Temperature measurement best practices
This article integrates six online articles on overcoming temperature measurement installation challenges, improving accuracy and reliability of temperature diagnostics, choosing the right temperature sensors, connecting sensors to control room, and understanding thermowell characteristics.
When you need a temperature measurement, one of the most basic decisions is choosing which kind of sensor to deploy. The application should guide your decision.
It stands between your process and the sensor element, so understanding thermowell characteristics is key to reliable measurements. Once you understand the selection criteria, the mystery can be solved, resulting in the best performance of your temperature measurement system.
Temperature sensors, more than most other types of instrumentation, can require specialized cabling and treatment to provide accurate data. The design engineer must consider a number of technology, performance, and cost of ownership issues to make a proper decision.
The final result of your temperature measurement will depend on the interaction of all the devices and connections between the sensor and control system.
Your instrumentation may be trying to warn you of a developing problem. Usually this warning will give you time to prevent a production interruption, if you’re paying attention. Many modern process plants have turned to diagnostics as a way to identify issues before they become problems.
You have designed and purchased the optimal temperature measurement system to meet the performance requirements of your process. Your job is done, right? Wrong, because if it is not installed properly, the actual measurement results can fall far short of expectations.
To learn more about measuring temperature in process manufacturing applications, go to www.rosemount.com/tempguide and order a free copy of The Engineer’s Guide to Industrial Temperature Measurement.
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