CL-700A - Illuminance Spectrophotometer
Illuminance Spectrophotometer CL-700A
The Illuminance Spectrophotometer CL-700A combines Konica Minolta’s expertise in optical measurement with high performance to provide a reliable solution for evaluating light with accuracy and speed. Designed for users who require both spectral accuracy and practical operation, the CL-700A measures a wide range of optical properties, including illuminance, chromaticity, correlated color temperature (CCT), and spectral power distribution, as well as color quality metrics such as Color Rendering Index (CRI). This comprehensive capability supports applications ranging from basic brightness and color checks to detailed spectral analysis for quality control and research & development.
The CL-700A supports a wide illuminance measurement range from 0.01 lx to 200,000 lx, making it adaptable to many measurement applications. It delivers stable illuminance measurements from very low light levels to high-brightness conditions, enabling consistent evaluation of lighting performance in both dim and high-output settings. The spectral measurement range of this light measurement instrument extends from visible light into the near-infrared region, up to 1,000 nm, supporting modern lighting technologies and applications that go beyond the visible spectrum, including NIR LEDs and optical systems used in sensing workflows.
Measurement accuracy and speed are key design priorities of the CL-700A. Even under low illuminance conditions, the instrument delivers stable, repeatable results in a short measurement time—measuring down to 0.01 lx in approximately 5 seconds, with a Super FAST mode that enables measurements in as little as 0.3 seconds. This high-speed performance improves efficiency in laboratory testing and production environments, helping shorten evaluation cycles, reduce waiting time, and support higher throughput for quality assurance and development.
For applications that require evaluation of light distribution over a wider area, the CL-700A supports multi-point measurement configurations. Multiple units can be operated simultaneously to capture synchronized measurement data at different locations, allowing users to efficiently assess illuminance uniformity and spatial light distribution without repositioning the instrument multiple times.
Despite its advanced performance, the CL-700A features a compact and versatile design. It can be used as a handheld instrument or easily integrated into fixed measurement stations and automated production lines. Flexible connectivity options and the dedicated CL-S30 measurement software enhance usability by enabling intuitive operation, real-time data visualization, and efficient data management, supporting smooth integration into existing measurement workflows.
Illuminance Spectrophotometer CL-700A
| Illuminance meter class |
Complies with JIS C 1609-1:2006 Special type illuminance measuring instruments *1
Complies with DIN 5032-7:1985 classB *2 |
| Wavelength range | 360 to 1,000 nm |
| Output wavelength pitch | 1 nm |
| Spectral bandwidth | Approx. 10 nm (half bandwidth) |
| Wavelength precision *3 | ±0.3 nm (Centroid wavelengths of 435.8 nm, 546.1 nm, 696.5 nm, and 912.3 nm as specified in JIS Z 8724:2015) |
| Measuring range | 0.01 to 200,000 lx (chromaticity accuracy guaranteed range is 0.5 lx or more) |
| Accuracy *4 (Standard Illuminant A) |
Ev (Illuminance): ±2%±1 digit of displayed value
xy: ±0.0015 (5 to 200,000 lx) xy: ±0.003 (0.5 to 5 lx) |
| Repeatability (2σ) *4 (Standard Illuminant A) |
xy: 0.0005 (50 to 200,000 lx)
xy: 0.001 (10 to 50 lx) xy: 0.002 (5 to 10 lx) xy: 0.004 (0.5 to 5 lx) |
| V(λ) mismatch (f1‘) | Within 1.5% of spectral luminous efficiency V (λ) |
| Directional response (f2) | Ev: Within 3% |
| Temperature dependence (fT) |
Ev: ±3%
xy: ±0.003 |
| Humidity resistance (fH) |
Ev: ±3%
xy: ±0.003 |
| Measurement time *5 |
Super FAST mode: Within 0.3 seconds
FAST mode: Within 0.5 seconds NORMAL mode: Approximately 0.5 to 5 seconds |
| Measurement function |
X,Y,Z
Ev,x,y u’,v’ Tcp (Correlated color temperature), duv λd (Dominant wavelength), Pe (Excitation purity) Ra (General color-rendering index) Ri (i=1~15) (Special color-rendering indexes) TM-30-20 (when using CL-S30) *6 TLCI (when using CL-S30) *6 SDCM (when using CL-S30) *6 Ev’,S/P EML (Equivalent Melanopic Lux) PPFD Ee (Irradiance) (when using CL-S30) *6 Ee(λ) (Spectral irradiance) Spectral graph, Peak wavelength *6 |
| Other functions |
Automatic zero calibration/wavelength correction
User calibration data input/output *6 Averaged measurement Continuous measurement (when using CL-S30) *6 Multi-point measurement (up to 15 units) *6 Color matching functions: CIE 1931(2° Standard Observer), CIE1964(10° Standard Observer), CIE170-2(2°), CIE170-2(10°) |
| Display languages | English, Japanese, Simplified Chinese |
| Interface | USB 2.0, Ethernet |
| Power | USB bus power (when using USB), PoE (when using Ethernet, compliant with IEEE 802.3af) |
| Operation temperature / humidity range | 0 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 |
| Size (W × H × D) | 80 × 170.5 × 35 mm |
| Weight | Approx. 214 g |
• When Speed Mode is set to NORMAL mode, Range 7-10 do not comply with “5.5 Display characteristics (response time)”
• Temperatures below 0°C are outside the operation temperature range, non-compliant with “5.7 Temperature characteristics”
• No display, non-compliant with “6.3 Display”
(All other requirements are compliant.)
*2: Within an illuminance range of 1 lx or higher
*3: Based on Konica Minolta test standards (temperature change ≤2°C after zero calibration).
*4: NORMAL mode (at 23°C ±2°C, relative humidity ≤75%).
*5: The measurement time is the value under the following conditions:
• Time from measurement request from the operating terminal to completion of result reception from the measuring instrument
• When connected via USB
• Super FAST mode when Manual range setting is active
• When Buzzer Drive Mode is OFF
(Note: When 15 points are connected (via Ethernet), the measurement time is within measurement time shown + 1 second)
*6: CL-S30 can be used when connected. There are no communication commands to execute these functions
**Specifications subject to change without notice.
