DP type Flow TX -N2 line..flow problem

Is there any flow?

not sure ..so i open next to flow tx one drain valve & purged nitrogen but still result same ,,actually i have same doubt about flow is ongoing or not so i just open drain valve of main line of n2.

when i close both lp&hp isolation valve then i some little bit flow indication like 2.6,,,3.56,,,,,,but once i open both hp&lp and when close equiliser valve so once more flow 0.0000

What is the DP? Is the equalizing valve closed? If it's open, DP = 0, flow = 0.

Did this multivariable ever work properly or is this a commissioning issue?

> so i just open drain valve of main line of n2.

When you opened the main line drain valve, did Nitrogen flow at a high rate?
Did the multivariable transmitter recognize that high flow rate?

When you ask us about something pls write in detail....u didnt mention ur required flow.

Check-

1. Equilizer valve in manifold is open or close......close it.

2.Confirm that there is a flow in the line

3.If 1& 2 are ok. Check that whether parameters are set properly in the transmitters.

4.check that transmitter is able to measure ur required flow or not.In range.

5.If the transmitter displays massflow ..then concerned parameters to be set.without it it wont work.