Portable spectrophotometer SP-A31

The Portable Spectrophotometer SP-A31 features 45/0 geometry (45 ring shaped illumination, 0 degree observation angle), providing precise measurement conditions. Its optical system incorporates a standard whiteboard to ensure exceptional accuracy in every measurement. Equipped with automatic gloss compensation technology, it guarantees the accuracy of color measurement data for surfaces with different gloss levels. With a large data storage space capable of storing up to 20000 samples measurement records, it offers extensive data management capabilities. Additionally, this spectrophotometer enables the measurement of the color of powders, granules, and other materials by adding powder accessories, enhancing its versatility for various applications.

Illumination45/0 (45 ring shaped illumination,0° observation angle)
RepeatabilityLight splitting reflectivity:standard deviation within 0.08% Color values: ΔE*ab<=0.03 (After calibration, standard deviation of 30 measurements on test white board, 5 second intervals) Maximum:0.05
SensorHigh sensitivity silicon photodiode
Test angle60°
Test area5 × 10 mm
Test range0 to 1000 GU
Test repeatability0.2 GU (0 to 100 GU), 0.2% (100 to 1000 GU)
Reproducibility1.0 GU (0 to 100 GU), 1.0% (100 to 1000 GU)
Inter instrument agreement0.2 ΔE*ab (BCRA II color tiles, average test value of 12 tiles)
Illumination light sourceLED
Light sourceA, C, D50, D55, D65, D75, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, CWF, NBF, TL83, TL184, NBF, U35
Wavelength range400 nm to 700 nm
Wavelength interval10 nm
Observation angle2°/10°
Measuring aperture11 mm
Color spaceCIE-L*a*b, L*C*h, L*u*v, XYZ, Yxy, Reflectance, Hunter-lab, Munsell MI, CMYK
Color difference formulaΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc(2:1), ΔE*cmc(1:1),ΔE*94, ΔE*00, ΔEab(Hunter), 555 shade sort
Other colorimetric indicesWI (whiteness) (ASTM E313-10,ASTM E313-73,CIE/ISO, AATCC, Hunter, Taube Berger, Ganz, Stensby) YI (yellowness) (ASTM D1925,ASTM E313-00,ASTM E313-73), Tint (ASTM E313,CIE,Ganz) Metamerism index Milm, Stick color fastness, Color fastness, ISO brightness, A density, T density, M density, E density.
Color matching systemNot included
UV light sourceNot included
Work temperature range0 to 45℃, relative humidity 80% or below( at 35°C ),no condensation
Battery capacityRechargeable Lithium battery, 20000 continuous measurement tests, 7.4V/600 mAh
Data storage20000 samples
DisplayTrue color TFT touch screen
Light source longevity10 years, 3 million test
Dimension181 × 73 × 112 mm
Weight800 g (without battery)

  • 2.8 inch TFT touch screen
  • Built-in camera for viewing measured area
  • High capacity rechargeable lithium-ion battery
  • CLED light source for measurement accuracy
  • SCS system for measurement repeatability
  • Simultaneous measurement of SCI & SCE
  • Equipped with gloss compensation technology
  • USB & Bluetooth data transmission
  • Customized for PANTONE color matching technology
  • Large storage capacity
  • Connection to mini printer for printing

Portable spectrophotometers find applications across various industries including textile, plastic, food, paint, printing, and automobile industries. They are also utilized in laboratories and on-site applications for quality control purposes.


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