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Product Description
| Chroma Light Meter Plus with Coordinate Measuring |
| Model | ST522 |
| Sensor Element | SPC (Silicon photocell) |
| Measuring Function |  |
| Measuring Range | Ev:0~80000 lx(0~7432 fcd) CT:99990 K Max. |
| Accuracy (at 25°C, 60% RH) | Ev:± (3%+2 Digital) (3000 lx, standard illuminant A measured) x, y:± 0.02 (100 lx, RGB LED Light) |
| Resolution | Ev:1(0~9999),10(Over 10000) , lx ; 0.1(0.0~999.9),1(Over 1000), fcd ; CT:1(0~9999),10(Over 10000), K ; x, y:0.001 ; u', v':0.001 |
| Response Time | Approx. 1 sec. |
| Repeatability | x, y:±0.003(100 lx, RGB LED Light) |
| Temperature Drift | Ev:± (5%+2 Digital) (3000 lx, standard illuminant A measured) x, y:± 0.008 (100 lx, RGB LED Light) |
| Humidity Drift | Ev:± (3%+2 Digital) (3000 lx, standard illuminant A measured) x, y:± 0.005 (100 lx, RGB LED Light) |
| Operation Temperature Range | 32°F to 122°F (0°C to 50°C),Less than 80% RH |
| Store Temperature Range | 14°F to 140°F (-10°C to 60°C),Less than 85% RH |
| Power Source | 9V Battery |
| Battery Life | 70 hours or longer continuous use |
| Multi-Display | Triple readings |
| Over range indication | Yes (''-H I-'') |
| Auto Power Off | 10 Minutes of idle |
| Data Hold | YES |
| Self-correcting function | Allows illumination and color temperature self-correction |
| Measuring light source | General light source |
| Color temperature Calibration light source | - |
| Color temperature display function (Light source can be selected) | FL,INC,LED |
| Weight | 6.3 oz.(179g)without battery |
| Dimensions | Main Instrument:5.5 x 1.9 x 1.1 inch(140 x 49 x 29 mm) Sensor Probe:6.5 x 2.0 x 1.4 inch(165 x 50 x 36 mm) |
| Accessories | 9V Battery x1, Instruction manual x1, Carrying case x1 |
| Model | ST520 | ST522 | ST520S |
| Sensor Element | SPC (Silicon photocell) | ||
| Measuring Function | | | |
| Measuring Range | Ev:0~80000 lx(0~7432 fcd)CT:99990 K Max. | ||
| Accuracy (at 25°C, 60% RH) | Ev:± (3%+2 Digital) (3000 lx, standard illuminant A measured) x, y:± 0.02 (100 lx, RGB LED Light) | ||
| Resolution | Ev:1(0~9999),10(Over 10000) , lx ;0.1(0.0~999.9),1(Over 1000), fcd ;CT:1(0~9999),10(Over 10000), K ;x, y:0.001 ; u', v':0.001 | ||
| Response Time | Approx. 1 sec. | ||
| Repeatability | x, y:±0.003(100 lx, RGB LED Light) | ||
| Temperature Drift | Ev:± (5%+2 Digital) (3000 lx, standard illuminant A measured) x, y:± 0.008 (100 lx, RGB LED Light) | ||
| Humidity Drift | Ev:± (3%+2 Digital) (3000 lx, standard illuminant A measured) x, y:± 0.005 (100 lx, RGB LED Light) | ||
| Operation Temperature Range | 32°F to 122°F (0°C to 50°C),Less than 80% RH | ||
| Store Temperature Range | 14°F to 140°F (-10°C to 60°C),Less than 85% RH | ||
| Power Source | 9V Battery | ||
| Battery Life | 70 hours or longer continuous use | ||
| Multi-Display | Triple readings | ||
| Over range indication | Yes (''-H I-'') | ||
| Auto Power Off | 10 Minutes of idle | ||
| Data Hold | YES | ||
| Self-correcting function | NO | Allows illumination and color temperature self-correction | Allows color temperature self-correction |
| Measuring light source | General light source | LED light source | |
| Color temperature Calibration light source | A light source | - | LED light source |
| Color temperature display function (Light source can be selected) | NO | FL,INC,LED | NO |
| Weight | 6.3 oz.(179g)without battery | ||
| Dimensions | Main Instrument:5.5 x 1.9 x 1.1 inch(140 x 49 x 29 mm)Sensor Probe:6.5 x 2.0 x 1.4 inch(165 x 50 x 36 mm) | ||
| Accessories | 9V Battery x1, Instruction manual x1, Carrying case x1 | ||
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