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Particle size analyzer

Particle size analyzer
Particle size analyzer
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Product Code : WALLIS
Product Description

Key benefits

·         No electro-osmosis - Artifact free measurements

·         Improved LDE technology (LDE) - fficient, reliable and simple

·         Enhanced resolution - 10 times better than usual correlation technology

·         High-resolution measurement - Accurate and repeatable zeta potential analysis

·         Easy to use and intuitive graphical user interface (GUI) software - Turn key operation

·         New material for long life electrodes - Reduced maintenance and consumable; cost effective

·         Designed for standard disposable and quartz cuvette - Easy to fill; compatible with organic solvents and high-pH suspensions  

High performances for advanced applications

·         Functionalization study

·         Drug delivery optimization

·         Quality control in manufacturing process

·         Fundamental study of electrophoretic physics

·         Cosmetic and industrial emulsion stability study

·         Nanoparticle formulation and synthesis optimization

·         Advanced colloidal stability analysis and optimization

·         Ink pigment dispersion and aggregation characterization 


Zeta potential range

-500 mV to 500 mV

Mobility range

10-10 to 10-7 m2/V.s

Particle size (For zeta measurement)

1 nm up to 100 μm

Sample concentration

0.0001% to 10% w/% (solvent dependent)

Temperature control range inside the cell

10°C to 70°C +/-0,1°C (depending on cuvette cell material)

Cell options

Cuvette cell with optical quality windows compatible with organic solvents

Sample volume

Typically 750 μL (Hellma cell – 10 mm light path)

Maximum sample conductivity

300 mS/cm

Sample Type

Aqueous & organic solvents – pH: 1-14 (depending on cuvette cell material)

Signal processing

Measurement technology

Laser Doppler Electrophoresis (LDE)

Laser source

Highly reliable 20 mW diode @635 nm coupled to automated optical attenuation system. Other wavelengths available upon request

Measurement angle

Single angle for zeta potential at 17°

Data processing algorithm

Fast Fourier Transform


Mobility = 10-10 m2/V.s or Zeta = 0,1 mV ( in water)


Avalanche Photodiode – APD


Computer interface

USB 2.0 – Windows XP, Seven


33 cm x 33 cm x 38 cm (HWD)


16 kg


100-115/220-240 VAC, 50/60 Hz, 100 W max

System Compliance

CE certification

CE marked product - Class I laser product, EN 60825-1:2001, CDRH

ISO norm

ISO 13099-2 : 2012 – Colloidal system – methods for zeta-potential determination – Part 2 : Optical methods


TechnoValue Academy:
TechnoValue Solutions Pvt. Ltd.
63, Panchvati Plaza, Sector-5,
Ghansoli, Navi Mumbai-400 701.
Tel. No. : +91 22 6561 2992

Calibration Facility:

TechnoValue Solutions Pvt. Ltd.
65-A, Panchvati Plaza, Sector-5,
Ghansoli, Navi Mumbai-400 701.
Tel. No. : +91 22 6561 2992

65-A, Panchvati Plaza, Sector-5, Ghansoli, Navi Mumbai - 400701, Maharashtra, India
Ms Shravani Misal (Sales Coordinator)

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