17
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NOTE:
One of the problems experienced with novice welders is the
welding wire sticking to the contact tip. This is as a result of the
wire feed speed being too slow. It is always better therefore to
start with too high a speed and back off slightly to avoid the
possibility of the wire welding itself to the tip. This is the reason
position 6 is recommended for start up.
NOTE:
The Wire Feed control is for fine tuning the wire speed. The speed
of wire delivery will increase automatically as the current is
increased. Therefore, once the ideal speed is achieved by fine
tuning, it should not be necessary to adjust this control when the
welding current is changed.
NOTE:
Listen to the sound made. An irregular crackling sound denotes
too high a wire speed. Decrease the speed until a regular, strong
buzzing sound is heard.
THERMAL OVERLOAD
The ‘Thermal Overload’ shuts off the
welder when it becomes too hot,
due to the duty cycle being
exceeded. This is to prevent any
damage to the welder.
When this occurs, the warning lamp
shown will light up. Allow the welder
to cool until the amber light
extinguishes before resuming work.
DUTY CYCLE
The duty cycle determines the machine ‘down time’. i.e 10% means 1 minutes
operation followed by 9 minutes of rest.
The duty cycle must be adhered to
prevent the thermal cutout protection from activating
.
Do not exceed the stated duty cycle for this machine. Failure to heed this
warning may invalidate your warranty.
These welders are covered by regulations EN 60974-1 and EN 50199, where the
duty cycle is expressed as a percentage of time the machine may be used in
a given period for a specified welding current.
IMIG100NG
Duty Cycle (%)
20
60
100
Rated Welding Current (A)
100
68
52
Conventional Load Voltage (V)
19
17.4
16.6
Summary of Contents for 6015610
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