Hypertherm HT4100 Plasma Arc Cutting System Operating - Manual (Page 12)

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SAFETY
HT4100 Instruction Manual: Operation
SAFETY INSTRUCTIONS
Burn Prevention
To protect eyes against burns caused by high-intensity ultraviolet light, sparks and
hot metal:
• Wear dark safety glasses/goggles with side shields or a welding helmet. Refer to
the chart below for recommended lens shades:
Arc Current Shield Shade
Up to 100 Amps Shade No. 8
100 - 200 Amps Shade No. 10
200 - 400 Amps Shade No. 12
Over 400 Amps Shade No. 14
• Replace the glasses/goggles or helmet when the shield becomes pitted or
broken.
• Warn other people in the area not to look directly at the arc unless they wear a
glasses/goggles or helmet.
• Prepare the cutting area in a manner that reduces the reflection and transmission
of ultraviolet light:
- Paint walls and other surfaces with dark colors to reduce reflection.
- Install protective screens or curtains to reduce ultraviolet transmission.
To protect skin against burns caused by high-intensity ultraviolet light, sparks and hot
metal:
• Wear protective clothing:
- Gauntlet gloves, safety shoes and hat.
- Flame-retardant clothing which covers all exposed areas.
- Cuffless trousers to prevent entry of sparks and slag.
• Hold any hand torch away from your body when pressing the start button because
the pilot arc may come on immediately.
Eye
Safety
Skin
Safety