GYS PROGYS 200 A PFC Manual De Instrucciones página 8

6. Set the gas flow on the gas bottle regulator and then open the valve of the torch
7. To strike an arc :
Touch workpiece with the
a-
electrode.
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
0.5-5
4-8
To optimize the quality of the weld, use an electrode grinded as below :
d
THERMAL PROTECTION & DUTY CYCLE
• Thermal protection: thermal protection light
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.
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.
Current (A) Ø Electrode (mm)
= Ø Rod (filler metal)
10-130
130-200
L = 2.5 x d.
l
L

PROGYS 200 A PFC
X% @ I max X% @ I max
20%
60%
100%
Raise the electrode from
b-
2 to
workpiece.
Ø Nozzle
(mm)
1.6
2.4
turns on and the cooling time is about 1 to 5 min according
200A 27% 200A
120A 60% 145A
90A 100% 117A
5 mm from the
Flow rate
(Argon L/mn)
9.8 6-7
11 7-8
8