Zavarivanje Ltd.
User Manual: WALTER TIG2000
page 2 of 24
This user manual applies to all the welders from Walter TIG 2000 Series:
200/220/250/280/300/350/450 Ampere DC TIG and AC/DC TIG welders.
IMPORTANT:
WALTER TIG 2000 AC/DC and DC welders operate in DCEN (Direct
Current Electrode Negative) polarity. The correct way to connect TIG torch
and earth clamp is as follows:
1. TIG torch is connected to the “-“ output of the welder;
2. cable with earth clamp is connected to the “+”output of the welder.
The protective shielding gas (argon, helium, or mix), is connected to the
electro-valve input on the back plate of the welder. This valve does not control
the quantity of flow of the gas, or its pressure, only its stopping and starting.
Therefore, it is necessary to connect the gas that has a reduced pressure (5 to 7
bars).
If the welder is heated during operation, its over temperature protection will
activate itself, which will be indicated on the welder LCD screen. During this
time, the welding will be restricted, and the welder will measure the
temperature continuously, allowing the operator to weld again, once the
electronic components are cooled off.
Walter TIG welder enclosures are manufactured in two types of mechanical
protection ratings:
- IP21 (meaning that hazardous parts are protected from objects the size
greater than 12.5mm, such as fingers and similar, and dripping water, i.e.
vertically falling drops, shall have no harmful effect). Therefore welders in
IP21 enclosures are not suitable for operation in conditions of rain and
splashing water.
- IP23 (meaning that hazardous parts are protected from objects the size
greater than 12.5mm, such as fingers and similar, and water falling as a spray
at any angle up to 60° from the vertical shall have no harmful effect)
Therefore welders with IP23 enclosures can operate in rain conditions, where
water drops at angles less than 60
°
from the vertical.
The manufacturer is not responsible for any damage caused by failure to earth
the welder. The manufacturer declines all responsibility for damage to persons
or things deriving from inobservance of the safety regulations.
