Safety Considerations - Keysight Technologies 8990B User Manual

Safety Considerations

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 instrument.
Intentional interruption is prohibited.
– Do not operate the instrument in an explosive atmosphere or in the
WARNING
– Do not use repaired fuses or short-circuited fuseholders. For continued
– Do not perform procedures involving cover or shield removal unless you
– Do not service or adjust alone. Under certain conditions, dangerous
– Do not operate damaged instrument. Whenever it is possible that the
– Do not substitute parts or modify the instrument. Because of the danger
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presence of flammable gasses or fumes.
protection against fire, replace the line fuse(s) only with fuse(s) of the
same voltage and current rating and type.
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.
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.
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 Keysight for service and repair to ensure the safety features
are maintained.
of introducing additional hazards, do not install substitute parts or
perform any unauthorized modification to the instrument. Return the
instrument to Keysight for service and repair to ensure the safety features
are maintained.
Keysight 8990B User's Guide