Lincoln Electric W000315558 Mounting instructions

GAS FLOW PROGRAMMER

RDM PLASMA

SAFETY INSTRUCTIONS FOR USE AND MAINTENANCE

DEVICE No W000315558 - W000315559 - W000315560

EDITION : EN Instructions for use REF: 8695 5535

REVISION : L

DATE : 06-2018 Original instructions

Thank for the trust you have expressed by purchasing this equipment, which

will give you full satisfaction if you follow its instructions for use and

maintenance.

Its design, component specifications and workmanship comply with

applicable European directives.

Please refer to the enclosed CE declaration to identify the directives

applicable to it.

The manufacturer will not be held responsible where items not recommended

by themselves are associated with this product.

For your safety,there follows a non-restrictive list of recommendations or

requirements, many of which appear in the employment code.

Finally we would ask you kindly to inform your supplier of any error which

you may find in this instruction manual.

8695 5535

RDM PLASMA I

CONTENTS

A - IDENTIFICATION.........................................................................................................................1

B - SAFETY INSTRUCTIONS............................................................................................................2

C- DESCRIPTION ..............................................................................................................................3

1 - REMINDER.........................................................................................................................3

2 - NEED FOR A PROGRAMMER...........................................................................................4

3 - DESCRIPTION....................................................................................................................5

4 - OVERALL DIMENSIONS OF THE GAS UNIT ...................................................................6

D - ASSEMBLY AND INSTALLATION..............................................................................................8

1 - RDM CONNECTION DIAGRAM.........................................................................................8

2 - CONNECTIONS..................................................................................................................9

E - OPERATOR’S MANUAL..............................................................................................................10

F - MAINTENANCE............................................................................................................................11

1 - TROUBLESHOOTING CHART...........................................................................................11

2 - SPARE PARTS...................................................................................................................12

PERSONAL NOTES ..........................................................................................................................16

8695 5535

II RDM PLASMA

INFORMATIONS

DISPLAYS AND PRESSURE GAUGES

The measuring devices or displays for voltage, current, speed, pressure, etc., whether analog or digital, should be

considered as indicators

For operating instructions, adjustments, troubleshooting and spare parts see safety instructions for use and

maintenance

ISEE No. GAS SUPPLEMENT 8695 5511

REVISIONS

REVISION B 01/05

DESIGNATION

PAGE

Update

9-19-20

REVISION C 11/05

DESIGNATION

PAGE

OVERALL dimensions OF the GAS UNIT

REVISION D 07/06

DESIGNATION

PAGE

To change logos

REVISION E 09/08

DESIGNATION

PAGE

Complete update + spareparts newoffer

REVISION F 06/10

DESIGNATION

PAGE

Update

D-8 ;F-20

REVISION G 10/10

DESIGNATION

PAGE

Update => Valve unit

REVISION H 01/11

DESIGNATION

PAGE

Spare parts

REVISION I 03/13

DESIGNATION

PAGE

Spare parts

8695 5535

RDM PLASMA III

REVISION J 07/13

DESIGNATION

PAGE

NERTAMATIC Plus

REVISION K 10/15

DESIGNATION

PAGE

Update « Spare parts »

F-13

REVISION L 06/18

DESIGNATION

PAGE

To change logos

8695 5535

IV RDM PLASMA

8695 5535 / L

RDM PLASMA A-1

A - IDENTIFICATION

Please enter the number of your equipment in the following box.

Quote this information in all correspondence.

Manufacturing factory code

Year manufactured

Manufacturing year code

Product type

Product serial no.

8695 5535 / L

B-2 RDM PLASMA

B - SAFETY INSTRUCTIONS

For general safety instructions, please refer to the specific manual supplied with

the equipment.

8695 5535 / L

RDM PLASMA C-3

C- DESCRIPTION

1 - REMINDER

With automatic keyhole plasma welding, any of the following defects may occur if the arc

is switched off suddenly with no precaution:

The plasma jet hole remains.

The hole disappears but the high plasma gas flow and the decreasing intensity leads

to gouging in the metal that is being solidified, with the appearance of blow holes.

These defects are not generally critical in the case of longitudinal welding, as the weld

bead often starts and ends on end plates. But they are not acceptable in circular welding. In

that case, you must use a gas flow programmer, which is used to control the decrease in the

flow of plasma gas for a given welding cycle, in order to eliminate the defects described

above in a reliable and reproducible way.

C- DESCRIPTION 8695 5535 / L

C-4 RDM PLASMA

2 - NEED FOR A PROGRAMMER

AREA 1 = Through jet welding area

AREA 2 = Area where the plasma gas flow associated with appropriate intensity leads to

welding similar to TIG welding (no keyhole).

AREA 3 = Transit area (risk of defects)

The problem of the fading phase consists in moving from area 1 to area 2 without any

defect:

For conventional stainless steel grades up to 4 mm, area 3 is narrow and the switch-off

cycle is easy to create by controlling the plasma gas flow and the welding intensity.

While welding more delicate grades and for thicknesses of 5 mm or more, you need to

control not only the plasma gas flow and the welding intensity during the switch-off phase, but

also the movement of the torch relative to the part, the arc voltage sensing and the filler

material.

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