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Incident Color Meter

Measuring Instruments

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CS-100A

Luminance & Color Meters

Portable tristimulus colorimeter for light sources and irradiated objects. Allows luminance and chromaticity to be remotely measured with a 1° acceptance angle.

Specifications

Principal Specifications

Type SLR spot colorimeter for measuring light-source and surface luminance and chromaticity
Acceptance angle 1°
Optical system 85mm f/2.8 lens; SLR viewing system; flare factor less than 1.5%
Angle of view 9° with 1° measurement area indication
Focusing distance 1014mm (40 in.) to infinity
Receptors 3 silicon photocells filtered to detect primary stimulus values for red, green, and blue light
Spectral response Closely matches CIE 1931 Standard Observer curves
Response time FAST: Sampling time: 0.1s, Time to display: 0.8 to 1.0s; SLOW: Sampling time: 0.4s, Time to display: 1.4 to 1.6s
Luminance units: cd/m2 or fL (switchable)
Measuring range FAST: 0.01 to 299,000cd/m2 (0.01 to 87,530fL); SLOW: 0.01 to 49,900cd/m2 (0.01 to 14,500fL)
Accuracy Luminance (Y): ±2% of reading ±1 digit
Chromaticity (x,y): ±0.004 (Illuminant A measured at ambient temperature of 18 to 28°C/64 to 82°F)
Repeatability Luminance (Y): ±0.2% of reading ±1 digit
Chromaticity (x,y): FAST: Y 100cd/m2 or above: ±0.001; 48.1 to 99.9cd/m2: ±0.002; Below 48.1cd/m2: Below measurement range
SLOW: Y 25.0cd/m2 or above: ±0.001; 12.0 to 24.9cd/m2: ±0.002; Below 12.0cd/m2: Below measurement range (Measurement subject: Illuminant A)
Target value 1; set by measurement or numerical input
Measurement modes Absolute color: Yxy; Color difference: Δ(Yxy)
Display External: LCD; 3 values (Y, x, and y) of 3 digits each with additional indications
Viewfinder: 3-digit LCD (showing luminance value y ) with LED backlight
Data communication RS-232C; baud rate: 4800bps
External control Measurement process can be started by external device connected to data output terminal
Power source One 9V battery; Power can also be supplied via data output terminal
Operating temperature/humidity range 0 to 40°C, relative humidity 85% or less (at 35°C) with no condensation
Storage temperature/humidity range -20 to 55°C, relative humidity 85% or less (at 35°C) with no condensation
Dimensions (W × H × D) 79 × 208 × 154mm (3-1/8 × 8-3/16 × 6-1/16 in.)
Weight 890g (2 lb.) without battery
Standard accessories Lens cap; Eyepiece cap; Protective filter; ND eyepiece filter; 9V battery; Chromaticity chart; Case

Specifications are subject to change without notice.

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