Excuse me, what is the principle of the pressure transmitter of Lomonster as flow statistics?

做一天牛马打一天工

Excuse me, what is the principle of the pressure transmitter of Lomonster as flow statistics? [Copy link]

This is the connection diagram

I don't understand how it counts the flow. Why do you need those three valves? They are called balancing valves, right?

What role does the 3051tg4a differential pressure play?

Thanks

tagetage

Product Details

1. Product Overview:
Rosemount's 3051C pressure transmitter has created a new standard for pressure measurement technology. It has unparalleled operating performance, a flexible CoPlanarTM platform, and can be upgraded. The performance indicators of the new 3051C pressure transmitter ensure accuracy and stability under different working conditions.

Working principle: During operation, the isolation diaphragms and filling fluids on the high and low pressure sides transfer the process pressure to the filling fluid, and then the filling fluid transfers the pressure to the sensing diaphragm in the center of the sensor. The sensing diaphragm is a tensioned elastic element, and its displacement changes with the pressure (for GP gauge pressure transmitters, atmospheric pressure is applied to the low pressure side of the sensing diaphragm). AP absolute pressure transmitters always maintain a reference pressure on the low pressure side. The maximum displacement of the sensing diaphragm is 0.004 inches (0.1 mm), and the displacement is proportional to the pressure. The capacitor plates on both sides check the position of the sensing diaphragm. The difference in capacitance between the sensing diaphragm and the capacitor plate is converted into a corresponding current, voltage or digital HART (Highway Addressable Remote Transmitter Data Highway) output signal.
Application of 3051 transmitter
The performance indicators of the new 3051C ensure accuracy and stability under different working conditions. The flexible and variable CoPlanarTM platform design not only provides the best solution for your current application needs, but also fully meets your future technical requirements through PlantWeb factory control network and fieldbus technology.

zhoupxa

The working principle of the differential pressure flowmeter is derived from fluid mechanics. There is a certain mathematical relationship between flow and pressure difference. The three valves are to facilitate the installation and debugging of the pressure transmitter.

秦天qintian0303

That is not called three valves, it is just a three-way valve, one is placed on the bed and the other two are connected to the flow.

秦天qintian0303

The relationship between flow rate and pressure is purely in a certain way, which requires the knowledge of dynamics.

dwwzl

Different flow rates lead to different differential pressures, and it is difficult to linearize nonlinearity.

qwqwqw2088

The operating principle is based on differential pressure sensing technology.

By measuring this differential pressure, 3051TG4A can convert the flow information of the fluid into a transmittable electrical signal for use by secondary instruments or control systems.