INSTALLATION
Environment
These units are designed for use in
environments with increased hazard of electric
shock.
A. Examples of environments with increased
hazard of electric shock are:
1.
In locations in which freedom of movement
is restricted, so that the operator is forced
to perform the work in a cramped (kneeling,
sitting or lying) position with physical
contact with conductive parts.
2.
In locations which are fully or partially
limited by conductive elements, and in
which there is a high risk of unavoidable or
accidental contact by the operator.
3.
In wet or damp hot locations where humidity
or perspiration considerable reduces the
skin resistance of the human body and the
insulation properties of accessories.
B. Environments with increased hazard of
electric shock do not include places where
electrically conductive parts in the near
vicinity of the operator, which can cause
increased hazard, have been insulated.
Location
This machine can operate in harsh
environments. However, it is important that
simple preventative measures are followed to
assure long life and reliable operation:
•
This machine must be located where there
is free circulation of clean air without
restrictions for air movement to and from
the air vents. Do not cover the machine with
paper, cloth or rags when switched on.
•
Dirt and dust that can be drawn into the
machine should be kept to a minimum.
•
This machine has a protection rating of
IP21S. Keep it dry and do not place it on
wet ground or in puddles. Do not use in wet
or damp locations. Store indoors.
•
Locate the machine away from radio
controlled machinery. Normal operation may
adversely affect the operation of nearby
radio controlled machinery, which may
result in injury or equipment damage.
Read the section on electromagnetic
compatibility in this manual.
•
Do not operate in areas with an ambient
temperature greater than 40°C.
Tilting
Place the machine directly on a secure, level
surface.
Do not place or operate this machine on a
surface with an incline greater than 15° from
horizontal. The machine may topple over if this
procedure is not followed.
Ventilation
Since the inhalation of welding fumes can be
harmful, ensure that the welding area is
effectively ventilated.
Machine Grounding And High Frequency
Interference Protection
The Capacitor Discharge Circuit used in the high
frequency generator, may cause many radio, TV
and electronic equipment interference problems.
These problems may be the result of radiated
interference.
Proper grounding methods can reduce or
eliminate radiated interference.
1.
Direct interference radiated from the welder.
2.
Direct interference radiated from the welding
leads.
3.
Direct interference radiated from feedback
into the power lines.
4.
Interference from re-radiation of “pickup” by
ungrounded metallic objects.
Keeping these contributing factors in mind,
installing equipment as per the following
instructions should minimize problems.
1.
Keep the welder power supply lines as short
as possible and enclose as much of them as
possible in rigid metallic conduit or
equivalent shielding for a distance of 50 feet
(15.2m). There should be good electrical
contact between this conduit and the welder
case ground. Both ends of the conduit
should be connected to a driven ground and
the entire length should be continuous.
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