R-Tech PLASMA P31C Operation Instructions Manual

R-Tech PLASMA P31C Operation Instructions Manual

Inverter plasma cutter

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www.r-techwelding.co.uk
Email: sales@r-techwelding.co.uk
Tel: 01452 733933
Fax 01452 733939
PLASMA P31C
INVERTER PLASMA CUTTER
OPERATION INSTRUCTIONS
Version 2021-11

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Summary of Contents for R-Tech PLASMA P31C

  • Page 1 Email: sales@r-techwelding.co.uk Tel: 01452 733933 Fax 01452 733939 PLASMA P31C INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS Version 2021-11...
  • Page 3 Thank you for selecting the R-Tech Plasma 31C Inverter Plasma Cutter The Plasma 31C has many benefits over traditional transformer plasma cutters, including infinite power control, HF contact start and quick fitting cost effective torch, long-life cost-effective torch consumables and a 35% industrial duty cycle We want you to take pride in operating our Plasma 31C as much pride as we have taken in making this product for you.
  • Page 4: Technical Specifications

    Cutting Capability – Duty Cycle The R-Tech Plasma 31C is rated at 30 Amps at 35% duty cycle on a ten-minute basis. If the duty cycle is exceeded a thermal protector will shut machine off until the machine cools.
  • Page 5: Safety Precautions

    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.
  • 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 for 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 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 31C Plasma Cutters requires a 240V 50/60Hz 1-Phase supply. It requires an 13A supply.
  • Page 8 Connections for Plasma 31C Air pressure connection / setting 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 - Set air pressure to70psi when air is flowing through torch.
  • Page 9 Rear machine connections 1. On / Off Switch Turns machine on and off, the switch illuminates when machine turned on 2. Mains input cable Fit required plug as per your electrical installation 3. 2 Earth Connector This can be used to earth the machine to workbench if you are experiencing interference from the HF –...
  • Page 10 Front machine connections 1. Torch power connector Connect the main torch cable and screw clockwise until tight 2. Torch switch socket Connect the torch switch plug (2 pin) and screw on retaining ring to secure 3. Earth / Workpiece connector Connect the earth lead to this connector.
  • Page 11: Controls And Settings

    5. Power warning light This lights when machine has sensed and internal problem with machine. Turn off machine and contact R-Tech technical support 6. Air pressure gauge Displays air pressure in PSI 7.
  • Page 13: 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 14 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, the power light will light up and cooling fan starts running 3. Press torch switch, air will flow from torch head, now set the air pressure in gauge using adjuster on regulator on machine to 70PSI Once the correct air pressure has been set press down the adjuster on air regulator.
  • Page 15 Replacing torch consumables WARNING! ELECTRIC SHOCK CAN KILL Please ensure machine is turned off before changing consumables If cutting performance is poor, please 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 16: Maintenance

    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.
  • Page 17 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 18 Fit new consumables as per instructions earlier in this manual Plasma Torch Consumables parts list R-Tech Torch Spares Plasma 31C Part No. Electrode...

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