STAMOS S-PLASMA 55H Manual De Instrucciones página 36

that can catch and hold molten metal or sparks.
• Keep clothing free of grease, oil, solvents, or any flammable substances. Wear dry,
insulating gloves and protective clothing.
• Wear an approved head covering to protect the head and neck. Use aprons, cape,
sleeves, shoulder covers, and bibs designed and approved for welding and cutting
procedures.
• When welding/cutting overhead or in confined spaces, wear flame resistant ear
plugs or ear muffs to keep sparks out of ears.
• Prevent accidental fires. Remove any combustible material from the work area.
• When possible, move the work to a location well away from combustible; protect
the combustibles with a cover made of fire resistant material.
• Remove or make safe all combustible materials for a radius of 35 feet (10 meters)
around the work area. Use a fire resistant material to cover or block all open
doorways, windows, cracks, and other openings.
• Enclose the work area with portable fire resistant screens. Protect combustible
walls, ceilings, floors, etc., from sparks and heat with fire resistant covers.
• If working on a metal wall, ceiling, etc., prevent ignition of combustibles on the
other side by mobbing the combustibles to a safe location. If relocation of combu-
stibles is not possible, designate someone to serve as a fire watch, equipped with
a fire extinguisher, during the welding process and for at least one half hour after
the welding is completed.
• Do not weld or cut on materials having a combustible coating or combustible in-
ternal structure, as in walls or ceilings, without an approved method for eliminating
the hazard.
• Do not dispose of hot slag in containers holding combustible materials. Keep a fire
extinguisher nearby and know how to use it.
• After welding or cutting, make a thorough examination for evidence of fire. Be
aware that easily visible smoke or flame may not be present for some time after
the fire has started.
• Provide adequate ventilation in work areas to prevent accumulation of flammable
gases, vapors, and dust. Do not apply heat to a container that has held an unknown
substance or a combustible material whose contents, when heated, can produce
flammable or explosive vapors. Clean and purge containers before applying heat.
Vent closed containers, including castings, before preheating, welding, or cutting.
• Avoid overexposure to fumes and gases. Always keep your head out of the fumes.
Do not breathe the fumes. Use enough ventilation or exhaust, or both, to keep
fumes and gases from your breathing zone and general area.
• Where ventilation is questionable, have a qualified technician take an air sampling
to determine the need for corrective measures. Use mechanical ventilation to
improve air quality. If engineering controls are not feasible, use an approved respi-
rator.
• Work in a confined area only if it is well ventilated, or while wearing an air-supplied
respirator.
• Have a recognized specialist in Industrial Hygiene or Environmental Services check
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Rev. 02.03.2017
the operation and air quality and make recommendations for the specific welding
or cutting situation.
• Always keep hoses away from welding/cutting spot. Examine all hoses and cables
for cuts, burns, or worn areas before each use. If any damaged areas are found,
replace the hoses or cables immediately.
• Read and understand all instructions and safety precautions as outlined in the
manufacturer's Manual for the material you will weld or cut.
• Proper cylinder care. Secure cylinders to a cart, wall, or post, to prevent them from
falling. All cylinders should be used and stored in an upright position. Never drop
or strike a cylinder. Do not use cylinders that have been dented. Cylinder caps
should be used when moving or storing cylinders. Empty cylinders should be kept
in specified areas and clearly marked "empty."
• Never use oil or grease on any inlet connector, outlet connector, or cylinder valves.
• Use only supplied Torch on this Inverter Air Plasma Cutter. Using components
from other systems may cause personal injury and damage components within.
• People with pacemakers should consult their physician(s) before using this pro-
duct. Electromagnetic fields in close proximity to a heart pacemaker could cause
interference to, or failure of the pacemaker.
• USE PROPER EXTENSION CORD. Make sure your extension cord is in good con-
dition. When using an extension cord, be sure to sue one heavy enough to carry
the current your product will draw. An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating. A 50 foot extension cord must
be at least 12 gauges in diameter, and a 100 foot extension cord must be at least
10 gauges in diameter. If in doubt, use the next heavier gauge. The smaller the gauge
number, the heavier the cord.
PLASMA
General information about plasma cutting.
Through the plasma torch high pressure gas passes, e.g. air, which escapes to the out-
side. In the middle of the gas channel there is negatively charged electrode and the
nozzle before it with the tip and swirl ring. Swirl ring turns the stream into rotation.
If the electrode is connected to the electricity, the cap contacts with the metal, it will
close the circuit and between the metal and the electrode the arc appears. Arc heats
up the gas to very high temperature, the fourth state of matter. This process initiates
a targeted stream of plasma, which has a temperature of 16.649 °C or more, and mo-
ving with speed of 6.096 m / s and can melt the metal. The plasma itself is electrically
conductive. Circuit, which closes the electric arc is closed as long as the electrode is
powered and the plasma is in contact with the metal. Cutting nozzle is equipped with
a second group of channels. These channels provide a steady stream of shielding gas
around the cutting area. Pressure of the gas stream controls the constant stream of
plasma radius. Note! This device is designed for use only compressed air as the "gas".
Current regulation
The automatic current suppression circuit protects against over-voltage up to the value
indicated in the technical datasheet.
Rev. 02.03.2017
EN EN
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