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Micrometrix - Model PCA -Particle Charge Analyzer
The Particle Charge Analyzer is a portable lab instrument that is used to determine optimum chemical dosage in water, wastewater and industrial processes. The analyzer can also be used for quality control of chemicals. The digital display indicates the polarity and charge (streaming current value) of the sample. The charge demand and optimum dose can be quickly determined with a simple titration.
- Establish Chemical Dosage
- Assess performance of Additives
- Optimize Process Performance
- Quality Control
- Reduce Chemical Costs
- paper Industry
- Chemical Industry
- Water Wastewater
- Pharmaceuticals
- Beverage Industry
- Ceramics
- Pigments
The Streaming Current cell (SC cell) determines the charge of the sample and the end point of the titration. The measurement cell consists of a precision bore cylinder closed at the bottom end and containing two electrodes, one at the bottom, and an upper electrode. The electrodes are connected to the contacts extending from the lower front portion of the instrument housing. The measurement cell is designed as a container to allow sample to be poured in from the top. The typical sample volume is 100ml. A precision piston oscillates up and down in the cylinder with a frequency of approximately 4hz. Polyelectrolyte (polymer) or coagulants are used as titrants to determine the charge demand of the sample. Colloidal particle are temporarily attached to the piston and cylinder walls. The mobile counterions of the fixed electrolyte move through the liquid stream creating an electric current due to the partial charge distribution measured between the two electrodes. This streaming current is measured by the electronics in the main unit.