Personal Safety Warnings; Safety Earth Ground - Keysight N9912A Service Manual

Repair and Replacement Procedures

Personal Safety Warnings

Personal Safety Warnings
These servicing instructions are for use by qualified personnel only.
To avoid electrical shock, do not perform any servicing unless you
are qualified to do so.
Danger of explosion if battery is incorrectly replaced. Replace only
with the same or equivalent type recommended. Discard used
batteries according to manufacturer's instructions.

Safety Earth Ground

This is a Safety Class I product (provided with a protective earthing
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, will make the instrument dangerous.
Intentional interruption is prohibited.
Always use the three-prong AC power cord supplied with this product.
Failure to ensure adequate grounding by not using this cord may cause
product damage.
7-2 Keysight N9912A Service Guide