APx515 B Series Audio Analyzer: Safety 7
Safety
Safety Information
Do NOT service or repair this equipment unless properly
qualified. Servicing should be performed only by a quali-
fied technician or an authorized Audio Precision distribu-
tor.
Do NOT defeat the safety ground connection. This equip-
ment is designed to operate only with an approved three-
conductor power cord and safety grounding. Loss of the
protective grounding connection can result in electrical
shock hazard from the accessible conductive surfaces of
this equipment.
Do NOT exceed mains voltage ratings. This equipment is
designed to operate only from a 50–60 Hz ac mains
power source at 100–240 Vac nominal voltage. The
mains supply voltage is not to exceed ±10 % of nominal
(90–264 Vac).
For continued fire hazard protection, fuses should be
replaced ONLY with the exact value and type indicated
on the rear panel of the instrument and discussed on page
24 of this booklet.
The International Electrotechnical Commission
(IEC 1010-1) requires that measuring circuit terminals
used for voltage or current measurement be marked to
indicate their Measurement Category. The Measurement
Category is based on the amplitude of transient or
impulse voltage that can be expected from the AC power
distribution network. This product is classified as Mea-
surement Category I, abbreviated “CAT I” on the instru-
ment front panel. This product should not be used within
Categories II, III, or IV. The APx515 measurement termi-
nals are rated for a maximum input of 125 Vpk, 88 Vrms
and are intended to be used for the measurement of audio
signals only.
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