Portable Spectrophotometer LSP-A31

Portable Spectrophotometer LSP-A31

Portable Spectrophotometer LSP-A31 is adopted with 45/0 geometry (45 ring shaped illumination, 0 degree observation angle), where the standard white board is included in the optical system for great accuracy of every measurement. Equipped with automatic gloss compensation technology ensures the accuracy of the color measurement data for the surface of different gloss. Large data storage space up to 20000 samples measurement records. The measurement of the color of the powder, granules and other materials can be done by adding the powder accessories to this spectrophotometer.





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
InterfaceUSB
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
  • Simultaneous gloss and color measurement
  • High capacity rechargeable lithium-ion battery
  • LED light source for measurement accuracy
  • Pre-locating panel design for instrument calibration
  • SCS system for measurement repeatability
  • Simultaneous measurement of SCI & SCE
  • USB & Bluetooth data transmission
  • Large storage capacity
  • Connection to mini printer for printing
Used in textile, plastic, food, paint, printing, automobile industries, laboratories & on-site applications for quality control purpose.
Accessories no. Accessories name Unit
1 AC adapter 1
2 Lithium battery 1
3 Color QC software 1
4 Driver software 1
5 USB cable 1
6 Calibration tile (black and white) 1
7 Carrying bag 1
8 Gloss calibration tile 1

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