Shanghai Selon Scientific Instrument Co., Ltd.
Main products:Spectrophotometer,Electronic Balance,Centrifuge,Oven,pH Meter
Contact Us
  • Contact Person : Mr. Tu Victor
  • Company Name : Shanghai Selon Scientific Instrument Co., Ltd.
  • Tel : 86-21-35100022
  • Fax : 86-21-65416501
  • Address : Shanghai,Shanghai,7/F, National Science Park of Shanghai University,No149,Yanchang Rd,Shanghai,China
  • Country/Region : China
  • Zip : 200072

Portable color difference meter

Portable color difference meter
Product Detailed
1.Widely applied to quality control of plastic and printing industries 2.Easy operation make you use it easily.


In 1931,the CIE(Commission Internationale De L'E'clalrage)setup a series of visible spectrum color space standards.The Basic CIE color space standardS iS iS built on standard visual observerson the basis of ability to see,and it reflects the standardS scope of color by eye.Based On CIE_XYZ there are CIE_XvY,CIE_Lab,CIE Lch standard color space,etc.

    At present,the CIE Lab color space iS the most commonly used in the industry.In ClE Lab color space,L value stands for color brightness and a value stands for the Green-0n-red value.and b value stands for the blueonyellow color value.If determine a value of color by only a group Lab,it will be not practical.However,we can determine the differences among them by comparing two groups of Lab values.


Technical Features

Easy operation make you use it easilyWidely applied to quality control of plastic and printing industriesDisplay directly color difference by E*abL*a*bCIE_L*a*bCIE_L*C*hStandard deviation withinE*ab0.2(test conditionchoose average values by 12pcs white tabula)It can be connected with computer to do the inspection by software with USB expansion interface Skills Indications
test accuracyWithin 0.2 E*a b
Test swpeL:0100  a-128--127  b-128--127
Test timeAbout 3 seconds
Test Interval2 seconds
Test aperture8mm
Automatic shutdownAutomatic shutdown after 5 minutes waiting
Light sourceC light source
SensorCorrect sillicon photodiode carrays
PowerDC5V(1.5A).2pcs 1.5V(AAA)batteries
Weight203.6g(Exclusive battery)
Ope rated temperature scope0-40 132-104'f);lower than 85% relative humidlty
Standard accessories1 pc nlanual/softwbag/9V battery/5v external power supplyUSB connecting cableCD
ApplicationMeasure any color Of smooth surface
 Workin~theory                          Compa re the color difference between sample and the measured subject thenoutput CIE_Lab 3 groups data,and the 4 groups of E,L,a,b data aftercomparisionE stands for the totaI color difference.L+stands for partial white,L-stands for partial black(cornpa ring with p rototype)a+stands for pa rtial red,astands for partial green(comparing with p rototype)b+stands for pa rtial yellow,b-stands for pa rtial blue(comparing with plrototype)
Color dif SCOpeColor dif.anylysis
0.0 25AEvery small or novery perfect matching
0.250.5Esmallacceptable matching
0.01.0Esmall to mediumacce-ptabIe in some areas
1.02.0EMediumacceptable in some a reas
2.04.0Ehas dislanceacceptable in special applications
4.0 Eve ry bignot acceptable in most applications

Portable color difference meter

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