Portable Color Difference Meter Color meter

Portable Color Difference Meter (HP-2132)

I. Technical Features

1. Easy operation make you use it easily

2. Widely applied to quality control of plastic and printing industries

3. Display directly color difference by  ΔE*ab, ΔL*a*b, CIE_L*a*b, CIE_L*C*h

4. Standard deviation within ΔE*ab0.2(test condition: choose average values by 12pcs white tabula)

5. It can be connected with computer to do the inspection by software with USB expansion interface.

II. Skills Indications

CIE ColorSpace Coordinate ChartConnecting with Computer to do the analysis

COLOR DIFFERENCE FORMULA

ΔE*_ab=[(ΔL*)²+(Δa*)^2.+(Δb*)²]^1/2

ΔL*=_Lsample-L*_standard(lightness difference)

Δa*=a*_Lsample-a* _standard(red/green difference)

Δb*=b*_Lsample-b _standard.mmd(yellow/blue difference)

III. Working~theory                         

Compare the color difference between sample and the measured subject then

output CIE_Lab 3 groups data, and the 4 groups of ΔE, ΔL, Δ a, Δb data after comparision

ΔE stands for the total color difference.

ΔL+stands for partial white, ΔL-stands for partial black (cornpa ring with p rototype)

Δa+stands for partial red, Δa—stands for partial green (comparing with p rototype)

Δb+stands for partial yellow, Δb-stands for partial blue (comparing with plrototype)

We can make and manufacture products according to customer specific needs. 

provide best and professional service for you, pls contact with us freely; 

Stable performance, best price, good quality , good after-sales service

Usage: laboratory products

Product name: Portable Color Difference Meter (HP-2132), China color difference meter

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