Thermal Protection - Ribimex Ribitech Tech 140 Manual De Usuario

INSTALLATION
The installation must be made by trained personnel in compliance to the standard IEC 60974-9 and the current and local legislation. To
lift the machine it must be used the handle positioned on top of the product with the machine in OFF position.
The input voltage must match the voltage indicated on the technical plate located on the product.
Use the machine on electric system having supply features and power protection that are compatible with the current required for its
use. For more details see the information on the plate placed on the machine.
HOW USE IT
Warning: Use all precautions required in the safety general manual before operating the welder, reading carefully the risks linked to the
welding process.
Connect the plugs of the earth clamp and the electrode holder to the connectors of the machine (Fig 1, C and D) rotating the
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attack in order to ensure a good grip. Choose the polarity (forward or reverse) depending on the coating of the electrodes (for more
information see the information on the electrodes packaging).
Connect the earth clamp to the work piece to be welded trying to establish a good point of contact between the metal and the
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clamp, as close as possible to the area to be welded, insert the electrode into the electrode holder.
Insert the power plug into the power outlet and turn on the welding machine by pressing the switch (Fig 1, E) to the ON position.
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Select the welding current (FIG 1, A) as a function of the type of electrode selected (Tab. 1).
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Start the welding operation using all the necessary protections for the security.
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When welding is completed, turn off the machine and release the electrode from the electrode holder
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THERMAL PROTECTION

The duty cycle is the fraction or percentage of a ten-minute cycle that a power source may use without overheating. For example, a
welding machine with 150 Amps - 30% duty cycle can weld continuously at 150 amps for 3 minutes, and then must cool down during
the remaining 7 minutes to prevent overheating, with the ambient temperature of 40° C. Use the machine with the proper duty cycle
according to the selected welding current allows to prevent overheating. If the machine is used for a hard duty cycle, a safety device will
protect the machine from overheating.
If the machine is used for hard work cycle, the thermal protection device will protect the machine from over heating. The yellow LED ON
indicates that the thermal protection is on. It is possible to start welding again once the LED is off.
MAINTENANCE
The all maintenance services must be done from qualified personnel in compliance to the norm (IEC 60974-4).
Anomalies
The device is not delivering current
and the yellow indicator LED of
thermal
protection lights up.
The device is on but it is not
delivering current.
Your unit does not weld correctly.
WARNING: This equipment does not comply with IEC 61000-3-12. If it is connected to a public low voltage system, it is the
responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that
the equipment may be connected
Causes
The welder thermal
protection has turned on.
The cable of the earth
clamp or electrode holder
is not connected to the
welder.
Polarity error
Remedies
Wait for the end of the cooling
time, around 2 minutes. The
indicator led turns off.
Turn off the machine and check the
connections.
. Check the polarity advised on the
electrodes packaging.
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