General Information; Options; Description; Specifications - HP 3456A Operating And Service Manual

1·1. INTROOUCTlON.
1-2. The information contained in this Manual is for
the Installation, Operation, HP-IS Programming and
Service of the Hewlen·Packard Model 3456A Digital
Voltmeter.
NOTE
is
HP-IB Hewlelt-Packard ' s implementation
488-1975,
of IEEE Std.
Interface for Programmable Instrumenta­
tiOn . . .
1 - 3 . The Installation, Operating, and HP-IS Program­
ming information in Ihis Manual is also contained in the
Operating Manual.
14. This section in the manual contains general infor­
mation concerning the 3456A Digital Voltmeter. Includ­
ed are instrument description, specifications, sup­
plemental characteristics. instrument and manual iden­
tification, options, accessories, and other information
on the instrument.
1·5. DESCRIPTION.
1-6. The Hewlett-Packard Model 3456A is a versatile
Digital Voltmeter with ac, dc, ohms, and various math
functions. This voltmeter is an excellent bench meter
and since it is remotely programmable it is an excep­
tional system measurement device. Other features for
which you may have some good uses are the selection of
power line cycles integrated. the selection of certain
number of readings/trigger, seltling delay, ratio, and
other unique and useful functions.
1-7. The 3456A also employs a feature called AUTO
ZERO. This feature of the instrument is very useful for
good stability_ The internal reference device and
reference resistors are also selected for good accuracy
and stability. Another good feature is the TEST func­
tion of the 3456A. With this function the instrument's
operation can be partially verified for correct operation
by the operator.
I·B.

SPECIFICATIONS.

1-9. Specifications of the 3456A are the performance
SECTION I

GENERAL INFORMATION

"Standard Digital
characteristics of the instrument which are warranted.
These specifications are listed in Table
performance standards or limits against which the in­
strument can be tested. Included in Table 1-1 are also
some supplemental characteristics of the 3456A and
should be considered as additional and general informa­
tion for you, the user. Because of the many operational
capablities of the 3456A, exercise care when determin­
ing the instrument's specifications.
1-10. Any changes in the specifications due to manufac­
turing changes. design, or traceability to the National
Bureau of Standards will be covered in a manual change
supplement or revised manual pages. The specifications
listed here supercede any previously published.
1·11. INSTRUMENT ANO MANUAl IOENTlFICATION.
1-12. Instrument identification is by a serial number
located on the rear panel of the instrument. Hewlett­
Packard uses a two-part serial number. The first part
(prefix) identifies a series of instruments and the last
part (suffix) identifies a particular instrument within a
series. A letter between the prefix and suffix identifies
the country in which the 3456A is manufactured.
1-l3. This manual applies to instruments with serial
number indicated on the title page. Updating of the
manual is accomplished either by a change sheet or
revised pages.
1·14. OPTIONS.
1-15. The following options are available for use with
the 34S6A:
Option 350: for 50 Hz Power Source
Option 360: for 60 Hz Power Source
907:
Option Front Handle Kit
9OB:
Option Rack Mounting Kit
909:
Option Front Handle and Rack Mounting Kit
Option 910: Additional Set of Manuals
1·16. ACCESSORIES SUPPLIED.
1-17. The 34S6A is supplied with a 3/B amp, 250V fuse
for the 220V and 240V power line voltages.
I-I,
and are the
Rev B 1-1