Platinum rhodium thermocouple show unstable reason and solution

When platinum rhodium thermocouple display inside the furnace is not stable, what are the main reason? A, and compensation in poor contact between the wires; Second, the electrode between intermittent short circuit phenomenon; Three, and intermittent short circuit between electrode; Four, there seems broken off or electrode; Five, appear on the installation is not strong; Six, compensation conductor earthing, and staccato open circuits, etc. ; Seven, because of the compensating conductor and instrument of adverse on contact. Solve way is: 1. Inspection on compensation conductor on the connection, or the connection and fastening again; 2. The thermocouple to replace; 3. Directly to find out and the location of the intermittent open circuit, and completely eliminate it; 4. Or is the electrodes directly replace; 5. Strong and installation of thermocouple; 6. To find out the location of the compensating conductor grounding, open circuit and short circuit, and carries on the repair, or directly to the compensation conductor should be replaced; 7. The compensation wire to connect again.