Remote Connection; Remote Control Of The Welding Current; Connecting The Out-Puts; Connecting The Gas Cylinder And The Gas Regulator - Fimer T252 Manuel D'emploi

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9. REMOTE CONNECTION

Figure 6 shows the connections of the remote
connector (12 of fig 1).
Where:
Sw is the torch trigger
P is the potentiometer for controlling the current.
9.1
REMOTE
CONTROL
WELDING CURRENT
With remote connector 16 in Fig. 1, it is possible to
adjust the current near to the point where the
welding is being carried out. To do so, it is
necessary
to
create
potentiometer P, shown in figure 6. The value of the
potentiometer is not a critical factor: between
2.2kOhm and 10kOhm 1/2W can be used.
Turn the potentiometer and select the welding
current in a range between zero and the set value.
Pressing button 1 in fig.1 activates this function
remotely.
The maximum settable current is that previously set
using the encoder 12 in fig.1.
To set a new maximum current, deactivate the
remote function (1 in fig.1) and reset a new end-of-
scale welding value using the encoder 12 in fig.1.
This procedure is designed to prevent variations in
the remote end-of-scale value caused by the
encoder being touched by accident.

10. CONNECTING THE OUT-PUTS

Connection of the welding cables occurs via a
Dinse quick-connect system with appropriate
connectors.
Fig.6
OF
THE
a
connection
with
11. CONNECTING THE GAS CYLINDER
AND THE GAS REGULATOR
For TIG and MIG welding only. For MMA welding,
skip this paragraph entirely.
1
2
4
5
3
1. Connect the pressure regulator (2) to the cylin-
der (3). Make sure the regulator is suitable for the
cylinder pressure. Attach the connector nut (6) of
the regulator (2) to the cylinder (3). (Do not screw
too tightly; excessive force could damage the valve
(1) of the cylinder (3).)
2. Connect the gas tube (4) to the regulator (2) and
secure with a cable tie (5).
3. Make sure that the gas tube is connected to the
welder correctly.
4. Open the valve (1) of the cylinder (3). Press the
torch trigger and check the gas is flowing correctly. To
carry out this operation release the clutch of the motor.
Warning: Cylinders contain high-pressure gas;
handle with extreme care. Inappropriate handling
and use could cause serious accidents. Never
stack the cylinders or expose to excessive heat,
flames or sparks. Do not bash the cylinders
together. Contact your supplier for further informa-
tion on the use and maintenance of the cylinders.
Warning: Never use damaged cylinders: in this
case, advise your supplier immediately.
12. ORDINARY MACHINE
MAINTENANCE
Every three months periodically remove dust from
the suction nozzle using compressed air. Always
direct the air from the inside towards the outside of
the machine to avoid blowing dirt inside the welder.
When carrying out this operation, always make sure
the machine is not connected to the power supply.
6
1
5
2
3
Fig.7
9

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