GL Optic SPECTIS 1.0 touch: Quick Start User Guide
Contents
1. located Press USB Connected and then Turn on USB storage to make the SD card appear as an external drive Data files are located in the measurements folder 10 4 ACCESSING PAST READINGS To access past days readings press the Directories button at the top of the screen above the list of measurement files Each directory folder contains all the measurement files recorded in one day and is labelled with the date in yyyy mm dd format The number in brackets is the number of measurement files in that folder Long pressing on a directory filename opens a pop up menu to rename the directory folder delete the directory folder or create a new directory folder 11 SETTINGS SCREEN The settings screen has options to access internal information and settings for the SPECTIS 1 0 touch When navigating settings sub menus press the measurement button on the side to go back to the main settings screen e Battery shows the remaining battery level and gives the percentage charge left On all screens you can gauge the battery charge level by the thin yellow line near the top of the screen e Wi Fi accesses the Android OS Wi Fi settings for the SPECTIS 1 0 touch Here you can turn the Wi Fi on and off and connect to any local Wi Fi networks you may be prompted for a password Wi Fi connection allows remote data transfer and trigger control when a PC running GL SPECTROSOFT is connected to the same Wi Fi network e Idle time lets y2. E A oe eee 7 10 Manage multiple readings ssisrsrisssissrireisei erarik srsti desonnedeatans tank anwbudonns eaehaveduantwe lavaghauvnedncandavasaacornenteiavenaaees 7 10 1 Record another SPD MEASUle MONE accusnscassavecssvicasasncdasvsradsevensravanavevednceusnaendaynansdonadsitnessnessadvevev nneavannnsba 7 10 2 Viewing SPD measurements s sesssesesseesesessssresesessreresesresresrssossesesessessssrsroseeresroresseseesossereeroressesrereseet 8 10 3 SPD measurement data file format eseessenessenssersseerssersseesssesssersssrossrressrsssreesereseresseesseeeseeesseesseressee 8 10 4 Actessing pact reddes oerein EEE E ENEO EE E 9 e tO E E EE E secede E A 9 12 Appendix 1 How is the SPECTIS 1 0 touch different to a lux meter sssesssessssessserssresssersserssrreerersseresee 10 13 Appendix 2 Technical specifications s iccnnsscininacsasavateasnsnanetauceionsmadanannwenaddwandunenacmaduesanasanaausenaddoptaudesasnaen TESNE 11 Page 1 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide 1 WHY CHOOSE THE SPECTIS 1 0 TOUCH Recent leaps in lighting technology innovation have brought a new generation of LED based luminaire to market for homes offices factories vehicles roadways communications and more LED lighting is now more available and cost effective than ever before with regular technological developments driving innovation in old a
3. Page 3 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide 5 Mini USB port Mini USB connection for data transfer battery charging and direct control of the unit through SPECTROSOFT 5 OUT OF THE BOX The GL Optic SPECTIS 1 0 touch is ready to go out of the box To turn on the unit press and hold the Power Measure Back button The unit will power up and the Android based SPECTROSOFT operating system will boot up and display the home screen Figure 1 GIL SpectroSoft IM Spectrum gt CIE Chart _ Library Settings Figure 1 Home screen Access data results Info Measure Config file library and configuration settings 5 1 BACKGROUND CALIBRATION AND TAKING A READING The SPECTIS 1 0 touch is factory calibrated to a NIST traceable light source ensuring absolute accuracy in every reading The on board temperature noise compensation adds extra accuracy to your readings and requires calibration before use to establish the zero baseline Press the Config button at the bottom right of the home screen Here you also have options to adjust the integration time set multiple repeat readings or input the flicker frequency of your light source Ticking the Auto box lets the SPECTIS 1 0 touch set these levels automatically recommended Take a background calibration reading by pressing the Background calibration button and fol
4. al Ra 96 4 photometric results for you light source Change what values are shown and the font Back Measure Config size by long pressing on any value 8 CIE CHART SCREEN The CIE 1931 xy CIE 1960 uv and CIE 1976 u v colour space charts are viewed by pressing the colour space icon at the top of the screen or the CIE Chart button on the Home screen Figure 1 There is a tab for each separate CIE colour space The chromaticity coordinates of your light source are displayed along with a cross showing where in the colour space those coordinates lie The faint curved line across the middle of the colour charts is the Planckian black body locus of white light at different colour temperatures 7s 13 58 GL CIE Chart m131106 143627 ta alt 1931 xy 0 8 x 0 3354 y 0 3494 0 7 0 6 0 5 0 4 al i s 0 3 i 0 2 0 1 Figure 4 CIE 1931 Colour chart The colour position of the light source is plotted on each Back Measure Config chart 0 0 0 1 02 03 04 05 0 6 0 7 Page 6 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide 9 DATA SCREEN The individual radiometric data points of your spectral power distribution can be viewed by pressing the Data button on the Home screen Figure 1 The wavelength column Waves gives the recorded wavelength of light in nm The data points presented are native not interpolated hence the exact w
5. analytikLtd Leading suppliers of innovative World leading providers of analytical instrumentation to the GI OPTIC innovative and reliable spectral analytical solutions i UK and Ireland light measurement solutions GL OPTIC SPECTIS 1 0 TOUCH QUICK START USER GUIDE Thank you for choosing the GL Optic SPECTIS 1 0 touch The GL SPECTIS 1 0 touch is an easy to use tool for fast and accurate photometric characterisation of next generation and conventional light sources To help you get started we have put together this quick start user guide to present the light measurement functions of the SPECTIS 1 0 touch Contents 1 Why choose the SPECTIS 1 0 touch ooo ecesseecssscecssssecssscecesseecesssecessseeeseeseseesescsuses couse censeecsssaecsssasessasscesssssessseesee 2 2 SPECTIS L0 touch modular Syste sorosirissicrissrrnrric ionini oeiras in ka hinna hnn sani an EEEE KEENE EEE ERES 2 3 Measuring light with the SPECTIS 1 0 touch cirios iiini oniranran r een sud tacevaen noweaenusaeicnasiaets uentinnaavemneeas 2 4 SPECTIS LO touch edu DMENT occse nora E ENN ENN AEE EEN EEA ER i 3 SR e A E A N E EE E E E E E E A 4 5 1 Background Calibration and Taking a REACING cccsscccssscccesscceeeeccesusccseesccseescesaesessuesensuecessueeeseeeesgsens 4 SE ETA E E EE T EA T E A T E E E A E aoa E A sheets dale E T E 5 P a e E e A EE AE A E EEE E EA E A E E vents 5 ASA EE A E a E P E ei ears EE AE N E E E E E E E A bas 6 TE E a A E E E E
6. avelengths measured depends on the physical geometry of the SPECTIS 1 0 touch design and cannot be altered Interpolation to give 1nm 2nm and 5nm data point SPDs is available in GL SPECTROSOFT v3 0 The value column Values gives the radiometric power per unit area mW m at each wavelength the diffusor attachment for lux measurement attached The Sl derived radiometric unit of the value column depends on the type of measurement accessory head attachment e The diffusor attachment for lux measurement illuminance records data in mW m nm Radiometric irradiance e The GL OPTI PROBE attachment for nits measurement luminance records data in cd m nm Radiometric radiance e The GL OPTI SPHERE 48 for single LED lumen output measurement luminous flux records data in mW nm Radiometric radiant flux Integrating sphere based luminaire testing for lumen output records data in mW nm GL OPTI SPHERE 205 GL OPTI SPHERE 500 GL OPTI SPHERE 1100 and GL OPTI SPHERE 2000 GIL Data m131111 142610 Values 0 73 0 88 Figure 5 Data screen view individual Measure Config radiometric data point values 10 MANAGE MULTIPLE READINGS 10 1 RECORD ANOTHER SPD MEASUREMENT To take another reading press the side button or the on screen Measure button Your new SPD measurement will be saved to the memory card Page 7 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 tou
7. ch Quick Start User Guide You can access all readings stored on the memory card by pressing the Library button on the Home screen Figure 1 You will first see a list of all the readings taken on the same day Press the Directories folder at the top of the list to navigate up a level and see all available directory folders on the memory card All readings taken on the same day are grouped together in the same directory folder named with the current date as yyyy mm dd Data files are auto saved with a filename based on the time and date that the reading was taken prefix m for measurement followed by the date and time as yymmdd hhmmss GIL Directories 2013 10 28 Mme cv ioes ies My 2013 09 11 171 My 2013 09 06 6 My 2013 09 04 14 My 2013 08 09 24 My 2013 08 07 1 My 2013 08 06 13 Me wea Figure 6 Library screen Each folder Back Measure contains readings taken on one day 10 2 VIEWING SPD MEASUREMENTS Pressing once on a measurement file opens the Spectrum SPD chart for that reading From the Spectrum screen Figure 2 you can press the Results and CIE Chart icons at the top to see the photometric results Figure 3 and chromaticity charts Figure 4 for that reading Cycle between readings taken on the same day all in the same directory folder by pressing the left and right arrow icons at the top of the screen Pressing the Back button takes you back to the list of that day s measurements Long pressin
8. e design and modern software principles GL Optic made the SPECTIS range of light instrumentation to cater to the large and growing market of lighting professionals The accuracy and reliability of real spectrometers far exceed even the best conventional lux meter and colorimeter instrumentation Until now these capabilities were only available to the largest light testing laboratories lighting manufacturers and optical scientists Now they re available to all lighting professionals at a fraction of the cost at just the right time to take advantage of an explosion in LED uptake and application development 13 APPENDIX 2 TECHNICAL SPECIFICATIONS TT Page 11 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com
9. etamerism indices co ordinates of the light colour peak and more All available photometric parameters can be calculated in GL SPECTROSOFT v3 0 using radiometric data recorded with the SPECTIS 1 0 touch Spectral analysis for binning pass fail testing colour quantification and reporting is fast easy and intuitive 4 SPECTIS 1 0 TOUCH EQUIPMENT The SPECTIS 1 0 touch includes GL Optic SPECTIS 1 0 touch unit Cosine correcting light diffusor measuring head for lux CCT CRI R1 R14 colour coordinates 4Gb SD card for auto saving spectral power distribution SPD readings 1 Diffusor measuring head The SPECTIS 1 0 touch comes with a cosine correcting diffusor measurement head to collect light from a 180 hemisphere in front of the sensor 2 Power Measure Back button This button has three functions e Initiates a measurement reading when pressed once e Functions as the Back button for the Android operating system when navigating menus e Powers on off the unit by holding it for three seconds 3 Display Pressure sensitive 3 2 colour LCD screen for data display and navigation At the top of the screen you can see the time battery power and Wi Fi connection status Dragging down from the top of the screen will reveal the accessory code of the current attachment and the date 4 4GBSD card slot 4Gb micro SD card for data storage Every measurement is auto saved to the SD card for later analysis or export
10. g on a measurement filename opens a pop up menu to access any of the measurement information screens Spectrum Results CIE Chart and Data and also to Rename or Delete the file Tip press the measurement button on the side to exit the menu 10 3 MEASUREMENT DATA FILE FORMAT Files are stored on the SD card in a mmg format designed to be opened in GL SPECTROSOFT PC software for further photometric analysis Each mmg file contains recorded native data points accessible on the Data screen and photometric calculations available on the Results screen along with status information relevant to the measurement for example the time and date background temperature hardware serial numbers and configuration settings Page 8 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide Though mmg files are designed to be opened and interpreted by GL SPECTROSOFT they follow the XML markup language format and can be opened in any XML compatible program for example Microsoft Excel The raw data is there along with meta data on the status on the unit itself You can access the SPECTIS 1 0 touch memory card by connecting the unit to a PC via USB cable You must activate USB storage mode on the SPECTIS touch to make the SD card appear as an external drive on your PC To activate USB storage mode drag down from the top of the screen where the battery icon and time are
11. igure 2 Spectrum screen View the SPD plot for your light source x axis wavelength nm y axis power mW m Lux colour temperature and colour rendering T I T T 400 500 600 700 index are displayed above the graph Filename Back Measure Config is at the top of the screen 7 RESULTS SCREEN Photometric calculations derived from your recorded SPD are shown on the Results screen Figure 3 Access the Results screen by pressing the middle icon at the top of the screen or pressing the Results button on the Home Screen The photometric parameters calculated by the SPECTIS 1 0 touch are e CIE 1931 2 x y chromaticity coordinates e Lux level Y e Correlated colour temperature CCT e Colour peak wavelength e Colour rendering index average Ra e Colour rendering indices R1 R14 You can choose which parameters are displayed and the font size by long pressing on any value to access the configuration menu Page 5 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide Complete photometric parameter calculation requires the GL Optic SPECTROSOFT v3 0 PC software SPECTROSOFT can calculate all relevant photometric parameters compare and explore SPD readings bin LEDs output customisable reports and more aL Results m131106 143627 ta da Parameter 963 45 x 5382 hed Color Peak 349 67 nm Figure 3 Results screen View critic
12. lowing the instructions place the cap on the cosine corrector attachment and press Accept The unit will run through its calibration procedure and ask if you would like to apply the background calibration Once your SPECTIS 1 0 touch is calibrated take a spectral power distribution SPD reading press the button at the side of the unit or press the Measure button at the bottom of the screen Data is saved automatically to the SD card with a filename based on the date and time of the reading prefix m then yymmdd hhmmss Press the button again to take another reading SPD readings taken on the same day are automatically saved in the same directory folder see Manage multiple readings section below Switch between readings in the Page 4 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide same directory folder taken on the same day by pressing the left and right arrow icons at the top of the screen 6 SPECTRUM SCREEN Once you take a reading you see a graph of your recorded spectral power distribution with the wavelength in nm on the x axis and power in mW m2 on the y axis At the top of the chart you can see the calculated values for lux Y correlated colour temperature CCT and colour rendering index average Ra of your light source p ii 13 37 Gi Spectrum m131106 143627 aM be gt Y 968 45lx CCT 5382 Ra 96 4 20 15 F
13. n increasingly more light power as the wavelength increases Conventional lux meters just can t measure these types of light sources accurately as the spectrum of light emitted from an LED looks totally different from an incandescent source even if they appear the same to our eyes Page 10 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide A spectroradiometer is the best equipment to quickly and accurately record and manipulate light power data to derive photometric information for both next generation LED lighting and traditional lighting technologies too Rather than applying a correction factor to one number the signal from a lux meter sensor we can accurately measure the light power at many points through the spectrum from blue to red Using established CIE photometric definitions and algorithms we can use the light power data the spectral power distribution to calculate exact values for any photometric parameter such as lux colour temperature metamerism indices and rendering indices At its heart the SPECTIS 1 0 touch is a calibrated spectroradiometer the sort of equipment that only large light testing laboratories could afford and operate ten years ago with design and calibration standards traceable to Russia s VNOIFFI physical standards institute Taking advantage of innovations in optical component miniaturisation intelligent hardwar
14. nd new markets The SPECTIS 1 0 touch is a result of these market shifts and technological innovations an answer to the need for a new level of sophistication in design and manufacture workflows Getting the best performance from your LED product is the ultimate aim of luminaire design choosing the right office lighting can save energy create a pleasant work environment and help comply with health and safety legislation and quickly mapping designed light environments can speed up project delivery and make choosing the right light source fast and easy All of these tasks and more are covered by the SPECTIS 1 0 touch Lighting professionals need to know that the light output colour quality and lifetime performance of their light sources meet expectations for the intended use Meeting those standards is achieved through simple quality assurance and testing routines GL Optic s SPECTIS 1 0 touch is designed to make light testing fast easy and flexible with laboratory grade standards for accuracy precision and consistency 2 SPECTIS 1 0 TOUCH MODULAR SYSTEM The SPECTIS 1 0 touch aims to combine lab grade photometry with an intuitive user interface design You have a portable light laboratory in the palm of your hand an efficiently packed configuration with miniaturised nano imprint diffraction grating collimating mirrors stray light baffles temperature sensors CMOS detector on board computation 4Gb flash memory wireless communication a
15. nd touch screen display Each unit accessory and sphere receives factory calibration to international laboratory standards for absolute accuracy and the rugged metal casing protects it during everyday use in production environments lighting labs and in the field Regular check up and re calibration services extend the GL Optic warranty up to 5 years after purchase so you can always be sure that your data is accurate and reliable Hot swap attachments GL OPTI PROBE and GL OPTI SPHERES are available to measure luminance cd m or nits and luminous flux lumens for light sources of any size Quickly change measurement heads by un screwing the standard diffusor head from the SPECTIS 1 0 touch and re attaching a new one or combine the SPECTIS 1 0 touch with an integrating sphere of any size The SPECTIS 1 0 touch automatically detects the type of measurement accessory attached and loads the correct calibration file Light source and luminaire testing with the SPECTIS 1 0 touch and GL SPECTROSOFT Pro software can deliver fully comprehensive modular photometric testing capabilities to any company GL Optic have a wide range of probe attachments integrating spheres gonio systems TEC chip temperature controllers and power supply monitoring equipment available 3 MEASURING LIGHT WITH THE SPECTIS 1 0 TOUCH The standard measurement attachment head included with the SPECTIS 1 0 touch is the standard diffusor a class B cosine corrected light c
16. ollector according to German DIN 5032 7 standards Light is collected from a 180 2TT hemisphere above the sensor and delivered through an aperture to the diffraction grating mirrors and sensor The 256 pixel CMOS image sensor records the light power in mW at 1 7nm intervals along the Page 2 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide light spectrum from 340nm to 750nm spanning our whole perceptual range 400 700nm and extending either side into the ultraviolet and infrared portions of the spectrum The known collection area of the measuring head 1cm diameter white disc allows the SPECTIS 1 0 touch to calculate the light power per wavelength per unit area From the human light sensitivity curve photopic V lambda curve we know the exact perceptual sensitivity of the human eye at each point along the recorded spectrum Knowing the light power per area at each wavelength and the human light sensitivity curve gives us the illuminance lux value at the surface of the measuring head We can calculate an exact lux value using established CIE International Commission on Illumination calculation algorithms and the recorded high resolution spectral power distribution SPD sensor data This radiometric data is also used to exactly calculate other photometric the colour correlated colour temperature CCT colour rendering indices CRI R1 R14 m
17. ou set a no activity time limit before the SPECTIS 1 0 touch automatically turns itself off to save power You can set the timer to 5 10 15 or 30 mins e Date Time lets you set the date and time information on the SPECTIS 1 0 touch or allow it to auto set those values using Wi Fi network provided values e Status displays relevant information about the SPD measurement you last viewed for example the time and date background temperature hardware serial numbers and configuration settings Status information is saved in XML format in the SPD data file on the SD card e Power off turns the SPECTIS 1 0 touch off Page 9 of 11 Analytik Ltd GL Optic all rights reserved www analytik co uk www gloptic com GL SPECTIS 1 0 touch Quick Start User Guide 12 APPENDIX 1 HOW IS THE SPECTIS 1 0 TOUCH DIFFERENT TO A LUX METER First we should answer what is a lux meter and what information does it provide Traditionally going back to Edison s light bulb artificial lighting was produced by heating something to very high temperatures Blackbody like radiation such as from the white hot filament of a light bulb has a characteristic emission of light wavelengths that our eye perceives as white light Some blue light is emitted and emission power rises up through yellow green orange red and on to infra red beyond our perception The combination of how much light at each wavelength is emitted is interpreted by our visual system as
18. raw radiometric data to adjust for the correct perceptual brightness or lux level The correction factor converts the light power signal received from the sensor to a close approximation of how our eyes would perceive the same light power spectrum The sophistication in design calibration and data correction factors involved can all vary and impact on the cost accuracy of the lux meter Some models of lux meter have a switch to choose between the type of incandescent light source you re measuring which applies different calibrated correction factors to the sensor data Manufacturers usually give an f1 percentage value in the tech specs of a lux meter to indicate the uncertainty from the true lux value as the correction factor is never perfect LEDs work differently though as LEDs are not incandescent light sources They operate on fundamentally different principles and the equipment needed to accurately measure their photometric properties is fundamentally different too Using conventional lux meters and colorimeters with LED lighting can lead to errors of up to 25 making proper design testing and quality assurance impossible Lux meters assume you are testing an incandescent source of some sort so the correction factors will be inaccurate Even worse LEDs are particularly peaky light sources with strong blue components driving green red emission from phosphors compared to incandescent sources which emit little blue light at all the
19. white The brightness and colour quality of this incandescent light depends on how hot you heat a given material shifting the emission toward blue and changing the emission profile This produces the warm white orange glow of a 100W Edison light bulb 3500K or the cool blue white crispness of a xenon halogen bulb 6000K The xenon bulb emits more blue light than the Edison light bulb and our eyes perceive that difference as a change in light quality Lux meters and colorimeters tell us how bright or what colour we would perceive a light to be Human light perception sensitivity varies across the spectrum from 300nm blue light up to 700nm red light based on the retina s blue green and red sensitive cone cells We are most sensitive to 555nm green light for example Lux meters and colorimeters calculate a perceptual photometric value that reflects this fact rather than simply the physical light energy radiometric value We get a more accurate idea of our actual perception of a light source not just the physical spectral properties They come in various designs and underlying technologies photodiodes bandpass filters and selenium cells for example but generally are designed for and calibrated with hot incandescent blackbody light sources To account for the difference in wavelength sensitivity between the human eye and the lux meter s light sensor components a correction factor or algorithm is often applied to the sensor s
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