This paper will address the application of Guided Wave Radar [GWR], also known as Time Domain Reflectometry [TDR], in your steam loop. Included will be discussions of how this technology functions and differs from more traditional forms of level indication. Real world applications will be discussed that highlight technology features, subsequent benefits and other relevant information.

Temperature is one of the most widely measured parameters in a power plant. Temperature is monitored and also used for control in some areas. The paper covers some of the basics of Temperature measurement, and leads into some of the technical advances that impart higher a degree of safety and reliability to power plant operation. These advances are based on some of the latest and innovative technologies that are being implemented in process instrumentation. Irrespective of the type of power plant (coal-fired, Oil or gas based), temperature measurement remains high on the list for operational excellence throughout the plant. Implementation of some of the new technologies results in improved Safety and lower installation and maintenance costs. Incorrect measurement information due to temperature effects, non linearity or stability can result in major equipment getting damaged. Ensuring instruments that have minimal downtime from a maintenance standpoint, not just devices that have been evaluated to provide Safety Integrity Level service in Safety Instrumented Systems, is crucial for daily operations in a power plant.

The purpose of this paper is to: facilitate the advantages of selecting ceramic pressure measuring cells in applications where plant operations and maintenance personnel may realize optimum process performance and stability through the use of ceramic pressure sensors. Identify and demonstrate the inherent problems of using metal diaphragm pressure cells particularly in vacuum and chemical service. Bring awareness of enhanced performance and stability in pressure measurement to plant maintenance, quality assurance and operations personnel in order to improve their operation and the bottom line.