Differential pressure transmitters and level transmitters
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Are these two the same thing? I’m not sure; it seems to me like they are the same.
A differential pressure transmitter used for level measurement can be called a level transmitter; it is the same device. When used for flow measurement, it is called a flow transmitter, and it is no longer the same device.
The level transmitter can be a differential pressure transmitter, using the formula H=P/ρ*9.81. The liquid level can then be indicated. The difference between the pressure before and after the filter is the differential pressure. It then ceases to function as a level transmitter. There are level transmitters with magnetic flip plates; these have nothing to do with differential pressure transmitters.
Thank you for the explanation. In our 52 system, some accessories come with differential pressure transmitters while others come with level transmitters, which is a bit confusing. I searched on Baidu and found designs that look very similar, but the level transmitters have an extra long cable connected to them. I understand now.
Thank you for the answer. In other words, since it indicates differential pressure, it can be called a differential pressure transmitter; but it can also convert that value into a liquid level measurement, so it can also be regarded as a liquid level transmitter. Then there’s also another type of level transmitter that has nothing to do with differential pressure, right?
Differential pressure is a measurement principle, while liquid level is what you want to measure. And the transmitter is a transmitter.
The liquid level can be measured using a differential pressure transmitter, or by other methods such as a float; one relates to the measurement principle while the other relates to the functional aspect
It’s different; differential pressure transmitters can be used for level measurement under appropriate operating conditions； In addition to differential pressure measurement, level transmitters also utilize other measurement methods such as static pressure, float-type, and radar-based approaches. Please don’t blame me for being pedantic: L