10
Arc-power
The arc power function is used to stabilise the
arc in MMA welding. This can be acheived by
increasing welding current during the short-circuits.
The additional current ceases when the short circuit is
no longer present.
Set welding
current
short-
circuit
Additional current
supply from the arc
power function
time
Amp
Arc power can be adjusted between 0 and 100% of
the welding current setting.
E.g. If the welding current is set to 40A and arc
power to 50% the additional current is 20A
equals 60A when doing arc power. If the arc
power is set to 100% the additional current is
40A equals 80A when doing arc power.
Internal/external adjustment
It is possible to choose between internal and
external adjustment. The external adjustment is
active when the indicator is illuminated.
Anti-freeze
This machine is provided with an anti-freeze control.
The anti-freeze-control reduces the current when the
electrodes stick to the weld piece. This makes it easier
to break off the electrode and welding can continue.
TECHNICAL DATA
Power source:
PI 250 MMA
PI 350 MMA
PI 350 MMA CELL
PI 500 MMA
Mains voltage (50Hz-60Hz)
3x400 V ±15%
3x400 V ±15%
3x400 V ±15%
3x400 V ±15%
Fuse
10 A
25 A
16 A
32 A
Mains current, effective
7.1 A
17.1 A
15,4 A
22.5 A
Power, (100%)
4.9 kVA
11.9 kVA
10.7 kVA
15.5 kVA
Power, max
9.0 kVA
16.0 kVA
13.2 kVA
23 kVA
Open circuit power
35 W
40 W
40 W
40 W
Efficiency
0.87
0.8
0.79
0.90
Permitted load:
Duty cycle 40°
100%
150 A
280 A
250 A
330 A
Duty cycle 40° 60%
190 A
325 A
275 A
400 A
Duty cycle 40° 40%
-
350 A
-
-
Duty cycle 40° 35%
250 A
-
300 A
500 A
Duty cycle 20° 100%
170 A
340 A
300 A
400 A
Duty cycle 20° 60%
210 A
-
-
500 A
Open circuit voltage
95 V
95 V
95 V
95 V
Current range
5-250 A
5-350 A
5-300 A
5-500 A
1
Application class
S
S
S
S
2
Protection class (IEC 529)
IP 23
IP 23
IP 23
IP 23
Standards
EN/IEC60974-1
EN/IEC60974-10 (Class A)
Dimensions (hxwxl)
360x220x520 mm
550x250x640 mm
550x250x640 mm
550x250x640 mm
Weight
20 kg
30 kg
31 kg
33 kg
Function:
Proces
Arc-power
Electrode
0-100 %
Hot-start
Electrode
0-100 %
Anti-freeze
TIG/Electrode always on
TIG-ignition
TIG
LIFTIG
1
S
The machine meets the standards which are demanded of machines working in areas where there is an increased risk of electric shock
2
Equipment marked IP23 is designed for indoor and outdoor applications
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