CRI ILLUMINANCE METER CL-70F
Portable, light weight and easy to carry meter for measuring illuminance and light source color
The CL-70F CRI Illuminance Meter is a cost effective portable illuminance meter with a spectral sensor and is an entry level solutions for measuring CRI (Color Rendering Index), spectral irradiance, illuminance, chromaticity, CCT (Correlated Color Temperature), DW (Dominant Wavelength) and Pe (Excitation Purity) of various light sources. The measure of color temperature is an important part of determining the correctness of a LED illumination. The CL-70F uses precision sensors coordinate with the International Commission of Illumination (CIE) define color matching functions.
The CL-70F can be used with commercially available flash sync cable to take spectral measurement of photographic flashlight.
The utility software CL-SU1w is included as standard and adds further functionality for capturing and analyzing data.
APPLICATIONS:
Measurement and evaluation of special illumination sources used for restaurant, museum, stages, studios etc. | Electroluminescence (EL) lighting | Building and interior lighting research | Projector light source research and color inspection | Color viewing cabinet maintenance | Evaluating light distribution characteristics of LED illumination module and etc.

CL-70F CRI Illuminance Meter
- Easy to use & easy-to-read display
- 180⁰ rotating receptor head
- Dark calibration can be performed without needing a cap
- Measurement of flashlights
- Measurement data of chromaticity, dominant wavelength & excitation purity
- Wide measuring range
- Conforms to JIS A Class and DIN Class C
- Includes utility software CL-SU1w
CL-70F CRI Illuminance Meter
Model | CL-70F CRI Illuminance Meter |
Illuminance meter class | Conforms to requirements for Class A of JIS C1609- |
Sensor | CMOS linear image sensor |
Spectral wavelength range | 380 to 780 nm |
Output wavelength pitch | 1 nm |
Measuring range | Constant light: 1 to 200,000 lx; 1,563 to 100,000 K |
Accuracy *1, 2 (Standard illuminants A) | Ev (Illuminance): +5%+1 digit of displayed value |
Repeatability (2 σ) (Standard illuminant A) | Ev: 30 to 200,000 lx: 1%+1digit; 1 to 30 lx: 5%+1digit (*3) |
Visible-region relative spectral response characteristics (f1′) | Within 9% |
Cosine response (f2) | Within 6% |
Temperature drift (fT) | Ev: +5% of displayed value; xy: +0.006 |
Humidity drift (fH) | Ev: +3% of displayed value; xy: +0.006 |
Power | 2 AA-size batteries (Alkaline batteries or manganese dry |
Response Time | Constant light (Maximum): 15 sec |
Color indication modes | Correlated color temperature Tcp, Difference from blackbody |
Other functions | Data memory: 999 data; Preset function; Auto power off |
Display languages | English, Japanese, Chinese (Simplified) |
Interface | USB 2.0 Mini B |
Operation temperature/humidity range | -10 to 40°C, relative humidity of 85% or less (at 35°C) with no condensation |
Storage temperature/humidity rangen | -10 to 45° C, relative humidity 85% or less (at 35° C) with no condensation |
Dimensions (W x H x D) | 73 x 183 x 27 mm (Not including projecting buttons) |
Weight | 230 g |
*1 Measurement mode: Constant light (range L), Exposure time: AUTO | |
*2 Linear for Ev | |
*3 10 times measurement (2σ) /Ave | |
*4 10 times measurement (2σ) | |
*5 Shutter speed |
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