Common troubleshooting techniques for experimental high-temperature electric furnaces
1. There is no display when starting up, and the power indicator does not light up: check whether the power line is intact; whether the leakage and circuit breaker maintainer switch on the back of the instrument is in the “on” position; whether the fuse can be blown.
2 .Continuous alarm at power-on: Press the “Start-in” button in the initial state. If the temperature is greater than 1000°C, the thermocouple is disconnected. Check whether the thermocouple is intact and whether the wiring is in good contact.
3. After entering the experimental test, the “heating” indicator on the panel is on, but the temperature does not rise: check the solid state relay.
4. After turning on the power of the instrument, the furnace temperature rises from time to time when the heating indicator is off in the non-experimental state: Measure the voltage at both ends of the furnace wire. If there is 220V AC voltage, the solid state relay is damaged. Change to the same model That’s it.