Measuring Geometry

Measuring apertures 

45°/0°

Ø20 mm (PCE-CSM 4)

Sensor

Silicium-photodiode

Color spaces

CIEL*a*b*C*h
CIEL a* b*
CIEXYZ

Formula for indifference in color

ΔE*ab
ΔL*ab
ΔE*C*H

Light source

D65

Type of light source

LED

Data memory

100 standards, 20000 samples

Aberrance in-between the utilities

≤0.50 ΔE*ab

Weight

500 g / 17.6 oz

Dimensions

205 x 67 x 80 mm / 8.07 x 2.6 x 3.14 in

Power Supply

rechargeable lithium-ion-batteries
3.7 V at 3200 mAh

Charging time

8 hours

Battery operation time

approx. 5000 measurements

Lifetime of lamp

5 years, more than 1.6 million measurements

Temperature range

0 ... +40 °C / 32 ... +104 °F

Relative humidity

0 ... 85 %, non-condensing

The L*a*b color space

Here you can see the color space L*a*b. This color space covers all colors that are visible with the naked eye. L=100 stands for white and L=0 for black. "a+" and "a-" or "b+" and "b-" stands for the color contrasts red, green, yellow and blue.

Main Functions of the Colorimeter PCE-CSM 4