Xcel-Arc Razor Weld ARC180, Руководство пользователя

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VRD - MMA (STICK) Operation:
SWITCHABLE VRD OPERATION:
VRD - Wh
at is it and what does it do?
VRD is short for Voltage Reduction Device and it is a Safety Feature of the welding machine.
VRD reduces the welding power source’s open circuit voltage (OCV). OCV is the voltage measured
between the terminals when not welding. The VRD function will activate welding power when the
electrode is in contact with the work piece and the resistance between the electrode and work is
less than 200 Ohms. This means that the chance of being electrocuted from the secondary welding
circuit has virtually been eliminated in situations where the operator is in contact with the electrode
and the workpiece at the same time. In damp, wet and humid environments the chance of electric
shock from the secondary welding to the operator is increased, in particular if the operator is not
wearing protective leather welding gloves.
VRD can make the arc iginiton of some electrodes more difficutl especially for the inexpeirenced
operator. Switchable VRD allows the VRD function to be switched off thereby increasing the OCV
and providing extra energy to establish the arc at the electrode.
Switchable VRD is controlled by a key switch at the rear of the machine and is in accordance with
AS/NZS 1674.2 2003. It allows the VRD function to be locked ON by the work place supervisor in
those workplace environments where VRD operation is required.
Select VRD On/Off by inserting
the Key and swiching to the On/
Off position required
VRD Led will
illuminate when
VRD is ON
VRD Led will not
illuminate when
VRD is OFF
VRD - ON VRD - OFF
Razor
Weld
ARC 18O ARC 2OO
Razor
Weld
ARC 18O ARC 2OO