what is the zero elevation and zero supresstion in level
measurement, how can use it?

Answer Posted / deepan

zero elevation-means lrv(4ma) of the measurement is lower than
zero.ex- (-150 to 500 )mmwc

zero suppression -means lrv(4 ma) is greater than zero
ex-(150 to 500)mmwc
its used in level tx instalation

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