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Cutting Process
The air plasma cutting process uses air or nitrogen as
primary cutting gas and as torch cooling gas.
The pilot arc is struck as follow: the torch button energize
an electrovalve (solenoid valve). This valve lets the gas
flow during the cutting and the post-flow stages.
The design concept at the basis of these power sources is
to have available a current which remains constant at the
set value, independently from the length of the plasma
arc.
When preparing to operate, make sure you have all
materials needed to complete the job and have taken all
safety precautions. Install the machine as instructed in this
manual and remember to attach the work clamp to the
work piece.
With the machine switched OFF, prepare the torch
with the consumables adequate to the desired process
(CUT / GRID / GOUGE). Refer to the Torches
Instruction Manual to select the correct combination of
consumables.
Connect the Torch and the worck cable to the
machine.
Turn ON the Power Switch placed on the back of the
machine; the Power ON/OFF LED on the front panel
will turn ON. The unit is now ready to operate.
Check that the primary gas is available through the
Gas Purge function.
Select the desired Operating Mode process.
Set the desired current value with the Output Current
knob.
To start the selected process just press the torch button,
making sure you are not aiming the torch gas blow
towards people or foreign objects. During the process it is
possible to hold the torch away from the work piece for an
extended period of time.
Once the process is terminated releasing off the torch
button will cause the plasma arc to be turned off; the gas
flow will continue to allow the cooling down of the torch.
The Post Flow time is proportional to the selected cutting
current and it is divided into 4 time ranges:
Selected Cutting Current
Less than 30A
Between 30A and 40A
Between 40A and 50A
Greater than 50A
English
Post Flow Time
15seconds
20seconds
25seconds
30seconds
10
English
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