Pressure transmitter issues
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How can one check the properties of a pressure transmitter? For example, whether it is intelligent; what are the differences and characteristics between intelligent and non-intelligent transmitters? What is a transmitter, and how can one identify it as a sensor? I read in a book that it contains resistors and capacitors; how can one tell that? What are its structural and visual characteristics, and what are the features of its wiring? Also, is there any difference between the measurement versions that have high and low voltage testing capabilities and those that don’t? Which one is better?
Questions like yours are the hardest to answer... Resistive types are generally small in size, and most of them appear cylindrical when seen in person. Capacitive types are quite large in size; for example, the most common pressure transmitter, Rosemount’s 3051, – you can look up images of it on Baidu to see what it looks like. You can also search for images on Baidu to take a look and then you’ll know. It’s not a very vivid way of putting it, but that’s why questions like yours are the hardest to answer. Just by looking at the question, it’s clear that you’re not very familiar with either the principles or the actual situation, which makes it difficult for us to explain things. Please take a look at the answer from the expert above; it’s very illustrative, haha. I won’t go into detail about intelligent and non-intelligent ones. The one with high and low pressure sides is a differential pressure transmitter; so how can it be determined which one is better compared to pressure transmitters used for measuring pressure values? Their uses are different. Differential pressure is generally used to measure flow rate and liquid level. .........What are the characteristics of wiring? ,, This generally requires a two-wire system; just two wires, with no special features.