On the use of online infrared monitors for carbon dioxide concentration (ABB)

2018-06-10View Original

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Our plant has an infrared online monitor for carbon dioxide concentration at the LNG decarbonization tower; the brand and model are ABB AO2040. Due to excessive drift in the readings over time, during my operations today I selected Maintenance/Test – Analyzer spec. adjustm – calibration reset, and then confirmed CAL RESET. It was only afterward that I realized that a calibration reset had been performed; after this reset, all values became 999999, and this remained the case no matter how many times I tried to calibrate it. I asked someone else, and they said it might be necessary to redo the linear adjustment. But I’m not very familiar with this process, and it’s my first time using this machine. How can I solve this problem?? Experts, please help~~~:'(

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On the use of online infrared monitors for carbon dioxide concentration (ABB)

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