Weldmatic 140i
Model No MC104, Iss A 09/15
7
Mains
Circuit Breaker Rating
20 Amps
Supply plug
10 Amp
Fitted Supply Cable
1.5 mm
2
Three Core, Heavy Duty PVC
Power Supply Outlet (240 V) & Extension
Lead Rating
10 Amp
Cooling
Fan cooled, air drawn in through front grille.
Fig 1
Attaching the Weldarc Shoulder Strap
1
2
3
4
4 Operation
VRD Function
(Voltage Reduction Device)
VRD is optional for the Weldmatic 140i.
The machine is supplied with the
VRD disabled.
VRD Disabled
The open circuit output voltage is
approximately 72 Volts DC.
The ‘VRD SAFE’ indicator on the front
panel will only light up momentarily
during power up.
VRD Enabled
If VRD is required, the VRD can be enabled
by an authorised WIA service agent.
When not welding the ‘VRD SAFE’
indicator on the front panel will come on
and the output voltage will be reduced to
approximately 13.5V, which is below the
required safe level of 35V DC.
Electrode Striking and Restriking
When the electrode is struck on the work
piece the machine will detect a start
condition and increase the output voltage
to start welding. The ‘VRD SAFE’ indicator
will turn off.
To restrike a used electrode it may be
necessary to remove excess flux from
electrode tip.
The strike action is a touch - twist - lift.
THE VRD on the Weldarc 140i complies
with the requirements of AS 1674.2 for
use in ‘Category C’ environments.
Shoulder Strap
To attach the shoulder strap to the
Weldarc, feed the strap through the top of
the shoulder strap bracket located on top
of the Weldarc at the front and rear.
