background image

b-2

OPERATION

b-2

INVERTEC®  100S

ARC-WELDING CIRCUIT

(See Figure B.3)

FIGURE b.3

Current  flows  through  the  electrode  cable  and  elec-
trode  holder  to  the  electrode  and  across  the  arc.  On
the work side of the arc, the current flows through the
base metal to the work cable and back to the welding
machine. The circuit must be complete for the current
to flow. 

To weld, the work clamp must be tightly connected to
clean  base  metal.  Remove  paint,  rust,  etc.  as  neces-
sary  to  get  a  good  connection.  Connect  the  work
clamp  as  close  as  possible  to  the  area  you  wish  to
weld. Avoid  allowing  the  welding  circuit  to  pass
through  hinges,  bearings,  electronic  components  or
similar devices that can be damaged.

An electric arc is made between the work and the end
of a small metal rod, the electrode, which is clamped
in a holder and the holder is held by the person doing
the welding. A gap is made in the welding circuit (see
Figure  B.3)  by  holding  the  tip  of  the  electrode  1/16-
1/8” away from the work or base metal being welded.
The electric arc is established in this gap and is held
and  moved  along  the  joint  to  be  welded,  melting  the
metal as it is moved.

ELECTRIC ARC

(See Figure B.4)
Action that takes place in the electric arc.

FIGURE b.4

CONTROLS AND OPERATIONAL

MACHINE START-UP:

When the machine is turned ON, an auto-test is exe-
cuted;  during  this  test  only  the  Thermal  LED  is  ON;
after few seconds the Thermal LED turns OFF and the
Power ON/OFF LED lights up.

The  Machine  is  ready  to  operate  when  the 

POWER

ON LED

on the Front Control Panel illuminates green.

FRONT PANEL CONTROLS

Output Current Knob:

Potentiometer used to set the output
current used during welding.

Power ON/OFF LED:

This LED lights up when the machine
is ON.

Thermal LED:

This  indicator  will  turn  on  when  the
machine is overheated and the output
has  been  disabled.    This  normally
occurs  when  the  duty  cycle  of  the
machine  has  been  exceeded.    Leave
the  machine  on  to  allow  the  internal
components  to  cool.    When  the  indi-
cator  turns  off,  normal  operation  is
again possible.

A. Power Switch:

It turns ON / OFF the input power to the machine.

b. Input cable:

This machine is provided with an input cord and mold-
ed plug.  Connect it to a grounded outlet.

C. Fan:

The  fan  is  turned  ON  /  OFF  by  the  machine  Power
Switch.

Summary of Contents for INVERTEC 100S

Page 1: ...9 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectric com Safety Depends on You Lincoln arc welding and cutting equipment is designed and built with safety in mind However your overal...

Page 2: ...KER WEARERS SHOULD CONSULT WITH THEIR DOCTOR bEFORE OPERATING Read and understand the following safety highlights For additional safety information it is strongly recommended that you purchase a copy...

Page 3: ...cooling 3 h Never simultaneously touch electrically hot parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welder...

Page 4: ...s to adjacent areas Avoid welding near hydraulic lines Have a fire extinguisher readily available 6 b Where compressed gases are to be used at the job site special precautions should be used to preven...

Page 5: ...opri s et non inflammables 4 Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise paisse pa...

Page 6: ...he situation with the technical assistance of the manufacturer In some cases this remedial action may be as simple as earthing grounding the welding circuit see Note In other cases it could involve co...

Page 7: ...s Welding Cables The welding cables should be kept as short as possible and should be positioned close together running at or close to floor level Equipotential Bonding Bonding of all metallic compone...

Page 8: ..._______________________ Date Purchased___________________________________________________________________________ Where Purchased_______________________________________________________________________...

Page 9: ...B 2 Making the Weld B 3 B 4 ________________________________________________________________________ Accessories Section C Optional Accessories and Compatible Equipment C 1 Factory Field Installed C...

Page 10: ...SIONS TEMPERATURE RANGES OPERATING TEMPERATURE RANGE 10 C to 40 C STORAGE TEMPERATURE RANGE 25 C to 55 C RECOMMENDED INPUT WIRE AND FUSE SIzES FOR MAXIMUM RATED OUTPUT INPUT VOLTAGE FREQUENCY Hz 120 6...

Page 11: ...ay result in injury or equipment damage Read the section on electromagnetic compatibility in this manual Do not operate in areas with an ambient tempera ture greater than 40 C STACKING The INVERTEC 10...

Page 12: ...RTEC 100S A 3 120V INPUT The rated output of the Invertec 100S is available when connected to a 20A branch circuit When con nected to a branch circuit with lower ampacity lower welding current and dut...

Page 13: ...exhaust to remove fumes from breathing zone ARC RAYS can burn Wear eye ear and body protection WELDING CUTTING and GOUGING SPARKS can cause fire or explosion Keep flammable material away Do not weld c...

Page 14: ...is established in this gap and is held and moved along the joint to be welded melting the metal as it is moved ELECTRIC ARC See Figure B 4 Action that takes place in the electric arc FIGURE b 4 CONTR...

Page 15: ...well as hot and cannot be looked at with the naked eye without risking painful injury A very dark lens specifically designed for arc welding must be used with a hand or face shield whenever viewing th...

Page 16: ...way of an electric arc Unlike stick welding in which the electrode is consumed in the arc the tung sten electrode is not consumed Instead filler metal is added to the weld by manually dipping a filler...

Page 17: ...82 11 25 0 Ft 1 Piece Cable K1782 13 12 5 Ft 1 Piece Ultra Flex Cable K960 2 TIG Torch Adapter for connection of PTA 17V torches 1 piece cable to power sources without gas passing through the Twist Ma...

Page 18: ...can be serviced Discharging is done automatically by the machine each time the power is switched off However you must allow the machine to sit for at least 5 minutes to allow time for the process to...

Page 19: ...beled POSSIBLE CAUSE lists the obvious external possibilities that may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Ca...

Page 20: ...gh progression speed 2 Welding current too low 3 Narrow chamfering 1 Arc too short 2 Current too low 1 Humidity in electrode 2 Long arc 1 Current too high 2 Dirty materials 3 Hydrogen in weld present...

Page 21: ...OF ACTION Oxidation Tungsten inclusions Porosity Hot cracking 1 lnsufficient gas 2 No protection on the back side 1 lncorrect electrode sharpening 2 Electrode too small 3 Operating failure contact of...

Page 22: ...nit has been operated beyond its capacity rating 2 Airflow through machine is restrict ed or fan has failed 1 Check the output current poten tiometer and replace it if neces sary 2 Verify output cable...

Page 23: ...may not be accurate for all machines covered by this manual The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels If the diagram is illegible write to...

Page 24: ...RBEITGEBERS l Do not touch electrically live parts or electrode with skin or wet clothing l Insulate yourself from work and ground l No toque las partes o los elec trodos bajo carga con la piel o ropa...

Page 25: ...nes de travail l Vermeiden Sie das Einatmen von Schweibrauch l Sorgen Sie f r gute Be und Entl ftung des Arbeitsplatzes l Mantenha seu rosto da fuma a l Turn power off before servic ing l Desconectar...

Page 26: ...s Leader in Welding and Cutting Products Sales and Service through Subsidiaries and Distributors Worldwide Cleveland Ohio 44117 1199 U S A TEL 216 481 8100 FAX 216 486 1751 WEB SITE www lincolnelectr...

Reviews: