Models of portable color: M174518, the product can be widely used in textile, leather, plastic, printing and other industries than the color right.
First, the technical parameters：
Measurement accuracy
0.2 △ E * ab within
Display Properties
△ E * ab, CIE_Lab, △ Lab, CIE_Lch
L: 0 ~ 100 a: -128 ~ 127 b: -128 ~ 127
Test range
Measurement time
About 3 seconds
Measurement time interval
Measurement aperture
2 seconds
8mm
Storage function
Automatic storage of a set of standard colors (do not connect PC)
Stand 5 minutes, automatic shutdown
Measurement of light
Software simulation of C source
Automatic shutdown
Sensor
Silicon photodiode array calibration
Power Supply
9V Battery / 5V external power supply
Instrument Size
Weight
186g (without batteries)
171 * 50 * 48.8mm
Standard Annex
Manual / software package / 9V battery 1 / 5V external power supply / USB a / CD-ROM 1
Second, the main characteristics of
2, apparatus for the portable. There are two types of batteries and power supply external power supply, convenient and practical.
1, automatically compare a model with the seizure of the color difference between the goods, the output data and CIE_Lab three groups after colorimetric △ E, △ L, △ a, △ b four sets of color data to provide a reference for color matching program.
3, the expansion of installed USB interface, you can connect with the computer display. Facilitate the preservation of data, print statements.
Third, correlation analysis method
△ E the size of the total color difference
△ L + said partial white, △ L-said that the black side
△ a + that reddish, △ a-that the partial Green
△ b + said,△ b-said
Range
Color difference (tolerance)
0 - 0.25 △ E
0.25 - 0.5 △ E
Very small or no; ideal match
Small; acceptable match
0.5 -1.0 △ E
Small to medium; acceptable in some applications
1.0 -2.0 △ E
2.0 -4.0 △ E
Medium; acceptable in specific applications
More than 4.0 △ E
There are gaps; acceptable in specific applications
Very large; unacceptable in most applications
Color difference formula:
△ L = L sample-L Standard (brightness difference)
△ Eab = [(△ L *) 2 + (△ a *) 2 + (△ b) 2] 1 / 2
△ a = a sample-a standard (red / green difference)
△ b = b sample-b standard (yellow / blue differences)
1, the measurement data stored in the computer, at any time adjustable from a comparative analysis of historical data.
2, through the software of the curve shows the batch measurement charts and related data, and timely monitoring of fluctuations in the situation of product color.
Contact: Hong-Bo Wang
3, on the charts and data editing custom printout.
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