- 26
- Dec
Reasons for failure of temperature control of muffle furnace
Reasons for failure of temperature control of four à moufle
1. The temperature meter is disturbed;
2. The thermocouple signal is disturbed;
3. Poor thermocouple contact;
4. Short circuit or open circuit of compensation wire;
5. The thermocouple is too close to the heating element;
6. The temperature control loop fails;
7. The thermocouple has been corroded and its electrical characteristics have changed;
8. The thermocouple is to the ground, and the insulation of the protection tube is reduced;
mesure:
1. Take measures to eliminate sources of interference;
2. Add shielding to the signal line;
3. Fasten the thermocouple terminal;
4. Check the compensation wire;
5. Adjust the distance between the two;
6. Repair the temperature control loop;
7. Replace the thermocouple;
8. Check the insulation of the thermocouple;