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smaller than recommended will result in ‘nuisance’ shut off from welder inrush currents even if 
cutting 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 Plasma 80HF Plasma Cutters require a 415V 3 Phase 50/60Hz supply. It requires an 17.6 
Amp supply. It comes with a 3 metre mains cable attached. 
 
Connect wires according to national coding. 
 
Brown wire – Live 
Blue wire – Live 
Black wire- Live 
Green/Yellow Wire – Earth (Ground) 

 
 

Connecting to a mains electrical supply 

 

THIS MACHINE IS OF AN INDUSTRIAL SPECIFICATION AND MUST BE 

FITTED TO A 32AMP 415V MAINS INPUT  

 

 

 

Connecting to an Engine Driven Generator

 

 

If connecting this Plasma Cutter to an engine driven generator please 

ensure the following 

 

Minimum Generator KVA Output – 19 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. 

 
 
 
 
 
 
 
 
 
 

Summary of Contents for PLASMA 80HF

Page 1: ...www r techwelding co uk Email sales r techwelding co uk Tel 01452 733933 Fax 01452 733939 PLASMA 80HF INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS...

Page 2: ...2 Thank you for selecting the R Tech Plasma 80HF Inverter Plasma Cutter...

Page 3: ...n be found on data plate at rear of machine Product Plasma 80HF Serial No ___________________________________ Date of Purchase _____________________________ Where Purchased ___________________________...

Page 4: ...of 80 Amps DC Equipment Limitations The R Tech Plasma 80HF is protected from overloads beyond the output ratings and duty cycle as per machine specifications with thermostat protection of the output c...

Page 5: ...eratures which can lead to plant failure Grinding Do not direct grinding particles towards the plasma cutter An abundance of conductive material can cause plant failure Stacking This machine cannot be...

Page 6: ...ep 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...

Page 7: ...asma Cutters require a 415V 3 Phase 50 60Hz supply It requires an 17 6 Amp supply It comes with a 3 metre mains cable attached Connect wires according to national coding Brown wire Live Blue wire Live...

Page 8: ...to adjust pressure once correct pressure is obtained press down knob to secure 2 Air pressure input Screw supplied PCL fitting into regulator ensuring no air leaks You can also fit other connectors to...

Page 9: ...e until tight Secure other end of earth lead to Workpiece via the earth clamp 2 Fuse holder Pilot Arc Protection Protection fuse for pilot arc start 3 Torch switch socket Connect the torch switch plug...

Page 10: ...ows the machine to be calibrated to BS if required by your company 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...

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: ...the pilot arc is in contact with the workpiece it will sense this and switch to main cutting power Once you come to the end of cut workpiece the machine will sense this and turn off main cutting powe...

Page 13: ...ooled down to avoid burns 3 Unscrew the pink ceramic shroud 4 Remove the silver cutting tip 5 Check the condition of cutting electrode replace cutting electrode if tip is worn 1 2 mm and end is concav...

Page 14: ...working 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 pressur...

Page 15: ...orch consumables and replace if worn Check pilot arc protecting fuse on front panel of machine and replace if blow If fuse keeps blowing contact R Tech for repair replacement torch Please ensure machi...

Page 16: ...n air compressor clean water out of air lines empty water trap by pressing water release button on bottom of air regulator water trap Fit new consumables as per instructions earlier in this manual Pla...

Page 17: ...17 Plasma torch switch TS1 Wiring Diagram...

Page 18: ...18...

Page 19: ...19...

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