38
3
Display of
temperature values
remains
unchanged
(usually around 40 – 65 °C).
Rapid and repeating heating-up phases
.
When connecting the thermocouple, the connecting wires are
short-circuited.
Check the connection.
At the point of measurement, the thermocouple
short circuits
.
Replace the thermocouple.
4
After replacing the thermocouple, the
temperature display
is faulty:
The screen displays
1372 °C, respectively
2412 °F
. Error 203 occurs.
The thermocouple was not connected or is
interrupted.
5
Automatic reduction
of
air volume:
In the case of very wide nozzles and high
welding temperatures, the desired volumet-
ric fl ow is sometimes not achieved.
The air volume set automatically decreases
by 10 l/min.
The performance of the air pump is limited. To achieve consistent
welding results, the volumetric fl ow is reduced to a controllable value.
At the start of the weld,
choose
a
lower volumetric fl ow.
6
No temperature increase
at the welding
nozzle
Ensure that the heater is switched on.
If the heater is active, the display value “PWM” is displayed in green
on the information screen.
If the heater is switched off , the display is shown in red.
If this value is greater than 20% and no temperature increase can be
determined at the welding nozzle,
replace
the
heating element.
7
Signifi cant wave formation at the weld seam
Make sure that the correct arm (pedestal, quickarm or sidearm) has
been selected in the Home view.
The wave formation can be reduced or prevented by inputting the
upper diff erential (the upper roller can be operated with a diff erential
speed to the lower roller).
Make sure that the information input in the “Settings” tab under upper
roller Ø and lower roller Ø is correct.
By default, these two values are 63.5 mm.
12. Maintenance
Device may be operated only by
trained specialists
or under their supervision. Children are not permitted to
operate the equipment under any circumstances.
Danger to life, high voltage!
Before opening the switch cabinet, the device must be disconnected from the
power supply at all poles (disconnect the power plug.) Live components and connections may be exposed in
the process.
