Rtech INV160 Manuel utilisateur

www.r-techwelding.co.uk

email: sales@r-techwelding.co.uk

Tel: 01452 733933 Fax 01452 733939

INV160 PORTABLE INVERTER

MIG WELDER

OPERATION INSTRUCTIONS

Thank you for selecting the R-Tech INV160 Portable Inverter Mig Welder.

The INV160 has many benefits over traditional transformer mig welders, including infinite

power control, adjustable arc force and a compact wire feed mechanism to provide very

smooth wire feed and weld characteristics

We want you to take pride in operating our INV160, as much pride as we have taken in

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

PLEASE EXAMINE 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 welding equipment identification below for future reference. This information can be

found on data plate at rear of machine.

Product MIG INV160

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 2 year parts and labour warranty, you are responsible for costs of shipping

unit to us, we will cover cost of returning item to you. External items, torch, earth lead etc are covered by

3 months warranty. Any faults/damage found caused by customer will be charged pro-rata.

Please read this operator manual completely before attempting to use this equipment.

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 INV160 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 than traditional welders

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

3. Adjustable arc force – controls splatter – ideal for automotive work

4. Digital amp & volt meters

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

6. 30% Duty cycle at 160 Amps @ 40C

7. 60% Duty cycle at 115 Amps @ 40C

8. Lightweight and portable – Ideal for maintenance and mobile welders

Recommended Processes

The R-Tech INV160 is recommended for the MIG welding processes within its output capacity

of 160 Amps DC

Equipment Limitations

The R-Tech INV160 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 INV160 is rated at 160 Amps at 30% and 115 Amps @ 60% 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 MIG INV160

Input 240V AC 50/60Hz

MIG Operation Rated Input Power MAX 20A MAX

I-Eff Input Power 11A Continuous

Fuse rating 13A slow blow

Rated Output Current 160Amps Max

Generator required KVA 4.8KVA

Duty Cycle @ 160 AMPS 30% @ 40ºC

Duty Cycle @ 115 AMPS 60% @ 40ºC

Duty Cycle @ 90 AMPS 100% @ 40ºC

Output current Range 30-160 AMPS

No Load Voltage 55-75V

Amperage range 0.6mm wire 30-100 AMPS

Amperage range 0.8mm wire 50-160 AMPS

Suitable Wire Diameter 0.6mm 0.8mm

Gross Weight 18 KG

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 mig welding 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 INV160 Mig Welder requires a 240V 50/60Hz 1-Phase supply. It requires a 13A 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 13AMP 240V MAINS INPUT

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

Connecting to an Engine Driven Generator

If connecting this machine to an engine driven generator please ensure

the following

Minimum Generator KVA Output – 4.8 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 MIG INV160

Setup machine as per two diagrams below:

Fig 1 Fig 2

1. 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.

2. 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.

3. Mains input cable

Fit required plug as per your electrical installation

4. 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.

5. On/Off Power Switch

This turns the INV160 Mig Welder on and off.

Controls and Settings

Fig 3

1. 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 (Fig3.4)

2. Wire Speed

This adjusts the wire feed speed from 0-100%

Adjust the wire speed to suit welding voltage (Fig3.1) and job requirements

When adjusting the wire feed speed a value is shown in the amperage LED (Fig3.5)

This feature allows you to record this value along with the preset welding voltage for

easy setup to specific job when several different welding jobs are being done

3. Arc Force

Gives further adjustment on weld characteristics, on traditional transformer machines

this was known as choke.

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

4. Voltage LED Display

This shows the preset welding voltage when no welding is being carried out

When welding this shows the actual welding voltage

This allows the machine to be calibrated to BS if required by your company

5. Amperage LED Display

This shows the preset wire feed speed when no welding is being carried out

When welding this shows the actual welding amperage

This allows the machine to be calibrated to BS if required by your company

6. Warning LED

This warning light will come on under these situations

Duty cycle of machine has been exceeded, the machine will stop working and the fan

will continue to run until machine has cooled down. The light will go off and welding

may be carried out again.

If duty cycle has not been exceeded the warning light comes on to warn of either

low input voltage has been sensed or there is an internal fault with machine

7. Power LED

This lights when machine is switched on

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