Weller WD 3M Manuel D'instructions page 33

WD 3M
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Changing calibration at 450 °C / 842 °F
1. Insert the temperature sensor (0.5 mm) of the external
temperature measuring instrument into the temperature
measuring tip.
2. Select the menu item FCC in Menu 2.
3. Press the UP button.Calibration point 450 °C / 842 °F is selected.
The soldering tip is now heated to 450 °C / 842 °F.
The control indicator flashes as soon as the temperature is
constant.
4. Compare the displayed temperature of the measuring instrument
with that shown in the display.
5. Use the UP or DOWN button to set the difference between the
value indicated on the external meter and the value indicated on
the repair station.
Maximum possible temperature adjustment ± 40 °C (± 72 °F).
Example:
Display 450 °C, external measuring instrument 448 °C:
setting
Display 450 °C, external measuring instrument 452 °C:
setting
Note Press button ┌ 3 ┐ to exit the menu item without changes (EXIT).
6. Press button ┌ 2 ┐ (Set) to confirm the value.
The temperature deviation is now reset to 0.
Calibration at 450 °C / 842 °F is now concluded.
7. Exit Menu 2 with button ┌ 3 ┐.
Resetting calibration to factory settings
1. Select the menu item FCC in Menu 2.
2. Press and hold down button ┌ 3 ┐.
3. Then press the UP and DOWN buttons simultaneously.
"FSE" (Factory Setting Enabled) appears in the display.
The repair station is now reset to the factory calibration.
4. Proceed to the next menu item with the button ┌ 1 ┐ (back) or
┌ 2 ┐ (forward).
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