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LED Measurement System

User Manual

2

Ossila Limited © 2022

1.

Overview

The Ossila LED Measurement System is a low-cost solution for reliable current-voltage-luminance
measurements of light emitting diodes. The system is controlled by specially designed software
which can perform multiple IVL measurements and measure the current, luminance, and
efficiency over long periods of time.

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Содержание T2005

Страница 1: ...enabling materials science Ossila com LED MEASUREMENT SYSTEM USER MANUAL Manual version 3 0 A Product code T2005 Product Version 3 0 Software version 3 0 ...

Страница 2: ...Safety Servicing 7 4 Requirements 8 5 Unpacking 8 5 1 Packing List 8 5 2 Damage Inspection 8 6 Specifications 9 7 System Components 10 8 Installation 11 9 Operation 11 9 1 Measurement Types 11 9 2 Quick Start Guide 13 9 3 Software Settings 13 10 Test Device 21 10 1 Taking a Measurement 21 11 Troubleshooting 23 11 1 Installation and Setup 23 11 2 Error Messages and Warnings 24 12 Related Products 2...

Страница 3: ... Measurement System is a low cost solution for reliable current voltage luminance measurements of light emitting diodes The system is controlled by specially designed software which can perform multiple IVL measurements and measure the current luminance and efficiency over long periods of time ...

Страница 4: ...s issued under our sole responsibility and belongs to the following product Product Ossila LED Measurement System T2005A3 T2005B3 T2005C3 T2005E3 Serial number T2005A3 xxxx T2005B3 xxxx T2005C3 xxxx T2005E3 xxxx Object of declaration Ossila LED Measurement System T2005A3 T2005B3 T2005C3 T2003E3 The object of declaration described above is in conformity with the relevant Union harmonisation legisla...

Страница 5: ...αφερόμενος εξοπλισμός συμμορφώνεται με τη σχεnκή νομοθεσία εναρμόνισης της ΕΕ που υπάρχει σnς προηγούμενες σελίδες του παρόντος εγγράφου Español Declaración de conformidad UE Fabricante Ossila BV Biopartner 3 building Galileiweg 8 2333 BD Leiden NL Declaramos bajo nuestra única responsabilidad que el siguiente producto se ajusta a la pertinente legislación de armonización de la UE enumerada en las...

Страница 6: ...to indicado está em conformidade com a legislação de harmonização relevante da UE mencionada na s página s anterior es deste documento Română Declaraţie de conformitate UE Producător Ossila BV Biopartner 3 building Galileiweg 8 2333 BD Leiden NL Declară pe proprie răspundere că echipamentul prezentat este în conformitate cu prevederile legislaţiei UE de armonizare aplicabile prezentate la pagina p...

Страница 7: ...ransformers is not recommended 3 2 Hazard Icons The following symbols can be found at points throughout the rest of the manual Note and read each warning before attempting any associated operations associated with it Table 3 1 Hazard warning labels used in this manual Symbol Associated Hazard Electrical shock 3 3 General Hazards Before installing or operating the Ossila LED Measurement System ther...

Страница 8: ... chemical damage through improper use The Unit has been operated outside the usage parameters stated in the user documentation associated with the Unit The Unit has been rendered inoperable through accident misuse contamination improper maintenance modification or other external causes 3 6 Health and Safety Servicing Servicing should only be performed by an Ossila engineer Any modification or alte...

Страница 9: ...B Monitor Resolution 1440 x 960 Connectivity USB 2 0 Ethernet requires DHCP 5 Unpacking 5 1 Packing List The standard items included with the Ossila LED Measurement System are The Ossila LED Measurement System 24 VDC power adaptor USB B cable USB memory stick pre loaded with the user manual USB drivers QC data and software installer Resistor test device 5 2 Damage Inspection Examine the components...

Страница 10: ...e 10 mV to 10 V Voltage accuracy 10 mV offset Voltage resolution 170 μV Current range 10 nA to 200 mA 5 ranges Current accuracy 10 nA at 20 μA range Current resolution 0 1 nA at 20 μA range Lux range 0 to 100 klx 3 ranges Lux accuracy 10 Lux resolution 0 0144 at 500 lx range Substrate Size 20 mm x 15 mm 25 mm x 25 mm Substrate Compatibility T2005B S211 T2005E S2006 Overall Dimensions Width 151 mm ...

Страница 11: ...ted 2022 7 System Components The Ossila LED Measurement System is comprised of three items the Ossila LED Measurement System Figure 7 1 and the Ossila LED IVL Software Figure 7 2 Figure 7 1 The Ossila LED Measurement System Figure 7 2 The Ossila LED IVL software ...

Страница 12: ...e refer to the SMU USB Driver Installation Guide found on the USB memory stick 9 Operation 9 1 Measurement Types The Ossila LED IVL software can perform 2 different types of measurements Each measurement type can be selected using the tabs at the top of the window The available measurements are 1 Characterisation Section 9 1 1 2 Lifetime Section 9 1 2 Each measurement type requires several setting...

Страница 13: ... 1 Ossila LED IVL software Characterisation tab The Characterisation tab is used to perform I V measurements of LEDs whilst measuring the illuminance luminance white count and current and power efficiencies using the built in light sensors 9 1 2 Lifetime Figure 9 2 Ossila LED IVL software Lifetime tab ...

Страница 14: ...settings II Data is plotted as it is measured using a solid line for primary left y axis and a dashed line for the secondary right y axis III This process is repeated until all pixels have been measured 6 If automatic saving is turned on the measurement data and settings will then be saved 9 3 Software Settings There are several settings in the program which must be filled in before taking a measu...

Страница 15: ... nA 100 pA III Lux Range Select the range of lux values to be used for the measurement I This defines the upper limit and resolution of lux measurements that can be performed by the unit The values for each range are given in Table 9 2 Table 9 2 Lux range specifications for the Ossila LED Measurement System Maximum Lux Accuracy Resolution 100 klx 10 1 8432 lx 5000 lx 10 0 1152 lx 500 lx 10 0 0144 ...

Страница 16: ...Pixel numbers are labelled on the device holder II Selection boxes will be enabled and disabled based upon the device holder being used II Pixel Area Set the area in cm2 of each pixel of the device III Inverted Device Set whether the device to be measured is inverted I This option should be on if the anode of your device connects to the cathode pins in the device holder ...

Страница 17: ... volts at which to end the current voltage measurement I This can be set between 10 V and 10 V IV Voltage Increment Set the step size in volts for changing the voltage during current voltage measurement V Voltage Settle Time Set the time in seconds between applying a voltage and measuring the current I The minimum value is dependant on the selected lux range 0 s for 100 klx 0 05 s for 5000 lx and ...

Страница 18: ...age that all pixels will be held at between measurements I This can be set between 10 V and 10 V IV Primary Axis Units Set which property is plotted on the primary left y axis V Secondary Axis Units Set which property is plotted on the secondary right y axis 9 3 5 Saving and Loading Settings Figure 9 7 Controls for saving and loading settings profiles I Save Settings Saves the current settings as ...

Страница 19: ...ls Figure 9 8 Controls to start and stop the measurement I Measure Clicking this button will start the measurement using the chosen settings This button cannot be clicked if the software has not detected a unit II Abort Stops a measurement that is currently in progress 9 3 7 Plot Controls I Plot Display Controls By default the axes of the plot will automatically scale to display all the data withi...

Страница 20: ... Secondary Axis Controls whether the data plotted on the secondary right y axis is displayed 9 3 8 Saving Data Figure 9 10 Settings and controls for saving data I Save After Measurement The program allows for data to be saved automatically as well as manually once the measurement is complete I For automatic saving the Save Directory and Device Label fields must be filled in before the measurement ...

Страница 21: ...e of the comma separated values csv files in which data will be saved I The name cannot contain the characters IV Save Data Clicking this button will manually save the measurement results of the active curve V Save Data Format Data for each pixel is saved to a separate csv file with the following columns Time s lifetime only Voltage V Current A Illuminance lx Luminance cd m2 White Count Current Ef...

Страница 22: ...minutes for the system to warm up 3 Place the test device in the device holder with the resistors facing upwards 4 Start the LED IVL software and enter the following settings in Figure 10 2 I These settings can be used with any current range except for the 20 μA range For this range the start and end voltages must be lowered to 2 V and 2 V respectively II The Pixels to Measure checkboxes should ma...

Страница 23: ...or the 200 mA current range the calculated resistance should be between 98 and 102 kΩ within 2 of the resistor value III For all other ranges the calculated resistance should be between 99 and 101 kΩ within 1 of the resistor value Figure 10 3 Example measurement of resistor test device using the 200 μA current range ...

Страница 24: ... the computer Install the software on a computer with Windows Vista or newer The software has not installed properly Try reinstalling the software Cannot connect to the system via USB The USB cable may not be connected properly Ensure the USB cable is firmly plugged in at both ends The USB cable may not be connected to a working USB port Try connecting the unit to a different USB port on the compu...

Страница 25: ...y or device label entered The save directory and or the device label fields are empty Settings profile not found The given settings profile does not exist or is open in other software Error loading settings There is a problem with the settings profile preventing it from being loaded Error deleting profile The given settings profile does not exist the software does not have the necessary permission...

Страница 26: ... for a variety of processing techniques Product codes S301 S302 S303 S304 Product code E101 12 2 Related Equipment Spin Coater Syringe Pump Produce high quality coatings without any substrate warping Perfect for busy labs with limited space High precision programmable single and dual syringe pumps for automatic dispensing of solutions Product code L2001A3 Product codes L2003S1 L2003D1 UV Ozone Cle...

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