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Summary of Contents for R-Tech PLASMA 50HF
- Page 1 Tel: 01452 733933 Fax 01452 733939 PLASMA 50HF INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS Version 2020-05 LT70...
- Page 3 HF contact start and quick fitting cost effective torch, long life cost effective torch consumables and a 60% industrial duty cycle We want you to take pride in operating our PLASMA 50HF 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.
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Page 4: Technical Specifications
Equipment Limitations The R-Tech PLASMA 50HF is protected from overloads beyond the output ratings and duty cycle as per machine specifications with thermostat protection of the output coils and rectifiers and is rated at 50 Amps at 60% duty cycle on a ten minute basis. - Page 5 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.
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Page 6: Electrical Installation
Electrical Installation WARNING! ELECTRIC SHOCK CAN KILL Machine grounding and High Frequency Interference Protection This plasma cutter must be grounded to earth. See national electrical codes fro proper grounding methods. The high frequency generator being similar to a radio transmitter may cause interference to radio, TV and other electronic equipment. - Page 7 The PLASMA 50HF Plasma Cutters require a 240V 50/60Hz 1-Phase supply. It requires an 32A fuse. It comes with a 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 BEFITTED TO A 32AMP 240V MAINS INPUT - DO NOT RUN ON 13AMP PLUG –...
- Page 8 Connections for PLASMA 50HF Rear Machine connections Fig 1 1. Air pressure regulating knob This regulates the air pressure as displayed in gauge on front of machine. To adjust pressure pull knob upwards and turn to adjust pressure, once correct pressure is obtained press down knob to secure.
- Page 9 Front machine connections Fig 2 1. Earth / Work piece connector Connect the earth lead to this connector. Insert male connector into socket and twist clockwise until tight. Secure other end of earth lead to work piece via the earth clamp. 2.
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Page 10: Controls And Settings
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 75PSI 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. -
Page 11: Operating Machine
Operating machine SAFETY PRECAUTIONS WARNING! ELECTRIC SHOCK CAN KILL Do not touch electrically live parts or electrode with skin or wet clothing. Insulate yourself from work and ground Always wear dry insulating gloves WARNING! FUMES AND GASES can be dangerous Keep your head out of fumes &... - Page 12 Operating Machine Please ensure all torch consumables are tight before use Ensure machine has been setup as previously stated Turn on the machine and the power light indicates and cooling fan is running 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 70PSI, Once the correct air pressure has been set press down the adjuster on air regulator and set the function switch to the cutting position Ensure earth clamp is connected to work piece or workbench ensuring a good clean point of contact...
- Page 13 Replacing torch consumables WARNING! ELECTRIC SHOCK CAN KILL Please ensure machine is turned off before changing consumables If cutting performance is poor you probably need to check / change the torch consumables. To change the plasma cutting consumables carry out the following procedure Switch off machine Ensure torch has cooled down to avoid burns Unscrew the white ceramic shield cup...
- Page 14 Maintenance Routine and periodic maintenance WARNING! ELECTRIC SHOCK CAN KILL Turn the input power OFF at the mains switch & fuse box and remove mains plug from socket before working on this equipment. Have a qualified electrician install & service this Plasma cutting equipment. Allow machine to sit for 5 minutes minimum after disconnection from mains power to allow the power capacitors to discharge before working inside this equipment.
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Page 15: Fault Diagnostics
HF PCB Failure –Contact R-Tech for repair Machine keeps overheating - Warning light is lit on machine Check if fan is running if not contact R-Tech for repair Check the cooling vents for obstruction; blow out machine with clean dry low pressure air supply. - Page 16 Plasma Torch Consumables parts list LT70 TYPE TORCH Plasma 50HF Part No. Electrode P50L-EL Cutting tip P50L-CT1 Retaining nozzle P50L-RN Stand off spring P50L-SS Double pointed spacer P50L-DPS Gas distributor P50L-GD P50L-THH Torch head assy P50L-6MHHT Torch Complete Hand Held 6M...
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Page 17: Wiring Diagram
Wiring Diagram...
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