CRI Illuminance meter CL-70F used to measure light sources, including LED lighting and EL lighting
CRI Illuminance meter CL-70F with a rotating receptor head to improve screen visibility and comfortable use of the instrument
CRI Illuminance meter CL-70F Cost Effective solution for measuring light-source colour and illuminance
CRI Illuminance meter CL-70F compact, lightweight, and handheld instrument for measuring the colour and illuminance of light sources (including new LED and EL light sources)

CL-70F

An entry-level solution for measurement of Colour Rendering Index, spectral irradiance, peak wavelength, tristimulus values, chromaticity, correlated colour temperature, dominant wavelength, excitation purity, illuminance, and difference values.

  • CRI Illuminance Meter for measuring colour & illuminance of light sources
  • Wavelength range 380 – 780 nm
  • Data output: CRI, Tristimulus, dominant wavelength, excitation purity, correlated colour temperature
  • Conforms to DIN 5032 Part 7 Class C
CRI Illuminance meter CL-70F used to measure light sources, including LED lighting and EL lighting
CRI Illuminance meter CL-70F with a rotating receptor head to improve screen visibility and comfortable use of the instrument
CRI Illuminance meter CL-70F Cost Effective solution for measuring light-source colour and illuminance
CRI Illuminance meter CL-70F compact, lightweight, and handheld instrument for measuring the colour and illuminance of light sources (including new LED and EL light sources)

Cost Effective solution for measuring light-source colour and illuminance

The CRI Illuminance meter CL-70F is a compact, lightweight, handheld instrument for measuring the colour and illuminance of light sources (including new LED and EL light sources). Measurement data is displayed in terms of illuminance, chromaticity, CRI, tristimulus values, dominant wavelength, excitation purity, correlated colour temperature, and difference values from a target.

The CL-70F can be used with a commercially available flash sync cable to take spectral measurements of photographic flashlights.

The utility software CL-SU1w is included as standard and adds further functionality for capturing and analysing data.

 

Principal applications

  • Measurement and evaluation of special illumination sources used for restaurants, museums, studios, and stages, etc.
  • Measurement and evaluation of indoor light sources such as LEDs, fluorescent lamps, etc.
  • LED billboard development, quality control, and maintenance
  • Evaluating the illuminance distribution characteristics of LED modules or lighting fixtures
  • Building and interior lighting research
  • Spatial lighting production and adjustment
  • Colour-viewing cabinet maintenance
  • Projector light source research and colour inspection
  • Checking environments for psychological research experiments

Features

Features
  • Designed for in-field use: Portable instrument with rotating sensor head and touch screen for ease of operation. The head can be rotated so that the display has maximum visibility in any lighting conditions. The instrument is battery powered.
 
  • Entry level spectral sensor: Entry level access to CRI measurement data, peak wavelength, dominant wavelength, spectral curve. The instrument reports at 10nm which provides sufficient detail for most users.
 
  • Easy measurement of correlated colour temperature: data is measured for correlated colour temperature (Tcp) and difference from the blackbody locus (Δuv).


 

CL-70F CRI Illuminance Meter

Specifications & Downloads

Specifications & Downloads
Model

CRI Illuminance Meter CL-70F

Illuminance meter class Conforms to requirements for Class A of JIS C1609-1:2006 "Illuminance meters Part1: General measuring instruments; Conforms to DIN 5032 Part 7 Class C
Sensor CMOS linear image sensor
Spectral wavelength range 380 nm ~ 780 nm
Output wavelength pitch 1 nm
Measuring range Constant light: 1 to 200,000 lx; 1,563 to 100,000 K (Chromaticity display requires 5 lx or more)
Flash light: 20 to 20,500 lx・s; 2,500 to 100,000 K
Accuracy (Standard Illuminant A) *1 *2 EV: ±5%+1digit of displayed value
xy: 0.003 (at 800 lx)
Repeatability (2σ)
(Standard Illuminant A)
 
EV: 30 to 200,000 lx: 1%+1digit; 1 to 30 lx: 5%+1digit *3
xy: 500 to 200,000 lx: 0.001 *4
xy: 100 to 500 lx: 0.002 *4
xy: 30 to 100 lx: 0.004 *4
xy: 5 to 30 lx: 0.008 *4
Visible-region relative spectral response characteristics (f1’) Within 9%
Cosine response (f2) Within 6%
Temperature drift (fT) EV: ±5% ; xy: ±0.006
Humidity drift (fH) EV: ±3% ; xy: ±0.006
Power 2 AA-size batteries (Alkaline batteries or manganese dry cells); USB bus power
Response time Constant light (Maximum): 15 sec
Constant light (Minimum): 0.5 sec
Flash light: 1 ~ 1/500 sec (in 1-step intervals) *5
Color indication modes Correlated colour temperature Tcp, Difference from blackbody Δuv, XYZ, xy, u'v', Dominant wavelength λd, Excitation purity Pe, Spectral irradiance, EV, CRI (Ra, Ri), Peak wavelength λp, exposure value
Other functions Data memory: 999 data; Preset function; Auto power off function
Display languages English, Japanese, Chinese (Simplified)
Interface USB 2.0 Mini B
Operating temperature and humidity range -10 to 40℃, relative humidity of 85% or less (at 35℃) with no condensation
Storage temperature/humidity range -10 to 45℃, relative humidity of 85% or less (at 35℃) with no condensation
Size 73 (W)× 183 (H) × 27 (D) mm (Not including projecting buttons)

*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 Specifications are subject to change without prior notice.

CL-70F Illuminance Meter Catalog

Download

Software

Software

Software CL-SU1w

CL-SU1w Utility Software is the utility software included as a standard accessory with the CRI Illuminance Meter CL-70F, and offers numerical and graphical display and analysis of measurement data.

Upgrade procedure
CL-SU1w Utility Software can be updated by following the procedure in Section 7.6 "Update screen" on p. 35 of the Software Guide for "CL-70F Utility". Please refer to that procedure to perform the update.

  • Updating of CL-SU1w Utility Software can be performed only from within the software itself. No update file is offered for download from this site.

Accessories

Accessories

Standard accessories for Illuminance Meter CL-70F

  • Strap
  • Soft Case CL-A12
  • Utility Software CL-SU1w

Optional accessories for Illuminance Meter CL-70F

  • USB Cable T-A15

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