Tweco 200i Multi Process Welding Inverter - Manual (Page 23)

TRANSMIG 200i
Manual 0-5209 3-5 INSTALLATION, OPERATION AND SETUP
3. Digital Amps Meter (Left Digital Display)
MIG Mode
This digital meter is used to display the pre-set (preview) Wirefeed Speed in Meters Per Minute (MPM)
in MIG mode and actual welding amperage of the power source when welding. At times of non-welding,
the digital meter will display a pre-set (preview) value of Wirefeed Speed. This value can be adjusted by
varying the Amperage Control Knob (4).
STICK and LIFT TIG Modes
The digital meter is used to display the pre-set (preview) amperage in STICK / LIFT TIG modes and actual
welding amperage of the power source when welding. At times of non-welding, the amperage meter will
display a pre-set (preview) value in both STICK and LIFT TIG modes. This value can be adjusted by varying
the Amperage Control Knob (4).
When welding, this digital meter will display actual welding amperage in all modes.
At the completion of welding, the digital meter will hold the last recorded amperage value for a period of
approximately 10 seconds in all modes. The amperage meter will hold the value until; (1) any of the front
panel controls are adjusted in which case the unit will revert to preview mode, (2) welding is recommenced,
in which case actual welding amperage will be displayed, or (3) a period of 10 seconds elapses following
the completion of welding in which case the unit will return to preview mode.
NOTE
The preview functionality provided on this power source is intended to act as a guide only. Some
differences may be observed between preview values and actual welding values due to factors
including the mode of welding, differences in consumables/gas mixtures, individual welding
techniques and the transfer mode of the welding arc (ie dip versus spray transfer). Where exact
settings are required (in the case of procedural work), it is recommended that alternate measurement
methods be utilised to ensure output values are accurate.
4. Amperage Control (Wirespeed)
The amperage control knob adjusts the amount of welding current delivered by the power source. In
MMAW (stick) and GTAW (TIG) modes, the amperage control knob directly adjusts the power inverter to
deliver the desired level of output current. In GMAW/FCAW modes (MIG), the amperage knob adjusts the
speed of the wire feed motor (which in turn adjusts the output current by varying the amount of MIG wire
delivered to the welding arc). The optimum wire speed required will dependent on the type of welding
application. The setup chart on the inside of the wire feed compartment door provides a brief summary
of the required output settings for a basic range of MIG welding applications.
NOTE
The preview functionality provided on this power source is intended to act as a guide only. Some
differences may be observed between preview values and actual welding values due to factors
including the mode of welding, differences in consumables/gas mixtures, individual welding
techniques and the transfer mode of the welding arc (ie dip versus spray transfer). Where exact
settings are required (in the case of procedural work), it is recommended that alternate measurement
methods be utilised to ensure output values are accurate.
5. MIG Torch Adaptor (Euro Style)
The MIG torch adaptor is the connection point for the MIG welding torch. Connect the torch by pushing
the torch connector into the brass torch adaptor firmly and screwing the plastic torch nut clockwise to
secure in position. To remove the MIG Torch simply reverse these directions.