B-4
OPERATION
B-4
Rev. 05
OPTIMARC
®
AC/DC 350-TP
SAFETY PRECAUTIONS
Read this entire section of the operating
instructions before operating the machine.
ELECTRIC SHOCK can kill.
Do not touch electrically live
parts or electrode with skin or wet
clothing.
Insulate yourself from work
and ground.
Always wear dry insulating gloves.
FUMES AND GASES can be
dangerous.
Keep your head out of
fumes.
Use ventilation or exhaust
to remove fumes from breathing
zone.
WELDING SPARKS can cause fire
or explosion.
Keep flammable material
away.
Do not weld on closed
containers.
ARC RAYS can burn eyes and
skin.
Wear eye, ear and body
protection.
PLEASE SEE ADDITIONAL WARNING
INFORMATION AT THE FRONT OF THIS
OPERATOR’S MENUAL.
DUTY CYCLE
The duty cycle of a welding machine is the percentage of
time in a 10 minute cycle at which the welder can operate
the machine at rated welding current.
60% duty cycle:
Weld for 6 minutes
Break for 4 minutes
Excessive extension of the duty cycle may cause the
thermal protection circuit to activate.
THERMAL PROTECTION
The OPTIMARC
®
machine is equipped with thermal
protection devices. When the machine has gone into
thermal overload, the output will be shut off and the
thermal protection symbol will be displayed on the
screen. When the machine has been cooled to a safe
temperature, the thermal protection symbol will disappear
and the machine may resume normal operation.
Note:
The machine
’s welding output will be available after a
thermal protection shutdown.
OPERATIONAL FEATURES AND
CONTROLS
FRONT PANEL (SEE FIGURE B.1)
1
2
3
4
5
6
7
8
9
10
11
FIGURE B.1
1. ON/OFF POWER SWITCH
Place the lever in the upside position to energize the
machine.
2. TFT DISPLAY ZONE
Please see FIGURE B.3 for more detailed instruction.
3. PARAMETERS SELECTIONS KNOB
The knob and button are to be used for parameters’
selection and confirmation, please see FIGURE B.3 for
more detailed instruction.
4. RETURN BUTTON
The button is to be used for returning to main interface,
please see FIGURE B.3 for more detailed instruction.
5. PARAMETERS ADJUSTING KNOB
The knob and button are to be used for parameters’
adjusting and confirmation, please see FIGURE B.3 for
more detailed instruction.
6. COOLED WATER INLET
External cooled water input connector.
WARNING
