User`s guide

34450A User’s Guide V
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.
WARNING
• Do not defeat the power cord safety ground feature. Plug in to a grounded
(earthed) outlet.
• Do not use the instrument in any manner that is not specified by the
manufacturer.
• To avoid electric shock or injury, do not operate the multimeter without panels or
case in place.
• Do not substitute parts or modify the instrument to avoid the danger of
introducing additional hazards. Return the instrument to Keysight Technologies
Sales and Service Office for service and repair to ensure the safety features are
maintained.
• Main Power and Test Input Disconnect: Unplug the instrument from the 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.
• Line and Current Protection Fuses: For continued protection against fire, replace
the line fuse and the current-protection fuse only with fuses of the specified type
and rating.
• IEC Measurement Category II. The HI and LO input terminals may be 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.
• Protection limits: To avoid instrument damage and the risk of electric shock, do
not exceed any of the Protection Limits defined in the following section.
• If the Test Lead Set is used in a manner not specified by Keysight Technologies,
the protection provided by the Test Lead Set may be impaired. Also, do not use a
damaged or worn Test Lead Set. Instrument damage or personal injury may
result.