Transmig 210, 250, 310, 330
Page 18 of 31 DOC No: MIGTRN0001
Date: 14/09/98 Issue No: 2
6.8 Choice of Inductance Setting (Transmig 210 & 250 Only)
The Transmig 210 & 250 have two inductance taps. These inductance terminals are the positive
welding terminals. Inductance selection can effect the spatter level and penetration characteristics of
the weld. The correct choice depends upon the shielding gas, transfer mode and the material type.
Used for:
1. CO
2
shielded welding.
2. Dip transfer with
Æ
1.2mm wires (CO
2
or mixed gas).
3. Gives a hotter weld in DIP transfer.
Used for:
1. Spray transfer
2. Aluminium and Flux Cored wires.
3. Gives a cooler weld in DIP transfer.
CAUTION 4:
If in doubt, use the high inductance setting.
6.9 Wirespeed Control (Compact Models & 2R Wirefeeder Only)
The Wirespeed Control knob controls the welding current via the electrode wire feed rate. ie the
speed of the wire feed motor.
6.10 Spot Timer (Compact Models & 2R Wirefeeder Only)
With the
MODE SELECTOR
switch is switched to the
SPOT
position, the
SPOT TIME
knob
controls the duration of a single spot weld.
With the
MODE SELECTOR
switch is switched to the
STITCH
position, the
SPOT TIME
knob
controls the welding or 'ON' time whilst stitch welding.
6.11 Dwell Timer (Compact Models & 2R Wirefeeder Only)
The
DWELL TIME
knob controls the interval or 'OFF' time whilst stitch welding.
6.12 Mode Selector
Switch (Compact Models & 2R Wirefeeder Only)
The Mode Selector switch selects the method of welding mode.
a)
SPOT
This mode of welding is used to weld two plates together at a desired
location by melting the top & bottom plates together to form a nugget
between them. The spot time period is set by the
SPOT TIME
control
knob. Refer to CAUTION 5.
CAUTION 5:
A spot nozzle (P/N
EL22I62FAS)
should be used on the MIG torch to obtain
consistent spot welds.
b)
CONTINUOUS
This mode of welding is used to weld two or more components together
with a continuous weld.
c)
STITCH
This mode of welding is used to weld two or more components together
with a stitch weld. The
SPOT TIME
knob controls the welding or 'ON'
time whilst the
DWELL TIME
knob controls the interval or 'OFF' time
for stitch welding.
6.13 Burnback Control (Compact Models & 2R Wirefeeder Only)
The amount of electrode wire that is burnt back out of the weld pool, when the torch trigger switch
is released, can be adjusted by the potentiometer shaft that is located inside the wire spool cavity
compartment above the wire feed motor.
High Inductance Symbol
Low Inductance Symbol
