Lakeshore Learning Materials 622 Manuel d'utilisateur Page 10

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Lake Shore Model 620/622/623/647 Magnet Power Supply User’s Manual
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viii
SAFETY SYMBOLS
Direct current (power line).
Alternating current (power line).
Alternating or direct current (power line).
Three-phase alternating current (power line).
Earth (ground) terminal.
Protective conductor terminal.
Frame or chassis terminal.
On (supply)
Off (supply)
Equipment protected throughout by
double insulation or reinforced
insulation (equivalent to Class II of
IEC 536 - see annex H).
Caution: High voltages; danger of
electric shock. Background color:
Yellow; Symbol and outline: Black.
Caution or Warning - See
instrument documentation.
Background color: Yellow; Symbol
and outline: Black.
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