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Precise and easy to use, this spectrometer makes photometry possible for everyone - whenever and wherever you need it. In addition, it features measured quantities, including illuminance, correlated color temperature, peak wavelength, and more.
Precise and easy to use, this spectrometer makes photometry possible for everyone - whenever and wherever you need it. In addition, it features measured quantities, including illuminance, correlated color temperature, peak wavelength, and more.
Measure various light conditions with the Gossen Metrawatt M521G Mavospec Base Spectrometer. This spectrometer provides precise, easy-to-read photometry measurements, with measured quantities that include illuminance, correlated color temperature, peak wavelength and more.
Features
| Sensor Technology, Measuring Uncertainty | |
| Sensor | CMOS image sensor, 256 pixels |
| Diffusor Light-Entry Surface | 0.3" (7 mm) diameter |
| Distance - Diffuser to Surface to be Measured | 0.98" (25 mm) |
| Error Limit - Cosine Correction | ≤3% (comparable with the f2 failure of a class B device according DIN 5032-7) |
| Spectral Range | 380 to 780 nm |
| Full Width at Half Maximum (FWHM) | ≤15 nm (typically 12 nm) |
| Resolution | Physical: ~1.72 nm Digital: 16 bit |
| Wavelength Reproducibility | ±0.5 nm |
| Integration Time | Automatic, manual, 10 to 3000 ms in 10 ms steps |
| Signal-to-Noise Ratio | 1000:1 |
| Spurious Light | -25 dB |
| Dark Stream Compensation | Automatic with integrated temperature sensor |
| Measurement Uncertainty | Illuminance/chromaticity/CCT/TM30/CRI/flicker: Standard light type A, 2856 K at 1000 lx Illuminance: ±3% CCT: ±2% TM30/CRI/flicker: ±1.5% |
| Reproducibility - Chromaticity | Standard light type A, 2856 K at 1000 lx ±0.0005 |
| Photometry | |
| Measuring functions | Illuminance Evis: 10 to 100,000 lx Color temperature (K): 1600 to 50000 K (Duv ≥-0,1) Duv – color temperature difference relative to the Planckian locus: (1600 K ≤ CCT ≤ 50,000 K) TM30 Fidelity Index Rf, Gamut Index Rg: IES TM-30-15 Color rendering indices Ra, Re, R1 to R15: CIE 13.3 ʎdominant - dominant wavelength: CIE 15 Purity - color purity: CIE 15 Chromaticity coordinates: CIE 1931 [x,y], CIE 1960 [u,v], CIE 1976 [u',v'] Flicker index: 0.00 to 1.00 (f ≤400 Hz und Flicker % ≥ 1%) Flicker as percentage: 1 to 100% (f ≤400 Hz) Flicker frequency: 2 to 6000 Hz (Flicker % ≤1%) |
| Units of Measure | lx/°C - fc/°F, selectable |
| General Specifications | |
| Operation, Interfaces, Memory | Display: 2.1" TFT color display, 320 x 240 pixels, brightness adjustable from 50 to 100%, shutdown adjustable from 0.5 to 5 minutes or off Controls: 3 keys, ring controller Languages: German, English Interface: USB 2.0, data transmission, battery charging, open interface protocol Data storage: 4 GB micro SDHC memory card, manual and automatic memory modes, CSV data format, memory occupancy per measurement: 2 kB, per thousand measurements: 2 MB |
| Power Supply | Mains power pack: 100 to 240 V AC (50/60 Hz) 0.15 A, USB socket: 5 V DC, 1 A Rechargeable battery: Li-ion, 3.7 V, 890 mAh, replaceable Charging time with power pack: 1.5 hours Operating time with rechargeable battery: ≥8 hours continuous operation |
| Temperature | Operating: 41 to 104°F (5 to 40°C) Storage: -4 to 158°F (-20 to 70°C) |
| Dimensions | 5.47 x 2.36 x 1.18" (139 x 60 x 30 mm) |
| Weight | 5.29 oz (150 g), meter with battery and memory card |
| Sensor Technology, Measuring Uncertainty | |
| Sensor | CMOS image sensor, 256 pixels |
| Diffusor Light-Entry Surface | 0.3" (7 mm) diameter |
| Distance - Diffuser to Surface to be Measured | 0.98" (25 mm) |
| Error Limit - Cosine Correction | ≤3% (comparable with the f2 failure of a class B device according DIN 5032-7) |
| Spectral Range | 380 to 780 nm |
| Full Width at Half Maximum (FWHM) | ≤15 nm (typically 12 nm) |
| Resolution | Physical: ~1.72 nm Digital: 16 bit |
| Wavelength Reproducibility | ±0.5 nm |
| Integration Time | Automatic, manual, 10 to 3000 ms in 10 ms steps |
| Signal-to-Noise Ratio | 1000:1 |
| Spurious Light | -25 dB |
| Dark Stream Compensation | Automatic with integrated temperature sensor |
| Measurement Uncertainty | Illuminance/chromaticity/CCT/TM30/CRI/flicker: Standard light type A, 2856 K at 1000 lx Illuminance: ±3% CCT: ±2% TM30/CRI/flicker: ±1.5% |
| Reproducibility - Chromaticity | Standard light type A, 2856 K at 1000 lx ±0.0005 |
| Photometry | |
| Measuring functions | Illuminance Evis: 10 to 100,000 lx Color temperature (K): 1600 to 50000 K (Duv ≥-0,1) Duv – color temperature difference relative to the Planckian locus: (1600 K ≤ CCT ≤ 50,000 K) TM30 Fidelity Index Rf, Gamut Index Rg: IES TM-30-15 Color rendering indices Ra, Re, R1 to R15: CIE 13.3 ʎdominant - dominant wavelength: CIE 15 Purity - color purity: CIE 15 Chromaticity coordinates: CIE 1931 [x,y], CIE 1960 [u,v], CIE 1976 [u',v'] Flicker index: 0.00 to 1.00 (f ≤400 Hz und Flicker % ≥ 1%) Flicker as percentage: 1 to 100% (f ≤400 Hz) Flicker frequency: 2 to 6000 Hz (Flicker % ≤1%) |
| Units of Measure | lx/°C - fc/°F, selectable |
| General Specifications | |
| Operation, Interfaces, Memory | Display: 2.1" TFT color display, 320 x 240 pixels, brightness adjustable from 50 to 100%, shutdown adjustable from 0.5 to 5 minutes or off Controls: 3 keys, ring controller Languages: German, English Interface: USB 2.0, data transmission, battery charging, open interface protocol Data storage: 4 GB micro SDHC memory card, manual and automatic memory modes, CSV data format, memory occupancy per measurement: 2 kB, per thousand measurements: 2 MB |
| Power Supply | Mains power pack: 100 to 240 V AC (50/60 Hz) 0.15 A, USB socket: 5 V DC, 1 A Rechargeable battery: Li-ion, 3.7 V, 890 mAh, replaceable Charging time with power pack: 1.5 hours Operating time with rechargeable battery: ≥8 hours continuous operation |
| Temperature | Operating: 41 to 104°F (5 to 40°C) Storage: -4 to 158°F (-20 to 70°C) |
| Dimensions | 5.47 x 2.36 x 1.18" (139 x 60 x 30 mm) |
| Weight | 5.29 oz (150 g), meter with battery and memory card |
