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Answer Posted / chandrakant sahu
Calibration is most important & heart of any process instrument. There are many definition for calibration i am also trying to describe it a calibration is a process where a known value is applied to the instrument which is under calibration from the master instrument at various step in suitable temp and environment. Repeat & reproductive of process and note down the output.If Output come as same the input of master instrument instrument is ok otherwise set the zero & span and repeat the process
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