Everfine LT- 101A User Manual

Led driver tester

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LT- 101A

LED DRIVER TESTER

USER'S MANUAL

V 1.05

EVERFINE Corporation (Stock Code: 300306)

ADD ： Bldg.1 #669 Binkang Rd., Binjiang Hi-Tech

Zone, Hangzhou（310053）, China

Tel ：86-571-86698333

Fax ：86-571-86696433

E-mail：Global@everfine.net

Globalservice@everfine.net

http：//www.everfine.net

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Page 1 LED DRIVER TESTER USER’S MANUAL V 1.05 EVERFINE Corporation (Stock Code: 300306) ADD ： Bldg.1 #669 Binkang Rd., Binjiang Hi-Tech Zone, Hangzhou（310053）, China Tel ：86-571-86698333 Fax ：86-571-86696433 E-mail：Global@everfine.net Globalservice@everfine.net http：//www.everfine.net Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 3: Foreword
LT-101A User’s Manual Foreword Thank you for purchasing the EVERFINE LT-101A LED Driver Tester. This user’s manual contains useful information involving the instrument’s functions and operating procedures as well as precautions that should be noticed during operation. In order to use the instrument correctly, please read the manual carefully first, then put it in a right place for quick references.
Page 4: Copyright Statement
If EVERFINE has signed a written agreement with user and the contents in the agreement are in conflict with above terms, the contents in the written agreement have preferential force effect.
Page 5: Safety Precautions
3. Please do not dismantle or remove the cover as the internal precise devices may be damaged. 4. During the test, do not touch the connection terminals to avoid electric shock. 5. Check the connections carefully before measurement. 6. Grounded well. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 6: Table Of Contents
5.4 Other operations....................19 Chapter 6 Software Instructions................... 21 6.1 System requirement..................21 6.2 Installation....................... 21 6.3 Operation......................21 6.4 Test reports (shown in the attached pages)............29 Chapter 7 Verification....................30 7.1 Verification conditions..................30 Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 7 LT-101A User’s Manual 7.2 Verification equipments...................30 7.3 Items and methods...................30 Appendix........................33 Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 8: Chapter 1 Overview
It can work independently, and can also communicate with a computer. LT-101A is very suitable for site-test like production lines, quality inspections and R&D of LED drivers, etc. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 9: Chapter 2 Fundermentals
INTERFACE INPUT ISO. KEY&LED ZERO KEY&LED CONTROLLER FPGA RS-232-C /RS-485 ISO. ZERO Fig.2.2 Schematic diagram of LT-101A Schematic diagram of LT-101A is shown in figure 2.2, The LT-101A device can Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 10: Main Functions
Under conventional start-up mode, it can draw the 0~3s start-up curves of voltage and current; while under transient start-up mode, it can draw the 0~40ms start-up curves of voltage and current. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 11: Digital Display
1. Light all the numeral LED tubes; 2. Extinguish all the numeral LED tubes; 3. Display "EVERFINE LT-101A, FPGA VX.XX CPU VX.XX", "CALC XXXX", "MODE XXX", where "VX.XX" is the version number, "CALC" means calibrated by the manufacturer. If "XXXX" is "PASS", it means the instrument is eligible, while "ERR"...
Page 12: Chapter 3 Specifications
Withstanding voltage: DC2200V for 1 min between the power supply input terminal and the shell of the instrument. AC2000V for 1 min among the signal input terminal, the shell and the power supply input terminal. Power supply: AC220V±22V,50Hz/60Hz. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 13 LT-101A User’s Manual Power consumption: About 15W. Dimension(W×H×D): 426mm×132mm×400mm Weight: 8kg Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 14: Chapter 4 Preparations
"HOLD" state, press "HOLD" again to release the state, and the indictor will be off. "FILTER": The indictor lights means that the instrument is under a narrowband characteristic test, and the frequency bandwidth of the input/output current is 5kHz. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 15 "" and "": They are used to change the orders of the harmonic on window C, and the harmonic will be displayed in window A and B. ○ 8 Display window for input characteristics: Display the measuring values of input characteristics. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 16 6 Fuse holder: There is a fuse for the instrument inside it, with the specification 250V1A and dimensionφ5×20mm. ○ Power: Socket for the instrument, the rated voltage is AC 220V/50Hz or 220V/60Hz. ○ 8 RS-232-C interface: To communicate with computer via this interface. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 17: Measurement Connections
When finishing the test, turn off the power supply for LED driver before turning off the power switch on front panel, the instrument will stop working. Note: The power supply for LED driver should be turned off before starting the instrument. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 18: Chapter 5 Operations
Note: There are two formulas for the calculation of THD, which are IEC and CSA.    IEC method: THD=    CSA method: THD=   where THD is the relative value of total harmonic distortion of voltage or current; Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 19: Output Characteristic Test At Steady State
G according to different selection and the efficiency of power supply can be displayed in window H. 5.2.3 Steady-state testing Press "RUNNING" to switch into the steady state from output start-up testing state. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 20: Start-Up Characteristic Test
6.It will sample for 3s when the output display window shows "PLEASE WAIT" meanwhile the keys are invalid; 7. When " ---- ---- ---- ----" is displayed in output display window , it means there is Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 21: Other Operations
3. Press "FILTER" once more, the indicator flickers, and it's under the ripple test, the ripple frequency width is 5kHZ~1MHz. 4. Press the "FILTER" one more time, the instrument will be switched to the narrow band mode. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 22 "HOLD" to confirm and exit. NOTES: This setting is specially for state characteristic test, it has power-down protection function, and will pop up the current input&output testing mode automatically after restarting the instrument. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 23: Chapter 6 Software Instructions
LT-101A_X.XX. The larger the number, the newer the version, normally please use the latest version). Run the SETUP.EXE to finish the installation. There should be files as following (the default path is C:\EVERFINE\LT-101A_X.XX) when installation is finished: Controls DPS_Power DPSPowerDLL.dll...
Page 24 3. Select serial communication interface: Click "Setup", point to the submenu "System Setup", and select the correct communication interface among COM1, COM2, COM3, COM4, COM5, COM6, COM7 or COM8. Fig.6.2 Communication setting Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 25 In test menu, users can choose the input test frequency(narrow/broad band), input test Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 26 Under the state of harmonic analysis, there are waveform data for stable input characteristics. The printed report will display total harmonic data when doing adjustment rate test with rated input and max load. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 27 To distinguish different testing products, users should record the characteristics of the products: select "setup" menu, click "test characteristic setup", then input information including product type, serial number of product, manufacturer, tester, test date, temperature, humidity, remarks, etc. 2. Print Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 28 Fig.6.5. Fig.6.5 Set limit value 6.3.4 Control software Click "menu" in tool menu or click button in toolbar, users can open the control Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 29 Comprehensive test results: select "test result" at the middle of the interface to view all the test data. Fig.6.6 Comprehensive test results Wave form data: Click the radio button in combo box of steady state test and start-up Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 30 Fig.6.7, and it will display the wave form of input/output voltage and current in start-up test on the right, shown as Fig.6.8. Fig.6.7-1 Input wave form in stability test Fig.6.7-2 Output wave form in steady state test Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 31: Test Reports (Shown In The Attached
Fig.6.8-2 Output wave form in start-up test 6.3.6 Help Select "Help" menu, click "About LT-101A" to check the version number and other information about the software. 6.4 Test reports (shown in the attached pages) Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 32: Chapter 7 Verification
(1) Connection The connection for the verification of the input test channel of the instrument is shown as Fig.7.1, thick line shows current connection of the test channel while the Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 33 Is is the RMS value of current measured by the standard power meter; ΔP is the measurement error of RMS value of active power measured by LT-101A; Px is the RMS value of active power measured by LT-101A; Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 34 Ps is the RMS value of active power measured by the standard power meter; Record the measurement data of LT-101A input/output channel, calculate the error according to the standard power meter. The accuracy of the instrument should meet the specifications in Chapter 3. Copyright © EVERFINE, Copy or spread without authorization is prohibited.
Page 35 LT-101A User’s Manual Appendix Typical test reports of LT-101A. Copyright © EVERFINE, Copy or spread without authorization is prohibited.

Everfine LT- 101A User Manual

Chapter 1 Overview

Chapter 2 Fundermentals

Chapter 3 Specifications

Chapter 4 Preparations

Chapter 5 Operations

Chapter 6 Software Instructions

Chapter 7 Verification

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Summary of Contents for Everfine LT- 101A

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