Rohr MIG-250MI Manual de usuario
INVERTER IGBT MIG / MAG / MMA
ONDULEUR IGBT MIG / MAG / MMA
MIG-200MI •MIG-250MI
This manual provides important safety information and instructions on how to set up your welder. Every welding situation has the
potential for personal injury. In order to minimize that risk, it’s important to read this manual carefully.
Keep this manual in a safe place, review it frequently and ensure that
all users have read it to ensure safe operation.
Ce manuel fournit des informations de sécurité importantes et des instructions concernant la conguration de votre chargeur de
batterie. An de minimiser les risques, il est important de lire attentivement ce manuel.
Conservez ce manuel dans un endroit sûr, relisez-le fréquemment et assurez-vous que tous les utilisateurs le lisent, an assurer
une utilisation sécurisée.
MIG-200MI / MIG-250MI
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Contents
02 - Contents
03 - Quick Start Guide - Control Panels
04 - Quick Start Guide - Welding
05 - Quick Start Guide - Gas / Gasless
06 - Health and Safety
07 - Health and Safety / Technical Data
08 - Troubleshooting
09 - CE Declaration of Conformity
02 - Sommaire
10 - Guide de Démarrage Rapide - Panneau de conguration
11 - Guide de Démarrage Rapide - Soudage
12 - Guide de Démarrage Rapide - Gaz / Sans Gaz
13 - Sécurité
14 - Sécurité / Données Techniques
15 - Dépannage
16 - Certicat de Conformité CE
Sommaire
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MIG-200MI / MIG-250MI
Quick Start Guide - Control Panels
1. Amps Display
2. Voltage Display
3. Power Indicator Light
4. Over-heat Indicator Light
5. Wire Feed Speed
6. MIG Voltage Dial
7. MMA Amps Dial
8. MIG / MMA Toggle Switch
9. Link Cable Terminal
10. Negative Terminal
1
3 4
5
27
8
6
10
11
12
11. Positive Terminal
12. Torch Connection Terminal
13. Power Supply
14. Power Switch
15. 240V Outlet
16. Gas Supply Nozzle
1 7. Wire Spool
18. Wire Screw
19. Wire Feed Tube
20. Thickness Adjustment Dial
9
13 14 15 16
17 18
19
20
The quick start guide can be used to aid the setup of your welder but it’s important to
fully read and understand this manual fully prior to setting up the welding machine.
MIG-200MI / MIG-250MI
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MIG MAG Welding
MMA Welding
Manual Metal Arc welding uses an electrode stick to create a contact between the
material to be welded. This is held in place with the stick clamp.
1. Attach the stick clamp to the positive terminal and the earth clamp to the negative terminal.
2. Attach the earth clamp to a conductive connected part of the weld surface.
3. Ground the unit by using the ground connecting screw at the back of the machine and
connect to a grounded metal point free from the weld surface.
4. Set the switch to MMA and set the required amps required based on the thickness of the
metal to be welded.
5. Plug in the unit to the mains power supply (must be single phase) and switch on the unit.
6. You are now ready to start welding.
Metal Inert Gas welding uses a gas supply to create an oxygen free shroud around the
weld area. A consumable wire is used to create the weld.
1. Attach the wire onto the wire spool and feed the wire into the wire feed pipe.
2. Adjust the thickness adjustment dial to the correct wire thickness.
3. Insert the wire into the MIG torch and connect the torch to the torch connection terminal.
4. Gas Welding: connect the gas supply to the gas supply nozzle via a regulating valve.
Connect the link cable (Fig.3 / Page 5) between the link cable terminal and the positive
terminal (Fig.1 / Page 5).
5. Gasless Welding: connect the link cable (Fig.3 / Page 5) between the link cable terminal
and the negative terminal (Fig.2 / Page 5).
6. Connect the earth clamp to the negative terminal and attach to a conductive part of your
weld surface.
7. Ground the unit by using the ground connecting screw at the back of the machine and
connect to a grounded metal point free from the weld surface.
8. Set the wire feed speed on the front dial and set the toggle switch to MIG.
9. Set the voltage required using the MIG voltage dial.
10. Plug in the unit to the mains power supply and turn the unit on.
11. Turn on gas supply and set the ow rate.
12. Press the trigger on the torch for several seconds until all air is drained from the system.
13. Start your weld. Try to maintain a relatively constant tip-to-work distance and try to avoid
touching the gun tip on the weld surface.
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MIG-200MI / MIG-250MI
Fig.1
Quick Start Guide - Gas / Gasless
Fig.2
Fig.3
1
2
3
1
2
3
MIG-200MI / MIG-250MI
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If you fail to fully understand this manual you should contact the suppliers or another
professional for assistance.
1. Safety cut out - the welding machine has a safety circuit to protect against excess power,
current or heat. This circuit will cause the welding machine to cut out automatically if
activated. The fans will continue to cool the unit.
2. Machine air ow - the internal fan requires a free ow of air. Ensure the intake is not
blocked or covered.
3. Do not overload - overloaded input current will impair the performance and may seriously
damage the machine.
4. Grounding - the welding machine must be grounded by means of the grounding connector
at the rear of the machine, tted to ground as per the required standard.
5. Cleaning - before cleaning, the power must be turned off and disconnected from the
mains. All cleaning should be carried out by a qualied professional. Remove dust using low
pressure compressed air to avoid damage to fragile components inside the machine.
Electric shock - may lead to death.
• An isolator switch is recommended when using the machine.
• It is dangerous to touch the electrical components.
• Wear welding gloves, ear, eye, face protection and clothing / ensure others nearby are
protected.
• Use suitable protective equipment or curtain to protect any on-lookers and warn all
onlookers about the possible risk to their eyes.
• Make sure you are well insulated from the ground.
• Make sure you are in a safe and secure position.
• Gas may be harmful to your health, do not inhale the gas, use an extractor.
• Welding sparks may cause re, make sure the welding area is re safe.
Arc radiation can be harmful to your eyes and can burn your skin.
Health and Safety
Warning - Risk of injury. Pay
special attention
Caution - Be aware of potential
risks / hazards
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MIG-200MI / MIG-250MI
Environment
1. The machine can perform in environments where conditions are dry with a maximum
humidity level of 90% and an ambient temperature between -10 to +40 degrees centigrade.
2. Avoid welding in direct sunshine or a wet/damp environment. If the machine comes into
contact with water, do not use the machine until it has been fully inspected by a qualied
professional.
3. Do not use the machine in an environment where the air is polluted with conductive dust.
Health and Safety
Technical Data
MIG-200MI MIG-250MI
Power Voltage (V) Single Phase AC230V±15% Single Phase AC230V±15%
Frequency (HZ) 50/60 50/60
Rated Input Current (A) 28 36.4
Output Current MIG (A) 50-200 50-250
Output Current MMA (A) 20-200 20-250
Output Voltage (V) 16.5-24 16.5-26.5
Duty Cycle (%) 60 60
Power Factor 0.93 0.93
Efciency (%) 85 85
Wire Machine Compact Compact
Wire Speed (M/Min) 2.5-13 2.5-13
Post Puff (S) 1 1
Wire Spool Diameter (mm) 150 150
Wire Diameter (mm) 0.6-1 0.6-1
Applied Welding Rod (mm) 1.6-4 1.6-5
Housing Shielding Grade IP21 IP21
Insulation Grade F F
Suitable Wire Thickness (mm) 0.8 and above 0.8 and above
MIG-200MI / MIG-250MI
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Fittings, welding materials and environmental factors may affect the quality of your welding.
This guide will help you to ensure your setup is just right to achieve the perfect weld.
Oxidisation occurring during weld
• Check that your Argon cylinder is open and pressurised to a minimum of 0.5Mpa.
• Check that the ow meter is open and it has enough ow. You can select the ow
according to the welding current. Insufcient ow may cause oxidisation.
• Check the torch to ensure that it’s not blocked.
• Check that the gas supply is fully air tight.
Hard to strike / maintain an arc
• Ensure you are using a high quality tungsten electrode.
• Grind the end of the tungsten electrode to a taper. If the tungsten electrode is not ground, it
will be difcult to strike arc or the arc may be unstable.
There is no power to the unit / no response from the unit
• Ensure that the electric cable is in good condition and connected correctly. Faulty cables
must not be used, they should be replaced by a qualied professional.
The HF arc-striking sound can be heard but there is no welding output
• Check the torch and ground cables to ensure that they are connected correctly and they
are not damaged. Faulty cables must not be used, they should be replaced by a qualied
professional.
• Check that the grounding cable is making good contact with the welding object.
• Check the end of the tungsten electrode to see if it needs to be ground down to a taper.
Electrodes that have become contaminated need to be ground down.
Unit producing untidy welds
• Ensure that the feed speed is not too fast and that the protruding wire is not too long.
• Ensure that the amp output is not too high.
Wire feed not stable
• Adjust the wire feed or loosen the nut on the wire plate.
Troubleshooting
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MIG-200MI / MIG-250MI
We hereby declare that the machine described below complies with the relevant basic safety
and health requirements of the EU Directives, both in its basic design and construction as
well as in the version put into circulation by us. This declaration shall cease to be valid if the
machine is modied without our prior approval.
The undersigned: Michael S McQuaide
As authorised by: Union Mart Ltd
Declares that
Description: Welding Machines
Identication code: (MIG-200MI) - (MIG-250MI)
Conforms to the following directives and standards:
• LVD 2014/35/EU Low Voltage Directive
• EMC 2014/30/EU Electromagnetic Compatibility Directive
--
And Complies with the provisions of the following standards:
EN60974-1:2012,EN 60974-10:2014, EN55011:2009+A1:2010, EN 61000-3-11:2000,
EN 61000-3-12:2011
--
Notied body: I S E T SRL
The technical documentation is kept by: Union Mart Ltd
Date: 16/10/2017
Signed:
Michael S McQuaide
Managing Director
Name and address of the manufacturer:
Union Mart Ltd, Company No. 8384155. Registered address: Unit 4,
Mauretania Road, Nursling Industrial Estate, Southampton, SO16 0YS. United Kingdom.
CE Declaration of Conformity
MIG-200MI / MIG-250MI
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Guide de Démarrage Rapide - Panneau de
1. Afchage des Ampères
2. Afchage de la Tension
3. Voyant d’Alimentation
4. Voyant de surchauffe
5. Vitesse de Fil
6. Cadran de Tension MIG
7. Cadran Ampères MMA
8. Interrupteur à Bascule MIG / MMA
9. Lien Cable Terminal
10. Terminal Négatif
1
3 4
5
27
8
6
10
11
12
11. Terminal Positif
12. Terminal de Connexion de la Torche
13. Source de Courant
14. Interrupteur
15. Sortie 240V
16. Buse d’Alimentation en Gaz
1 7. Bobine de l
18. Vis à Fil
19. Tube d’Alimentation en Fil
20.Molette de Réglage d’Épaisseur
9
13 14 15 16
17 18
19
20
Le guide de démarrage rapide peut être utilisé pour faciliter la conguration de votre
machine à souder, mais il est important de lire et de comprendre parfaitement ce
manuel avant de congurer votre machine.
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