S.A.Pishro co.

LUMiSizer® - The All-in-One Dispersion Analyser

The High-end Dispersion Analyser LUMiSizer® is your complete dispersion lab, all in one instrument. The quick characterization of any demixing phenomena, consolidation and the calculation of the velocity distribution in the centrifugal field as well as of particle size distribution make the LUMiSizer® the instrument of choice for research, development and QA/QC.

Applying the patented STEP®-Technology the instrument determines demixing processes of dilute or concentrated suspensions/emulsions for up to 12 different samples simultaneously. Even different sample cell types and physical references can be measured at the same time.

The stability testing can be accelerated by up to 4500x compared to traditional test tube tests.

Fast stability ranking and shelf-life determinations of undiluted dispersions in original concentration are done in minutes/hours instead of months/years. The multisample analytical centrifuge is ideally suited for characterization and optimization of dispersion properties. It quantifies particle- particle-interactions, the compessibility of particles, flocs, gels and the elastic behaviour of sediments. The concentration, viscosity, complexity and particle size of a wide range of dispersions are easily analyzed. Many applications in research and development as well as in industry benefit from the LUMiSizer®.

   STEP-Technology® – Allowing you to look at the whole sample.

Demixing phenomena, like sedimentation, flotation or consolidation are directly measured by the LUMiReader®, LUMiFuge® or LUMiSizer® due to the patented STEP-Technology.

This permits to obtain Space- and Time-resolved Extinction Profiles over the entire sample length of up to 12 different samples simultaneously. Parallel light (I0) illuminates the entire sample cell and the transmitted light I is detected by thousands of sensors arranged linearly across your whole sample from top to bottom with a microscale resolution. Transmission is converted into extinction by lg I/I0 and particle concentration may be calculated.

The unique STEP-Technology gives high flexibility to use different cells to match specific sample properties.

By means of the comprehensive database based PC-software SEPView the light intensity can be adjusted to the corresponding sample turbidity. Transmission profils are recorded as fast as each second or with time intervalls up to hours, displayed as a sequence on the screen.

Transmission date are automatically stored in a special designed database, together with all instrument settings and actual calibration data.

The speed of the centrifuge can be set at a constant value or programmed to change during the measurement in the range from 200 rpm to 4000 rpm. These rpm-values correspond to relative centrifugal forces (RCF) at the bottom of the cell of 5 to 2300 (RCF = centrifugal acceleration/earth gravity). Built-in temperature control covers all present and future applications.

Evaluation Features: The evolution of the transmission profiles contains the complete information on the kinetics of any concentration changes due to creaming, sedimentation, flocculation, coalescence or phase separation.

Based on these space- and time-resolved extinction profiles (STEP) demixing phenomena are quantified regarding clarification velocity, sedimentation and flotation velocity of particles, residual turbidity, separated phase volume (liquid or solid), sediment consolidation or dewaterability.

Furthermore, comprehensive infomation is obtained with respect to the multimodality or polydispersity of dispersed particles.

   SEPView® - Your window to dispersion analysis

SEPView® is a comprehensive database driven software solution. Whether you want to perform particle size measurements, stability analysis, determine creaming or sedimentation rates, predict shelf-life, examine flocculation and sedimentation consolidation, determine the degree of magnetization of your dispersed particles, or accurately calculate the particle density: with the help of SEPView you can do all this and more.

SEPView controls the instrument and provides functions for data management, visualisation, analysis and result documentation.

All information (calibration data, programmed measurement methods, comments, transmission profiles, settings etc) is stored in one database, no file management required.

Fast access to validation and measurement results and sample information is guaranteed. Comparison of sample data from different measurements is easily achieved.

Different program components are provided for the qualitative and quantitative analysis of the samples, e.g.
- for the clarification
- the Integral Transmission
- for settling, creaming & consolidation
- the Front Tracking
- the PSA-Module for the calculation of the particle size distribution.

The included animation tool displays the recorded measurement data with programmable playback parameters for easy recognition & identification of complex separation phenomena. Standard database functions like import & export of measurements and results, filtration of database content by various criteria, user and database administration are supported by SEPView.

The program supports different languages and different systems of units. The modular and object oriented design of the software provides easy extension and customizing opportunities on customer's request, i.e. for special R&D or QC tasks. SEPView complies to CFR 21 Part 11 for special R&D or QC tasks.

The modern measuring equipment made by LUM for comprehensive qualitative and quantitative characterization of dispersions is used in a large variety of different industrial and research facilities, dealing with innumerable materials.
To name few examples:
Bitumen
Petrol
Crude oil
Heavy fuel
Ceramic material

Cosmetics and Pharmaceutical products:

• Creams
• Hair care products
• Body care products
• Veterinary medicine
• Tooth paste

Food:

• Baby and infant food
• Dressings and sauces
• Functional food
• Beverages
• Ketchup
• Milk and milk products

Cosmetics and Pharmaceutical products:

• Creams
• Hair care products
• Body care products
• Veterinary medicine
• Tooth paste

Lubricants and coolants

Paints, Lacquers, Pigments and Inks:

• DIY- and industrial paints
• Automotive lacquers
• Printing inks
• Pigment dispersions

Polymers and Latices, Sludges, Slurries, Technical Dispersions