For many temperature applications, getting a high level of accuracy is vital. A white paper from Moore Industries highlights how plant and site engineers can ensure the most accurate temperature measurement for critical applications. Available for download from the Moore Industries website, “A Practical Guide to Improving Temperature Measurement Accuracy” details steps that can also help end users improve the stability of their measurements and reduce calibration costs.
“A Practical Guide to Improving Temperature Measurement Accuracy” shows how to select the best sensor for a particular application and ways to improve the accuracy of the sensor you choose. In particular, it details the reasons why 4-wire RTD sensors are almost always the best choice for high-accuracy temperature applications. Using 4-wire RTD sensors eliminates the errors caused by a copper lead wire. The paper also explains the relationship between classes of sensors (such as Standard and Premium Grade thermocouples and Class A RTDs) and their error rates.
Along with learning how to select sensors, the paper also covers how to reduce errors caused by plant noise, using bath calibration to minimize RTD measurement errors and the relationship between remote I/O and temperature accuracy.
The white paper is written by National Sales Manager Gary Prentice, who graduated with a degree in Electrical Engineering from Lafayette College in Pennsylvania and has 36 years of experience working in the process control industry. He has encountered almost every possible temperature application over his career and is the perfect person to explain the benefits of using 4-wire RTDs.
You can get watch a tutorial on this topic by viewing a Webinar that Gary did a few months ago, which gives even more specific examples of how to improve the accuracy of your temperature measurements.