T12 welding head is heater, sensor, welding head, the unity of three body and complex tip, for example a user reflect the red-hot phenomenon. Encounter this kind of phenomenon, is the sensor is out of control, the basic is in a state of beyond repair.

Flushed with burning, short circuit, there is only one reason is that sensor is not real perception tip point temperature properly and when the tip of the soldering iron head temperature above 520 degrees, will be the whole welding head in red.

With exclusion method, first is directly in a soldering iron handle in good condition, see if I can have this kind of situation. If there are no more questions, that is a problem of handle. Against further explored whether the sensors of soldering iron, if the sensor is normal (such as usual the temperature strengths of the screen is only 18 ℃, theory of temperature above 560 ℃ soldering iron red hair), then check if six core socket five core socket welding reverse, field effect tube can burn, handle the sensor welding. Handle line error (new in handle out the problem)

If the screen appeared temperature 420 ℃ in the following, but the reality test temperature reached 560 ℃ above, in this environment iron red hair, indicate the handle is not with the title problems, generally every field effect tube and silicon controlled rectifier tube and the welding head power do not match.

This moment to test with the cleaning method, in a suit of welding head, to see whether this on the environment.

Matters needing attention

1. To turn it off immediately. Avoid heat transferred upwards, hot, damage the handle outside  rubber pieces.

2. To tip temperature down to room temperature, request return and will send you back to the supplier.

1. The new tip appear this kind of circumstance: sensor short-circuit. Appear this kind of circumstance, is the production source of the problem. There are two possible: a, sampling. Through the net, this kind of situation appeared in the cheap welding head, more to save manpower, and the pursuit of efficiency.

Second, a one-time inspection. All inspection, but no points three temperature profile, see only the temperature normal side, didn't see temperature stability in high temperature is the most direct shut down.

2. In use after a period of time a red-hot phenomenon.

We are still looking for reasons from the welding head itself. Sensor solder joint itself is not reliable, in use process, mechanical shock, solder joints caused fall off. Such as: the ke tin.

Because T12 belongs to complex tip, the possibility of the basic no independent repair. Encounter this kind of situation, only to find suppliers for help. According to the actual usage, try to keep the temperature, saving energy and extend the life of the soldering iron.