![WilTec 90701A++ User Manual Download Page 16](http://html1.mh-extra.com/html/wiltec/90701a/90701a_user-manual_983810016.webp)
© by WilTec Wildanger Technik GmbH
Item +
Page 16
05 2022-1
C. Calibrating the temperature of the soldering iron
After replacing the heating element or exchanging the handle or soldering tip, the soldering iron should
be re-calibrated.
1.
Plug the 5-pin plug of the soldering iron into the matching socket on the soldering station.
2.
Set the temperature to approx. 400
℃
.
3.
Put the main switch to the on position and wait for the device to reach the temperature set.
Remove the cover cap of the calibrating screw.
4.
When the temperature of 400
℃
has been reached (shown by the lower LED light flashing),
measure the actual temperature at the measuring tip and use a small screwdriver to adjust the
calibrating screw. If turned clockwise, the temperature will be increased, if turned counter-
clockwise, it will be reduced. Then re-fix the cover cap.
Should you use different soldering tips and require an exact temperature, it is advisable to realise one
calibration at once, as the actual temperatures of the individual soldering tips might differ even with
identical temperature settings.
D. Checking the 5-pin plug of the soldering iron plug for damage
Should the soldering iron not work perfectly, you can proceed as follows to exclude a damage of the
connection plug and to localise the fault: Remove the connection cable and measure the values of re-
sistance between the individual pins. The below sheet shows the values to be expected normally.
Spot
Resistance
(Ω)
A
between tip 4 and 5 (heating element)
1.7–1.9
B
between tip 1 and 2 (sensor)
16–18
C
between pin 3 and soldering iron tip
<
2
•
Should the values of A and B differ considerably from the ones stated above, replace the plug
and heating element or sensor.
•
If the value measured exceeds 2
Ω, the soldering iron should be cleaned with steel wool or
sandpaper (s. Fig.).