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- Measurement ranges:
Maximum illuminance e.g. in connection with P-9710 (1 mA max): 2,000,000 lx, resolution with P-9710: 2 mlx
Maximum illuminance e.g. in connection with X-1 (200 µA max): 400,000 lx
- Typical applications: Measurement of illuminance in general and special lighting. Measurement tasks accompanying production.
- Calibration:
Calibration of illuminance sensitivity in A/lx. Calibration of the relative spectral responsivity.
Calibration uncertainty: irradiance ± 3.2 % (k=2)
- Specification:
Spectral responsivity: photometric V(λ)
f1' (spectral mismatch): f1' ≤ 3%
Typical responsivity: 0.5 nA/lx
Max. signal current: 1 mA
Input optics: Diffuser window 7mmØ
f2 (directional response/cosine error): f2 ≤ 1.5%
Connector: coaxial cable 2m Long, calibration data connector (VL-3701-2)
Temperature range: 5 - 40 °C
- Accessories: Optional waterproof retrofitting of the VL-3701 detector using quartz dome and o-ring reinforcement of the base plate.









