The BTS256-LED light meter
In its standalone mode, the compact BTS256-LED meter is designed for the convenient measurement of luminous flux, spectrum, color, and color rendering index of single LEDs. A key feature is the conical measurement port at the entry of the internal integrating sphere which enables the measurement of onboard LEDs. The bayonet connector used to attach the conical adapter makes it possible to combine the BTS256-LED with other accessory components. Gigahertz-Optik offers different accessories as part of the BTS256-LED Plus Concept which greatly extends the measurement capabilities of the BTS256-LED.
Enhancement of the BTS256-LED using the ISD-100HF-V01 or ISD-100HF-V02 integrating sphere
The 100 cm diameter ISD-100HF-V01 integrating sphere makes it possible to measure the luminous flux, spectrum, color, and color rendering index of extra-large LED lamps with 2 pi and 4pi radiation characteristics inside the sphere. One half of the sphere can be opened in order to fix LED lamps onto the sample holder at the center of the sphere. The height of the sample holder can be adjusted. The ISD-100HF-V02 is offered as an alternative and has an additional measurement port with a 254 mm diameter for the measurement of 2pi lamps. This remains closed whenever it is not in use. Both variants are equipped with an auxiliary lamp. The BTS256-LED can still be used to measure single, onboard LEDs. A bayonet adapter enables connection of the device onto the ISD-100HF integrating sphere.
One essential quality feature of photometric devices is their precise and traceable calibration. The ISD-100-HF with the 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. Calibration for the luminous flux is performed using a BN-LHSF-104, which is placed at the sphere center. Spheres with an additional measurement port require additional calibration with a BN-LHSF-2P-20 calibration lamp, which has 2pi radiation characteristics in the integrating sphere. Every device comes with its respective calibration certificate.
4 lm to 400,000 lm, 360 nm to 830 nm
Inspection of incoming products (LED lamps), quality assurance in production processes, design
Factory calibration. Traceable to international standards
Luminous flux calibration +/-8%
|Input optic - ISD-100HF-V01||
Integrating sphere with barium sulfate coating. 1000mm internal diameter. An openable hemisphere. UMSH-AP-1000 height-adjustable sample holder.. Baffle between the detector and teh sphere center for lamps with an extent of up to 300mm. 12V/100W Halogen auxiliary lamp. Table stand.
This device is based on the BTS256-LED, please find detailed specification there.
|typical measurement time||
BTS256-LED: max. 1000 lm ≤ 5 ms (white light)
BTS256-LED: min. 10 mlm ≤ 30 s (white light)
BTS256-LED with ISD-100HF-V01: max. 400000 lm ≤ 5 ms (white light)
BTS256-LED with ISD-100HF-V01: min. 4 lm ≤ 30 s (white light)
|max. luminous flux||
BTS256-LED typ. 70000 lm
BTS256-LED with ISD-100 typ. 32000 klm
|Noise equivalent luminous flux||
BTS256-LED Tester typ. 0.05 mlm
|Produktname||Product Image||Description||Show product|
|UMLA-SHAP-E27||Bulbs measuring socket for the use with integrating spheres.
Features: E27 socket. Quadrupole connecting the lamp to a galvanically isolated power supply and voltage measurement
|UMLA-SHAP-E14||Bulbs measuring socket for the use with integrating spheres.
Features: E14 socket. Quadrupole connecting the lamp to a galvanically isolated power supply and voltage measurement
|UMLA-SHAP-G9||Bulbs measuring socket for the use with integrating spheres.
Features: G9 socket. Four-line connection of the lamp socket for a separate power supply and voltage measurement.
|UMLA-SHAP-GU10||Bulbs measuring socket for the use with integrating spheres.
Features: GU10 socket. Four-line connection of the lamp socket for a separate power supply and voltage measurement.
|UMLA-SHAP-GU5.3||Bulbs measuring socket for the use with integrating spheres.
Features: GU5.3 socket. Four-line connection of the lamp socket for a separate power supply and voltage measurement.
|S-SDK-BTS256||Software Development Kit for BTS256 variants.|