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10

Controls and Settings 

Fig 1 

1.

 

Air pressure gauge

This shows the air pressure as set by regulator at rear of machine. This should be set to 

7

5

PSI when the test 

gas button is activated. 

2.

 

Amperage control knob

This adjusts the amperage (cutting power) from 20 to 50 amps Note: LED display will show cutting amperage 
when you are cutting.   

3.

 

L.E.D amperage display

When cutting this shows the actual cutting amperage 

4.

 

Test Gas / Cutting selector switch

When in the up position this is test gas mode, when setting air pressure switch to test gas so you obtain actual 
air flow cutting pressure When in the down position this is cutting mode, you can now   
start cutting  

5.

 

Auto / Standard switch

From  2017  this  option  is  no  longer  fitted  to  machine

 

6.

 

Indication of too low air pressure

The led will be 

light up

 when the air pressure is 

correct and ready for cutting, if the air pressure is too low

 the 

LED will go out and the 

machine will not work. Adjust pressure to correct 

7

5

psi

 in test gas mode

, led will 

light 

up 

and you can resume cutting.  

Summary of Contents for PLASMA 50HF

Page 1: ...www r techwelding co uk Tel 01452 733933 Fax 01452 733939 PLASMA 50HF INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS Version 2020 05 LT70...

Page 2: ...2...

Page 3: ...on can be found on data plate at rear of machine Product PLASMA 50HF Serial No ___________________________________ Date of Purchase _____________________________ Where Purchased ______________________...

Page 4: ...asma cutting processes within its output capacity of 50 Amps DC Equipment Limitations The R Tech PLASMA 50HF is protected from overloads beyond the output ratings and duty cycle as per machine specifi...

Page 5: ...ons can result in excessive operating temperatures which can lead to plant failure Grinding Do not direct grinding particles towards the plasma cutter An abundance of conductive material can cause pla...

Page 6: ...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 th...

Page 7: ...PECIFICATION AND MUST BEFITTED TO A 32AMP 240V MAINS INPUT DO NOT RUN ON 13AMP PLUG FAILURE TO RUN ON CORRECT SUPPLY WILL IN VALIDATE WARRANTY Connecting to an Engine Driven Generator If connecting th...

Page 8: ...r pressure input Screw supplied PCL fitting into regulator ensuring no air leaks You can also fit other connectors to suit your needs 3 2 nd Earth connection This can be used to earth the machine to w...

Page 9: ...st clockwise until tight Secure other end of earth lead to work piece via the earth clamp 2 FUSE Pilot arc fuse 3 Torch power connector Connect the main torch euro socket by locating and pushing in an...

Page 10: ...Test Gas Cutting selector switch When in the up position this is test gas mode when setting air pressure switch to test gas so you obtain actual air flow cutting pressure When in the down position thi...

Page 11: ...n be dangerous Keep your head out of fumes gases produced from welding Use ventilation or exhaust to remove fumes gases from breathing zone and general area WARNING WELDING SPARKS can cause fire or ex...

Page 12: ...approximately 20 6 Hold torch in starting position on work and press torch switch and the high frequency will initiate the pilot arc and contact with the work piece and machine will automatically swi...

Page 13: ...lowing procedure 1 Switch off machine 2 Ensure torch has cooled down to avoid burns 3 Unscrew the white ceramic shield cup 4 Remove the cutting tip 5 Check the condition of cutting electrode replace c...

Page 14: ...orking inside this equipment Do not touch electrically live parts 1 Periodically 3 6 months depending on use environment remove the side top panels of machine and clean out machine with a low pressure...

Page 15: ...release button on bottom of air regulator water trap Fit new consumables as per instructions earlier in this manual HF PCB Failure Contact R Tech for repair 5 Machine keeps overheating Warning light i...

Page 16: ...rt No P50L EL P50L CT1 P50L RN P50L SS Plasma 50HF Electrode Cutting tip Retaining nozzle Stand off spring Double pointed spacer Gas distributor P50L DPS Torch head assy P50L THH Torch Complete Hand H...

Page 17: ...17 Wiring Diagram...

Page 18: ...18...

Page 19: ...19...

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