Agilent Technologies 4418B Service Manual page 8

Equipment Operation
General Safety Considerations
WARNING
Caution
Markings
ISM
vi
Before this instrument is switched on, make sure it has been properly
grounded through the protective conductor of the ac power cable to a
socket outlet provided with protective earth contact.
Any interruption of the protective (grounding) conductor, inside or
outside the instrument, or disconnection of the protective earth terminal
can result in personal injury.
Any adjustments or service procedures that require operation of the
instrument with protective covers removed should be performed only by
trained service personnel.
The CE mark shows that the product complies with all the
relevant European legal Directives (if accompanied by a
year, it signifies when the design was proven.
This is the symbol of an Industrial Scientific and Medical
Group 1
Group 1 Class A product.
Class A
The CSA mark is a registered trademark of the Canadian
Standards Association.
External Protective Earth Terminal.
While this is a Class I product, provided with a protective
earthing conductor in a power cord, an external protective
earthing terminal has also been provided. This terminal is for
use where the earthing cannot be assured. At least an 18AWG
earthing conductor should be used in such an instance, to
ground the instrument to an assured earth terminal.
Agilent E4418B/E4419B Service Guide