General Description; Technical Data - Migatronic MTE DIALOG Instruction Manual

GENERAL DESCRIPTION

The MTE machines are single-phase, thyristor
controlled AC/DC welding machines for manual
electrode welding with all types of electrodes as well
as for manual and automatic TIG welding.
The special construction of the power source with a
bifilar-wound welding inductor provides square
waved welding current when welding AC. Contrary to
a conventional welding machine with sine waves,
square waves have the advantage that the current
tops are reduced to ensure a softer arc and less load
on the electrode when TIG welding. The special
construction of the machine allows an adjustment of
the relation between the positive and the negative
half-wave to obtain the correct relation between
cleaning and penetration, that is, AC balance.
The square wave technique in conjunction with the
balance adjustment ensure a stable arc and a better
penetration as well as a reduced electrode wastage.
The all-electronic control unit ensures that the actual
welding current corresponds to the set value.
When electrode welding an "anti-sticking" device
prevents electrodes "sticking" to the workpiece as
the current is reduced to 5 A in case of short-circuit.
A watercooling unit type CTU 3000 (part no:
76118013) can be mounted.

TECHNICAL DATA

Duty cycle %
Permitted load
At voltage V
MAINS VOLTAGE / CURRENT
U : 1 x 220
1
U : 1 x 250
1
U : 1 x 380
1
U : 1 x 415
1
U : 1 x 440
1
*) U : 1 x 500
1
Consumption kvA
Consumption max. kvA
Current range AC
Current range DC
Open circuit voltage AC
Open circuit voltage DC
Ripple voltage, open cir.
**) Effect 150 A/26 V
**) Effect cos.phi.
**) Efficiency
No load consumption kW
1
Protection class
Standard
LxWxH, air
LxWxH, water
Weight
*) Not standard, can be delivered for other voltages
**) AC-balance set at 50%
1
Indicates that the machine cannot be used outside in the rain
5
MTE 320 A/W
X : 100 60
I : 190 245
2
28 30
U :
2
48 65
I :
1
42 57
I :
1
28 38
I :
1
26 36
I :
1
I : 24 33
1
I : 21 28
1
12,9 16,7
:
:
20-320
:
5-320
:
: 84-90 dc
: 84-90 dc
: < 5%
0,52
:
0,77
:
0,60
:
0,5
:
IP21AF
:
: EN60974-1
EN50199
mm : 1020x570x855
1020x570x1010
mm :
224
kg :
30
320
30
88
77
51
48
44
39
21,8
25