HD Manual Arc Welders
17
©2000 CIGWELD All rights reserved
8.2 Transarc
400S
Controls
a) ON/OFF
Switch
This switch connects the Mains
supply voltage to the welding
transformer when in the ON position
which enables the user to commence
welding.
b) Power
Light
The Power light illuminates when the
ON/OFF Switch is turned to the on
position and the Mains power is on.
c) Welding
Current
Control
The welding current is increased by
turning the Current Control clockwise
or decreased by turning the Current
Control anti-clockwise.
d) Work
Terminal
The Work Terminal is a heavy duty
bayonet type terminal which is the
return path for the welding current. It
is essential, however, that the male plug is inserted and turned securely to achieve a good
electrical connection. See CAUTION 1 on page 17.
e) LO Electrode Terminal
The Low Range Terminal is a heavy duty bayonet type terminal with a high OCV (Open
Circuit Voltage) and is designed for electrodes that generally require an OCV less than or
equal to 79 Volts, eg low hydrogen (AS/NZS E4818) type electrodes. It is essential,
however, that the male plug is inserted and turned securely to achieve a good electrical
connection. See CAUTION 1 on page 17.
f) HI
Electrode
Terminal
The High Range Terminal is a heavy duty bayonet type terminal with a low OCV (Open
Circuit Voltage) and is designed for electrodes that require an OCV less than or equal to
54 Volts. It is essential, however, that the male plug is inserted and turned securely to
achieve a good electrical connection. See CAUTION 1 on page 17.
CAUTION 1
A loose welding terminal connection can cause overheating and result in the male plug being fused in the
bayonet terminal.
WARNING 4
Before connecting the work clamp to the work and inserting the electrode in the electrode holder make sure
the Mains power supply is switched off.
CAUTION 2
Remove any packaging material prior to use. Do not block the air vents at the front or rear of the Welding
Power Source.
Work Terminal
On/Off Switch
Welding Current Control
Electrode Terminals
