MANUFACTURER
The Feasa LED analyzer is an innovative solution for testing multiple LEDs simultaneously for color and brightness. There are two models, Feasa-I (ICT) and Feasa-F (Functional). These models can be ordered in 3, 5, 10 and 20 channel configurations.
When choosing which Model is most suitable for your application there are a number of issues to consider. In this regard the choice of Interface is very important.
| Feasa I | Feasa F | |
|---|---|---|
| USB | No | Yes |
| RS232 | Yes | Yes |
| 20 Pin Port – Frequency Out | Yes | No |
| 20 Pin Port – Synchronous Out | Yes | No |
| Daisy Chain | No | Yes |
| External Trigger | Yes | Yes |
USB offers a very simple interface to the LED Analyzer with no requirement for an additional power supply. Very high baud rates, up to 460800 baud, are available. The RS232 Serial Port is easy to use with a max baud rate of 115200. It requires the use of an external power supply. The 20pin ICT Port can be used in either Frequency Out or Synchronous Serial Mode.
The Frequency Out protocol can be used where access to an RS232 Serial Port is not available. Three frequencies are used to represent the Color and Intensity of the LEDs.
The Synchronous Serial protocol is suitable when tester resources are limited or no other options are available.
Multiple LED Analyzers can be connected together using the Daisy Chain Connectors. Only one RS232 Serial Port or USB Port is required to connect up to 30 LED Analyzers.
The Feasa I provides an External Trigger Input which can be used to synchronize LED measurements with an external event such as an LED switching on.
The speed of the test is dependent on the intensity of the LEDs being tested, ie Bright LEDs have a shorter Test Time, Dimmer LEDs have a longer Test Time. The capture (measurement) of up to 20 LEDs is done in parallel and can be achieved in times as fast as 102ms depending on the Intensity (Brightness). The data is read back from each fiber sequentially and takes approximately 5ms per fiber, for example:
– 1 LED Capture Time is 2ms and Read Back is 5ms, Total 7ms. – 20 LEDs Capture Time is 2ms and Read Back is 100ms, Total 102ms.
– 1 LED Capture Time is 650ms and Read Back is 5ms, Total 655ms. – 20 LEDs Capture Time is 650ms and Read Back is 100ms, Total 750ms.
| Range | Capture Time |
|---|---|
| C (Auto Capture) | 350ms |
| C1 (Low Intensity) | 650ms |
| C2 (Medium Intensity) | 200ms |
| C3 (High Intensity) | 22ms |
| C4 (Super High Intensity) | 4ms |
| C5 (Ultra High Intensity) | 2ms |
| USB/RS232 | |
|---|---|
| – Red, Green, Blue (RGB) | |
| – Hue, Saturation, Intensity (HSI) | |
| – Dominant Wavelength | |
| – CCT | |
| – CIE xy | |
| – CIE u'v' | |
| Frequency Out | |
| – Hue, Saturation, Intensity (HSI) | |
| Synchronous Serial | |
| – Red, Green, Blue (RGB) | |
| – Hue, Saturation, Intensity (HSI) | |
| – CCT | |
| – CIE xy |
Data sheet: Feasa_LED_Analysers1
Maintenance and calibration :
► We also have calibration certificate attached ( optional )
► Please re-calibrate after use for a certain period through our purchase store.
DISTRIBUTED BY:
Semiki instrumentation Co., Ltd
Email: sales@semiki.com
Office tel: +84 28 2253 3522
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