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.
| Equipment protected throughout by |
Direct current (DC) | double insulation or reinforced |
| insulation |
|
|
Alternating current (AC) | Off (supply) |
|
|
Both direct and alternating current | On (supply) |
|
|
Caution, risk of electric shock | |
|
|
| Caution, risk of danger (refer to this |
Earth (ground) terminal | manual for specific Warning or Caution |
| information) |
|
|
Protective conductor terminal | Caution, hot surface |
|
|
Frame or chassis terminal | Out position of a |
Equipotentiality
In position of a
III |