LISUN LSG-1200A Compact Goniophotometer– After Sales Questions and Answers

The LSG-1200A compact goniophotometer is used to measure the luminous intensity distribution curve, intensity data, beam angle and other photometric parameters for Chip LED, LED Module, LED Spotlight and all other light which spread angle is no more than 180 degree.

Optional function: The LSG-1200A can work with a Digital Power Meter (LS2012 DC & AC Power Meter or LS2010 Harmonic Analyzer) and LSP-500VAR AC Power Source.

Q1: The software cannot communicate
A1: The device is connected to the computer through RS232 communication line or RS232-USB adapter line. If you use an RS232-USB adapter cable, you need to install the driver for the adapter cable.

Q2: When the software runs for the first time, you will be prompted to run configuration first
A2: You can find this option in the start menu below.

Click the button as shown in the figure below after clicking “ON”, and the software interface can be opened after the communication with LSG-1200A host computer is successful.

Q3: About electrical parameters
A3: LSG-1200A itself does not include electrical parameter function. If you need to obtain the electrical parameters of the sample lamp, you need to purchase an additional electrical parameter table. If you purchase our electrical parameter meter, you can also connect the electrical parameter meter to the computer through RS232 or RS232-USB adapter cable, and select the corresponding model at the following location and automatically search its port:

After successful communication, the electrical parameters of the sample can be automatically displayed in the test report.

Q4: About power supply
A4: LSG-1200A does not contain power supply. If the sample needs to be lit, the customer needs to prepare the power supply. If you purchase AC or DC power supply from us, you can also connect the power supply to the computer through RS232 communication line or RS232-USB adapter line, and then control the AC and DC power supply through software from the following locations of the software. After clicking on, you need to manually select the corresponding model and communication port.

If it is a power supply of other brands, it needs to manually control the output.

Q5: The following prompts are encountered when starting the test:

A5: This prompt is because the angle displayed by the C-axis is not at the 0 degree position at the beginning of the test. If it is confirmed that the C-axis of the lamp is indeed at the 0 degree position, click YES, and the software will directly set the current C-axis angle to 0 and start the test directly. If the C-axis of the lamp is not at 0 °, click NO, and the software will turn the C-axis back to 0 ° according to the displayed angle value, and then start the test.

Q6: How to test double-sided luminous lamps
A6: LSG-1200A can only test the light intensity distribution within the range of plus or minus 90 degrees of gamma angle. If the lamp is illuminated on both sides, it can be lit on both sides for two tests. Note: The two tests need to use the same C angle range and interval, and the same G angle range and interval before. Two. igf files were measured. Then download the merge tool MergeReport through the following link:
https://www.dropbox.com/s/38zkmfqfvgm5hlq/MergeReport_EN.zip?dl=0
Merge the two. igf files to generate a new. igf file to display bidirectional light intensity distribution data and total light flux at the same time.

Q7: About calibration and test distance
A7: The position of LSG-1200A probe is fixed, and calibration is not required. As shown in the figure below, there are two positions in the darkroom where the probe can be fixed.

Generally, the probe is fixed at the far end, and the test distance is 1m. If it is necessary to move the probe to the near end to test a single LED or weak light source, manually change the test distance below to 0.317 m.

Q8: No data in UGR table
A8: See the figure below. You need to enter the size of the light-emitting surface in the left column, and then the software can automatically calculate the UGR table according to the light intensity distribution data and the size of the light-emitting surface.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618117273997

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