Keysight N1913/1914A User’s Guide 9
General Safety Information
This is a Safety Class I instrument (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 is likely to damage the meter.
Intentional interruption is prohibited.
– Do not operate the instrument in an explosive atmosphere or in the
presence of flammable gasses 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 the meter
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 instrument switched off. To avoid
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 instrument: Whenever it is possible that the
safety protection features built into this instrument have been impaired,
either through physical damage, excessive moisture, or any other reason,
REMOVE POWER and do not use the instrument until safe operation can
be verified by service-trained personnel. If necessary, return the
instrument to a Keysight Technologies Sales and Service Office for
service and repair to ensure the safety features are maintained.
– Do not substitute parts or modify the instrument: Because of the danger
of introducing additional hazards, do not install substitute parts or
perform any unauthorized modification to the instrument. Return the
instrument to a Keysight Technologies Sales and Service Office for
service and repair to ensure the safety features are maintained.
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