Temperature measurement best practices

Overcome temperature measurement installation challenges, enhance accuracy and reliability of temperature diagnostics, choose the right temperature sensors, connect sensors to control room, and understand thermowell characteristics. This article integrates six online articles offering practical temperature measurement advice for better industrial process.

07/23/2014


Figure 6: High-end transmitters offer transient suppression options that can be integrally mounted within the housing Courtesy: Emerson Process ManagementThis 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.

Temperature sensors: Make the right choice, RTD vs. TC

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.

Taking the mystery out of thermowell selection

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.

The long and short of connecting sensors to control rooms

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.

Keys to achieving high accuracy and reliability in temperature measurement

The final result of your temperature measurement will depend on the interaction of all the devices and connections between the sensor and control system.

Temperature diagnostics help prevent unplanned shutdowns

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.

Overcome temperature measurement installation challenges with best practices

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.

www.emersonprocess.com 

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Gheorghe , , 08/14/14 12:03 PM:

Question: How is correct to make calibration:
(1)in situ by using the overall instrumentation used in operating conditions; or (2)taking out the T-sensor and placing it into a special device, but using the all instrumentation as in operating conditions; or
(3) as in (2) using a standard instrumentation.
hossein , AZ, Iran, 08/15/14 01:01 AM:

Can you explain physics of thermocouple?
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