In any type of system, any component can fail. When it comes to a pressure transmitter, and specifically a differential pressure transmitter, there are several different issues which may result in poor performance. With these system-critical components, choosing a Rosemount pressure transmitter as a replacement component is the easiest way to ensure a long life cycle and reliable performance.
In general, a differential pressure transmitter should be a component with a long life cycle. However, issues with wiring, electrical shorts, and problems with the pressure connection to the system can also result in problems. For some types of problems making adjustments to the wiring or installation may be all that is required, but for performance problems with the transmitter itself, upgrading to a new Rosemount pressure transmitter is the best option.
Electrical issues in a pressure transmitter tend to be an issue at the time of installation or when there are any electrical issues throughout the system. Some of the most common issues, including shorts or multiple grounds in the loop wiring, incorrect voltage, excessive loop impedance or issues with the quality of the wiring to the transmitter.
In some cases, particularly for working component, sudden loss of output in the transmitter can be a result of a leak in the pressure connection or the piping to the transmitter. Blocks in the system can also cause this problem, and this may be associated with changes in the density and the viscosity of the liquid.
Lack of Calibration
One of the benefits of upgrading to a Rosemount pressure transmitter is the full suite of diagnostic tools available. Not only can electrical issues be detected and identified, but issues with calibration can be determined by the system, making it easy to complete the required repairs or component replacements quickly and efficiently to reduce downtime.