Kemppi MinarcTig 180 User manual

Operating manual

Brugsanvisning

Gebrauchsanweisung

Manual de instrucciones

Käyttöohje

Manuel d’utilisation

Gebruiksaanwijzing

Bruksanvisning

Instrukcja obsługi

Инструкции по эксплуатации

Bruksanvisning

操作手册

MinarcTig

180, 180MLP, 250, 250MLP

OPERATING MANUAL

English

CONTENTS

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

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

1.2 Machine properties .................................................................. 5

1.3 About welding.......................................................................... 6

2. Machine use ......................................................................... 7

2.1 Before commissioning the machine ....................................... 7

2.2 General view of the machine................................................... 8

2.3 Distribution network................................................................ 8

2.4 Cable connections.................................................................... 9

2.5 Welding power selection and electrodes .............................11

2.6 Adjustments and indicators (180 and 250)...........................12

2.6.1 Welding current regulation and remote control .....13

2.6.2 MMA welding settings ..............................................13

2.6.3 TIG welding function.................................................13

2.6.4 Additional features for MLP models.........................14

3. Setup features....................................................................15

4. Error codes ..........................................................................16

5. Maintenance.......................................................................17

5.1 Daily maintenance .................................................................17

5.2 Disposal...................................................................................17

6. Ordering numbers ...........................................................18

7. Troubleshooting ...............................................................19

8. Technical data ...................................................................20

4MinarcTig 180, 180MLP, 250, 250 MLP

1. PREFACE

1.1 General

Congratulations on choosing the MinarcTig 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 in the manual.

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.

Disclaimer

While every eort has been made to ensure that the information contained

in this guide is accurate and complete, no liability can be accepted for any

errors or omissions. Kemppi reserves the right to change the specication of

the product described at any time without prior notice. Do not copy, record,

reproduce or transmit the contents of this guide without prior permission

from Kemppi.

1.2 Machine properties

MinarcTig machines are compact and robust direct current welding

machines suitable for MMA and TIG welding. Extremely light in weight for

their output power, the machines are easy to carry to the work place with

either the inbuilt moulded carry handle or the shoulder strap provided.

The 180 and 180 MLP models can be used in regular lighting circuits, i.e.,

in single-phase electric networks. The 250 and 250 MLP models require a

three-phase network.

5© Kemppi Oy / 1339

1.3 About welding

MinarcTig is a precise welding tool and will provide high quality results

time after time provided the correct operational procedures are followed.

Welding quality is not only inuenced by the machine itself. Personal

expertise, ancillary equipment and consumables also play an essential role,

as does the correct, fused supply power.

Welding is carried out when an electric arc is established between the

welding electrode and work piece. Welding is not possible unless the

equipment is correctly set-up, including the earthing cable attached to the

work piece. This cable creates the welding circuit that allows the welding

current to ow. Please check the earthing clamp is on the work piece to be

welded, and that the area of the clamps contact is clean and free from paint.

MMA welding

The MMA is a simple welding process. A coated MMA electrode is short

circuited to the work piece and the resulting electric arc creates a molten

pool into which the electrode wire melts. The coating around the electrode

burns to create a protective gaseous atmosphere and slag, which directly

protects the molten weld pool from atmospheric contamination. The slag

oats on the molten weld pool and solidies on the surface of the resulting

weld bead, protecting the cooling weld.

The electrode is moved slowly along the weld seam. The travel speed

is directly proportional to the size of the electrode and welding current

selected. The slag is nally removed with a chipping hammer to reveal the

weld (always use eye protection).

TIG welding

In TIG welding, the welding arc is formed between a non-consumable

tungsten electrode and the work piece. The resulting high temperature

arc melts the work piece to form a molten pool, into which ller wire of a

similar alloy composition is slowly melted. The molten weld pool and ller

wire are protected from the harmful eects of atmospheric contamination

by an inert shielding gas that ows out from the TIG welding torch’s ceramic

nozzle at a rate of approximately 8–15 litres per minute. (Gas regulator, ow

meter and pure argon shielding gas are not provided in this package.)

6MinarcTig 180, 180MLP, 250, 250 MLP

2. MACHINE USE

2.1 Before commissioning the machine

MinarcTig is packed in purpose made, recyclable packaging. However,

always ensure that the equipment has not been damaged in transportation.

Even so, make sure that all in-transport damage is reported to the machine

supplier. Do not unpack the machine under these circumstances. In addition,

before commissioning, check that you have received all of the items you

ordered along with their operating instructions.

Transportation

The machine should be transported in an upright position.

Environment

The machine is suitable for both indoor and outdoor use. In outdoor use,

protect it from heavy rain and sunshine. Store the machine in a dry and

clean environment and protect it from sand and dust during use and

storage. The recommended operating temperature range is –20 to +40

degrees centigrade.

Site the machine so that it does not come into contact with hot surfaces,

sparks and welding spatter. Make sure the airow to and from the machine

is unrestricted.

7© Kemppi Oy / 1339

2.2 General view of the machine

1.2.

1. Welding torch

2. Earthing cable and earthing clamp

3. Main switch

4. Mains cable (MinarcTig 180 in the picture)

5. Shielding gas hose connector

2.3 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.

MinarcTig 180, 180MLP:

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.

MinarcTig 250, 250MLP:

This equipment complies with IEC 61000-3-12 provided that the short-circuit

power Ssc is greater than or equal to 1.5 MVA at the interface point between

the user's supply and the public supply network. 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 is connected

only to a supply with a short-circuit power Ssc greater than or equal to

1.5 MVA.

8MinarcTig 180, 180MLP, 250, 250 MLP

2.4 Cable connections

Connection to mains

The machine is equipped with a 3.3 m supply voltage cable and plug. Plug

the mains cable to a single-phase electric network.

The MinarcTig 250 is supplied with a 5 m mains cable without a plug.

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.

Earthing cable

Connect the earthing 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 weld piece. When you press the welding torch switch, the shielding

gas begins to ow and the arc is established. The TIG torch is connected to

the negative pole.

9© Kemppi Oy / 1339

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.

The machine is delivered with a 4.5 m shielding gas hose. Connect the gas

hose snap connector to the male connector on the machine. The other end

of the gas supply hose should be connected 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.

10 MinarcTig 180, 180MLP, 250, 250 MLP

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