Differential pressure flow measurement

P

Thread Starter

patrick

I am experiencing a situation with my differential pressure flow transmitter.

When both ports of the transmitter are opened to the atmosphere, I register zero differential pressure, but as soon as I connect the orifice whose both ends are sealed, I register pressure difference, which affects my flow measurement.

The range of measurement is 0 to 25KPa.
Could someone share some experience with me as to the possible cause?

pmensah at abosso. com
 
R
That's why you should have a 3 valve manifold so you can zero the transmitter at line pressure. This will reduce the zero error.

Roy
 
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