Thermal resistance, the phenomenon of the short circuit and open circuit and the way to solve

Under normal circumstances, we are in the process of using thermal resistance, are relatively smooth, but even so, sometimes will appear all sorts of undesirable failure phenomenon, common should be short circuit and open circuit, the circuit break is basic it is because the heat resistance of silk carefully, the following will understand, together with small make up thermal resistance in a solution of short circuit and open circuit.

when there is short circuit or open circuit, thermal resistance was actually easier to judge, you just need to use multimeter, switch to the multimeter directly to the x 1 Ω, and the thermal resistance measurement, if the measured resistance value is less than the R0, it represents is a short circuit phenomenon.

if the thermal resistance measurement indicator is displayed on the infinity, represents the thermal resistance is in a state of open circuit and short circuit than the cut-off is more easy to solve, as long as no heat resistance wire on the length and thickness of impact, and then find out 'the position of the short circuit, and completely dry, to strengthen the insulation.

but if thermal resistance is open circuit phenomenon, so at the time of processing, it must be carried out on the resistance of the filament length changes, and will cause serious impact to resistance, so the replacement of new resistance body yes, but you need to use the welding way of repair, welding after the efficacy of equipment to ensure the qualified.

and when thermal resistance on the display instrument of display value than the actual value is low, or is in a state of instability, it should be protecting tube internal appears smudgy, directly to the dirt can be cleaned up, but if there is negative, the said heat resistance on the wiring error, or a short circuit, is the correct wiring way, the short circuit for effective treatment.