The lightweight and compact Konica Minolta illuminance spectrophotometer CL-500A is engineered to evaluate various light sources like LEDs, OLEDs, and EL illumination. With its standalone design and advanced sensors, it effortlessly measures critical parameters, such as illuminance, color temperature, Color Rendering Index (CRI), chromaticity, spectral power distribution, and more, in both indoor and outdoor settings.

Illuminance Spectrophotometer CL-500A

The Konica Minolta Illuminance Spectrophotometer CL-500A is a lightweight, compact light meter designed for illuminance measurements and the spectral evaluation of various light sources, including OLEDs, LEDs, and EL illumination.

Beyond a simple light meter, the Illuminance Spectrophotometer CL-500A provides various light measurement functions. These include illuminance, color temperature, Color Rendering Index (CRI), chromaticity, and spectral power distribution. Moreover, it presents the S/P ratio of scotopic and photopic illuminance for thorough assessment.

The Illuminance Spectrophotometer CL-500A comes with the CL-S10w, an easy-to-use Excel add-in software for comprehensive functionality, including a spectral irradiance waveform display, MacAdam’s SDCM (Standard Deviation) level display, and LED binning function. Plus, a total of up to 10 CL-500A units can be connected using the CL-S10w software, allowing for multi-point measurement management.

The Illuminance Spectrophotometer CL-500A ensures precise and reliable measurements with its conformity to JIS AA classification and DIN Class B standards. It is ideal for a wide variety of lighting applications, including but not limited to:
• Evaluation of indoor and outdoor lighting such as LED, organic EL (OLED), and fluorescent lights.
• Measurement of special lighting used in broadcasting stations, studios, stages, events, etc.
• Illuminance and color temperature measurement of projectors.
• Spectral waveform and photosynthetically active photon flux density (PPFD) measurement of light sources related to plant growth.

CL-500 Illuminance Spectrophotometer


Illuminance Spectrophotometer CL-500A

  • Ability to measure CRI! Also measures and displays spectral distribution graph and peak wavelength in addition to illuminance, chromaticity, and color temperature.
  • First compact, lightweight spectral irradiance meter in the world to conform to precise DIN and JIS standards. The CL-500A conforms to both DIN 5032 Part 7 Class-B and JIS C 1609-1:2006 General Class AA standards which ensure high accuracy illuminance measurements.
  • Portable & Lightweight – Weighs in at only 350g or about 12oz! A high speed processor and integrated LCD screen provides the CL-500A the ability to function as a stand-alone instrument. The CL-500A also has an internal memory of 100 data points that may be downloaded and evaluated more thoroughly at a later time.
  • Incudes Data Management Software CL-S10w – A convenient, easy to use Excel add-in software is included as a standard accessory for easy control of measurement procedures.
  • High-speed measurement – Using the Software Development Kit (SDK) you can obtain measurements as fast as 5 times/sec. Instrument is suitable for production application.

Illuminance Spectrophotometer CL-500A

Main Specifications of the CL-500A

Type NameIlluminance Spectrophotometer CL-500A
Illuminance meter classIlluminance 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
Wavelength range360 ~ 780 nm
Output wavelength spacing1 nm
Spectral bandwidthApprox. 10 nm (half bandwidth)
Wavelength accuracy±0.3 nm (Median wavelengths of 435.8 nm, 546.1 nm, and 585.3 nm*2 as specified in JIS Z 8724)*3
Measurement range0.1 to 100,000 lx (chromaticity display requires 5 lx or more)
Accuracy *4, 5(Standard illuminants A)Ev (Illuminance) : ±2%±1 digit of displayed value
xy: ±0.0015 (10 to 100,000 lx)
xy: ±0.002 (5 to 10 lx)
Repeatability (2σ)
(Standard illuminant A)
Ev: 0.5% + 1digit
XY: .0005 (500 ~ 100,000 lx)
XY: .001 (100 ~ 500 lx)
XY: .002 (30 ~ 100 lx)
XY: 0.004 (5 ~ 30 lx)
Visible-region relative spectral response characteristics (f1′)Within 1.5% of spectral luminous efficiency V (λ)
Cosine response (f2)Ev: Within 3%
Temperature drift (fT)Ev: ±3% of displayed value; xy: ±0.003
Humidity drift (fH)Ev: ±3% of displayed value; xy: ±0.003
Measurement timeSuper 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 accuracy) mode: Approx. 0.5 to 27 sec.
Display modesXYZ; X10Y10Z10; Evxy; Evu’v’; Ev; Dominant wavelength, Excitation purity; Correlated color temperature, Δuv; General color-rendering index (Ra); Special color-rendering indexes (Ri (i=1~15)); Spectral graph; Peak wavelength; Δ (XYZ); Δ (X10Y10Z10); Δ (Evxy); Δ (Evu’v’); Rank display
Other FeaturesData memory: 100 data; User calibration function (when connected to computer); Continuous measurement (when connected to computer); Auto off function
LanguageEnglish, Japanese, Chinese (Simplified)
PowerRechargeable internal lithium-ion battery (Operating time per charge: Approx. 6 hours when new); AC adapter; USB power bus
Operating temperature and humidity range-10 to 40°C, relative humidity of 85% or less (at 35°C) with no condensation
Storage temperature and humidity-10 to 45°C, relative humidity of 85% or less (at 35°C) with no condensation
Size70 × 165 × 83 mm
Weight350 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
*4 Automatic exposure time setting (high accuracy) mode
*5 Linear for Ev (Illuminance)

Main specifications of Data Management Software CL-S10w

TypeAdd-in for Excel®
(Excel® is required to use this add-in.)
Operating environmentOne of the following environments with Excel® installed: * Languages in parenthesis ( ) are the OS language. 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.
Compatible InstrumentsCL-500A, CL-200A, CL-200

All information provided herein, specifications and dimensions are subject to change without notice due to circumstances.

Illuminance Spectrophotometer CL-500A

Catalog Download: Download PDF (2.5MB)

Owner’s Manual: Download PDF (467KB)

Illuminance Spectrophotometer CL-500A

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