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10

13)  Press the toggle button (D) to move the LED to 

the final current (L) This can be adjusted from 5 to 

200AMPs. The value is displayed on the Multifunction 
display (G).

14)  Press the toggle button (D) to move the LED to 
the Post Gas time (M) This can be adjusted from 0.1 to 
10s. The value is displayed on the Multifunction display 
(G). 3s is a good initial setting.

15)  Press the toggle button (D) to move the LED to 
the AC frequency (P) This can be adjusted from 50 to 
250Hz dependant on the welding amperage. The value 
is displayed on the Multifunction display (G). 60hz is a 
good initial setting. Increasing the frequency has the 
effect of stiffening and focussing the arc making it good 

for welding close to threads or for crater filling

Note the maximum  frequency available depends upon 
the welding amperage selected 

<50A      

50 to 250Hz

50-100A   50-200Hz

100-150A    max 150Hz

150-200A   max 100Hz

16)  Press the toggle button (D) to move the LED 
to the AC balance (Q) This can be adjusted from 15 
to 50%. The value is displayed on the Multifunction 
display (G). 15% is a good initial setting. Increasing the 
percentage has the effect of increasing the time the 
arc spends in the electrode positive state which gives 
a greater cleaning effect on the material but will reduce 
weld speed. For good clean material you should be 
able to keep the cleaning percentage set at 15 to 20%.

You are now ready to weld. The above settings are 
a guide and you should adjust to suit the job you are 
welding if you are unfamiliar with the machine try to 
adjust only one parameter at a time so you become 
familiar with its effect.  

6.3.3 tIG Welding with pulse  

 

  

Function

It is possible to use the pulse function with both 
AC and DC  TIG welding Power Pulsing can give 

significant advantages on thinner material to control 

heat and penetration.

1) Follow the setup as previously described for AC or 
DC TIG welding.

2) Press button A to switch on the pulsing functions

6.3.2 aC tIG Welding (no pulse)

1) Connect the torch to the - connection and the gas 
hose to the gas outlet. 

2) Connect the trigger control plug on the torch to the 
trigger socket. 

3) Connect the Earth lead to the + connection.

4) Set the process mode to 2T or 4T if you prefer a 
latching trigger action. (Note in 4T position you must 
press and release to start the process and press and 
release again to stop the process) (A)

O

pera

t

IO

n

H

A

B

C

F

D

E

G

D

I

J

K

L

M

O

P

Q

5) Select AC output (B)

6) Select HF start (C)

7) Using the toggle buttons (D)move the illuminated 

LED to the gas pre-flow position (E)

8) Adjust the parameter value by rotating the knob (F) 
This can be adjusted from 0.1 to 1.0 seconds. The 
value is displayed on the Multifunction display (G)

9) Press the toggle button (D) to move the LED to 
the initial current (H) This can be adjusted from 5 to 
200AMPs. The value is displayed on the Multifunction 
display (G).

10) Press the toggle button (D) to move the LED to the 
slope up time (I) This can be adjusted from 0 to 10s. 
The value is displayed on the Multifunction display (G). 
2s is a good initial setting.

11) Press the toggle button (D) to move the LED to the 
main welding current  (J) This can be adjusted from 
5 to 200A. The value is displayed on the amperage 
display (O). Refer to the TIG welding guide for a 
recommended welding current.

12) Press the toggle button (D) to move the LED to 
the slope down time (K) This can be adjusted from 
0 to 10s. The value is displayed on the Multifunction 
display (G). 2s is a good initial setting.

Summary of Contents for XTT 202P

Page 1: ...OperatOr Manual ISSue 8 XTT 202P AC DC...

Page 2: ...maintenance this equipment should provide years of reliable service All our systems conform to ISO9001 2015 and are independently audited by NQA The entire product range carries the CE mark and is con...

Page 3: ...urn Lead Connection 7 5 7 Liquid Cooling 7 6 0 Operation 7 6 1 MMA Welding Guide 8 6 2 Basic TIG Welding Guide 8 6 3 Machine Setup for TIG Welding 9 6 3 1 DC TIG Welding no Pulse 9 6 3 2 AC TIG Weldin...

Page 4: ...health FuMeS anD GaSeS can be hazardous Keep your head out of the fumes Do not breathe the fumes If inside ventilate the area and or use local forced ventilation at the arc to remove welding fumes an...

Page 5: ...and cables as far away from your body as possible nOISe can damage hearing Noise from some processes or equipment can damage hearing Wear approved ear protection if noise level is high Shielding gas...

Page 6: ...to the fault finding section for further information 6 Gas Output connection This is a 3 8 BSP connection for the gas output connection to the welding torch TIG welding 7 negative connection This is u...

Page 7: ...ch one of the electrical input voltages shown on the input data label on the unit nameplate The XTT 202P AC DC machine should only be used on 230V supply Refer to the specifications table for voltage...

Page 8: ...weld or skip welding to distribute the heat Cast iron Most types of cast iron except white iron are weldable White iron because of its extreme brittleness generally cracks when attempts are made to w...

Page 9: ...position E 8 Adjust the parameter value by rotating the knob F This can be adjusted from 0 1 to 1 0 seconds The value is displayed on the Multifunction display G 9 Press the toggle button D to move t...

Page 10: ...with pulse Function It is possible to use the pulse function with both AC and DC TIG welding Power Pulsing can give significant advantages on thinner material to control heat and penetration 1 Follow...

Page 11: ...base setting 30 40Hz will help agitate the weld puddle and allow you to weld at a lower amperage than without pulse 50 150Hz really stiffen the arc and let you pinpoint the arc more than without pulse...

Page 12: ...electrodes used on heavy cold plate b Welding current is too low c Wrong electrode angle d Travel speed of electrode is too high e Scale or dirt on joint surface a Use larger electrodes and preheat t...

Page 13: ...line for gas flow problems Description possible Cause Remedy Arc flutters during TIG welding a Tungsten electrode is too large for the welding current b Absence of oxides in the Weld pool a Select th...

Page 14: ...to the machine and re start c Have a qualified service engineer inspect then repair the welder rOutIne MaIntenanCe The only routine maintenance required for the power supply is a thorough cleaning and...

Page 15: ...et Fitted with 5 8 BSP inlet connections Stock Code Description Maximum Outlet Pressure E700140 Argon Preset Regulator 3 0 Bar E700141 Argon Indicator Regulator 3 0 Bar E700113 1 Gauge Argon 30 lpm fl...

Page 16: ...O26 and PRO26FX Air Cooled Pro Grip TIG Welding Torch Rating 200A DC 150A AC 60 Duty Cycle EN60974 7 020 to 5 32 0 5mm 4 0mm Electrodes B 2 3 11 12 13 4 5 10 9 7 6 8 14 15 16 C D E A 1 18 17 1 A F G H...

Page 17: ...Description H 45V29 Gas Lens Body 020 0 5mm Bore 45V24 Gas Lens Body 040 1 0mm Bore 45V25 Gas Lens Body 1 16 1 6mm Bore 45V26 Gas Lens Body 3 32 2 4mm Bore 45V27 Gas Lens Body 1 8 3 2mm Bore Standard...

Page 18: ...SE The above listed products are certified to be compliant with the RoHS directive with all homogeneous component parts being controlled to ensure material contents as per the list below Cadmium 0 01...

Page 19: ...f the product determined by Parweld to be defective Parweld makes no other warranty express or implied This warranty is exclusive and in lieu of all others including but not limited to any warranty of...

Page 20: ...Parweld Limited Bewdley Business Park Long Bank Bewdley Worcestershire England DY12 2TZ tel 44 1299 266800 fax 44 1299 266900 www parweld co uk info parweld co uk...

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