Strata EZIARC 165 User manual

EZIARC 165/205
OPERATING INSTRUCTIONS
MMA (STICK) WELDERS
www.strata.co.nz
230V 50HZ
SINGLE
PHASE
IGBT
INVERTER
TECHNOLOGY
INTELLIGENT
PROTECTION
SYSTEM
DIRECT
CURRENT
OUTPUT
SPIKE/
GENERATOR
SAFE
IP23 CORROSION
& SALT SPRAY
RESISTANT
LIFT TIG
(OPTIONAL
TORCH)
CONSTANT
CURRENT
IMPORTANT!
To qualify for full 24 month warranty, you must register within 30 days of purchase. See inside for details.
Read these Operang Instrucons Completely before aempng to use this machine. Save this manual and
keep it handy for quick reference. Pay parcular aenon to the safety instrucons we have provided for
your protecon. Contact your distributor if you do not fully understand anything in this manual.

2www.strata.co.nz
EZIARC 165 • EZIARC 205
Congratulations on your new Strata product!
The Strata range from Euroquip uses latest technology design and engineering to produce
welding products that combine market leading value and features with durability. Designed
for discerning operators who seek professional results and product quality without the price
tag of a full professional setup. Design emphasis is placed on simple, functional design
and operation. Strata product is subject to stringent quality control and designed and
manufactured to NZ & Australian standards.
Common use of Strata products include:
• Light Engineering
• Automotive
• Home/hobby Engineering
• Farming
• Industrial Maintenance & Repairs
For industrial welding solutions, check out the Strata range from Euroquip:
www.strata.co.nz
Euroquip is a market leading provider of innovative power equipment solutions to a wide
range of industries across New Zealand and Australia. Key product categories are; welding
equipment, air compressors, power generators and cleaning equipment.
Euroquip’s slogan is ‘empowering industries’, find out more about the advantage Euroquip
brings at www.euroquip.co.nz.
Providing exceptional product support is a key component of Euroquip’s market leading
customer advantage focus. As part of this program, it is required for all products to be
registered with Euroquip to qualify for product support. Products not registered with Euroquip
are supported by a base 12 month warranty only. Spare parts and technical support will not
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dealer has not already registered your product, please register it online at www.euroquip.
co.nz. To request a physical registration form, please download one at www.euroquip.co.nz
under the ‘Contact Us’ tab.

4
ADVANCEARC 160 • ADVANCEARC 200
EZIARC 165 • EZIARC 205
MMA(STICK) WELDERS
The Advance Series of MMA (Stick) Welders offer the latest IGBT and PFC (Power Factor Correction)
technology for smart operators. Increased reliability, performance for harsh and demanding
voltage technology, giving you piece of mind when operating on generators or long extension cords.
• IGBT Inverter technology for smooth & stable welding output
• Damage resistant industrial casing with front panel protection
• Microprocessor control system for superior and dynamic arc
characteristics
• Lightweight & compact design, ideal for portable applications
• Automatic arc force, hot start & anti-stick for greater control
and ease of use
• Lift TIG welding operation for precision in aesthetically important
welding jobs (torch optional)
• High quality & over specified electronic components for
durability & reliability
EZIARC 165
DIMENSIONS: WEIGHT: INPUT POWER MAX. INPUT GENERATOR MMA CURRENT MMAO/C DUTY CYCLE: STANDARDS:MMA ROD MAX WELD
SUPPLY: CURRENT: CAPACITY: OUTPUT: VOLTAGE: SIZE: THICKNESS
390 x 146 x 278mm 2.6kg 230V AC 15A36A 8.5KVA 10A-160A 60%@114A EN60974-1:2012 1.6 - 4.0mm 8mm
50Hz
EZIARC 205
DIMENSIONS: WEIGHT: INPUT POWER MAX. INPUT GENERATOR MMA CURRENT MMAO/C DUTY CYCLE: STANDARDS:MMA ROD MAX WELD
SUPPLY: CURRENT: CAPACITY: OUTPUT: VOLTAGE: SIZE: THICKNESS
410 x 146 x 278mm 2.8kg 230V AC 15A46A 11KVA 10A-200A 70V 60%@130A EN60974-1:2012 1.6- 5.0mm 10mm
50Hz
70V
230V 50HZ
SINGLE
PHASE
IGBT
INVERTER
TECHNOLOGY
INTELLIGENT
PROTECTION
SYSTEM
DIRECT
CURRENT
OUTPUT
SPIKE/
GENERATOR
SAFE
IP23 CORROSION
& SALT SPRAY
RESISTANT
LIFT TIG
(OPTIONAL
TORCH)
CONSTANT
CURRENT
www.strata.co.nz

4
www.strata.co.nz
EZIARC 165 • EZIARC 205
Contents
Know Your Machine..........................................................5
Quick Start Guide..............................................................6
Available Parts & Accessories...........................................7
Wiring Diagram.................................................................8
Care & Maintenance..........................................................9
Electrodes.........................................................................9
Effects of MMA Welding Various Metals...........................10
Basic MMA Welding Guide..............................................11
Welding Techniques........................................................12
Other Knowledge & Resources........................................15
Troubleshooting..............................................................16
Safety..............................................................................18
Warranty.........................................................................23

5
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EZIARC 165 • EZIARC 205
*Denotes more detailed explanation of function to follow.
1. Power Indicator. Lights when input power
connected and machine switched on
2. Error/ Overload Indicator*
3. Welding Current Control Knob
5. Negative (-) Welding Power Output
Connection Socket
4. Positive (+) Welding Power Output
Connection Socket
6. Welding Output Mode Switch.
Sets Power Source in MMA or Lift Tig Mode*
7. Digital Current Display Meter
1
2
3
4
6
5
7
Know Your Machine
5
www.strata.co.nz
EZIARC 165 • EZIARC 205
Know Your Machine
*Denotes more detailed explanation of function to follow.
1. Power Indicator. Lights when input power
connected and machine switched on
2. Error/ Overload Indicator*
3. Welding Current Control Knob
4. Positive (+) Welding Power Output
Connection Socket
5. Negative (-) Welding Power Output
Connection Socket
6. Welding Output Mode Switch.
Sets Power Source in MMA or Lift Tig Mode*
7. Digital Current Display Meter
1
2
3
4
6
5
7

6www.strata.co.nz
EZIARC 165 • EZIARC 205
Further Controls Explained
Overload/ Error Indicator
Lights when over voltage, over current or electrical
overheating (due to exceeding duty cycle) is detected
and protection is activated.
When protection is activated, welding output will be
disabled until the safety system senses the overload
has reduced sufficiently and indicator lamp goes out.
May also trigger if machine experiences an internal
power circuit failure.
Lift Tig Mode
Lift TIG is an arc ignition system for basic TIG weld-
ing that removes the need to ‘scratch’ start or strike
the tungsten on the work piece to start the arc, which
can have a negative effect on the weld quality due to
tungsten contamination.
Lift arc starting works by gently touching the tungsten
on the work piece and then lifting it off. The control
circuit will sense when the tungsten is removed from
the work piece and send a pulse of electricity through
the torch that will cause the TIG arc to initiate.
Tips & Tricks
Duty Cycle Rating
Welding duty cycle is the percentage of actual weld-
ing time that can occur in a ten minute cycle. E.g.
20% at 160 amps - this means the welder can weld at
160 amps for 2 minutes and then the unit will need to
be rested for 8 minutes.
All duty cycle ratings are based on an ambient air
temperature of 40°C with 50% humidity, which is the
international standard for such a rating. In an envi-
ronment with temperatures exceeding 40°C, the duty
cycle will be less than stated. In ambient temperature
less than 40°C, duty cycle performance will be higher.

7
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EZIARC 165 • EZIARC 205
Electrical Connection
- The EZIARC 165 is designed to operate on a
15A 230V AC power supply.
- The EZIARC 205 is designed to operate on a
15A 230V AC power supply.
It is recom to use the Euroquip industrial
duty 15A extension lead, part number; 16895.
Operating Environment
Adequate ventilation is required to provide proper
cooling for the EZIARC 165/205. Ensure that
the machine is placed on a stable level surface where
clean cool air can easily flow through the unit. The
EZIARC165/205 has electrical components
and control circuit boards which may be damaged
by excessive dust and dirt, so a clean operating
environ-ment is important.
Basic Operation
1. ARC/ MMA Welding Operation
1.1 Connect the earth cable quick connector to the
negative welding power output socket (5) Con-
nect the earth clamp to the work piece. Contact
with the work piece must be firm. Contact with
clean, bare metal, with no corrosion, paint or
scale at the contact point.
1.2 Insert an electrode into the electrode holder and
connect the electrode holder and work lead to
the positive welding power output socket (4).
Quick Start Guide - Welder Installation
Note: This polarity connection configuration is valid for most
GP (General Purpose) MMA electrodes. There are variances to
this. If in doubt, check the electrode specifications or consult the
electrode manufacturer.
1.3 Connect the machine to suitable mains power
using the mains input power lead. Switch the
mains power switch to ‘on’ to power up the ma-
chine. Select MMA welding mode (7) using the
button (8).
1.4 Select the required output current using the
current control knob (3). You are now ready to
weld!
2. Lift TIG Operation
Note: Lift TIG operation requires an optional valve control TIG
torch, and argon gas cylinder.
2.1 Connect the earth cable quick connector to the
positive welding power output socket (4). Con-
nect the earth clamp to the work piece. Contact
with the work piece must be firm contact with
clean, bare metal, with no corrosion, paint or
scale at the contact point.
2.2 Insert TIG torch power connection into the nega-
tive welding power output socket (4). Connect
valve TIG torch gas line to the regulator, ensur-
ing all connections are tight.
2.3 Open gas cylinder valve and adjust regulator,
flow should be between 5-10 l/min depending
on application. Re-check regulator flow pressure
with torch valve open as static gas flow setting
may drop once gas is flowing.
2.4 Connect the machine to suitable mains power
using the mains input power lead. Switch the
mains power switch to ‘on’ to power up the ma-
chine. Select Lift TIG welding mode (6) using the
button (8).
2.5 Select the required output current using the cur-
rent control knob (3). You are now ready to
weld!
mended

8www.strata.co.nz
EZIARC 165 • EZIARC 205
Flat Position,
Down Hand Butt Weld
(Fig 1-11)
Flat Position,
Gravity Fillet Weld
(Fig 1-12)
Horizontal Position,
Butt Weld
(Fig 1-13)
Horizontal-Vertical
(HV) Position
(Fig 1-14)
Vertical Position,
Butt Weld
(Fig 1-15)
Vertical Position,
Fillet Weld
(Fig 1-16)
Overhead Position,
Butt Weld
(Fig 1-17)
Overhead Position,
Fillet Weld
(Fig 1-18)
Joint Preparations
In many cases, it will be possible to weld steel sec-
tions without any special preparation. For heavier
sections and for repair work on castings, etc., it will
be necessary to cut or grind an angle between the
pieces being joined to ensure proper penetration of
the weld metal and to produce sound joints.
In general, surfaces being welded should be clean
and free of rust, scale, dirt, grease, etc. Slag should
be removed from oxy-cut surfaces. Typical joint de-
signs are shown in Figure 1-19.
Open Square Butt Joint (Fig
1-19a)
Gap varies from1.6mm (1/16”)
to 4.8mm (3/16”) depending on plate thickness
Single Vee Butt Joint
(Fig 1-19b)
Not less than 45°
Single Vee Butt Joint (Fig
1-19c)
Not less than 70°
1.6mm (1/16”) max.
1.6mm (1/16”)
Double Vee Butt Joint (Fig
1-19d)
Not less than 70° 1.6mm (1/16”) max.
1.6mm (1/16”)
Basic MMA Welding Guide

9
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EZIARC 165 • EZIARC 205
Lap Joint (Fig 1-19e)
Fillet Joint (Fig 1-19f)
Corner Weld
(Fig 1-19g)
Tee Joints
(Fig 1-19h)
Edge Joint
(Fig 1-19i)
Plug Welds
(Fig 1-19j)
MMAWelding Techniques
A Word for Beginners
For those who have not yet done any welding, the
simplest way to commence is to run beads on a piece
of scrap plate. Use mild steel plate about 6.0mm thick
and a 3.2mm electrode.
Clean any paint, loose scale or grease off the plate
and set it firmly on the work bench so that welding
can be carried out in the down hand position. Make
sure that the Work Lead/Clamp is making good elec-
trical contact with the work, either directly or through
the work table. For light gauge material, always clamp
the work lead directly to the job, otherwise a poor cir-
cuit will probably result.
The Welder
Place yourself in a comfortable position before begin-
ning to weld. Get a seat of suitable height and do as
much work as possible sitting down. Don’t hold your
body tense. A taut attitude of mind and a tensed body
will soon make you feel tired. Relax and you will find
that the job becomes much easier. You can add much
to your peace of mind by wearing a leather apron and
gauntlets. You won’t be worrying then about being
burnt or sparks setting alight to your clothes.
Place the work so that the direction of welding is
across, rather than to or from, your body. The elec-
trode holder lead should be clear of any obstruction
so that you can move your arm freely along as the
electrode burns down. If the lead is slung over your
shoulder, it allows greater freedom of movement and
takes a lot of weight off your hand. Be sure the insula-
tion on your cable and electrode holder is not faulty;
otherwise you are risking an electric shock.
Striking the Arc
Practice this on a piece of scrap plate before going on
to more exacting work. You may at first experience
difficulty due to the tip of the electrode “sticking” to
the work piece. This is caused by making too heavy
a contact with the work and failing to withdraw the
electrode quickly enough. A low amperage will accen-
tuate it. This freezing-on of the tip may be overcome

10 www.strata.co.nz
EZIARC 165 • EZIARC 205
20o
1.6mm (1/16”)
Striking an Arc
(Fig 1-20)
Arc Length
The securing of an arc length necessary to produce a
neat weld soon becomes almost automatic. You will
find that a long arc produces more heat.
A very long arc produces a crackling or spluttering
noise and the weld metal comes across in large, ir-
regular blobs. The weld bead is flattened and spatter
increases. A short arc is essential if a high quality
weld is to be obtained although if it is too short there
is the danger of it being blanketed by slag and the
electrode tip being solidified in. If this should happen,
give the electrode a quick twist back over the weld to
detach it. Contact or “touch-weld” electrodes such as
E7014 Stick electrodes do not stick in this way, and
make welding much easier.
Rate of Travel
After the arc is struck, your next concern is to main-
tain it, and this requires moving the electrode tip to-
wards the molten pool at the same rate as it is melting
away. At the same time, the electrode has to move
along the plate to form a bead.
Making Welded Joints
Having attained some skill in the handling of an elec-
trode, you will be ready to go on to make up welded
joints.
A. Butt Welds
Set up two plates with their edges parallel, as shown
in Figure 1-21, allowing 1.6mm to 2.4mm gap be-
tween them and tack weld at both ends. This is to
prevent contraction stresses from the cooling weld
metal pulling the plates out of alignment.
Plates thicker than 6.0mm should have their mating
edges bevelled to form a 70º to 90º included angle.
This allows full penetration of the weld metal to the
root. Using a 3.2mm E7014 Stick electrode at 100
amps, deposit a run of weld metal on the bottom of
the joint.
Do not weave the electrode, but maintain a steady
rate of travel along the joint sufficient to produce a
well-formed bead. At first you may notice a tendency
for undercut to form, but keeping the arc length short,
the angle of the electrode at about 20º from vertical,
and the rate of travel not too fast, will help eliminate
this.
Tack Weld
Butt Weld
(Fig 1-21)
Electrode
20o- 30o
Tack Weld
by scratching the electrode along the plate surface
in the same way as a match is struck. As soon as
the arc is established, maintain a 1.6mm to 3.2mm
gap between the burning electrode end and the par-
ent metal. Draw the electrode slowly along as it melts
down.
Another difficulty you may meet is the tendency, af-
ter the arc is struck, to withdraw the electrode so far
that the arc is broken again. A little practice will soon
remedy both of these faults.
The electrode is directed at the weld pool at about 20º
from the vertical. The rate of travel has to be adjusted
so that a well-formed bead is produced.
If the travel is too fast, the bead will be narrow and
strung out and may even be broken up into individual
globules. If the travel is too slow, the weld metal piles
up and the bead will be too large.

11
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EZIARC 165 • EZIARC 205
Weld Build Up Sequence
(Fig 1-22)
Heavy plate will require several runs to complete the
joint. After completing the first run, chip the slag out
and clean the weld with a wire brush. It is important
to do this to prevent slag being trapped by the second
run. Subsequent runs are then deposited using either
a weave technique or single beads laid down
in the sequence shown in Figure 1-22. The width of
weave should not be more than three times the core
wire diameter of the electrode.
When the joint is completely filled, the back is either
machined, ground or gouged out to remove slag
which may be trapped in the root, and to prepare a
suitable joint for depositing the backing run. If a back-
ing bar is used, it is not usually necessary to remove
this, since it serves a similar purpose to the backing
run in securing proper fusion at the root of the weld.
B. Fillet Welds
These are welds of approximately triangular cross-
section made by depositing metal in the corner of two
faces meeting at right angles. Refer to Figure 1-14,
1-23 and 1-24.
A piece of angle iron is a suitable specimen with which
to begin, or two lengths of strip steel may be tacked
together at right angles. Using a 3.2mm E7014 Stick
electrode at 100 amps, position angle iron with one
leg horizontal and the other vertical. This is known as
a horizontal-vertical (HV) fillet.
Strike the arc and immediately bring the electrode to
a position perpendicular to the line of the fillet and
about 45º from the vertical. Some electrodes require
being sloped about 20º away from the perpendicular
position to prevent slag from running ahead of the
weld. Refer to Figure 1-23.
Do not attempt to build up much larger than 6.4mm
width with a 3.2mm electrode, otherwise the weld
metal tends to sag towards the base, and undercut
forms on the vertical leg. Multi-runs can be made as
shown in Figure 1-24. Weaving in HV fillet welds is
undesirable.
Electrode Position for HV
Fillet Weld (Fig 1-23)
The electrode needs to be moved along fast enough
to prevent the slag pool from getting ahead of the arc.
To complete the joint in thin plate, turn the job over,
clean the slag out of the back and deposit a similar
weld.
C.Vertical Welds
1.Vertical Up
Tack weld a three feet length of angle iron to your
work bench in an upright position. Use a 3.2mm
E7014 Stick electrode and set the current at 100
amps. Make yourself comfortable on a seat in front of
the job and strike the arc in the corner of the fillet. The
electrode needs to be about 10º from the horizontal to
enable a good bead to be deposited. Refer Fig. 1-25.
Multi-Runs in HV Fillet Weld
(Fig 1-24)
Single Run Vertical Fillet Weld
(Fig 1-25)

12 www.strata.co.nz
EZIARC 165 • EZIARC 205
Weaving motion for
second and subsequent
runs
Pause at edge
of weave
Multi Run Vertical Fillet Weld (Fig
1-26)
Examples of Vertical Fillet Welds
(Fig 1-27)
Pause at edge of weave
allows weld metal to build
up and eliminates undercut
Note: Weld contour
when insufficient pause
at edge of weave
CORRECT INCORRECT
2.Vertical Down
The E7014 Stick electrode makes welding in this posi-
tion particularly easy. Use a 3.2mm electrode at 100
amps. The tip of the electrode is held in light contact
with the work and the speed of downward travel is
regulated so that the tip of the electrode just keeps
ahead of the slag. The electrode should point up-
wards at an angle of about 45º.
Tilted 10oin
line of travel
Overhead Fillet Weld
(Fig 1-28)
Angle tacked to pipe
45oto plate
Use a short arc, and do not attempt to weave on the
first run. When the first run has been completed de-
slag the weld deposit and begin the second run at the
bottom. This time a slight weaving motion is neces-
sary to cover the first run and obtain good fusion at
the edges.
At the completion of each side motion, pause for a
moment to allow weld metal to build up at the edges,
otherwise undercut will form and too much metal
will accumulate in the centre of the weld. Figure 1-26
illustrates multi-run technique and Figure 1-27 shows
the effects of pausing at the edge of weave and of
weaving too rapidly.
3. Overhead Welds
Apart from the rather awkward position necessary,
overhead welding is not much more difficult that
down hand welding.
Set up a specimen for overhead welding by first tack-
ing a length of angle iron at right angles to another
piece of angle iron or a length of waste pipe. Then
tack this to the work bench or hold in a vice so that
the specimen is positioned in the overhead position
as shown in the sketch.
The electrode is held at 45º to the horizontal and tilted
10º in the line of travel (Figure 1-28). The tip of the
electrode may be touched lightly on the metal, which
helps to give a steady run. A weave technique is not
advisable for overhead fillet welds.
Use a 3.2mm E6013 Stick electrode at 100 amps, and
deposit the first run by simply drawing the electrode
along at a steady rate. You will notice that the weld
deposit is rather convex, due to the effect of gravity
before the metal freezes.

EZIARC 165 • EZIARC 205
www.strata.co.nz
MILD STEEL :
E6011 - This electrode is used for all-position welding or
for welding on rusty, dirty, less-than- new metal. It has a
deep, penetrating arc and is often the first choice for repair
or maintenance work.
E6013 - This all-position electrode is used for welding
clean, new sheet metal. Its soft arc has minimal spatter,
moderate penetration and an easy-to-clean slag.
E7014 - All positional, ease to use electrode for use on
thicker steel than E6013. Especially suitable for sheet metal
lap joints, fillet welds and general purpose plate welding.
E7018 - A low-hydrogen, all-position electrode used when
quality is an issue or for hard-to-weld metals. It has the ca-
pability of producing more uniform weld metal, which has
better impact properties at low temperatures.
CAST IRON:
ENI-CL - Suitable for joining all cast irons except white
cast iron.
STAINLESS STEEL:
E318L-16 - High corrosion resistances. Ideal for dairy
work etc.
Electrodes for joining different metals
Electrodes
Size of Electrodes
The electrode size is determined by the thickness of
metals being joined and can also be governed by the
type of welding machine available. Small welding ma-
chines will only provide current (amperage) to run
smaller sized electrodes.
For thin sections, it is necessary to use smaller elec-
trodes otherwise the arc may burn holes through the
job. A little practice will soon establish the most suit-
able electrode for a given application.
Storage of Electrodes
Always store electrodes in a dry place and in their
original containers.
Electrode Polarity
Electrodes are generally connected to the electrode
holder with the electrode holder connected positive
polarity.
The work lead is connected to the negative polarity
and is connected to the work piece. If in doubt consult
the electrode data sheet.
Types of Electrodes
ARC Welding electrodes are classified into a number
of groups depending on their applications. There are
a great number of electrodes used for specialised in-
dustrial purposes which are not of particular interest
for everyday general work. These include some low
hydrogen types for high tensile steel, cellulose types
for welding large diameter pipes, etc. The range of
electrodes dealt with in this publication will cover the
vast majority of applications likely to be encountered;
are all easy to use.
13

14 www.strata.co.nz
EZIARC 165 • EZIARC 205
High Tensile and Alloy Steels
The two most prominent effects of welding these
steels are the formation of a hardened zone in the
weld area, and, if suitable precautions are not taken,
the occurrence in this zone of under-bead cracks.
Hardened zone and underbead cracks in the weld area
may be reduced by using the correct electrodes, pre-
heating, using higher current settings, using larger
electrodes sizes, short runs for larger electrode de-
posits or tempering in a furnace.
Manganese Steels
The effect on manganese steel of slow cooling from
high temperatures causes embrittlement. For this
reason it is absolutely essential to keep manganese
steelcool during welding by quenching after each
Effects of MMA Welding Various Materials
Other Knowledge
& Resources
Please refer to the STRATA website
www.strata.co.nz and click on the video tab for
knowledgebase articles & operation videos.
Cast Iron
Most types of cast iron, except white iron, are weld-
able. White iron, because of its extreme brittleness,
generally cracks when attempts are made to weld it.
Trouble may also be experienced when welding
white-heart malleable, due to the porosity caused by
gas held in this type of iron.
Copper and Alloys
The most important factor is the high rate of heat
conductivity of copper, making pre-heating of heavy
sections necessary to give proper fusion of weld and
base metal.

15
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EZIARC 165 • EZIARC 205
Safety
Store and Retain this Manual
Retain this manual for the safety warnings and pre-
cautions, assembly, operating, inspection, mainte-
nance and cleaning procedures. Write the product’s
serial number into the NOTES section at the rear, and
keep this manual and the receipt in a safe and dry
place for future reference.
Important Safety Information
Failure to follow the warnings and instructions may
result in electric shock, fire, serious injury and/or
death. Save all warnings and instructions for future
reference.
This is the safety alert symbol to alert you to potential
personal injury hazards. Obey all safety messages that
follow this symbol to avoid possible injury or death.
DANGER! indicates a hazardous situation
which, if not avoided, will result in death or se-
rious injury.
WARNING! indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION, used with the safety alert symbol,
indicates a hazardous situation which, if not
avoided, could result in minor or moderate in-
jury.
NOTE, used to address practices not related to per-
sonal injury.
CAUTION, without the safety alert symbol, is used to
address practices not related to personal injury.
General Safety Warnings
1. Maintain labels and nameplates on the welder. These
carry important information. If unreadable or miss-
ing, contact Euroquip for a replacement.
2. Avoid unintentional starting. Make sure the welder
is setup correctly and you are prepared to begin work
before turning on the welder.
3. Unplug before performing maintenance.
Always unplug the welder from its electrical outlet
before performing any inspection, maintenance, or
cleaning procedures.
4. Never leave the welder unattended while ener-
gised. Turn power off before leaving the welder unat-
tended.
5. Do not touch live electrical parts. Wear dry, insulat-
ing gloves. Do not touch the electrode or the conduc-
tor tong with bare hands. Do not wear wet or
damaged gloves.
6. Protect yourself from electric shock. Do not use
the welder outdoors. Insulate yourself from the work
piece and the ground. Use non-flammable, dry insu-
lating material if possible, or use dry rubber mats,
dry wood or plywood, or other dry insulating mate-
rial large enough to cover the area of contact with the
work or the ground.
7.Avoid inhaling dust. Some dust created by power
sanding, sawing, grinding, drilling, cutting, welding
and other construction activities, contain chemicals
known to cause cancer, birth defects or other harm.
Your risk from these exposures varies, depending on
how often you do this type of work. To reduce your
exposure to these chemicals, work in a well-ventilated
area, and work with approved safety equipment, such
as dust masks that are specially designed to filter out
microscopic particles.
8. People with pacemakers should consult their
physician(s) before using this machine.
WARNING!
Electromagnetic fields in close proximity to a
heart pacemaker could cause interference, or
failure of the pacemaker. The use of a Welder is
NOT RECOMMENDED for pacemaker wearers.
Consult your doctor.
9. Ensure that the unit is placed on a stable location
before use.

16 www.strata.co.nz
EZIARC 165 • EZIARC 205
Arc Rays can Burn Eyes and Skin
DANGER!
Arc rays from the welding process produce
intense heat and strong ultraviolet rays that
can burn eyes and skin.
1. Use a Welding Helmet or Welding Face Shield fit-
ted with a proper shade filter (refer AS 60974-
1, AS/NZS 1337.1 and AS/NZS 1338.1 Safety
Standards) to protect your face and eyes when
welding or watching. (See Filter Table on Page 20)
2. Wear approved safety glasses. Side shields are
recommended.
3. Use protective screens or barriers to protect
others from flash and glare; warn others not to
watch the arc.
4. Wear protective clothing made from durable,
flame-resistant material (wool and leather) and
foot safety protection.
5. Never wear contact lenses while welding.
Noise Can Damage Hearing
CAUTION!
Noise from some processes can damage hear-
ing. Use AS/NZS compliant ear plugs or ear
muffs if the noise level is high.
Work Environment Safety
DANGER!
Remove any combustible material from the
work area.
1. When possible, move the work to a location well
away from combustible materials. If relocation
is not possible, protect the combustibles with a
cover made of fire resistant material.
2. Remove or make safe all combustible materials
for a radius of 10 metres around the work area.
Use a fire resistant material to cover or block all
doorways, windows, cracks, and other openings.
3. Enclose the work area with portable fire resistant
screens. Protect combustible walls, ceilings,
floors, etc., from sparks and heat with fire re-
sistant covers.
4. If working on a metal wall, ceiling, etc., prevent
ignition of combustibles on the other side by
moving the combustibles to a safe location. If
relocation of combustibles is not possible, desig-
nate someone to serve as a fire watch, equipped
with a fire extinguisher, during the welding pro-
cess and well after the welding is completed.
5. Do not weld or cut on materials having a combus-
tible coating or combustible internal structure, as
in walls or ceilings, without an approved method
for eliminating the hazard.
6. After welding, make a thorough examination for
evidence of fire. Be aware that visible smoke or
flame may not be present for some time after
the fire has started. Do not weld or cut in atmos-
pheres containing dangerously reactive or flam-
mable gases, vapours, liquids, and dust. Provide
adequate ventilation in work areas to prevent accu-
mulation of flammable gases, vapours, and dust.
7. Do not apply heat to a container that has held
an unknown substance or a combustible mate-
rial whose contents, when heated, can produce
flammable or explosive vapours. Clean and purge
containers before applying heat. Vent closed con-
tainers, including castings, before preheating,
welding, or cutting.
Electricity Can Kill
DANGER!
Touching live electrical parts can cause fatal
shocks or severe burns. The electrode and work
circuit is electrically live whenever the output is
on.
The input power circuit and machine internal circuits
are also live when power is on. In semi-automatic or
automatic wire welding, the wire, wire reel, drive roll
housing, and all metal parts touching the welding wire
are electrically live. Incorrectly installed or improperly
grounded equipment is a hazard.
1. Do not touch live electrical parts.
2. Wear dry, hole-free insulating gloves and body
protection.
3. Insulate yourself from the work and the ground
using dry insulating mats or covers.

17
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EZIARC 165 • EZIARC 205
4. Disconnect input power before installing or ser-
vicing this equipment. Lock input power, discon-
nect switch open, or remove line fuses so power
cannot be turned on accidentally.
5. Properly install and ground this equipment ac-
cording to national, state, and local codes.
6. Turn off all equipment when not in use. Discon-
nect power to equipment if it will be left unat-
tended or out of service.
7. pidreveN.sredlohedortceledetalusniyllufesU
the holder in water to cool it or lay it down on the
ground or the work surface. Do not touch hold-
ers connected to two welding machines at the
same time or touch other people with the holder
or electrode.
8. Do not use worn, damaged, undersized, or poorly
spliced cables.
9. Do not wrap cables around your body.
10. Connect work piece to a good electrical ground.
11. Do not touch the electrode while in contact with
the work (ground) circuit.

18 www.strata.co.nz
EZIARC 165 • EZIARC 205
Fire & Explosive Risks
WARNING!
Sparks and spatter fly off from the welding arc.
The flying sparks and hot metal, weld spatter,
work piece, and hot equipment can cause fires
and burns.
Accidental contact of electrode or welding wire to
metal objects can cause sparks, overheating, or fire.
1. Protect yourself and others from flying sparks
and hot metal.
2. Do not weld where flying sparks can strike flam-
mable material.
3. Remove all flammables within 10m of the weld-
ing site.
4. Be alert that welding sparks and hot materials
from welding can easily go through small cracks
and openings to adjacent areas.
5. Watch for fire, and keep a fire extinguisher nearby.
6. Be aware that welding on a ceiling, floor, bulk-
head, or partition can cause fire on the hidden
side.
7. Do not weld on closed containers such as tanks
or drums.
8. Connect the work lead/clamp to the job as close
to the welding area as practical to prevent weld-
ing current from travelling long, possibly un-
known paths and causing electric shock and fire
hazards.
9. Do not use a welder to thaw frozen pipes.
10. Remove the stick electrode from the holder or cut
off the welding wire at the contact tip when not in
use.
Sparks & Hot Metal
WARNING!
Chipping and grinding causes flying metal, and
as welds cool they can throw off slag.
1. Wear an AS/NZS approved face shield or safety
goggles. Side shields are recommended.
2. Wear appropriate safety equipment to protect the
skin and body.
5. Work in a confined space only if it is well venti-
lated, or while wearing an air-supplied respirator.
Shielding ga es used for welding can displace air
causing injury or death. Be sure the breathing air
is safe.
6. Do not weld in locations near degreasing, clean-
ing, or spraying operations. The heat and rays
of the arc can react with vapours to form highly
toxic and irritating gases.
7. Do not weld on coated metals, such as galva-
nized, lead, or cadmium plated steel, unless the
coating is removed from the weld area, the area
is well ventilated, and if necessary, while wearing
an air- supplied respirator. The coatings and any
metals containing these elements can give off
toxic fumes if welded.
Fumes And Gases
WARNING!
Welding produces fumes and gases. Breathing
these fumes and gases can be hazardous to
your health.
1. Keep your head out of the fumes. Do not breathe
the fumes.
2. If inside, ventilate the area and/or use an exhaust
at the arc to remove welding fumes and gases.
3. If ventilation is poor, use an approved air-sup-
plied respirator.
4. Read the Safety Data Sheets (SDS) and the man-
ufacturer’s instruction for the metals, consuma-
bles, coatings, and cleaners.
12. Use only well-maintained equipment. Repair or
replace damaged parts as soon as practical.
13. In confined spaces or damp locations, do not use
a welder with AC output unless equipped with a
voltage reducer.
Arc rays from the welding process produce intense
heat and strong ultraviolet rays that can burn eyes
and skin. Use the following table to select the appro-
priate shade number for a Welding Helmet or Welding
Face Shield.

19
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EZIARC 165 • EZIARC 205
Cylinders
WARNING!
Gas cylinders contain gas under high pressure.
If damaged, a cylinder can explode. Since gas
cylinders are normally part of the welding
process, be sure to treat them carefully.
1. Protect compressed gas cylinders from exces-
sive heat, mechanical shocks, and arcs.
2. Install and secure cylinders in an upright posi-
tion by chaining them to a stationary support or
equipment cylinder rack to prevent falling or tip-
ping.
3. Keep cylinders away from any welding or other
electrical circuits.
4. Never allow a welding electrode to touch any cyl-
inder.
5. Use appropriate shielding gas, regulators, hoses,
and fittings designed for the specific application;
maintain them and their associated parts in good
condition.
6. Turn your face away from the valve outlet when
opening the cylinder valve.

20 www.strata.co.nz
EZIARC 165 • EZIARC 205
Care & Maintenance
Keep your Welding Machine
in Top Condition
The EZIARC 165/205 does not require any
special maintenance, however the user should take
care of the machine as follows:
• Regularly clean the ventilation slots.
• Keep the casing clean.
• Check all cables before use.
• Check electrode holders, work lead/clamps and
welding torches before use.
• Replace worn electrode holders and earth
clamps, which do not provide a good
connection.
• Replace worn consumable parts in a timely
manner.
• Use a soft cloth or brush to clean electrical
components.
• Do not use liquid cleaning products, water or
especially solvents.
• Do not use compressed air to clean electrical
components as this can force dirt and dust
further into components, causing electrical short
circuits.
• Check for damaged parts. Do not use the welder
with damaged parts.
• A damaged welder must be carefully checked by
a qualified person to determine that it will operate
properly. Check for breakage of parts, mountings
and other conditions that may affect its operation.
An authorised service centre should properly
repair a damaged part. Have your welder repaired
by an expert.
This appliance is manufactured in accordance with
relevant safety standards. Only experts must carry
out repairing of electrical appliances, otherwise
considerable danger for the user may result. Use only
genuine replacement parts. Do not use modified or
non-genuine parts.
Storing the Welder
When not in use the welder should be stored in the
dry and frost-free environment.
WARNING! Before performing cleaning/main-
tenance, replacing cables / connections , make
sure the welding machine is switched off and
disconnected from the power supply.