Instrument Markings - Agilent Technologies E444 AU Series Installation Manual

Chapter 1
Safety and Regulatory Information

Instrument Markings

Safety
Earth
Ground
This is a Safety Class I product (provided with a protective earthing
terminal). An uninterruptible safety earth ground must be provided
from the main power source to the product input wiring terminals,
power cord, or supplied power cord set. Whenever it is likely that the
protection has been impaired, the product must be made inoperative
and secured against any unintended operation.
10
When you see this symbol on your instrument, you should
refer to the instrument's instruction manual for important
!
information.
This symbol indicates hazardous voltages.
The laser radiation symbol is marked on products that have
a laser output.
This symbol indicates that the instrument requires
alternating current (ac) input.
The CE mark is a registered trademark of the European
Community. If it is accompanied by a year, it indicates the
year the design was proven.
The CSA mark is a registered trademark of the Canadian
Standards Association.
This text indicates that the instrument is an Industrial
ISM1-A Scientific and Medical Group 1 Class A product (CISPR 11,
Clause 4).
This symbol indicates that the power line switch is ON.
This symbol indicates that the power line switch is OFF or
in STANDBY position.
This symbol indicates the product meets the Australian
Standards.
Installation Guide