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108 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 3 Hz to 26.5 GHz
6 Service, Support, and Safety Information
Fuses and Circuit Breakers
Refer to individual instrument manuals for detailed information on operator accessible
fuses.
Agilent system cabinet power strips are equipped with a thermal circuit breaker for each
power phase. If one phase shorts or overloads, one or both of the circuit breakers in the
power strip trip. Unplug the power strip before trying to locate and correct the electrical
problem, then reset both circuit breakers on the power strip to restore power to the cabinet.
Maintenance
Safety symbols and Instrument Markings
Symbols and markings in manuals and on instruments alert you to potential risks, provide
information about conditions, and comply with international regulations. Tab le 6 defines the
symbols and markings you may find in a manual or on an instrument.
CAUTION
The detachable power cord is the disconnecting device. It disconnects the mains
circuit from the mains supply before other parts of the instrument or system. The
instrument front panel switch is only a standby switch and is not a line switch.
WARNING
Use only fuses with the required rated current, voltage, and specified type
(normal blow, time delay). Do not use repaired fuses or short-circuited fuse
holders. To do so could cause a shock or fire hazard.
WARNING
For continued protection against fire hazard, replace fuses and circuit breakers
only with the same type and ratings. The use of other fuses or circuit breakers or
materials is prohibited (IEC 348 clause 17.3.5.d).
WARNING
The premise wiring should have a system-dedicated circuit breaker in the mains
wiring for installation of the system.
WARNING
To prevent electrical shock, disconnect the instrument and/or system from
mains before cleaning. Use a dry cloth or one slightly dampened with water to
clean the external case parts. Do not attempt to clean internally.