Top of Support & Service > MAINTENANCE/TROUBLESHOOTING/APPLICATION EXAMPLES > Offset Value Input Methods
If there is a difference between “set temperature” and “tip temperature”, the “tip temperature” can be adjusted by entering an offset value.
If “tip temperature” is higher than “set temperature”, input a negative offset value.
If “tip temperature” is lower than “set temperature”, input a positive value.
|Tip temperature||Decreases Increases|
|Offset value input range||-50ºC/-90ºF||0ºC||+50ºC/+90ºF|
Current offset value + Difference in temperature = New offset value
⇒ Input “ -25 ” as the new offset value.
⇒ Input“20” as the new offset value.
Here shows how to offset, for example HAKKO FX-951.
The offset value input method varies with its product. As for the details, please confirm the method of each product by its instruction manual. In case the offset value input method is uncertain (unavailable of its instruction manual), please contact with the nearest representative. Also instruction manuals are always available on "Document Portal" for download when needed.
When the card is inserted, the unit is set to the temperature setting mode and the left digit position starts to flash.
While the left digit position is flashing, press "#" to change the temperature setting mode to the offset mode.
(The 3-digit value displayed will show the current offset value.)
Press the UP "▲" or DOWN "▼" button to select "-" or "0" for the left digit position.
Press " * " to make the center digit position flash.
Press the UP "▲" or DOWN "▼" button to select "0" to "5" for the center digit position.
Press " * " to make the right digit position flash.
Press the UP "▲" or DOWN "▼" button to select "0" to "9" for the right digit position.
Each time the UP "▲" or DOWN "▼" button is pressed, the value changes from "0" to "9" in sequence.
If a value exceeding the offset value input range (-50 to 050/-90 to 090) is input, the mode will return to the operation step No. 2.
When the "*" button is pressed, the mode will return to the normal operation and be automatically adjusted to the set temperature.
* When operation is completed, remove the card if necessary.
Finally confirm that the input offset value has been set correctly.
Actually measure the tip temperature using the thermometer (FG-100B) or soldering tester (FG-101B), to make sure that the "tip temperature" is the same as the "set temperature".
If the difference between "tip temperature" and "set temperature" is large, reset the offset value to "000" (initial value) and retry the offset operation.