3nh colour meters

Colorimetry is the measurement of colour. Though a variety of instruments are available for measuring colour, colourmeters have been found to be the most reliable means and are hence widely used. In some industries, they are also referred to as colorimeters.

3nh is a reputed leader in the science of color measurement. It produces different types of instruments for measuring colour and parameters associated with it. A testament to this is the number of international scientific papers mentioning 3nh’s products. Since its instruments are versatile and can be used in color assessment of all types of surfaces including solids, liquids, pastes, gels, powders, and pellets, they find diverse applications.

3nh Colorimeter Models

To harness its expertise and cater to different markets, 3nh offers different models of colour meters with each one having certain specific features necessary for that application. The following are the different types of colour meters from 3nh Technology:

  • NR100
  • NR110
  • NR145
  • NR20XE
  • NR60CP
  • NH300
  • NH310

Illuminating/Viewing Geometry

8/d(8°illumination angle/diffuse viewing); Conforms to CIE No.15,GB/T 3978.

Illumination

LED white light

Detector

Silicon photoelectric diode

Measuring Aperture

Φ8mm flat aperture; Φ4mm tip aperture

Color Space

CIE LAB

Color Difference Formula

ΔE*ab

Observer Angle

CIE 10°

Light Source

D65

Displayed Data

Chromaticity Values, Color Difference Values/Graph, PASS/FAIL Result, Color Offset

Measuring Time

1.0s

Repeatability

Standard deviation within ΔE*ab 0.03 (Average of 30 measurements of standard white plate)

Errors Between Each Equipment

Within ΔE*ab 4

(Average for 12 BCRA Series II color tiles)

Data Memory

100pcs standards 10000pcs samples

PC Software

No

Standard Accessory

Power Adapter, User Guide, Wristbands, Φ8mm flat aperture; Φ4mm tip aperture.

Illuminating/Viewing Geometry  

8/d

Measuring Aperture                      

Φ4mm

Detector

Silicon photoelectric diode

Locating

Illuminating Locating/Cross Locating

Measurement End Face

Large stable end-face and small concave-convex end-face

Color Space

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

Color Difference Formula

△E*ab △L*a*b* △E*C*h*

Light Source

D65

Light Source Device

LED blue light excitation

Errors Between Each Equipment

≤0.80ΔE*ab

Storage

100pcs standards 20000pcs samples

Repeatability

Standard deviation within ΔE*ab 0.08 Average of 30 measurements of standard white plate

PC Software

CQCS3 Software                                                                      

Illuminating/Viewing Geometry

45°/0°

Measuring Aperture

Φ8mm

Measurement End-face

Large stable end face and small concave-convex end face

Detector

Silicon photoelectric diode

Locating

Illuminating Locating/Cross Locating

Color Space

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

CIEXYZ

Color Difference Formula

△E*ab △L*a*b* △E*C*h*

Light Source

D65

Light Source Device

LED blue light excitation

Errors Between Each Equipment

≤0.80ΔE*ab

Storage

100pcs standards 20000pcs samples

Repeatability

Standard deviation within ΔE*ab 0.08

Average of 30 measurements of standard white plate

PC Software

CQCS3 Software                                            

 Illuminating/Viewing Geometry45°/0°
Measuring ApertureΦ20mm
 Special FunctionEspecially suitable for testing surface stripe and wet products
 LocatingIllumination Locating/Cross Locating
 DetectorSilicon photoelectric diode
 LocatingIlluminating Locating/Cross Locating
 Color SpaceCIEL*a*b*C*h*; CIEL*a*b*; CIEXYZ
 Color Difference Formula△E*ab; △L*a*b*; △E*C*h*
Light SourceD65
Light Source DeviceLED blue light excitation
 Errors Between Each Equipment≤0.50ΔE*ab
 Storage100pcs standards 20000pcs samples
 RepeatabilityStandard deviation within ΔE*ab 0.08  Average of 30 measurements of standard white plate
 PC SoftwareCQCS3 Software
Illuminating/Viewing Geometry:8°/ d
Light Source: LED Light
Sensor:silicon photodiode array
Measuring aperture:Φ8mmflat aperture; Φ4mmtip aperture
Color Space:CI E L AB,XYZ,LCh, CI E RGB,CI E LUV
Color Difference Formula:ΔE* ab, ΔE( h) , ΔE* uv,ΔE* 94, ΔE*cmc ( 2: 1) , ΔE*cmc ( 1: 1) , ΔE* 00
Other Chromaticity Data:WI (E313,CI E, AATCCHunter),YI ( D1925,313),Color Fastness, Staining Fastness, J PC79, BFD( 1. 5: 1), FMCI I
Observer:CI E 10°
Illuminant:D65,A,C,D50,F2,F6,F7,F8,F10,F11,F12
Display Data:Colorimetric Value, Color Difference Value/Graph, PASS/FAIL Result, Color Offset,
Measuring Time:0.4s
Repeatability:ΔE* ab 0. 03 (Average of 30 measurements of standard white plate within 5s)
Errors between each instrument:within Delta E*ab 0.2
PC software:CQCS3 software

Illuminating/Viewing Geometry

8/d

Measuring Aperture

Φ8mm

Detector

Silicon photoelectric diode

Color Space

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

Color Difference Formula

△E*ab △L*a*b △E*C*h

Light Source

D65

Light Source Device

LED blue light excitation

Errors Between Each Equipment

≤0.40ΔE*ab

Storage  

100pcs standards 20000pcs samples

Repeatability

Standard deviation within ΔE*ab 0.07

Average of 30 measurements of standard white plate

Data Interface

USB

Extended Aperture (optional)

Illuminating/Viewing Geometry

8/d

Measuring Aperture

Φ8mm/Φ4mm

Detector

Silicon photoelectric diode

Color Space

CIEL*a*b*C*h* CIEL*a*b* CIEXYZ CIERGB CIEL*u*v* CIEL*C*h Yellowness & Whiteness Color Fastness

Color Difference Formula

△E*ab △L*a*b* △E*C*h* △ECIE94 △Ehunter

Light Source

D65 D50 A

Light Source Device

LED blue light excitation

Errors Between Each Equipment

≤0.40ΔE*ab

Storage  

100pcs standards 20000pcs samples

Repeatability

Standard deviation within ΔE*ab 0.06

Average of 30 measurements of standard white plate

Weight  

500g

Dimension

205×70×100 mm

Extended Aperture (optional)

Φ8mm extended aperture, available for measuring concave surface

Printer (optional)

Miniature thermal printer

Colour meters vary based on a few factors which change the applications for which each model can be used. The following are the varying factors in different colour meter models.

Light Source

The perception of the colour of an object varies based on the light in which it is viewed. Hence, it is necessary to have standard illuminants to get a standardized colour value. The Commission International de l’Eclariage (CIE) has standardized light sources based on the amount of emitted energy at each wavelength.

The commonly used light sources for colour measurement are:

  • Daylight D65, C
  • Incandescent light A
  • Fluorescent light F2, F11

Observer

The observer is the human eye viewing the object. It continuously analyses all sorts of colour around it and sends the data to the brain. According to the three-component theory, our eyescan only sense the three primary colors of light—red, green, and blue. Every other colour in the visible spectrum is a unique mixture of these three colours.

To determine the sensitivity of eye receptors, CIE has done several tests. Based on the results of these studies, two viewing angles have been standardized—2° and 10°. These angles represent both small and large fields of view.

Colour Systems

Over the years, there have been several attempts to objectively define and express colour. This was to ensure easy and accurate exchange of colour information. Just like how length is expressed in numbers, various methods were proposed to express colour numerically.

Two of the most popular colour systems are Yxy and L*a*b. The former was developed based on the tri-stimulus theory of colour perception while the latter was developed to give a more balanced colour difference, which is relative to parallax. In the modern day, both are widely applied in color communication.

Colour Values ΔE, CIE LCB & CIE LAB

The CIE LAB is one the most used colour systems worldwide. It was developed by the International Commission on Illumination (ICI). The CIE LAB colour space defines colour in 3 axes mutually perpendicular to each other i.e. L, A, and B axes.

L defines colour in lightness, having values from pure white to pitch black

A defines colour in red-green scale

B defines colour in blue-yellow scale

For a sample measured, the colour meter will provide colour values in each axis (L, A, B).

Apart from the LAB colour scale, other popular colour scales include LCH scale, Hunter LAB scale, and a few others.

ΔE is used to measure the difference in colour between two surfaces. This parameter is usually employed in quality control to ensure consistency by comparing the produce with the master sample. Colour difference is defined by the following formula:

Colour Meter Applications

Since measuring the colour of various surfaces is important in numerous different fields, 3nh colorimeters are found useful in numerous industries including:

Food & Beverages

The colour of grains, flour, fruits, and vegetables is used as a parameter to assess the quality of the product. With research on agriculture and food industry gaining ground with every passing day, colour measurement has become an integral part of the food and beverages sector.

Packaging

There are more than ten million colours that the human eye can perceive. Aesthetic appearance and packaging of products play a major role in determining the sales of products. Hence, colour meters are used to objectively measure the colour of packaging material and analyse how they are perceived by consumers.

Paint

Paint is a commonly used material to enhance the look of objects. It plays a major role in buildings, automobile, plastics, and so on. Hence, international manufacturers aim to standardize the colour of their products. Colour meters are useful instruments to have for such applications.

Other Industries

Other than the above-mentioned industries, colour meters are also widely used in textile, automobile, plastic, chemical, and pharma companies.

Colour meters price

Agaram Industries is the authorized distributor of 3nh colorimeters in India. To get a quotation with the colour meter price, you can fill up this form or directly send an email to sales@agaramindia.com.

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