48
3BA00205 • 2020-10-28 • Rev. 5
Ersa i-CON
VARIO 2
Error diagnosis and remedy
7.3.2
i‑TOOL thermocouple
Between measuring points
③
and
④
you should be able to measure a volume resistance of approx. 2
to 3 Ohm. In case of a higher volume resistance the heating element must be replaced.
When measuring on the plug of the i‑TOOL (heating element must be installed in the soldering iron),
the resistance measured between the two measuring points
⑤
and
⑥
should be approx. 3.8..5 Ohm.
7.4
Continuity test for CHIP TOOL VARIO
If the soldering tip is not heated up correctly after the previously mentioned points have been
checked, you can check the heating element resistor and the temperature sensor with an ohmmeter
for conductance.
ATTENTION! Risk of burning!
Only perform the following remedial action after the soldering tool has cooled down.
The volume resistance between the measuring points
①
and
②
should be 1.38 Ω ± 5% and between
measuring points
③
and
④
6.6 Ω ± 5%. If this is not true, you must replace the heating element.
7.5
Continuity test for i‑TOOL AIR S
If the soldering temperature is not reached after the previously mentioned points have been checked,
you can check the heating element resistor for conductance using an ohmmeter.
ATTENTION! Risk of burning!
Only perform the following remedial action after the soldering tool has cooled down.
Plug of i‑TOOL AIR S
Sensor 1
Winding 1
Winding 2
Sensor 2
2,3 Ω
± 10%
1
2
