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This post was last edited by ren786199017 on 2017-8-30 at 13:08. The eja transmitter shows no pressure reading for SP, while the DCS displays normal pressure values. What could be the reason? Solve
I’m just asking gently: are you sure this is an original Yokogawa watch? It feels different from what I use. Have you run into Li Kui, or have I encountered a fake Li?:)
It seems the transmitter is producing an output; check whether the connector of the on-site gauge is loose
Are you measuring pressure or differential pressure? Does the table header show only this item, or are there any other contents? SP should be the pipeline pressure; it’s possible that the transmitter displays multiple variables, but what is sent to the system is a differential pressure signal
Are you sure you’re looking at the same point?
What does the DCS show? This should be the absolute pressure; check the range settings at both ends, and see if the DCS has performed any other logical operations. Why is the header displayed with only one decimal place?
Just change sp to p; it can be adjusted in the display settings. Our company also encountered this issue recently
This is Yokogawa’s EJA-E series; what you saw before were all EJA-A series models, and their appearance is very different from those!