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Help CenterPortable Color Difference Meter Color Meter
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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
|
test accuracy |
Within 0.2 ΔE*a b |
|
Display |
ΔE*ab, CIE_Lab, ΔL, Δa, Δb, CIE_Lch |
|
Test swpe |
L:0—100 a: -128--127 b: -128--127 |
|
Test time |
About 3 seconds |
|
Test Interval |
2 seconds |
|
Test aperture |
φ8mm |
|
Automatic shutdown |
Automatic shutdown after 5 minutes waiting |
|
Light source |
C light source |
|
Sensor |
Correct silicon photodiode carrays |
|
Power |
DC/5V(1.5A).2pcs 1.5V(AAA)batteries |
|
Size |
171*50*48.8mm |
|
Weight |
203.6g(Exclusive battery) |
|
Operated temperature scope |
0-40 °c (132-104°F); lower than 85% relative humidity |
|
Standard accessories |
1 pc nlanual/softwbag/9V battery/ 5v external power supply/ USB connecting cable/ CD |
|
Application |
Measure any color Of smooth surface |
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)
|
Color difference Scope |
Color dif. anylysis |
|
0.0 25AE |
very small or no; very perfect matching |
|
0.25—0.5ΔE |
small; acceptable matching |
|
0.0—1.0E |
small to medium: acceptabIe in some areas |
|
1.0—2.0ΔE |
Medium: acceptable in some a reas |
|
2.0—4.0ΔE |
has dislance: acceptable in special applications |
|
4.0 ΔE |
ve ry big; not acceptable in most applications |
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
We do treasure and value our business working partnership with you, we are waiting for your enquiry and wish you all the best!
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