Patent ID: 6128544
Filing Date: 2000-10-03
Classification: G01N

Abstract:
A process for monitoring and controlling a slave analyser and a manufacturing unit linked to said slave analyser, comprising the steps of:a) feeding standard samples having a known characteristic to a master analyser;b) generating master signals from said master analyser based on said known characteristic of said standard samples;c) feeding said standard samples to said slave analyser;d) generating slave signals from said slave analyser based on said known characteristic of said standard samples;e) generating a transfer algorithm relating said slave signals to said master signals, said transfer algorithm being defined by parameters;f) periodically repeating c) through e);g) monitoring over time an indicator selected from the group consisting of one of said parameters and a function of at least two of said parameters;h) identifying a cause of alteration of said indicator based on a cause/effect diagram; andi) checking said slave analyser and said manufacturing unit based on said cause of alteration of said indicator.