Keysight E4416A Installation Manual page 6

This is a Safety Class I instrument (provided with a protective earthing
WARNING
ground, incorporated in the power cord). The mains plug shall only be
inserted in a socket outlet provided with a protective earth contact. Any
interruption of the protective conductor inside or outside of the instrument is
likely to make the instrument dangerous. Intentional interruption is
prohibited.
DO NOT operate the product in an explosive atmosphere or in the presence
of flammable gases or fumes.
DO NOT use repaired fuses or short-circuited fuseholders: For continued
protection against fire, replace the line fuse(s) only with fuse(s) of the same
voltage and current rating and type.
DO NOT perform procedures involving cover or shield removal unless you are
qualified to do so: Operating personnel must not remove equipment covers
or shields. Procedures involving the removal of covers and shields are for
use by service-trained personnel only.
DO NOT service or adjust alone: Under certain conditions, dangerous
voltages may exist even with the equipment switched off. To avoid
dangerous electrical shock, service personnel must not attempt internal
service or adjustment unless another person, capable of rendering first aid
and resuscitation, is present.
DO NOT operate damaged equipment: Whenever it is possible that the
safety protection features built into this product have been impaired, either
through physical damage, excessive moisture, or any other reason, REMOVE
POWER and do not use the product until safe operation can be verified by
service-trained personnel. If necessary, return the product to a Keysight
Sales and Service Office for service and repair to ensure the safety features
are maintained.
DO NOT substitute parts or modify equipment: Because of the danger of
introducing additional hazards, do not install substitute parts or perform any
unauthorized modification to the product. Return the product to a Keysight
Sales and Service Office for service and repair to ensure the safety features
are maintained.
6 Keysight E4416A and E4417A Installation Guide