Rights reserved to alter specifications without notice.
TOCe
- 3 -
GB
1SAFETY
Users of ESAB welding equipment have the ultimate responsibility for ensuring that anyone who works on or near the equipment
observes all the relevant safety precautions. Safety precautions must meet the requirements that apply to this type of welding
place.
ation of the equipment may lead to hazardous situations which can result in injury to the operator and damage to the equipment.
1.Anyone who uses the welding equipment must be familiar with:
2.The operator must ensure that:
3.The workplace must:
4.Personal safety equipment
5.General precautions
its operation
location of emergency stops
its function
relevant safety precautions
welding
no unauthorized person is stationed within the working area of the equipment when it is started up.
no-one is unprotected when the arc is struck
be suitable for the purpose
be free from drafts
Always wear recommended personal safety equipment, such as safety glasses, flame-proof clothing, safety gloves.
Do not wear loose-fitting items, such as scarves, bracelets, rings, etc., which could become trapped or cause burns.
Make sure the return cable is connected securely.
Work on high voltage equipment may only be carried out by a qualied electrician.
Appropriate fire extinquishing equipment must be clearly marked and close at hand.
CAUTION
This product is solely intended for arc welding.
WARNING
Do not use the power source for thawing frozen pipes.
Arc welding and cutting can be injurious to yourself and others. Take precautions when welding and
cutting. Ask for your employer's safety practices which should be based on manufacturers' hazard
data.
ELECTRIC SHOCK - Can kill
Install and earth the unit in accordance with applicable standards.
Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
Insulate yourself from earth and the workpiece.
Ensure your working stance is safe.
FUMES AND GASES - Can be dangerous to health
Keep your head out of the fumes.
Use ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone
and the general area.
ARC RAYS - Can injure eyes and burn skin.
Protect your eyes and body. Use the correct welding screen and filter lens and wear protective
clothing.
Protect bystanders with suitable screens or curtains.
FIRE HAZARD
Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.
NOISE - Excessive noise can damage hearing
Protect your ears. Use earmuffs or other hearing protection.
Warn bystanders of the risk.
MALFUNCTION - Call for expert assistance in the event of malfunction.
Read and understand the instruction manual before installing or operating.
PROTECT YOURSELF AND OTHERS!
CAUTION
Read and understand the instruction manual before
installing or operating.
CAUTION
Class A equipment is not intended for use in residential locations where
the electrical power is provided by the public low-voltage supply system.
There may be potential diculties in ensuring electromagnetic
compatibility of class A equipment in those locations, due to conducted
as well as radiated disturbances.
ESAB can provide you with all necessary welding protection and accessories.
Operating temperature-10° C - +40° C
Transportation temperature-20° C - +55° C
Constant A-weighted sound pressure< 70 dB
Dimensions, l x b x h418 x 188 x 208 mm
Weight8.1 kg
Enclosure classIP 23
Application class
14 A
22 A
0.35 ohm
max
150 A / 26.0 V
100 A / 24.0 V
90 A / 23.6 V
150 A / 16.0 V
120 A / 14.8 V
110 A / 14.4 V
0.99
0.98
80%
77%
55 - 60 V
< 35 V
Mains supply, Z
Maximum permissible line impedance of the network in accordance with IEC 61000-3-11.
Duty cycle
The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or cut at
a certain load without overloading. The duty cycle is valid for 40° C.
Enclosure class
The IP code indicates the enclosure class, i. e. the degree of protection against penetration by solid
objects or water. Equipment marked IP23 is designed for indoor and outdoor use.
Application class
The symbol indicates that the power source is designed for use in areas with increased
electrical hazard.
The installation must be carried out by a professional.
Note
Mains supply requirements
High power equipment may, due to the primary current drawn from the mains supply, influence the
power quality of the grid. Therefore connection restrictions or requirements regarding the
maximum permissible mains impedance or the required minimum supply capacity at the interface
point to the public grid may apply for some types of equipment (see technical data). In this case 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.
4.1 Location
Position the power source such that its cooling air inlets and outlets are not
obstructed.
4.2 Mains power supply
Check that the welding power source is connected to
the correct voltage and that the correct fuse size is used.
A protective earth connection must be made in accordance
with regulations
4.2.1 Recommended fuse sizes and minimum cable area
Arc 151i
Mains voltage
Mains frequency50-60 Hz
Mains cable, area3G2.5 mm
Phase current I
Welding cable, area16 mm
Fuse
anti-surge
type C MCB
1eff
230 V 10 %, 1-phase
2
11 A
2
16 A
13 A
NOTE!
The cable area and fuse rating above comply with Swedish regulations. Use the
welding power source in accordance with the relevant national regulations.
5OPERATION
5.1 PFC - Power factor correction
The Arc 151i is a 230 V single-phase power sources equipped with a PFC circuit
making it possible to use the full range of the machine on a 16 A fuse. The PFC also
protects the machines against fluctuating mains voltage and makes it safer to use
with a generator. The power source can operate with extra long mains cables, over
100 m, giving you a very larger working radius.
5.2 Connections and control devices
1Connection (+)
MMA: for return cable or welding cable
TIG: for return cable
2Connection for remote control unit5Toggle switch for mains power supply 0 / 1
3Control panel6Mains cable
4Connection (+)
MMA: for return cable or welding cable
TIG: for Tig torch l
The power source has two outputs, a positive terminal (+) and a negative terminal
(-), for connecting welding and return cables. The output to which the welding cable
is connected depends on the type of electrode used. The connecting polarity is
stated on the electrode packaging. Connect the welding cable to the terminal stated
on the electrode packaging.
Connect the return cable to the other output on the power source. Secure the return
cable's contact clamp to the work piece and ensure that there is good contact
between the work piece and the output for the return cable on the power source.
5.4 Overheating protection
The welding power source has a thermal overload trip which operates if the
temperature becomes too high, interrupting the welding current and lighting a yellow
indicating lamp on the front of the power source. The thermal overload trip resets
automatically when the temperature has fallen.
5.5 MMA welding
Arc 151i gives direct current, and you can weld most metals to alloy and non-alloy
steel, stainless steel and cast iron.
The power source allows you to weld most coated electrodes from Ø 1.6 to Ø 3.25.
MMA welding may also be referred to as welding with coated electrodes. Striking the arc
melts the electrode, and its coating forms protective slag.
ately melts and sticks to the metal, rendering continued welding impossible.
Therefore, the arc has to be struck in the same way that you would light a match.
Quickly strike the electrode against the metal, then raise it so
as to give an appropriate arc length (approx. 2 mm). If the arc
pletely.
If you are working on a welding bench, check before attempting
to strike the arc that residual waste metal, pieces of electrode
or other objects on the bench do not insulate the part to be
welded.
Once the arc has been struck, move the electrode from left to
right. The electrode must be at an angle of 60
° to the metal in
relation to the direction of welding.
cmha2p11
When you want to weld wide beads, or when you want the weld
TIG welding melts the metal of the workpiece, using an arc struck from a tungsten
electrode, which does not itself melt. The weld pool and the electrode are protected
by shielding gas.
TIG welding is particularly useful where high quality is demanded and for welding
thin plate. Arc 151i also has good characteristics for TIG welding.
In order to TIG weld the power source must be equipped with:
a TIG torch with gas valve
a welding gas cylinder (a suitable welding gas)
a welding gas regulator (suitable gas regulator)
tungsten electrode
suitable auxiliary material, if necessary.
”Live TIG-start” (only A33 control panel)
With “Live TIG start” the arc strikes when the tungsten electrode is brought into
contact with the workpiece and then lifted away from it.
5.7 Remote control unit
The remote control unit is connected to the remote control socket on the power
source.
6MAINTENANCE
Regular maintenance is important for safe, reliable operation.
Only those persons who have appropriate electrical knowledge (authorized
personnel) may remove the safety plates to connect or carry out service,
maintenance or repair work on welding equipment.
CAUTION
All guarantee undertakings from the supplier cease to apply if the customer attempts any
work to rectify any faults in the product during the guarantee period.
Check regularly that the welding power source is not clogged with dirt.
How often and which cleaning methods apply depend on: the welding process, arc
times, placement, and the surrounding environment. It is normally sufficient to blow
down the power source with dry compressed air (reduced pressure) once a year.
Clogged or blocked air inlets and outlets otherwise result in overheating.
TIG torch
The TIG torch's wear parts should be cleaned and replaced at regular intervals in
order to achieve trouble-free welding.
7FAULT-TRACING
Try these recommended checks and inspections before sending for an authorized
service technician.
Type of faultCorrective action
No arc.Check that the mains power supply switch is turned on.
Check that the welding current supply and return cables are
correctly connected.
Check that the correct current value is set.
Check to see whether the MCB has tripped.
Check whether the thermal cut-outs have tripped (indicated
ted during welding.
quently.
Poor welding performance.Check that the welding current supply and return cables are
by the orange lamp on the front panel).
Check the mains power supply fuses.
Check to see whether the dust filter is clogged.
Make sure that you are not exceeding the rated data for the
power source (i.e. that the unit is not being overloaded).
correctly connected.
Check that the correct current value is set.
Check that the correct electrodes are being used.
Check the gas flow.
7.1 Fault codes
Arc 151i comes with built-in fault monitoring. If a fault occurs, a code is shown in the
display. See instruction manual for the control panel.
Repair and electrical work should be performed by an authorised ESAB service
technician. Use only ESAB original spare and wear parts.
Arc 151i is designed and tested in accordance with the international and European
standards EN 60974-1 and EN 60974-10. It is the obligation of the service unit which
has carried out the service or repair work to make sure that the product still conforms
to the said standard.
Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.
9DISMANTLING AND SCRAPPING
Welding equipment primarily consists of steel, plastic and non-ferrous metals, and must
be handled according to local environmental regulations.
Coolant must also be handled according to local environmental regulations.
Dispose of electronic equipment at the recycling facility!
In observance of European Directive 2002/96/EC on Waste Electrical and Electronic
Equipment and its implementation in accordance with national law, electrical and/or
electronic equipment that has reached the end of its life must be disposed of at a
recycling facility.
As the person responsible for the equipment, it is your responsibility to obtain
information on approved collection stations.
For further information contact the nearest ESAB dealer.