The instrument incorporates streaming current technology to produce a measurement of electrokinetic charge (ionic & colloidal) using a sample obtained from various points in the process (Headbox, Coated Broke, Machine Chest, Tray Water, etc..).

The online charge analyzer sample is then titrated with a low molecular weight polymer of the opposite charge to bring the sample to a neutral charge. The amount of titrant consumed by the sample is used to quantify the level of charge (anionic or cationic) present in the furnish. The result, given as Online Charge Demand, can be used to effectively control the addition of cationic additives (starch, polymers, coagulants, etc..) in order to stabilize charge disturbances.

Reducing or even eliminating online charge variability stabilizes the wet end and helps optimize and reduce feed rates of expensive additives while also improving paper qualities.

Standard features include...
• Three (3) Process Points Sampling Thickstock Sampling (Up To 5%)
• Measures Charge and Charge Demand
• Optional pH and Conductivity Sensors
• Two Titrant Pumps, Two 8L Titrant Jugs
• Low Maintenance, Improved Reliability
• Web Access Controller w/ Web Pad
• Ethernet Connectivity
• Analog/Digital I/O’s
• Laboratory Charge Analyser and Online Charge Analyzer

Applications for the Online Charge Analyser include:
tissue, fine paper, speciality papers, coated papers , linerboard and newsprint.