How to measure the tip-to-ground resistance
1. Insert the power cord of the soldering iron to be tested into the receptacle on the HAKKO FG-101.

2.
Wait until the soldering tip reaches the set temperature.
3.
Press the SELECT button to light up the mode indicator lamp of "OHM."

* When a sensor is not attached or it burns out, the alarm symbol of Burnout (-1) is displayed. If the sensor burns out, replace it with a new one. The same symbol is also displayed when a temperature outside the measurement range is detected.
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