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Model 432A Regulatory Information
General Safety
The following general safety precautions must be observed during all phases of operation, service,
and repair of this instrument. Failure to comply with these precautions or with specific warnings
elsewhere in this manual violates safety standards of design, manufacture, and intended use of
the instrument. Hewlett-Packard Company assumes no liability for the customer’s failure to
comply with these requirements.
WARNING This is a Safety Class I instrument (provided with a protective earthing ground,
incorporated in the powercord). 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 make the instrument dangerous.
Intentional interruption is prohibited.
DO NOT operate the product 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 equipment 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 equipment switched off. To avoid dangerous 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 equipment: Whenever it is possible that the safety protection features
built into this product have been impaired, either through physical damage, excessive moisture,
or any other reason, REMOVE POWER and do not use the product until safe operation can be
verified by service-trained personnel. If necessary, return the product to a Hewlett-Packard Sales
and Service Office for service and repair to ensure the safety features are maintained.
DO NOT substitute parts or modify equipment: Because of the danger of introducing additional
hazards, do not install substitute parts or perform any unauthorized modification to the product.
Return the product to a Hewlett-Packard Sales and Service Office for service and repair to ensure
the safety features are maintained.
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