Brothers, please help! It’s an emergency
Thread Content
The A+K balanced flow meter measures a flow differential pressure of 25 Kpa, with a range set at 0-200 T/h. The differential pressure transmitter outputs a current of 4-20 ma. What are the corresponding differential pressure values and current values when the flow rate is 80 T/h and 100 T/h? (Process)
The differential pressure is 4,625 kPa. Current: 10.4 12 mA.
Should it be square root of header or DCS square root?
Should it be square root of header or DCS square root? Flow rate is proportional to the square root of the differential pressure. The flow rate M = K√ΔP. If we take the square root in DCS, then 100/200 = √(ΔP/25), which gives ΔP = 6.25 KPA. The output current for the header is (6.25/25)*16+4=8mA. If the header is squared, for 100 T/h, the header outputs 12 mA.