The CM-2600d and CM-2500d are portable sphere type spectrophotometers with horizontal alignment, which is most convenient to measure the colour of flat or large samples. Both models using the patented numerical gloss control (NGC) which delivers measurement data’s including (SCI) and excluding (SCE) surface conditions in one measurement sequence.

Single handed operation is achieved with the “Navigation wheel” and the sample observation port allows perfect sample positioning. The large information display shows measurement data either as numerically or graphically. The CM-2600d offers additional 3mm measuring aperture to perfectly adapt to small sample sizes.

To analyze samples treated with optical brighteners (OBA’s), the CM-2600d uses the patented numerical UV control (NUVC) system for accurate and fast UV content adjustments – a unique feature in a portable instrument.


Model CM-2600d CM-2500d
Illumination / Viewing system d:8° (diffuse illumination, 8-degree viewing ), equipped with simultaneous measurement of SCI (di:8° specular component included) / SCE (de:8° specular component excluded) Conforms to CIE No.15,ISO 7724/1,ASTM E1164,DIN 5033 Teil7 and JIS Z8722 Condition C standard.
Sphere Size Ø 52 mm
Light-receiving element Silicon photodiode array (dual 40 elements)
Spectral separation device Diffraction grating
Wavelength range 360 nm to 740 nm
Wavelength pitch 10 nm
Half bandwidth Approx. 10 nm
Reflectance range 0 to 175%, resolution: 0.01%
Light source 3 pulsed xenon lamps 2 pulsed xenon lamps
Measurement time Approx. 1.5 seconds (approx. 2 seconds for fluorescent measurement) Approx. 1.5 seconds
Minim um interval between measurements 3 seconds for SCI/SCE (4 seconds for fluorescent measurement) 3 seconds for SCI/SCE
Battery perfomance Alkaline manganese:approx. 1000 measurements
Measurement/illumination area MAV : Ø 8 mm / Ø 11 mm
SAV : Ø 3mm / Ø 6 mm (Selectable between MAV and SAV)
MAV : Ø 8 mm / Ø 11 mm
Repeatability Spectral Reflectance:Standard deviation within 0.1% (360 to 380 nm within 0.2%)
Colorimetric Value : Standard deviation within ΔE*ab 0.04 (Measurement conditions:White calibration plate measured 30 times at 10-second intervals after white calibration was performed)
Inter instrument agreement withinΔE*ab 0.2 (MAV/SCI) Average for 12BCRA Series II color tiles compared to values measured with master body.
UV adjustment Instantaneous numerical adjustment (no mechanical adjustment required) With UV400nm cut filter No UV adjustment
Measurement mode Single measurement/automatic averaging of multiple measurements(auto mode: 3, 5, 8 times/manual mode)
Interface RS-232C standard
Observer condition CIE: 2° and 10° standard observer
Illuminant condition CIE: A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12 (simultaneous evaluation is possible using two light sources)
Display data Spectral value/graph, colorimetric value, color difference value/graph, PASS/FAIL result
Color space / colorimetric data L*a*b*, L*C*h, CMC (1:1), CMC (2:1), CIE94, Hunter Lab, Yxy, Munsell, XYZ, MI, WI (ASTM E313), YI (ASTM E313/ASTM D1925), ISO Brightness (ISO 2470), Density statusA /T, WI/Tint (CIE/Ganz), CIE00
Data memory 1700 sets of data (as SCI/SCE 1 data) * 700 sets of data in the “defined in COND.” mode.
* Total of the sample data for the COND and TASK modes and color diference target data
Tolerance judgment Tolerance for color difference (both box and eliptical tolerances can be set)
Power source 4 AA-size battery or AC adapter AC-A305
Dimensions (W × H × D) 69 × 96 × 193 mm
Weight Approx. 670 g (without batteries)
Operating temperature / humidity range (*1) 5 – 40°C, relative humidity 80% or less (at 35°C) with no condensation
Storage temperature/humidity range 0 – 45°C, relative humidity 80% or (at 35°C) with no condensation
Standard accessories White calibration plate, Target mask Ø 8 mm, Target mask Ø 3 mm , RS-232C cable, AC adapter,AA-size battery (×4)
Optional Accessories Hard case, Dust cover set, Dust cover, SpectraMagic™NX (software), Zero calibration box.

Specifications are subject to change without prior notice.