Field ESA
Zeta Analyser for Research, Quality Control, Production Optimization
Fast and easy characterization of
high concentrated and even viscous suspensions!
Accurate analysis and easy to use !
The Field ESA measures Zeta Potential directly, under true sample conditions, without dilution.
The instrument features a compact and portable design and versatile probes.
Field ESA can alternatively run without PC for data logging over a period of time up to 2 days with internal battery. This feature makes the system suitable also for use in industrial environment.
The Field ESA is based on the principle of the electroacoustic. An oscillating electric field is applied to a collection of fine particles in a dispersion. The field exerts a force on the particles which is proportional to the effective particle charges. When the particles move in one direction the displaced fluid moves in the opposite direction. If the particles have a density difference from that of the fluid there will be a net momentum transfer in the direction of the applied electric field. The momentum transfer at the electrode/ dispersion interface results in a sound wave which is then detected by an acoustic transducer behind the electrode. The generated sound wave is at the same frequency as the applied electric field. The measured amplitude of the sound wave is simply connected to the colloid particle mobility and hence to the zeta potential.
Features and Benefits
PA Partikel - Analytik - Messgeräte GmbH offers a wide range of services to support you taking maximum benefit from this powerful new measurement device. Field ESA can be used for plant optimization, QA/QC and research for major industrial and academic applications including:
- Measurements at concentrations from 1-60 vol%
- Applicable for coloured samples (pigments, CNT)
- Sample sedimentation is eliminated by pumping or stirring
- Measurements of small volumes possible
(in special cases down to 5 ml) - Simultaneous measurement of pH, conductivity and temperature
- Recalculation module for retroactive processing of measured raw data, even with high ionic concentration (up to 20 mS/cm)
- "Non - aqueous mode" for measurement of non-aqueous samples
- Surface potential measurement (for solid samples)
- Rapid cycle times (kinetic option 1s)
- Versatile and rugged dip in and flow through probes
PA Partikel - Analytik - Messgeräte GmbH offers a wide range of services to support your activities in achieving maximum benefit from this powerful measuring system. The Zeta Analyzer Field ESA is designed for production control, QA/QC and research for major industrial and academic applications including:
Ceramics, Food colloids, Filtration/de-watering, Paints and inks, Cement, Wet milling/grinding, Coal slurries, Mineral processing, Control of surface coating, Semiconductors, Clay minerals, Control of homogenization, Pigments, Paper coatings, Abrasives and polishing, Light phosphors, Catalysts and zeolites, Nano Dispersions.
Specifications
| Technology | Electrokinetic Sonic Amplitude |
| Parameters Measured | Zeta potential, Mobility, ESA, Conductivity, pH, Temperature |
Measurement Ranges
| Particle concentration | 0.5 to 60% volume or higher (depending on cell type) |
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| ESA | 0 - 30 mPa*m/V |
| Conductivity | 0 - 5 S/m |
| pH | 1 - 14 |
| Temperature range for Standard dip probe |
5 - 50 °C |
| Temperature range for High temperature dip probe |
to 90 °C |
| Measurement time per cycle | 1 s (Kinetic option) 7 s (PC-Mode) 10 s (autonomous Mode) |
Performance
| Particle size range | 0.5 nm - 30μm |
| Titration capabilities | potentiometric & volumetric |
| Titration modul | dual syringe pump; 0.1 μm resolution |
| Data logger | up to 22,000 data sets |
| Autonomous mode time with internal battery | up to 2 days (17,000 data sets) |
| Sample type | Aqueous and non aqueous suspensions, solid sample |
Further options:
We offer measuring cells: for viscous, sedimenting and solid samples
Minimum computer specifications:
Pentium III, Windows 2000, Microsoft Excel 2000 or higher