Sherman DIGIMIG 225GDS User Manual
V1.2 03/18/21
USER MANUAL
WELDING RECTIFIER synergistic Inverter
DIGIMIG 225GDS
ATTENTION!
Before installing and commissioning, please read these instructions
1. GENERAL
Commissioning and operation of the device can be made only after a careful reading of this handbook.
Due to the continuous development of technical equipment, some of its functions can be modified and operation may differ in detail from the
description in the manual. This is not a device error, but the result of continuous progress and modification work unit.
Damage from improper handling results in a loss of warranty. Any alteration of the rectifier are prohibited and void the warranty.
2. SAFETY
Staff operating the device should have the necessary qualifications entitling them to carry out welding work:
• should have the competence in the field of electric welder gas-shielded welding,
• know the rules of safety during the operation of the power they are welding equipment and auxiliary equipment powered by electricity,
• know the safety rules when handling and installation of the cylinder of compressed gas (argon)
• know the contents of this manual and use the device for its intended purpose.
WARNING
Welding may endanger the safety of the operator and other persons in the vicinity. Therefore, when welding special precautions must be
taken. Prior to welding, refer to the applicable health and safety regulations in the workplace. During electric arc welding MIG / MAG, there are
the following risks:
• ELECTRIC SHOCK
• ARC NEGATIVE IMPACT ON HUMAN EYES AND SKIN
• PAIRS AND GAS POISONING
• BURNS
• EXPLOSION AND FIRE HAZARDS
• NOISE
Prevention of electric shock:
• a device connected to a technically efficient electrical system in a proper security and effectiveness of neutral (additional fire protection);
Check and properly connect to the network and other devices in the workplace welder,
• current leads off with the mounted unit,
• It does not simultaneously touch the non-insulated part of the electrode holder, the electrode and the workpiece in the device housing,
• Do not use the handles and load wires with damaged insulation,
• under special hazard of electric shock (work in environments with high humidity and closed tanks) to work with the helper supporting the work of
the welder and watchful over the safety, use gloves and clothing with good insulation properties,
• if you notice any irregularities, please contact the competent people to remove them,
• It is forbidden to operate the device with the covers removed.
Preventing negative effects of electric arc on human skin and eyes:
• Use protective clothing (gloves, lab coat, shoes, leather)
• Use protective shields or helmets with properly matched filter,
• Use protective curtains of non-combustible materials, and properly selected colors wall absorbing the harmful radiation.
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Poisoning prevention vapors and gases evolved at the time of welding of coatings for welding electrodes and evaporation of metals:
• Use ventilation and exhaust installed in limited air exchange.
• Blow fresh air when working in a confined space (tanks)
• Use masks and respirators.
Preventing burns:
• Wear suitable protective clothing and footwear to protect from burns from arc radiation and spatter,
• Avoid contamination of clothing lubricants and oils that may lead to its inflammation.
Explosion prevention and fire:
• Do not operate the machine and welding in areas at risk of explosion or fire,
• Welding station should be equipped with fire-fighting equipment,
• Welding station should be located a safe distance from flammable materials.
Preventing negative effects of noise:
• Wear earplugs or other protection against noise,
• Warn people about the danger nearby.
WARNING!
Do not use the power source for thawing frozen pipes.
Before starting the unit:
• Check the condition of electrical and mechanical connections. It is forbidden to use handles and load wires with damaged insulation.
Inadequate insulation handles and cables current danger of electric shock,
• Ensure proper operating conditions, ie. To ensure proper temperature, moisture and ventilation in the workplace. Outdoors closed to protect from
rain,
• Place the charger in a place that allows its easy handling. Persons operating welder should:
• have the power to electric welding MIG / MAG
• know and comply with applicable health and safety regulations when performing welding work,
• use proper, specialized protective equipment: gloves, apron, rubber boots, shield or welding helmet with a suitably selected filter
• know the contents of this manual welder and operated in accordance with its intended purpose. Repair work may only be carried out
after removing the plug from the wall socket.
When the device is connected to the network is not allowed to touch the bare hand or by any wet clothing elements forming the welding current
circuit.
It is forbidden to remove the outer casing when the device is turned on to the network. Any alteration of the rectifier on their own are
prohibited and may constitute a deterioration in security conditions.
All maintenance and repair may only be performed by authorized persons with the conditions applicable to the safety of electrical equipment. Do not
operate the welder in areas at risk of explosion or fire! Welding station should be equipped with fire-fighting equipment. After working the machine power
cord must be disconnected from the network.
The above risks and the general safety rules is not exhaustive safety of the welder, since it does not take into account the specifics of the workplace.
They are an important complement to bench safety instructions and training and briefings given by supervisory staff.
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3. GENERAL DESCRIPTION
DIGIMIG 225GDS synergic welding is used for manual welding of steel and non-ferrous metals. Allows MIG / MAG, MMA (coated electrode) and Lift
TIG. It can also be used to braze thin (3mm) galvanized sheets. By changing the polarization unit can be welded by MIG / MAG welding with the use of
standard wire in the protective gases and the self-shielded flux cored wires.
The device allows connection of the handle Spool-type gun (SG) which is mounted at the mini wire feed reel and D100 steel wire or colored.
Used in the device settings synergistic upraszają its service and allow the use of welding by people with less experience and hobbyists.
The device is IGBT allowing a considerable reduction in the weight and dimensions of the welding device and an increase in efficiency while reducing
power consumption.
Welding is used in closed or covered, if directly exposed to weathering.
4. SPECIFICATIONS
4.1 welder
Power supply: AC 230V 50Hz
Maximum power consumption: 5.9 kVA
Rated welding current: / cycle MIG: 220A / 30%; MMA: 210A / 30%; TIG 210A / 30%
Rated voltage of no-load condition 65 V
The diameters of the spools of wire: 100mm, 200mm
Maximum current consumption: MIG 38 A; MMA: 42 A; TIG 27 A
Mass: 13 kg
Dimensions [mm] 450 x 218 x 370
Level of security: IP21
4.1.1 range parameter adjustment
Welding current: MIG 50 - 220 A MMA 40 - 210 A TIG: 15 - 210 A
Welding voltage: MIG: 17.5 - 24.7 V
Wire feed speed: 2 - 14 m / min
Inductance: - 10 - + 10%
ARC FORCE (MMA) 0 - 10
HOT START (MMA) 0 - 10
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4.2 MIG
Handle Type: TW-15
The maximum current carrying capacity: 200 A (CO 2)200 A (CO 2)
Type of cooling: gas
The cooling gas flow: 10-18 l / min
Length: 3 m
Duty cycle
Duty cycle is based on a period of 10 minutes. Duty cycle of 30% means that after 3 minutes of operation of the device is required for a 7-minute break.
Duty cycle of 100% means that the machine can operate continuously without interruption.
Attention! Heating test was carried out in the ambient air temperature. Duty cycle at 20 ° C was determined by simulation.
Level of security
IP specifies the degree to which the device is resistant to entering of solid impurities and water. IP21 means that the device is suitable for working in
confined spaces.
Protection against overheating
IGBT module is protected against overheating by installing protective welding machine which turns off the power. After a few minutes, the cooling device
to a temperature enabling it again automatically activated. There should at that time interrupt the power supply, since the continuously operating fan
cools the heat sinks inside the unit to more quickly reduce the temperature. After restarting, be sure to limit the welding parameters for further continuous
operation.
ARC FORCE
ARC FORCE allows the arc. Shortening the length of the arc is accompanied by an increase in the welding current, which results in stabilizing the arc.
Reducing the value of the function gives a soft arc and a smaller depth of penetration, while increasing the value of the function causes deeper
penetration and the possibility of short-arc welding. At a set high value ARC FORCE function you can be welded while maintaining the minimum arc
length and a high melting rate of the electrode.
Function HOT START
HOT START function is popularly called hot start. It works when the arc is struck, causing a momentary increase in the welding current than the value
set by the welder. HOT START is designed to prevent the electrode sticking to the material and is a great help during the ignition of the arc. In the case
of small parts welding it is recommended to disable this function, because it can cause burning of the work piece.
VRD function
The function VRD (Voltage Reduction Device) lowers the output voltage in no-load condition to a safe level, eliminating the risk of electric shock.
2T / 4T
Welder MIG welding can be controlled in the mode dwutaktu and czterotaktu. Dwutaktu mode by pressing the button on the handle and the welding arc
is struck should be carried out with the button pressed. Releasing the button on the handle will complete the welding process. In czterotaktu mode, press
the button on the handle of the burner and ignite the arc. After the correct arc is lit button can be released and welding lead to the slow button. To
complete the welding press and release the button on the handle.
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5. PREPARING TO WORK EQUIPMENT
When storing or transporting the unit under freezing, before operating the device to bring the temperature above freezing.
1. Power MIG
2. Nest "-"
3. Plug polarity changes
4. Spool control plug holder Gun
5. Slot "+"
6. Power Cord
7. The gas connection
8. The power switch
5.1 Wiring
5.1.1 Method MMA
Welding the wire ends to terminals (2) and (5) located on the front panel so that the electrode holder was appropriate for the electrode pole. The polarity
of the wiring depends on the type of welding electrodes used and is given on the electrode packaging. The return line clamp must be carefully mounted
on the welded material. Plug the device into a power outlet 230V 50Hz.
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5.1.2 Method of TIG
Welding by this method it is necessary to use an additional TIG torch. The handle is required gas-cooled current-carrying capacity of 200A, equipped
with a shielding gas control valve. Current terminal holder should be connected to the negative pole (2) and the gas conduit to the regulator to the gas
cylinder. The positive pole of the source (5) connected to the work piece by means of a wire with a clamp. Plug the device into a power outlet 230V
50Hz.
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5.1.3 MIG brazing and
5.1.3.1 Welding and brazing gas-shielded
Terminal current holder should be connected to MIG (1). Gas conduit from the regulator, lead and attach to the gas nozzle (7) on the rear wall of the
housing. Plug polarization changes (3) in the socket (5). The negative pole of a source (2) connected to the work piece by means of a wire with a clamp.
Plug the device into a power outlet 230V 50Hz.
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5.1.3.2 self-shielded welding steel wire
Terminal current holder should be connected to MIG (1). Plug polarization changes (3) in the socket (2). The positive pole of the source (5) connected to
the work piece by means of a wire with a clamp. Plug the device into a power outlet 230V 50Hz.
5.1.3.3 Welding type handle Spool Gun (optional)
Terminal current holder should be connected to MIG (1). Plug polarization changes (3) in the socket (5). The negative pole of a source (2) connected to
the work piece by means of a wire with a clamp. Plug the device into a power outlet 230V 50Hz. Press (F) switch control.
5.2 Connection shielding gas
1. Attach the bottle and secure it against tipping.
2. Remove the cylinder valve briefly to remove any impurities.
3. Install the regulator on the cylinder.
4. Connect the hose with a discharge gas regulator (7) to the rear of the welder.
5. Remove the cylinder valve and regulator.
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