Thermal resistance thermometer
The common faults of industrial thermal resistance are open circuit and short circuit of industrial thermal resistance. Generally open circuit is more common, this is because the thermal resistance wire is thinner.
Open circuit and short circuit are easy to judge. You can use the "1Ω" file of the multimeter. If the measured resistance value is less than R0, there may be a short circuit; if the multimeter indicates infinity, it can be determined that the resistor body is open circuit. The short circuit of the resistor body is generally easier to handle, as long as the length and thickness of the resistance wire are not affected, find the short circuit and dry it to strengthen the insulation. To repair the open circuit of the resistor body, it is necessary to change the length of the resistance wire to affect the resistance value. For this reason, it is better to replace the new resistor body. If welding is used for repair, it must be verified after welding before use.
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