Rtech I-MIG200 Manual de usuario

I-MIG200 MIG/MMA WELDER

OPERATION INSTRUCTIONS

www.r-techwelding.co.uk

Thank you for selecting the R-Tech I-MIG 200 Compact Inverter Mig Welder.

The I-Mig200 has many benefits over traditional transformer mig welders, including infinite

power control, adjustable arc force and features a heavy duty 4-roll geared wire feed

mechanism to provide very smooth wire feed and weld characteristics

Provides very smooth welds on all steels and aluminium due to its inverter technology, for

alloy welding just simply fit alloy rollers and a Teflon liner to torch

Ideal for automotive work with its minimum current of 30 Amps.

We want you to take pride in operating our I-MIG200 as much pride as we have taken in making

this product for you. Please read all information in this manual before operation

PLEASE EXAMINE THE CARTON AND EQUIPMENT FOR DAMAGE IMMEDIATELY

When this equipment is shipped, title passes to the purchaser upon receipt from the courier.

Consequently all claims for material damaged in shipment must be made by purchaser against

the transportation company used.

Please record your equipment identification below for future reference. This information can be

found on the data plate at rear of machine.

Product: I-MIG200

Serial No. ___________________________________

Date of Purchase _____________________________

Where Purchased _____________________________

Whenever you request replacement parts or information on this equipment please always

supply information you have recorded above.

This product is covered by a 2 year parts and labour warranty; we will cover the cost of collecting and

returning the item to you. External items, (torch, earth lead etc…) are covered by a 3 month warranty. Any

faults/damage found caused by a customer will be charged accordingly.

Pay particular attention to the safety instructions we have provided you for your protection

The level of seriousness to be applied to each section is explained below

WARNING

This statement appears where the information must be followed exactly to avoid serious personal injury.

CAUTION

This statement appears where the information must be following to avoid a minor personal injury or damage

to this equipment.

Introduction

The R-Tech I-MIG 200 is a member of our field acclaimed family of welding products.

Premium features include:-

1. Inverter power source – more efficient to operate, provides smoother weld characteristics.

2. Heavy duty 4-Roll geared wire feed unit for long working life and consistent wire feeding.

3. Infinite welding voltage to allow fine tuning of weld characteristics

4. Adjustable arc force – controls splatter – ideal for thin materials

5. Adjustable burnback control

6. Spot welding & stitch welding facilities

7. Digital amp & volts meters

8. Euro type torch fittings for easy torch fitment/replacement

9. 35% Duty cycle at 200 Amps @ 40ºC

Recommended Processes

The R-Tech I-MIG 200 is recommended for the MIG welding processes within its output capacity of

200 Amps DC

Equipment Limitations

The R-Tech I-MIG 200 is protected from overloads beyond the output ratings and duty cycle as per

machine specifications with thermostat protection of the output coils and rectifiers.

Welding Capability – Duty Cycle

The R-Tech I-MIG 200 is rated at 200 Amps at 35% duty cycle on a ten minute basis. If the duty cycle

is exceeded a thermal protector will shut machine off until the machine cools.

Technical Specifications

Model No. R-Tech I-MIG 200

Input 240V 1~ AC 50/60Hz

MIG Operation

Rated Input Current I-Eff 19 AMPS

Rated Output Current 200 AMPS

Duty Cycle @ 200 AMPS 35% @ 40ºC

Duty Cycle @ 155 AMPS 60% @ 40ºC

Output current Range 30-200 AMPS

No Load Voltage 55-75V MAX

Voltage Adjustment Range 14V – 26V +/- 3V

Suitable Wire Diameter - Steel 0.6mm, 0.8mm, 1.0mm

Suitable Wire Diameter - Alloy 0.8mm, 1.0mm, 1.2mm

Insulation Class F

Safety Precautions

Read entire section before starting installation

WARNING!

Electric Shock can kill – Only qualified personnel should perform this installation. Turn off input power

at the fuse box before working on this equipment. Do not touch electrically live parts. Always connect

the machine to an earthed mains supply as per national recommended standards.

Select suitable location

Place the welder where clean cooling air can freely circulate in and out of the front & rear louver vents.

Dirt, dust or any foreign material that can be drawn through vents into welder must be kept to a

minimum. Failure to observe these precautions can result in excessive operating temperatures which

can lead to plant failure.

Grinding

Do not direct grinding particles towards the welder. An abundance of conductive material can cause

plant failure.

Stacking

This machine cannot be stacked.

Transport – Unloading

Never underestimate the weight of equipment, never move or leave suspended in the air above

people. Use recommended lifting equipment at all times.

WARNING!

Falling Equipment can cause injury. Never lift welder with gas bottle attached. Never lift above

personnel.

Tilting

Machine must be placed on a secure level surface or on a recommended undercarriage/trolley. This

machine may topple over if this procedure is not followed.

Environmental Rating

The welding power source carries the IP21S rating. It may be used in normal industrial and

commercial environments. Avoid using in areas where water / rain is around.

Read and follow the ‘Electric Shock Warnings’ in the safety section if welding must be performed

under electrically hazardous conditions such as welding in wet areas or water on the work piece.

Electrical Installation

WARNING!

ELECTRIC SHOCK CAN KILL

Machine grounding and High Frequency Interference Protection

This welder must be grounded to earth. See national electrical codes fro proper grounding methods.

The high frequency generator being similar to a radio transmitter may cause interference to radio, TV

and other electronic equipment. These problems may be the result of radiated interference. Proper

grounding methods can reduce or eliminate this.

Radiated interference can develop in the following ways

1. Direct interference from welder power source

2. Direct interference from the welding leads

3. Direct interference radiated from feedback into power lines

4. Interference from re-radiation by un-grounded metallic objects.

Keeping these contributing factors in mind, installing equipment as per following instructions should

minimize problems.

1. Keep the welder input power lines as short as possible and enclose as much of them as

possible in metal conduit or equivalent shielding. There should be a good electrical contact

between this conduit and ground (Earth).

2. Keep the work and electrode leads as short as possible. Tape the leads together where

practical.

3. Be sure the torch and earth leads rubber coverings are free from cuts and cracks that allow

welding power leakage

4. Keep earth lead connection to work in good condition – Clean area on workbench where earth

clamp is situated on a regular basis.

Input Connections

Make sure the voltage, phase and frequency of input power is as specified on machine rating plate

located at rear of machine.

Have a qualified electrician provide suitable input power as per national electrical codes. Make sure

machine is earthed / grounded.

Make sure fuse or circuit breaker is correct rating for machine. Using fuses or circuit breakers smaller

than recommended will result in ‘nuisance’ shut off from welder inrush currents even if welding at low

amperages.

Failure to follow these instructions can cause immediate failure within the welder and void machines

warranty.

Turn the input power OFF at the mains switch & fuse box before working on this equipment.

Have a qualified electrician install & service this equipment.

Allow machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working

inside this equipment. Do not touch electrically live parts

The I-MIG 200 Mig Welder requires a 240V 50/60Hz 1-Phase supply. It requires an 19A supply. It

comes with a 3 metre mains cable attached.

Connect wires according to national coding.

Brown wire – Live

Blue wire – Neutral

Green/Yellow Wire – Earth (Ground)

Connecting to a mains electrical supply

THIS MACHINE IS OF AN INDUSTRIAL SPECIFICATION AND MUST BE FITTED

TO A 20AMP 240V MAINS INPUT

Failure to connect to correct supply will in-validate your warranty

DO NOT CONNECT TO A 13AMP DOMESTIC PLUG

Connecting to an Engine Driven Generator

If connecting this machine to an engine driven generator please ensure the

following

Minimum Generator KVA Output – 7 KVA continuous

Generator to be fitted with AVR (automatic voltage regulation)

DO NOT USE ON A GENERATOR WITHOUT AVR

Connecting to a generator without the above minimum requirements will in-

validate your warranty.

Connections for I-Mig 200

Rear machine connections

Fig 1

1. Fuse Holder

Fuse for wire feed motor protection

2. Auxiliary AC output

For water cooler – Maximum load 3A – Do not connect to power tools etc

3. Gas inlet connection

Connect gas hose to rear of machine and then to regulator on gas bottle. Ensure all

connections are tight to ensure no loss of gas.

Make sure gas bottle is secured to machine securely using supplied chain to avoid injury.

4. Mains input cable

Fit required plug as per your electrical installation

Front machine connections

Fig 2

1. Euro torch connector

Connect Euro type Mig torch to euro torch connector, align torch connector to machine

connector and then turn retaining ring clockwise to secure.

Ensure torch is secured tightly to avoid weld power problems

To avoid electric shock keep the Mig torch in good condition and replace if any of the

insulation is damaged.

2. Earth / Workpiece connector

Connect the earth lead (negative - ) to this connector.

Insert male connector into socket and twist clockwise until tight.

Secure other end of earth lead to Workpiece via the earth clamp.

Controls and Settings

Fig3

1. Spot Welding

This adjusts the amount of time the weld will last. When you press the torch switch the

machine will do a single spot weld according to the time you have set and then stop, then

release torch switch. Press torch switch again to do another spot weld.

2. Arc Force

Gives further adjustment on weld characteristics, on traditional transformer machines this was

known as choke. Low setting is ideal for automotive work.

Lower setting = softer weld with less splatter and less penetration – for thinner materials

Higher setting = harsher weld with more splatter and penetration – for thicker materials

3. Welding Voltage

This adjusts the welding voltage (weld power) from 0 to 10. Adjust knob for power output

required by job, preset welding voltage is shown in LED (Fig 3.7)

4. Stitch Welding

This is used in combination with the spot welding control. This sets the interval time between

spot welds.

When you press the torch switch the machine will do a spot weld as set by the spot welding

control knob (Fig 3.1) and then a delay time set on stitch welding knob and then another spot

weld is carried out. To stop stitch welding release the torch trigger.

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