message: what is the pros and cons of rtd,over thermocouple
Mail from MU
Read the pages in links below, that ought to clarify your doubts. Last edited February 16, 2007
Comparison of Thermistors, Thermocouples and RTD’s … Unlike RTD’s and thermistors thermocouples have plus and minus legs so polarity must be observed.
Comparision of Thermistors, Thermocouples and RTD’s
Thermocouple – No resistance lead wire problems, Fastest response; RTD – Most stable, accurate, Contamination resistant,; Thermistor – High output, fast, Point temperature sensing.
Watlow – Temperature Sensor Comparison Guide
Since thermocouples measure wide temperature ranges and are relatively rugged, they are very often used industrial and process applications where accuracy may be a less important factor.
RTD vs. Thermocouple comparison chart