Answer / pankaj rathi

It is used in level measurement system . When a level transmitter is installed below the static head Pressure Point at a Tank then extra positive pressure will be sensed and that will be corrected by zero suppression kit.
When the level Transmitter is installed above the static Head Pressure Point at a Tank then a Negative Pressure will be sensed and that will be corrected by Zero Elevation KIt.

Answer / 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

We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.

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