General Safety Information
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. Keysight
Technologies assumes no liability for the customer's failure to comply with these
requirements.
– Do not defeat the power cord safety ground feature. Plug in to a grounded
WARNING
– Do not use the instrument in any manner that is not specified by the
– To avoid electric shock or injury, do not operate the multimeter without
– Do not substitute parts or modify the instrument to avoid the danger of
– Main Power and Test Input Disconnect: Unplug the instrument from the
– Line and Current Protection Fuses: For continued protection against fire,
– IEC Measurement Category II. The HI and LO input terminals may be
Keysight 34450A User's Guide
(earthed) outlet.
manufacturer.
panels or case in place.
introducing additional hazards. Return the instrument to Keysight
Technologies Sales and Service Office for service and repair to ensure the
safety features are maintained.
wall outlet, remove the power cord, and remove all probes from all
terminals before servicing. Only qualified, service-trained personnel
should remove the cover from the instrument.
replace the line fuse and the current-protection fuse only with fuses of
the specified type and rating.
connected to mains in IEC Category II installations for line voltages up to
300 VAC. To avoid the danger of electric shock, do not connect the inputs
to mains for line voltages above 300 VAC. See "IEC Measurement
Category II Overvoltage Protection" on the following page for further
information.
5