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MAINTENANCE/TROUBLESHOOTING/APPLICATION EXAMPLES

Top of Support & Service  >  MAINTENANCE/TROUBLESHOOTING/APPLICATION EXAMPLES  >  Offset Value Input Methods

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.
Offset indication -50/-90 000 050/090
Offset value input range -50℃/-90℉ 0℃ +50℃/+90℉
Tip temperature Decreases    Increases

Calculation method of offset value

  1. Measure the “tip temperature” and check the difference between “tip temperature” and “set temperature”.
  2. Insert the card to FX-951 and press”#” button to check the current offset value .
  3. Confirming the current offset value [2] and the difference in temperature [1],calculate a new offset value .

    Current offset value + Difference in temperature = New offset value

Ex.1 “set temperature”: 360℃  “tip temperature”: 395℃
“offset value”: 10
  • Difference in temperature
    360℃ - 395℃=-35℃
  • New offset value
    10 + (-35℃)=-25

⇒ Input “ -25 ” as the new offset value.


Ex.2 “set temperature”: 360℃  “tip temperature”: 320℃
“offset value”: -20
  • Difference in temperature
    360℃ - 320℃=40℃
  • New offset value
    -20 + 40℃=20

⇒ Input“20” as the new offset value.

Offset value input methods

Here shows how to offset, for example 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.

  1. When the card is inserted, the unit is set to the temperature setting mode and the left digit position starts to flash.

    When the card is inserted, the unit is set to the temperature setting mode and the left digit position starts to flash.
  2. 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.)

    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.)
  3. Press the UP "▲" or DOWN "▼" button to select "-" or "0" for the left digit position.

    Each time the UP "▲" or DOWN "▼" button is pressed, display alternates between "0" (+) and "-" (-).
    The photo shows the case where the offset value is being changed from  010  to  -25 .
  4. Press "*" to make the center digit position flash.

    The photo shows the case where the offset value is being changed from 010 to -25.
  5. Press the UP "▲" or DOWN "▼" button to select "0" to "5" for the center digit position.

    Each time the UP "▲" or DOWN "▼" button is pressed, the value changes from "0" to "5" in sequence.
  6. Press "*" to make the right digit position flash.

  7. 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.

  8. 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.

  9. 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".