Dwyer RTDs

Dwyer's resistive temperature devices (RTDs) are engineered to deliver the sort of temperature measurement stability that's needed in many process-industry applications. If a system designer or process engineer is going to trust a temperature reading in determining the accuracy and stability of a process, then that reading has to be reliable. RTDs aren't the only way to measure temperature, of course, but they have a number of virtues that make them suitable for many tasks.

First, there's accuracy. Dwyer's RTD temperature range specifications indicate that the accuracy of Dwyer's temperature readings will be within 0.5 degrees Celsius or 0.6 percent of full scale. Second, there's stability. Dwyer RTDs have a very low drift rate of 0.05 ohms or 0.12 percent of full scale per week. The meaning of "low drift" is simply that a technician or engineer measuring temperature can count on the RTD to deliver a reading with the same sort of integrity that a good-quality laboratory thermometer would have. Another way to think about this is that the Dwyer RTD is as good a temperature-sensing device as anything currently available in the industry.