HP HP 8753E, User Manual, Page: 7 / 699

General Safety Considerations
Note This instrument has been designed and tested in accordance with IEC
Publication 1010, Safety Requirements for Electronics Measuring Apparatus,
and has been supplied in a safe condition. This instruction documentation
contains information and warnings which must be followed by the user to
ensure safe operation and to maintain the instrument in a safe condition.
Warning This is a Class I product (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 the instrument,
is likely to make the instrument dangerous. Intentional interruption is
prohibited.
Warning No operator serviceable parts inside. Refer servicing to qualified
personnel. lb prevent electrical shock, do not remove covers.
Caution Before switching on this instrument, make sure that the line voltage selector
switch is set to the voltage of the power supply and the correct fuse is
installed. Assure the supply voltage is in the specified range.
Warning The opening of covers or removal of parts is likely to expose dangerous
voltages. the instrument from all voltage sources while it is
opened.
W a r n i n g The power cord is connected to
capacitors that may remain live
for 10 seconds after disconnecting the plug from its power supply.
Warning For continued protection against hazard replace line fuse only with
same type and rating The use of other fuses or material is
prohibited.
Warning lb prevent electrical shock, disconnect the HP 87533 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.
Warning
If this product is not used as the protection provided by the
equipment could be impaired. This product must be used in a normal
condition (in which all means for protection are intact) only.
Warning Always use the three-prong AC power cord supplied with this product.
to ensure adequate earth grounding by not using this cord may
cause product damage.