WHAT IS A CALLIBRATION? WHAT IS MEEAN BY LOOP CHECKING
INCLUDES PRESURE, THERMOCOUPLE,TT,DT?
Answer Posted / goldknight3000
Calibration of an instrument is a comparison to a known
standard. Eg. if i need to calibrate a weighing scale, then
we need a known weight for comparison. A known standard
have to be certified by certfying body like NIST.
Loop check is a continuity test coming from/to field to
junction box and junction box to/from Control system.
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