SAFETY
HYPERTHERM Plasma Systems
1-1
10/24/96
About Notes, Cautions and Warnings
Notes:
Throughout this manual, useful information for operating the plasma system is presented in “notes”,
such as shown in this paragraph.
Cautions: Information in bold type and surrounded by a box describes a situation that may cause
damage to the plasma system.
Before using this plasma arc system. . . .
Each person who will operate this equipment, perform
service or maintenance, or supervise its use must read
the safety instructions and warnings in this manual and
the labels on the equipment.
WARNINGS
Warnings describe situations that present a physical danger to the operator, and advice to avoid or
correct the situation. Each type of warning includes applicable danger symbols, such as a hand burn,
electrical shock, fire, explosion, etc.
WARNING —
Electric Shock
• Never touch the torch body, workpiece or the water in
a water table when operating the plasma system.
• When using a water table, be sure that it is correctly
connected to earth ground.
• Operating the plasma system completes an electrical
circuit between the torch and the workpiece and
anything touching the workpiece. The workpiece is part
of the electrical circuit.
WARNING —
Instant-On
Torches
Instant-on torches produce a plasma
arc immediately after the torch switch
is pushed.
Always hold a hand torch away from
your body as a precaution against
accidental torch firing. Be aware of
this hazard, which has potential for
serious bodily injury.
In this section:
About Notes< Cautions and Warnings .................... 1-1
Safety Instructions ................................................... 1-2
Eye Protection .................................................. 1-2
Skin Protection ................................................. 1-2
Toxic Fume Prevention ..................................... 1-2
Fire Prevention ................................................. 1-2
Electric Shock Prevention ................................. 1-2
Explosion Prevention ........................................ 1-3
Compressed Gas Cylinders .......................... 1-3
Section 1 SAFETY