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12

Operating Machine 

Please ensure all torch consumables are tight before use

 

1. Ensure machine has been setup as previously stated

2. Turn on the machine and the power light indicates and cooling fan is running

3. Set the function switch in the test gas position, air will flow from torch head, now set the air pressure in

gauge using adjuster on regulator on rear of machine to 

7

0PSI, Once the correct air pressure has been set

press down the adjuster on air regulator and set the function switch to the cutting position

4. Ensure earth clamp is connected to work piece or workbench ensuring a good clean point of contact

5. Select cutting amperage knob to desired cutting power (the following guide lines will vary in accordance to

material grade, characteristics and user operation)

a. 20 Amps for up to 6mm clean cut on mild steel

b. 30 Amps for up to 9mm clean cut on mild steel

c.

50 Amps for up to 18mm clean cut on mild steel, when cutting aluminium, alloys and stainless steel
cutting thickness is reduced by 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 switch to main cutting power. Once you
come to the end of cut on work piece the machine will sense this and turn off main cutting power and pilot
arc will re-engage, to stop cutting release switch.

7. Getting correct amperage / cutting speed for desired job.

8. The combination of correct cutting amperage and travel speed can change per user; here are some tips on

obtaining optimum settings.

9. Blow back when cutting, If you experience blow back and the metal is not cut all the way through, you either

are traveling too fast or you need to increase the cutting amperage

10. Cutting arc is erratic and work is being cut all way through. You are traveling too slow or cutting with too high

amperage for work.

11. It can take a while to get used to plasma cutting if never done before. Experiment with settings on some

scrap material until you find the best amperage / cutting speed for user.

12. If you ever have any questions on settings call us and speak to one of our experienced technicians who will

be happy to help you.

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...

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