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The working principle of the Rosemount 3051 SERS system is as follows: The Rosemount 3051S system utilizes two directly installed Rosemount 3051S pressure transmitters, rather than a single Rosemount differential pressure transmitter that uses capillaries. Of the two Rosemount transmitters, one calculates the differential pressure and transmits it back to the host system/DCS system using a standard two-wire 4-20 mA HART signal. The above is an overview of the working principle and process of the Rosemount 3051 SERS system. Traditional differential pressure level measurement technology has hit a bottleneck; the Rosemount ERS system represents a new breakthrough. Although the Rosemount double-flange differential pressure level system is a mature and reliable technology, it has long been difficult to apply it in tall vessels and towers. This has created a bottleneck in the use of traditional differential pressure level measurement techniques in new applications, and the Rosemount ERS system has brought about a new breakthrough to overcome this bottleneck. Speaking of the new advancements in the Rosemount ERS system, we should first introduce traditional differential pressure level measurement technology. The more common traditional differential pressure level measurement techniques include the following: Tuned-System adjusted system ； BalancedSystem balanced system ； WetLeg wet mechanism ； Wet/DryLeg wet/dry mechanism. So how do conventional differential pressure transmitters measure liquid level? Conventional differential pressure transmitters measure liquid level by detecting the pressure of the liquid in the container. For example, a water column of 500 millimeters corresponds to a pressure of 500 mmH2O. Compared to the new measurement technologies of the Rosemount ERS system, although traditional differential pressure transmitters have become more mature in terms of technology, they still have shortcomings in many applications. Although the Rosemount double-flange differential pressure level system, which has been in use for a long time, represents a mature and reliable technology, longer capillaries are required for easy installation; however, excessively long capillaries result in significant pressure transmission errors, and this issue becomes more pronounced when environmental temperatures change greatly. Therefore, it has always been difficult to apply it in high-type containers and towers. Because there is an additional vapor pressure above the liquid during measurement, and since this vapor pressure is not part of the liquid level measurement, it is necessary to use a pressure transducer and a capillary tube with seals to counteract its effect. However, the capillary column and sealing system resolve many installation problems of the pressure lead tube. Oil-filled capillary systems are carefully welded and manufactured, making them a reliable sealing system. These systems include an external sensing diaphragm connected to a differential pressure transmitter via an oil-filled capillary column. Changes in pressure cause the diaphragm to move, thereby transmitting the pressure to the transmitter through the oil-filled capillary. This type of structure eliminates potential leakage points and blockages that could occur in the pressure lead tubes. Therefore, the measurement gap between traditional differential pressure level measurement technology and the technology used in the new Rosemount ERS system is quite significant. To address the technical limitations of traditional differential pressure level measurement techniques, the Rosemount ERS electronic remote transmission system has brought about a revolutionary upgrade to this technology. This system is the first digital differential pressure level system in the industry; the Rosemount 3051SERS™ system, which holds ten patents, represents a breakthrough technology. Rosemount Electronic Remote Sensing technology replaces mechanical capillaries with two Rosemount 3051S pressure sensors connected digitally together. Differential pressure is calculated using one of the two sensors, and it is transmitted via a standard two-wire 4-20mA HART signal, which makes it possible to use pressure level instruments in tall vessels and distillation towers. The new advancements in the Rosemount ERS system represent a new technological revolution; it is hoped that this revolution will bring greater benefits to industrial production and foster further development in advanced scientific and technological fields.