Konica Minolta ILLUMINANCE METER LUMINANCE METER CHROMA METER T-10A /T-10MA/ T-10WSA/T-10WLA Manuel D’Utilisation

8

9

Model

Chroma Meter CL-200A

Luminance meter 
class

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

meters Part 1: General measuring instruments"

Relative spectral 
response

Closely matches CIE Standard Observer curves x¯

(

λ)

, y

¯

(

λ), and z¯

(

λ)

Within 6% (f

i

') of the CIE spectral luminous efficency V(λ)

Cosine response (f

2

)

Ev

: Within 3%

Receptor

Silicon photocell

Measuring 
function

Tristimulus values: XYZ

Chromaticity: E

v

xy; E

v

u'v'; E

v

, Dominant wavelength, Excitation purity

Correlated color temperature: E

vTcp

uv; T

cp

(JIS method; available only with 

CL-S10w)

Color difference: 

(XYZ), 

(Ev

xy), 

(Ev

u'v'), 

Ev

u'v'(Target: 1)

Other function

User calibration function, 

Data hold function

, 

Multi-point measurement 

 

(2 to 30 points)

Measuring range

0.1 to 99,990 lx, 0.01 to 9,999 fcd (Chromaticity: 5 lx, 0.5 fcd or above) in 

four automatically selected ranges (lx or fcd is switchable)

Accuracy*

E

v (Linearity): ±2%±1digit of displayed value

xy: ±0.002

Repeatability*

Ev

: 0.5%+1digit (2σ), 

xy: ±0.0005

Temperature drift

Ev

: ±3% ±1digit of displayed value, xy: ±0.003 

Humidity drift

Ev

: ±3% ±1digit of displayed value, xy: ±0.003

Response time

0.5 sec. (continuous measurement)

Computer interface

USB 

Printer output

RS-232C

Display

4-significant-digit LCD with back-light illumination

Operating temperature/ 
humidity range

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

Storage temperature 

/ humidity range

-20 to 55˚C, relative humidity 85% or less (at 35˚C) with no condensation

Power source

2 AA-size batteries / AC adapter AC-308  (optional; for 1 to 10 receptors) or

 

AC adapter AC-311  (optional; for 1 to 30 receptors)

Battery life 

72 hours or longer (When alkaline batteries are used) in continuous 

measurement

Dimensions

69×174×35 mm (2-6/16×6-14/16×1-7/13in.)

Weight

215 g (7.6 oz.) not including batteries

*

 800 lx, Standard Illuminant A measured

Measured color temperature

Color-temperature difference from 

standard-instrument measured value

Our company's standard instrument

5045

0

CL-200A

5011

-34

Photographic color meter

5600

555

When measuring light sources with non-continuous spectrums such as LEDs, etc., accurate illumination color temperature is 

particularly required. The CL-200A can measure color temperature accurately.

The CL-200A has sensors that closely match the color-matching functions defined by the CIE (International Commission on 

Illumination), enabling precise color measurement. The measurement results can be displayed in various color notations such 

as "Correlated color temperature and  uv" according to the application.

In order to take more beautiful pictures, it is sometimes necessary to attach filters in front of the camera lens to compensate for 

the color of the light illuminating the subject. A photographic color meter is a meter used to select the appropriate filters, with the 

sensitivity of its sensors adjusted to match that of the film or digital camera sensor. In addition, because it uses photographic 

color temperature, which is calculated based mostly on the blue/red balance of the illumination, large errors may occur if it is 

used to measure light sources with non-continuous spectrums. 

When an ideal blackbody* is heated, it begins to emit light, and as the temperature increases the color of the emitted light 

changes from red to yellow to white. Since the color of the emitted light is determined by the temperature of the blackbody, the 

color of the light emitted by the blackbody can be expressed as the absolute temperature of the blackbody (in Kelvin). This color 

notation scale is called "color temperature". For example, a 7000 K color would be the color of the light emitted by a blackbody 

heated to 7000 K. Figure 1 shows the color of light emitted by a blackbody at various temperatures plotted on an xy chromaticity 

diagram. This curve is called the "blackbody locus"; "color temperature" expresses a color on this blackbody locus.

Since the color of white light emitted by illumination equipment and displays is generally close to the blackbody locus, the 

color of such light sources is normally expressed using "color temperature".

However, the color of such light sources is not directly on the blackbody locus. Because of this, a way to enable similar 

color expression for colors within a larger region close to the blackbody locus was devised. This is called "correlated color 

temperature", and the larger region is shown by the isotherms on the xy chromaticity diagram in Figure 2.

To accurately express the correlated 

color temperature of a light-source 

color, it is necessary to state not only 
the correlated color temperature but the 
difference from the blackbody locus, 
normally in terms of 

uv.

*Blackbody
An ideal radiator. A body which completely absorbs all 
incident electromagnetic radiation. Although a perfect 
blackbody does not actually exist, coal is a familiar 
object that acts similarly.

Reference plane

Center of receptor
window

Tripod socket

7.5

7.5

（

71.8

）

30

（

5

6.

3

）

（

4

6.

3

）

φ

4.5

hole

φ

4

5.

2

50

35

69

30

35

27.5

1

74

φ

25

φ

4

5.

2

5

6.

3

18

13

25

Reference plane

Center of receptor
window

Tripod socket

7.5

7.5

（

71.8

）

30

（

5

6.

3

）

（

4

6.

3

）

φ

4.5

hole

φ

4

5.

2

50

35

69

30

35

27.5

1

74

φ

25

φ

4

5.

2

5

6.

3

18

13

25

<Standard accessories>

*Not included as standard accessory in some areas.

<Optional accessories>

AA Battery (2pcs.)*

Strap

Case T-A10

Cap T-A13

PC
(commercially
                 available)

RS-232C printer
(commercially available)

Data Management Software
CL-S10w

Processing by computer

Printing out data

USB Cable
T-A15 (2m)

Printer Cable
T-A12 (2m)

AC Adapter

External Power

CL-200A*
Receptor Head

Hood CL-A11

Optional receptor head

For CRT 
Measurement

Adaptor Unit for 
Main Body
T-A20

Adapter Unit for 

Receptor Head

With LAN category-5 cable 1m

For multi-point measurement / detached head

LAN(10BASE-T ) 
category-5 straight cable
              (commercially 
               available)

Multi-point measurement requires use of optional AC adapter.

Hard Case
CL-A10

*CL-200 

Receptor 
Head can 
also be used.

Ex.: Multi-point 

measurement

Ex.: Head and body 

connected via 
cable

0.50

0.40

0.45

0.35

0.30

0.25

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

50000

＋

0.02uv

＋

0.01uv

0.00uv

­0.01uv

­0.02uv

30000

20000

15000

13000

10000

9000

8000

7000

6000

5000

4500

4000

3500

3000

2500

y

0.90

0.80

0.70

0.60

0.50

0.40

0.30

0.20

0.10

0.00

0.10 0.20 0.30 0.40 0.50 0.60 0.70

x

520

530

540

550

560

570

590

600

610

620

650

680∼780

510

500

490

480

470

460

450

380∼440

2000

2500

3000

3500

4000

4500

10000

* *

*

*

*

*

B

C

A

D55

D65

D75

580

1500

Figure 1: Blackbody locus on xy chromaticity diagram

Figure 2: Closeup of blackbody locus on xy chromaticity 

diagram showing correlated color temperature region

Type

Add-in for Excel

®

  * Excel is required to use this add-in.

Operating
environment

One of the following environments with Excel

®

 

installed:

Windows

®

 XP   + Excel

®

 2003 (English, Japanese, or 

Simplified Chinese)

Windows

®

 7   + 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.

  *  Languages in parenthesis (    ) are the OS language.

  *  Not compatible with 64-bit versions of Office 2010.

Compatible  
instruments

CL-200A

, 

CL-200*  

* Some functions not usable with CL-200.

With receptor head attached to main body

With adapter unit attached to receptor head

Chroma Meter CL-200A

Chroma Meter CL-200A