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262,90 €
Lux Meter
Measurement range up to 150,000 lx / Measures correlated color temperature (CCT) / Standard chromaticity diagrams according to CIE 1931 and CIE 1976 / Indicates wavelength / Presents tristimulus and RGB values / Includes USB interface, cable and PC software
With the LED lux meter, important photometric factors in the field of light measurement can be determined. These include the tristimulus values of XYZ, the u´ and v´ color location coordinates according to CIE 1976, and the xy color location coordinates according to CIE 1931. Moreover, further color statistics are measured as absolute values and differences. The user can determine the dominant wavelength within the sensitivity range of the LED spectrophotometer, which is 360 … 780 nm, as well as the color density (Pe) and the correlated color temperature (CCT) in Kelvin.
Also, the lux meter can measure the illuminance in lux (lx) or foot-candle (fcd) as well as the light flux in lumens (lm) and show the color location in the RGB color space. Due to the ergonomic single-handed operation, the large display, memory, data interface and software, measurements with the lux meter can be carried out quickly and the results are reproducible. The test results can be recorded by means of the software. Its specifications make the lux meter perfectly suitable to classify and optimize lighting installations and conditions in various fields of application.
| Measurement functions | Tristimulus values: XYZ Chromaticity: Ev xy, Ev u'v' Correlated colour temperature: Tc Colour difference: Δ (XYZ), Δ (Evxy ), Δ (Evuv ), ΔE v ΔTc Δuv Chromaticity coordinates: ICE1931 (x, y), ICE1976 (u, v) Dominant wavelength: λd Colour fastness: Pe Luminous flux: Φ, RGB parameter, colour chart, maximum recording and indicator |
| Measuring range | 0.1 ... 150,000 lx 0.01 ... 15000 fcd Ev: 5 lx / 0.5 fcd or above in four automatically selected ranges (lx or fcd is switchable) |
| Spectral range | 360 ... 780 nm |
| Relative spectral sensitivity | Based on CIE standard X (λ), y (λ), and Z (λ), deviation within 6% (f1 ') of CIE spectral luminous efficiency V (λ) |
| Cosine correction | Ev: < 3% (f2) |
| Accuracy | Ev : ± 5 % ± 1 digit of displayed value Xy: ± 0.003 lx (at 500 lx, standard A) |
| Repeatability | Ev : ± 0.5% + 1 digit (2σ) xy: ± 0.0005 (measured at 500 lx, standard A) |
| Temperature drift | Ev : ± 3% ± 1 digit of the indicated value xy: + -0.003 |
| Response time | 0.5 second (for continuous measurement) |
| Sensor type | Silicon photocell |
| Interface | USB Slot for SD card |
| Display | 3.2" color LCD |
| Operating conditions | -10 ... 40°C / 14 ... 10°F <85% RH |
| Storage conditions | -20 ... 40°C / -4 ... 104°F <85% RH |
| Power supply | 2200-mAh rechargeable lithium-ion battery |
| Battery life | Min. 12 hours |
| Dimensions | 210 x 80 x 35 mm / 8.2 x 3.1 x 1.37 in |
| Weight | 300 g / < 1 lb including battery |
