Safety Symbols
The following symbols on the instrument and in the documentation indicate precautions which must be taken to maintain safe operation of the instrument.
| Direct current (DC) |
| Off (supply) |
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| Alternating current (AC) |
| On (supply) |
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| Both direct and alternating current |
| Caution, risk of electric shock |
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| Caution, risk of danger (refer to this | |
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| manual for specific Warning or Caution |
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| information) |
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| Earth (ground) terminal |
| Caution, hot surface |
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| Protective conductor terminal |
| Out position of a |
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| Frame or chassis terminal |
| In position of a |
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| Equipotentiality | CAT I | Measurements performed on circuits |
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| not directly connected to MAINS |
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| Equipment protected throughout by |
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| double insulation or reinforced |
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| insulation |
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U2751A User’s and Service Guide | III |
