Model 432A Section I
1-3
1-7. OPERATING ENVIRONMENT.
1–8. This instrument is designed for indoor use only.
1–9. The module may be operated at temperatures from
0
˚C to 55˚C at altitudes of up to 4,600 m (15,000 ft). The
module may be operated in environments up to 95%
relative humidity to 40
˚C, but it should be protected from
temperature extremes which may cause condensation.
1–10. To ensure adequate cooling do not obstruct air
vents in the instrument cabinet.
1–11.
COOLING REQUIREMENTS.
1–12. To provide adequate cooling, an air gap of
approximately 75 mm should be maintained around the
instrument.
NOTE If the HP 432A is subject to HP Class B
condensation it is recommended that the
instrument be powered up for at least 30
minutes before normal operation is
possible.
CAUTION This instrument is designed for use in
Installation Category II and Pollution
Degree 2 per IEC 1010-1 and 644
respectively.
1–13. CLEANING.
1–14. To clean the module/instrument: Use a soft, clean
damp cloth to clean the front panel and side covers.
CAUTION Mains supply voltage fluctuations should
not exceed ±10% of the nominal selected
line voltage.
CAUTION Before switching on this instrument, make
sure that the line voltage slide switch is set
to the voltage of the power supply, and the
correct fuse is installed (see Figure 3–3).
Ensure the power supply voltage is in the
specified range.
WARNING Appliance coupler (mains input
powercord) is the power disconnect
device. Do not position the
instrument such that access to the
coupler is impaired.
WARNING For continued protection against fire
hazard, replace the line fuse only with
the same type and line rating
(T100 mA 250 V). The use of other
fuses or materials is prohibited.
WARNING If this instrument is not used as
specified, the protection provided by
the equipment could be impaired.
This instrument must be used in a
normal condition only (in which all
means for protection are intact).
WARNING No operator serviceable parts inside.
Refer servicing to qualified
personnel. To prevent electrical
shock do not remove covers.
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