CPPT-2

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For many industrial applications, CPPT-2, or Constant Phase Pressure Transmitter, is the tool of choice. Developed by Advanced Instruments and currently in its second generation, CPPT-2 has become one of the most popular tools for measuring changing and steady pressures in industrial processes, from low and vacuum to high pressure.The base of CPPT-2 application field is science of physical measurement and signal processing. The transmitter works by using a physical principle called "mechanical-force balance to electrical signal", meaning it takes force generated by a pressure or a vacuum and converts that force into an electrical signal. This signal is then sent to a computer where it is processed into pressure reading.The working principle of CPPT-2 is based on force balance instead of direct transmission of the signal. The pressure sense element (PSE) is connected to the input pressure, and this PSE generates a force that is proportional to the input pressure. The pressure sense element is balanced by an equal and opposing spring, meaning that the output force is equal to the spring force, minus the pressure determined by the PSE. This output force creates a tiny electrical signal that is the primary control signal for the CPPT-2 transmitter. In other words, CPPT-2 measures pressure by sensing the following differences: the force generated by the PSE (proportional to the input pressure) and the opposing force generated by the spring. This difference is then sent as an electrical signal and converted into a pressure reading.The output signal of the CPPT-2 is proportional to the pressure sense element\'s generated force and is processed and filtered to cancel out any external noise or vibration. This signal is then sent to the controller, where is amplified servo system is used to ensure accuracy of the output pressure reading.In addition, CPPT-2 also has the ability to measure a wide variety of pressure and vacuum conditions. It can be used to measure anything from low or vacuum pressure to high pressures. It can also be used with any type of pressure port, including threaded, sanitary, flanged and diaphragm seals.The accuracy of CPPT-2 is quite high, as it is able to provide a pressure reading that is within ±0.25% of the actual input pressure at full scale (FS) and within ±0.1% of the actual input pressure at any scale. The versatility of the instrument coupled with its accuracy makes it ideal for many industrial applications, since CPPT-2 is able to accurately measure pressure in a wide range of pressure applications.Overall, CPPT-2 is a highly accurate and versatile instrument that is used for a variety of industrial applications. Its working principle is based on force balance, whereby the force generated by the PSE is balanced by the opposing force generated by the spring. The output signal is then sent to the controller, where it is processed and filtered, then amplified servo system to ensure accuracy of the output pressure reading. In addition, CPPT-2 has the ability to measure a wide variety of pressure and vacuum conditions and is used with any type of pressure port, resulting in high accuracy readings.

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