Selection of PT100 thermoresistors
Thread Content
Regarding the selection of PT100 thermistors, how should the length of the measuring element be determined? It depends on the diameter of the pipeline being measured – how is this calculated? For example, if the diameter is 20 CM, what impact does resistance to vibration have on the measurement results? Those who know the answer please provide some guidance.
The main principle to follow is to locate the measurement point at half the diameter of the tube; vibrations have no impact on the measurements. However, to be safe, it’s better to choose a location where vibrations are relatively low
So if it’s a 20CM tube, would choosing a 10CM measurement section be sufficient? Thank you.
The end of the thermal resistor is located in the middle of the pipe, and the insertion length of the thermal resistor is equal to the radius of the pipe plus the length of the straight connector (or flange splice). Seismic resistance depends on the site conditions; if seismic resistance is required, an armored thermoresistor should be chosen.