X4 Light Analyzer
X4-BTS Irradiance & Illuminance Bi-Tech Sensor

The X4 Light Analyzer in combination with the X4-BTS sensor measures photometric illuminance and radiometric irradiance in absolute light measurement units. Its Bi-Tech sensor technology includes both filter detectors and spectrometer. The integral detectors match the CIE photopic, scotopic or radiometric UV-A, VISIBLE and NIR spectral sensitivities. They offer wide dynamic light intensity with the superior linearity of photodiodes. The diode array spectrometer provides spectral measurement data in the wavelength range from 315 to 1050nm which is used for:

• on-line correction of the integral detectors spectral mismatch uncertainty
• spectrum, peak wavelength, half-band width, peak wavelength intensity
• color temperature, xy and u’v’ chromaticity values, color rendering index

The X4-DE electronic device contains the diode array spectrometer and the electronics for the integral detectors. It is supplied in a bench-top housing or in a 19” 3HE housing for rack mount use. The X4-BTS sensor is built in a compact 45mm diameter housing which contains up to four photodiode filter detectors behind a 11mm diameter diffuser window. The diode array is connected by a flexible light guide to the detector head which includes a manually operated shutter for dark signal compensation as well as an optical density filter for increased diode array dynamic range. A remote controlled shutter is available on option. The X4 light analyzer with X4-BTS sensor can be combined with optionally available accessories, e.g. integrating spheres, luminance and radiance lenses and goniometric measurement bench. The light analyzer device is supplied with Window 7 compatible software for operation, data read out and data storage. The X4 light analyzer is calibrated for photometric and radiometric sensitivity of the integral sensors and the absolute spectral sensitivity of the diode array spectrometer within the wavelength range from 315nm to 1050nm. Calibration is performed by Gigahertz-Optik’s calibration laboratory for light measurement quantities against calibration standards traceable to national and international metrology laboratories. Re-calibration is recommended every 12 months.

BTS256_LED Tester_144dpi (English) - 4 MB