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Gys PROGYS 200A PFC Manual

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6. Set the gas flow on the gas bottle regulator and then open the valve of the torch
7. To strike an arc :
a- Touch workpiece with the
electrode.
b-
Raise the electrode from
2 to 5 mm
from the
workpiece.
8. At end of the weld :
Up 2 times the arc (up-down-up-down) to start the automatic downslope (see paragraph below). This
movement must be performed in less than 4 sec, at a height of 5 to 10 mm. Then close the valve to
stop the gas after cooling the electrode.
Automatic downslope with adjustable time
Function activation :
This function enables to have a clean weld and to avoid cracks and craters at the end of the weld by
gradually decreasing the welding current until the arc stops. By default this function is not activated. To
active it proceed as follow:
1- Press the selector key
2. Adjust the downslope time from 1 to 10 sec (display) using key .
3. Save the required value by pressing the selector key .
Recommended combinations / Electrode grinding
Current (A)
Ø Electrode (mm)
= Ø Rod (filler metal)
Ø Nozzle
(mm)
Flow rate
(Argon L/mn)
0.5-5 10-130 1.6 9.8 6-7
4-8
130-200
2.4
11
7-8
To optimize the quality of the weld, use an electrode grinded as below :
d
l
THERMAL PROTECTION & DUTY CYCLE
• Thermal protection: thermal protection light turns on and the cooling time is about 1 to 5 min according
to external temperature.
• Leave the machine connected to the power supply after welding in order to let it cool down.
• The device described has an output characteristic of 'constant current' type. The duty cycle is indicated in
the table below according to EN60974-1 Norm.
PROGYS 200 A PFC
X% @
I max
X% @
I max
20%
200A
27%
200A
60%
120A
60%
145A
100%
90A
100%
117A
MAINTENANCE
• Refer all servicing to qualified person.
• Disconnect the unit from the mains and wait until the fan stopped before working on the unit. Inside the
device, voltage and current are dangerous.
L = 2.5 x d.
L
… 8 …


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