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When it comes to pressure transmitters, many people will surely think of transmitters from well-known brands such as Rosemount, Yokogawa, e+h, Honeywell, and Siemens. Among them, the most well-known pressure transmitter is Rosemount’s 3051 pressure transmitter, which has a very wide range of applications. But if asked where pressure transmitters are usually installed to maximize their measurement capabilities, many people likely aren’t very clear about it. Today, the technical editor from Xi’an Pried Instrumentation would like to take this opportunity to explain to you where pressure transmitters are usually installed in the most suitable locations. First of all, we need to have an understanding of what pressure transmitters are. The pressure transmitter is assembled using high-precision, highly stable chips with imported stainless steel diaphragms. It features a precise structural design and appropriate temperature compensation, along with a linear processing circuit, V/I conversion functionality, and a fully sealed welding process for the stainless steel casing. The output signal is 4–20 mA; it features built-in temperature and pressure compensation as well as HART communication protocol. It is a device used for the accurate measurement of the pressure of gases, liquids, vapors, and corrosive media. Due to the requirements of the manufacturing process, as well as economic reasons such as the desire to save on material for pressure conduits, transmitters are often installed in locations with harsh operating conditions. To minimize the severity of these harsh conditions, transmitters should be placed in areas where there are minimal temperature gradients and changes, as well as no impacts or vibrations. Installation location analysis: The installation position of the pressure transmitter on the process pipeline is related to the medium being measured. The following factors should be taken into consideration during installation: 1. Try to avoid direct contact between the transmitter and the corrosive or overheated medium being measured. 2. Prevent slag from depositing inside the pressure guide tube. 3. The pressure guide tube should be as short as possible. 4. The liquid column pressures in the pressure guiding tubes on both sides should be kept balanced. 5. The pressure guide tube should be installed in areas with a low temperature gradient and minimal temperature fluctuations. When measuring liquid flow rate, the pressure tap should be located on the side of the process pipeline to prevent sedimentation of debris. At the same time, the transmitter should be installed next to or below the pressure tapping point, so that bubbles can be discharged into the process pipeline. When measuring gas flow rate, the pressure tap should be located at the top or side of the process pipeline. Furthermore, the transmitter should be installed beside or above the process pipeline, so that the accumulated liquid can easily flow into the process pipeline. The pressure chamber for application should be equipped with a transmitter featuring side discharge valves, and the pressure sampling port must be located on the side of the process pipeline. For example, when the medium under test is a liquid, the relief valve of the pressure transmitter should be installed on it in order to remove the gas that has seeped into the medium under test. When the medium being measured is a gas, the transmitter’s drain valve should be installed at the bottom to allow the accumulation of liquid to be discharged. Rotating the pressure chamber 180° moves the release valve on it to the bottom. The transmitter can be installed directly at the measurement point, on a wall, or clamped to a pipe using an installation plate (transmitter accessory).