Operation Manual

11
1- Press button for 3 seconds
2. Set the automatic arc slope from 1 to 10 sec (display) using key.
3. Validate the required figue by pressing button .
Recommended combinations / Electrode grinding
Current (A)
Ø Electrode (mm)
= Ø wire (filler metal)
Ø Nozzle
(mm)
Flow rate
(Argon L/mn)
0,5-5 10-130 1.6 9.8 6-7
4-8
130-200
2.4
11
7-8
To optimise the weld, use an electrode ground as below :
d
l
REMOTE CONTROL
The remote control operates in TIG and MMA mode.
Connector technology
The FLEX 250A CEL is equipped with a female socket for remote control. The specific 7 point male plug (product
ref.045699) enables connection to a manual remote control (RC) or foot pedal (PEd).
For the cabling layout, see the diagram below.
Connecting
1- Power up the machine
2- Plug the pedal/remote control to the connecting socket on the machine.
3- The screen will flash and display « No » (Nothing),
4- Select the type of control using keys :
« No » (Nothing) / « RC »  (Remote Control) / « PEd »  (Pedal)
5- After 2 seconds the display will freeze on the chosen selection, then displays the welding current.
NB: In case of error, unplug the remote control, (« No » will be displayed) and re-start the connection process.
Remark: Remote type choice will be required each time the machine is powered up.
Functions
Manual remote control (ref.045675) / Pedal (ref.045682):
The remote control enables the variation of current from minimum intensity (DC: 10A / MMA: 10A) to an intensity
defined by the user.
In this configuration, all modes and functions of the machine are accessible and can be set.
THERMAL PROTECTION & DUTY CYCLE
• Thermal protection : when thermal protection is activated, cooling time is about 2 to 5 min depending on
external temperature.
• Leave the machine connected to the supply after welding in order to let it cool down.
• The welding unit describes an output characteristic of "constant current" type. The duty cycles following
the norm EN60974-1 (at 40°C on a 10mn cycle) are indicated in the table here below :
L = 2.5 x d.
L
D: Switch contact
C: Earth
B: Cursor
A: + 5V
Nb: The Potentiometer value must be 10 KΩ
Ref.045699