Title: Process control system for the automatic analysis and regeneration of galvanic baths

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Abstract: A process control system for metal depositing baths for monitoring the chemical composition of a bath liquid provides that, in the event of a deviation of a component of the bath liquid from a reference value, the bath liquid is regenerated by supplying correcting liquid to the bath. The system includes an automatically operating analyzer which is connected to a measured value adjusting device which, in dependence upon the difference established between a reference value and an actual value of the bath liquid component subject to analysis, controls the supply of the correcting liquid to the bath. A common process control system for a plurality of galvanic baths includes a main programmer, a bath selection programmer and analysis programmers which can be selectively connected by the selection programmer, and which in accordance with the individual components of the bath liquid which is to be analyzed, actuate specific analyzer sections of the analyzer where each measured value adjusting device which is connected to an analyzer section will, in the case of a difference in measured value, control the supply of the correct quantity of the specific correcting liquid to the particular bath which is subject to analysis.


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