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Compact Bi-Tec measurement device for the measurement of illuminance and luminous flux. Features: Bajonett adapter with diffusor for the BTS256-LED, +/- 30° cosine corrected field of view, spectral radiant power, color temperature, CRI, chromaticity coordinates, etc.
The compact BTS256-LED meter is designed to measure the luminous flux, spectrum, color, and color rendering index of LEDs. One of its key features is the conical measurement port at the entry of the integrating sphere for measurement of individual onboard LEDs. The conical adapter is attached using a bayonet connector which makes it possible to use the BTS256-LED with other entrance optic options. Gigahertz-Optik also offers different accessories as part of the BTS256-LED Plus Concept with which the capabilities of the BTS256-LED can be enhanced.
Enhancement of the BTS256-LED using the diffusor window
The addition of the BTS256-LED-DA diffusor window to the BTS256-LED makes it possible to use the device for illuminance measurements. It provides the required cosine correction over a +/- 30o degree field of view and is therefore only recommended for measurement of directional lamps. Illuminance measurement of extended lighting systems and street lights should be performed using Gigahertz-Optik’s MSC15 and BTS256-EF.
The BTS256-LED-DA diffusor window is also necessary when the BTS256-LED is to be combined with the GB-GD-360-R40-2 goniometer to measure the luminous intensity radiance distribution.
Calibration
One essential quality feature of photometric devices is their precise and traceable calibration. The BTS256-LED-DA with BTS256-LED is calibrated by Gigahertz-Optik’s calibration laboratory that is accredited by DAkkS (D-K-15047-01-00) for the spectral responsivity and spectral irradiance according to ISO/IEC 17025. The calibration also included the corresponding accessory components. Every device is delivered with its respective calibration certificate.
BTS256-LED with the BTS256-LED-DA diffusor window for illuminance measurements.
1) BTS256-LED & BTS256.LED-DA 2) Integrating sphere 3) Precision bayonet mount with diffus window 4) BiTec sensor with Si photodiode, CMOS diode array spectrometer and shutter 5) Microprocessor 6) USB 2.0 interface 7) Light incident 8) Conical measurement port with precision bayonet mount
BTS256-LED with the BTS256-LED-DA diffusor window for measurement of the luminous intensity radiance distribution using the GB-GD-360-R40-2 goniometer.
