Platinum rhodium thermocouple temperature measurement when volatility?

Platinum rhodium thermocouple temperature measurement when volatility? R platinum-rhodium thermocouple temperature measurement in an oven, computer curve according to shake, the power curve moved too big, is how to return a responsibility? Issue is PLC ( The problem) And thermocouple Issue ( The problem) Or the stove heating field Issue ( The problem) ？

in fact, the common structural are triggered by trouble, platinum, rhodium thermocouple Howe v level is due to signal more easily be disturbed.

in the first place, inspection have shielded wire Issue ( The problem) Can have a large electric field around, shielding compensation conductor? Such as power line; Then test the shielding grounding, shielding should be grounded at one end, if on both ends of the ground will also introduce the trouble, so with PLC and platinum rhodium thermocouple at http://www. wuxiyibiao。 Com/itself should not too big relations.