Matco Tools MP200STDVI Owner's Manual page 8

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POWER INDICATOR LIGHT
In the "OFF" position no power is being supplied to the electrode holder. In the "ON" position power is
supplied to the main transformer, control circuit and weld output is being supplied to the electrode holder.
ALARM INDICATOR LIGHT
If the duty cycle of the welder is exceeded, the internal temperature will exceed safe temperatures and
the machine will shut down. The thermal overload light will come on indicating this. Leave the unit on and
allow 15 minutes for cool down before the light will go off and the temperature to fall into an allowable
operating range.
DIGITAL AMPERAGE DISPLAY
Digital meter provides welding amperage while welding.
PROCESS SELECTOR SWITCH
When DC stick welding, the switch will be in the "stick" position (Left). When performing Lift Start DC TIG
welding, this switch will be in the TIG position (Right).
POSITIVE WELD OUTPUT CONNECTOR
This is the connector for the electrode holder and cable, most often, when STICK welding. When this
machine is used for TIG welding, this connector is for the grounding cable.
NEGATIVE WELD OUTPUT CONNECTOR
This is the connector for the ground cable and clamp, most often, when STICK welding. When this
machine is used for TIG welding, this connector is for the TIG torch.
ELECTRODE HOLDER AND CABLE
The Electrode Holder holds the stick welding electrode. The cable most often connects to the Positive (+)
weld output connection for stick welding.
GROUND CABLE AND CLAMP
The ground cable and clamp are attached to the work piece to complete the circuit allowing the flow of
current needed to weld.
WELDING AMPERAGE CONTROL
This front panel adjustment allows you to adjust the welder amperage output.
Page
8
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