Equipment information

Hewlett Packard 3478A Digital multimeter
Manufacturer
Hewlett Packard
Model 3478A
Date 1981
Category: Measurement instruments
Group Digital multimeter
Description
Information
                                    Your new 3478A is a fully programmable HP-IB* digital
multimeter.
In an automatic test or on the bench, the 3478A offers 3 1/2
to 5 1/2 digit resolution for measuring dc volts, true RMS
ac volts, 2- and 4- wire ohms, and dc and RMS ac current.
The 3478A offers dc voltage performance from 100 nanovolt
sensitivity up to 300 volts (full scale), true RMS
capability up to 300 kHz, and resistance measurements from
100µΩ sensitivity to 30MΩ (full scale). Its dc and true RMS
ac current measuring capability is from 1µA sensitivity up
to 3A. The fast autorange capability of the 3478A allows you
to make measurements over a wide dynamic range without
sacrificing throughput rates.

By selecting the number of digits displayed and using the
autozero feature, the 3478A allows you flexibility in
measurement speed and accuracy. Up to 71 readings per
second can be made with the 3478A in the 3 1/2 digit mode.
The 3478A has a fast trigger mode which lets you bypass the
built-in settling time delay to make fast true RMS ac
measurements in systems applications.

These manuals are available for the above equipment:

Manual Type User Manual HewlettPackard-4845-Manual-Page-1-Picture
Pages 107
Size 4.03 Mbytes (4229650 Bytes)
Language english
Revision
Manual-ID/Number 03478-90055
Date February 1983
Quality Scanned document, all readable.
Upload date
MD5 317d046d640bfe2768a772c7e2ab9437
Downloads 502 since 19 November 2013
Information
HewlettPackard-4845-Manual-Page-1-Picture


Manual Type Service Manual HewlettPackard-4846-Manual-Page-1-Picture
Pages 161
Size 10.49 Mbytes (11000673 Bytes)
Language english
Revision
Manual-ID/Number 03478-90008
Date September 1987
Quality Scanned document, all readable.
Upload date
MD5 16780e340aa5741bfd8478260c17b1ff
Downloads 397 since 20 November 2013
Information
Serials 2619A37795 and above

1-2. The information in this manual is for the Installation,
 Operation, Performance, Calibration, and Service of the
 3478A Digital Multimeter. The manual is designed for the
 use of Service Trained Personnel. Other users should refer
 to the Operators Manual. This manual is separated into the
 following sections.

1-3. Section I, General Information

1-4. A short description of the manual and introduction to
 the 3478A is in Section I. The section also lists instrument
 options, specifications, and accessories.

1-5. Section II, Installation Procedures

1-6. This section explains how the 3478A is prepared for use
 and includes power requirements, line voltage selection, etc.
 The section also explains how to connect the multimeter for
 remote operation.

1-7. Section III, Operation

1-8. The condensed operating instructions of the 3478A, for the
 use of Service Trained Personnel, is in this section. For more
 complete instructions, refer to the Operators Manual.

1-9. Section IV, Performance Test and Calibration

1-10. The 3478A’s Performance Test and Calibration Procedures
 are in Section IV. The Required Equipment Table and an
 abbreviated specification table are also included.

1-11. Section V, Replaceable Parts

1-12. Section V lists the replaceable parts of the 3478A.
 It also includes pictures and illustrations of chassis
 and mechanical parts.

1-13. Section VI, Backdating

1-14. This section has information which adapts this manual
 to 3478A’s with serial numbers below the ones shown on the
 title page.

1-15. Section VII, Service

1-16. The 3478A’s Troubleshooting Procedures, Theory Of Operation,
 and Schematics are in Section VII. The troubleshooting
 information is in the form of Service Groups which are symptoms
 oriented (i.e., what is the failure). The complete theory of
 operation is in Service Group F and the Schematics are
 in Service Group G (last group).

1-17. Appendix A

1-18. The appendix has a condensed description of the HP-IB (Hewlett-Packard Interface Bus).
HewlettPackard-4846-Manual-Page-1-Picture


Manual Type User Manual HewlettPackard-4847-Manual-Page-1-Picture
Pages 104
Size 19.44 Mbytes (20383823 Bytes)
Language english
Revision 2
Manual-ID/Number 03478-90009
Date January 1988
Quality Scanned document, all readable.
Upload date
MD5 2116b702500310f1ca6de39ea49a81cc
Downloads 281 since 20 November 2013
Information
HewlettPackard-4847-Manual-Page-1-Picture


Manual Type Service Manual HewlettPackard-10085-Manual-Page-1-Picture
Pages 175
Size 11.46 Mbytes (12021104 Bytes)
Language english
Revision
Manual-ID/Number 03478-90006
Date 01 January 1984
Quality Scanned document, all readable.
Upload date
MD5 e3bbdd16ea66e4ffc224f66b6152efff
Downloads 20 since 31 December 2017
Information
1-1. INTRODUCTION

1-2. The information in this manual is for the Installation,
Operation, Performance, Calibration, and Service of the
3478A Digital Multimeter. The manual is designed for the use
of Service Trained Personnel. Other users should refer to
the Operators Manual. This manual is separated into the
following sections.

1-3. Section I, General Information

1-4. A short description of the manual and introduction to
the 3478A is in Section I. The section also lists instrument
options, specifications, and accessories.

1-5. Section II, Installation Procedures

1-6. This section explains how the 3478A is prepared for use
and includes power requirements, line voltage selection,
etc. The section also explains how to connect the multimeter
for remote operation.

1-7. Section III, Operation

1-8. The condensed operating instructions of the 3478A, for
the use of Service Trained Personnel, is in this section.
For more complete instructions, refer to the Operators Manual.

1-9. Section IV, Performance Test and Calibration

1-10. The 3478A’s Performance Test and Calibration
Procedures are in Section IV. The Required Equipment Table
and an abbreviated specification table are also included.

1-11. Section V, Replaceable Parts

1-12. Section V lists the replaceable parts of the 3478A. It
also includes pictures and illustrations of chassis and
mechanical parts.
1-13. Section VI, Backdating

1-14. This section has information which adapts this manual
to 3478A’s with serial numbers below the ones shown on the
title page.

1-15. Section VII, Service

1-16. The 3478A’s Troubleshooting Procedures, Theory Of
Operation, and Schematics are in Section VII. The
troubleshooting information is in the form of Service Groups
which are symptoms oriented (i.e., what is the failure). The
complete theory of operation is in Service Group F and the
Schematics are in Service Group G (last group).

1-17. Appendix A

1-18. The appendix has a condensed description of the HP-IB
(Hewlett-Packard Interface Bus).
HewlettPackard-10085-Manual-Page-1-Picture


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