Just arrange the transmitters in rows?
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When a differential pressure transmitter loses accuracy, the instrument will adjust the transmitter’s indication on-site and it becomes accurate again – is this caused by medium condensation? If that’s the case, can price-based heat tracing solve the problem?
Hehe, a differential pressure transmitter for measuring steam still needs condensate. What you have here is normal waste discharge, as there are dirty substances in the pressure guide tube; removing them keeps the pressure flow unobstructed.
In some cases, it’s the guide who gets choked; other times it’s due to waste discharge – it’s not necessarily the case
If it is confirmed that the tube blockage is caused by condensate, the issue of condensate backflow should be considered, and it is necessary to determine whether there were defects in the design of the instrumentation pipelines previously. Non-toxic and harmless liquids, such as condensate water, can be discharged regularly if returning it is not feasible; however, this is not safe.
This issue has also been bothering me; for orifice plate differential pressure flow meters, there is no condensation tank, and the pressure is taken directly. The pressure measurement pipeline is just quite long, about two meters long, nothing more or less. No obvious impurities were detected during the drainage process, but it was still necessary to drain it once; after that, everything returned to normal, and the flow rate gradually decreased (this needs to be confirmed – I’m not sure whether it decreases gradually or suddenly at a certain point). It’s possible that drainage will be needed again at some point... Once it’s done, the flow rate returns to its normal level. I’m already *used to it now; as soon as I see its traffic decrease, I go and sort it out, and it’s done! Why is this? Please ask an expert for help!
The differential pressure transmitter just needs to have its dirt removed; this indicates that there is a blockage in the pipeline.....
Your flow meter is installed in a split configuration, with a 2-meter-long pressure transfer pipeline. This installation method places high demands on the pressure guiding tube. For example, the bending angle of the pressure intake pipe should be large; there should be no bends with an angle of 90 degrees or less. Also, the final position of the pressure tap and the transmitter, as well as height, all have an impact. I suggest you make changes to the pressure sensing pipeline; it’s likely that the design of this pipeline is improper, which results in uneven liquid levels at the end of the pipe closest to the transmitter. This leads to inaccurate measurements. If you drain the pipe and clear it out, things will work fine again, but after some time it will break down once more. I have encountered such problems on site.