RT2500
10
1.4 Overview of Machine
Front View
Power source front panel layout
1. Remote control socket
2. Overload indicator
3. Mode switch
4. Current control
5. Power indicator
6. - ve weld terminal.
7. + ve weld terminal.
8. Off/On switch
7
R2500
SECTION 4 — OPERATION
4.1 Description of controls
1
Remote control socket - For connection of external remote
control or TIG300.
2
Overload indicator - Indicates duty cycle has been ex-
ceeded and the thermostat inside the machine has oper-
ated.
3
Mode switch - Selects the welding mode.
4
Current control - Adjusts the machines output current.
5
Power indicator - indicates mains power, lights up when
machine is switched on.
6
-ve weld terminal.
7
+ve weld terminal.
8
Off/On switch, (on rear panel of machine).
4.2 Operation
4.2.1 MMA Welding
•
For straight polarity welding, connect the electrode
holder to the positive weld terminal and the earth re-
turn lead to the negative weld terminal. For reverse po-
larity welding, reverse these connections.
•
Turn the mode switch to 'local', the machine is now in
MMA mode.
•
Adjust the current control to the recommended setting
for the size and type of welding electrode to be used.
•
Turn the mains switch to the on position, the power on
indicator will light and the machine is ready to weld.
•
The R2500 is suitable for welding all types of electrodes
within the current rating of the machine, normally up to
5.0mm.
The R2500 should never be used with arc-air gouging
or cutting electrodes.
4.2.2 MMA Welding with remote control
•
Select welding polarity as in paragraph 4.2.1.
•
Turn the mode switch to remote.
•
Plug the control cable supplied with the remote into the
remote control socket.
•
Plug the remote control onto the other end of the control
cable.
•
Adjust the current control on the remote to the recom-
mended setting for the type and size of welding elec-
trode being used. (The standard Newarc RC300 remote
does not have current settings but is marked 1 to 10, for
the R2500 allow 25A per division).
•
Turn the mains switch to the on position, the machine is
ready to weld.
4.2.3 TIG Welding with TIG300
Do not use the TIG300 until you have read and fully
understood the TIG300 manual.
•
Connect the TIG300 to the R2500 as per the diagrams in
the TIG300 manual.
•
Turn the mode switch to TIG remote, All control of the
welding procedure is now passed to the
TIG300.
•
Select welding mode and current by adjusting the con-
trols on the TIG300 with reference to the TIG300 manual.
•
Turn the mains switch to the on position, the power on
indicator on the R2500 and the display on the TIG300 will
light up, the machine is ready to weld.
