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Menu meas – Konica Minolta ILLUMINANCE METER LUMINANCE METER CHROMA METER T-10A /T-10MA/ T-10WSA/T-10WLA User Manual

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12

13

General color-rendering index (Ra)

The average of the color-rendering indexes for test colors No.

1 to 8.

Special color-rendering indexes (Ri)

The individual color-rendering index for test colors No. 1 to 15

(The index for each individual color is evaluated.)

Main Specifications of CL-500A

Model

Illuminance Spectrophotometer CL-500A

Illuminance meter

class

Conforms to requirements for Class AA of JIS C 1609-1: 2006

"Illuminance meters Part 1: General measuring instruments"*

1

Conforms to DIN 5032 Part 7 Class B

Spectral wavelength

range

360 to 780 nm

Output wavelength

pitch

1 nm

Spectral bandwidth

Approx. 10 nm (half bandwidth)

Wavelength precision ±0.3 nm (Median wavelengths of 435.8 nm, 546.1 nm, and 585.3 nm*

2

as

specified in JIS Z 8724)*

3

Measuring range

0.1 to 100,000 lx (chromaticity display requires 5 lx or more)

Accuracy*

4, 5

(Standard Illuminant A)

E

v

(Illuminance) : ±2%±1 digit of displayed value

xy: ±0.0015 (10 to 100,000 lx)

xy: ±0.002 (5 to 10 lx)

Repeatability (2σ)*

4

(Standard Illuminant A)

E

v

: 0.5%+1 digit

xy: 0.0005 (500 to 100,000 lx)

xy: 0.001 (100 to 500 lx)

xy: 0.002 (30 to 100 lx)

xy: 0.004 (5 to 30 lx)

Visible-region relative

spectral response

characteristics (f

1

')

Within 1.5% of spectral luminous efficiency V (λ)

Cosine response (f

2

) E

v

: Within 3%

Temperature drift (f

T

) E

v

: ±3% of displayed value; xy: ±0.003

Humidity drift (f

H

)

E

v

: ±3% of displayed value; xy: ±0.003

Measurement time

Super Fast mode: Approx. 0.2 sec. (when connected to computer);

Fast mode:

Approx. 0.5 sec.;

Slow mode:

Approx. 2.5 sec.;

Automatic exposure time setting (high accurary) mode:

Approx. 0.5 to 27 sec.

Display modes

XYZ; X

10

Y

10

Z

10

; E

v

xy; E

v

u'v'; E

v

; Dominant wavelength, Excitation purity;

Correlated color temperature, uv; General color-rendering index (Ra);

Special color-rendering indexes (Ri (i=1~15)); Spectral graph; Peak

wavelength; (XYZ); (X

10

Y

10

Z

10

); (E

v

xy); (E

v

u'v'); Rank display

Other functions

Data memory: 100 data; User calibration function (when connected to

computer); Continuous measurement (when connected to computer);

Auto power off function

Display languages

English, Japanese, Chinese (Simplified)

Interface

USB 2.0

Power

Rechargeable internal lithium-ion battery (Operating time per charge:

Approx. 6 hours when new); AC adapter; USB power bus

Operating temperature/

humidity range

-10 to 40°C, relative humidity of 85% or less (at 35°C) with no

condensation

Storage temperature/

humidity range

-10 to 45°C, relative humidity of 85% or less (at 35°C) with no

condensation

Dimensions

(W × D × H)

70 Ч 165 Ч 83 mm

Weight

350 g

*1 For Section 7.6.3 Response Time, when measurement speed mode is set to FAST mode.
*2 For 585.3 nm, evaluation performed using substitute wavelength of 587.5 nm.
*3 Based on Konica Minolta test standards (change in temperature of 2°C or less after zero

calibration.)

*4 Automatic exposure time setting (high accuracy) mode
*5 Linear for E

v

(Illuminance)

System diagram

To learn more about the theory and practice of light and color measurement, please visit

http://www.konicaminolta.com/instruments/knowledge/index.html

Since long ago, man has compared colors by arranging objects

side-by-side and looking at them under natural light (sunlight).

Although torches, candles, incandescent lamps and other light

sources are also used for illumination, it has always been the

standard practice to compare colors under natural light.

In addition to fluorescent lamps, LEDs (light emitting diodes) have

recently been adopted as illuminating lamps. When comparing how

these new types of lamps make objects look against how natural

light makes them look, how closely the appearances match is called

the “color-rendering property” of the lamp. A lamp that produces

a hue similar to that of natural light is said to have a good (high)

color-rendering property.

The color-rendering index is a quantification of the color-rendering

properties of a lamp or other light source, and was defined to

provide objective criteria. The color-rendering index expresses the

comparison between the light source being tested and a standard

illuminant*. The maximum value is 100, with the value decreasing

as the color-rendering difference increases, indicating how far the

appearance under the test light source is from the natural color

under sunlight.

* Standard illuminant with the same color temperature as the light source

being tested. (Light along the blackbody locus corresponds to sunlight.)

The general color-rendering
index uses low-chroma colors
with a Munsell Value of 6 and
Chroma between 4 and 8.

No. 9 to No. 15 are realistic
colors. No. 15 is the
average skin color of Asian
women.

Smaller index

values indicate

larger color shifts.

No. 1

Test - color samples

No. 2

No. 3

No. 4

No. 5

No. 6

No. 7

No. 8

No. 9

No. 10

No. 11

No. 12

No. 13

No. 14

No. 15

Red

Yellow

Green

Blue

Average

Caucasian

skin color

Tree-leave

green

Average

Asian

skin color

D50

fluorescent lamp

Daylight white

fluorescent lamp

LED bulb

Standard Accessories

Wrist Strap

CR-A73

Cap

T-A13

*Shape may vary

by region.

Data Management

Software

CL-S10w

Illuminance

Spectrophotometer

CL-500A

USB Cable

IF-A17

Soft Case

FD-A05

AC adapter *

Optional

Accessories

Hood

CL-A11

Personal computer

(Commercial product)

演 色 性 と は

What is color-rendering property?

Main specifications of Data Management

Software CL-S10w

Type

Add-in for Excel

®

(Excel

®

is required to use this add-in.)

Operating

environment

One of the following environments with Excel

®

installed:

* Languages in parenthesis ( ) are the OS language.

Windows

®

XP Professional 32-bit SP3, 64-bit SP2

+ Excel

®

2003 (English, Japanese, or Simplified Chinese)

Windows

®

7 Professional 32-bit, 64-bit

+ Excel

®

2010 (English, Japanese, or Simplified Chinese)

* For details on system requirements for above versions

of Windows

®

and/or Excel

®

, refer to their respective

specifications.

* Not compatible with 64-bit versions of Excel

®

.

Compatible

instruments

CL-500A, CL-200A, CL-200

Display items Spectral irradiance (W/m

2

/nm); general color-rendering index

Ra, correlated color temperature, etc.

Konica Minolta Measurement Fundamentals

Dimensions

(Units: mm)

MENU

MEAS.

165

95

95

45.2

10

.5

48

72

11

70

11

.2

Color-rendering indexes include the general color rendering index (Ra) and special color-

rendering indexes (R1 to R15)

Illuminance Spectrophotometer CL-500A

Illuminance Spectrophotometer CL-500A