Kemppi HiArc S 140 Manual de usuario

Operating manual

Manual de instrucciones

Manuel d’utilisation

Manual de utilização

Инструкции по эксплуатации

HiArc

S 140

OPERATING MANUAL

English

4Hiarc S 140

CONTENTS

1. Preface .................................................................................... 5

1.1 General...................................................................................... 5

1.2 Product introduction................................................................ 5

2. Before starting..................................................................... 6

2.1 Main components .................................................................... 6

2.2 Distribution network................................................................ 7

2.3 Cable connections.................................................................... 7

2.4 Filler materials and equipment ............................................... 8

3. Use............................................................................................ 9

3.1 Welding processes.................................................................... 9

3.1.1 Manual Metal Arc welding (MMA).............................. 9

3.1.2 TIG welding .................................................................. 9

3.2 Operating functions...............................................................10

3.3 Welding selections .................................................................11

3.3.1 Manual Metal Arc welding (MMA)............................11

3.3.2 DC TIG welding ..........................................................11

3.4 Earthing and welding.............................................................11

3.4.1 Earthing......................................................................11

3.4.2 Welding ......................................................................11

3.5 Storing.....................................................................................12

4. Maintenance.......................................................................12

4.1 Daily maintenance .................................................................12

4.2 Troubleshooting.....................................................................13

4.3 Disposal...................................................................................13

5. Ordering numbers ...........................................................14

6. Technical data....................................................................14

5© Kemppi Oy / 1418

1. PREFACE

1.1 General

Congratulations on choosing the HiArc equipment. Used correctly, Kemppi

products can signicantly increase the productivity of your welding, and

provide years of economical service.

This operating manual contains important information on the use,

maintenance and safety of your Kemppi product. The technical

specications of the equipment can be found at the end of the manual.

Please read the manual carefully before using the equipment for the rst

time. For your own safety and that of your working environment, pay

particular attention to the safety instructions included with the package.

For more information on Kemppi products, contact Kemppi Oy, consult an

authorised Kemppi dealer, or visit the Kemppi web site at www.kemppi.com.

The specications presented in this manual are subject to change without

prior notice.

Important notes

Items in the manual that require particular attention in order to minimise

damage and personal harm are indicated with the ’NOTE!’ notation. Read

these sections carefully and follow their instructions.

1.2 Product introduction

HiArc S 140 is a manual metal arc welding machine, small in size, suitable

for industry, site and repair welding. The unit uses one phase connection

voltage (230 V).

HiArc tolerates a great uctuation of input voltage and is thus suitable

for work on sites using generator as well as to be used with long power

cables. Inverter technology has been used when designing the unit. Power

regulation in power source is done with IGBT transistors. Welding and earth

return cables are supplied with the unit. They are equipped with suitable

connections for the unit electrode holder, earth clamps and connections.

HiArc can also be used for TIG welding. TIG arc is started by scratching.

Ordering numbers of additional equipment for TIG welding can be found in

chapter 5. Ordering numbers.

6Hiarc S 140

2. BEFORE STARTING

The equipment is packed in durable packages, designed specially for them.

Nevertheless, always before using the equipment, make sure it was not damaged

during transportation. Also check that you have received what you ordered and

that there are instructions for it. NOTE! The packaging material of the products is

suitable for recycling.

Place the unit on horizontal, solid and clean surface. Shield it from heavy rain and

scorching sun. Make sure that cooling air circulates freely.

Serial number

Serial number of the unit is marked on the rating plate of the unit. The serial

number makes it possible to trace product manufacturing series. You might

need the serial number when placing spare parts orders or when planning

maintenance.

2.1 Main components

Connect welding cable and earth return cable to their connections on the power

source. Mains cable and wall plug are already installed.

Parts of the unit

1. Body of machine

2. Main power switch

3. Selector switch for welding process

4. Welding current regulator

5. Signal light, machine 'ON'

6. Signal light for overheating

7. Electrode holder and welding cable

8. Earth return cable and clamp

2 3

678

7© Kemppi Oy / 1418

2.2 Distribution network

All regular electrical devices without special circuits generate harmonic

currents into distribution network. High rates of harmonic current may cause

losses and disturbance to some equipment.

HiArc S 140

WARNING: This equipment does not comply with IEC 61000-3-12. If it is

connected to a public low voltage system, 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.

2.3 Cable connections

Connection to mains

The unit has a mains cable and a wall plug. You can nd fuse and cable sizes

in the end of these instructions in Technical data.

NOTE! Check the fuse size in Technical specications. The plug may

be installed only by electrical contractors and installers specialised in

performing such operations.

If you use an extension power supply cord, its cross sectional area should

be at least as large as the supply voltage cable tted to the machine. The

maximum length for the extension cable is 50 m.

The minimum power of a single-phase machine generator must be 3.5 kVA.

The recommended power is 7.0 kVA for using the machine at maximum

power.

Restrictions on generator type and power may apply in generator use. Fault-

free operation of a three-phase machine also requires a suciently high-

power generator. The power recommendation is more than 15 kVA.

Earth return cable

Connect the earth return cable to the negative pole in MMA welding, and to

the positive pole in TIG welding.

Before you start welding, clean the work piece surface and x the earth

return clamp to the work piece in order to create a closed and interference

free welding circuit.

Welding torch (TIG)

The welding torch is used to supply shielding gas and electrical arc energy

to the work piece. Connect the TIG torch to the negative pole. Open the gas

valve of the TTM 15V TIG torch. The arc is ignited by touching the work piece

lightly with the TIG electrode (scratch ignition).

8Hiarc S 140

Shielding gas

In TIG welding, shielding gas is used to prevent atmospheric contamination

of the molten weld pool and cooling weld. Normally, the shielding gas

is argon (Ar). Normally the gas ow rate is approximately 8–15 litres per

minute, but this can vary according to the welding current used and the size

of gas nozzle.

Connect the TTM 15V TIG torch gas hose to the outlet of the regulator.

NOTE! Under no circumstances should you connect the hose directly to

the cylinder valve. Always use a regulator and ow meter for safe and

accurate operation.

1. Connect the hose to the reduced pressure side of the cylinder

regulator, or ow meter and tighten the connector.

2. Adjust the shielding gas ow rate with the ow regulation adjustment

screw. A suitable gas ow rate is 8–15 l/min

3. Close the cylinder valve after use.

2.4 Filler materials and equipment

See also 2.1 Main components. You can use all electrodes intended for

welding with DC. Suitable electrode sizes for the unit are listed in the end of

these instructions in Technical data.

1. Use welding specications given on electrode package.

2. Check that you have selected the correct welding process before

starting to weld.

3. Check that welding cable and earth return cable connections are tight.

If a connection is slack, it will result in voltage drop that will cause the

connection to heat.

4. Mount the electrode rmly in holder.

9© Kemppi Oy / 1418

3. USE

NOTE! It is forbidden to weld in places where there is a danger of re or

explosion!

3.1 Welding processes

3.1.1 Manual Metal Arc welding (MMA)

In manual metal arc welding (MMA) the welding ller material is melted

from the electrode to the weld pool. The rate of the welding current is

selected based on the electrode size used and the welding position. Arc

forms between electrode tip and welding piece. The melting electrode

coating forms gas and slag, which protects the weld pool. Slag solidied

over the weld is removed after welding e.g. with a chipping hammer (use of

eye protection is strongly advised).

3.1.2 TIG welding

In DC TIG welding, the arc between the tungsten electrode and the welding

piece melts the welding piece, thus forming a weld pool. Arc and electrode

are shielded by an inert shielding gas (argon). If necessary, ller is used. Filler

wire is fed into the weld pool from the outside of the arc. The ller wire and

the welding current level are decided according to the base material type

and thickness, joint form and welding position.

10 Hiarc S 140

3.2 Operating functions

See also 2.1. Main components and 3.3. Welding selections.

1. Signal light, machine 'ON'

2. Welding process selecting switch

3. Welding current adjuster

4. Signal light for overheating

5. Suitable electrodes; reference values for welding current

Main switch and signal light

When you turn the main switch to position I, signal light is lit and the unit is

ready for welding. Signal light is always on, when the unit is connected to

the mains and the main switch is in position I.

NOTE! Always start and stop the machine from the main switch, never

use the plug as a switch!

Welding process selector, MMA / TIG

Switch is used for selecting either MMA or TIG welding, depending on

welding target.

Regulating welding current

Welding current rate is regulated steplessly by adjusting control knob.

Signal light for overheating

A yellow signal light of overheating is lit, when thermostat has tripped due

to the unit’s overheating. Fan will cool the unit and after the signal light goes

o, the unit is again ready for welding.

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