Luminous Flux Photometer
P-2000-1 Optometer
VL-1101-2 Photometer Detector
ISD-100HF-V03 Integrating Sphere

The P-2000-1 with ISD-100HF-V03 integrating sphere detector is a laboratory grade instrument for the measurement of luminous flux of all directional lamps in 4π configuration (bulb type sources). The integrating sphere opens/closes for set-up and operation of the test lamp in its center. Different types of test lamp are easily mounted using the supplied height adjustable sample holder which offers a universal hole pattern platform and four lead connector. Optional lamp holders for standard lamp sockets (E14, E27, E40, G9, GU10) and others are available. A VL-1101-2 photometric detector with precise matching of its CIE V(λ) spectral sensitivity is assembled on the sphere. The detector features a cosine diffuser for better integration characteristic. The P-2000-1 supports the wide linear dynamic range of the photodiode detector. The measurement device is calibrated in lumen and includes the relative spectral sensitivity of the photometric detector with the integrating sphere for uncertainty check and correction for monochromatic or line spectrum light sources. . Another unique feature is the possibility for self calibration by the end-user or its national calibration laboratory with the ability to re-program the new calibration data in the meter for direct reading. For this purpose Gigahertz-Optik offers luminous flux calibration lamp standards with traceable calibration to PTB and NIST.