speed port Turn on the meter Start LabMax Pro PC LabMax Pro SSIM User Manual 6 Ifa dialog screen similar to the one shown at right appears click OK e The port COMI1 does not exist 7 Main menu Click Open Meter 8 Select the COM port from the popup screen Click the Select button to close the dialog 9 View system information to confirm LabMax Pro PC 15 detecting the meter and the sensor x Close Meter Meter Operation Import Export WARNING Power to the LabMax Pro meter must be OFF before starting any of the tutorials described in this section NOTICE Do not exceed the power or energy density limits of the sensor Quick Access Toolbar Graphics Panel Status Bar Taking a Standard Speed Measurement Software Installation and Quick Start The following illustration shows the areas of the graphical user interface you will need to access while using the tutorials presented in this section Information Statistics Panel This tutorial describes how to take a standard 10 Hz sampling rate power measurement Notes This mode is compatible with both PowerMax Pro and ther mopile sensors Using a PowerMax Pro sensor in this mode provides nearly instant average power readings However because data is sampled every 100 milliseconds temporal pulse information is not displayed Use
45. ctured by Coherent are subject to U S Export Administration Regulations which are administered by the Commerce Department In addition shipments of certain components are regulated by the State Department under the Inter national Traffic in Arms Regulations The applicable restrictions vary depending on the specific product involved and its destination In some cases U S law requires that U S Government approval be obtained prior to resale export or re export of certain articles When there is uncertainty about the obligations imposed by U S law clarification must be obtained from Coherent or an appropriate U S Government agency Products manufactured in the European Union Singapore Malaysia Thailand These commodities technology or software are subject to local export regulations and local laws Diversion contrary to local law is prohibited The use sale re export or re transfer directly or indirectly in any prohibited activities are strictly prohib ited To view information that may have been added or changed since this publication went to print connect to www Coherent com To obtain the latest version of LabMax firmware 1 Download the LabMax Pro SSIM Updater executable file from our website and save it to your computer Attach the meter to the PC via USB Make sure the sensor 15 disconnected from the meter Turn the meter ON Double click the LabMax Pro SSIM Updater executable file you just downloaded and follo
46. d Messages relating to hazards that could result in both personal injury and property damage are considered safety messages and not prop erty damage messages vil LabMax Pro SSIM User Manual Symbols PPPRPP The signal words DANGER WARNING and CAUTION are always emphasized with a safety symbol that indicates a special hazard regardless of the hazard level This symbol is intended to alert the operator to the presence of important operating and maintenance instructions This symbol is intended to alert the operator to the danger of exposure to hazardous visible and invisible laser radiation This symbol is intended to alert the operator to the presence of dangerous voltages within the product enclosure that may be of sufficient magnitude to constitute a risk of electric shock This symbol is intended to alert the operator to the danger of Electro Static Discharge ESD susceptibility This symbol is intended to alert the operator to the danger of crushing injury This symbol is intended to alert the operator to the danger of a lifting hazard viii Preface RoHS Compliance Export Control Laws Compliance Publication Updates Firmware Updates Preface This manual contains user information for the LabMax Pro SSIM Laser Power Meter This Coherent product is RoHS compliant It is the policy of Coherent to comply strictly with U S export control laws Export and re export of lasers manufa
47. d parameter to otherwise valid command Device Unavailable 9 Cannot process command probe is not present LabMax Pro SSIM User Manual Error Count Query Error Query Error 350 is raised when the error queue becomes full Non Queue overflow errors are replaced by Queue overflow errors when there 1s exactly one available storage location available in the error queue No additional errors are added to the error queue if the error queue is full Error 310 1s raised when the meter firmware detects an unexpected or unrecoverable error This error condition includes unrecoverable hardware faults Error 100 is raised when the meter receives an unrecognized command or query Error 101 is raised when the meter receives a command or query with one or more invalid data parameters Error 102 1s raised when the device receives a command or query for which no valid data exists Error 200 1s raised when the device receives a command or query that 15 out of expected order of execution Error 203 1s raised when the device receives a command or query that is password protected Error 220 1s raised when the device receives a command or query that contains invalid parameters but the command is valid Error 241 1s raised when the device receives a command or query that requires a probe to be present This query gets the number of error records in the error queue at the time of the query Command none Query SYSTem ER
48. e If in AUTO or the highest range available change the configura tion to use a lower laser power level HOT Sensor over temperature Indicator Turn OFF the laser and allow the sensor time to cool MISSING Missing sample indicator This indicator appears when the meter reports that the PC was unable to upload all the sample data before a buffer internal to the meter overflows Depending on the Stop On Missing Samples option for more information refer to Data Options p 4 16 the meter will either stop and put up a dialog or continue to collect data despite the error LabMax Pro SSIM User Manual Graphics Panel Her Ear lcm uomen Tiger kaum Type THERMALSNGLE Mech Power Wum M Lis Tx up 81 770 Tuning Window I Tig _ Display View Button Reset Extrema Button lt F Dita W LER TI Bar Graph View Needle Dial View Reset Extrema Both the Bar Graph view and the Needle Dial view show the current reading and display the extrema recent minimum and maximum values in a block of contrasting color Clicking the Reset Extrema button clears the extrema and starts tracking the minimum maximum values again starting with the most recent value Extrema are local to the tuning dials and have no correlation to the numbers that appear in the Statistics panel Display View Selects the view style Bar Graph or Needle Dial that appears on this
49. e ASCII form of an 8 bit uppercase hexadecimal number Each bit has a qualification meaning as described in the following table Host Interface Table 5 8 FLAG Bit Definitions Bit Position Hex Bit Mask Qualification Meaning Calculating PTJ mode only Final energy record PTJ mode only Trigger Parameters Negative power Measurement is sped up Missed measurement a Over temperature error No qualification exists Trigger Source This command selects the trigger source Trigger Source only applies when fast channel is selected Command TRIGger SOURce INTernallEXTernal Default is INTernal Query TRIGger SOURce Reply INTIEXT Internal Trigger Level This command sets the trigger level expressed as an absolute power or energy value depending on which measurement mode is selected This command only applies when fast channel is selected Command TRIGger LEVel 0 01 maximum Range Value Default 1s 01 Watts Query TRIGger LE Vel Reply 0 01 max Value The trigger level setting has no effect when external triggering 15 selected External Trigger The external trigger settings have no effect when internal triggering is selected LabMax Pro SSIM User Manual Edge Select This command selects the external trigger edge The selected trigger edge 15 the external trigger event Command TRIGger SLOPe POSitivelINEGative Default 1s POSitive Qu
50. e entries from the probe CONFigure ITEMselect Selects data items that appear in a measurement record CONFigure ITEMselect ere data items that appear in a measurement Host Interface Table 5 2 Host Command Quick Reference Sheet 3 of 3 Gets the last recorded measurement at the time of the 5 21 query Enables data streaming for a continuous or fixed transmission SYSTem INFormation INSTrument SNUMber 5 22 SYSTem INFormation INSTrument PNUMber 5 22 SYSTem INFormation INSTrument MODel 5 22 SYSTem INFormation INSTrument CDATe 5 22 SYSTem INFormation INSTrument MDATe SYSTem INFormation INSTrument FV ER SYSTem INFormation EPGA HVER Returns the hardware version of the FPGA in the 5 23 meter SYSTem INFormation FPGA FVER a the firmware version of the FPGA in the 5 23 SYSTem INFormation PROBe TYPE Gets the currently connected probe type 5 23 SYSTem INFormation PROBe MODel Gets the currently connected probe model 5 24 SYSTem INFormation PROBe SNUMtber Gets the serial number of the probe 5 24 Gets the currently connected probe calibration responsivity SYSTem INFormation PROBe CDATe Gets the calibration date of the probe SYSTem INFormation PROBe TEMPerature Gets the head temperature of the probe 5 25 SYSTem INFormation PROBe DIAMeter Gets the probe diameter 5 25 FI gt s s SYSTem INFormation PROBe RESPonsivity N N N N np A Od Oo LabMax Pro SSIM User Manual
51. e to collect Capacity 100000 This is also the sample size used to Gana Sai calculate Statistics Check the Contin ar uous Mode checkbox if you want data collection to continue until you stop it Uncheck the checkbox to have data collection end after the Data buffer 15 full which is when it reaches the value entered in the Capacity field 7 Data Buffer tab Enter a value in the sa Buffer Sample Count field This value repre sents how many samples are displayed in the Trending chart at one time Sample Count 1500 Update Period sec 0 5 Software Installation and Quick Start 8 Graphics panel Click the Trending window Tuning Trending all Histogram 0 samples Trigger level 20 0000 W v Show Trigger Markers No data plat 9 Expose the sensor to the laser beam 10 Quick Access toolbar or Home tab Start data collection by pressing the Start icon Start Stop rus nme mm Arg OUT UOTI During data collection the data is visible in the Trending chart statistics are updating in real time based upon data entering the buffer and the Measurements panel displays a live reading Here is an example output screen m menm 6 eee on deme d d m ir Ed u Sag oe Tr Power Statistics 5176 W Count 1i 5 8813 W Min 5 3166 mW M des ilt Het lhing a 9 5176 W 101 aegra BOO n 1100 S
52. ei ali EE H il End of tutorial LabMax Pro SSIM User Manual Description SECTION THREE DESCRIPTION Introduction In this section Introduction this page Operating mode overview page 3 2 Product features page 3 4 d LabMax Pro PC software features page 3 5 Sensor technology description page 3 6 Applying wavelength compensation accuracy page 3 8 The LabMax Pro represents the next generation of Coherent s groundbreaking LabMax line This power meter combines the power and versatility of the LabMax with two new high speed sampling modes when used with PowerMax Pro technology patent pending Coherent has developed the LabMax Pro SSIM laser power meter to fully capitalize on the capabilities of PowerMax Pro sensors The meter is also compatible with PM model thermopiles in the standard operating mode LabMax Pro SSIM 15 packaged as a Smart Sensor Interface Module SSIM that interfaces with a host computer through either USB or RS 232 LabMax Pro PC a new Windows PC application then enables instrument control and displays measurement results including laser tuning and high fidelity pulse shape visualization on a host computer The software provides a wide range of analytical functions including live statistics histograms trending and data logging The user interface permits flexible sizing of informational panes within the application in which contents are auto sized dy
53. ent 2 6 Snapshot measurement 3 3 Standard Speed measurement 2 3 R RoHS compliance x RS 232 using 5 2 5 Safety 1 1 Declaration of conformity 1 2 Signal words and symbols in this manual viii Waste electrical and electronic equipment WEEE 2002 1 2 SCPI common commands 5 6 Sensor Compatibility 4 2 Technology description 3 6 PowerMax Pro sensors 3 7 Thermopile sensors 3 6 Sensors PowerMax Pro 3 7 Service obtaining 6 3 Signal words and symbols in this manual viii Signal words viii Symbols ix Snapshot mode 3 3 PC application 4 28 Software installation 2 1 Specifications 1 Meter 1 Persistent parameters A 2 Standard Speed mode 3 2 Statistics panel 4 21 Status bar PC application 4 26 Supply power 4 2 Syntax and notation conventions 5 2 System options 5 6 T Tabs PC application 4 5 Taking High Speed measurements 2 6 Snapshot measurements 2 9 Standard Speed measurements 2 3 Trigger External circuit 4 4 Tab 4 11 U Updates Firmware x Publication x USB RS 232 4 2 Using RS 232 interface 5 2 Index 2 USB interface 5 2 Limited 6 2 V Waste electrical and electronic equipment WEEE 2002 1 2 Wavelength compensation accuracy 3 8 W Applying 3 8 Warranty Extended 6 2 Limitations 6 3 Index 3 LabMax Pro SSIM User Manual Index 4 LabMax Pro SSIM User Manual Coherent Inc 5 2014 RoHS printed in the USA Part No 1269224 Rev AA
54. equest wil cancel your Snapshot Mode request leaving all other settings unchanged Then you can make whatever changes you like to the system or to your snapshot request Cancel Request Confirm Changes LabMax Pro SSIM User Manual Measurement Tab Count 128 Mean ji 81 770 mW 81 210 mW W Max 82 297 mW 227 11 pw gyi 0 28 Zo ll 0 56 Eu KT 0 83 amp Dose 0 0000 W Corrections Wavelength OFF Area 1 0000 Area crn Wavelength Selects the current wavelength To add wave lengths to the list click on Edit Table in the menu and add your specific wavelengths to the Wavelength Table To disable Wavelength Correction select OFF from the wavelength choices Area Specifies the area of the laser beam either the beam area cm or the beam diameter in cm The formula for calcu lating area from diameter 1s x diameter 2 Options Measurement Speedup Gan 10000 Smoothing Decimation 1 Speedup Speeds up the rise time of a thermopile anticipates the final reading by calculating a measurement based on an extrapolation of the first part of a measurement curve Note Use this function only with thermopile sensors Smoothing Applies a noise reducing filter to measurements This 15 a 32 sample bin average applied to the data collected in the meter Gain Applies a multiplication factor to a meter reading Gain may be any
55. ery TRIGger SLOPe Reply POSINEG Delay This command selects the external trigger delay time The internal trigger happens at the time marked by the external trigger delay time after the selected external trigger edge The trigger delay time units are microseconds Command TRIGger DELay 0 1000 Default is 0 Query TRIGger DELay Reply 0 1000 Set Sequence ID This command sets the sequence ID It must be an integer value The sequence ID is used for data synchronization of multiple meters sharing the same trigger signal Command TRIGger SEQuence 0 16777215 Default is 0 Query none Measurement Data Collection Last Data Record Query Data Gating Host Interface Measurement data can be collected in two ways Receiving measurement data records from a continuous data stream 2 Querying the last data record generated The host has control over when measurement data 1s transmitted Transmission 15 enabled after a STARt command Transmission 15 disabled after a STOP command All measurement data records are transmitted immediately as they are generated while transmission 1s enabled This query gets the last recorded measurement at the time of the query No reply is transmitted 1f no measurement has been recorded Command none Query READ Reply last measurement record The last measurement record 1s composed of comma delimited data items generated at the same instant Data items presented t
56. es you like to the system or to your snapshot request Cancel Request Confirm Changes 17 Data Buffer tab Click the Change Enable S t Mod Settings button ng Change Settings Help nn 18 19 20 Software Installation and Quick Start Data Buffer tab Adjust the capacity up or down by typing in a new value or using the slider How long a Snapshot you want to use depends on the laser pulse length and how many pulses you want to capture Samples Duration 5 Up to 240K samples or 384000 pS 240000 384000 00 In this above example the default setting is the maximum capacity of 240 000 samples which 1s collected 1n 384 milli seconds If you want to capture the portion of the first pulse before the trigger event add in some pre trigger samples If this 1s zero Snapshot will begin at the time of the trigger event which occurs after the first pulse begins Click the Save button to close the dialog Tip Reducing the number of samples allows pulses to be viewed with higher resolution in the trend chart If you do not see as high a resolution as desired try setting the capacity duration much lower such as ten times the pulse repetition period Quick Access toolbar or Home tab Start data collection by pressing the Start icon A Snapshot icon will appear in the Status bar at the bottom of the application snapshot Mode Waiting m gt This bar oscillates with a red
57. from the host interface if the measurement mode is W Watts or Joules are expressed as units per square centimeter if area correction 1s active The following information is available with each data record PRI Measurement value in 3E format when fast channel is used and 5E format for slow channel FLAG Flags refer to Table 5 8 p 5 19 SEQ Sequence number and formatted as a decimal integer The meter internally generates a data record according to the following rules With every pulse when a thermopile probe is attached and if Joules mode is selected s When a measurement sample is taken and a thermopile or optical probe is attached and if Watts mode is selected Since thermopile and optical power measurements are continuous in nature not event based as with pyroelectric probes the delivery of this data can be configured as a stream of sampled points or simply the last point recorded The presentation of the data items in a data record are in PRI FLAG SEQ order depending on which tokens are specified refer to the following table Table 5 7 Measurement Data Record Format ASCII Measurement Mode Measurement Record Format Watts or Joules lt PRI gt lt FLAG gt lt SEQ gt The FLAG data item can be used so that accompanying qualification information can be reported with each data record Qualification information includes various error conditions The flag word 15 reported in th
58. hak ne un 5 8 Error Record Reporting and ole GOD naar 5 0 Enor OR E ttn ambu RER 5 10 PHOr dentia dieti 5 10 P WI iuge OUG y OE 5 11 AIEO Clear ae aa 5 11 Table of Contents Measurement Setup and Con ol nn re 5 11 Measurement Mode 3e 6 CE nee een 5 11 Measurement Data Snapshot Mode 1 1 5 12 Measurement Data Acquisition Source 5 12 Measurement Data Acquisition Source List Query 5 12 IPS T 5 13 TEAC OPPO CMON 5 13 Analos Output Pull Seale Voltage a 5 13 Data SIOOLBID S ee nee 5 13 Wave lene i C OFTe OON uico edo obedit 5 14 Grails COMPCHS AON unseren 5 15 Probe 5 15 Pulsed Thermopile Joules Trigger 5 15 Sample Variable DEecrmolttof ddl nc n tue arena ben 5 16 Ranee oe s e MT 5 16 Data lem See anne er 5 17 Measurement Data Formal ana na 5 18 Trieser Parameter IR cc quf 5 19 Measurement Data Collection sen a a a 5 21 East Data sso ER 5 21 Die GEI i ue 5 21 Meter and Probe Device Information nes aan 3 22 Mel reed 5 22 E m 5 23 Persistent Parane eS
59. hannel 5 12 CONFigure MEASure SOURce LIST Returns a list of available source channel selections 5 12 for the attached probe 5 3 LabMax Pro SSIM User Manual Table 5 2 Host Command Quick Reference Sheet 2 of 3 CONFigure AOUT FSCale Selects the full scale output voltage at the analog output connector CONFigure AQUT FSCale Gets the full scale output voltage at the analog output connector Gets the current state of display data smoothing Gets the current state of wavelength correction CONFicure WAVElencth WAVElencth Gets the current maximum allowed or minimum 5 14 ni oia allowed wavelengths Gets the current state of gain compensation CONFigure ZERO Sets the current measurement as the zero baseline measurement TRIGger PTI LEVel Selects the Pulsed Thermopile Joules mode trigger 5 15 sensitivity level TRIGger PTI LEVel Gets the sensitivity level of the Pulsed Thermopile 5 15 Joules mode trigger CONEisureDECimation Sets the decimation rate for the fast data acquisition channel CONFigure DECimation Ns decimation rate for the fast data acquisition CONFigure RANGe SELect Selects the meter measurement range CONFigure RANGe SELect Gets the granted full scale measurement range CONFigure RANGe AUTO Enables disables automatic selection of the meter measurement range CONFigure RANGe AUTO Gets the current state of automatic selection of the meter measurement range CONFigure RANGe LIST Gets the range tabl
60. hat include flags item will vary Refer to Table 5 7 p 5 18 Start Command This command enables data streaming for a continuous or fixed length transmission An optional number of samples between 0 and 2 31 1 can be selected A value of zero is equivalent to infinity This command is ignored if data streaming transmission has already started Snapshot mode allows up to 240 000 samples Command STARt optional number of requested samples Query none Stop Command This command disables data streaming interface transmission This command is ignored if data streaming interface transmission is already disabled Command STOP Query none LabMax Pro SSIM User Manual Meter and Probe Device Information Meter Force Trigger Command This command forces a data transmission when in Snapshot mode This command does not respond with an OK if handshaking is enabled but will instead transmit data Command FORCe Query none Note An ERR 200 15 raised if the command 15 sent outside of Snap shot mode and no STARt command has been issued The sensor can be queried for information for the purposes of unit identification and quality control Serial Number The query gets the meter serial number The query is always avail able Restrict the serial number string to no more than 20 characters white space 15 not allowed Query SYS Tem INFormation INS Trument SNUMber Reply quoted meter serial number Part N
61. he sensor fall time during calibration Thermopile sensors are most commonly used for average power measurements on pulsed and CW lasers Another capability of ther mopile sensors is the ability to integrate the power of a single long laser pulse approximately 1 millisecond up to several seconds in pulse length The instrumentation analyzes the output of the thermo pile and applies the integration through the use of an algorithm that Operation results in a Joules reading This allows the thermopile to measure the energy of single pulses with a length between 1 millisecond and 10 seconds and with energies from millijoules to hundreds of Joules This capability is very useful for what are commonly called long pulse medical or industrial type lasers LabMax Pro PC supports this long pulse energy calculation when using a thermopile in the Standard operating mode nergy Jawie Count I PELF uj a 283 66 mJ m fax 288 74 mJ 1 0081 mJ my y S 7 Tuning Trending ili Histogram 1 06 tres 500 ac P410 LPT ris Ipap ue woe V thee Teper Masken ver Kange z 5 1080 are mW Figure 4 8 Long pulse Energy Measurement with a Thermopile This type of measurement requires careful selection of the appro priate power sensor based upon the laser pulse being measured A good rule of thumb for u
62. idious 3 9650 W Loi 554 15 W End of tutorial LabMax Pro SSIM User Manual Takin gad This tutorial describes how to take a high speed 20 kHz sampling Hi g h S pee d rate power measurement Measurement a High Speed mode is only compatible with PowerMax Pro sensors data point 15 sampled every 50 microseconds making this mode very useful for real time visualization of temporal shape of modulated lasers with pulse lengths hundreds of microsec onds or longer This mode also provides fast feedback about changes in power output from CW sources High Speed mode is also used to set up Snapshot mode primarily by confirming the meter is accurately trig gering on the laser pulses before moving into Snapshot mode Refer to Taking a Snapshot Measurement p 15 To avoid aliasing effects between the meter sampling rate and the laser pulses this mode cannot be used with lasers modu lated at over 2 5 kHz pulse repetition frequency Procedure 1 Complete the Initial Setup Instructions p 2 1 2 Home tab Verify the High Speed Mode Power Watts Mode checkbox is checked Range AUTO High Speed Mode 3 sure either the laser is OFF or the beam is blocked V 4 tab Press the Zero button to zero the sensor A dialogue will display the zeroing process which will only take a second or two Zero 5 Home tab Click the Range drop powerWats down menu and se
63. includes the name and address of the owner the person to contact the serial number and the RMA number you received from Coherent Customer Service 3 Wrap the product with polyethylene sheeting or equivalent material 4 Ifthe original packing material and carton are not available obtain a corrugated cardboard shipping carton with inside dimensions that are at least 6 in 15 cm taller wider and deeper than the product The shipping carton must be constructed of cardboard with a minimum of 375 Ib 170 kg test strength Cushion the instrument in the shipping carton with packing material or urethane foam on all sides between the carton and the product Allow 3 in 7 5 cm on all sides top and bottom 5 Seat the shipping carton with shipping tape or an industrial stapler 6 Ship the product to Coherent Inc 27650 SW 95th Ave Wilsonville OR 97070 Attn RMA add the RMA number you received from Coherent Customer Service Specifications APPENDIX SPECIFICATIONS Meter This appendix lists specifications for the LabMax Pro SSIM Laser Specifications Power Meter Table A 1 Specifications Sheet I of 2 Parameter Description Measurement Resolution full scale at 10 Hz speed 0 1 at 20 kHz high speed 0 2 Sensor Compatibility PM Model Thermopile PowerMax Pro Sensor dependent reference sensor specifications Accuracy 20 Digital Meter System Meter sensor Analog Output C
64. ine measurement The meter cannot zero baseline the measurement when in Snapshot mode Command CONFigure ZERO Err 200 1s raised if the meter 1s in Snapshot mode To correct exit Snapshot mode zero and then re enter Snapshot mode This command selects the Pulsed Thermopile Joules mode trigger sensitivity level Command TRIGger PTJ LEVel LOWIMEDiumlHIGH Default is LOW Query TRIGger PTJ LEVel Reply LOWIMEDIUMIHIGH Note This command only applies to thermopile probes LabMax Pro SSIM User Manual Sample Variable Decimation Range Select This command sets the decimation rate for the fast data acquisition channel which takes effect at the end of the current decimation cycle The decimation rate units are expressed samples rounded to the nearest integer Measurement data is selected for processing ranging as frequently as sample processed per 1 measured to as infrequently as 1 sample processed per 99999 samples measured Command CONFigure DECimation 1 99999 Default is 1 Query CONFigure DECimation Reply 1 99999 Error 200 is raised if the sensor is not a pyroelectric or fast channel selected Range Value Select This command selects the meter measurement range expressed in the units defined under the current measurement mode Joules or Watts The measurement range is selected by expressing the maximum expected measurement which must be greater than 0 0 The lt granted full scale range gt value
65. is the lowest available full scale range that can measure the lt maximum expected measure ment gt For example if the list of available ranges is 3 mW to 30mW and the maximum expected measurement is 10 mW the granted range will be 30 mW The granted full scale range 1s the top range available if the maximum expected measurement exceeds the top range value Command CONFigure RANGe SELect lt maximum expected measurement gt IMAXimum IMINimum Default is not applicable Query CONFigure RANGe SELect MAXimumlIMINimum Reply lt granted full scale range gt Using the optional MAX and MIN parameters on the command results in selecting the maximum or minimum available ranges respectively Using the optional MAX and MIN parameters on the query results in obtaining the maximum or minimum range full scale readings respectively Data Item Select Host Interface Auto Range Enable Disable State This command enables disables automatic selection of the meter measurement range The meter hunts for the best measurement range for the current probe and laser conditions when auto ranging is active The hunt procedure can require several samples to arrive at the best range Auto ranging applies only when fast channel 1s selected or an optical probe is attached Command CONFigure RANGe AUTO ONIOFF Default is OFF Query CONFigure RANGe AUTO Reply ONIOFF Note Error 241 1s raised if the sensor is pyroelectric or there 1s no
66. l data acquisition mode that captures high speed events For more information about how this feature works refer to Snapshot Mode p 4 28 Operation Enable Snapshot Mode Turns the mode on or off without launching the Snapshot Mode Settings dialog Change Settings Launches the Snapshot Mode Settings dialog see the last bulleted 1tem below Help Displays detailed online help for Snapshot mode x The rest of the information that appears in Snapshot Mode Settings summarizes the settings selected in the Snapshot Mode Settings dialog for more information refer to Snap shot Mode p 4 28 When Snapshot mode 15 activated a warning dialog such as the one shown below will appear if particular settings such as Range and Data Buffer are not set up correctly If this happens click the Confirm Changes button and the application will automatically adjust those settings for you You have requested Snapshot Mode Your request requires certain other mieter settings to be adjusted The current system settings have been compared with your requested Snapshot settings and some inconsistencies have been detected Snapshot Mode Prerequisite Act High Speed Mode selected Atti Range not selected Buffer capacity napshat capacity Pressing Confirm Changes will cause the indicated adjustments to be made to the meter and then snapshot mode will be enabled vath your new settings Pressing Cancel R
67. lect one of the three ung ranges that are available AUTO for Ps ad Higt sd auto range and two fixed ranges i AUTO signified by power limits High and H 17130W Low 15000W Software Installation and Quick Start Measurement tab Select your laser wavelength from the dropdown menu Wavelength OFF If your laser wavelength is not avail Area 1 OFF able choose the one closest to it or Edit Table alternatively click on Edit Table in 375 nm the menu and add your specific wave 405 nm length to the Wavelength Table 514 nm Data Buffer tab Verify that the SITUE Enable Snapshot Mode checkbox is VA ER not checked Change Settings Data Buffer tab Enter a value in the Da Capacity field that represents the sample size you would like to collect Capacity 100000 This is also the sample size used to calculate Statistics Check the Contin uous Mode checkbox if you want data Buffer Goftinen collection to continue until you stop it Uncheck the checkbox to have data collection end after the Data buffer 15 full which is when it reaches the value you entered in the Capacity field Continuous Mode Tip If the application displays a Missing warning it means data was lost while transferring the data in real time from the meter s buffer to the PC This usually occurs because the computer is not able to keep up with the high rate of data continuously streaming from the meter If this wa
68. lines for Evaluating and Expressing Uncertainty NIST Technical Note 1297 1994 Edition The combined accuracy of the measurement is calculated by using the law of propagation of uncertainty using root sum of square square root of the sum of squares some times described as summing in quadrature where Measurement Accuracy JU where U Percent Calibration Uncertainty W Wavelength Accuracy Coherent uses several coatings to capture the incident radiation on thermal sensors The specifications list which coating is for each sensor Typical wavelength ranges and response curves for these coatings are shown below Each sensor has a spectral curve gener ated from reflectance measurements taken with spectrometers or direct laser lines The reflectance data are converted into a wave length compensation look up table that 1s loaded into the sensor This data 1s accessed by selecting a wavelength of operation in the software Black Coating with Quart Window Broadband Coating Coating 1 10 Wavelength um Figure 3 6 RV Spectral Correction for Thermal Sensors Normalized to Calibration Wavelength LabMax Pro SSIM User Manual Absorber Spectral Reflectivity 100 4 Broadband Coating HD Coating an Reflectivity un Wavelength Figure 3 7 RV Spectral Correction for PowerMax Pro Sensors Normalized to Calibration Wavele
69. ly lt iSize gt This command sets the instrument to acquire data from either the slow or fast channel Pyroelectric probes only use the FAST channel whereas thermopile and optical probes only use the SLOW channel setting PowerMAX Pro probes can use both channels but not simultaneously Command CONFigure MEASure SOURce SELect SLOW FAST Default is SLOW Query CONFigure MEASure SOURce SEL Reply SLOW FAST Note if no probe is attached a value of SLOW 15 returned This query returns a list of available source channel selections for the attached probe Query CONFigure MEASure SOURce LIST Reply SLOW FAST Note If no probe is attached a value of SLOW is returned Speedup Area Correction Analog Output Full Scale Voltage Data Smoothing Host Interface This command sets the speedup state The query gets the speedup state Command CONFigure SPEedup ONIOFF Default is OFF Query CONFigure SPEedup Reply ONIOFF Error 100 1s raised if the sensor is an optical or fast channel 1s selected Enable Disable State This command enables disables area correction Command CONFigure AREA CORRection ONIOFF Default is OFF Query CONFigure AREA CORRection Reply ONIOFF Aperture Area This command sets the aperture area expressed in square centime ters cm Command CONFigure AREA APERture 0 01 500 00 Default 1s 1 0 Query CONFigure AREA APERture Reply 0 01 500 00 This command
70. namically as the panes are adjusted letting the user size the infor mation of greatest importance Also a complete set of host commands can be sent through either the USB or RS 232 interface which is useful for embedded applications Besides PC interfacing LabMax Pro SSIM also includes an analog output with user selectable voltages of 0 to I V 2V or 4V Triggering is done with either an external trigger input or a user adjustable internal trigger LabMax Pro SSIM User Manual Operating Mode Overview Standard Speed Mode High Speed Mode LabMax Pro SSIM uses three operating modes Standard Speed M High Speed x Snapshot These are discussed next The Standard Speed operating mode of the LabMax Pro SSIM uses a typical 10 Hz sampling rate At this data rate PowerMax Pro sensors supply a nearly instantaneous power reading similar to a photodiode while also taking advantage of the sensor s ability to directly read very high powers The standard operating mode is best used to measure the power of CW lasers or the average power of high repetition rate lasers High speed mode operates at a continuous data sampling rate of 20 kHz permitting pulse shape analysis of modulated lasers with repetition rates up to 2 5 kHz These types of pulse trains are common in many laser based medical treatments and some material processing applications such as micro welding Figure 3 1 below shows data collected using a 20W laser to
71. nel refer to Statistics Panel p 4 21 always shows the actual number of trigger events present in the buffer at the time of the display update Statistics Panel Operation Histogram Window Per Harteuram Hambar Hategrass Bei T Sprech Hrttosgram large Pelr and Mar Me range T Comepune Range from actual daa fessum ALITI mr b tera 128 sampler ma DET menLogekeD eua T3 Histogram Settings Determines which options will be displayed in the Histogram window Piore ints rd Tugg ka Tyee paraang Made Pee em 7 hb Sit Range 3 0000 Wi Dear imet Export Power Watts Mean 81 770 TT Tuning it Trending gl Histogram ee T redd Statistics Panel Selection Menu y Show Count Show Mean Show Min Show Max Show StdDev Show Show 2a y Show Show Over Range Show Over Temp Show Negative Show Missing Samples SS 6 Show Triggers i NOW HU Save Statistics d Right click the Statistics panel to display the menu Toggle the checkbox next to a statistic to show or hide it 4 21 LabMax Pro SSIM User Manual Quick Access This toolbar offers several buttons for easy access to common func Toolbar 1 Home feb hee Leet o Were we Mene Power m gt Range 2 0000 I A XS echa Ld Power Watts Mean 81 7
72. ngth Table 3 1 Wavelength Compensation Accuracy Sensor Wavelength Compensation Calibration Accuracy Wavelength nm All PM model thermopiles 10600 a Refers to wavelengths different from the calibration wavelength Operation SECTION FOUR OPERATION In this section Hardware this page PC Application p 4 5 Hardware Power Switch Trigger Output Analog Output Connector Type SMB Connector Type SMB Figure 4 1 Meter Front Panel External Trigger Input Connector Type SMB Figure 4 2 Meter Back Panel LabMax Pro SSIM User Manual Sensor Compatibility USB RS 232 Power Supply External Trigger Input J3 73100 0103 Triegerln TrielnReiurn 1 7 PowerMax Pro PM model thermopiles LabMax Pro requires a USB 2 0 Hi Speed USB to communicate with the PC RS 232 connections are intended for OEM integration and will result in reduced data transfer rates Power 1s supplied through an external 12 VDC 15W power supply included To prevent ground loop noise from interfering with accurate measurement the external SMB trigger input is optically isolated from the LabMax Pro internal ground by an optoisolator The following figure shows a simplified schematic of the external trigger input circuitry C32 GND E 1OnF U3 lriglnClamp PS9821 1 F3 AX R135 C227 0M Ink IKV Chassis GND Trigger Input Figure 4 3 Exte
73. nt ee ua 2 9 Section Three Description 1 TC 3 PVC OCHS ON E 3 Operating Mode OVeLVIe tei uaa ne ia as orc dient oed 3 2 otandard Speed Mole unten ae rin 3 2 Hie N SO sso Modena ee ae nee us 3 2 SHapshor Mode ee ee ee ee 3 3 Product nee er ee 3 4 EabMax Pro software Features na een 3 5 Sensor lechnolosy Descrip Onl uma ana codes a u 3 6 Thermopile Se SODS 3 6 Power Max ee 3 7 Applying Wavelength Compensation 3 8 Wavelength Compensation 3 9 Section Four Operation sss 4 1 PON are ee ea 4 1 SENSO C Ompa DIN naa a ee 4 2 ii M 4 2 POWer SUDDL a ene re er 4 2 External Trisser Input u deca wt craton sate 4 2 External beu dini une a 4 4 Analos 4 4 iii LabMax Pro SSIM User Manual 4 5 Front Pi 4 5 be E DEED a een 4 5 Home Tabs ER 4 5 Data Buiter Tab sen 4 7 Meas 4 10 Teper ID 4 11 Tabea anne 4 14
74. nuous mode will stop the buffer before it is full Preview Buffer Settings ta Buffer Sample Count 1500 Update Period sec 0 5 LabMax Pro PC maintains a separate buffer for displaying data acquisition progress The Data buffer collects all the acquisition data but a separate Preview buffer periodically refreshes the user interface with just a subset of the most recent data Sample Count Specifies number of preview samples used by the Preview buffer This defines the amount of data plotted across the horizontal axis in the Trending display for all modes Update Period Specifies the refresh period in seconds that the Preview buffer uses to extract the most recent capacity samples The fewer the seconds the faster the update This setting applies to high speed data acquisition only While data collection 1s 1n progress only data captured inside the Preview buffer 1s displayed in the Trend chart After data collection ends either by filling the Acquisition buffer or by hitting Stop while in Continuous mode the Trend chart will display the entire contents of the Capture buffer If the user interface becomes sluggish or unresponsive either lower the Sample count or increase the Update period to reduce or eliminate the problem Snapshot Mode Settings high speed data acquisition only Samples Duration 5 Enable Snapshot Mode Capacity 240000 384000 Pre Trigger 0 0 Change kaip This 15 a specia
75. of a reset command or the action of disconnecting power and then reconnecting power to the sensor Either event sets all non persistent operational parameters to their default settings LabMax Pro SSIM User Manual Calibration and Warranty SECTION SIX CALIBRATION AND WARRANTY Calibration Coherent Calibration Facilities and Capabilities In this section Calibration this page x Coherent calibration facilities and capabilities this page Limited warranty page 6 2 Extended warranty page 6 2 Warranty limitations page 6 3 Obtaining service page 6 3 Product shipping instructions page 6 4 Coherent laser power and energy meters are precision instruments capable of delivering very accurate measurements as well as providing many years of useful service To maintain this high level of performance it is important to have your measurement system serviced and recalibrated once a year As the largest laser manufacturer in the world Coherent has been able to build state of the art calibration facilities containing the widest possible range of laser types and technologies This enables us to perform instrument and sensor calibration under virtually any combination of wavelength power and operating characteristics Sensors are calibrated against NIS T traceable working standard sensors which are in turn calibrated against NIST calibrated golden standard sensors These working and golden standards are main
76. ollowing figure Conventional thermopile with radial heat flow Long Heat z Laser Flow Path Diameter cm Figure 3 3 Construction of a Traditional Radial Thermopile In operation incident laser energy falls on the absorbing disk in the center of the detector and is converted into heat This disk 15 typi cally coated with a material that absorbs light over a very broad wavelength range to increase sensitivity The heat then flows across 3 6 PowerMax Pro Sensors Description the width of the thermopile disk to the heatsink which 15 held at a near constant ambient temperature by either air or water cooling The temperature difference between the absorber and heatsink 1s converted into an electrical signal by the thermocouples Calibrated electronics in the meter convert this electrical signal into a laser power reading Thermopile sensors have several advantages including an extremely broad spectral range an ability to work over a wide range of input powers high laser damage resistance and uniform spatial response meaning insensitivity to changes in beam size position or uniformity The limitation of the technology 1s that the transfer of heat across the width of the thermopile disk makes this technology inherently slow Specifically it often takes several seconds before the heat flow caused by the laser reaches equilibrium and the power measurement becomes stable on the display Physically larger sensors take
77. ommands and queries 5 6 Communications 5 8 Compatibility sensor 4 2 Compliance Export control laws x RoHS x Conformity declaration of 1 2 D Data buffer tab 4 7 Declaration of conformity 1 2 Description sensor technology 3 6 E Errors Meter and sensor B 1 Record reporting and collection 5 9 Export control laws compliance x Extended warranty 6 2 External Trigger input 4 2 Trigger output 4 4 F Features LabMax Pro PC software 3 5 Product 3 4 Firmware updates x Front panel PC application 4 5 G Glossary host interface 5 27 Graphics panel 4 18 H Hardware 4 1 Analog output 4 4 External trigger input 4 2 External trigger output 4 4 Power supply 4 2 Sensor compatibility 4 2 USB RS 232 4 2 High Speed mode 3 2 Index INDEX Home tab 4 5 Host command quick reference 5 3 Host interface Commands and queries 5 6 Communications 5 8 Error record reporting and collection 5 9 Measurement setup and control 5 11 SCPI common commands 5 6 System options 5 6 Glossary 5 27 Host command quick reference 5 3 Measurement Data collection 5 21 Meter and probe device information 5 22 Persistent parameters 5 26 2 RS 232 interface using 5 2 Special considerations 5 1 Message terminators 5 1 Syntax and notation conventions 5 2 Using the RS 232 interface 5 2 Using the USB interface 5 2 Syntax and notation conventions 5 2 USB interface using 5 2 I Information and help PC application 4 31 Initial setup instruc
78. p the product to the Company or a repair station Customer shall package the product to protect from damage during shipping and ship it to the address specified by the Company shipping prepaid The customer shall pay the cost of shipping the Product back to the Customer in conjunction with recalibration and recertification the Company shall pay the cost of shipping the Product back to the Customer in conjunction with product failures within the first twelve months of time of sale or during an extended twelve month warranty period A Returned Material Authorization number RMA assigned by the Company must be included on the outside of all shipping packages and containers Items returned without an RMA number are subject to return to the sender LabMax Pro SSIM User Manual For the latest Customer Service information refer to our website www Coherent com Detailed instructions on how to prepare a product for shipping are given under Product Shipping Instructions below Table 6 1 Coherent Service Centers E mail 1 800 343 4912 503 454 5777 info service Coherent com Europe 49 6071 968 0 49 6071 968 499 info service Coherent com 503 454 5700 503 454 5777 info_service Coherent com Product To prepare the product for shipping to Coherent Ship Ing Contact Coherent Customer Service refer to Table 6 1 above Instructions for a Return Material Authorization number 2 Attach a tag to the product that
79. pecified Reply allowed maximum wavelength in nm if MAXimum is specified Reply allowed minimum wavelength in nm if MINimum is specified Query Probe Wavelength Table This command gets the wavelength table entries from the probe Each wavelength is expressed in units of nm rounded to the nearest integer Each wavelength ranges from 1 to 99999 Note that the list returned by the query always includes the calibration wavelength of the current probe The list does not include the selected operational wavelength Query CONFigure WAV Elength LIS T Reply comma separated list of wavelengths Error 241 1s raised if no probe is attached Gain Compensation Probe Zero Pulsed Thermopile Joules Trigger Level Host Interface Enable Disable State This command enables disables gain compensation which is committed to persistent storage when it 1s changed Command CONFigure GAIN COMPensation OFFION Default is OFF Query CONFigure GAIN COMPensation Reply OFFION Factor This command sets the gain compensation factor which 15 committed to persistent storage when it is changed The gain compensation factor has no units Error 101 is raised if the gain compensation factor is less than 0 001 or greater than 100 000 0 Command CONFigure GAIN FACTor lt 0 001 100000 0 gt Default 15 1 0 Query CONFigure GAIN FACTor Reply gain compensation factor This command sets the current measurement as the zero basel
80. probe Query Probe Range List This command gets the range table entries from the probe Each range is expressed in units of Power or Joules Query CONFigure RANGe LIST Reply comma separated list of available ranges Error 241 is raised if no probe is attached Data items that appear in a measurement data record are selectable The data argument is a comma separated list that consists of one or more tokens shown in Table 5 6 below At least one token must be specified The tokens can be specified in any order Command CONFigure ITEMselect PRLFLAGSEQJ Default 15 PRI Query CONFigure ITEMselect Reply one or more of PRIIFLAGISEQ Table 5 6 Data Item Selections for Measurement Data Record Data Description Result Expression in Data Record Primary data value includes Watts or Joules Scientific notation for example 2 88E 3 FLAG 16 bit hexadecimal integer form Sequence ID 32 bit unsigned integer form LabMax Pro SSIM User Manual Measurement Data Format ASCII Data Record Format Data records are sent to the host in ASCII text A data record is a set of one or more comma delimited data values generated at the same instant ending in lt CR gt lt LF gt The selected meter measurement mode controls the type of measure ment data that is sent over the host interface The user receives energy readings from the host interface if the measurement mode 15 J The user receives power readings
81. r Messages Sent by the Meter In this section Special considerations this page x Host Command quick reference p 5 3 Commands and queries p 5 6 Persistent parameters p 5 26 5 Host Interface glossary p 5 27 Messages between the meter and the host computer will be comprised entirely of ASCII string characters with the exception of the binary data streaming transmission which sends unsolicited binary encoded data All ASCII message strings passing through the host interface will be terminated to signal the end of a message string Messages received by the sensor must be terminated by a carriage return decimal 13 Line feed characters decimal 10 will be discarded so message terminator flexibility can be attained A command or query will be considered incomplete without the termi nator The maximum length of any message received by the meter will be limited to 200 bytes messages sent by the meter with the exception of binary streaming data will be terminated by a carriage return decimal 13 and line feed decimal 10 pair LabMax Pro SSIM User Manual Using the RS 232 Interface Data Flow Control No software or hardware flow control methods for serial communi cation will be used Baud Rate and Other The host must use a fixed baud rate setting of 115200 8 bit 1 stop Communication bit no parity Refer to the following table Settings Table 5 1 RS 232 Communication Settings Baud 115200
82. ress This query returns the system type string For example a typical type string looks like SSIM Note The quotes are not transmitted Command none Query SYSTem TY PE Reply SSIM Host Interface System Status This query gets the system status code The status code is returned in a string expressed in uppercase hexadecimal integer form The 32 bit word represents a bit mapped status indicator Table 5 3 describes the status condition bit mapping Table 5 3 Status Code Bit Definitions Bit Label Status Description 00000004 Probe Attached valid probe is attached 00040000 Zeroing Zeroing is in progress Applies to Joules mode only when a power probe is attached Ready Calculating 1 00100000 FPGA updating FPGA firmware update in progress 80000000 System Fault A system fault occurred check SYSTem FAULt Command none Query SYSTem STATus Reply status System 00080000 Ready Calculating As an example if a probe is found but there 1s a general fault the system status query returns 00040004 Probe attached and ready to use meter zeroing in prog less System Fault This query gets the system fault code The fault code is returned in a string expressed in uppercase hexadecimal integer form The 32 bit word represents a bit mapped status indicator Table 5 4 describes the fault condition bit mapping Table 5 4 Fault Code Bit Definitions 2 3 4 pon 9
83. rnal Trigger Input Circuitry Operation Figure 4 4 shows examples of trigger outputs i ume Ski E Soi din fr B Hi Yellow external trigger input Blue optocoupler to output logic Coupling t A ai pc AC Type source Coupling M Level em Edge 11 D y u 1 08 V Hoidon 5 00 i k Hy nis invert Bandwidth j on see Figure 4 4 Example Trigger Output Screens Trigger input pulse should be 3 to 6V 500 nS pulse from a 50 ohm source If a current source is used the minimum trigger current is 5 mA One possible buffer circuit is shown in Figure 4 5 5V Buffer Circuit Instrument Trigger Signal Common LabMax Trigger In BNC Figure 4 5 Boosting Source Current of Triggering Device LabMax Pro SSIM User Manual The external trigger signal can be either a rising or a falling edge Trigger polarity is selected in the SETUP Trigger menu NOTICE Trigger signals greater than 7 VDC can damage the optoisolator and should be avoided External Trigger The Trigger Out SMB connector is a 15 nS 5V pulse from a 50 ohm Output source It 1s designed to cascade into another device s trigger input HSV5 C95 T 100 m INC wy J5 73100 0103 1 R122 2 00 Trigger Output Figure 4 6 External Trigger
84. rning occurs ensure the USB connection is USB 2 0 Hi Speed port and close other open applications Another option is to reduce the Capacity buffer size You can also export the data file to examine the error indicators to determine where and how much data was lost 9 Data Buffer tab Enter a value in the a Buffer Sample Count field This value repre sents the number of samples you want displayed in the Trending window at one time Sample Count 1500 Update Period sec 0 5 LabMax Pro SSIM User Manual 10 Graphics panel Click the Trending window Tuning Trending all Histogram 0 samples gt DR level 0 0000 W v Show Trigger Markers No data plat 11 Expose the sensor to the laser beam 12 Quick Access toolbar or Home tab Start data collection by pressing the Start icon gt il Start l F Eu gus on 1 During data collection the data is visible in the Trending chart statistics are updating in real time based upon data entering the buffer and the Measurements panel displays a live reading Here 1s an example output screen ERE E _ 24 792 SHIHI AEREE End of tutorial Taking a Snapshot Measurement Software Installation and Quick Start This tutorial describes how to take a Snapshot 625 kHz sampling rate power measurement Notes Snapshot mode is only compatible with PowerMax Pro sensors This 1s
85. sensor supports both high speed and low speed Start Measurements Begins acquiring measurement readings using the current settings Most operating controls are disabled while acquisition is in progress Stop Measurements Stops acquiring data Import Export x Clear Buffer E Restore System Defaults Import Data or aF Import Settings gu iy Export Settings Clear Buffer Clears Capture buffer of all previous data Restore System Defaults Resets all internal settings to factory default Import Data Loads Capture buffer with the contents of an external csv tsv or txt file generally a file previously saved in LabMax Pro PC Export Data Saves the content of the capture buffer to an external csv tsv or txt file The csv file format contains comma separated values whereas the tsv and txt file formats contain tab delimited values These two formats are included to support the use of different decimal mark and thousands separator symbols a dot or a comma Import Settings Restores applications settings that were previ ously saved exported to an external file d Export Settings Saves the application settings to an external file Operation View E Measurement Panel m Graphics Panel hv Statistics Panel eee 0 Show System Info tn S E Show IO Transcript 4 Show Error Log Edit Wavelengths Table
86. serve the data Hardware Incompatibility Software is connected to a meter that has Install newer firmware or software or Standard Mode vs Snapshot Deselecting High Speed mode in the Press Yes to disable Snapshot mode and Mode Conflict Home tab while Snapshot mode is change to Standard mode or press No to enabled in the Data Buffer tab remain in High Speed and Snapshot mode marked with the Missing Data flag Restored to Default with non factory default user settings restoring the factory defaults Meter was disconnected Snapshot Mode Setting Not all requirements have been met for Click Confirm Changes to make necessary Conflict entering Snapshot mode setting adjustment and enable Snapshot mode or click Cancel Request to leave all settings unchanged Unable to launch Updater Software is unable to find the updater Reinstall the software Program application when you press the Check for Updates button Unable to Open Meter on Port not connected to a meter or another Select an available Com port COMI application is using the port Unexpected Error Encounter Unexpected error condition Reference the specific corrective action shown next to the error in the error message unrecoverable errors require you to exit the application LabMax Pro SSIM User Manual Analog output 4 4 Application 4 5 Applying wavelength compensation accuracy 3 8 C Calibration 6 1 Coherent calibration facilities and capabilities 6 1 C
87. sing a thermopile for this type of measurement is to compare the maximum pulse energy you need to measure in Joules with the maximum power rating of a sensor in Watts Frequently a sensor like the PM150 50C is ideal for these measure ments It features a large 50 mm aperture size handles pulse ener gies up to 150J and can be used air cooled for single pulse energy measurements A PM150 50C normally needs to be water cooled for continuous power measurements The 5 190 sensor on the other hand permits long pulse measurements down to the mJ level For an up to date list of all compatible sensors and their specifica tions go to www Coherent com LMC LabMax Pro SSIM User Manual View Tab Visible Panels W Measurements Graphics Statistics M pe ET INI These three items control the visibility of the primary panels in the user interface As many as two of the three panels can be hidden at the same time Visible Windows System Information Transcript Error Messages System Information Summarizes most meter and sensor settings I O Transcript Shows transcript of communication between the user interface and the meter this feature does not present high speed data Error Messages Reports errors detected by the system Operation Output Formats View Resolution 5 Digits Analog Out 1 0 VDC Measurements Mean Resolution Controls the resolution of real number displays
88. site www Coherent com Coherent provides telephone and web technical assistance as a service to its customers and assumes no liability thereby for any injury or damage that may occur contemporaneous with such services These support services do not affect under any circumstances the terms of any warranty agreement between Coherent and the buyer Operation of any Coherent laser with any of its interlocks defeated is always at the operator s own risk ii Table of Contents TABLE OF CONTENTS Signal Words and Symbols in this Manual eeeeeeessssseesesee enne vii WV OOS TE vii viii Pe P T 1X ROMS COMIp HAN CC a dac seit tu pe a be 1X Export Contor Laws COmpianCe eee hoe 1 Publication Wp ates aeg 1 Firmware Sousse Dirham 1 Section One Safety 1 1 Waste Electrical and Electronic Equipment WEEE 2002 sese 1 2 D claratton OL are 1 2 Section Two Software Installation and Quick Start 2 1 SOR ware InstallatlOno auditi seele u ter dU 2 32 5 0 trie rebote I ieee 2 Taking a Standard Speed Measurement sence ae a 2 3 Taking a Then Speed Measurement Eee 2 6 a Snapshot Measureme
89. th valid data reply as explicitly defined else where in this section followed by OKN n Valid commands or queries which result in an error reply with ERR lt n gt r n where n is the error code number see Error Record Reporting and Collection below Unrecognized commands or queries reply with ERR100 r n Error queuing occurs as explicitly defined elsewhere in this section If handshaking is OFF All command and query response behavior is explicitly defined elsewhere in this section Programming and system errors occasionally occur while testing or debugging remote programs and during measurement Error strings follow the SCPI Standard for error record definition lt error code gt lt quoted error string gt The host queries for errors in two steps First the host queries for the number of error records available N and second the host queries N times for the error records Errors are stacked up to 20 deep In the case of error overflow the last error in the error list is an indication of error overflow The possible error strings are shown in Table 5 5 below Table 5 5 Error Codes and Description Strings uid Quoted Error String Error Description Data error A data error was encountered 99 Invalid parameter The command or query parameter is invalid 99 Execution Order Command issued out of order Command Protected Command is password protected Parameter Problem Invali
90. tions 2 1 Input external trigger 4 2 Installation software 2 1 Instructions Initial setup 2 1 Product shipping 6 4 L LabMax Pro PC software features 3 5 Limitations warranty 6 3 Limited warranty 6 2 M Main menu PC application 4 23 Measurement Data collection 5 21 High Speed 2 6 Setup and contro 5 11 Snapshot 2 9 Standard Speed 2 3 Measurements panel 4 17 Meter and probe device information 5 22 and sensor errors B 1 Specifications 1 Index 1 LabMax Pro SSIM User Manual Mode High Speed 3 2 Snapshot 3 3 Standard Speed 3 2 Obtaining service 6 3 Operating mode overview 3 2 High Speed 3 2 Snapshot 3 3 Standard Speed 3 2 Operation Hardware 4 1 PC application 4 5 Output Analog 4 4 External trigger 4 4 Overview operating mode 3 2 Panels PC application 4 17 Parameters persistent A 2 PC application 4 5 Front panel 4 5 Information and help 4 31 Main menu 4 23 Panels 4 17 Graphics 4 18 Measurements 4 17 Statistics 4 21 Quick access toolbar 4 22 Snapshot mode 4 28 Status 4 26 Tabs 4 5 Data buffer 4 7 Home 4 5 Measurement Tab 4 10 Trigger 4 11 View 4 14 Persistent parameters 5 26 2 Powersupply 4 2 PowerMax Pro sensors 3 7 Preface x Product Compliance Export control laws x RoHS x Features 3 4 Shipping instructions 6 4 Specifications 1 Publication updates Q Quick Access toolbar PC application 4 22 Reference host command 5 3 Quick start High Speed measurem
91. ual Trigger tab Keep repeating this process until trigger events are occurring as expected Trending 20000 ssm ples 0 393 thru 1393 see Tngger level 215 000 Wf Show Trigger Markers 30 000 VW 25 000 W 20 000 15 000 Fon Watts z 5 0000 00000 W 03033000 0395300 03973401 0399362 04023803 040314004 04054205 04072405 Elacandl Seconds Now that trigger events are occurring and pulses are properly displaying it s time to move into Snapshot mode 15 Data Buffer tab Check the Enable Snapshot Mode checkbox napsho Change Settings Help nn 16 When Snapshot mode is activated a warning dialog such as the one shown below will appear 1f particular settings such as Range and Data Buffer are not set up correctly If th s happens click the Confirm Changes button and the application will automatically adjust those settings for you You have requested Snapshot Mode Your request requires certain other Teter settings to be adjusted The current system settings have been compared with your requested Snapshot settings and some inconsistencies have been detected Pressing Confirm Changes will cause the indicated adjustments to be made to the meter and then snapshot mode will be enabled vath your new settings Pressing Cancel Request wil cancel your Snapshot Mode request leaving all other settings unchanged Then you can make whatever chang
92. umber The query is always available Restrict the part number string to no more than 20 characters Query SYSTem INFormation INS Trument PNUMber Reply quoted part number Model Name The query gets the model name The query is always available Query SYSTem INFormation INSTrument MODel Reply quoted model name Calibration Date The query gets the calibration date The query is always available Restrict the date string to no more than 20 characters Query SYSTem INFormation INSTrument CDATe Reply quoted calibration date Probe Host Interface Manufacturing Date The query gets the manufacturing date The query is always avail able Query SYSTem INFormation INS Trument MDATe Reply quoted calibration date Firmware Version This query returns the firmware version of the meter Query SYSTem INFormation INSTrument FVER Reply firmware version FPGA Hardware Version This query returns the hardware version of the FPGA in the meter Query SYSTem INFormation FPGA HVER Reply hardware version FPGA Firmware Version This query returns the firmware version of the FPGA in the meter Query SYSTem INFormation FPGA FVER Reply hardware version This query gets the currently connected probe type Command none Query SYSTem INFormation PROBe TY PE Reply lt type gt lt qualifier gt type NONE THERMO PYRO or qualifier NONE SINGLE QUAD
93. urce Specifies the trigger source External electrical input via the trigger input connector or Internal analysis of the measurement by the meter x Edge Selects the internal trigger edge Positive rising edge or Negative falling edge x Delay Specifies the trigger delay which instructs the meter to delay data capture until a specific amount of time following a trigger event Trigger Bus not yet implemented er Long Pulse Energy Mode Trigger Level Medium This mode specifies a way of calculating the energy of a pulse from a power measurement Long Pulse Energy Mode is activated by attaching a thermopile sensor and selecting Energy Joules from Operating Mode d Trigger Level Selects the trigger level Low Medium or High It is recommended that you view the Trending Screen when oper ating in this mode and make sure the View Triggers checkbox 15 checked Press Start to begin data collection then send individual pulses to the thermopile The thermopile response can be seen in the trending screen along with yellow trigger lines that mark the begin ning and ending of a pulse calculation After a calculation is made the energy will be displayed in the Measurement Pane Note You may notice the 2nd yellow calculation marker is displayed before the sensor reaches baseline after each pulse We are able to calculate the energy within the pulse before the tail of the pulse reaches baseline because we measure t
94. user can receive a filtered or raw dimensionless ADC count for every acquired sample DBm ratio of power to 1 milliwatt Watts derived unit of power defined as joules per second Joules derived unit of energy defined as the amount of work required to produce one watt of power for one second Command CONFigure MEASure MODe J IW Default 15 W Watts Query CONFigure MEASure MODe Reply J W Note If a probe is unattached re attached this command returns to the default setting of Watts 5 11 LabMax Pro SSIM User Manual Measurement Data Snapshot Mode Select Measurement Data Acquisition Source Select Measurement Data Acquisition Source List Query This command sets the instrument to acquire data in a burst or snap shot fashion This command query only applies to PowerMAX Pro probes Command CONFigure MEASure SNAPshot SELect ON OFF Default is OFF Query CONFigure MEASure SNAPshot SEL Reply ON OFF Note If no probe is attached a value of OFF is returned Err 200 is raised if CONFigure MEASure SOURce SEL SLOW 15 selected Snapshot Pre Trigger Buffer Size Select This command sets the pre trigger buffer size in samples This spec ifies the number of pre trigger to be displayed on output after a trigger event This command query only applies to PowerMAX Pro probes Command CONFigure MEASure SNAPshot PREbuffer lt iSize gt Default is 0 Query CONFigure MEASure SNAPshot PREbuffer Rep
95. w the instructions p ge oa I 1X LabMax Pro SSIM User Manual Safety SECTION ONE SAFETY Carefully review the following safety information to avoid personal injury and to prevent damage to this meter or any sensor connected to it This equipment contains no user serviceable parts For service information refer to Obtaining Service p 6 3 WARNING The use and measuring of lasers is potentially dangerous This instrument operates over wavelengths that include non visible laser emissions Proper laser operating practice in accordance with manufacturer recommendations is vital Eyewear and other personal protective equipment must be used in accordance with applicable laws and regulations If 1n doubt of correct operating procedures consult the laser manu facturer and your laser safety officer The equipment is not for use in critical medical environments WARNING Do not operate this instrument if its panels are removed or any of the interior circuitry is exposed WARNING Do not operate this instrument in wet or damp conditions or in an explosive atmosphere NOTICE Operate this instrument only within the specified voltage range LabMax Pro SSIM User Manual Waste Electrical and Electronic Equipment WEEE 2002 Figure 1 1 Declaration of Conformity NOTICE Do not operate this instrument if there are suspected failures Refer damaged equipment to qualified Coherent service personnel
96. x Pro SSIM User Manual Operating Mode Mode Power Watts Range 3 0000 W Mode Selects the primary measurement that will be performed by the meter Power Watts or Energy Joules Range Indicates the full scale range to be used for measure ments AUTO instructs the meter to adjust ranges upward or downward depending on the signal level AUTO is not allowed for certain operations such as when taking measure ments in Standard Speed or when using Snapshot Mode for more information refer to Snapshot Mode p 4 28 i High Speed Mode Initiates high speed data acquisition at a 20kHz sampling rate High speed acquisition acquires samples faster than Standard Speed acquisition but the numerical resolution is lower Note that High Speed mode is required when using Snapshot Mode for more information refer to Snapshot Mode p 4 28 When High Speed mode is unchecked the meter samples the power channel at a rate of 10 Hz This is the only mode available for thermopiles High Speed mode is available when using PowerMax Pro technology and is typically used to analyze modulated lasers with pulse lengths greater than 10 microsec onds Acquisition Start Start Starts sending measurement data Stop Ends measurement data collection Data Buffer Lx tL Clear Import Export i Clear Discards all data in the data acquisition buffer x Import Loads the acquisition from an external file x Export
97. y over time Visualize and track pulse shape and peak power High fidelity resolution of temporal pulses greater than 10 microseconds Statistics mean minimum maximum stability and standard deviation Export comma or tab delimited data for analysis in a spread sheet such as Microsoft Excel M or import directly back into LabMax PC application Tuning needle dial bar graph Histogram Run multiple instances of software to operate multiple sensors concurrently LabMax Pro SSIM User Manual Sensor Technology Description Thermopile Sensors Incidentlaser light For system integrators and for implementations involving customer written software the sensors incorporate a comprehensive command set that 1s easy to access USB driver is a Virtual COM port and supports simple ASCII host commands for remote interfacing Using customer written software the remote interfacing host command set allows sensors to be remotely controlled National Instruments LabVIEW examples for easy LabVIEW integration For many years thermopiles have been the detector of choice for high power lasers These detectors operate on the thermoelectric principle in which thermal energy is converted into electrical energy The typical thermopile consists of a central light absorbing disk a series of thermocouples that surround the disk and an annular heat sink around the ring of thermocouples refer to the f

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