Laser particle size analyzer LLPA-A11

Laser particle size analyzer LLPA-A11


Laser particle size analyzer LLPA-A11 is fully automatic and intelligent particle size analyzer. It uses dual beam and multi-spectral detection system and laser diffraction measurement principle for measuring over the 0.01 μm to 2000 μm particle size range for wet dispersion and offers reliable and repeatable particle size analysis.

Measuring range0.01 μm - 2000 μm
PrincipleLaser light scattering
Test speed< 2 min
Dispersion typeWet
Executive standardISO13320-1:1999
AnalysisMie & Fraunhofer scattering
Sample typeSuspension, emulsion, powders
Light sourceHigh performance He-Ne Laser, λ= 632.8 nm
Operation modeFully automatic/ manual control
Detector channels no.127 pcs.
Built-in ultrasonic functionFrequency: 40 kHz Power: 35 W Time: ≥ 1 s
Agitator Revolutions Speed0-300 rpm (Adjustable)
Circulate rated flow8 l/min
Circulate rated power10 W
Light path alignment systemFully automatic Precision up to 0.1μm
Accuracy< 1%
Repeatability< 1 %
Sample tank volume350 ml
Sample cuvette10 ml
Software runningWin XP/Win7
Outer dimension (L x W x H)1230 x 640 x 660 mm
Net weight58 kg
  • Converging fourier transform light path
  • Dual-beam and multi-spectral detection system and side-light scatter test technology improves precision and performance of test
  • Capable of measuring suspensions, emulsions and powders
  • Expanded measurement range to 0.01μm, making it suitable for small samples
  • Automatic optical bench alignment
  • Ultrasonic dispersion, mechanical stirring and circulation channel reasonably integrated in the interior of the instrument
  • Built-in dispersion system ensures uniform dispersion and distribution of particles in the testing process
  • Intelligent automatic mode of operation reduces the testing workload and also eliminate the interference of human factors
  • Requires calibration once in a year
  • Quick and simple calibration method
  • Unconstrained free fitting technique
  • User friendly
It finds wide application in cement industry, ceramics, environmental and soil applications, pharmaceutical industry. It is also used for measuring the particle size of food stuff as well as paints, pigments, coating, ink, toners, fillers etc.