In industrial automation control and many pressure measurement fields, the selection of high performance pressure transmitters is crucial, especially for different pressure measurement ranges, which require comprehensive consideration of many key points.
First, clarifying the measurement range is the basis for selection. For low pressure measurement ranges, such as the measurement range between 0 and 10 kPa, the sensitivity of the transmitter should be focused on. Low pressure changes are often subtle, so the transmitter needs to have a highly sensitive sensor element that can accurately capture small pressure fluctuations. For example, in some laboratory micro-pressure experimental environments or pressure monitoring of ventilation systems, the selected high performance pressure transmitter should be able to distinguish extremely small pressure differences to ensure the accuracy of the measured data. At the same time, its lower range limit should be as close to zero pressure as possible to avoid the deviation of the data caused by the measurement blind area.
Secondly, for medium pressure measurement ranges, such as 1 MPa to 10 MPa, stability and repeatability become key factors. In this pressure range, the pressure fluctuations in industrial production processes are relatively large and frequent. High performance pressure transmitters need to maintain stable performance during long-term operation, with minimal output signal fluctuations and extremely low repeatability errors. For example, in the pressure monitoring of hydraulic systems or industrial boilers, stable and reliable pressure measurement can ensure the safe and efficient operation of the system. At this time, brand products with mature manufacturing processes and good reputations should be given priority. Their internal pressure sensing structure and signal processing circuits are optimized to effectively cope with various working conditions under medium-pressure environments.
Furthermore, for high-pressure measurement ranges, such as more than 100 MPa, the pressure resistance and structural strength of the transmitter are the key points in selection. High-pressure environments place extremely stringent requirements on equipment. High-performance pressure transmitters must not only be able to accurately measure high-pressure values, but also their shell materials and sealing structures must be able to withstand huge pressures without leakage or damage. For example, in the pressure monitoring of high-pressure pipelines and high-pressure reactors in the petrochemical industry, the material of high-performance pressure transmitters may need to be made of high-strength special stainless steel, and the seals must also be made of materials that can adapt to high pressure and are resistant to chemical corrosion to ensure safe and stable operation under extreme high-pressure conditions.
Finally, no matter what the pressure measurement range is, the compatibility and scalability of high-performance pressure transmitters cannot be ignored. It needs to be seamlessly connected with existing control systems, data acquisition equipment, etc., and support multiple communication protocols to facilitate data transmission, processing and storage. At the same time, considering the possibility of future process upgrades or system expansions, a certain amount of expansion space should be reserved during selection, such as having upgradeable software functions or hardware interfaces that are compatible with higher-precision sensors, so that the high-performance pressure transmitter can maintain long-term applicability and advancement in application scenarios with different pressure measurement ranges.
