Question { ADCO, 5700 }

Why the tapping connections are taking above for gas
service and below for liquid service?

Answer

In gas connection to avoid liquid traps in gas flow measurement, as liquid is more denser it will remain below hence gas tap connections are given above.
And in liquid to avoid gas traps in liquid flow measurement, as gas is less denser it will be in upper area of pipe, so tap are given at bottom.

Question { 7981 }

My flow transmitter range is 0-1000mmwc.DCS range is 0-
100m3/hr.What is correspond out put in terms of milliamps
if my flow is 65m3/hr

Answer

For 0 m3/hr- 4mA
for 100 m3/hr- 20mA
for 65 m3/hr- 14.4 mA