Cooke cal-COLOR II Calibrated Precision Digital Colormeter

The ergonomically designed cal-COLOR II provides accurate and sensitive measurements of illuminance, correlated color temperature (CCT) and chromaticity coordinates (x,y) of a wide variety of light sources and display areas – all in a compact, portable, easy-to-use meter.

The cal-COLOR II uses special filtered Si-PIN photodiodes to achieve true tristimulus detection over a wide range of light dynamics and color measurement ranges. Special attention to the blue spectral range achieves improved accuracy measurements of high color temperature lights such as solid state lighting (SSL) and high brightness LED’s.

From illuminance values for indoor and outdoor lighting, to readings of color temperature for projectors and displays, to determining the performance of LED’s, the cal-COLOR II provides the answers.

• Measuring Range and Accuracies:Illuminance:
  Autoranges: 0.1 to 100,000 lux or 10,000 fc Overall Accuracy: ±5% of displayed valueColor Temperature:
  Autoranges 1000 to 10,000KChromaticity Coordinates:
  x, y: 0 to 0.800 ±0.010
• Units: User selectable units fc or lux by depressing the ON button twice
• Auto-power Off: After approximately 1 minute
• Calibration: Calibrations and re-calibrations are performed by The COOKE Corporation with traceability to the National Institute of Standards and Technology, Gaithersburg, MD USA
• Light Sensor: Si-PIN photodiodes with integrated tristimulus filters (X,Y, Z) with Cosine Correction. Diameter 20 mm, angled 70° from display face.
• Display: Easy to read 46 x 30 mm LCD displays measuring units and battery diagnostics
• Battery (included): 9V Alkaline 100 hours life in ON position 4 years life in OFF position
• Temperature Range Operation: 32° to 130°F ( 0° to 55°C) Storage: -4° to 160°F (-20° to 70°C)
• Carrying Case: Soft protective cover for safe storage and transport
• Dimensions: 9.5 x 3.0 x 1.2” (241 x 76 x 30 mm)
• Weight: 9.3 oz (265 g)
• Includes calibration certificate, integral stand, instructions, carrying case and battery

• Cooke CalColor II Datasheet.pdf