Migatronic MTE DIALOG, Инструкция по эксплуатации

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18
MAINTENANCE
Lack of maintenance can lead to reduced reliability
and cancellation of the guarantee.
MTE type machines require little maintenance but
dusty and damp conditions are to be avoided if
possible.
A recommended procedure at least once a year is
to open the machine and clean all parts with dry,
compressed air. The fan blades should also be
cleared, and all terminals should be inspected and
cleaned or replaced as necessary. All mechanical
connections on the electrical wires can be sprayed
with a silicon-based spray for damp-proofing.
N.B. No other type of spray should be used.
The water module
If the volume of liquid in the tank goes down to a
level, which might cause the cooling of the torch to
stop and interruption of the weld procedure by the
supervision circuit, cooling liquid must be filled up.
Only use glycol and water (mixture 30/70); the
cooling liquid must contain an anti-bacteria-agent in
order to prevent cultures of bacteria from damaging
the cooling liquid. This means that ordinary motor
cooling liquid cannot be used if this agent has not
been added, since the temperature of the cooling
liquid when welding is not sufficient to kill the
bacteria.
Cooling liqued with anti-bacteria-agent can be
ordered under part no. 99290400.
FUNCTIONS HF
A voltage of 220 V is led to the primary coil of the
transformer. On the secondary coil it is transformed
to 3 KV.
Via the primary winding (L2) of the air transformer
the condenser is charged and when the voltage is
approx. 2.5 KV it is short circuited by the two
multiple spark gaps. When the condenser is
discharged the charging of it starts again.
The output voltage of the HF can be set by an
adjustment of the distance between the spark gaps.
However, the voltage also influences the spark
frequency so that the higher the voltage is the lower
the frequency is. The distance between the spark
gaps is normally set to 0.4 mm.