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Keysight 3458A Multimeter




User's Guide
U.S. Government Restricted Rights
The Software and Documentation have been developed entirely at private expense. They are delivered and licensed as "commercial
computer software" as defined in DFARS 252.227- 7013 (Oct 1988), DFARS 252.211-7015 (May 1991) or DFARS 252.227-7014 (Jun
1995), as a "commercial item" as defined in FAR 2.101(a), or as "Restricted computer software" as defined in FAR 52.227-19 (Jun
1987)(or any equivalent agency regulation or contract clause), whichever is applicable. You have only those rights provided for such
Software and Documentation by the applicable FAR or DFARS clause or the Keysight standard software agreement for the product
involved.




3458A Multimeter User's Guide




2
Documentation History
All Editions and Updates of this manual and their creation date are listed below. The first Edition of the manual is Edition 1. The Edition
number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to
correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the
Update information for the previous Edition. Each new Edition or Update also includes a revised copy of this documentation history page.
Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . May, 1988
Update 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . February, 1992
Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . October, 1992
Edition 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . February, 1994
Edition 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . December, 2000
Edition 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . May, 2012
Edition 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . April, 2013
E dition 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A ug ust, 20 14
Safety Symbols

Instruction manual symbol affixed to
product. Indicates that the user must refer to Alternating current (AC)
the manual for specific WARNING or
CAUTION information to avoid personal Direct current (DC).
injury or damage to the product.
WARNING, RISK OF ELECTRIC SHOCK.
Indicates the field wiring terminal that must
be connected to earth ground before
operating the equipment -- protects against
electrical shock in case of fault. Calls attention to a procedure, practice, or
WARNING condition that could cause bodily injury or
Frame or chassis ground terminal--typically death.
or connects to the equipment's metal frame.
Calls attention to a procedure, practice, or
CAUTION condition that could possibly cause damage to
equipment or permanent loss of data.


WARNINGS
The following general safety precautions must be observed during all phases of operation, service, and repair of this product. 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 product. Keysight Technologies assumes no liability for the customer's failure to comply with these requirements.
Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), an uninterruptible safety earth
ground must be provided from the mains power source to the product input wiring terminals or supplied power cable.
DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes.
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
use repaired fuses or short-circuited fuse holders.
Keep away from live circuits: Operating personnel must not remove equipment covers or shields. Procedures involving the removal of
covers or shields are for use by service-trained personnel only. Under certain conditions, dangerous voltages may exist even with the
equipment switched off. To avoid dangerous electrical shock, DO NOT perform procedures involving cover or shield removal unless you
are qualified to do so.
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 Keysight for service and repair to
ensure that safety features are maintained.
DO NOT service or adjust alone: Do not attempt internal service or adjustment unless another person, capable of rendering first aid and
resuscitation, is present.
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 Keysight for service and repair to ensure that
safety features are maintained.
Measuring high voltages is always hazardous: ALL multimeter input terminals (both front and rear) must be considered hazardous
whenever inputs greater than 42V (dc or peak) are connected to ANY input terminal.
Permanent wiring of hazardous voltage or sources capable of delivering grater than 150 VA should be labeled, fused, or in some other
way protected against accidental bridging or equipment failure.
DO NOT leave measurement terminals energized when not in use.
DO NOT use the front/rear switch to multiplex hazardous signals between the front and rear terminals of the multimeter.


3
DECLARATION OF CONFORMITY
According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014



Manufacturer's Name: Agilent Technologies, Incorporated
Manufacturer's Address: 815 14th ST. S.W.
Loveland, CO 80537
USA


Declares, that the product

Product Name: Multimeter
Model Number: 3458A
Product Options: This declaration covers all options of the above product(s).

Conforms with the following European Directives:
The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC
(including 93/68/EEC) and carries the CE Marking accordingly

Conforms with the following product standards:


EMC Standard Limit
IEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998
CISPR 11:1990 / EN 55011:1991 Group 1 Class A
IEC 61000-4-2:1995+A1:1998 / EN 61000-4-2:1995 4kV CD, 8kV AD
IEC 61000-4-3:1995 / EN 61000-4-3:1995 3 V/m, 80-1000 MHz
IEC 61000-4-4:1995 / EN 61000-4-4:1995 0.5kV signal lines, 1kV power lines
IEC 61000-4-5:1995 / EN 61000-4-5:1995 0.5 kV line-line, 1 kV line-ground
IEC 61000-4-6:1996 / EN 61000-4-6:1996 3V, 0.15-80 MHz I cycle, 100%
IEC 61000-4-11:1994 / EN 61000-4-11:1994 Dips: 30% 10ms; 60% 100ms
Interrupt > 95%@5000ms
Canada: ICES-001:1998
Australia/New Zealand: AS/NZS 2064.1
The product was tested in a typical configuration with Agilent Technologies test systems.



Safety IEC 61010-1:1990+A1:1992+A2:1995 / EN 61010-1:1993+A2:1995
Canada: CSA C22.2 No. 1010.1:1992
UL 3111-1: 1994




8 March 2001
Date Ray Corson
Product Regulation Program Manager


For further information, please contact your local Agilent Technologies sales office, agent or distributor.
Authorized EU-representative: Agilent Technologies Deutschland GmbH, Herrenberger Strabe 130, D 71034 B