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Chapter 10

– Luminous / Radiant Intensity

Chapter - 10 L

UMINOUS

ADIANT

NTENSITY

Luminous Intensity is the luminous flux per unit solid angle in a given direction and is calculated from

Radiant

Intensity (watts/steradian)

. It can be easily thought of as luminous flux (lumens) traveling through a cone (solid

angle) in a given direction (for example the forward 180°). Luminous intensity is given in

candelas (lumens /

steradian)

millicandelas

(1 candela = 1000 millicandelas).

FIGURE 82 - ILLUSTRATION OF LUMINOUS INTENSITY

FIGURE 83 - LR-730 LED RECEPTOR

Typical applications for the measurement of luminous intensity include small lamps (in

candelas) and LED’s

(millicandelas). For the measurement of luminous intensity, the PR-7XX can be equipped with the LR-730 LED
Receptor. During calibration, these accessories are calibrated using sources where the precise area being

sampled is used to calculate candelas as given by

area

candelas

where

area

is the total emitting

area of the source.

Solid Angle

Mounting Thread

LED Adapter
Cap

LED Adapter Screws
(2 each)

LED Mounting Port

Содержание Photo Research SpectraScan PR-7 Series

Страница 1: ...PR 7XX SpectraScan User s Manual PHOTO RESEARCH 7279 William Barry Blvd North Syracuse NY 13212 3349 Phone 315 701 0678 Fax 315 701 0679 Email sales pr photoresearch com URL www photoresearch com...

Страница 2: ......

Страница 3: ...nt contains proprietary information that is protected by copyright All rights are reserved worldwide No part of this document may be reproduced photographically electronically or by any other means wi...

Страница 4: ...Friday except legal holidays to aid in technical support Call 315 701 0678 FAX 315 701 0679 or e mail service pr photoresearch com for instrument repair or calibration support pr photoresearch com fo...

Страница 5: ...19 1 in Figure 10 19 RS 232 Connector optional 21 2 in Figure 10 21 Mini USB 1 1 Connector 22 3 in Figure 10 22 Power Connector 22 4 in Figure 10 22 Connecting the AC Adapter 22 MS 75 Standard Object...

Страница 6: ...ructions 43 How to Select the Bandwidth 43 how to Select an Aperture 44 How to Select A Primary Accessory 44 How to Select an Add on Accessory 44 How to Set the Number of Measurements to Average 44 Ho...

Страница 7: ...surements Parameters 64 Continuous Measurements 65 Advanced Setup 66 Custom Spectral Calibration 66 Accessing the Custom Spectral Calibration Menu 66 Importing Data 67 As a MEA File 67 As a TXT File 6...

Страница 8: ...urement Types 86 Luminance Radiance 86 Chapter 8 How to Make a Luminance Radiance Measurement 89 Using an Objective Lenses 89 Using the FP 730 91 Using the LA 730 Luminance Adaptor 92 Chapter 9 How to...

Страница 9: ...the PR 7XX 111 Appendix 1 Remote Control Mode 115 Installing the USB Driver 115 Using Remote Control Commands 115 Entering Remote Mode 116 Remote Control Command Summary 118 Remote Control Command Det...

Страница 10: ...PR 7XX User s Manual vi...

Страница 11: ...IRCUIT 21 FIGURE 14 PR 7XX RS 232 OPTION 21 FIGURE 15 MINI B USB CONNECTOR 22 FIGURE 16 MS 75 OBJECTIVE LENS 23 FIGURE 17 SPECTRUM MEASURED BY THE AND PR 7XX 29 FIGURE 18 PR 7XX SPECTROMETER 30 FIGURE...

Страница 12: ...ETERMINE AVERAGE CRI 58 FIGURE 53 CRI SETUP SCREEN 59 FIGURE 54 CRI SOURCE SELECT SCREEN 60 FIGURE 55 CRI SETUP SCREEN WITH SELECTED SOURCE DATA 61 FIGURE 56 CCT FOR PLANKIAN OR DAYLIGHT SOURCE ENTRY...

Страница 13: ...82 ILLUSTRATION OF LUMINOUS INTENSITY 99 FIGURE 83 LR 730 LED RECEPTOR 99 FIGURE 85 IS 730 OUTER VIEW 101 FIGURE 86 IS 730 INTERNAL VIEW 102 FIGURE 87 IS 730 HEIGHT ADJUSTMENT 103 FIGURE 88 NEW HARDWA...

Страница 14: ...torage The spectral range of the PR 730 PR 740 and PR 788 is visible 380 nm to 780 nm while the PR 735 and PR 745 extends the spectral range into the near infrared 380 nm to 1080 nm For wireless contr...

Страница 15: ...Chapter 2 System Overview 11 Chapter 2 SYSTEM OVERVIEW FIGURE 1 PR 7XX SPECTRASCAN SIDE VIEW FIGURE 2 I O PANEL ENLARGEMENT 1 2 3 11 10 12 13 14...

Страница 16: ...View Finder View target measuring aperture focus on aperture 10 Bluetooth Antenna Wireless Communication 4 Measure Switch Execute measurement 11 I O Connector Panel Interface Power connection 5 Power...

Страница 17: ...viewed directly on the vivid color display GRAPHICAL USER INTERFACE GUI The Graphical User Interface GUI is what is displayed on the active area of the display The GUI allows the user to navigate thr...

Страница 18: ...om the roots are branches sub menus indicated by the following icon which have more branches or end nodes leafs Traversing back to the root is as simple as touching the back icon located at the bottom...

Страница 19: ...Chapter 2 System Overview 15 To traverse back to the System Menu simply touch the Back button twice...

Страница 20: ...ons and their corresponding indication Battery Charge Optional for PR 7XX ICON DESCRIPTION AC Adaptor Active Green w 2 bars 100 Charge Green w 1 bars 66 Charge Yellow w bar 33 Charge Orange w bar blin...

Страница 21: ...gate Back to the previous menu screen 2 Abort a measurement active if the abort button is RED 3 Save measurements to the SD card if SD card is inserted 4 Scroll through data sets in measurement result...

Страница 22: ...p information and instrument bandwidth This screen can be viewed at any time by navigating to Menu System Information FIGURE 9 PR 7XX STARTUP SYSTEM INFORMATION SCREEN I O PORTS The connector panel is...

Страница 23: ...for externally triggering a measurement and subsequently sending a signal simple DC signal or pulse to a source capable of being externally triggered such as a xenon strobe lamp FIGURE 11 EXTERNAL TR...

Страница 24: ...2 System Overview 20 The following are sample driving circuits for the external trigger input and output FIGURE 12 SAMPLE EXTERNAL TRIGGER INPUT CIRCUIT DRIVERS TRIGGER INPUT OPTIONS INPUT EQUIVALENT...

Страница 25: ...iring traditional RS 232 communications an optional RS 232 interface can be installed This option adds an RJ 12 jack to the PR 7XX system allowing the user to connect the PR 7XX to a PC s RS 232 port...

Страница 26: ...he AC Adapter receptacle 4 The P Power status indicator on the rear control panel is illuminated MS 75 STANDARD OBJECTIVE LENS The standard objective lens for the PR 7XX is the MS 75 a 75mm f 2 8 Macr...

Страница 27: ...thread and rotating clockwise while grasping the rubber ring toward the rear of the lens see Figure 16 The thread should offer minimum resistance during installation Full details including spot size...

Страница 28: ...r ASCII files print graphics screens or tabular data reflectance transmittance L a b u v measurements E Color Difference and Color Rendering Indices CRI of lamp sources SPECTRAWIN 2 PRO Includes all o...

Страница 29: ...5 Unit License Same capabilities as single unit license but for 5 PR 7XX instruments The instrument s serial numbers must be specified at time of purchase 10 Unit License Same capabilities as single...

Страница 30: ...he total luminous and radiant power of small point sources such as miniature lamps light emitting diodes LED s etc over 4 steradians Using this accessory Radiant and Luminous Flux watts and lumens cor...

Страница 31: ...VARIABLE FOCUS LENSES MS 7 5 mm MacroSpectar Wide Field Lens MacroSpectar Wide Field lens with a 3 94 10 cm to infinity working distance Suitable for large area coverage at short distances for non co...

Страница 32: ......

Страница 33: ...D PR 7XX For the PR 730 PR 740 and PR 788 the measurement wavelength range is 380 nanometers nm violet to 780 nm deep red the visible band of the electromagnetic spectrum see Figure 17 For the PR 735...

Страница 34: ...The wavelength calibration is performed using a helium spectral line source The line source provides known spectral emission lines that the software uses to map the dispersion of the grating to the mu...

Страница 35: ...nt and that calculated values such as CIE Chromaticity based on the measured spectral quantities are accurately reported Lastly a scaling factor photometric factor is applied ensuring the proper photo...

Страница 36: ...he green component and Z is the blue component Y also serves as the photometric value when using the standard MS 75 lens Y gives candelas meter the SI unit for luminance To find footlamberts English u...

Страница 37: ...oduction section of this manual BEFORE YOU BEGIN USING THE INSTRUMENT Prior to beginning operations we suggest a couple of steps to help maximize the functionality and longevity of your new instrument...

Страница 38: ...r left hand corner of the screen 5 You will be prompted to touch 8 additional areas of the screen during the process 6 Touch when finished SETTING INSTRUMENT PREFERENCES Several hardware parameters of...

Страница 39: ...e preceding example Power Saving is Enabled Touch this field to Disable Power Saving It will then read Disabled If enabled the count down time starts after the last command screen touch issued to the...

Страница 40: ...m 0 off to 100 Note When measuring low light levels set the Brightness during measure level to 0 so that the display light level does not contribute to the outcome of the measurement 5 Touch Back when...

Страница 41: ...touch any field next to its descriptor to toggle between Enabled and Disabled 4 Touch Back when finished USB HUB TYPE CONNECTIVITY OPTIONS If you purchased the optional battery for the PR 7XX it can...

Страница 42: ...E 29 CONNECTIVITY MENU TO CHANGE THE USB HUB TYPE 1 From the Preferences menu touch Connectivity 2 To scroll through choices touch the or arrows adjacent to the USB Hub Type field until the preferred...

Страница 43: ...or below the field of interest e g Dec in Figure 30 to scroll to the desired value The range for the Year field is 2005 to 2025 3 Touch Back when finished changing all fields CHANGING UNITS English f...

Страница 44: ...TS MENU To change measurement units 1 Touch Units from the Preferences menu 2 To scroll through choices touch the or arrows adjacent to the Measurement Units or Lum Intensity Units fields until the pr...

Страница 45: ...eter Setting Parity None Data Bits 8 Stop Bits 1 Handshake None To set the RS 232 Baud rate 1 Touch RS 232 Connectivity from the Preferences menu 2 To scroll through choices touch the or arrows adjace...

Страница 46: ...asurement Units Metric Lum Intensity Candelas RS 232 Connectivity Baud Rate 115200 Setting the Default Parameters 1 Touch Reset to Default from the Preferences menu The following screen appears 2 Touc...

Страница 47: ...ement FIGURE 33 MAIN SCREEN FIGURE 34 SYSTEM MENU FIGURE 35 SETUP MENU FIGURE 36 PR 7XX INSTRUMENT SETUP 1 From the main screen touch Menu or use the navigation keys The System Menu appears 2 Touch Se...

Страница 48: ...Primary Accessory Up to 3 Add on Accessories may be used during a measurement Examples of Add on Accessories include all ND filters the RS 3 SRS 3 SL 0 5X and SL 1X lenses 1 To select an Add on Access...

Страница 49: ...iformity the exposure time will be the virtually identical for each measurement since the luminance levels are very similar for every part of the display In this example using Adaptive Sensitivity may...

Страница 50: ...lect a Speed mode 1 Make sure Adaptive is set to Enabled 2 Touch the or icon in the Speed field to toggle between Normal Fast 2X Fast 4X Fast 8X Fast or 16X Fast HOW TO SET THE SYNC MODE The PR 7XX ca...

Страница 51: ...ent values for more than one measurement thus reducing total measurement time by approximately half The Smart Dark feature is used when the instrument determines that the second or successive measurem...

Страница 52: ...ters where it is necessary to provide an external light in order to measure the object Therefore Illuminated samples must be selected in the L u v or L a b mode Following the measurement the light use...

Страница 53: ...field until Standard Illuminants appears An Illuminant may also be a previously measured AND STORED file for example a florescent lamp If it is desirable to use a previous measurement then select Inte...

Страница 54: ...measurement If measuring an illuminated sample the user will need to have a Reference and Source measurement selected The Source measurement will need to be supplied first If measuring a self luminous...

Страница 55: ...rs and then touch Recall 8 Once the Illuminant and Reference and optional Source have been selected and or measured the PR 7XX is ready to perform L u v L a b and optional Delta E measurements To perf...

Страница 56: ...adjusted to the target values set by the RGB algorithm the white point is properly adjusted Since the PR 7XX are spectrally based systems color matching can be achieved without having a golden sample...

Страница 57: ...d or custom be selected and that a reference white point is set SELECTING A PHOSPHOR Proper white point calibration is dependent on the color characteristics of the display primaries Phosphor is used...

Страница 58: ...he display is viewed and has an effect on the perceived color of the display Several pre stored CIE recommended illuminants and daylight simulators can be selected They include CIE Illuminants A B C D...

Страница 59: ...mple mode target values for the Reference display are entered by the user FIGURE 48 RGB DISPLAY CAL SETUP SCREEN 1 Touch the icons adjacent to the Mode field to select Match Sample 2 Touch the icons a...

Страница 60: ...rate the display white point based on user entered values for luminance and CIE chromaticity The user can select to enter Y x y luminance and CIE 1931 x y values or x y If Y x y is selected after cali...

Страница 61: ...gs up a data entry screen like the following example for Y FIGURE 50 RGB DATA ENTRY Note If xy is selected data entry for Y is unavailable 4 Enter the value for Y and then touch Back 5 Repeat for x an...

Страница 62: ...Abort to stop the measurement 4 Touch Back to exit this screen and return to the Measurement Setup Screen at the completion of the calibration COLOR RENDERING INDEX CRI OPTIONAL FOR PR 7XX Color Rende...

Страница 63: ...ions explained below have been made touch Back REFERENCE SOURCE The Reference Source is the standard source that CRI calculations use to compare against the measured sample The source can be one selec...

Страница 64: ...ot the desired path touch the icons in that field to toggle between Internal RAM and the location of your choice Other choices are a file s on the SD card or internally stored Standard Illuminants 3 T...

Страница 65: ...sample If the measured sample s CCT is greater than the entered CCT the auto created reference is based on a daylight type spectrum at or near the CCT of the measure sample To enter the CCT for Planki...

Страница 66: ...erance 1 Touch the gray field adjacent to Chromaticity Tolerance 2 In the screen that appears touch the numbers to enter the desired deviation in CIE 1960 uv units and then touch Back CRI MEASUREMENT...

Страница 67: ...nt D50 Daylight Simulator at 5 000 Kelvins Illuminant D55 Daylight Simulator at 5 500 Kelvins Illuminant D65 Daylight Simulator at 6 500 Kelvins Illuminant D75 Daylight Simulator at 7 500 Kelvins Illu...

Страница 68: ...imed Measurements feature Note The Continuous Measurements feature should not be confused with the Measurements to Average function FIGURE 60 TIMED MEASUREMENTS SCREEN HOW TO SET TIMED MEASUREMENTS PA...

Страница 69: ...rement Button to initiate the Timed Measurement Sequence CONTINUOUS MEASUREMENTS 1 Navigate to the Timed Measurements screen by touching Menu then Setup then Timed Measurements 2 Touch the Timed Measu...

Страница 70: ...ish a set of unique spectral calibration factors for one instrument based on the measurement of a sample from a second instrument Then when both instruments analyze the sample in question they will co...

Страница 71: ...h a txt extension first during the spectral calibration sequence 2 Measure the sample with the Source instrument 3 Save the measurement to the file from Step 1 Make sure that this measurement is the o...

Страница 72: ...The file must have the following file format Line 1 Title Alpha Numeric characters only no spaces Line 2 380 Starting Wavelength Line 3 780 for PR 730 740 788 or 1080 for PR 735 745 Ending Wavelength...

Страница 73: ...of using the PR 7XX as a GO NO GO CIE colorimeter Using CIE Pass Fail you can create an acceptance region of various shapes and sizes After a measurement chromaticity points that fall with the defined...

Страница 74: ...inate e Enter the value including the decimal point then touch Back This value is the absolute position of the y coordinate in the CIE 1931 diagram 4 Define the Size by a Touching the icons in the Edi...

Страница 75: ...To define a circle the Width and Height values must be identical For a horizontal ellipse the Width value must be larger than the Height value and for a Vertical ellipse the Height value must be larg...

Страница 76: ...k This value is the absolute position of the y coordinate in the CIE 1931 diagram 4 Define the Size by a Touching the icons in the Edit field until Size appears b Touch the gray field next to Width to...

Страница 77: ...CIE Pass Fail so that it reads Enabled 2 Touch the icons in the Shape field until Polygon appears 3 Select the number of points to define by touching the icons adjacent to the No of Points field The R...

Страница 78: ...apter 5 Setup Menu 74 8 Following the measurement touch the icons at the bottom of the result screen to scroll to the CIE diagram screen Pass or Fail appears in the lower right hand corner of the scre...

Страница 79: ...cent to the Profile Name filed to scroll through User Profile data sets 5 Touch Save to save the setting to the selected profile Warning Saving a profile will overwrite any information currently store...

Страница 80: ...when you wish to clear all current user set instrument setup and preference This does not affect any user profiles HOW TO RESET TO DEFAULT 1 From the Setup Menu touch Reset to Default Warning This wil...

Страница 81: ...OW TO RESTORE CALIBRATION ILLUMINANT FILES Warning This procedure will delete all files and standard illuminants REQUIREMENTS 1 Secure Digital SD card 2 SD card reader 3 ZIP file with calibration stan...

Страница 82: ...with the latest firmware revision and instruct the instrument to update Warning This procedure will delete all current configuration settings Note Calibration and Illuminant factors DO NOT have to be...

Страница 83: ...RE 64 PR 7XX FIRMWARE UPDATE PROMPT 9 Select Yes to update the firmware No to escape without updating 10 At the screen that appears following the completion of the update touch OK to restart the instr...

Страница 84: ......

Страница 85: ...ESS THE FILE SETTING SCREEN 1 Touch Menu 2 Touch File Settings 3 Touch Back to exit to the Main Manu after all options have been selected FIGURE 65 SECURE DIGITAL CARD FILE SETTINGS AUTO SAVE With Aut...

Страница 86: ...ntil a valid filename appears in the SD File field HOW TO CREATE A NEW MEASUREMENT FILE Multiple measurements files with up to 1000 measurements per file can be saved on the SD card The file name can...

Страница 87: ...nt file 1 Insert the SD card with the measurement file to be deleted 2 Select the desired file to be deleted in the SD File field using the or icons 3 Touch Warning All measurements in the file will b...

Страница 88: ...5 minutes 300 sec to select one of the following options 1 To save measurements on SD card touch Yes 2 To shut down without saving touch No 3 To go back to the previous menu and not shut down touch Ca...

Страница 89: ...RAM or External SD Touch the or icons to toggle between Internal RAM and External SD Card SD FILE If External SD Card has been selected as the Current View the user can select a measurement file to vi...

Страница 90: ...per unit area being emitted in a given direction and is calculated from Radiance watts steradian meter The SI equation for luminance is cd m lumens steradian meter The English equivalent is footlamber...

Страница 91: ...Chapter 7 File Settings 87 FIGURE 73 ILLUMINANCE LUMINANCE CONCEPT...

Страница 92: ......

Страница 93: ...er of the field of view is in sharp focus If the entire aperture does not focus simultaneously make sure the top and bottom of the aperture are in focus 3 Focus on the target If using the MS 75 lens r...

Страница 94: ...Instrument Setup menu touch the icons adjacent to Primary Accessory until the lens currently installed appears 6 Make any other changes in the Setup menu such as Sensitivity Speed Average etc See Chap...

Страница 95: ...ints The measuring area is 0 125 inch 3 mm in diameter when the tip of the probe is placed in contact with a Lambertian source Warning The FP 730 is not recommended for use when measuring LCDs as the...

Страница 96: ...ced in contact with a Lambertian source It features an ambient light shield which eliminates room lighting from affecting the measurement Warning The LA 730 is not recommended for use when measuring L...

Страница 97: ...es and lux is 1 footcandle 10 76 lux In the following example the light falling on the measured plane is the illuminance FIGURE 79 ILLUSTRATION OF ILLUMINANCE Illuminance measurements are made one of...

Страница 98: ...etc at this time The instrument will automatically set the Aperture selection to the largest system configured aperture 2 Remove the current Primary Accessory from the instrument turning the accessory...

Страница 99: ...instrument does not need to measure the source directly Never touch the surface of the plaque Any surface damage or discoloration will result in erroneous readings Always keep the plaque cover closed...

Страница 100: ...ir to blow the soil off or rinse with distilled water A soft bristle brush may be used OR If the material becomes grossly contaminated or scratched restore its original optical condition by sanding th...

Страница 101: ...s beneath Primary Accessory to scroll to ICC 730 Make any other setup changes exposure sensitivity etc at this time see Chapter 5 Setup Menu for more details 2 Remove the current Primary Accessory fro...

Страница 102: ......

Страница 103: ...s 1 candela 1000 millicandelas FIGURE 82 ILLUSTRATION OF LUMINOUS INTENSITY FIGURE 83 LR 730 LED RECEPTOR Typical applications for the measurement of luminous intensity include small lamps in candelas...

Страница 104: ...ones other than 8 3 will produce different results Generally measurements through smaller cones will yield higher values while LED s sampled over larger cones will produce measurements with lower radi...

Страница 105: ...ntire 360 emittance pattern of the device under test For the PR 7XX the IS 730 integrating sphere is available for measuring the luminous and radiant flux of dual lead LEDs OVERVIEW FIGURE 84 IS 730 O...

Страница 106: ...f the leads For simplicity the POSITIVE LEAD should be inserted into the socket corresponding to the RED Banana Jack located on the opposite end of the Mounting Tube ADJUSTING THE MOUNTING TUBE HEIGHT...

Страница 107: ...Flux 103 FIGURE 86 IS 730 HEIGHT ADJUSTMENT MAKING A MEASUREMENT 1 Touch MENU then Setup then Instrument Setup 2 Touch the icons in the Primary Accessory field to select IS 730 3 Press the MEASURE bu...

Страница 108: ......

Страница 109: ...commands INSTALLING THE USB DRIVER Prior to using Remote Control commands or SpectraWin 2 software the USB driver must be installed on your personal computer 1 Turn on the PR 7XX 2 Connect the PR 7XX...

Страница 110: ...7XX into an appropriate CD drive 7 Click Next 8 Click on Continue Anyway FIGURE 89 WINDOWS COMPATIBILITY WARNING FOR PR 7XX USB DRIVER 9 Open the Device Manager 10 Click on Ports COM LPT 11 Use the C...

Страница 111: ...available to the instrument via the PC for charging the battery If there is insufficient current available for the USB device PR 7XX Windows will issue a warning and the battery will not charge using...

Страница 112: ...nectivity FIGURE 92 USB CONNECTIVITY MENU No Power Touch the or icons adjacent to USB Hub Type until No Power appears With No Power selected the instrument runs entirely on the battery and draws no po...

Страница 113: ...Chapter 12 Connectivity 109 High Power 500mA Touch the or icons adjacent to USB Hub Type until High Power appears The battery is charged at the fastest rate...

Страница 114: ...propriate port using the specified protocol settings and enter PHOTO no other hardware handshakes are necessary FIGURE 93 PR 7XX RS 232 OPTION HARDWARE PROTOCOL The RS 232 hardware protocol settings a...

Страница 115: ...ility is also required on the PC PAIRING THE PR 7XX 1 Insert the Bluetooth dongle in the PC 2 Wait until Windows loads drivers for the device The icon appears in the taskbar 3 From the main menu of th...

Страница 116: ...dows version in use and then click Next 13 Highlight the icon with the serial number of the instrument and then click on Next 14 A dialog appears requesting pairing information Click Use the passkey f...

Страница 117: ...Chapter 12 Connectivity 113...

Страница 118: ......

Страница 119: ...s an RS 232 interface including opening a COM port setting a baud rate parity stop bits and flow control This makes Remote Control operations available for application software written in Microsoft Vi...

Страница 120: ...PC via the USB interface cable or optionally using the RS232 or Bluetooth interface 4 Open PuTTY 5 In the Configuration window set the Connection type to Serial Make sure that the Serial line lists t...

Страница 121: ...TER TYPING PHOTO 2 Type E then press Enter This enables full echo mode so that the instrument will return characters sent to it FIGURE 101 ECHO MODE ENABLED 3 Now you are ready to use remote commands...

Страница 122: ...acters M Measure command for the PR 7XX Returned data depends on the accompanying switches O Data logger commands P Monitor the progress of a measurement Must be used with the T command T Trigger Init...

Страница 123: ...ode I Purpose Return instrument status error report Syntax I CR Response 0000 CR LF If all OK else NNNN CR LF NNNN Error code L Purpose Assign measurement description Syntax L Character String with ma...

Страница 124: ...the internal memory RAM of the instrument instead of the SD card data in response code refers to the specific measurement data set returned based on the data code sent to the instrument Refer to the...

Страница 125: ...be specified for a measurement Syntax SAn CR Where n Accessory code Response 0000 CR LF If all OK else NNNN CR LF NNNN Error code Note Accessory Codes can be found by running report 116 command D116 S...

Страница 126: ...are available Standard and Smart Dark In Standard Mode the instrument measures the detector dark current after each light measurement If Smart Dark is enabled and two successive measurements yield the...

Страница 127: ...ivity Mode Select the Sensitivity Mode for the next measurement The two available modes are Standard and Extended In Standard Mode the exposure time range is 12 ms to 120 000 ms 6 sec In Extended Mode...

Страница 128: ...can be calculated using either CIE 2 or 10 Standard Observer data sets Use this specifier to choose the CIE data set for calculations for the next measurement The default is 2 Syntax SOn CR Where n C...

Страница 129: ...e No Sync Auto Sync and User Frequency In Auto Sync mode the instrument measures the frequency of the source to determine its period The exposure time is then automatically altered so that it is an ev...

Страница 130: ...example M1 or D1 M602 or D602 If an M command is sent a measurement will always be made even if the Data Code does not request measured values For example if M116 is sent to the instrument a measurem...

Страница 131: ...ss CIE 1931 x y CIE 1960 u v 13 status Gain description exposure time in milliseconds 14 status Sync mode description sync period in milliseconds 15 Status bandwidth used for last measurement 110 stat...

Страница 132: ...931 y Output Example 00000 0 1 865e 01 0 4035 0 4202 2 Output Format qqqqq U X XXXe ee Y YYYe ee Z ZZZe ee CRLF where X CIE 1931 Tristimulus X Red Y CIE 1931 Tristimulus Y Green Z CIE 1931 Z Blue Outp...

Страница 133: ...mple 00000 0 2 041e 01 0 4089 0 4151 0 2283 0 5215 7 Output Format qqqqq U Y YYYe ee u uuuu v vvvv CRLF where Y YYY Photometric brightness e g Luminance or Illuminance etc e ee exponent u uuuu CIE 197...

Страница 134: ...u u u v v v v v CRLF where Y YYY Photometric brightness e g Luminance or Illuminance etc e ee exponent x xxxx CIE 1931 x y yyyy CIE 1931 y u uuuu CIE 1960 u v vvvv CIE 1960 v Output Example 00000 0 2...

Страница 135: ...ibrated apertures Output Example 00000 1 4 114 Output Format qqqqq vvvvv CRLF where vvvvv Software version Output Example 00000 2 79D 115 Purpose Battery Status optional Output Format qqqqq v CRLF whe...

Страница 136: ...of instrument bb Starting WL ee Ending WL ii WL Increment nrp Number of detector elements pixels frp First useable raw pixel number lrp Last useable raw pixel number Output Example 00000 201 0 00 380...

Страница 137: ...Output Format qqqqq Primary Lens Addon1 Addon2 Addon3 Aperture Units Exposure Mode Exposure Time see note Gain Cycles CIE Observer DarkMode SyncMode CaptureMode SyncPeriod bandwidth CRLF Note The exp...

Страница 138: ...ONTROL PARSING ERRORS Error Meaning Valid Values 1000 Illegal command 1001 Too many fields in setup command 1002 Invalid primary accessory code 1003 Invalid Addon 1 accessory code 1004 Invalid Addon 2...

Страница 139: ...g 20 characters 1022 Measurement title field empty after sending L command 1023 Invalid user Sync period 20 to 400 Hz 1024 Invalid R command 1025 Invalid Addon 3 accessory code 1026 Invalid sensitivit...

Страница 140: ...CALIBRATION The PR 7XX is designed to maintain stable calibration for long periods of time and is certified for one year from the factory However changes in calibration are inevitable due to the effec...

Страница 141: ...etc to expedite collect delivery OUT OF WARRANTY REPAIR If the instrument is out of warranty Visit our web site www photoresearch com to assign a Returned Material Authorization RMA number to your ins...

Страница 142: ...4 x 5 08 mm SL 1X 46 mm to 66 mm 1 78 mm to 2 64 mm 0 89 mm to 1 32 mm 0 445 mm to 0 660 mm 0 226 mm to 0 330 mm 0 178 mm to 0 264 mm 0 111 mm to 0 165 mm 0 089 mm to 0 132 mm 0 089 x 0 89 to 0 132 x...

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