Specifications

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BOSS ARC 140VRD、160VRD Operating Manual
5.0 POWER SUPPLY CONTROLS INDICATORS AND REATURES
Figure 5 BOSS ARC VRD Series front panel
1. Welding currents control——Uses in adjusting the welding current.
2. VRD indicator.
3. Warning indicator——Red colored light instruction welding machine overload.
4. AC power indicator——Green colored light instruction power source is normal.