International electrical symbols
Signifies that the instrument is protected by double or reinforced
insulation.
CAUTION - Risk of Danger! Indicates a WARNING and that the
operator must refer to the user manual for instructions before
operating the instrument in all cases where this symbol is marked.
Risk of electric shock. The voltage at the parts marked with this
symbol may be dangerous.
Ground/Earth
Important instructions to read and understand completely.
Important information to acknowledge.
Battery.
Fuse.
USB socket.
Compliance with the Low Voltage & Electromagnetic Compatibility
European directives (73/23/CEE & 89/336/CEE).
In the European Union, this product is subject to a separate collection
system for recycling electrical and electronic components In
accordance with directive WEEE 2002/96/EC.
Definition of measurement categories
CAT II:
For measurements performed on circuits directly connected to the
electrical distribution system. Examples are measurements on household
appliances or portable tools.
CAT III: For measurements performed in the building installation at the
distribution level such as on hardwired equipment in fixed installation and
circuit breakers.
CAT IV: For measurements performed at the primary electrical supply (<1000V)
such as on primary overcurrent protection devices, ripple control units, or
meters.
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