Rtech TIG200DV-PD User manual

www.r-techwelding.co.uk
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TIG200DV-PD DIGITAL TIG WELDER
Dual Voltage 110V-240V
OPERATION INSTRUCTIONS
Version 2017-8

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Thank you for selecting the R-Tech TIG200DV-PD Digital Inverter DC Tig Welder.
The TIG200DV-PD Digital has many benefits over traditional TIG welders, including pulse
welding, slope up/down, remote foot option and an industrial 60% duty cycle.
We want you to take pride in operating our TIG200DV-PD Digital 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 equipment identification below for future reference. This information can be found on
data plate at rear of machine.
Product TIG200DV-PD DIGITAL
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 years parts and labour warranty, R-Tech will cover costs of collection,
repair and return of welder to you for mainland UK (Other areas are RTB warranty).
External items, torch, earth lead etc are covered by 3 months warranty. Any faults/damage found caused
by customer will be charged pro-rata.
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.

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Introduction
The R-Tech TIG200DV-PD Digital 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. Full Featured Pulse welding in DC Tig welding mode
3. HF Arc start – Easy arc striking and prolonged tungsten life
4. Slope up / slope down
5. Remote foot pedal option
6. Digital control panel with memory store function.
7. Industrial 60% Duty cycle at 200 Amps @ 40C
Recommended Processes
The R-Tech TIG200DV-PD Digital is recommended for the Tig welding processes within its output
capacity of 200 Amps @240V or 125A at 110V input.
Welding Capability – Duty Cycle
The R-Tech TIG200DV-PD Digital is rated at 200 Amps at 60% duty cycle (240V TIG) 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 TIG200DV-PD
Input
240V AC 50/60Hz 22A
110V AC 50/60Hz 25A
MMA
No-load Voltage
60V – 80V
60V - 80V
Current Range
5A – 160A
5A - 100A
Rated Output Current
160A @ 60% Duty Cycle
100A @60% Duty Cycle
DC TIG
No-load Voltage
60V – 80V
60V - 80V
Current Range
5A – 200A
5A - 125A
Rated Output Current
200A
125A
Duty Cycle Tig
60% @200A
60% @125A
Up-Slope Time
0-10 Seconds
0-10 Seconds
Down-Slope Time
0-10 Seconds
0-10 Seconds
Pulse Frequency Range
0.1Hz – 500Hz
0.1Hz – 500Hz
Pulse Width Range
5% - 95%
5% - 95%
Pulse Amperage Range
5% - 95% of main amps
5% - 95% of main amps
Gas Post Flow Time
0 - 25 Seconds
0 - 25 Seconds
Gas Pre Flow Time
0 - 25 Seconds
0 - 25 Seconds
Arc Starting Mode
High Frequency
High Frequency
Start Amps
5 -150% of main amps
5 -150% of main amps
End Amps
5 -95% of main amps
5 -95% of main amps
Gross Weight
18 KG
425 x 195 x 310mm
Insulation
IP23S

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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 IP23S 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.

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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 for 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.

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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 TIG200DV-PD DIGITAL Inverter Tig Welder requires an 110V/240V 50/60Hz 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 MINIMUM of 32AMP 110V or 240V MAINS INPUT FOR FULL
OUTPUT RANGE TO BE ACHIEVED.
This machine is auto sensing of input voltage, no need for any internal
changes, simply plug into either 110V or 240V supply and machine will
set itself to correct input mode.
Connecting to an Engine Driven Generator
If connecting this machine to an engine driven generator please ensure the
following
Minimum Generator KVA Output – 6 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.

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Connections for TIG200DV-PD Digital
Rear machine connections
Fig 1
1. On/Off Switch
2. Earth for chassis
If experiencing localized interference when using machine, connect workbench to this point
using correct graded earth wire (not normally used)
3. Gas input connector
Connect input gas hose ensuring connection is tight
4. Mains input cable
Fit required plug as per your electrical installation

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Connections for TIG (GTAW) Welding
Fig 2
1. Negative power connector -
Connect Tig Torch Dinze to power connector by inserting and twisting until tight
ENSURE TIG TORCH IS FITTED TO NEGATIVE CONNECTOR OTHERWISE YOU WILL
EXPERIENCE TUNGSTEN BURNBACK
2. Gas outlet - Quick release type
Connect the torch gas hose
3. Positive power connector +
Connect the earth lead to by inserting and twisting until tight and the earth clamp to
work/bench
4. Torch control socket 7-Pin
Connect torch control plug
To avoid a High Frequency shock keep the Tig torch in good condition and replace if any of the
insulation is damaged.
Connect the gas input hose to gas regulator and use ‘Pure Argon’ Gas, available from local
suppliers. Set gas flow/pressure to 8-12 LPM. Make sure gas bottle is secured to avoid injury.
Remote Foot Pedal connection.
Disconnect Tig Torch switch plug from torch control socket (Fig2.4) and connect plug from foot
pedal.

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Connections for STICK MMA (SMAW) Welding
Fig 3
1. Negative power connector -
Connect the earth lead to by inserting and twisting until tight and the earth clamp to
work/bench.
2. Positive power connector +
Connect the electrode holder by inserting and twisting until tight