LA-3A Portable Spectrophotometer Color Difference Detector Colorimeter with UV SCI/SCE BLE
The LA-3A colorimeter is a compact and lightweight portable colorimeter. The 45/0 geometrical optical structure is consistent with the visual perception color value Z, which can exclude the specular light on the textured surface, and is suitable for the measurement of the brightness factor and chromaticity coordinates of traffic signs, markings, and reflective films.
LA-3A colorimeter technical parameters
Colorimetric optical structure 45/0 (45° ring illumination, 0° viewing angle)
Diameter 11mm
Wavelength 400-700nm
Spacing 10nm
Sensor High sensitivity silicon photodiode
Lighting source LED
Repeatability Spectral reflectance: standard deviation within 0.08%
ΔE*ab 0.03 (after calibration, measure the standard deviation of the white board 30 times with an interval of 5s), the maximum
value is 0.05
Inter-stage difference 0.2ΔE* (average measured on 12 BCRA II boards)
Standard observer 2°; 10°
Observation light source A, C, D50, D55, D65, D75, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, CWF, U30.DLF,NBF,TL83,TL84. U35
Color Space CIE-L*a*b, L*C*h, L*u*v, XYZ, Yxy, Reflectance, Hunter-lab, Munsell MI, CMYK
Chromaticity index WI (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC, Hunter, Taube Berger Stensby),
YI(ASTM D1925,ASTM E313-00,ASTM E313-73),
Tint (ASTM E313, CIE, Ganz),
Metamerism Index Milm,
Color fastness, color fastness, ISO brightness, A density, T density, M density, E density
Color difference formula ΔE*ab,ΔE*CH,ΔE*uv,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*94,ΔE*00,ΔEab(Hunter),555 hue classification
Memory 20000
Display 2.8 inch full color true color screen
Battery Rechargeable, continuous measurement 20000 times, 7.4V/6000mAh
Operating temperature 0-45°C, relative humidity 80% or lower (at 35°C), no condensation
Size 181*73*112mm(L*W*H)
Weight about 800g (without battery)
Diameter | 11mm |
Wavelength | 400-700nm |
Spacing | 10nm |
Inter-stage difference | 0.2ΔE* (average measured on 12 BCRA II boards) |
Standard observer | 2°; 10° |
Memory | 20000 |
Size | 181*73*112mm(L*W*H) |
Weight | 800g (without battery) |
Colorimetric optical structure | 45/0 (45° ring illumination, 0° viewing angle) |
standard | ASTM E313-00, ASTM E313-73 |