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XTI 200 AC/DC INVERTER – USER INFORMATION
WARNING
Operation and maintenance of arc welding equipment can be
dangerous and hazardous to your health.
To prevent possible injury, read, understand and follow all
warnings, safety precautions and instructions before using the
equipment
GASES AND FUMES
Gases and fumes produced during the arc welding/cutting
process can be dangerous and hazardous to your health.
Keep all fumes and gases from the breathing area.
Keep your head out of the welding fume plume.
Use an air-supplied respirator if ventilation is not adequate to
remove all fumes and gases.
The kinds of fumes and gases from the arc welding/cutting
depend on the kind of metal being used, coatings on the
metal, and the different processes. You must be careful when
cutting or welding any metals which may contain one or more
of the following:
Antimony, Chromium, Mercury, Arsenic, Cobalt, Nickel,
Barium, Copper, Selenium, Beryllium, Lead, Silver, Cadmium,
Manganese, Vanadium
Always read the safety data sheets (SDS) that should be
supplied with the material you are us ing. These SDS will give
you information regarding the kind and volume of fumes and
gases that may be dangerous to your health.
Use special equipment, such as water or down draft
welding/cutting tables, to capture fumes and gases.
Do not use the welding torch in an area where combustible or
explosive gases or materials are located.
Phosgene, a toxic gas, is generated from the vapours of
chlorinated solvents and cleansers. Remove all sources of
these vapours.
ELECTRIC SHOCK
Electric shock can injure or kill. The arc welding process uses
high voltage electrical energy. This electric energy can c ause
severe or fatal shock to the operator or others in the
workplace.
Never touch any parts that are electrically “live”
Wear dry gloves and clothing. Insulate you rself from the work
piece or other parts of the welding circuit.
Repair or replace all worn or damaged parts.
Extra care must be taken when the workplace is moist or
damp.
Disconnect power source before performing any service or
repairs.
FIRE AND EXPLOSION
Fire and explosion can be caused by hot slag, sparks, or the
arc weld.
Be sure there is no combustible or flammable material in the
workplace. Any material that cannot be removed must be
protected.
Ventilate all flammable or explosive vapours from the
workplace.
Do not cut or weld on containers that may have held
combustibles.
Consult the site safety officer before working in areas where
fire hazards exist.
Do not cut aluminium alloys underwater or on a water table
unless the hydrogen gas can be eliminated or dissipated.
Trapped hydrogen gas that is ignited will cause an explosion.
NOISE
Noise can cause permanent hearing loss. Arc welding/cutting
processes can cause noise levels to exceed safe limits. You
must protect your ears from loud noise to prevent permanent
loss of hearing.
To protect your hearing from loud noise, wear protective ear
plugs and/or ear muffs. Protect others in the workplace.
Noise levels should be measured to be sure the decibels
(sound) do not exceed safe levels.
ARC WELDING RAYS
Arc welding/cutting rays can injure your eyes and burn your
skin. The arc welding/cutting process produces very bright
ultra violet and infra red light. These arc rays will damage your
eyes and burn your skin if you are not properly protected.
To protect your eyes, always wear a welding helmet or shield.
Also always wear safety glasses with side s hields, goggles or
other protective eye wear.
Wear welding gloves and suitable clothing to protect your skin
from the arc rays and sparks.
Keep helmet and safety glasses in good condition. Replace
lenses when cracked, chipped or dirty.
Protect others in the work area from the arc rays. Use
protective booths, screens or shields.
GENERAL DESCRIPTION
This welding machine is manufactured using advanced
inverter technology. The input voltage is rectified to DC and
then inverted to high frequency AC voltage. This allo ws the
use of a much smaller transformer and so allowing weight
saving and improved power efficiency.
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INSTALLATION
LOCATION
Be sure to locate the machine according to the following
guidelines:
In areas, free from moisture and dust ambient temperature
between 0
In areas, free from oil, steam and corrosive gases.
In areas, not subjected to abnormal vibration or shock.
In areas not exposed to direct sunlight or rain.
Place at a distance of 12” (304.79mm) or more from wall s or
similar that could restrict natural airflow for cooling.
CONNECTION OF POWER SUPPLY CABLE
Warning:
Parweld advises that this equipment be electrically conne cted
by a qualified electrician.
Connect the power supply cable to the required voltage. The
primary cable should be connected to the correct size of
socket to avoid arcing or over heating. Ensure the power
supply is sufficiently rated to match the machines maximum
output (refer to specification table on machine).
Operate the welding power source from a single-ph ase 50/60
Hz, ac power supply. The input voltage must match one of the
electrical input voltages shown on the input data label on the
unit nameplate. The XTI200 AC/DC machine should only be
used on 230v supply. Refer to the specifications table for
voltage tolerances.
Connect the end of earth (green) conductor to a suitable
earth. Use a grounding method that complies with all
applicable electrical regulations
c
degrees to 40 c degrees.
Explanation of controls
123456 7 8
Peak
Background
Gas
Current
Pre-Flow
FAULT
V
Amps
9
1
V
O
10 11 12 13 14 15 16 17
0100
A
Arc
Force
fequency
0200
A05S
f
Pulse
Down
Current
slope
10 90
010
%
S
tt1
+
%
t2
-
Pulse
time
Post
Cleaning
Flow
2T
4T
1) Vow voltage light. Indicates when the input power is
under voltage.
2) Fault light This indicates a fault or over tem perature
condition with the machine refer to the fault finding
section for further information.
3) Gas Pre-flow for adjustment of the pre flow of gas
after the trigger is activated before the arc strikes.
Adjustable from 0 to 2 seconds.
4) Output power control for adjustment of the power
out put of the machine in TIG or MMA mode.
5) Background Current Adjustment of the base or
background current level when in Pulse TIG mode.
6) Down slope time. Adjustment of the time taken to
reduce the welding current form the peak value to
zero at the end of the weld cycle. Adjustable from 0
to 10 seconds.
7) AC/DC output selector. Switches the machines
output from AC to DC depending on the
requirements of the welding process.
8) 2T 4T selector switch. Selects the trigger logic to be
used in TIG welding mode. 2T requires the trigger to
be pressed and held closed for the whole welding
cycle releasing the trigger will start the down slope. I
4T position the trigger is pressed briefly to start the
process and briefly again to stop the process so
offering greater operator comfort for longer welding
cycles.
9) Digital display. Displays the peak current output of
the machine in all welding modes.
10) ON OFF Switch for switching on or off the mains
supply to the machine. Note in MMA mode the output
of the machine is permanently on unless the on/off
switch is in the off position
11) Arc force adjustment. Provides adjustment of the
arc characteristic in MMA modes. Increasing the arc
force means the machine will compensate for
fluctuations in arc voltage and increase current to
maintain a stable penetrating arc. Low arc force will
give a softer arc.
12) Pulse Frequency. When in DC TIG Pulse mode,
allows adjustment of the pulse frequency of bet ween
0.5 and 300 Hz.
13) Pulse time. This adjusts the time period when the
pulse is at maximum and is a percentage of the
pulse frequency selected.
14) Cleaning. When in AC TIG mode allows adjustment
of the percentage of electrode positive and electrode
negative time so allowing adjustment of the
percentage of heating and cleaning depending upon
the material being welded. Minimum is 20% and
maximum is 80%
15) Post gas time This controls the time of the post flow
gas after the welding current has switched off and is
adjustable between 0 ands 10 seconds.