Symbols; Impaired Safety - Fluke PM2811 User Manual

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1.4 SYMBOLS

Symbol Meaning of symbol
See explanation in manual
Earth
Conformité Européenne

1.5 IMPAIRED SAFETY

Whenever it is likely that safety has been impaired, the instrument must be turned
off and disconnected from line power. The matter should then be referred to
qualified technicians. Safety is likely to be impaired if, for example, the instrument
does not output the expected power or shows visible damage.
Users Manual