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4.4.3 Discharging the Current after a test fire (the Stud is not welded)
WARNING – ELECTRIC SHOCK CAN INJURE OR KILL!
The gun and ground circuits are electrically charged or ”hot” when The Studhorse is switched on
and the gun trigger is depressed. Do not touch these ”hot” parts with bare skin or wet clothing
before the discharging to ground. The electrical charge in live in the gun for approximately 20
seconds after the trigger is pulled on a ”dry fire”.
Water, moisture and human skin are electrical conductors and complete an electrical circuit to
ground (earth) allowing current to easily flow. Never weld in wet clothing, gloves or footwear.
Always protect yourself from electricity using dry insulation
Never leave an energized machine unattended and always check the condition of cables,
connections and protective gear.
Always keep one hand free when testing an energized machine and unplug equipment before
cleaning or servicing.
Please review and follow all safety precautions in this manual before using the equipment.
4.4.4 Responding to the 5 Zones Thermal Protection Control
The display will begin blinking if any component is overheating. The operator must stop welding
Studs and allow the power source to cool down. This may take 3 minutes or more depending on
which component is overheated. The following components monitor the internal temperature in
The Studhorse welder:
The 5 Zones of termal protection are incorporated to protect the machine from over temperature
and extend the useful life of the machine. The feature also reduces the risk of costly repairs.
The following zones are protected in your Studhorse power source:
Main Transformer
If overheating occurs, wait 1 minute before restarting.
Main Inductor
If overheating occurs, wait 7-8 minutes before restarting.
Output Capacitor
The Output Capacitor may overheat and shut down the welder. If this occurs, wait
10 minutes before restarting. The temperature sensor will protect the output
capacitor.
Input Capacitor:
Should one phase be lost when welding with three-phase input power, current to
the Input Capacitor could increase causing it to potentially overheat or be
destroyed. Wait 10 minutes
before restarting the welder.
Fan Motor:
Some operation with restricted airflow will overheat the fan motor. Wait 10 minutes
before restarting the welder.
Summary of Contents for DT1200i
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