Plasma cutter, small (Miller Spectrum 375) ID:52

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Type	Plasma Cutter
Make/Model	Miller ??
Serial number	??
Original owner	William
Loan status	Donated to Protospace
Arrival date	July 2012
Location	Welding/Metalworking Shop
Functional status	Working
Usage permissions	Open to Members & Friends
Certification	Demo/Notes Required
Wiki-ID	[[{{{id}}}]]
Label	1.0" 1.5" 2.0"

Usage Notes

• Cuts metal via plasma arc
• Eye protection must be worn at all times, (welding helmet or oxy/ace goggles suffice)
• Leather gloves/sleeves required
• Place workpiece on a raised surface, do not cut flush against floor or workbench
• Attach grounding clamp, ensure good contact (no paint)
• Set cutting power & air pressure according to workpiece thickness
• NEVER cut without air supply at sufficient pressure, requires airflow for cooling
• Flip up red trigger safety
• Trigger is dual-mode. Tapping trigger toggles air supply on/off. Holding trigger starts plasma arc/cut
• After cutting, let air flow for several seconds to cool tip before tapping off.
• Arc begins as low-power pre-arc before full-power arc when good contact through workpiece is established.
• After 5 seconds if good contact is not established, pre-arc shuts off as a safety feature. Pause and start pre-arc again.
• DO NOT make contact with tip to workplace, this melts the tip.
• Tips gradually wear out, are consumable.

• If breaker trips, breaker is 20A breaker on left electrical panel, very bottom left (might change, but look there first if it tripped). Tripped breaker switches are between on and off. Breakers must be turned all the way off before back on. Lower cutting power, lower duty cycle to avoid tripping breaker again.

Specs

• 120V, 20A
• Cuts max of 3/16" steel continuously. Will cut 1/2" very slowly, 25% duty cycle or the breaker will repeatedly blow.