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Temperature rising:
Press"▲" key directly. If so, the setting temperature will raise 1℃ and the
display window will display the set temperature. When loosen the "▲"key, the
display window will delay the set temperature about 2 seconds. If within 2
seconds, press the "▲"key again, the setting temperature will raise 1℃ again. If
press the "▲" key and not loose at least 1 second, the setting temperature will rise
rapidly. Till the needed temperature reaches, then loose the "▲"key.
Temperature dropping:
Press "▼" key directly. If so, the setting temperature will drop 1℃ and the display
window will display the set temperature. When loose the"▼"key, the display
window will delay the set temperature about 2 seconds. If 2 seconds later, press
the"▼"key again, the setting temperature will drop 1℃ again. If press the"▼"
key and not loose at least 1 second, the setting temperature will drop rapidly. Till
the needed temperature reaches, then loose the"▼"key.
3.4 Sound Setting
1. In the working state and the password is "000"or the inputting password is
right, press the four "▲" and "▼" keys at the same time to turn on or off the
sound.
2. After turning on the sound, the unit will sound "di-di" when click the keys.
3. After turning on the sound, the unit will sound (with alarming work state)
when the setting temperature is high than the real temperature 150℃ during
the heating or the setting temperature is less than the real temperature 80℃
during the cooling.
After turning off the sound, the unit will not sound when clicking the keys or
4.
temperature up-limit or down-limit sound.
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8.2 Checking the Heating Element
1.
Measure the heating element when it comes back to room temperature:
1) Resistance value of heating element under 4Ω.
2) Resistance value of sensor (Red and Grounding wire) under 10Ω.
2.
If the resistance value isn't normal, replace the heating element.
3.
Testing heating element
1) Measure the resistance value between pins 4 and 1 or 2, pins 5 and 1or 2,
pins 3 and 1 or 2, pins 3 and 4 or 5. If it is not ∞, the heating element
and sensor or vibrator switch are touching. This will damage the PCB.
2) Measure the resistance value 'a', 'b' and 'c' to confirm that the leads are
not twisted and that the grounding wire is properly connected.
3) Make sure the spring hook ⑨ has clasped the heater element ⑩.
8.3 Broken Soldering Iron Cord
There are two methods of testing the soldering iron cord.
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